KR20220094709A - Structure management system using a drone equipped with an RFID reader - Google Patents

Abstract

The present invention relates to a structure management system using a drone equipped with an RFID reader, which can stably manage structures such as buildings, apartments, dams, bridges, and the like without using GPS signals. According to the present invention, the structure management system comprises: flight guide RFID tags installed at multiple points of the structure and providing flight path information of the drones equipped with the RFID reader; and a drone having the RFID reader, flying along the flight path of the flight guide RFID tags read during flight, and managing the structure.

Description

Structure management system using a drone equipped with an RFID reader}

The present invention relates to a structure management system using RFID, and more particularly, a drone equipped with an RFID reader that performs structure management through reading of an RFID tag using a drone equipped with an RFID reader in a structure to which RFID tags are attached. It relates to the structure management system used.

Various structures such as buildings, apartments, dams, bridges and bridges are being built. These structures require maintenance after construction, and for the purpose of maintenance, safety inspections of the structures are performed periodically.

In general, safety inspection is performed visually by the manager or by using an instrument.

However, if the size of the structure is large, the scope that the manager can directly inspect is limited. Of course, if the structure is equipped with a gondola, the manager can inspect the structure while riding the gondola, but when using the gondola, considerable attention must be paid to safety.

Patent Publication No. 2007-0089284 (2007.08.31.)

In order to solve this problem, a method of using a drone equipped with a camera may be considered. A safety inspection using a drone is a safer and more convenient method compared to a manager directly performing a safety inspection on a structure.

However, since the manager directly controls the drone and performs safety checks on the structure, a separate manager who can stably control the drone may be needed. And while the manager controls the drone, it is not easy in reality to perform a safety check on the entire structure.

When the manager controls the drone, the position of the drone with respect to the structure is adjusted using the GPS signal. In general, the safety inspection of the structure is performed in a state located close to the structure. However, when the drone approaches a structure or the drone is obscured by an accessory of the structure, the reception rate of the GPS signal decreases. For example, when a drone inspects while flying close to the exterior wall of a building, the reception rate of the GPS signal decreases. Alternatively, when inspecting a bridge pier with a drone, when safety inspection is performed on a pier part covered by the bridge top plate, the GPS signal reception rate may decrease or the GPS signal may not be received.

Accordingly, an object of the present invention is to provide a structure management system using a drone having an RFID reader capable of stably managing the structure.

Another object of the present invention is to provide a structure management system using a drone equipped with an RFID reader capable of stably managing a structure even without using a GPS signal.

Another object of the present invention is to provide a structure management system using a drone equipped with an RFID reader capable of stably managing structures even by managers who cannot control the drones skillfully.

In order to achieve the above object, the present invention is installed at a plurality of points in the structure, flight guide RFID tags for providing flight path information of a drone equipped with an RFID reader; and the drone having the RFID reader, flying along the flight path of the flight guide RFID tag read during flight, and managing the structure; a structure management system using a drone having an RFID reader including a to provide.

The drone may further include a safety checker for performing a safety check of the structure.

The safety checker may include a camera or a non-destructive tester.

The flight guide RFID tags are installed at a plurality of points of the structure along the flight path of the drone, and may provide flight path information capable of flying with neighboring flight guide RFID tags.

The flight guide RFID tags may include a plurality of turning point RFID tags installed at a turning point in the flight path of the drone and providing change information on the current flight direction of the drone.

The turning point RFID tags may provide information on vertical, horizontal, or rotational flight of the drone.

The flight guide RFID tags may further include at least one intermediate RFID tag installed between the turning point RFID tags and providing maintenance information on the current flight direction of the drone.

When the strength of the signal read from the flight guide RFID tag is greater than or equal to a predetermined strength, the RFID reader of the drone may perform flight according to the flight path information of the read flight guide RFID tag.

The structure management system according to the present invention may further include a drone controller that transmits a control signal to the drone and transmits a flight command to the drone for structure management.

And the structure management system according to the present invention, the information collection RFID tag installed in the vicinity of the flight guide RFID tags to collect information necessary for the management of the structure; may further include. In this case, the drone may collect information necessary for managing the structure by reading the information collection RFID tags located in the vicinity of the flight guide RFID tags while flying along the flight path provided by the flight guide RFID tags.

According to the present invention, since a safety check is performed on a structure while flying in the vicinity of the structure using a drone equipped with an RFID reader in a structure to which an RFID tag is attached, the structure can be managed stably.

Since the flight guidance RFID tag attached to the structure provides the flight path for the drone to check the safety of the structure, it is possible to perform safety check while flying stably even for structures that have poor GPS signal reception or cannot receive GPS signals. can

In addition, since the flight guidance RFID tag attached to the structure provides the flight path for the drone to check the safety of the structure, even managers who cannot control the drone can perform the management of the structure stably.

Since the present invention performs structure management using a drone equipped with an RFID reader, it is possible to prevent structure management errors due to an administrator's mistake.

1 is a block diagram showing a structure management system using a drone equipped with an RFID reader according to an embodiment of the present invention.
2 and 3 are exemplary views showing a state in which structure management is performed by a drone in the structure management system of FIG. 1 .

It should be noted that, in the following description, only parts necessary for understanding the embodiments of the present invention will be described, and descriptions of other parts will be omitted without departing from the gist of the present invention.

The terms or words used in the present specification and claims described below should not be construed as being limited to their ordinary or dictionary meanings, and the inventors have appropriate concepts of terms to describe their invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined in Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and variations.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram showing a structure management system using a drone equipped with an RFID reader according to an embodiment of the present invention. And FIGS. 2 and 3 are exemplary views showing a state in which structure management is performed by a drone in the structure management system of FIG. 1 .

1 to 3 , the structure management system 100 according to the present embodiment is based on the RFID tag system 40 installed in the structure 10 and the tag information read from the RFID tag system 40 . It includes a drone 50 that performs management of the structure 10 while flying around the 10 .

The RFID tag system 40 includes flight guidance RFID tags 43 . The flight guide RFID tags 43 are installed at multiple points of the structure 10 , and provide flight path information of the drone 50 equipped with the RFID reader 60 .

The RFID tag system 40 may further include information collection RFID tags 41 . The information collection RFID tags 41 are installed in the vicinity of the flight guide RFID tags 43 to collect information necessary for the management of the structure 10 . The information collection RFID tags 41 may provide the collected information to the RFID reader 60 of the drone 50 .

The drone 50 includes an RFID reader 60 , and flies along the flight path of the flight guide RFID tag 43 read during flight, and manages the structure 10 . That is, the drone 50 manages the structure 10 while flying around the structure 10 based on the flight path information of the flight guide RFID tag 43 read by the RFID reader 60 .

The drone 50 may further include a safety checker 70 that performs a safety check of the structure 10 while flying around the structure 10 .

And the structure management system 100 according to the present embodiment may further include a drone controller 80 for controlling the flight of the drone 50 .

In general, the flight of the drone 50 is not only manually controlled using the drone controller 80, but also partially autonomous flight is possible in the outdoors based on GPS information. However, since GPS information cannot be used for the flight of the drone 50 in an environment where the reception rate of the GPS signal is low or poor, it is possible only in a manual method using the drone controller 80 .

However, when the manager controls the flight of the drone 50 only in a manual manner using the drone controller 80, a difference may occur in the management time of the structure 10 depending on the skill level related to the operation of the drone controller 80. can

In this embodiment, the RFID tag system 40 is used to control the flight of the drone 50 , and the structure 10 is managed through the flight control of the drone 50 . Due to this, the structure management can be stably performed regardless of the skill level related to the operation of the drone controller 80 of the manager.

Since the flight guide RFID tag 43 attached to the structure 10 provides a flight path for the drone 50 to check the safety of the structure 10, the reception rate of the GPS signal is lowered or the GPS signal cannot be received. It is also possible to stably perform a safety check on the structure 10 .

In addition, since the flight guide RFID tag 43 attached to the structure 10 provides a flight path for the drone 50 to check the safety of the structure 10, even managers who are not able to control the drone 50 skillfully Management of the structure 10 can be performed stably.

In this embodiment, since structure management is performed using the drone 50 equipped with the RFID reader 60 , it is possible to prevent structure management errors due to the administrator's mistake. In this way, the drone 50 equipped with the RFID reader 60 can replace many of the roles of the manager.

The structure management system 100 according to this embodiment will be described in detail as follows.

Here, the structure 10 includes, but is not limited to, buildings, apartments, dams, bridges, bridges, and the like.

As described above, the RFID tag system 40 may include flight guidance RFID tags 43 and information collection RFID tags 41 . The RFID tag system 40 is installed on the outer wall of the structure 10 .

The flight guide RFID tags 43 are installed at a plurality of points of the structure 10 in consideration of the flight path of the drone 50 . That is, so that the drone 50 can perform a safety check on the structure 10 while flying, the flight guide RFID tags 43 are installed at a plurality of points that can provide flight path information of the drone 50 . The flight guide RFID tag 43 provides flight path information that can fly with the flight guide RFID tag 43 adjacent to the flight guide.

The flight path information includes flight direction information and may further include flight speed information. When the flight speed of the drone 50 is a set speed, the unexplored route information may not include flight speed information. The flight path information may further include identification information of the flight guide RFID tag 43 to be read next.

These flight guidance RFID tags 43 may include a plurality of turning point RFID tags 45 and at least one intermediate RFID tag 47 .

The turning point RFID tag 45 is installed at a turning point in the flight path of the drone 50 , and provides change information on the current flight direction of the drone 50 . For example, the turning point RFID tags 45 may provide information on vertical, horizontal, or rotational flight of the drone 50 capable of changing the current flight direction.

In addition, the intermediate RFID tag 47 is installed between the turning point RFID tags 45 , and may provide maintenance information on the current flight direction of the drone 50 . For example, among the turning point RFID tags 45 , when the distance between the turning point RFID tags 45 is greater than a certain distance, an error may occur in the stable flight guidance of the drone 50 based on tag information. Therefore, by locating the intermediate RFID tag 47 between the turning point RFID tags 45 , it is possible to induce stable flight of the drone 50 .

Of course, when the drone 50 is capable of stable flight regardless of the distance between the turning point RFID tags 45 , the intermediate RFID tag 47 may not be used.

The information collection RFID tags 41 are installed in the vicinity of the flight guide RFID tags 43 to collect information necessary for the management of the structure 10 . At this time, the drone 50 reads the information collection RFID tags 41 located in the vicinity of the flight guide RFID tags 43 while flying along the flight path provided by the flight guide RFID tags 43 to form the structure 10 . Collect information necessary for management.

Information necessary for management of the structure 10 may include internal information about the structure 10 itself and environmental information around the structure 10 . For example, the internal information may include temperature, pollution level, vibration intensity, and the like. The environmental information may include temperature, humidity, sunlight, weather, and the like. That is, the information collection RFID tags 41 include sensors capable of collecting information necessary for the management of the structure 10 .

The drone 50 performs structure management while flying close to the outer wall of the structure 10 based on the flight path read from the flight guide RFID tags 43 .

The drone 50 is equipped with an RFID reader 60 and can perform reading of the information collection RFID tag 41 while flying according to the flight path read from the flight guide RFID tags 43 . The RFID reader 60 installed in the drone 50 is installed at a position where the structure 10 can be directly viewed. The drone 50 may have a position adjusting member so that the RFID reader 60 always faces the structure 10 .

When the intensity of the signal read from the flight guide RFID tag 43 is greater than or equal to a certain intensity, the RFID reader 60 of the drone 50 performs flight according to the flight path information of the read flight guide RFID tag 43 . That is, the RFID reader 60 of the drone 50 may read the flight guide RFID tags 43 around the drone 50 as a center. When the strength of the signal read from the flight guide RFID tag 43 is less than a certain strength, the RFID reader 60 of the drone 50 ignores the read signal, thereby suppressing the drone 50 from departing from the set flight path. can do. Here, the signal strength may be the RSSI signal strength received from the flight guide RFID tag 43 .

The RFID reader 60 of the drone 50 may provide the flight route information of the previously read flight guide RFID tag 43 and identification information of the flight guide RFID tag 43 to be read next. Therefore, even if the intensity of the signal read from the flight guide RFID tag 43 by the RFID reader 60 of the drone 50 is greater than or equal to a certain intensity, the corresponding flight guide RFID tag 43 reads the next flight guide RFID tag ( 43) may be further performed.

The drone 50 is provided with a safety checker 70 , and while flying according to the flight path read from the flight guide RFID tags 43 , the safety checker 70 manages the structure 10 , that is, safety check can be performed.

Here, the safety checker 70 may include a camera or a non-destructive tester. That is, the camera may collect information on the appearance of the structure 10 . The photographed information includes moving image information or still image information. The non-destructive tester may apply a non-destructive test method applicable to the structure 10 to perform a non-destructive test on the structure 10 and collect non-destructive test information.

And the drone controller 80 transmits a control signal to the drone 50 and transmits a flight command to the drone 50 for structure management. The drone controller 80 may be a dedicated controller or may use a smart phone possessed by an administrator. The drone controller 80 may start and end the flight of the drone 50 .

The drone controller 80 may receive information collected by the RFID reader 60 or the safety checker 70 from the drone 50 .

As described above, the structure management by the drone 50 in the structure management system 100 according to the present embodiment may be performed as shown in FIGS. 2 and 3 . Here, the structure 10 may be a building.

Referring to FIG. 2 , when the management of one surface of the structure 10 is performed, the flight guide RFID tags 43 have a square wave shape so that the drone 50 performs management of the structure 10 while flying in a square wave shape. As a result, it may be installed on one surface of the structure 10 .

That is, the drone 50 can perform the management of the structure 10 while flying in a square wave shape that proceeds in the X-axis direction while moving up and down in the Y-axis direction.

The flight guidance RFID tags 43 may have a turning point RFID tag 45 disposed at the top and bottom of the structure 10 , respectively, and an intermediate RFID tag 47 may be disposed between the turning point RFID tags 45 .

Before starting the management of the structure 10, the drone 50 may be located at the zero point (O) of the XY axis. An administrator may position the drone 50 at the zero point (O) of the XY axis. Alternatively, the drone controller 70 may fly the drone 50 to position it at the zero point O of the XY axis.

Next, when receiving a start command for structure management of the drone 50 by the drone controller 70 , the RFID reader 60 of the drone 50 is a turning point RFID installed at the position of the structure 100 corresponding to the zero point (O). The flight starts by reading the flight path information from the tag 45. For example, the flight path information may include information for commanding flight in the Y-axis direction.

After the drone 50 starts flying, the drone 50 performs flight based on the flight path information read from the flight guide RFID tags 43 without the control of the drone controller 70 .

In this case, the drone 50 may manage the structure 10 with the safety checker 70 during flight, that is, perform a safety check.

Alternatively, the drone 50 may be installed in the vicinity of the flight guide RFID tags 43 during flight and read the information collection RFID tags 41 to collect information necessary for the management of the structure 10 .

When the drone 50 completes flight based on the flight path information read from the flight guide RFID tags 43 , the drone 50 may transmit structure management completion information to the drone controller 70 .

In addition, the drone controller 70 may turn off the driving of the drone 50 when receiving information on completion of structure management.

Meanwhile, although FIG. 2 discloses an example in which the drone 50 flies in a manner that proceeds in the X-axis direction while moving up and down in the Y-axis direction, it is not limited thereto. For example, the drone 50 may perform structure management while flying in one of the Y-axis and ??Y-axis while moving left and right in the X-axis direction.

Referring to FIG. 3 , when the structure 10 is a hexahedral building, the drone 50 may manage four sides of the structure 10 .

In this case, the flight of the drone 50 on each side may be performed as shown in FIG. 2 . In addition, the turning point RFID tag 45 installed at the intersection of each surface provides information on rotational flight that rotates the flight direction on the current surface to the flight direction of the neighboring surface. For example, the drone 50 may perform management on four sides of the structure while flying in the Y-axis, X-axis, -Y-axis and ??X-axis directions while moving up and down in the ㅁ-axis direction. The upward movement (U) in the Z-axis direction is indicated by "O", and the downward movement (D) in the -Z-axis direction is indicated by "X".

That is, the flight of the drone 50 in FIG. 3 proceeds in the same manner as the flight of the drone 50 in FIG. 2 when it is assumed that four sides are spread out in a plane. However, since the loading frame 20 of FIG. 3 includes a point where the planes intersect 90 degrees, the turning point RFID tag 45 is used as flight path information to rotate the flight direction by 90 degrees to fly at the point where the planes intersect. Provides information about rotational flight.

In this case, the drone 50 may manage the structure 10 with the safety checker 70 during flight, that is, perform a safety check.

Alternatively, the drone 50 may be installed in the vicinity of the flight guide RFID tags 43 during flight and read the information collection RFID tags 41 to collect information necessary for the management of the structure 10 .

Meanwhile, in FIG. 2 , the drone 50 manages one side of the structure 10 , and in FIG. 3 , an example of managing four sides of the structure 10 is disclosed, but the present invention is not limited thereto. For example, the drone 50 may manage two, three, or a plurality of surfaces of the structure 10 .

Alternatively, the structure 10 may include a curved surface. In this case, it goes without saying that the flight guide RFID tag 43 may provide flight path information so that the drone 50 can fly to correspond to the curved surface.

As described above, since the structure management system 100 according to this embodiment provides information necessary for the flight of the drone 50 through the flight guide RFID tags 43 , the structure 10 is managed using the drone 50 . so it can be done smoothly.

On the other hand, the embodiments disclosed in the present specification and drawings are merely presented as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

10: structure
40: RFID tag system
41: information gathering RFID tag
43 : Flight Guidance RFID Tag
45 : Turning Point RFID Tag
47: Intermediate RFID tag
50 : drone
60: RFID reader
70: safety checker
80: drone controller
100: structure management system

Claims (10)

Flight guidance RFID tags installed at multiple points of the structure and providing flight path information of a drone equipped with an RFID reader; and
the drone having the RFID reader and flying along the flight path of the flight guide RFID tag read during flight and managing the structure;
A structure management system using a drone equipped with an RFID reader comprising a. According to claim 1, wherein the drone,
a safety checker for performing a safety check of the structure;
Structure management system using a drone having an RFID reader, characterized in that it further comprises. 3. The method of claim 2,
The safety checker is a structure management system using a drone having an RFID reader, characterized in that it includes a camera or a non-destructive tester. According to claim 1,
The flight guide RFID tags are installed at a plurality of points of the structure along the flight path of the drone, and provide flight path information capable of flying with neighboring flight guide RFID tags. Structure management system using 5. The method of claim 4, wherein the flight guidance RFID tags are:
a plurality of turning point RFID tags installed at turning points in the flight path of the drone and providing change information on the current flight direction of the drone;
Structure management system using a drone equipped with an RFID reader, characterized in that it comprises a. 6. The method of claim 5,
The turning point RFID tags are a structure management system using a drone having an RFID reader, characterized in that it provides information about the vertical, horizontal, or rotational flight of the drone. The method of claim 5, wherein the flight guidance RFID tags are:
at least one intermediate RFID tag installed between the turning point RFID tags and providing maintenance information on the current flight direction of the drone;
Structure management system using a drone having an RFID reader, characterized in that it further comprises. According to claim 1,
When the intensity of the signal read from the flight guide RFID tag is greater than or equal to a certain intensity, the RFID reader of the drone performs flight according to the flight path information of the read flight guide RFID tag. used structure management system. According to claim 1,
a drone controller that transmits a control signal to the drone and transmits a flight command to the drone for structure management;
Structure management system using a drone having an RFID reader, characterized in that it further comprises. According to claim 1,
It further includes; an information collection RFID tag installed in the vicinity of the flight guide RFID tags to collect information necessary for the management of the structure,
The drone collects information necessary for managing the structure by reading the information collection RFID tags located in the vicinity of the flight guide RFID tags while flying along the flight path provided by the flight guide RFID tags. A structure management system using a drone equipped with an RFID reader.

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