US20180229858A1 - Transfer station for transferring containers between unmanned aerial vehicles and unmanned ground vehicle - Google Patents
Transfer station for transferring containers between unmanned aerial vehicles and unmanned ground vehicle Download PDFInfo
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- US20180229858A1 US20180229858A1 US15/949,791 US201815949791A US2018229858A1 US 20180229858 A1 US20180229858 A1 US 20180229858A1 US 201815949791 A US201815949791 A US 201815949791A US 2018229858 A1 US2018229858 A1 US 2018229858A1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/32—Ground or aircraft-carrier-deck installations for handling freight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
- B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/22—Taking-up articles from earth's surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
-
- B64C2201/128—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/60—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons
- B64U2101/67—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons the UAVs comprising tethers for lowering the goods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
- B65G2814/03—Loading or unloading means
- B65G2814/0398—Loading or unloading means for aircraft
Definitions
- the present invention relates to an autonomous transfer station for transferring packages between unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs), delivery systems and methods using such a transfer station.
- UAVs unmanned aerial vehicles
- UUVs unmanned ground vehicles
- the transfer station is inclusive of a housing defining an inner space, the housing having a front passage that connects the inner space with an outer environment for the passage of a UGV, and a top passage that connects the inner space with an outer environment for passage of a container.
- An upward funnel is provided within the inner space of the housing, the upward funnel having a chute with a lower enlarged inlet and an upper contracted outlet, the upper contracted outlet being dimensioned to communicate with the top passage of the housing for passage of a container.
- a downward funnel is supported above the housing, the downward funnel having a chute with an upper enlarged inlet and a lower contracted outlet, the lower contracted outlet being dimensioned to communicate with the top passage of the housing for passage of a container.
- An actuator system is provided for, selectively, engaging a container with a UAV suspension system and disengaging a container from a UAV suspension system.
- the actuator system is inclusive of one or more extendable and retractable slats that, when in the extended position, interact with a capture system of a container for, selectively, engaging the container with a load-bearing element of a UAV suspension system and disengaging the container from a load-bearing element of a UAV suspension system.
- the one or more slats interact with the capture system by, when in the extended position, opening a capture space of the capture system.
- a transfer system that is inclusive of a transfer station; a UGV having a holding space for carrying a container; a UAV having a suspension system for carrying a container; and a container that is transferrable between the UGV and the UAV.
- the container is dimensioned for reception within the holding space of the UGV, and the container is inclusive of a capture system for engaging the suspension system of the UAV.
- the capture system of the container is inclusive of a shell defining a capture space, one or more panels that open and close the capture space, and one or more biasing elements for biasing the panels to a closed position.
- An actuator system of the transfer station is inclusive of one or more extendable and retractable slats that, when in the extended position, contact and move the one or more panels of the capture system of the container to an open position.
- the suspension system of the UAV comprises an extendable and retractable cable, and a load-bearing element at an end of the cable, the load-bearing element being dimensioned for reception within the capture space of the capture system.
- the actuator system controls opening and closing of the capture system for, selectively, engaging the capture system with the suspension system of the UAV via insertion of the load-bearing element into the capture space, and disengaging the capture system from the suspension system of the UAV via removal of the load-bearing element from the capture space.
- a container may be transferred from a UAV to a UGV using the transfer station by positioning the UGV in the inner space of the housing of the transfer station, at a position that is predetermined to align the holding space of the UGV with the top passage of the housing.
- the UAV is then positioned vertically above the transfer station, at a position that aligns the suspension system of the UAV with the top passage of the housing, with the container supported on the suspension system.
- the UAV suspension system is then lowered to pass the container through the top passage of the housing and into the holding space of the UGV; and the slats of the actuator system are extended to move the panels of the capture system of the container to the open position.
- a container may be transferred from a UGV to a UAV using the transfer station by positioning the UGV in the inner space of the housing of the transfer station, at a position that is predetermined to align the holding space of the UGV with the top passage of the housing, with the container held in the holding space of the UGV.
- the UAV is then positioned vertically above the transfer station, at a position that aligns the suspension system of the UAV with the top passage of the housing.
- the slats of the actuator system are then extended to move the panels of the capture system of the container to the open position; and the UAV suspension system is then lowered to pass the load-bearing element through the top passage of the housing and into the capture space of the capture system of the container.
- FIG. 1 b shows a close-up sectional view of the transfer station in FIG. 1 a, illustrating a portion of a funnel and a top hatch of the transfer station;
- FIG. 3 c shows stability enhancing constructions for a reusable container according to FIGS. 3 a and 3 b;
- FIGS. 5 a -5 f show the interaction of a load-bearing element of a UAV and a capture system of a reusable container in performing a UAV pick-up of a container according to the present invention
- FIGS. 7 a -7 e show a UAV drop-off of a container according to the present invention
- FIGS. 8 a -8 e show a UAV pick-up of a container according to the present invention.
- FIG. 9 shows a multi-unit transfer station formed from aligning multiple individual multiple transfer stations according to FIGS. 2 a - 2 b.
- the present invention is inclusive of an autonomous transfer station for transferring packages between UAVs and UGVs, as well as a reusable package-carrying container that is transferrable between the UAVs and UGVs via the transfer station.
- the invention is further inclusive of a delivery system and method that utilizes the transfer station and reusable containers for completing fully automated point-to-point delivery of packages via one or more UAVs and one or more UGVs.
- FIG. 1 a shows an example of a transfer station 100 according to the present invention.
- the transfer station 100 includes a housing 102 that defines an inner space 104 ; the housing 102 having a front door 106 that opens and closes a first front passage 108 between the inner space 104 and an outer environment, and a top hatch 110 that opens and closes a second top passage 112 between the inner space 104 and an outer environment.
- a downwardly tapering funnel 114 is supported above the housing 102 , and an upwardly tapering funnel 116 is provided within the housing 102 .
- the front passage 108 of the housing 102 is dimensioned for a UGV 300 to enter the inner space 104 therethrough.
- the inner space 104 may be dimensioned to receive and fully enclose the UGV 300 with the front door 106 in a fully closed state.
- the top passage 112 of the housing 102 is dimensioned for a reusable container 200 to pass therethrough, for transfer between a UAV 400 outside the transfer station 100 and a UGV 300 parked at the inner space 104 of the transfer station 100 .
- the top passage 112 is dimensioned to closely correspond with the dimensions of the container 200 and is oriented to correspond with the orientation of a holding space 302 of a UGV 300 such that, when passing through the top passage 112 , the container 200 is oriented to correspond with the orientation of the holding space 302 of the UGV 300 .
- the downwardly tapering funnel 114 above the housing 102 guides the transfer of a container 200 from a UAV 400 above the transfer station 100 to a UGV 300 within the transfer station 100 ; and the upwardly tapering funnel 116 within the housing 102 guides the transfer of a container 200 from a UGV 300 within the transfer station 100 to a UAV 400 outside the transfer station 100 .
- both the downwardly tapering funnel 114 and the upwardly tapering funnel 116 are configured to guide containers 200 that pass therethrough to align with the orientation of the top passage 112 .
- Orientation of the container 200 within the funnels 114 / 116 may be achieved in any number of ways, including the use of specially shaped surfaces, magnets, hooks, mechanical arms, and combinations thereof.
- the front passage 108 and the top passage 112 may communicate the inner space 104 with a common outer environment.
- the front passage 108 may communicate the inner space 104 with an outer environment that is different from an outer environment with which the top passage 112 communicates the inner space 104 .
- a transfer station 100 may be provided in a building, with the top passage 112 (optionally via a top hatch 110 ) opening to a roof of the building and the front passage 108 (optionally via a front door 106 ) opening to an internal space of the building.
- a UGV 300 suitable for use with the transfer station 100 will include a holding space 302 dimensioned to receive a container 200 .
- the holding space 302 will be dimensioned to correspond with the dimensions of the container 200 and/or may include protruding structures for supporting the reusable container 200 .
- the protruding structures may serve to hold the container inside the UGV at a specific and non-flexible location; and the protruding structures may additionally have sensors on them to notify the station of the presence or absence of the container within the UGV.
- the holding space 302 is constructed with dimensions closely corresponding with the dimensions of the container 200
- Reliable positioning of the UGV 300 within the housing 102 may be achieved via a guiding system 118 that directs the UGV 300 to park at a position that is predetermined to align the holding space 302 with the top passage 112 .
- a container 200 may be reliably delivered to or taken from the holding space 302 of the UGV 300 via a simple raising or lowering motion through the top passage 112 , without requiring any lateral correction other than that provided by one of the funnels 114 / 116 .
- a guiding system 118 may take a variety of forms provided it functions to reliably direct a UGV 300 to the predetermined position.
- a guiding system 118 may include a contoured floor surface, such as a sloped surface having tracks that lead to preset points where the wheels of the UGV 300 will come to rest, with a stopping structure at the preset points (e.g., divots or protrusions).
- a guiding system 118 may include an automated conveyor, which may attach to a portion of the UGV 300 and then pull and/or push the UGV 300 to the predetermined position.
- the downwardly tapering funnel 114 includes a chute 126 having an upper enlarged inlet 128 and a lower contracted outlet 130 .
- the chute 126 is formed in a square-shape with four sloping surfaces; though the chute 126 may be formed in any preferred shape with any number of surfaces, including a conical shape formed with a single curved surface.
- the chute 126 is dimensioned such that the lower contracted outlet 130 has a length and width that corresponds with the length and width of the top passage 112 of the housing 102 .
- the track 134 may be a separate structure mounted on the housing 102 , or may be constructed monolithically in the housing 102 such as a recessed canal through which a base of the funnel 114 may slide.
- a movable funnel 114 may also be made to have a telescoping intermediate channel 132 that communicates the lower contracted outlet 130 of the chute 126 with a top passage 112 of a housing 102 a / 102 b / 102 c.
- the telescoping intermediate channel 132 may be expanded to extend through the opened top passage 112 to provide a fully shielded passage for transfer of a container 100 between the funnel 114 and the inner space 104 of the housing 102 .
- the container 200 may include positioning system (GPS) tracker for use in tracking the container 200 along its delivery route, and a battery or other power source for powering the GPS tracker.
- GPS positioning system
- a container 200 may be transferred between a holding bay of the UAV 400 and a holding space 302 of a UGV 300 via a UAV suspension system that includes an extendable and retractable cable 402 having a load-bearing element 404 at an end thereof; the load-bearing element 404 being dimensioned for reception and entrapment within the capture space 216 of the capture system 210 when the panels 214 are in the closed position (as in FIG. 4 a ).
- biasing elements 218 for biasing the panels 214 to the closed position, may include springs, magnets, electric motors, and combinations thereof.
- FIGS. 4 a - 4 e when a container 200 is being transferred from a UAV 400 to a UGV 300 via a transfer station 100 (a UAV drop-off transfer), after lowering the container 200 into the holding space 302 of the UGV 300 (as in FIG. 4 a ), the slats 140 of the actuator system 138 are activated to extend and press against the panels 214 of the capture system 210 with sufficient force to move the panels 214 to an open position (as in FIG. 4 b ). The UAV 400 then retracts the cable 402 to remove the load-bearing element 404 from the capture space 216 of the capture system 210 (as in FIG. 4 c ), after which the slats 140 are retracted (as in FIG. 4 d ) thereby allowing the biasing elements 218 to return the panels 214 to the closed position (as in FIG. 4 e ).
- the container 200 may be made with any given dimensions, provided the holding space 302 of the UGV 300 and the holding bay of the UAV 400 can be constructed with corresponding dimensions for receiving the container 200 , and provided the transfer station 100 may likewise be constructed with corresponding dimensions for handling the container 200 .
- the front door 106 and top hatch 110 may be made of any closure structure.
- closure structures that may be used for the front door 106 and/or top hatch 110 include a single panel or object closure (e.g., a moving plate), a multiple panel or object closure (e.g., a series of hinged panels, or a series of plates or bars), and combinations thereof.
- the panel(s) and/or object(s) making up the front door 106 and top hatch 110 may be made of any material offering a suitable degree of protection and durability.
- the transfer station 100 may omit a front door 106 and/or a top hatch 110 , such that the front and/or top passages 108 / 112 are always in an open state.
- a UGV positioning unit 506 may include one or more UGV positioning sensors for determining both that a UGV 300 is within the inner space 104 of the housing 102 and whether the UGV 300 is located at the predetermined position that aligns the holding space 302 of the UGV 300 with the top passage 112 (the top hatch 110 ) of the housing 102 , and for outputting a signal to the CCU 502 indicating positioning of the UGV 300 within the housing 102 , which may include positing information indicating whether the UGV 300 is entirely entered within inner space 104 , whether the UGV 300 is parked at the predetermined position, and/or the localized positioning data indicating relative positioning of the UGV 300 in relation to the predetermined position.
- suitable UGV positioning sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof.
- a UGV load unit 508 may include one or more UGV load sensors for determining whether the holding space 302 of a UGV 300 parked in the housing 102 is loaded with a container 200 , and for outputting a signal to the CCU 502 indicating load state of the UGV 300 as either empty or loaded with a container 200 .
- the UGV load sensors also detect changes in the load state of the UGV 300 , and output signals to the CCU 502 indicating changes in the load state of the UGV 300 that are indicative that a container 200 has either been delivered to or removed from the holding space 302 of the UGV 300 .
- a UAV positioning unit 514 may include one or more UAV positioning sensors for determining whether a UAV 400 is at a sufficient vertical position above the transfer station 100 for aligning a holding bay of the UAV 400 with the upper enlarged inlet 128 of the funnel 114 , and for outputting a signal to the CCU 502 indicating positioning of the UAV 400 , which may include positing information indicating whether the UAV 400 is sufficiently positioned to align the holding bay of the UAV 400 with the upper enlarged inlet 128 of the funnel 114 , and/or localized positioning data indicating relative positioning of the holding bay of the UAV 400 in relation to the upper enlarged inlet 128 of the funnel 114 .
- the funnel position unit 528 may also include one or more funnel position sensors that detect positioning of the funnel 114 , including whether the funnel 114 is positioned to align the lower contracted outlet 130 with the top passage 112 (top hatch 110 ) of the housing 102 , and/or which may detect the presence of an obstruction in the movement path of the funnel 114 along the track 134 (e.g., accumulated snow, etc.); and which output signals to the CCU 502 indicating the positioning of the funnel 114 and/or an obstruction state of the movement path of the slats 140 (e.g., obstructed, not obstructed).
- suitable funnel position sensors may include touch sensors, light sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof.
- the control system 500 may include a telescoping channel unit 530 .
- a telescoping channel unit 530 may include one or more telescoping channel motors that receive signals from the CCU 502 instructing extension and retraction of the telescoping channel 132 .
- the telescoping channel unit 530 may also include one or more telescoping channel sensors that detect positioning of the telescoping channel 132 (e.g., fully extended, fully retracted, and/or intermediate positions thereof), and/or which may detect the presence of an obstruction in the movement path of the telescoping channel 132 (e.g., a closed top hatch, etc.); and which output signals to the CCU 502 indicating the positioning of the telescoping channel 132 and/or an obstruction state of the movement path of the telescoping channel 132 (e.g., obstructed, not obstructed).
- suitable telescoping channel sensors may include touch sensors, distance sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof.
- a UGV communications relay 602 may transmit data between the CCU 502 and one or more nearby UGVs 300 conveying load states of the UGVs 300 (e.g., available to receive a container 200 , and/or available to give a container 200 ); delivery statuses of the UGVs 300 (e.g., seeking a UAV drop-off transfer or a UAV pick-up transfer); and/or positional data informing the relative positions of the UGVs 300 (e.g., as being within the inner space 104 ; as being parked at the predetermined position within the inner space 104 ; and/or localized positioning data indicating relative positioning of the UGV 300 in relation to the predetermined position).
- load states of the UGVs 300 e.g., available to receive a container 200 , and/or available to give a container 200
- delivery statuses of the UGVs 300 e.g., seeking a UAV drop-off transfer or a UAV pick-up transfer
- positional data informing the relative positions of the
- a UAV communications relay 604 may transmit data between the CCU 502 and one or more nearby UAVs 400 conveying load states of the UAVs 300 (e.g., available to receive a container 200 , and/or available to give a container 200 ); delivery statuses of the UAVs 400 (e.g., seeking a UAV drop-off transfer or a UAV pick-up transfer); and/or positional data informing the relative positions of the UAVs 400 (e.g., as being sufficiently positioned to align the holding bay of the UAV 400 with the upper enlarged inlet 128 of the funnel 114 ; and/or localized positioning data indicating relative positioning of the holding bay of the UAV 400 in relation to the upper enlarged inlet 128 of the funnel 114 ).
- load states of the UAVs 300 e.g., available to receive a container 200 , and/or available to give a container 200
- delivery statuses of the UAVs 400 e.g., seeking a UAV drop-off transfer or a
- a station communications relay 606 may transmit data between the CCU 502 and one or more nearby transfer stations 100 b / 100 c for conveying a status of the transfer stations (e.g., whether a UGV 300 is housed therein; a load state of a UGV 300 housed therein; etc.).
- the transfer station 100 is one unit 100 a in a multi-unit transfer station 100 ′
- the station communications relay 606 may transmit data between the CCU 502 and the central control units of the one or more transfer stations 100 b / 100 c for coordinating movement of a shared funnel 114 along the aligned tracks 134 a / 134 b / 134 c.
- the transfer station 100 may be part of a larger delivery network in which one or more delivery servers may oversee the delivery operations within a given geographical region by, for example, managing the driving routes of UGVs 300 , the flight routes of UAVs 400 , and the loading and transferring schedules of transfer stations 100 within a given region.
- a delivery server communications relay 608 may transmit data between the CCU 502 and one or more delivery servers to update the status of the transfer station 100 with the one or more delivery servers (e.g., whether a UGV 300 is housed therein; the load state of a UGV 300 housed therein; whether a replacement container 200 is needed for delivery to a UGV 300 housed therein).
- a power supply unit 700 for powering the control system 500 may include a local power source 702 (e.g., a replaceable and/or rechargeable battery; a fuel-based power source; etc.) that powers the CCU 502 as well as any other components of the control system 500 that require electrical power to operate.
- the power supply unit 700 may communicate with one or more external power sources 704 for charging the local power source 702 .
- external power sources 704 may include solar panels, wind turbines, hydro turbines, kinetic energy transducers (e.g., for vibration energy conversion), electrical energy grids, fossil-fuel power sources, and combinations thereof.
- the transfer station may be constructed in any suitable place for making use of the chosen power source—e.g., at an area of unobstructed sunlight for extracting solar energy; at an area of prominent wind flow for extracting wind energy from wind turbines; near a waterway to extract hydro energy from hydroelectric turbines; etc.
- a power transfer unit 706 may be provided for establishing an electrical communication for transferring electrical energy between the power supply unit 700 and an on-board power source of a UGV 300 such that the local power source 702 may charge the on-board power source of the UGV 300 .
- the power transfer unit 706 may permit the UGV 300 to recharge the local power source 702 as a back-up redundancy to one or more external power sources 704 that serve as the primary power delivery of electrical power for the local power source 702 .
- the power transfer unit 706 takes the form of a pair of mating electrical connections, with one connection provided at the transfer station 100 and the other mating connection provided on UGVs 300 .
- Non-limiting examples of mating electrical connections that may be included in the power transfer unit 706 include one or more mating electrical sockets and plugs, one or more mating electrical plates and slip brushes, one or more mating electrical power lines and slip surfaces, and combinations thereof.
- the power transfer unit 706 may be exposed for engagement by a UGV 300 without any advance electrical power requirement by the transfer station, and the power source of the UGV 300 (upon engaging the power transfer unit 706 ) may then serve as the sole power source for operation of the transfer station 100 , without requiring a local power source 702 within the housing 102 .
- the transfer station 100 may be constructed without any front door 106 , such that a UGV 300 may navigate into the inner space 104 and engage the power transfer unit 706 .
- the power transfer unit 706 may take the form of a power receiving structure that extends between a point outside of the transfer station 100 , ahead of the front door 106 , to a point in the inner space 104 of the transfer station housing 102 (e.g., an overhead electrical wire; an underside electrical rail or plate; etc.)
- the UGV 300 may have a power conveying structure (e.g., an overhead electrical bar or surface; a underside electrical slip brush; etc.) that engages the power receiving structure at a location external of the power transfer station 100 , such that the UGV 300 may engage the power transfer unit 706 to deliver operational power upon approaching the transfer station 100 .
- the local power source 702 may deliver electrical power to the CCU 502 , and the several further components of the control system 500 , via one or more electrical lines.
- the transfer station 100 includes a moveable funnel 114 mounted on a track 134 atop the housing 102 , such as when the transfer station 100 is part of a multi-unit transfer station 100 ′, the track 134 may be constructed to transfer electrical power to any components located on the movable funnel 114 (e.g., funnel motors, sensors, and/or receivers; actuator motors, sensors and/or receivers; etc.) via an electrical connection between the track 134 and the movable funnel 114 .
- the track 134 may include an electrical rail and the movable funnel 114 may include one or more electrical slip brushes that establish an electrical connection with the electrical rail.
- control system 500 shown in FIG. 6 is one example of a control system 500 that may be used with the present invention, and that a suitable control system 500 for use with the invention may have a number of variations.
- multiple individual units may be replaced by a single unit that performs all the functions of the single unit.
- a single UGV coordination unit that is capable of precisely monitoring the location and positioning of a UGV 300 so as to perform the functions of each of the UGV approach unit 504 , the UGV positioning unit 506 , and the UGV departure unit 510 .
- a single UAV coordination unit that is capable of precisely monitoring the location and positioning of a UAV 400 so as to perform the functions of each of the UAV approach unit 512 and the UAV positioning unit 514 .
- a single communications relay may be capable of transmitting sufficiently detailed data from an outside source (e.g., a delivery server; a global positioning system; etc.) such that the data provided by the single communication relay permits the omission of one or more units.
- an outside source e.g., a delivery server; a global positioning system; etc.
- a control system 500 may omit the UGV approach unit 504 , the UGV positioning unit 506 , the UGV load unit 508 , and the UGV departure unit 510 .
- a control system 500 may omit the UAV approach unit 512 and the UAV positioning unit 514 .
- a transfer station 100 may be used to transfer reusable containers 200 from UAVs 400 to UGVs 300 (UAV drop-off transfers), and to transfer reusable containers 200 from UGVs 300 to UAVs 400 (UAV pick-up transfers).
- UAV drop-off transfers UAV drop-off transfers
- UAV pick-up transfers UAV pick-up transfers
- Such transfers may be managed by one or more delivery servers.
- a delivery server Upon determining that a given transfer station 100 is empty, a delivery server will output a signal instructing a UGV 300 to travel to and enter the transfer station 100 .
- the UGV approach unit 504 Upon detecting the UGV 300 within a predetermined proximity of the transfer station 100 , the UGV approach unit 504 outputs a signal to the CCU 502 , and the CCU 502 then outputs a signal instructing the front door unit 516 to open the front door 106 .
- the UGV positioning unit 506 determines the UGV 300 has fully entered the inner space 104 of the transfer station housing 102 , and outputs a signal to the
- the CCU 502 then outputs a signal instructing the front door unit 516 to close the front door 106 .
- the guiding system 118 When entering the inner space 104 , the guiding system 118 will guide the UGV 300 to the predetermined position for aligning the holding space 302 of the UGV 300 with the top passage 112 (the top hatch 110 ) of the housing 102 .
- a guiding unit 518 may output a signal to the CCU 502 when there is detected the presence of the UGV 300 within proximity for engagement by the guiding system 118 ; and the CCU 502 may then output signals to the guiding unit 518 instructing the engagement of the UGV 300 and driving of the UGV to the predetermined position.
- the UGV positioning unit 506 determines the UGV 300 is at the predetermined position, the UGV positioning unit 506 will output a signal to the CCU 502 confirming the same.
- the UGV load unit 508 determines the load state of the UGV 300 , and outputs a signal to the CCU 502 indicating whether a reusable container 200 is present in the holding space 302 of the UGV 300 .
- the CCU 502 then outputs a signal to the communications unit 600 instructing the delivery server communications relay 608 to contact one or more delivery servers to update the status of the transfer station 100 as housing a UGV 300 , and further indicating the load state of the UGV 300 .
- FIGS. 4 a -4 e and 7 a -7 e show one example of the operations that may be performed in a UAV drop-off transfer.
- the UAV approach unit 512 Upon detecting the UAV 400 within a predetermined proximity of the transfer station 100 , the UAV approach unit 512 outputs a signal to the CCU 502 indicating approach of the UAV 400 . If the transfer station 100 is provided as one unit within a multi-unit transport station 100 ′, then following reception of the signal indicating approach of a UAV 400 , the CCU 502 will output a signal to the funnel positioning unit 528 instructing the funnel 114 to move along the tracks 134 a / 134 b / 134 c of the multi-unit transfer station 100 ′ to align with the top hatch 110 a of the individual transfer station 100 a in which the container-carrying UGV 300 is parked.
- the CCU 502 may also communicate with the other transfer stations 100 b / 100 c in the multi-unit transfer station 100 ′, via the station communications relay 606 , to coordinate movement of the funnel 114 . Once the funnel 114 is aligned with the top hatch 110 a, the funnel positioning unit 528 will output a signal to the CCU 502 confirming funnel alignment.
- the UAV 400 may output a signal to the CCU 502 , via the UAV communications relay 602 , indicating the UAV 400 is above the transfer station 100 .
- a UAV positioning unit 514 may determine whether the UAV 400 is positioned at an appropriate vertical position above the transfer station 100 to align a holding bay of the UAV 400 with the upper enlarged inlet 128 of the funnel 114 , and output a signal to the CCU 502 indicating whether the UAV 400 is positioned in such vertical alignment with the funnel 114 .
- the CCU 502 may coordinate with the UAV 400 via the UAV communications relay 602 to assist the UAV 400 in navigating to a proper position for such alignment while the UAV positioning unit 514 continues to monitor the positioning of the UAV 400 and updating the CCU 502 as to whether the UAV 400 is positioned to so align with the funnel 114 .
- the CCU 502 Upon confirming the UAV 400 is positioned to align a holding bay of the UAV 400 with the upper enlarged inlet 128 of the funnel 114 , the CCU 502 then outputs a signal to the top hatch unit 520 instructing opening of the top hatch 110 .
- the UGV 300 may include a holding hatch that encloses the holding space 302 ; and in such instances the CCU 502 , upon instructing the opening of the top hatch 110 of the housing 102 , will also instruct the UGV communications relay 604 to output a signal to the UGV 300 to open the holding hatch to expose the holding space 302 .
- the CCU 502 also outputs a signal to the telescoping channel unit 530 instructing extension of the telescoping channel 132 through the opened top passage 112 .
- the CCU 502 then instructs the UAV communications relay 602 to output a signal to the UAV 400 indicating that the top hatch 110 is open (as in FIG. 7 a ).
- the UAV 400 then activates a suspension system to lower the cable 402 supporting a reusable container 200 (as in FIG. 7 b ); the container 200 being supported on the cable 402 by entrapment of a load-bearing element 404 at the end of the cable 402 within a capture system 210 of the container 200 (as in FIG. 4 a ).
- the container 200 enters into the downwardly tapered funnel 114 through the upper enlarged inlet 128 and is guided through the chute 126 and out the lower contacted outlet 130 , such that the container 200 is aligned both for entry through the opened top passage 112 of the housing 102 and reception within the holding space 302 of the UGV 300 parked in the transfer station 100 (as in FIG. 7 b ).
- the UGV load unit 508 Upon determining that there has been a change in the load state of the UGV 300 , the UGV load unit 508 outputs a signal to the CCU 502 indicating that the container 200 has been received within the holding space 302 of the UGV 300 .
- the CCU 502 then outputs a signal to the actuator unit 522 instructing extension of the slats 140 of the actuator system 138 to open the capture system 210 of the container 200 (as in FIGS. 7 c ).
- the capture unit 524 determines the slats 140 have properly engaged with the capture system 210 , the capture unit 524 then outputs a signal to the CCU 502 indicating that the capture system 210 is in an open state (as in FIG. 4 b ).
- the CCU 502 then outputs a signal directing the UAV communications relay 602 to instruct the UAV 400 to retract the cable 402 (as in FIG. 7 d ), thereby removing the load-bearing element 404 from the capture system 210 of the container 200 (as in FIG. 4 c ).
- the load-bearing unit 526 Upon determining the load-bearing element 404 has been removed from the capture space 216 , the load-bearing unit 526 outputs a signal to the CCU 502 indicting the same, and the CCU 502 then outputs a signal instructing the actuator unit 522 to retract the slats 140 (as in FIGS. 7 e and 4 d ), thereby allowing the capture system 210 of the container 200 to return to a closed position (as in FIG. 4 e ).
- the CCU 502 next outputs a signal to the telescoping channel unit 530 instructing retraction of the telescoping channel 132 from the opened top passage 112 .
- the CCU 502 then outputs a signal instructing the top hatch unit 520 to close the top hatch 110 .
- the CCU 502 may then output a signal directing the delivery server communications relay 608 to contact one or more delivery servers to update the load state of both the UGV 300 parked in the transfer station 100 and the UAV 400 .
- FIGS. 5 a -5 f and 8 a -8 e show one example of the operations that may be performed in a UAV pick-off transfer.
- Detection of the approaching UAV 400 , optional movement of a funnel 114 in a multi-unit transfer station 100 ′, and confirmation of alignment between a holding bay of the UAV 400 and the funnel 114 of the transfer station proceed in the same manner here as during a UAV drop-off transfer; and so a discussion is not repeated here.
- the CCU 502 Upon confirming the UAV 400 is positioned to align a holding bay of the UAV 400 with the upper enlarged inlet 128 of the funnel 114 , the CCU 502 then outputs a signal to the top hatch unit 520 instructing opening of the top hatch 110 (as in FIG. 8 a ).
- the CCU 502 will also instructs the UGV communications relay 604 to output a signal to the UGV 300 to open the holding hatch to expose the holding space 302 .
- the CCU 502 also outputs a signal to the telescoping channel unit 530 instructing extension of the telescoping channel 132 through the opened top passage 112 .
- the CCU 502 then outputs a signal to the actuator unit 522 instructing extension of the slats 140 of the actuator system 138 to engage and open the capture system 210 of the container 200 (as in FIG. 8 b ).
- the capture unit 524 determines the slats 140 have properly engaged with the capture system 210 , the capture unit 524 then outputs a signal to the CCU 502 indicating the capture system 210 is in an open state (as in FIG. 5 b ).
- the CCU 502 then outputs a signal directing the UAV communications relay 602 to instruct the UAV 400 that the container 200 is available for pick-up.
- the UAV 400 Upon receiving a signal indicating the container 200 is available for pick-up, the UAV 400 activates the suspension system to lower the cable 402 having the load-bearing element 404 into the downwardly tapered funnel 114 (as in FIG. 8 c ).
- the funnel 114 together with the extended funnel shape formed form the extended slats 140 , guides the load-bearing element 404 into the capture space 216 of the capture system 210 on the container 200 (as in FIG. 5 c ).
- the actuator unit 522 outputs a signal to the CCU 502 confirming the same, and the CCU 502 then outputs a signal directing the UAV communications relay 602 to instruct the UAV 400 that the container 200 is ready for removal.
- the UAV 400 then retracts the cable 402 thereby raising the container 200 that is supported thereon by entrapment of the load-bearing element 404 within the capture system 210 .
- the CCU 502 next outputs a signal to the telescoping channel unit 530 instructing retraction of the telescoping channel 132 from the opened top passage 112 .
- the CCU 502 then outputs a signal instructing the top hatch unit 520 to close the top hatch 110 .
- the CCU 502 may then output a signal directing the delivery server communications relay 608 to contact one or more delivery servers to update the load state of both the UGV 300 parked in the transfer station 100 and the UAV 400 .
- a delivery server may output a signal instructing the UGV 300 to depart the transfer station 100 . For example, if the transfer station 100 is housing a UGV 300 that is determined to have one or more containers 200 that requiring ground delivery, then the delivery server may instruct the UGV 300 to depart the transfer station 100 to complete ground delivery of the one or more containers 200 .
- the transfer station 100 is housing a UGV 300 that is determined to be in need of a reusable container 200 , and if the delivery server has received a request from a sender for ground pick-up of a container 200 for delivery, then the delivery server may instruct the UGV 300 to depart the transfer station 100 for ground retrieval of the container 200 .
- a delivery server When instructing the departure of a UGV 300 from a transfer station 100 , a delivery server will also communicate with the transfer station 100 via the delivery server communications relay 608 to instruct departure of the UGV 300 .
- the CCU 502 Upon receiving instructions that a UGV 300 is to depart the transfer station 100 , the CCU 502 will output a signal instructing the front door unit 516 to open the front door 106 .
- the UGV 300 may depart the housing 102 under its own power; though in examples where the transfer station 100 includes an automated guiding system 118 (e.g., an automated conveyor), departure of the UGV 300 may be effected in whole or in part by the guiding system 118 .
- the CCU 502 will output signals to the guiding unit 518 instructing driving the UGV 300 to exit the housing 102 and instructing disengagement of the UGV 300 upon reaching an exit position of the guiding system.
- an automated guiding system 118 e.g., an automated conveyor
- the UGV departure unit 510 determines the UGV 300 has fully exited the housing 102 , the UGV departure unit 510 will output a signal to the CCU 502 indicating the same; and the CCU 502 will then output a signal instructing the front door unit 516 to close the front door 110 .
- the CCU 502 may then output a signal directing the delivery server communications relay 608 to contact one or more the delivery servers to update the status of the transfer station 100 to indicate the UGV 300 has exited and/or that the transfer station 100 is empty.
- a transfer station such as that described herein enables a point-to-point delivery system and method whereby packages may be delivered directly to a final destination via the combined operation of one or more UAVs in traversing one or more portions of the delivery route by air, and one or more UGVs in traversing one or more other portions of the delivery route by ground.
- a UGV may be used to deliver a package to a final destination
- the transfer station enables transfer of packages from a UAV to a UGV while the UAV remains in flight, there is no need for the UAV to land at any point during delivery, and it possible for the UAV to remain out of public ground space.
- Transfer stations such as that described herein may be installed at various locations to establish a delivery grid around a city or geographical region to be serviced.
- the transfer stations may located exclusively outside populated areas of the city or region to be served; or they may be located within populated areas, though at designated locations that are deemed to present minimal to no interference with the local population (e.g., sidewalks, parking lots, building roofs, or any open areas with sufficient clearance).
- UAVs may be used to traverse longer portions of the delivery route and UGVs may be used to complete shorter portions of the delivery route (such as the last one-thousand or so feet of a delivery route).
- the transfer station may be provided on the local premises or property of a business or government. This may allow businesses or governments to benefit from quick and efficient deliveries via a fully automated system. However, transfer stations such as that described herein may also be used simply at entertainment venues or events such as: amusement parks, carnivals, sport events, cruises, concerts, large weddings or private functions to facilitate the transfer of items or packages to attendees or guests.
- a transfer station or a delivery system including such transfer stations, may be used for business-to-business deliveries, business-to-consumer deliveries, and consumer-to-consumer deliveries.
- a delivery system according to the present invention may also be operable with a software application that can be downloaded to remote systems having a user-interface. In this way, companies may download the application for use in delivering packages from warehouses or stores directly to customers; and individuals may download the application for use in sending private, non-retail packages directly to one-another.
- a reusable container may need to be provided to a transfer station after a UAV has taken a package-carrying container away from a UGV parked therein. This may be accomplished by having another UAV deliver an empty container to the UGV—and this may be performed by UAVs between delivery tasks, by UAVs that are specially tasked solely with replacing containers.
- a transfer station is scalable, and may be made to any suitable dimensions for accommodating UGVs and containers of many various sizes and shapes; and that a transfer station may also be made to have any number of top passages (with or without top hatches) and corresponding funnels for facilitating transfer of containers with
- a transfer station may be made with both a front door and a back door, so as to enable a drive-through type delivery to a UGV—which may include sequentially delivering multiple packages to a single UGV that has multiple holding spaces along its length.
- a transfer station may be constructed as a grounded structure, or may be supported on another foundation or structure as needed.
- a transfer station may be supported on a raises structure (e.g., stilts) to protect it from potential flooding.
- a transfer station may have multiple rows of single car stations that may house UGVs for charging, cleaning and informational updates. Multiple stations may be aggregated on top of one another, side-by-side, or under landscape elements such as planter boxes or even bleachers for public seating; and may be built into the landscape in many variations.
- a transfer station according to the present invention may also be constructed with a movement mechanism (e.g., a set of wheels) that may enable autonomous driving of the transfer station itself, for movement of the station between different locales.
- a movement mechanism e.g., a set of wheels
- a nearby station that is not in use may relocate to the area of high demand to assist in the increased demand at that area.
- a transfer station may be used to transfer: trash containers relative to UGVs that operate as trash collecting and street sweeping vehicles; snow, leaf or compost containers relative to UGV's that operate as snow, leaf or compost removal vehicles; refill containers relative to UGVs that operate to refill autonomous dispensing machines (e.g., vending machines; automatic teller machines; etc.); and animal transfer containers relative to UGV's that operate to trap and capture wildlife.
- trash containers relative to UGVs that operate as trash collecting and street sweeping vehicles
- snow, leaf or compost containers relative to UGV's that operate as snow, leaf or compost removal vehicles
- refill containers relative to UGVs that operate to refill autonomous dispensing machines (e.g., vending machines; automatic teller machines; etc.)
- animal transfer containers relative to UGV's that operate to trap and capture wildlife.
- a transfer station according to the present invention may use an actuator system that uses a mechanism other than the flaps discussed herein.
- a transfer station according to the present invention may use an actuator system that includes an arm that extends outward, inward, downward and/or upward and which has the shape of a small funnel for connecting to lower portion of the downwardly tapering, and which has a diameter corresponding with outer dimensions of the UAV load-bearing element.
- the arm could be limited to a single movement direction, provided it is able to interact with the capture system of the container for guiding the load-bearing element into the capture system for pick-ups and ejecting the load-bearing element from the capture system for drop-offs.
- a transfer station may include one or more safety systems, including caution lights or other signaling systems that activate when the transfer station is interacting with a UAV and/or a UGV for alerting bystanders; as well as one or more cameras or other monitoring systems for observing and/or recording operation of the transfer station; and one or more shut-down systems for terminating operation of the transfer station if there is detected a failure or emergency during operation thereof.
- safety systems including caution lights or other signaling systems that activate when the transfer station is interacting with a UAV and/or a UGV for alerting bystanders
- cameras or other monitoring systems for observing and/or recording operation of the transfer station
- shut-down systems for terminating operation of the transfer station if there is detected a failure or emergency during operation thereof.
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- Warehouses Or Storage Devices (AREA)
Abstract
A transfer station includes a housing defining an inner space, and having a front passage for passage of a UGV and a top passage for passage of a container. One or more funnels are provided at the top passage for guiding the passage of containers therethrough, and an actuator system is provided for, selectively, engaging a container with a UAV suspension system and disengaging a container from a UAV suspension system. Also provided is a transfer system that is inclusive of the transfer station, a UAV, a UGV, and a reusable container; and methods of transferring reusable containers between UAVs and UGVs.
Description
- The present invention relates to an autonomous transfer station for transferring packages between unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs), delivery systems and methods using such a transfer station.
- Recent technological developments have allowed a number of industries to benefit from the low cost and efficient operations of UAVs. For example, the agriculture industry uses UAVs to survey land and monitor irrigation systems; the filming industry uses UAVs to capture camera shots that are not possible using conventional filming methods; and the architecture industry uses UAVs to create 3D images of properties for rendering structural landscapes.
- An industry of particular importance that may also benefit from use of UAVs is the delivery industry. Many companies are beginning to realize the potential benefits UAVs may provide to the delivery industry, and are developing UAV-based delivery methods. One such UAV-based delivery method is a fully autonomous ‘point-to-point’ delivery method, where a UAV flies directly from the sender to the recipient.
- However, current UAV-based point-to-point delivery methods present certain concerns in that the proximity of the UAV to bystanders, wildlife and/or physical structures along the delivery route may be undesirable due to the potential noise pollution, privacy concerns relative to drone cameras, demands associated with UAV landing space, and safety issues such as potential in-flight and landing collisions. A possible solution to these concerns is to have a UAV deliver the package to a remote delivery station. However, such use of remote delivery stations undermines the autonomous point-to-point delivery method by requiring that recipients travel to the delivery station to pick up packages, or that a separate delivery service be provided to transport packages from the remote delivery station to the recipient.
- Accordingly, there remains a need in the art for a UAV-based delivery system and method that provides a fully automated point-to-point delivery of packages, while also addressing the concerns that are presented in flying a UAV directly from a sender to a recipient.
- A transfer station is provided for transferring containers between an unmanned aerial vehicle (UAV) and an unmanned ground vehicle (UGV), such transfers including UAV to UGV transfers (i.e., UAV drop-off transfers) and UGV to UAV transfers (i.e., UAV pick-up transfers).
- The transfer station is inclusive of a housing defining an inner space, the housing having a front passage that connects the inner space with an outer environment for the passage of a UGV, and a top passage that connects the inner space with an outer environment for passage of a container. An upward funnel is provided within the inner space of the housing, the upward funnel having a chute with a lower enlarged inlet and an upper contracted outlet, the upper contracted outlet being dimensioned to communicate with the top passage of the housing for passage of a container. A downward funnel is supported above the housing, the downward funnel having a chute with an upper enlarged inlet and a lower contracted outlet, the lower contracted outlet being dimensioned to communicate with the top passage of the housing for passage of a container. An actuator system is provided for, selectively, engaging a container with a UAV suspension system and disengaging a container from a UAV suspension system.
- The downward funnel may be supported movably along a track that extends along a top of the housing; and the housing may be a modular housing that aligns and engages with at least one more substantially identical modular housing to form a multi-unit transfer station. When two or more modular housings are aligned and engaged, as a multi-unit transfer station, the tracks extending along the top of the modular housings also align and engage with one another in series, and the downward funnel is movable along the aligned and engaged tracks for selectively moving between the individual modular housings.
- The actuator system is inclusive of one or more extendable and retractable slats that, when in the extended position, interact with a capture system of a container for, selectively, engaging the container with a load-bearing element of a UAV suspension system and disengaging the container from a load-bearing element of a UAV suspension system. The one or more slats interact with the capture system by, when in the extended position, opening a capture space of the capture system.
- The housing further includes a front door that opens and closes the front passage, a top hatch that opens and closes the top passage, and a control system for controlling the front door and the top hatch. The control system may open the front door based on a determination that a UGV is positioned at the front passage for entering the inner space of the housing, and may open the top hatch based on a determination that a UAV is above the second passage for accessing the inner space of the housing. The control system may also condition the opening of the top hatch based on a further determination that a UGV is present in the inner space of the housing at a position that is predetermined to align a holding space of the UGV with the top passage of the housing. The control system may also include a communications system for communicating with UGVs, UAVs, other transfer stations, and/or one or more remote delivery servers.
- Also provided is a transfer system that is inclusive of a transfer station; a UGV having a holding space for carrying a container; a UAV having a suspension system for carrying a container; and a container that is transferrable between the UGV and the UAV. The container is dimensioned for reception within the holding space of the UGV, and the container is inclusive of a capture system for engaging the suspension system of the UAV.
- The capture system of the container is inclusive of a shell defining a capture space, one or more panels that open and close the capture space, and one or more biasing elements for biasing the panels to a closed position. An actuator system of the transfer station is inclusive of one or more extendable and retractable slats that, when in the extended position, contact and move the one or more panels of the capture system of the container to an open position. The suspension system of the UAV comprises an extendable and retractable cable, and a load-bearing element at an end of the cable, the load-bearing element being dimensioned for reception within the capture space of the capture system. The actuator system controls opening and closing of the capture system for, selectively, engaging the capture system with the suspension system of the UAV via insertion of the load-bearing element into the capture space, and disengaging the capture system from the suspension system of the UAV via removal of the load-bearing element from the capture space.
- A container may be transferred from a UAV to a UGV using the transfer station by positioning the UGV in the inner space of the housing of the transfer station, at a position that is predetermined to align the holding space of the UGV with the top passage of the housing. The UAV is then positioned vertically above the transfer station, at a position that aligns the suspension system of the UAV with the top passage of the housing, with the container supported on the suspension system. The UAV suspension system is then lowered to pass the container through the top passage of the housing and into the holding space of the UGV; and the slats of the actuator system are extended to move the panels of the capture system of the container to the open position. The UAV suspension system is then raised to remove the load-bearing element from the capture space of the capture system and out the top passage of the housing, after which the slats of the actuator system are retracted to permit the panels of the capture system to return to a closed position.
- A container may be transferred from a UGV to a UAV using the transfer station by positioning the UGV in the inner space of the housing of the transfer station, at a position that is predetermined to align the holding space of the UGV with the top passage of the housing, with the container held in the holding space of the UGV. The UAV is then positioned vertically above the transfer station, at a position that aligns the suspension system of the UAV with the top passage of the housing. The slats of the actuator system are then extended to move the panels of the capture system of the container to the open position; and the UAV suspension system is then lowered to pass the load-bearing element through the top passage of the housing and into the capture space of the capture system of the container. The slats of the actuator system are then retracted to permit the panels of the capture system to return to a closed position, entrapping the load-bearing element within the capture space; after which the UAV suspension system is raised to lift the container from the holding space of the UGV and out the top passage of the housing.
- Both the foregoing general description and the following detailed description are exemplary and explanatory only and are intended to provide further explanation of the invention as claimed. The accompanying drawings are included to provide a further understanding of the invention; are incorporated in and constitute part of this specification; illustrate several embodiments of the invention; and, together with the description, serve to explain the principles of the invention.
- Further features and advantages of the invention can be ascertained from the following detailed description that is provided in connection with the drawings described below:
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FIG. 1a shows a transfer station according to the present invention, in use with a UAV and a UGV according to the present invention; -
FIG. 1b shows a close-up sectional view of the transfer station inFIG. 1 a, illustrating a portion of a funnel and a top hatch of the transfer station; -
FIG. 2a shows another view of a transfer station according to the present invention; -
FIG. 2b shows a cross-sectional elevation view of the transfer station inFIG. 2 a; -
FIG. 3a shows a closed view of a closed reusable container for use with a transfer station according to the present invention; -
FIG. 3b shows an open view of the reusable container inFIG. 3 a; -
FIG. 3c shows stability enhancing constructions for a reusable container according toFIGS. 3a and 3 b; -
FIGS. 4a-4e show the interaction of a load-bearing element of a UAV and a capture system of a reusable container in performing a UAV drop-off of a container according to the present invention; -
FIGS. 5a-5f show the interaction of a load-bearing element of a UAV and a capture system of a reusable container in performing a UAV pick-up of a container according to the present invention; -
FIG. 6 shows a schematic of a control system of a transfer station according to the present invention; -
FIGS. 7a-7e show a UAV drop-off of a container according to the present invention; -
FIGS. 8a-8e show a UAV pick-up of a container according to the present invention; and -
FIG. 9 shows a multi-unit transfer station formed from aligning multiple individual multiple transfer stations according toFIGS. 2a -2 b. - The following disclosure discusses the present invention with reference to the examples shown in the accompanying drawings, though does not limit the invention to those examples.
- The present invention is inclusive of an autonomous transfer station for transferring packages between UAVs and UGVs, as well as a reusable package-carrying container that is transferrable between the UAVs and UGVs via the transfer station. The invention is further inclusive of a delivery system and method that utilizes the transfer station and reusable containers for completing fully automated point-to-point delivery of packages via one or more UAVs and one or more UGVs.
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FIG. 1a shows an example of atransfer station 100 according to the present invention. Thetransfer station 100 includes ahousing 102 that defines aninner space 104; thehousing 102 having afront door 106 that opens and closes afirst front passage 108 between theinner space 104 and an outer environment, and atop hatch 110 that opens and closes a secondtop passage 112 between theinner space 104 and an outer environment. A downwardly taperingfunnel 114 is supported above thehousing 102, and an upwardly tapering funnel 116 is provided within thehousing 102. - The
front passage 108 of thehousing 102 is dimensioned for aUGV 300 to enter theinner space 104 therethrough. In some instances, theinner space 104 may be dimensioned to receive and fully enclose theUGV 300 with thefront door 106 in a fully closed state. Thetop passage 112 of thehousing 102 is dimensioned for areusable container 200 to pass therethrough, for transfer between aUAV 400 outside thetransfer station 100 and aUGV 300 parked at theinner space 104 of thetransfer station 100. Preferably, thetop passage 112 is dimensioned to closely correspond with the dimensions of thecontainer 200 and is oriented to correspond with the orientation of a holdingspace 302 of aUGV 300 such that, when passing through thetop passage 112, thecontainer 200 is oriented to correspond with the orientation of the holdingspace 302 of theUGV 300. - The downwardly tapering
funnel 114 above thehousing 102 guides the transfer of acontainer 200 from aUAV 400 above thetransfer station 100 to aUGV 300 within thetransfer station 100; and the upwardly tapering funnel 116 within thehousing 102 guides the transfer of acontainer 200 from aUGV 300 within thetransfer station 100 to aUAV 400 outside thetransfer station 100. Preferably, both the downwardly taperingfunnel 114 and the upwardly tapering funnel 116 are configured to guidecontainers 200 that pass therethrough to align with the orientation of thetop passage 112. Orientation of thecontainer 200 within thefunnels 114/116 may be achieved in any number of ways, including the use of specially shaped surfaces, magnets, hooks, mechanical arms, and combinations thereof. - In examples where the
transfer station 100 is a stand-alone structure, thefront passage 108 and thetop passage 112 may communicate theinner space 104 with a common outer environment. In other examples, such as when thetransfer station 100 is incorporated in another structure, thefront passage 108 may communicate theinner space 104 with an outer environment that is different from an outer environment with which thetop passage 112 communicates theinner space 104. For example, atransfer station 100 may be provided in a building, with the top passage 112 (optionally via a top hatch 110) opening to a roof of the building and the front passage 108 (optionally via a front door 106) opening to an internal space of the building. - A
UGV 300 suitable for use with thetransfer station 100 will include a holdingspace 302 dimensioned to receive acontainer 200. Preferably, the holdingspace 302 will be dimensioned to correspond with the dimensions of thecontainer 200 and/or may include protruding structures for supporting thereusable container 200. In one example, the protruding structures may serve to hold the container inside the UGV at a specific and non-flexible location; and the protruding structures may additionally have sensors on them to notify the station of the presence or absence of the container within the UGV. - In examples where the holding
space 302 is constructed with dimensions closely corresponding with the dimensions of thecontainer 200, it is preferable there be some manner for reliably positioning theUGV 300 within theinner space 104 of thehousing 102 to align the holdingspace 302 with the similarly dimensionedtop passage 112, such that acontainer 200 may easily be delivered into and taken from the holdingspace 302 without requiring a complex maneuvering of thecontainer 200. Reliable positioning of theUGV 300 within thehousing 102 may be achieved via aguiding system 118 that directs theUGV 300 to park at a position that is predetermined to align the holdingspace 302 with thetop passage 112. In this way, with theUGV 300 parked at the predetermined position, acontainer 200 may be reliably delivered to or taken from the holdingspace 302 of theUGV 300 via a simple raising or lowering motion through thetop passage 112, without requiring any lateral correction other than that provided by one of thefunnels 114/116. - A guiding
system 118 may take a variety of forms provided it functions to reliably direct aUGV 300 to the predetermined position. For example, a guidingsystem 118 may include a contoured floor surface, such as a sloped surface having tracks that lead to preset points where the wheels of theUGV 300 will come to rest, with a stopping structure at the preset points (e.g., divots or protrusions). In another example, a guidingsystem 118 may include an automated conveyor, which may attach to a portion of theUGV 300 and then pull and/or push theUGV 300 to the predetermined position. A further example of aguiding system 118 may include a localized positioning system (LPS) having a network of sensors, transmitters, and/or transceivers that determine the position of theUGV 300 within theinner space 104 and communicate positioning information to a navigation system of theUGV 300 for use in autonomously navigating theUGV 300 to the predetermined position. Asuitable guiding system 118 may also include a combination of two or more of the foregoing examples. - The upwardly tapering funnel 116 is provided below the
top passage 112, and includes a chute 120 having a lower enlarged inlet 122 and an uppercontracted outlet 124. The chute 120 is dimensioned such that the lower enlarged inlet 122 has a length and width sufficient to ensure reliable reception of acontainer 200 that is lifted vertically from a holdingspace 302 of aUGV 300 parked at the predetermined position; and such that the upper contractedoutlet 124 has a length and width that corresponds with the length and width of thetop passage 112 of thehousing 102. - The downwardly tapering
funnel 114 includes achute 126 having an upperenlarged inlet 128 and a lower contractedoutlet 130. In the example shown inFIGS. 1a-1b thechute 126 is formed in a square-shape with four sloping surfaces; though thechute 126 may be formed in any preferred shape with any number of surfaces, including a conical shape formed with a single curved surface. Thechute 126 is dimensioned such that the lower contractedoutlet 130 has a length and width that corresponds with the length and width of thetop passage 112 of thehousing 102. - In some examples, such as that shown in
FIG. 1 b, the lower contractedoutlet 130 of thechute 126 may communicate with thetop passage 112, without any intermediate structure therebetween. In other examples, such as that shown inFIGS. 2a -2 b, funnel 114 may include anintermediate channel 132 that communicates the lower contractedoutlet 130 ofchute 126 with thetop passage 112. When thetransfer station 100 is a stand-alone structure, it is preferable the upperenlarged inlet 128 have a length and width that is no larger than the length and width of thehousing 102. However, if thetransfer station 100 is incorporated in another structure, then the topenlarged inlet 128 may have any length and/or width suitable for use with the larger structure. For example, if thetransfer station 100 is provided in a building, with the top passage 112 (optionally via a top hatch 110) opening to a roof of the building, then thechute 126 may be constructed within the roof of the building and the upperenlarged inlet 128 may have a length and/or width that exceeds the length and/or width of thehousing 102. The height of thefunnel 114 may be varied as needed. - The
funnels 114 may be constructed with alternative shapes and configurations that are specially adapted for the environment in which thetransfer station 100 is to be deployed. For example, when constructing atransfer station 100 for use in an environment with snow accumulation, it may be preferable to construct thefunnel 114 to mitigate snow buildup by constructing the sides of thefunnel 114 with a plurality of openings sized to allow the passage of snow, or a series of downward angled surfaces that allow the passage of snow. Thefunnel 114 may also be constructed with deflectors or caps that deploy in inclement weather situations to inhibit the collection of snow, sleet, and/or ice within thefunnel 114. As another example, when constructing atransfer station 100 for use in an environment with ice accumulation, it may be preferable to construct the funnel 114 (and optionally the housing 102) with heating coils for melting away accumulated ice. Similarly, when constructing atransfer station 100 for use in high-heat environments, it may be preferable to construct the funnel 114 (and optionally the housing 102) with fans for providing conductive cooling and/or surface treatments that reduce heat retention. - The
funnel 114 may be mounted directly to the top of thehousing 102, in a fixed position; or may be supported movably above thehousing 102. For example, as shown inFIGS. 1b and 2 a, thefunnel 114 may be supported on atrack 134 and may include a movement system at the base thereof. With such a construction,individual transfer stations 100 a/100 b/100 c may be positioned side-by-side to construct amulti-unit transfer station 100′ as shown inFIG. 9 , with therespective tracks 134 a/134 b/134 c of eachhousing 102 a/102 b/102 c aligned and engaged such that asingle funnel 114 may move therealong to separately service each of theindividual transfer stations 100 a/100 b/100 c as needed. Thetrack 134 may be a separate structure mounted on thehousing 102, or may be constructed monolithically in thehousing 102 such as a recessed canal through which a base of thefunnel 114 may slide. -
FIGS. 1b, 2a and 9 show one example of a movement system that includeswheels 136 mounted to the base of thefunnel 114 and aligned to roll along thetrack 134. Thewheels 136 may be motorized for rotating under the power of a funnel motor provided at the base of thefunnel 114. Alternatively, thewheels 136 may be non-motorized, and a pulley system may be provided whereby one or more pulley motors at one or both sides of the housing 102 (or at one or both ends of amulti-unit transfer station 100′) are joined to thefunnel 114 by cables or chains, with thewheels 136 rotating under the force of the pulley motors. - When the
funnel 114 is supported movably above amulti-unit transfer station 100′, thefunnel 114 may be constructed with slanted surfaces at its base that act as plows during the lateral movements of thefunnel 114 to aid in the removal of debris that may have collected on the top surface of thetransfer station 100′ (e.g., built-up snow; fallen leaves; etc.). With such a construction, thetransfer station 100′ may be configured to periodically move thefunnel 114 along thetracks 134/134 b/134 c for the sole purpose of removing any potentially built-up debris. Amovable funnel 114 may also be made to have a telescopingintermediate channel 132 that communicates the lower contractedoutlet 130 of thechute 126 with atop passage 112 of ahousing 102 a/102 b/102 c. With such a construction, when thefunnel 114 is aligned with an openedtop passage 112, the telescopingintermediate channel 132 may be expanded to extend through the openedtop passage 112 to provide a fully shielded passage for transfer of acontainer 100 between thefunnel 114 and theinner space 104 of thehousing 102. - The
transfer station 100 also includes aactuator system 138 for interacting with acapture system 210 of acontainer 200 that is received in the holdingspace 302 of aUGV 300.FIGS. 7a-7e and 8a-8e show one example of aactuator system 138 that includes a number ofslats 140 positioned at thechute 126 of thefunnel 114, on or within the walls of thechute 126. In this example, theslats 140 are moveable between a retracted position (as for example inFIG. 7a ) and an extended position (as for example inFIG. 7c ) in which theslats 140 interact with acapture system 210 of acontainer 200. Preferably, when in the extended position and engaged with thecapture system 210 of acontainer 200, theslats 140 take the form of an extended funnel shape that serves to guide a load-bearing element 404 of a UAV suspension system for reception in thecapture system 210 of acontainer 200. -
FIGS. 3a and 3b show one example of areusable container 200 for carrying and transferring packages betweenUAVs 400 andUGVs 300 via thetransfer station 100. Thecontainer 200 includes ashell 202 that defines aninner space 204 for receiving one or more packages for delivery to a customer; and having one ormore flaps 206 for opening and closing theshell 202. Preferably, alock 208 is provided on theshell 202 for releasably securing the flap(s) 206. Acapture system 210 is provided on a top outer surface of theshell 202 for engaging with a suspension system of aUAV 400. Though in the example inFIGS. 3a and 3b the top outer surface of theshell 202 is one in the same with theflap 206, in other examples theflap 206 may be positioned on a surface separate from the top surface on which thecapture system 210 is provided. Thecontainer 200 may include positioning system (GPS) tracker for use in tracking thecontainer 200 along its delivery route, and a battery or other power source for powering the GPS tracker. - It is preferable the
container 200 be configured to promote a stabilized transport thereof, so as to suppress the movement of the contents within thecontainer 200 during vertical pickup and horizontal transport thereof.FIG. 3c illustrates two examples for achieving such a configuration. In both examples, the containers 200 (e.g.,containers 200 a/200 b) may be constructed with aninternal bottom surface 205 of thecontainer 200 is sloped, tapered, or otherwise downwardly funneled toward a centralized location of theinner space 204 that aligns with a central axis of thecontainer 200. In this way, there is promoted a centralized positioning of contents within theinner space 204, which is expected to both suppress movement of contents and promote a symmetrical distribution of the weight of thecontainer 200. - Stability of the containers 200 (e.g.,
containers 200 a/200 b) may be further enhanced by centralizing the point of connection between the UAV (via a UAV cable 402) and the container 200 (via a capture mechanism 210). In one example, as shown inFIG. 3c , the point of connection between aUAV 400 a and acontainer 200 a may be centralized by positioning thecapture system shell 212 at point on a top surface of thecontainer 200 a that aligns with the central axis of thecontainer 200 a. In another example, as also shown inFIG. 3c , the point of connection between aUAV 400 b and acontainer 200 b may be centralized by using acapture system 210 b that includes acapture system shell 212 that is not attached to a surface of thecontainer 200 b, but which includesretractable cables 220 that extend between thecapture system shell 212 and the top corners of thecontainer shell 202. In the example shown inFIG. 3c thecontainer 200 b is square shaped with four corners and fourcables 220; though it will be appreciated that thecontainer 200 b may have any number of corners with any number ofcorresponding cables 220. Theretractable cables 220 may be biased toward a retracted state within thecontainer 200 b, in which state the tension in thecables 220 act with equal force to bias thecapture system shell 212 toward a point on a top surface of thecontainer 200 b that aligns with the central axis of thecontainer 200 b. When thecontainer 200 b is supported by a UAV cable 402 b, theretractable cables 220 may extend under the weight of thecontainer 200 b, with thecapture system shell 212 lifting upwardly and away from the top surface of thecontainer 200 b. When extended, theretractable cables 220 equally distribute the weight of thecontainer 200 b such that the vertically displacedcapture system shell 212 remains aligned with the central axis of thecontainer 200 b. -
FIGS. 4a-4e and 5a-5f show one example of acapture system 210 for use with areusable container 200, in the form of a clamping mechanism, as well methods of delivering (FIGS. 4a-4e ) and picking-up (FIGS. 5a-5f ) acontainer 200 having such acapture system 210. Thecapture system 210 is provided on an outer surface of ashell 202 of acontainer 200 and includes acasing 212 having one ormore panels 214 for accessing acapture space 216 that is separate from aninner space 204 of thecontainer 200. Thepanels 214 are biased to a closed position (as inFIG. 4a ) by one ormore biasing elements 218. In use, acontainer 200 may be transferred between a holding bay of theUAV 400 and a holdingspace 302 of aUGV 300 via a UAV suspension system that includes an extendable andretractable cable 402 having a load-bearing element 404 at an end thereof; the load-bearing element 404 being dimensioned for reception and entrapment within thecapture space 216 of thecapture system 210 when thepanels 214 are in the closed position (as inFIG. 4a ). Non-limiting examples of biasingelements 218, for biasing thepanels 214 to the closed position, may include springs, magnets, electric motors, and combinations thereof. In some examples the biasingelements 218 may be of a purely mechanical type, such that thecapture system 210 may operate without an electrical energy supply. The load-bearing element 404 may be formed of metal, plastic, or any other material that keeps shape under pressure; with the body being a spherical shape or any other preferred shape (e.g., cube, rectangular prism, triangular prism, spiked sphere, etc.). - As shown in
FIGS. 4a -4 e, when acontainer 200 is being transferred from aUAV 400 to aUGV 300 via a transfer station 100 (a UAV drop-off transfer), after lowering thecontainer 200 into the holdingspace 302 of the UGV 300 (as inFIG. 4a ), theslats 140 of theactuator system 138 are activated to extend and press against thepanels 214 of thecapture system 210 with sufficient force to move thepanels 214 to an open position (as inFIG. 4b ). TheUAV 400 then retracts thecable 402 to remove the load-bearing element 404 from thecapture space 216 of the capture system 210 (as inFIG. 4c ), after which theslats 140 are retracted (as inFIG. 4d ) thereby allowing the biasingelements 218 to return thepanels 214 to the closed position (as inFIG. 4e ). - As shown in
FIGS. 5a -5 f, when acontainer 200 is being transferred from aUGV 300 to aUAV 400 via a transfer station 100 (a UAV pick-up transfer), after parking the UGV at the predetermined position to align the holdingspace 302 with the top passage 112 (as inFIG. 5a ), theslats 140 of theactuator system 138 are activated to extend and press against thepanels 214 of thecapture system 210 with sufficient force to move thepanels 214 to an open position (as inFIG. 5b ), and the load-bearing element 404 is then lowered into the capture space 216 (as inFIG. 5c ). Theslats 140 are then retracted (as inFIG. 5d ) thereby allowing biasingelements 218 to return thepanels 214 to the closed position, entrapping the load-bearing element 404 within the capture space 216 (as inFIG. 5e ). Thecable 402 is then retracted causing the load-bearing element 404 to abut against the inner surface of the closed panels 214 (as inFIG. 5f ), and thereby lifting thecontainer 200 from the holdingspace 302 of theUGV 300 and into the holding bay of theUAV 400. - It will be appreciated that the
capture system 210 is not limited to the example shown inFIGS. 4a-4e and 5a -5 f; and that thecapture system 210 may take any number of forms. Non-limiting example of capture systems may include a clamping mechanism such as that shown inFIGS. 4a-4e and 5a -5 f; a magnetic (or electromagnetic) mechanism, a hook mechanism, a Velcro® mechanism, or combination thereof. - The
container 200 may be made with any given dimensions, provided the holdingspace 302 of theUGV 300 and the holding bay of theUAV 400 can be constructed with corresponding dimensions for receiving thecontainer 200, and provided thetransfer station 100 may likewise be constructed with corresponding dimensions for handling thecontainer 200. - The
housing 102 may be made of any material that is weather resistant. Non-limiting examples of materials suitable for constructing thehousing 102 include metal, plastic, wood, glass, fiber glass, carbon fiber, and combinations thereof. Thefunnels 114/116 (which may include the slats 140) may be made of any of the same materials, or combinations of materials, that are suitable for thehousing 102, though with the further consideration that thefunnels 114/116 must be constructed to withstand the weight and forces incurred by the sliding of acontainer 200 therealong. Thetrack 134 may likewise be made of any of the same materials, or combinations of materials, that are suitable for thehousing 102, though with the further consideration that thetrack 134 must be constructed to withstand the weight and movement of thefunnel 114 therealong, as well as the additional weight and forces incurred when areusable container 200 passes through thefunnel 114. - The
front door 106 andtop hatch 110 may be made of any closure structure. Non-limiting examples of closure structures that may be used for thefront door 106 and/ortop hatch 110 include a single panel or object closure (e.g., a moving plate), a multiple panel or object closure (e.g., a series of hinged panels, or a series of plates or bars), and combinations thereof. The panel(s) and/or object(s) making up thefront door 106 andtop hatch 110 may be made of any material offering a suitable degree of protection and durability. In some examples, thetransfer station 100 may omit afront door 106 and/or atop hatch 110, such that the front and/ortop passages 108/112 are always in an open state. -
FIG. 6 shows one example of acontrol system 500 for atransfer station 100 according to the present invention. Thecontrol system 500 includes a central control unit (CCU) 502 that interfaces with several components to effect operation of thetransfer station 100. - A
UGV approach unit 504 may include one or more UGV approach sensors for detecting the approach of aUGV 300 relative to thetransfer station 100, and for outputting a signal to theCCU 502 indicating that aUGV 300 is approaching thetransfer station 100. Non-limiting examples of suitable UGV approach sensors may include sonar, laser, RFID, and combinations thereof. - A
UGV positioning unit 506 may include one or more UGV positioning sensors for determining both that aUGV 300 is within theinner space 104 of thehousing 102 and whether theUGV 300 is located at the predetermined position that aligns the holdingspace 302 of theUGV 300 with the top passage 112 (the top hatch 110) of thehousing 102, and for outputting a signal to theCCU 502 indicating positioning of theUGV 300 within thehousing 102, which may include positing information indicating whether theUGV 300 is entirely entered withininner space 104, whether theUGV 300 is parked at the predetermined position, and/or the localized positioning data indicating relative positioning of theUGV 300 in relation to the predetermined position. Non-limiting examples of suitable UGV positioning sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - A
UGV load unit 508 may include one or more UGV load sensors for determining whether the holdingspace 302 of aUGV 300 parked in thehousing 102 is loaded with acontainer 200, and for outputting a signal to theCCU 502 indicating load state of theUGV 300 as either empty or loaded with acontainer 200. Preferably, the UGV load sensors also detect changes in the load state of theUGV 300, and output signals to theCCU 502 indicating changes in the load state of theUGV 300 that are indicative that acontainer 200 has either been delivered to or removed from the holdingspace 302 of theUGV 300. Non-limiting examples of suitable UGV load sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, a weight sensor below the predetermined position, and combinations thereof. In some examples, the load state of theUGV 300 may be assessed by a sensor on theUGV 300 itself, and the load state of theUGV 300 may be communicated to thetransfer station 100 via the transmission of signals between a communication system of theUGV 300 and a UGV communications relay of thetransfer station 100. - A
UGV departure unit 510 may include one or more UGV departure sensors for detecting the departure of aUGV 300 fromtransfer station 100, and for outputting a signal to theCCU 502 indicating that aUGV 300 has departed thetransfer station 100. Non-limiting examples of suitable UGV departure sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, a weight sensor below the predetermined position, and combinations thereof. - A
UAV approach unit 512 may include one or more UAV approach sensors for detecting the approach of aUAV 400 relative to thetransfer station 100, and for outputting a signal to theCCU 502 indicating that aUAV 400 is approaching thetransfer station 100. Non-limiting examples of suitable UAV approach sensors may include sonar, laser, RFID, and combinations thereof. - A
UAV positioning unit 514 may include one or more UAV positioning sensors for determining whether aUAV 400 is at a sufficient vertical position above thetransfer station 100 for aligning a holding bay of theUAV 400 with the upperenlarged inlet 128 of thefunnel 114, and for outputting a signal to theCCU 502 indicating positioning of theUAV 400, which may include positing information indicating whether theUAV 400 is sufficiently positioned to align the holding bay of theUAV 400 with the upperenlarged inlet 128 of thefunnel 114, and/or localized positioning data indicating relative positioning of the holding bay of theUAV 400 in relation to the upperenlarged inlet 128 of thefunnel 114. Non-limiting examples of suitable UAV positioning sensors may include image sensors, light sensors, infrared sensors, distance sensors, and combinations thereof In one example, image sensors may continuously relay positioning information between atransfer station 100 and aUAV 300 indicating any correction needed for aligning acontainer 200 with thefunnel 114 and/or thetop passage 112. Such an image sensor may recognize key orientation points on thecontainer 200, which information may then be used to instruct theUAV 300 to rotate as needed to achieve alignment of thecontainer 200 with thefunnel 114 and/or thetop passage 112. In some examples, light, infrared, and/or distance sensors may be used to monitor vertical distance between thecontainer 200 and thetransfer station 100; and such information may be used to transmit instructions for correcting the altitude of theUAV 300 and/or thecontainer 200. - A
front door unit 516 may include one or more front door motors that receive signals from theCCU 502 for the opening and closing of thefront door 106. Thefront door unit 516 may also include one or more front door sensors that detect positioning of the front door 106 (e.g., opened, closed, or intermediate positions thereof), and/or which may detect the presence of an obstruction in the movement path of the front door 106 (e.g., a UGV, a bystander, wildlife, etc.); and which output signals to theCCU 502 indicating the positioning of thefront door 106 and/or an obstruction state of the movement path of the front door 106 (e.g., obstructed, not obstructed). Non-limiting examples of suitable front door sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - In examples where the
transfer station 100 includes aUGV guiding system 118 in the form of an automated conveyor, thecontrol system 502 may include aUGV guiding unit 518 that includes one or more guiding motors for engaging aUGV 300 and for driving the automated conveyor to move an engagedUGV 300, and which receive signals from theCCU 502 instructing engagement of aUGV 300 and/or movement of an engagedUGV 300 via the automated conveyor; and may further include one or more guiding sensors for detecting the presence of aUGV 300 within proximity for engagement by the guidingsystem 118, and for outputting signals to theCCU 502 indicating aUGV 300 is in proximity for engagement by the guidingsystem 118. Non-limiting examples of suitable guiding sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - A
top hatch unit 520 may include one or more top hatch motors that receive signals from theCCU 502 instructing opening and closing of thetop hatch 110. Thetop hatch unit 520 may also include one or more top hatch sensors that detect positioning of the top hatch 110 (e.g., opened, closed, or intermediate positions thereof), and/or which may detect the presence of an obstruction in the movement path of the top hatch 110 (e.g., a UAV suspension system, a container, an actuator mechanism, etc.); and which output signals to theCCU 502 indicating the positioning of thetop hatch 110 and/or an obstruction state of the movement path of the top hatch 110 (e.g., obstructed, not obstructed). Non-limiting examples of suitable top hatch sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - A
actuator unit 522 may include one or more actuator motors that receive signals from theCCU 502 instructing extension and retraction of theslats 140. Theactuator unit 522 may also include one or more actuator sensors that detect positioning of the slats 140 (e.g., extended, retracted, or intermediate positions thereof), and/or which may detect the presence of an obstruction in the movement path of the slats 140 (e.g., a UAV suspension system, a container, accumulated snow, etc.); and which output signals to theCCU 502 indicating the positioning of theslats 140 and/or an obstruction state of the movement path of the slats 140 (e.g., obstructed, not obstructed). Non-limiting examples of suitable actuator sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - A
capture unit 524 may include one or more capture sensors that determine whether theslats 140 of theactuator system 138 have engaged thecapture system 138 of thecontainer 200; and which output signals to theCCU 502 indicating whether theslats 140 have engaged thecapture system 138 of thecontainer 200. Non-limiting examples of suitable capture sensors may include touch sensors, pressure sensors, ultra sonic sensors, infrared sensors, contact sensors at the engaging ends of the slats, force-feedback sensors at the base ends of the slats, and combinations thereof. - A load-
bearing unit 526 may include one or more load-bearing sensors that detect the presence of a UAV load-bearing element 404 within thecapture space 216 of thecapture system 210 of acontainer 200; and which output signals to theCCU 502 indicating the presence or absence of a load-bearing element 404 within thecapture space 216. Non-limiting examples of suitable load-bearing sensors may include light sensors or infrared sensors on the slats detecting the passing of the load-bearing element 404 within the capture space, proximity sensors at the engaging ends of theslats 140, an RFID sensor at the engaging ends of theslats 140 for communicating with an RFID tag in the load-bearing element 404, and combinations thereof. - In examples where the
funnel 114 is mounted movably on atrack 134, such as when thetransfer station 100 is part of amulti-unit transfer station 100′ (as inFIG. 9 ), thecontrol system 500 may include afunnel position unit 528. Afunnel position unit 528 may include one or more funnel position motors that receive signals from theCCU 502 instructing movement of thefunnel 114 along thetrack 134 at the top of thehousing 102. Thefunnel position unit 528 may also include one or more funnel position sensors that detect positioning of thefunnel 114, including whether thefunnel 114 is positioned to align the lower contractedoutlet 130 with the top passage 112 (top hatch 110) of thehousing 102, and/or which may detect the presence of an obstruction in the movement path of thefunnel 114 along the track 134 (e.g., accumulated snow, etc.); and which output signals to theCCU 502 indicating the positioning of thefunnel 114 and/or an obstruction state of the movement path of the slats 140 (e.g., obstructed, not obstructed). Non-limiting examples of suitable funnel position sensors may include touch sensors, light sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - In examples where the
funnel 114 includes a telescopingintermediate channel 132, thecontrol system 500 may include atelescoping channel unit 530. Atelescoping channel unit 530 may include one or more telescoping channel motors that receive signals from theCCU 502 instructing extension and retraction of thetelescoping channel 132. Thetelescoping channel unit 530 may also include one or more telescoping channel sensors that detect positioning of the telescoping channel 132 (e.g., fully extended, fully retracted, and/or intermediate positions thereof), and/or which may detect the presence of an obstruction in the movement path of the telescoping channel 132 (e.g., a closed top hatch, etc.); and which output signals to theCCU 502 indicating the positioning of thetelescoping channel 132 and/or an obstruction state of the movement path of the telescoping channel 132 (e.g., obstructed, not obstructed). Non-limiting examples of suitable telescoping channel sensors may include touch sensors, distance sensors, pressure sensors, ultra sonic sensors, infrared sensors, and combinations thereof. - A
communications unit 600 may include a UGV communications relay 602 that establishes communications between theCCU 502 andUGVs 300 in proximity of thetransfer station 100; a UAV communications relay 604 that establishes communications between theCCU 502 andUAVs 400 in proximity of thetransfer station 100; a station communications relay 606 that establishes communications between theCCU 502 and othernearby transfer stations 100 b/100 c; and/or a delivery server communications relay that establishes communications between theCCU 502 and a delivery server. - A UGV communications relay 602 may transmit data between the
CCU 502 and one or morenearby UGVs 300 conveying load states of the UGVs 300 (e.g., available to receive acontainer 200, and/or available to give a container 200); delivery statuses of the UGVs 300 (e.g., seeking a UAV drop-off transfer or a UAV pick-up transfer); and/or positional data informing the relative positions of the UGVs 300 (e.g., as being within theinner space 104; as being parked at the predetermined position within theinner space 104; and/or localized positioning data indicating relative positioning of theUGV 300 in relation to the predetermined position). - A UAV communications relay 604 may transmit data between the
CCU 502 and one or morenearby UAVs 400 conveying load states of the UAVs 300 (e.g., available to receive acontainer 200, and/or available to give a container 200); delivery statuses of the UAVs 400 (e.g., seeking a UAV drop-off transfer or a UAV pick-up transfer); and/or positional data informing the relative positions of the UAVs 400 (e.g., as being sufficiently positioned to align the holding bay of theUAV 400 with the upperenlarged inlet 128 of thefunnel 114; and/or localized positioning data indicating relative positioning of the holding bay of theUAV 400 in relation to the upperenlarged inlet 128 of the funnel 114). - A station communications relay 606 may transmit data between the
CCU 502 and one or morenearby transfer stations 100 b/100 c for conveying a status of the transfer stations (e.g., whether aUGV 300 is housed therein; a load state of aUGV 300 housed therein; etc.). In examples where thetransfer station 100 is oneunit 100 a in amulti-unit transfer station 100′, the station communications relay 606 may transmit data between theCCU 502 and the central control units of the one ormore transfer stations 100 b/100 c for coordinating movement of a sharedfunnel 114 along the alignedtracks 134 a/134 b/134 c. - In some examples the
transfer station 100 may be part of a larger delivery network in which one or more delivery servers may oversee the delivery operations within a given geographical region by, for example, managing the driving routes ofUGVs 300, the flight routes ofUAVs 400, and the loading and transferring schedules oftransfer stations 100 within a given region. In such an example, a delivery server communications relay 608 may transmit data between theCCU 502 and one or more delivery servers to update the status of thetransfer station 100 with the one or more delivery servers (e.g., whether aUGV 300 is housed therein; the load state of aUGV 300 housed therein; whether areplacement container 200 is needed for delivery to aUGV 300 housed therein). - A
power supply unit 700 for powering thecontrol system 500 may include a local power source 702 (e.g., a replaceable and/or rechargeable battery; a fuel-based power source; etc.) that powers theCCU 502 as well as any other components of thecontrol system 500 that require electrical power to operate. Optionally, thepower supply unit 700 may communicate with one or moreexternal power sources 704 for charging thelocal power source 702. Non-limiting examples ofexternal power sources 704 may include solar panels, wind turbines, hydro turbines, kinetic energy transducers (e.g., for vibration energy conversion), electrical energy grids, fossil-fuel power sources, and combinations thereof. The transfer station may be constructed in any suitable place for making use of the chosen power source—e.g., at an area of unobstructed sunlight for extracting solar energy; at an area of prominent wind flow for extracting wind energy from wind turbines; near a waterway to extract hydro energy from hydroelectric turbines; etc. - A
power transfer unit 706 may be provided for establishing an electrical communication for transferring electrical energy between thepower supply unit 700 and an on-board power source of aUGV 300 such that thelocal power source 702 may charge the on-board power source of theUGV 300. In some examples, thepower transfer unit 706 may permit theUGV 300 to recharge thelocal power source 702 as a back-up redundancy to one or moreexternal power sources 704 that serve as the primary power delivery of electrical power for thelocal power source 702. Preferably, thepower transfer unit 706 takes the form of a pair of mating electrical connections, with one connection provided at thetransfer station 100 and the other mating connection provided onUGVs 300. Non-limiting examples of mating electrical connections that may be included in thepower transfer unit 706 include one or more mating electrical sockets and plugs, one or more mating electrical plates and slip brushes, one or more mating electrical power lines and slip surfaces, and combinations thereof. - In some examples the
power transfer unit 706 may be exposed for engagement by aUGV 300 without any advance electrical power requirement by the transfer station, and the power source of the UGV 300 (upon engaging the power transfer unit 706) may then serve as the sole power source for operation of thetransfer station 100, without requiring alocal power source 702 within thehousing 102. For example, thetransfer station 100 may be constructed without anyfront door 106, such that aUGV 300 may navigate into theinner space 104 and engage thepower transfer unit 706. In another example, thepower transfer unit 706 may take the form of a power receiving structure that extends between a point outside of thetransfer station 100, ahead of thefront door 106, to a point in theinner space 104 of the transfer station housing 102 (e.g., an overhead electrical wire; an underside electrical rail or plate; etc.) , and theUGV 300 may have a power conveying structure (e.g., an overhead electrical bar or surface; a underside electrical slip brush; etc.) that engages the power receiving structure at a location external of thepower transfer station 100, such that theUGV 300 may engage thepower transfer unit 706 to deliver operational power upon approaching thetransfer station 100. - The local power source 702 (or a UGV power source engaged with a power transfer unit 706) may deliver electrical power to the
CCU 502, and the several further components of thecontrol system 500, via one or more electrical lines. In examples where thetransfer station 100 includes amoveable funnel 114 mounted on atrack 134 atop thehousing 102, such as when thetransfer station 100 is part of amulti-unit transfer station 100′, thetrack 134 may be constructed to transfer electrical power to any components located on the movable funnel 114 (e.g., funnel motors, sensors, and/or receivers; actuator motors, sensors and/or receivers; etc.) via an electrical connection between thetrack 134 and themovable funnel 114. For example, thetrack 134 may include an electrical rail and themovable funnel 114 may include one or more electrical slip brushes that establish an electrical connection with the electrical rail. - It will be appreciated that the
control system 500 shown inFIG. 6 is one example of acontrol system 500 that may be used with the present invention, and that asuitable control system 500 for use with the invention may have a number of variations. - In some
control systems 500, multiple individual units may be replaced by a single unit that performs all the functions of the single unit. For example, there may be provided a single UGV coordination unit that is capable of precisely monitoring the location and positioning of aUGV 300 so as to perform the functions of each of theUGV approach unit 504, theUGV positioning unit 506, and theUGV departure unit 510. Similarly, there may be provided a single UAV coordination unit that is capable of precisely monitoring the location and positioning of aUAV 400 so as to perform the functions of each of theUAV approach unit 512 and theUAV positioning unit 514. - In some
control systems 500, a single communications relay may be capable of transmitting sufficiently detailed data from an outside source (e.g., a delivery server; a global positioning system; etc.) such that the data provided by the single communication relay permits the omission of one or more units. For example, if the UGV communications relay 602 is capable of transmitting sufficiently detailed positioning information and/or load information from an internal system of aUGV 300 itself then acontrol system 500 may omit theUGV approach unit 504, theUGV positioning unit 506, theUGV load unit 508, and theUGV departure unit 510. Similarly, if the UAV communications relay 604 is capable of transmitting sufficiently detailed positioning information and/or load information from an internal system of aUAV 400 itself then acontrol system 500 may omit theUAV approach unit 512 and theUAV positioning unit 514. - In operation, a
transfer station 100 according to the present invention may be used to transferreusable containers 200 fromUAVs 400 to UGVs 300 (UAV drop-off transfers), and to transferreusable containers 200 fromUGVs 300 to UAVs 400 (UAV pick-up transfers). Such transfers may be managed by one or more delivery servers. - Upon determining that a given
transfer station 100 is empty, a delivery server will output a signal instructing aUGV 300 to travel to and enter thetransfer station 100. Upon detecting theUGV 300 within a predetermined proximity of thetransfer station 100, theUGV approach unit 504 outputs a signal to theCCU 502, and theCCU 502 then outputs a signal instructing thefront door unit 516 to open thefront door 106. Once theUGV positioning unit 506 determines theUGV 300 has fully entered theinner space 104 of thetransfer station housing 102, and outputs a signal to the -
CCU 502 indicating the same, theCCU 502 then outputs a signal instructing thefront door unit 516 to close thefront door 106. - When entering the
inner space 104, the guidingsystem 118 will guide theUGV 300 to the predetermined position for aligning the holdingspace 302 of theUGV 300 with the top passage 112 (the top hatch 110) of thehousing 102. In examples where thetransfer station 100 includes an automated guiding system 118 (e.g., an automated conveyor), a guidingunit 518 may output a signal to theCCU 502 when there is detected the presence of theUGV 300 within proximity for engagement by the guidingsystem 118; and theCCU 502 may then output signals to the guidingunit 518 instructing the engagement of theUGV 300 and driving of the UGV to the predetermined position. Once theUGV positioning unit 506 determines theUGV 300 is at the predetermined position, theUGV positioning unit 506 will output a signal to theCCU 502 confirming the same. - The
UGV load unit 508 determines the load state of theUGV 300, and outputs a signal to theCCU 502 indicating whether areusable container 200 is present in the holdingspace 302 of theUGV 300. TheCCU 502 then outputs a signal to thecommunications unit 600 instructing the delivery server communications relay 608 to contact one or more delivery servers to update the status of thetransfer station 100 as housing aUGV 300, and further indicating the load state of theUGV 300. - When a delivery server determines that a
transfer station 100 is housing aUGV 300 that is available to receive areusable container 200, the delivery server outputs a signal instructing a container-carryingUAV 400 to travel to thetransfer station 100 to transfer thecontainer 200 to the UGV 300 (i.e., perform a UAV drop-off transfer).FIGS. 4a-4e and 7a-7e show one example of the operations that may be performed in a UAV drop-off transfer. - Upon detecting the
UAV 400 within a predetermined proximity of thetransfer station 100, theUAV approach unit 512 outputs a signal to theCCU 502 indicating approach of theUAV 400. If thetransfer station 100 is provided as one unit within amulti-unit transport station 100′, then following reception of the signal indicating approach of aUAV 400, theCCU 502 will output a signal to thefunnel positioning unit 528 instructing thefunnel 114 to move along thetracks 134 a/134 b/134 c of themulti-unit transfer station 100′ to align with the top hatch 110 a of theindividual transfer station 100 a in which the container-carryingUGV 300 is parked. Depending on the movement system employed by thefunnel positioning unit 528, theCCU 502 may also communicate with theother transfer stations 100 b/100 c in themulti-unit transfer station 100′, via thestation communications relay 606, to coordinate movement of thefunnel 114. Once thefunnel 114 is aligned with the top hatch 110 a, thefunnel positioning unit 528 will output a signal to theCCU 502 confirming funnel alignment. - Upon arriving vertically above the
transfer station 100, theUAV 400 may output a signal to theCCU 502, via the UAV communications relay 602, indicating theUAV 400 is above thetransfer station 100. At this time, aUAV positioning unit 514 may determine whether theUAV 400 is positioned at an appropriate vertical position above thetransfer station 100 to align a holding bay of theUAV 400 with the upperenlarged inlet 128 of thefunnel 114, and output a signal to theCCU 502 indicating whether theUAV 400 is positioned in such vertical alignment with thefunnel 114. If it is determined that theUAV 400 is not positioned to so vertically align with thefunnel 114, then theCCU 502 may coordinate with theUAV 400 via the UAV communications relay 602 to assist theUAV 400 in navigating to a proper position for such alignment while theUAV positioning unit 514 continues to monitor the positioning of theUAV 400 and updating theCCU 502 as to whether theUAV 400 is positioned to so align with thefunnel 114. - Upon confirming the
UAV 400 is positioned to align a holding bay of theUAV 400 with the upperenlarged inlet 128 of thefunnel 114, theCCU 502 then outputs a signal to thetop hatch unit 520 instructing opening of thetop hatch 110. In some examples theUGV 300 may include a holding hatch that encloses the holdingspace 302; and in such instances theCCU 502, upon instructing the opening of thetop hatch 110 of thehousing 102, will also instruct the UGV communications relay 604 to output a signal to theUGV 300 to open the holding hatch to expose the holdingspace 302. In examples where thefunnel 114 includes a telescopingintermediate channel 132, theCCU 502 also outputs a signal to thetelescoping channel unit 530 instructing extension of thetelescoping channel 132 through the openedtop passage 112. - The
CCU 502 then instructs the UAV communications relay 602 to output a signal to theUAV 400 indicating that thetop hatch 110 is open (as inFIG. 7a ). TheUAV 400 then activates a suspension system to lower thecable 402 supporting a reusable container 200 (as inFIG. 7b ); thecontainer 200 being supported on thecable 402 by entrapment of a load-bearing element 404 at the end of thecable 402 within acapture system 210 of the container 200 (as inFIG. 4a ). As thecable 402 is lowered, thecontainer 200 enters into the downwardly taperedfunnel 114 through the upperenlarged inlet 128 and is guided through thechute 126 and out the lower contactedoutlet 130, such that thecontainer 200 is aligned both for entry through the openedtop passage 112 of thehousing 102 and reception within the holdingspace 302 of theUGV 300 parked in the transfer station 100 (as inFIG. 7b ). - Upon determining that there has been a change in the load state of the
UGV 300, theUGV load unit 508 outputs a signal to theCCU 502 indicating that thecontainer 200 has been received within the holdingspace 302 of theUGV 300. TheCCU 502 then outputs a signal to theactuator unit 522 instructing extension of theslats 140 of theactuator system 138 to open thecapture system 210 of the container 200 (as inFIGS. 7c ). Once thecapture unit 524 determines theslats 140 have properly engaged with thecapture system 210, thecapture unit 524 then outputs a signal to theCCU 502 indicating that thecapture system 210 is in an open state (as inFIG. 4b ). TheCCU 502 then outputs a signal directing the UAV communications relay 602 to instruct theUAV 400 to retract the cable 402 (as inFIG. 7d ), thereby removing the load-bearing element 404 from thecapture system 210 of the container 200 (as inFIG. 4c ). Upon determining the load-bearing element 404 has been removed from thecapture space 216, the load-bearing unit 526 outputs a signal to theCCU 502 indicting the same, and theCCU 502 then outputs a signal instructing theactuator unit 522 to retract the slats 140 (as inFIGS. 7e and 4d ), thereby allowing thecapture system 210 of thecontainer 200 to return to a closed position (as inFIG. 4e ). - In examples where the
funnel 114 includes a telescopingintermediate channel 132, theCCU 502 next outputs a signal to thetelescoping channel unit 530 instructing retraction of thetelescoping channel 132 from the openedtop passage 112. TheCCU 502 then outputs a signal instructing thetop hatch unit 520 to close thetop hatch 110. TheCCU 502 may then output a signal directing the delivery server communications relay 608 to contact one or more delivery servers to update the load state of both theUGV 300 parked in thetransfer station 100 and theUAV 400. - When a delivery server determines a
transfer station 100 is housing a container-carryingUGV 300, the delivery server outputs a signal instructing aUAV 400 that is available to receive acontainer 200 to travel to thetransfer station 100 to pick-up the reusable container 200 (i.e., perform a UAV pick-up transfer).FIGS. 5a-5f and 8a-8e show one example of the operations that may be performed in a UAV pick-off transfer. - Detection of the approaching
UAV 400, optional movement of afunnel 114 in amulti-unit transfer station 100′, and confirmation of alignment between a holding bay of theUAV 400 and thefunnel 114 of the transfer station proceed in the same manner here as during a UAV drop-off transfer; and so a discussion is not repeated here. - Upon confirming the
UAV 400 is positioned to align a holding bay of theUAV 400 with the upperenlarged inlet 128 of thefunnel 114, theCCU 502 then outputs a signal to thetop hatch unit 520 instructing opening of the top hatch 110 (as inFIG. 8a ). In examples where theUGV 300 includes a holding hatch enclosing the holdingspace 302, theCCU 502 will also instructs the UGV communications relay 604 to output a signal to theUGV 300 to open the holding hatch to expose the holdingspace 302. In examples where thefunnel 114 includes a telescopingintermediate channel 132, theCCU 502 also outputs a signal to thetelescoping channel unit 530 instructing extension of thetelescoping channel 132 through the openedtop passage 112. - The
CCU 502 then outputs a signal to theactuator unit 522 instructing extension of theslats 140 of theactuator system 138 to engage and open thecapture system 210 of the container 200 (as inFIG. 8b ). Once thecapture unit 524 determines theslats 140 have properly engaged with thecapture system 210, thecapture unit 524 then outputs a signal to theCCU 502 indicating thecapture system 210 is in an open state (as inFIG. 5b ). TheCCU 502 then outputs a signal directing the UAV communications relay 602 to instruct theUAV 400 that thecontainer 200 is available for pick-up. - Upon receiving a signal indicating the
container 200 is available for pick-up, theUAV 400 activates the suspension system to lower thecable 402 having the load-bearing element 404 into the downwardly tapered funnel 114 (as inFIG. 8c ). Thefunnel 114, together with the extended funnel shape formed form theextended slats 140, guides the load-bearing element 404 into thecapture space 216 of thecapture system 210 on the container 200 (as inFIG. 5c ). Upon determining that the load-bearing element 404 has been received in thecapture space 216, the load-bearing element 526 outputs a signal to theCCU 502 confirming the same, and theCCU 502 outputs a signal instructing theactuator unit 522 to retract the slats 140 (as inFIGS. 8d and 5d ), thereby allowing thecapture system 210 of to return to a closed position with the load-bearing element 404 entrapped therein (as inFIG. 5e ). - Once the
slats 140 are fully retracted, theactuator unit 522 outputs a signal to theCCU 502 confirming the same, and theCCU 502 then outputs a signal directing the UAV communications relay 602 to instruct theUAV 400 that thecontainer 200 is ready for removal. TheUAV 400 then retracts thecable 402 thereby raising thecontainer 200 that is supported thereon by entrapment of the load-bearing element 404 within thecapture system 210. As thecable 402 is raised, thecontainer 200 enters into the upwardly tapered funnel 116 through the lower enlarged inlet 122 and is guided through the chute 120 and out the upper contactedoutlet 124, such that thecontainer 200 is aligned both for exiting thehousing 102 through the opened top passage 112 (as inFIG. 8e ). Upon determining there has been a change in the load state of theUGV 300, theUGV load unit 508 outputs a signal to theCCU 502 indicating thecontainer 200 has been removed from the holdingspace 302 of theUGV 300. - In examples where the
funnel 114 includes a telescopingintermediate channel 132, theCCU 502 next outputs a signal to thetelescoping channel unit 530 instructing retraction of thetelescoping channel 132 from the openedtop passage 112. TheCCU 502 then outputs a signal instructing thetop hatch unit 520 to close thetop hatch 110. TheCCU 502 may then output a signal directing the delivery server communications relay 608 to contact one or more delivery servers to update the load state of both theUGV 300 parked in thetransfer station 100 and theUAV 400. - Upon determining that a given
transfer station 100 has aUGV 300 parked therein, and upon assessing the load state of theUGV 300 and any delivery requests for aUGV 300, a delivery server may output a signal instructing theUGV 300 to depart thetransfer station 100. For example, if thetransfer station 100 is housing aUGV 300 that is determined to have one ormore containers 200 that requiring ground delivery, then the delivery server may instruct theUGV 300 to depart thetransfer station 100 to complete ground delivery of the one ormore containers 200. Alternatively, if thetransfer station 100 is housing aUGV 300 that is determined to be in need of areusable container 200, and if the delivery server has received a request from a sender for ground pick-up of acontainer 200 for delivery, then the delivery server may instruct theUGV 300 to depart thetransfer station 100 for ground retrieval of thecontainer 200. - When instructing the departure of a
UGV 300 from atransfer station 100, a delivery server will also communicate with thetransfer station 100 via the delivery server communications relay 608 to instruct departure of theUGV 300. Upon receiving instructions that aUGV 300 is to depart thetransfer station 100, theCCU 502 will output a signal instructing thefront door unit 516 to open thefront door 106. TheUGV 300 may depart thehousing 102 under its own power; though in examples where thetransfer station 100 includes an automated guiding system 118 (e.g., an automated conveyor), departure of theUGV 300 may be effected in whole or in part by the guidingsystem 118. In examples where thetransfer station 100 includes an automated guiding system 118 (e.g., an automated conveyor), theCCU 502 will output signals to the guidingunit 518 instructing driving theUGV 300 to exit thehousing 102 and instructing disengagement of theUGV 300 upon reaching an exit position of the guiding system. - Once the
UGV departure unit 510 determines theUGV 300 has fully exited thehousing 102, theUGV departure unit 510 will output a signal to theCCU 502 indicating the same; and theCCU 502 will then output a signal instructing thefront door unit 516 to close thefront door 110. TheCCU 502 may then output a signal directing the delivery server communications relay 608 to contact one or more the delivery servers to update the status of thetransfer station 100 to indicate theUGV 300 has exited and/or that thetransfer station 100 is empty. - A transfer station such as that described herein enables a point-to-point delivery system and method whereby packages may be delivered directly to a final destination via the combined operation of one or more UAVs in traversing one or more portions of the delivery route by air, and one or more UGVs in traversing one or more other portions of the delivery route by ground. In this way, whereas a UGV may be used to deliver a package to a final destination, it is possible to complete a fully automated point-to-point delivery of a package while avoiding concerns that might prove problematic in attempting to flying a UAV to the final destination. Also, because the transfer station enables transfer of packages from a UAV to a UGV while the UAV remains in flight, there is no need for the UAV to land at any point during delivery, and it possible for the UAV to remain out of public ground space.
- Transfer stations such as that described herein may be installed at various locations to establish a delivery grid around a city or geographical region to be serviced. The transfer stations may located exclusively outside populated areas of the city or region to be served; or they may be located within populated areas, though at designated locations that are deemed to present minimal to no interference with the local population (e.g., sidewalks, parking lots, building roofs, or any open areas with sufficient clearance). By establishing such delivery grids at separate cities or regions, there may then be created a large scale delivery network for long distance transportation of packages where UAVs may be used to traverse longer portions of the delivery route and UGVs may be used to complete shorter portions of the delivery route (such as the last one-thousand or so feet of a delivery route). In some instances the transfer station may be provided on the local premises or property of a business or government. This may allow businesses or governments to benefit from quick and efficient deliveries via a fully automated system. However, transfer stations such as that described herein may also be used simply at entertainment venues or events such as: amusement parks, carnivals, sport events, cruises, concerts, large weddings or private functions to facilitate the transfer of items or packages to attendees or guests.
- A transfer station, or a delivery system including such transfer stations, may be used for business-to-business deliveries, business-to-consumer deliveries, and consumer-to-consumer deliveries. A delivery system according to the present invention may also be operable with a software application that can be downloaded to remote systems having a user-interface. In this way, companies may download the application for use in delivering packages from warehouses or stores directly to customers; and individuals may download the application for use in sending private, non-retail packages directly to one-another.
- In operation, a reusable container may need to be provided to a transfer station after a UAV has taken a package-carrying container away from a UGV parked therein. This may be accomplished by having another UAV deliver an empty container to the UGV—and this may be performed by UAVs between delivery tasks, by UAVs that are specially tasked solely with replacing containers.
- Although the present invention is described with reference to particular embodiments, it will be understood to those skilled in the art that the foregoing disclosure addresses exemplary embodiments only; that the scope of the invention is not limited to the disclosed embodiments; and that the scope of the invention may encompass additional embodiments embracing various changes and modifications relative to the examples disclosed herein without departing from the scope of the invention as defined in the appended claims and equivalents thereto.
- It will be appreciated that a transfer station according to the present invention is scalable, and may be made to any suitable dimensions for accommodating UGVs and containers of many various sizes and shapes; and that a transfer station may also be made to have any number of top passages (with or without top hatches) and corresponding funnels for facilitating transfer of containers with
- UGVs having any number of holding spaces. It will also be appreciated that a transfer station according to the present invention may be made with both a front door and a back door, so as to enable a drive-through type delivery to a UGV—which may include sequentially delivering multiple packages to a single UGV that has multiple holding spaces along its length.
- It will be appreciated that a transfer station according to the present invent may be constructed as a grounded structure, or may be supported on another foundation or structure as needed. For example, a transfer station may be supported on a raises structure (e.g., stilts) to protect it from potential flooding. A transfer station may have multiple rows of single car stations that may house UGVs for charging, cleaning and informational updates. Multiple stations may be aggregated on top of one another, side-by-side, or under landscape elements such as planter boxes or even bleachers for public seating; and may be built into the landscape in many variations.
- A transfer station according to the present invention may also be constructed with a movement mechanism (e.g., a set of wheels) that may enable autonomous driving of the transfer station itself, for movement of the station between different locales. In this way, if demand in a certain area was high during certain times of the day then a nearby station that is not in use may relocate to the area of high demand to assist in the increased demand at that area.
- Though the foregoing examples describe the transfer station and methods in the context of package delivery services, it will be understood that this is but one non-limiting example of the invention and its use; and that the invention may be put to use for other purposes. For example, a transfer station according to the present invention may be used to transfer: trash containers relative to UGVs that operate as trash collecting and street sweeping vehicles; snow, leaf or compost containers relative to UGV's that operate as snow, leaf or compost removal vehicles; refill containers relative to UGVs that operate to refill autonomous dispensing machines (e.g., vending machines; automatic teller machines; etc.); and animal transfer containers relative to UGV's that operate to trap and capture wildlife.
- It will also be appreciated that a transfer station according to the present invention may use an actuator system that uses a mechanism other than the flaps discussed herein. For example, a transfer station according to the present invention may use an actuator system that includes an arm that extends outward, inward, downward and/or upward and which has the shape of a small funnel for connecting to lower portion of the downwardly tapering, and which has a diameter corresponding with outer dimensions of the UAV load-bearing element. The arm could be limited to a single movement direction, provided it is able to interact with the capture system of the container for guiding the load-bearing element into the capture system for pick-ups and ejecting the load-bearing element from the capture system for drop-offs.
- It will also be appreciated that a transfer station according to the present invention may include one or more safety systems, including caution lights or other signaling systems that activate when the transfer station is interacting with a UAV and/or a UGV for alerting bystanders; as well as one or more cameras or other monitoring systems for observing and/or recording operation of the transfer station; and one or more shut-down systems for terminating operation of the transfer station if there is detected a failure or emergency during operation thereof.
- While the disclosed methods may be performed by executing all of the disclosed steps in the precise order disclosed, without any intermediate steps therebetween, those skilled in the art will appreciate that the methods may also be performed: with further steps interposed between the disclosed steps; with the disclosed steps performed in an order other than the exact order disclosed; with one or more disclosed steps performed simultaneously; and with one or more disclosed steps omitted.
- The present invention is not limited to the exemplary embodiments illustrated herein, but is instead characterized by the appended claims.
Claims (21)
1-18. (canceled)
19. An transfer station for transferring containers via unmanned vehicles, comprising:
a housing comprising an inner space;
a communications unit configured to send and/or receive communications signals; and
a control unit configured to:
control the communications unit to send and/or receive communications signals to:
coordinate reception of a container into the inner space of the housing from an unmanned vehicle, and
coordinate removal of a container from the inner space of the housing by an unmanned vehicle.
20. The transfer station according to claim 19 , wherein
the housing comprises a first passage and a second passage, and
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate reception of a container into the inner space of the housing through the first passage from a first unmanned vehicle, and
coordinate removal of the container from the inner space of the housing through the second passage by a second unmanned vehicle.
21. The transfer station according to claim 20 , wherein
the housing is incorporated within a separate structure,
the first passage is an opening between the inner space of the housing and a first environment,
the second passage is an opening between the inner space of the housing and a second environment, and
the second environment is different from the first environment.
22. The transfer station according to claim 21 , wherein
the first passage opens to an environment outside the separate structure, and
the second passage opens to an environment within the separate structure.
23. The transfer station according to claim 22 , wherein
the separate structure is a building,
the first passage opens to a roof of the building, and
the second passage opens to an internal space of the building.
24. The transfer station according to claim 20 , wherein
the first passage is an upper passage on an upper surface of the housing, and
the second passage is a side passage on a side surface of the housing.
25. The transfer station according to claim 24 , wherein
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate positioning of a UGV having an empty holding space to enter the inner space of the housing through the side passage and align the holding space of the UGV within the inner space of the housing for reception of a container,
coordinate positioning of a container-loaded UAV to align a transport system of the UAV with the upper passage of the housing for insertion of the container into the inner space of the housing through the upper passage, and
instruct the UAV to lower the transport system to lower the container from the UAV, through the upper passage of the housing, and into the holding space of the UGV.
26. The transfer station according to claim 25 , wherein
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate positioning of the UGV having the empty holding space to fully enter the inner space of the housing through the side passage.
27. The transfer station according to claim 25 , wherein
the housing further comprises a UGV load unit configured to detect a load state of a UGV, an actuator system configured to disengage the container from the UAV transport system, and one or more engagement sensors configured to detect an engagement state between the UAV transport system and the container, and
the control unit is configured to:
detect a load state of the holding space of the UGV by the UGV load unit, and
after determining the holding space of the UGV is loaded with the container lowered from the UAV, instruct the actuator system to disengage the container from the UAV transport system.
28. The transfer station according to claim 27 , wherein
the one or more engagement sensors comprises one or more actuator sensors and/or one or more load-bearing sensors.
29. The transfer station according to claim 24 , wherein
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate positioning of a container-loaded UGV to enter the inner space of the housing through the side passage and align a holding space of the UGV that is loaded with the container within the inner space of the housing for removal of the container,
coordinate positioning of a UAV with capacity for receiving a container to align a transport system of the UAV with the upper passage of the housing for removal of a container from the inner space of the housing through the upper passage,
instruct the UAV to lower the transport system through the upper passage of the housing to engage the container in the holding space of the UGV, and
instruct the UAV raise the transport system to raise the container from the UGV holding space and out from the inner space of the housing through the upper passage of the housing.
30. The transfer station according to claim 29 , wherein
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate positioning of the UGV having the container-loaded holding space to fully enter the inner space of the housing through the side passage.
31. The transfer station according to claim 29 , wherein
the housing further comprises a UGV load unit configured to detect a load state of a UGV, an actuator system configured to engage the container with the UAV transport system, and one or more engagement sensors configured to detect an engagement state between the UAV transport system and the container, and
the control unit is configured to:
instruct the actuator system to engage the container with the AV transport system,
after determining that the container is engaged with the UAV transport system by the one or more engagement sensors, instruct the UAV to raise the transport system to remove the container from the holding space of the UGV, and from the inner space of the housing, through the upper passage of the housing,
32. The transfer station according to claim 31 , wherein
the one or more engagement sensors comprises one or more actuator sensors and/or one or more load-hearing sensors.
33. The transfer station according to claim 20 , wherein
the first unmanned vehicle is a UAV or a UGV, and
the second unmanned vehicle is a UGV or a UAV.
34. The transfer station according to claim 19 , wherein
the housing comprises an upper passage in an upper surface of the housing, and
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate positioning of a UAV to align a transport system of the UAV with the upper passage of the housing for passing a container through the upper passage of the housing.
35. The transfer station according to claim 19 , wherein
the housing comprises a side passage in a side surface of the housing, and
the control unit is configured to:
control the communications unit to send and/or receive communications signals to:
coordinate movement of a UGV for entry of a holding space of the UGV into the inner space of the housing through the side passage for passing a container through the side passage.
36. The transfer station according to claim 19 , wherein
the communications unit comprises one or more communications relays configured to send and/or receive communications signals directly with unmanned vehicles for coordinating reception and removal of containers at the transfer station.
37. A delivery network comprising:
the transfer station according to claim 19 ;
a delivery server; and
a number of unmanned vehicles, wherein
the communications unit of the transfer station comprises a delivery server communications relay configured to send and/or receive communications signals with the delivery server for coordinating reception and removal of containers at the transfer station.
38. The delivery network according to claim 37 , wherein
the number of unmanned vehicles comprises a number of UAVs and a number of UGVs, and
the delivery server comprises a communications system for communicating with the transfer station and the number of unmanned vehicles to coordinate a point-to-point delivery of a container in which the container traverses a portion of the delivery route via a UAV and traverses another portion of the delivery route via a UGV.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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