JP6181446B2 - Elevator system - Google Patents

Description

  The present invention relates to an elevator system, and more particularly to an elevator system capable of calling and registering with a user who is remote from a car.

  An example of a conventional elevator system is disclosed in Patent Document 1. In the elevator system described in this publication, the position of a user is grasped by a mobile phone with a GPS function, and when the user is approaching the hall landing to get on the car, the mobile phone → the wireless network → the building Mobile phone information is transmitted along the route from the internal network to the elevator controller. Mobile phone information includes ID information stored in the mobile phone, elevator usage floor (destination floor information), personal usage status information such as usage time, etc. I am trying to register.

  Another example of a conventional elevator is disclosed in Patent Document 2. In the elevator control system described in this publication, the reception intensity is switched so that reception is possible in at least two different communication areas depending on the distance from the elevator, and ID information is received from the passenger's personal information terminal in each area. have. The control system further includes a passenger detection unit that detects the position and movement information of the passenger carrying the personal information terminal based on the ID information received by the receiving device, and a preliminary registration that performs car call registration based on the position and movement information. And a car control unit for controlling the operation of the elevator according to the car call registration.

JP 2005-280906 A JP 2003-226473 A

  In the elevator system described in Patent Document 1, the position of the user is grasped using a GPS function mounted on a mobile phone. For this reason, in areas where radio waves from satellites such as the valleys of buildings and indoors of buildings are difficult to reach, GPS does not function accurately, making it difficult to grasp the position of the user.

  Moreover, in the elevator control system described in Patent Document 2, the receiver provided on the elevator side determines the intensity of the radio wave transmitted from the user's portable terminal. The portable terminal constantly maintains a constant power, that is, the received signal strength while transmitting radio waves, and matches the preset received signal strength and the zone associated with the distance. Therefore, it is necessary to standardize and unify transmission performance in all portable terminals. In addition, since a constant strength radio wave is always transmitted, the battery is consumed quickly.

  The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to perform call registration and cancellation with an elevator user who is remote from the car, even in places where GPS cannot be used indoors. In addition to being able to execute, it is necessary to make the transmission output on the portable terminal side common or unified.

A feature of the present invention that achieves the above object is an elevator system comprising an elevator and a portable terminal that is carried by a user of the elevator and can communicate with the elevator. A wireless communication unit including a wireless transmitter and a wireless receiver capable of communicating with both of the elevators is provided, and a received signal strength of a wireless signal transmitted from the wireless transmitter received by the mobile terminal is transmitted from the mobile terminal to the wireless The wireless transmitter transmits the received signal strength to the elevator and the wireless communication means is a wireless access point in which the wireless transmitter and the wireless receiver are integrated. , Based on the received signal strength received by the mobile terminal transmitted from the wireless access point to the elevator. A storage means for storing a change pattern of a received signal intensity by opening and closing an entrance door provided in the vicinity of the elevator. The position and flow line of the portable terminal can be estimated using the stored received signal strength change pattern .

  According to the present invention, an AP (access point) is provided on the elevator side, and the position of the mobile terminal of the elevator user is estimated based on the electric field strength map of the radio wave transmitted from the AP. The user's flow line can be detected by identifying the elevator and registration and cancellation of the elevator call can be executed before entering the elevator. In addition, it is necessary to standardize and unify the transmission output on the portable terminal side.

1 is a block diagram of an embodiment of an elevator system according to the present invention. It is a flowchart which shows an example of the user recognition performed with the elevator system shown in FIG. It is a block diagram of the other Example of the elevator system which concerns on this invention. It is a flowchart which shows an example of the received signal strength transmission process in the portable terminal with which the elevator system shown in FIG. 3 is provided. It is a flowchart which shows the other example of reception signal strength acquisition in the portable terminal with which the elevator system shown in FIG. 3 is provided. It is a figure explaining received signal strength distribution around an elevator hall. It is a graph explaining the change of the received signal strength by a flow line. It is a flowchart which shows the example which searches a mesh from the received signal strength in the elevator which concerns on this invention. It is a flowchart which shows an example of the pattern matching process of the received signal strength in the elevator which concerns on this invention. It is an example of the received signal strength pattern memorize | stored in the memory | storage means with which the elevator which concerns on this invention is provided. It is a flowchart of the boundary process in the elevator which concerns on this invention. It is a detailed flowchart of each boundary process shown in FIG. It is a flowchart which shows an example of the call registration display operation | movement in the elevator system which concerns on this invention. It is a flowchart which shows an example of the call registration or cancellation operation | movement in the elevator system which concerns on this invention. It is an example of the received signal intensity distribution data memorize | stored in the memory | storage means with which the elevator which concerns on this invention is provided. It is a flowchart which shows an example of mesh creation for reception signal strength distribution calculation in the elevator which concerns on this invention.

  Hereinafter, an embodiment of an elevator system 300 according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an elevator system 300, in which a passenger (user) carrying the mobile terminal 10 instructs the elevator 40 to remotely perform call registration or call registration cancellation. A radio transmitter 20 and a radio receiver 30 are provided in the vicinity of the elevator 40. A communication path 45 is provided between the elevator 40 and the wireless transmitter 20 and the wireless receiver 30.

  The mobile terminal 10 receives the radio transmitted from the radio transmitter 20. At the same time, radio is transmitted from the mobile terminal 10 to the radio receiver 30. Since the wireless transmitter 20 and the wireless receiver 30 are connected to the elevator 40 via the communication path 45, there are no restrictions on the installation location of the wireless transmitter 20 and the wireless receiver 30.

  For example, the wireless transmitter 20 can be installed at the entrance of a building where the elevator 40 is installed, and the wireless receiver 30 can be installed in the elevator hall. The arrangement of the radio receiver 30 and the radio transmitter 20 may be reversed so that the radio receiver 30 is provided at the entrance of the building and the radio transmitter 20 is provided in the elevator hall. Both the wireless transmitter 20 and the wireless receiver 30 can be installed in the elevator hall.

  The operation sequence of each part provided in the elevator system 300 having the above configuration will be described below. The wireless transmitter 20 arranged in the vicinity of the elevator 40 continuously transmits wireless (step S10). When the user approaches the elevator 40, the mobile terminal 10 carried by the user receives the radio transmitted from the radio transmitter 20 (step S20).

  The portable terminal 10 confirms whether or not it is already connected to the wireless receiver 30 (step S30). If not already connected, the mobile terminal 10 transmits a connection request to the wireless receiver 30 (step S40). The wireless receiver 30 receives the connection request transmitted from the mobile terminal 10 (step S50), and transmits a connection permission to the mobile terminal 10 (step S60).

  The portable terminal 10 confirms whether or not the connection request transmitted by itself is permitted by transmission from the wireless receiver 30 (step S70), and if not confirmed, returns to step S20 which is a reception state. If the permission of the connection request is confirmed, it is determined that the connection has been established (step S80). Since the mobile terminal 10 is connected to the wireless receiver 30, the mobile terminal 10 transmits the received radio wave intensity to the wireless receiver 30 (step S90). The mobile terminal 10 that has completed the transmission returns to step S20 and waits for reception from the wireless transmitter 20.

  At this time, the radio receiver 30 receives the received signal strength transmitted from the mobile terminal 10 (step S100), and transmits the received received signal strength to the elevator 40 (step S110). After completing the transmission, the wireless receiver 30 returns to step S100 and waits for reception signal strength reception from the portable terminal 10. On the other hand, the elevator 40 receives the received signal strength transmitted from the wireless receiver 30 (step S120).

  Since the information transfer sequence between the mobile terminal 10 and the wireless transmitter 20, the wireless receiver 30, and the elevator 40 is as shown in FIG. 2, the received signal strength received by the mobile terminal 10 is strong enough to establish a wireless connection. It is possible to transmit from the portable terminal 10 to the elevator 40 only in the case of Therefore, the reception signal strength can be sequentially transmitted from the portable terminal 10 to the elevator 40 when the wireless transmission can be reliably performed.

  In the above embodiment, the wireless transmitter 20 and the wireless receiver 30 are configured separately, but the wireless transmitter 20 and the wireless receiver 30 may be integrated to use a wireless access point (wireless AP) 50. FIG. 3 shows a block diagram of an elevator system 300 provided with the wireless AP 50. In the wireless AP 50, the wireless transmitter 22 and the wireless receiver 32 are integrated. Other configurations are the same as those in FIG.

  In the example shown in FIG. 3, the use of the wireless AP 50 reduces the degree of freedom of installation as compared with the case where the radio transmitter 20 and the radio receiver 30 are installed separately, but the installation becomes easy. When the wireless AP 50 is installed in the elevator hall, the received signal strength increases as the user who has the mobile terminal 10 approaches the elevator 40. Conversely, the farther away from the elevator, the weaker the received signal strength. Therefore, if the received signal strength is monitored, the direction of movement of the user becomes clear.

  In the following description, it is assumed that the wireless transmitter 20 and the wireless receiver 30 are provided in the wireless AP 50.

  Next, the timing at which the mobile terminal 10 receiving the radio transmitted from the radio transmitter 20 transmits the received radio signal strength to the radio receiver 30 will be described with reference to FIG. FIG. 4 is a flowchart illustrating processing in which the mobile terminal 10 transmits the reception intensity of the signal transmitted by the transmitter 20 of the wireless AP 50 to the wireless receiver 30 at regular time intervals.

  The portable terminal 10 confirms the elapsed time since it entered the reception start state by using a timer that it has (step S200). If the elapsed time from the predetermined reception start state has not passed, the timer is updated and reception is awaited (step S210). When the predetermined elapsed time has passed, the radio transmitted from the transmitter 20 is received (step S20), and the received signal strength is transmitted to the radio receiver 30 (step S90). After transmitting the received signal strength, the mobile terminal 10 resets the timer (step S220), returns to step S200, and confirms the elapsed time.

  Various methods are conceivable for determining the predetermined time. For example, it differs depending on how accurately the change of the moving distance of the user of the elevator 40 is estimated. You may make it determine from the correlation from the distance from the wireless transmitter 20, the change of the received signal strength transmitted, and the moving speed of the user of the elevator 40. FIG.

  Next, another timing at which the mobile terminal 10 receiving the radio transmitted from the radio transmitter 20 transmits the received radio signal strength to the radio receiver 30 will be described with reference to FIG. In the example shown in FIG. 4, transmission is performed from the mobile terminal 10 to the wireless receiver 30 at a constant timing. However, in this example, so-called event-driven transmission is performed in which transmission is performed only when the received signal strength changes. . FIG. 5 is a flowchart of a process in which the mobile terminal 10 transmits the received signal strength to the wireless device 30 in accordance with the received signal strength change.

  The mobile terminal 10 receives the radio transmitted by the radio transmitter 20 (step S20), and stores the received signal strength of the received radio in its own storage means (step S230). Note that the previous signal intensity is also stored in the storage means. The previous received signal strength stored there is compared with the received signal strength received this time, and the change is calculated (step S240).

  It is checked whether or not the change obtained by calculating a predetermined change threshold is exceeded (step S250). When the calculated change is smaller than the threshold, the process returns to step S20 and continues to receive the radio transmitted from the transmitter 20. If the calculated change exceeds the threshold, the received signal strength is transmitted to the wireless receiver 30 as an event occurrence (step S90).

  Thus, since the transmission from the portable terminal 10 to the wireless receiver 30 is made an event-driven sequence, the wireless transmitter is compared with the case where the received signal strength is transmitted from the portable terminal 10 to the wireless receiver 30 at regular intervals. The number of transmissions to 30 can be reduced. For example, when the user of the elevator 40 remains in one place, that is, when the received signal strength has not changed significantly, it is not necessary to transmit the received signal strength, and the frequency of communication with the wireless receiver 30 is reduced. it can.

  Next, a method of estimating a flow line that is a trajectory until a user gets into the elevator 40 using the wireless received signal intensity distribution transmitted from the wireless transmitter 20 will be described. FIG. 6 shows the received signal intensity distribution 60 of the radio wave transmitted from the radio transmitter 20 arranged in the vicinity of the front surface of the elevator 40 and the shape of the map 70 used when the received signal intensity distribution 60 is obtained. 6A is a diagram in which a received signal strength distribution 60 is overwritten on a plan view around the elevator 40, and FIG. 6B is an example of a map 70 used when the received signal strength distribution 60 is obtained. is there. FIG. 6C is a diagram in which the received signal strength distribution 60 and the movement path of the user are overwritten, and FIG. 6D is a shape of another map 71 used when the received signal strength distribution 60 is obtained. It is.

  In the vicinity of the front side of the elevator 40, the wireless transmitter 20 is arranged. An elevator hall 42 that is slightly wider than the elevator 40 and substantially rectangular is formed in front of the radio transmitter 20. The front end of the elevator hall 42 is formed with a wide main passage for a user who gets into the elevator. A passage 44 having a width larger than that of the main passage is formed on the right side of the elevator hall 42.

  In this way, when the radio transmitter 20 and the elevator hall 42 and the passage 42 are arranged and formed, the intensity of the received signal transmitted from the actually measured radio transmitter 20 or the intensity distribution 60 of the received signal obtained by numerical calculation, A map 70 is obtained by dividing into meshes. In the case of the map 70 shown in FIG. 6B, meshes 72 in which the elevator hall 42 and the passage 42 are divided at equal widths in the front-rear direction and the left-right direction are formed, and received signals in the vicinity of the mesh 72 are formed in each mesh 72. Assign strength.

  When a user carrying the mobile terminal 10 moves to use the elevator 40, the user passes through a plurality of meshes 72. As a result, the strength of the wireless reception signal transmitted from the wireless transmitter 20 received by the mobile terminal 10 changes according to the mesh 72 through which the mobile terminal 10 passes, and also changes with time. That is, by causing the mobile terminal 10 to transmit a change in the received signal strength of the mobile terminal 10 to the wireless receiver 30, the elevator 40 can grasp the movement status of the user.

  FIG. 7 is a graph showing the radio reception signal strength received by the mobile terminal 10 when the user follows the movement route indicated by the line segment A-A ′ and the broken line B-B ′ in FIG. 6. The horizontal axis is the elapsed time, and the vertical axis is the received signal strength. The graphs of the received signal strength accompanying the movement of the user are flow lines 82 and 84. When the user goes straight to the elevator 40 from the main passage (A-A ′), the flow line 82 increases almost linearly as the distance from the elevator 40 approaches the elevator 40. On the other hand, when the user goes from the side passage 44 to the elevator 40, the reception signal strength in the side passage is low, so the reception signal strength is initially low. 6 and 7, the elevator hall 42 and the passage 44 are two-dimensional, so the map 70 is a two-dimensional space. However, the map 70 can be handled in the same manner.

  Next, a method for sequentially estimating the flow line 80 based on the received signal strength repeatedly transmitted from the mobile terminal 10 will be described with reference to FIG. FIG. 8 is a flowchart showing an example of sequentially searching the flow line 80 from the map 70, FIG. 8 (a) is a diagram showing the processing in the elevator 40, and FIG. 8 (b) is the processing in progress. It is the figure which showed the content of the route search process (step S330) in detail.

The elevator 40 receives the radio wave transmitted by the mobile terminal 10 as the received signal strength E _t0 (step S300), and searches the map 70 for a mesh 72 having a value close to the received signal strength E _t0 of the received radio wave (step S300). S310). The position (mesh number) of the mesh 72 extracted by searching and the received signal strength E _t0 are temporarily stored in the storage means provided therein (step S320). When a plurality of meshes 72 are extracted, a route search process (step S330) described in detail below is performed on each extracted mesh 72.

The elevator 40 receives the received signal strength newly transmitted by the mobile terminal 10 (step S340). The new received signal strength at this time is defined as _Et1 . The elevator 40 searches for a mesh 72 having a value close to the newly received signal strength E _t1 , starting from each of the plurality of meshes 72 having the received signal strength E _t0 previously received and stored on the map 70. (Step S350). In this search, only the mesh 72 within the range in which the user can move is searched.

It is confirmed whether there is a mesh 72 satisfying such a search condition (step S360). When the mesh 72 satisfying the condition is found, the received signal strength E _t0 received first and stored in the storage means is updated to the newly received received signal strength E _t1 . That is, the mesh 72 having the electric field intensity E _t0 is replaced with the mesh 72 having the electric field intensity E _t1 (step S370).

Since it was found that there are meshes 72 corresponding to the two electrolytic strengths E _t0 and E _t1 , the slope of the received signal strength from these meshes 72 (the value obtained by dividing the difference in received signal strength by the distance between the meshes). ) Is calculated (step S380). On the other hand, if the mesh 72 satisfying the search condition is not found, it cannot be regarded as a user's flow line candidate, so the mesh 72 as a starting point is deleted (step S370). A search is made for a combination of meshes 72 having an inclination close to the inclination of the received signal intensity (step S400).

  In this example, two searches are executed in parallel, a search based on the value of the electric field strength of the received signal itself and a search based on the gradient of the electric field strength of the received signal. In this way, a plurality of flow lines are obtained from a plurality of starting points. Therefore, the elevator 40 determines whether any of the flow lines can be regarded as having arrived at the mesh 72 corresponding to the predetermined elevator 40 (step S410). If it is determined that it has arrived at the mesh 72, the estimation of the flow line 80 ends (step S390). When it is determined that the vehicle has not yet arrived at the elevator 40, the route search in step S330 is continued.

  The received signal strength increases as it approaches the radio transmitter 20, and conversely decreases as it leaves. Therefore, when the slope of the change in the received signal strength is steep, it can be estimated that the moving speed of the user having the mobile terminal 10 is fast, and the user of the elevator 40 can be estimated to be steep. In this case, even if the user has not reached the mesh 72 that calls the elevator 40, the controller of the elevator 40 executes the landing call so that the arrival of the car can be made in time for the user's boarding. It becomes possible. Even if the radio transmitter 20 transmits at a constant output, the received signal strength is highly likely to change greatly depending on the reception performance of the mobile terminal 10 possessed by the user of the elevator 40. Therefore, a likelihood is required in the search for the received signal strength.

  In the flow line estimation method shown in FIG. 8, the flow line is estimated from the received signal intensity of the radio wave transmitted from the mobile terminal 10 to the elevator 40 and its inclination. Instead of this method, as shown in FIG. 9, it is also possible to estimate the flow line 80 based on the pattern of the received signal strength that the mobile terminal 10 repeatedly transmits. FIG. 9 is a flowchart showing an example in which the elevator 40 estimates the flow line 80 based on a characteristic change pattern of received signal strength in advance.

  Depending on the structure such as the corner of the building and the material of the wall, a characteristic pattern occurs in the received signal strength change. The pattern of the received signal strength change is referred to as a change pattern 90. A change pattern 90 associated with a corner or a wall surface is extracted from the change in received signal strength, and a specific point is specified. The elevator 40 stores it in the storage means that it owns in a combination table format of the mesh 72 corresponding to the specific point and the change pattern 90.

  An example of this table is shown in FIG. A combination of the temporal change pattern 90 of the received intensity and the position of the mesh 72 at a specific point where the change pattern occurs is stored in the table 110 format. For example, at the mesh position (10, 30), a change pattern in which the received signal strength peaks as time passes appears, and at the mesh position (50, 50), a pattern in which the received signal strength changes in an S shape with time passes. ing.

  Returning to FIG. 9, in the elevator 40, the received signal strength received is stored in the storage means as time-series data. The elevator 40 receives the received signal strength newly transmitted by the mobile terminal 10 (step S430), and updates the time series data with the received received signal strength (step S440). Next, the elevator 40 extracts a feature pattern from the time-series received signal strength data (step S450). The feature pattern of the time series data is pattern-matched with the change pattern 90 (step S460). It is checked whether there is a matched change pattern 90 (step S470).

  If there is a matching pattern, the mesh position of the specific point associated with the pattern is determined (step S480). Since the specific point has been determined, the flow line 80 is derived by drawing the determined mesh 72 on the map 70. If there is no matching pattern, it is determined that the pattern that can be extracted from the time-series data at the present time is insufficient, and the process returns to step S430 to enter a reception standby state waiting for reception of data with a new received signal strength.

  In the case of a wide elevator hall or the like with good visibility that is connected to a plurality of passages, the change in the received signal intensity may be detected only by the change in the structure such as a bend or the wall material because the radio wave propagation is good. By obtaining in advance such a specific position as shown in FIG. 10 where the received signal intensity changes characteristically and a change pattern 90 due to the temporal transition of the received signal intensity at the specific position, the flow line 80 can be obtained even in such a place. Can be estimated.

  Since the flow line 80 of the user of the elevator 40 has been estimated, it is possible to register the call or cancellation of the elevator 40 from a remote location before the user gets into the elevator 40, rather than from within the elevator 40 or at the landing. A method for the elevator 40 to register the call or cancellation of the elevator 40 based on the estimated flow line 80 will be described with reference to FIGS. 11 and 12. FIG. 11 is a flowchart for registering a call or cancellation of the elevator 40 in response to the user approaching or leaving the position of the predetermined mesh 72 on the map 70. FIG. 12 is a flowchart showing details of the call boundary process S550, the cancel boundary process S560, and the ride boundary process S570 in the registration process shown in FIG.

  When the elevator 40 determines registration of a call or cancellation, it is assumed that there are three positions: a position where the user of the elevator 40 generates a call, a position where the ride is reliable, and a position where the cancellation is reliable. Convenient. These positions are referred to as a call boundary 110, a ride boundary 120, and a cancel boundary 130. The distance from each boundary 110 to 130 to the elevator 40 is assumed to be (distance from the calling boundary 110 to the elevator 40)> (distance from the cancellation boundary 130 to the elevator 40)> (distance from the riding boundary 120 to the elevator 40). To do. Here, the elevator 40 manages information on whether the call is registered or canceled. In addition, the call registration timer measures the time from call generation.

  The elevator 40 estimates the flow line 80 by any one of the flow line estimation methods described above, and obtains the traveling direction and the current position of the user of the elevator 40. Based on the user's traveling direction and information on the current position, the mesh 72 corresponding to the current position is determined (step S500). It is confirmed whether or not the determined mesh 72 matches any of the call boundary 110, the ride boundary 120, and the cancel boundary 130 (step S510).

  If the user is not at any boundary, the call registration timer is confirmed (step S520). This is to confirm when the call is generated. If the call registration timer has timed out, the call is a fairly old call, and it is highly likely that it has been invalidated by raising or lowering the current car. Store (step S530). Then, in preparation for a new call, the process returns to step S500 to wait for reception signal strength reception.

  When the user of the elevator 40 is at any one of the calling boundary 110, the riding boundary 120, and the cancellation boundary 130, the mesh position is determined according to the procedure shown in FIG. 9, for example (step S480). Next, it is confirmed which of the above three boundaries the user is at (step 540).

  If it is estimated or determined that the user of the elevator 40 is at the call boundary 110, call boundary processing is executed (step S550). In this case, the elevator 40 confirms the traveling direction of the user from the change in the flow line (step S551). If the direction is closer to the elevator 40, the call is registered and the call registration state is stored (step S554). The elevator 40 starts counting by the call registration timer and prepares for the user to actually use the elevator 40 (step S555).

  If the traveling direction of the user of the elevator 40 is the direction of leaving the elevator 40, the call registration state is confirmed (step S552). If it is a call registration state in step S554, the registration is canceled and the cancel state is stored (step S553).

  If it is estimated or determined that the user is at the cancel boundary 130 in the boundary confirmation in step S540, cancel boundary processing is executed (step S560). In this case, the elevator 40 confirms the traveling direction of the user from the change in the flow line (step S561). If the direction is to leave the elevator 40, it is confirmed whether or not there is a call registration in step S554 (S562). If the call has already been registered, it is canceled and the cancel state is stored (step S563). Since the call registration is canceled, the call registration timer is also reset to prepare for a new call registration (step S564).

  If the traveling direction of the user of the elevator 40 is a direction approaching the elevator 40, it is confirmed whether or not there is a call registration in step S554 (step S565). If the call is registered, there is a high possibility that the user gets into the elevator 40, so the call registration is maintained as it is. If the call is not registered, it is considered that the user is approaching the elevator 40 and is likely to get into the elevator 40, and the flow line is re-estimated according to the method shown in FIGS. 8 and 9 (step S620). .

  If it is confirmed in step S540 of FIG. 11 that the user of the elevator 40 has entered the boarding boundary 120, the elevator 40 executes landing boundary processing (step S570). When there is a user at the landing boundary, it is expected that the user will get into the elevator 40 almost certainly. Therefore, the elevator 40 confirms whether or not the call registration in step S554 has been performed (step S571). If the call registration has been made, the call registration timer is reset so that the user can check that the user gets into the elevator (step S573). If the call registration of step S554 is not made and the state is canceled (S553), the flow line is re-estimated according to the method shown in FIG. 8 and FIG. (Step S572).

  In this way, three boundaries are provided depending on the position of the user of the elevator 40, whether the user gets close to the elevator from the flow line 80 of the user, or just passes through the vicinity of the elevator, etc. Can be easily determined by the elevator. As a result, the elevator 40 can automatically cancel call registration and call registration.

  In the above example, only car call registration has been described. However, if the destination floor used by the user is registered in advance in the mobile terminal 10, for example, when the mobile terminal 10 and the wireless receiver 30 are connected, the destination floor information is simply transmitted to the elevator 40, and only call registration is performed. You can also register a destination floor at the same time.

  By the above procedure, the elevator 40 can estimate the passenger's flow line 80 and automatically execute call registration or call registration cancellation. However, the behavior of the elevator 40 is not yet known to the elevator 40 user. For this reason, the user needs to perform a useless operation such as registering a use floor by pressing a landing button or the like. Therefore, the call registration of the elevator 40 and the cancellation thereof are notified to the portable terminal 10 possessed by the user. A method for notifying the user will be described with reference to the flowchart shown in FIG. FIG. 13 shows an example in which the elevator 40 notifies the portable terminal 10 of a message indicating that the call has been registered via the wireless transmitter 20.

  In order to notify the mobile terminal 10 of call registration or call registration cancellation, the elevator 40 first executes call registration (step S700). Then, the elevator 40 transmits a message indicating that call registration has been performed to the wireless transmitter 20 via the wireless receiver 30 connected through the communication path 45 (step S710). On the other hand, the wireless transmitter 20 receives the message transmitted by the elevator 40 (step S720), and transmits the message to the mobile terminal 10 (step S730).

  When message communication is a sequence that always requires a response, a response timeout is defined. When a timeout occurs because the mobile terminal 10 does not return a response, the wireless transmitter 20 transmits a communication failure to the elevator 40 (step S740). In this case, the elevator 40 confirms the message “communication failure” (step S750). The elevator 40 confirms the communication result (step S760). If communication fails, the call registration status cannot be notified to the user. Therefore, the call registered in step S554 is canceled so that the user registers the landing-side call and stops the elevator 40 (S760).

  During the above operation, if the mobile terminal 10 can receive the message sent from the wireless transmitter 20 (step S770), it displays the transmitted message on its own display means (step S772). Then, the portable terminal 10 transmits a message response to the wireless transmitter 20 (step S774).

  When a response to the transmission to the portable terminal 10 is sent from the portable terminal 10 to the wireless receiver 30, the wireless transmitter 20 confirms the message response via the wireless receiver 30 connected through the communication path 45 (step S742). ). Then, the message response is transmitted to the elevator 40 as “communication success” (step S744). The elevator 40 confirms the message in step S750. Then, the communication result is determined (step S760). Since the communication is successful, the processing is continued as it is.

  In the above procedure for displaying call registration or call registration cancellation on the mobile terminal 10, the mobile terminal 10 stores information on the destination floor used by the user, and the message response of the mobile terminal 10 shown in step S774. Therefore, the destination floor information can be transmitted by following the message confirmation procedure of the elevator 40 shown in step S750. In that case, if it is “successful communication”, the elevator 40 can also register the destination floor, and further automation can be achieved.

  Next, as described above, after the elevator 40 estimates the flow line 80 of the user of the elevator 40, automatically cancels call registration or call registration, and notifies the mobile terminal 10 possessed by the user of that fact The user response will be described below with reference to FIG. FIG. 14 is a flowchart illustrating an example in which the portable terminal 10 responds to an instruction request when the elevator 40 transmits a call registration message and an instruction to the message to the portable terminal 10 via the wireless transmitter 20. It is shown by.

  When the portable terminal 10 receives the message from the wireless transmitter 20 (step S770), the portable terminal 10 displays the message on its own display means (step S772), and inputs the command for the message and the destination floor to the user of the elevator 40. A prompting display is performed (step S780). Here, the commands are “call registration” and “cancel call registration”.

  The mobile terminal 10 transmits the command input by the user and the destination floor to the wireless transmitter 20 as a command response. The wireless transmitter 20 confirms the command transmitted by the mobile terminal 10 via the wireless receiver 30 (step S782). The wireless transmitter 20 transmits the command and the destination floor to the elevator 40 (step S784). The elevator 40 confirms the command and destination floor transmitted by the wireless transmitter 20 (step S786).

  Next, the elevator 40 analyzes the transmitted command and the destination floor (step S788), and if the command is “call registration”, registers the destination floor specified by the user (step S790). If the command is “cancel call registration”, the call registration already registered is canceled (step S762).

  Thus, based on the flow line of the user of the elevator 40, the call intention automatically executed by the elevator 40, the intention of the user who owns the mobile terminal 10, before the user gets into the elevator 40, Can be reflected in call registration. When call registration is unnecessary, the operation efficiency of the elevator 40 can be improved by cancellation.

  In the above embodiment, the transmission level from the transmitter 20 provided in the vicinity of the elevator 30 is constant. However, if the transmission level is constant, the received signal strength at a certain level between the mobile terminals 10 at the same position is not necessarily limited. Cannot be obtained. For example, when a door is provided in a building and the door is opened and closed, the received signal strength changes greatly.

  An example in which the mesh 72 is searched when the received signal strength changes rapidly due to the opening / closing of the door will be described with reference to FIGS. 15 and 16. FIG. 15 shows an example of the position of the door opening / closing reception strength change table 200 describing the received signal strength change. FIG. 16 shows the change in the received signal strength when the door is provided at the building entrance and the building. It is a flowchart which shows the flow line preparation procedure considered. This is an example of searching for mesh 72.

  The storage means provided in the elevator 40 is provided with a door opening / closing reception intensity change table 200. The door opening / closing reception strength change table 200 stores a reception signal strength 210 when the door is open and a reception signal strength 212 when the door is closed, at the position of the mesh 72 provided with the door. For example, at the position of the door (20, 30) provided inside the building, if the mobile terminal 10 is located at the door position when the door is opened, the received signal intensity 210 of the mobile terminal 10 is 60%. On the other hand, the received signal strength 212 of the mobile terminal 10 when the door is closed at the same position (20, 30) is 20%. Similarly, at the door position (100, 50) that forms a boundary with the outside, the received signal strength of the mobile terminal 10 when the door is opened is 15%, whereas the received signal strength when the door is closed is Cutting (0%).

  A flow line search using the door opening / closing reception intensity change table 200 having such information will be described with reference to FIG. This is a procedure for searching for the presence or absence of a door on the search area, that is, the map 70. When the elevator 40 receives the wireless reception signal strength transmitted from the transmitter 30 (step S800), the elevator 40 checks whether or not there is a door candidate in the previous search of the door opening / closing reception strength change table 200 (step S810). ). If a mesh 72 that is a door candidate is not found in the previous search, the mesh 72 that matches the received signal strength in the door opening / closing received strength change table 200 is searched (step S820), and the door candidate is stored (step S830). . If there is no door candidate in this search, the door candidate is left as it is.

  If a door candidate is found in the previous search of the door opening / closing reception intensity change table 200, the door opening / closing reception intensity change table 200 is searched (step S840). The door portion mesh 72 that matches the received signal strength change received in step S800 is searched (step S850). If the mesh 72 corresponding to the door is not found, the door candidate is deleted (step S860). If the mesh 72 corresponding to the door is found, it is determined that the user has a high probability of being near the door (step S870).

  In the above embodiment, the mesh 72 is created uniformly for the map 70. However, as shown in FIG. 6 (a), the change in the received signal intensity is rough, so that the mesh is adjusted according to this roughness. If created, a more accurate flow line can be determined. Therefore, as shown in FIG. 6D, a map map 70 having non-uniform meshes 74 and 76 corresponding to changes in the received signal strength is created.

  In the map 70 of FIG. 6A, since the mesh 72 is made uniform, the storage capacity of the mesh 72 becomes enormous and the search takes time. In this example, the minute mesh 74 is created only in a portion where the change in the received signal strength is locally abrupt, and the portion where the change is small is a vast mesh 76. Therefore, the storage capacity of the map 71 is reduced and the search time is reduced. Can be shortened.

  As described above, according to the present embodiment and the modification, the flow line of the user can be estimated from the change in the reception intensity of the portable terminal that the user of the elevator 40 that is remote from the elevator car 40 has. Further, by estimating the flow line, call registration and call registration can be canceled before the user gets into the elevator on the elevator side, and the operation efficiency of the elevator is improved.

  In addition, a wireless access point (AP) is installed in the elevator, and based on the electric field strength map of the radio wave transmitted from the AP, the flow line of the elevator user can be estimated from the electric field strength change on the electric field strength map. Calls can be registered only when the possibility of boarding becomes higher. At the same time, since the portable terminal simply returns the reception intensity to the elevator side, it is not necessary to standardize or unify the transmission output on the portable terminal side.

  In addition, in the said Example and modification, if the means to register the flow line with a high frequency in advance is provided, the time required for estimation of a same line can be shortened.

DESCRIPTION OF SYMBOLS 10 ... Portable terminal 20, 22 ... Wireless transmitter, 30, 32 ... Wireless receiver, 40 ... Elevator, 42 ... Elevator hall, 44 ... Passage, 45 ... Communication path, 50 ... Wireless access point (wireless AP), 60 ... Received signal intensity distribution, 70 ... Map, 71 ... Non-uniform map, 72 ... Mesh, 74 ... Fine mesh, 76 ... Vast mesh, 82 ... AA 'flow line, 84 ... BB' flow line, 90 ... Received signal intensity change pattern, 110 ... Change pattern table, 200 ... Door open / close received signal intensity change pattern table, 210 ... Door open received signal intensity, 212 ... Door closed received signal intensity, 300 ... Elevator system.

Claims (4)

In an elevator system comprising an elevator and a portable terminal that is carried by a user of the elevator and can communicate with the elevator,
A wireless communication unit including a wireless transmitter and a wireless receiver capable of communicating with both the portable terminal and the elevator is provided in the vicinity of the elevator, and a wireless signal transmitted from the wireless transmitter received by the portable terminal is received. Signal strength is transmitted from the portable terminal to the wireless receiver, and the transmitted received signal strength is transmitted to the elevator by the wireless transmitter .
The wireless communication means is a wireless access point in which the wireless transmitter and the wireless receiver are integrated, and based on the received signal strength received by the mobile terminal transmitted from the wireless access point to the elevator, The elevator can estimate the position and flow line of the mobile terminal,
Storage means for storing a change pattern of the received signal intensity due to opening / closing of an entrance door provided in the vicinity of the elevator is provided in the elevator, and the portable signal is transmitted using the received signal intensity change pattern stored in the storage means. An elevator system characterized in that the position and flow line of a terminal can be estimated . 2. The elevator according to claim 1, wherein the elevator can perform call registration or cancellation of call registration before the elevator user gets into the elevator from the position and flow line of the mobile terminal. Elevator system. 2. The elevator system according to claim 1 , wherein when the elevator receives the destination floor information stored in the portable terminal, the elevator identifies the destination floor and performs car call registration . 2. The elevator system according to claim 1 , wherein the portable terminal has notification means for notifying a user who carries the portable terminal when receiving a call registration from the elevator.

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