JP2020079969A - Wanderer detection device - Google Patents

Abstract

To provide a wanderer detection device capable of continuously detecting a wanderer for a long period and also detecting a wanderer in a wide range.SOLUTION: A wanderer detection device is the wanderer detection device for detecting a wanderer M by using a vehicle 10. The wanderer detection device includes: a transmitter 2 to be mounted on a wanderer M; a receiver 11 arranged in the vehicle 10 so as to receive identification information that is to be transmitted from a transmitter 2 to identify the transmitter 2; a power source arranged in the vehicle 10 so as to supply power of the vehicle 10 to the receiver 11; and position information acquisition means for acquiring position information of the vehicle 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wandering person detection device for detecting a wandering person.

  In recent years, particularly in elderly people, the number of dementia patients is increasing, and one of the symptoms of dementia is loitering. With the aging society, the number of wandering people is also increasing. It is difficult for wanderers to return to their homes on their own, so it is necessary for not only caregivers of wanderers but also society as a whole to quickly find wanderers.

  Japanese Unexamined Patent Application Publication No. 2016-110617 includes a transmitter mounted on a wandering person, a plurality of beacon communication devices capable of receiving the radio waves of the transmitter, and a main control computer capable of communicating with the beacon communication device. A location search system for wandering elderly people is described. Beacon communication devices include smartphones and mobile communication devices owned by local residents. In this position search system, the beacon communication device receives an ID capable of identifying the transmitter from the transmitter attached to the wandering person targeted for the search. Then, the beacon communication device transmits the ID and self position information to the main control computer.

  When the main control computer receives the ID and the self-position information of the beacon communication device, the main control computer outputs a signal indicating that the transmitter has been found to the display of the operator, the terminal of the caregiver of the wandering person, or the like. As a result, the operator, the caregiver of the wandering person, and the like can search for the wandering person. Further, by registering the ID and the wandering person's face photograph in association with each other, it is possible to transmit the face photograph to the beacon communication device that has received the ID and confirm the identity of the wandering person.

JP, 2016-110617, A

  In the position search system described above, smartphones and mobile communication devices owned by local residents are used as beacon communication devices. As described above, when a mobile terminal such as a smartphone is used for searching for a wandering person, it is assumed that the battery of the mobile terminal runs out, for example, in about one or two days. Since the battery of the mobile terminal has a relatively short period of time, there is a problem that the detection of the wandering person cannot be continued when the search for the wandering person takes several weeks, for example. In the position search system described above, mobile terminals of local residents are used as beacon communication devices. Therefore, there is a problem that the wandering people cannot be detected over a wide area because the places where the local residents are located are limited.

  It is an object of the present invention to provide a wandering person detection device capable of continuously detecting a wandering person for a long period of time and capable of detecting a wandering person over a wide range.

  A wandering person detecting device according to the present invention is a wandering person detecting device for detecting a wandering person using a vehicle, a transmitter mounted on the wandering person, and a transmitter provided in the vehicle and transmitted from the transmitter. A receiver for receiving identification information for identifying the vehicle, a power supply provided in the vehicle for supplying electric power of the vehicle to the receiver, and position information acquisition means for acquiring position information of the vehicle.

  This wandering person detection device detects a wandering person using a vehicle. That is, in this wandering person detection device, a receiver for receiving the identification information transmitted from the transmitter mounted on the wandering person is provided in the vehicle, and a power supply for supplying power to the receiver is also provided in the vehicle. There is. Therefore, since the electric power of the vehicle can be used as the power source of the receiver, it is possible to avoid the situation where the battery of the receiver runs out in a short period of time. Therefore, even if the search for the wandering person takes several weeks, the wandering person can be continuously detected. In addition, in this wandering person detection device, a receiver and a power source are provided in the vehicle, and the vehicle moves over a wider area than a pedestrian or the like. Therefore, the wandering person can be detected over a wide range, so that the wandering person can be efficiently searched.

  Further, the wandering person detection device described above may include a control unit that controls the power supply of the power supply. In this case, for example, when the power supply for supplying power to the receiver is likely to be cut off, the power supply to the receiver by the power supply can be set to the power saving mode or the power supply can be stopped. Therefore, the power supply from the power source to the receiver can be performed for a longer period of time, and the detection of the wandering person can be continued for a longer period of time.

  Further, the above-mentioned wandering person detection device is provided with a camera provided in the vehicle, and a transmission unit that transmits the captured image of the camera to the outside of the vehicle together with the position information of the vehicle acquired by the position information acquisition means. Good. In this case, since the camera can photograph the wandering person around the vehicle, the state of the wandering person can be grasped.

  Further, the receiver may be arranged on a mirror of the vehicle. In this case, the mirror of the vehicle can be effectively used as a place where the receiver is arranged.

  According to the present invention, a wandering person can be continuously detected for a long period of time, and a wandering person can be detected over a wide range.

It is a block diagram showing a wandering person detection device concerning an embodiment. (A) is a side view which shows a wandering person and a vehicle. (B) is a plan view showing a vehicle. 3 is a flowchart showing an example of a wandering person detection method using the wandering person detection device of FIG. 1. It is a conceptual diagram which shows the vehicle and wandering person provided with the wandering person detection apparatus of FIG.

  Hereinafter, an embodiment of a wandering person detection device according to the present invention will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements will be denoted by the same reference symbols, without redundant description.

  As shown in FIG. 1 and FIG. 2, the wandering person detection device 1 according to the present embodiment goes out by using a transmitter 2 worn by a wandering person M and a receiver 11 mounted on a vehicle 10. This is a system for detecting the position of the wandering person M. The prowler M is, for example, an elderly person or a child. The wandering person M is supposed to wander around any place such as a commercial area, a residential area, an agricultural land or a mountain area. However, since the vehicle 10 is traveling in almost any place, the wandering person M can be detected by receiving the radio wave of the transmitter 2 using the receiver 11 of any vehicle 10.

  The wandering person detection device 1 includes the transmitter 2 and the receiver 11 described above, the power supply 12 of the vehicle 10 that supplies power to the receiver 11, the control unit 13 that controls the supply of power to the receiver 11, and the vehicle. A position information acquisition unit 14 that acquires the position information of the vehicle 10, a camera 15 provided in the vehicle 10, a transmission unit 16 that transmits information to the outside of the vehicle 10, and a position specifying unit 20 that specifies the position of the wanderer M. And The transmitter 2, the vehicle 10 and the position specifying means 20 can communicate with each other.

  The transmitter 2 is, for example, a beacon attached to the wandering person M. Since the transmitter 2 is a beacon, the size of the transmitter 2 and the battery consumption of the transmitter 2 can be reduced to such an extent that the wandering person M does not care. The transmitter 2 periodically transmits identification information (ID information) for identifying the transmitter 2 by BLE (Bluetooth (registered trademark) Low Energy), for example. When the transmitter 2 is a beacon, the transmitter 2 has only the function of transmitting the identification information, and thus the configuration can be simplified. The communicable range of the transmitter 2 is, for example, 400 m or more and 500 m or less, but can be appropriately changed.

  The transmitter 2 may be a device other than a beacon, and may be, for example, a remote IC card (Integrated Circuit card). In this case, the transmitter 2 enables long-distance communication over several meters using the microwave frequency band. The transmitter 2 may have an RFID tag that can communicate with the receiver 11 of the vehicle 10. That is, the transmitter 2 only needs to be able to transmit the above-mentioned identification information to the receiver 11.

  The receiver 11 is built in each of the two side mirrors 17 of the vehicle 10, for example. The side mirror 17 is, for example, a door mirror, but may be a fender mirror. The receiver 11 receives the identification information of the transmitter 2 from the transmitter 2 located in the communicable range. The receiver 11 is, for example, a BLE beacon receiver that receives identification information from the transmitter 2 that is a BLE beacon.

  The power supply 12 is, for example, a battery of the vehicle 10 that supplies electric power to the receiver 11. The control unit 13 monitors the remaining battery level of the power supply 12. As an example, the control unit 13 switches the power supply to the receiver 11 to the power saving mode when the battery remaining amount of the power supply 12 becomes equal to or less than the first threshold value (for example, 20%). Further, the control unit 13 switches the power supply to the receiver 11 to the super power saving mode when the remaining battery level of the power source 12 becomes equal to or less than a second threshold value (for example, 10%) that is less than the first threshold value. Alternatively, the power supply to the receiver 11 may be stopped.

  The above-mentioned first threshold value and second threshold value can be changed as appropriate. Further, the number of thresholds for switching to the power saving mode or the like does not have to be two, and may be one or three or more. The control unit 13 may gradually reduce the power supplied to the receiver 11 according to the remaining battery level of the power supply 12, or may intermittently supply the power. In this way, the mode in which the control unit 13 controls the power supply of the power supply 12 can be changed as appropriate.

  The position information acquisition unit 14 is, for example, a GPS for car navigation of the vehicle 10. In this case, the position information acquisition unit 14 acquires the vehicle position information of the vehicle 10 by receiving the radio wave from the satellite. The camera 15 shoots the surroundings of the vehicle 10 when receiving the identification information from the transmitter 2, for example. The camera 15 may be a camera mounted on a drive recorder. As an example, the target captured by the camera 15 is a landscape of the road on which the vehicle 10 is traveling. In addition, when the loitering person M is in a location visible from the vehicle 10, the loitering person M may be a subject to be captured by the camera 15.

  The transmission unit 16 transmits the position information of the vehicle 10 to the public line W such as the Internet together with the identification information described above. For example, the transmission unit 16 transmits the vehicle position information of the vehicle 10 acquired by the position information acquisition unit 14 to the public line W. In addition, the transmission unit 16 may transmit the captured image captured by the camera 15 to the public line W.

  Further, the transmission unit 16 is configured to transmit time information including the current time, weather information including temperature and weather, safety information including the degree of congestion of people and vehicles around the vehicle 10, the state of the wandering person M (the wandering person M Urgency information including whether or not the person has fallen down) may be transmitted. As described above, the transmission unit 16 has a function of transmitting the information acquired by the vehicle 10 to the outside of the vehicle 10.

  The position specifying means 20 is provided with, for example, identification information data and a judgment program, and is composed of a server connected to the public line W. The position specifying means 20 can communicate with the vehicle 10 via the public line W. The position specifying means 20 is provided, for example, at the home of the wandering person M or at a police station in the area where the vehicle 10 (transmitter 2) is located. When the position specifying means 20 is provided at the home of the loitering person M, a caregiver or the like of the loitering person M can find the loitering person M.

  Further, when the location specifying means 20 is provided in a facility in the area such as a police station, the wandering person M can be rescued with the help of the facility. The position identifying means 20 identifies the position of the wandering person M by receiving the position information from the vehicle 10 through the public line W.

  Next, a wandering person detection method for detecting the position of the wandering person M using the wandering person detection device 1 will be described with reference to FIG. FIG. 3 is a flowchart showing an example of the wandering person detection method according to the present embodiment.

  First, as mentioned above, the wandering person M is equipped with the transmitter 2, and the identification information of the transmitter 2 is transmitted from the transmitter 2 at any time. Further, the receiver 11 is supplied with power from the power supply 12 of the vehicle 10. In this state, the receiver 11 of the vehicle 10 existing near the wanderer M receives the identification information of the transmitter 2 from the transmitter 2 (step S1).

  When the receiver 11 receives the identification information of the transmitter 2, the position information acquisition unit 14 acquires the position information of the vehicle 10 at the time when the identification information is received. Further, the camera 15 photographs the surroundings of the vehicle 10 (step S2). The transmission unit 16 transmits, for example, the identification information of the transmitter 2, the position information of the vehicle 10, the traveling direction information of the vehicle 10, the reception time of the identification information, the captured image captured by the camera 15, and the like to the public line W. It is transmitted (step S3). The transmission unit 16 does not have to transmit the image captured by the camera 15 to the public line W.

  After step S3, the control unit 13 may detect the remaining battery level of the power supply 12 (step S4). The control unit 13 switches the power supply to the receiver 11 to the power saving mode when the remaining battery level of the power source 12 is equal to or less than the first threshold value (step S5). Further, when the battery remaining amount of the power source 12 is equal to or less than the second threshold value (YES in step S6), the control unit 13 switches the power supply to the receiver 11 to the super power saving mode or sends the power to the receiver 11 to the receiver 11. The power supply may be stopped (step S7).

  The processes from step S4 to step S7 may be executed by an interrupt process performed at regular time intervals. In addition, the same interrupt processing is continued even when the power saving mode, the super power saving mode, or the power supply is stopped, and when the remaining battery capacity exceeds the first threshold value, the return operation to the normal mode is performed. You can go.

  The position specifying means 20 specifies the position of the wandering person M from the position information of the vehicle 10 or the image captured by the camera 15. In this way, the position identifying means 20 acquires the position information of the vehicle 10 existing around the wandering person M, whereby the position of the wandering person M can be detected (step S8). After that, the position identifying means 20 determines the state of the wandering person M obtained from the photographed image or the like, or the method of protecting the wandering person M, and wanders to the protection center or the like equipped with the optimal wandering person M protecting means. You may contact us with your protection request.

  In the present embodiment, information on the traveling direction of the vehicle 10 may be acquired in addition to the position information on the vehicle 10. By acquiring the information on the traveling direction of the vehicle 10 in this manner, the position identifying means 20 can grasp the approximate position of the wandering person M even if the information is from one vehicle 10. Of course, when a plurality of vehicles 10 transmit the same identification information of the transmitter 2 in a short period of time, the position of the wandering person M can be more accurately grasped from the positional relationship of the vehicles 10. The position identifying means 20 may predict the moving direction of the wandering person M by analyzing the change in the position information transmitted from the vehicle 10 based on the reception time of the identification information.

  Next, operation effects of the wandering person detection device 1 according to the present embodiment will be described.

  The wandering person detection device 1 detects the wandering person M using the vehicle 10. That is, in the wandering person detection device 1, the vehicle 11 is provided with the receiver 11 that receives the identification information transmitted from the transmitter 2 attached to the wandering person M, and the power supply 12 that supplies power to the receiver 11 is provided. Is also provided in the vehicle. Therefore, since the electric power of the vehicle 10 can be used as the power source of the receiver 11, it is possible to avoid the situation where the battery of the receiver 11 runs out in a short period of time.

  Therefore, even if the search for the wandering person M takes several weeks, the wandering person M can be continuously detected. Further, in the wandering person detection device 1, the receiver 11 and the power source 12 are provided in the vehicle 10, and the vehicle 10 moves over a wide range as compared with a pedestrian or the like. Therefore, the wandering person M can be detected over a wide range, so that the wandering person M can be searched efficiently.

  Specifically, as shown in FIG. 4, when there are a plurality of vehicles 10 in the vicinity of the wandering person M in the residential area, the receiver 11 of each vehicle 10 receives identification information from the transmitter 2 of the wandering person M. When the vehicle information is received, the position information of the vehicle 10 is transmitted to the public line W from each of the vehicles 10 that have received the identification information.

  Since the position specifying means 20 acquires the position information from each of the vehicles 10 located around the wandering person M, the position of the wandering person M can be easily grasped. In this way, since the wandering person M is fitted with the transmitter 2 and the receivers 11 of the vehicles 10 existing everywhere receive the identification information of the transmitter 2, the wandering person M can be searched for in a wider range. It can be carried out. Therefore, the wandering person M can be detected efficiently and reliably.

  Moreover, since the wandering person detection apparatus 1 detects the wandering person M using the vehicle 10, the base station for detecting the wandering person M can be unnecessary. Therefore, the cost of installing the base station can be suppressed.

  Further, the wandering person detection device 1 includes a control unit 13 that controls the power supply of the power supply 12. Therefore, for example, when the power supply 12 that supplies power to the receiver 11 is likely to be cut off, the power supply by the power supply 12 to the receiver 11 can be set to the power saving mode or the power supply can be stopped. Therefore, since the power supply from the power source 12 to the receiver 11 can be performed for a longer period of time, the detection of the wandering person M can be continued for a longer period of time. Further, even if the engine of the vehicle 10 is turned off and the vehicle is parked, the receiver 11 can be continuously operated if the battery level of the power source 12 is large. Therefore, the probability of discovering the wandering person M can be increased.

  Further, the wandering person detection device 1 transmits a camera 15 provided in the vehicle 10 and an image captured by the camera 15 to the outside of the vehicle 10 together with the position information of the vehicle 10 acquired by the position information acquisition means 14. 16 are provided. Therefore, the photographed image photographed by the camera 15 is transmitted by the transmitting unit 16 together with the position information of the vehicle 10, so that the situation around the vehicle 10 can be photographed and transmitted to the outside of the vehicle 10. Therefore, since the wandering person M around the vehicle 10 can be photographed, the state of the wandering person M (emergency level of rescue of the wandering person M, etc.) can be grasped.

  Further, the receiver 11 is arranged on the side mirror 17 of the vehicle 10. In this case, the side mirror 17 of the vehicle 10 can be effectively used as a place where the receiver 11 is arranged. Furthermore, since the side mirror 17 is a portion protruding from the vehicle 10, there is an advantage that it is easy to receive radio waves from the transmitter 2. The receiver 11 is arranged on each of the side mirrors 17 on both sides of the vehicle 10. Therefore, the identification information of the transmitter 2 is received by the two receivers 11 arranged on both sides of the vehicle 10, and one vehicle 10 can receive the identification information at two locations. Further, by providing the two receivers 11, even if one of the two receivers 11 does not receive the identification information, the other receiver 11 receives the identification information so that the wandering person M is detected. Can be continued. Therefore, the possibility of discovering the wandering person M can be further increased.

  Although the embodiment of the wandering person detection apparatus according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and is modified within a range not changing the gist described in each claim, or It may be applied to other things. That is, each configuration of the wandering person detection device can be appropriately changed without changing the gist of each claim.

  For example, in the above-described embodiment, the example in which the receiver 11 is incorporated in each of the two side mirrors 17 of the vehicle 10 has been described. However, the receiver 11 may be attached to only one of the two side mirrors 17. For example, the receiver 11 may be attached to the side mirror 17 on the sidewalk side (left side), and in this case, the wandering person M on the sidewalk can be detected with high accuracy. Further, the receiver 11 may be attached to a mirror other than the side mirror 17, such as a room mirror or a rearview mirror, or may be attached to equipment other than the mirror.

  For example, in the above-described embodiment, an example has been described in which the position specifying unit 20 can communicate with the vehicle 10 via the public line W, but the position specifying unit 20 can communicate with the vehicle 10 via a dedicated line. It may have been done. That is, the communication means between the position specifying means 20 and the vehicle 10 can be changed as appropriate.

  Moreover, in the above-described embodiment, the example in which the control unit 13 that controls the power supply of the power supply 12 is provided in the vehicle has been described. However, the control unit 13 may be provided outside the vehicle, and the position of the control unit 13 is not particularly limited.

  Further, in the above-described embodiment, the example in which the position specifying means 20 is provided outside the vehicle 10 has been described, but the place where the position specifying means 20 is provided is not particularly limited. For example, the position specifying means 20 may be provided inside the vehicle 10. In this case, the transmitter 16 that transmits information to the outside of the vehicle 10 can be omitted. For example, in the inside of the vehicle 10, the occupant of the vehicle 10 can find the wandering person M by the position specifying means 20 notifying (displaying or outputting voice) that the radio wave of the transmitter 2 has been received.

DESCRIPTION OF SYMBOLS 1... Wanderer detection device, 2... Transmitter, 10... Vehicle, 11... Receiver, 12... Power supply, 13... Control part, 15... Camera, 16... Transmission part, 17... Side mirror (mirror), 20... Position Specific means, M...Wanderer, W...Public line.

Claims (4)

A wandering person detection device for detecting a wandering person using a vehicle,
A transmitter worn by the loitering person,
A receiver provided in the vehicle for receiving identification information for identifying the transmitter, which is transmitted from the transmitter;
A power supply that is provided in the vehicle and supplies electric power of the vehicle to the receiver;
Position information acquisition means for acquiring the position information of the vehicle,
A wanderer detection device. A control unit for controlling the power supply of the power source,
The wandering person detection device according to claim 1. A camera provided in the vehicle,
A transmission unit for transmitting the image captured by the camera to the outside of the vehicle together with the position information of the vehicle acquired by the position information acquisition means;
The wandering person detection device according to claim 1 or 2 provided with. The receiver is arranged in a mirror of the vehicle,
The wandering person detection device according to any one of claims 1 to 3.

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