JP2017142602A - Passage propriety determination system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide means of determining whether to allow a passerby to pass through a predetermined region without letting the passerby take trouble nor time.SOLUTION: A controller 12 specifies the position of a passerby in a region A1 on the basis of distance image data representing a three-dimensional shape of a body in the region A1 that the passerby moving from a space S1 to a space S2 passes through. Further, the controller 12 specifies the position of a radio communication device 11 that the passerby individually carries on the basis of radio wave intensity data transmitted from the radio communication device 11 as a response to request data transmitted respectively from transmission antennas 2041-1 to 2041-3 arranged at mutually different positions nearby the region A1. The controller 12 makes the passerby correspond to the radio communication device 11 on the basis of the position of the passerby and the position of the radio communication device 11. A passage propriety determination device 16 determines whether to allow the passerby to pass on the basis of data stored corresponding to the radio communication device 11 made to correspond to the passerby.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique for determining whether or not a passerby can pass.

  There are spaces such as stations, conference halls, office buildings, etc., where only persons with permits such as tickets, admission tickets and ID cards are allowed to enter and exit. In many cases, gates for restricting the passage of people who do not have a valid permit are arranged at the entrances and exits of these spaces.

  When traffic is restricted by the gate device, it is usually necessary for the passer-by to stop in front of the gate device and to have the gate device read a permit such as a ticket. In addition, when passers-by who want to enter or leave are concentrated at the same time, a queue is created on the upstream side of the gate device.

  Techniques for reducing or eliminating the disadvantages of the gate device as described above have been proposed. For example, in Patent Document 1, when a user's traffic is detected in a floor unit laid on a floor of a specific area of a station concourse, communication between the floor unit and the ticket gate information recording medium is performed, and the ticket gate information A free gate ticket gate system that confirms the validity of the recording medium and displays on the display unit of the floor unit that the user does not carry the ticket gate information recording medium or that the ticket gate information recording medium is valid / invalid. Proposed.

  According to the free gate ticket system described in Patent Document 1, it is not necessary to cause the gate device to read the ticket information recording medium when passing through the entrance / exit to the concourse of the station. In addition, no queue is created upstream of the gate device.

JP2013-152665A

  The free gate ticket gate system described in Patent Document 1 is configured by a large number of floor units laid out so as to cover the entire specific area. Each of these many floor units includes a control unit, a ticket gate information transmission / reception unit, a human body detection unit, and a display unit. In the free gate ticket gate system described in Patent Document 1, each floor unit determines whether or not the user can pass based on information read from a ticket gate information recording medium possessed by the user who rides on the own device. Therefore, the width of one floor unit needs to be narrow enough that a plurality of users cannot get on it at the same time. Therefore, the number of floor units to be provided in the free gate ticket gate system described in Patent Document 1 increases as the area of the specific area increases. Therefore, the free gate ticket gate system described in Patent Document 1 increases in cost as the area of the specific area increases.

  In view of the above background, the present invention provides a means for determining whether or not a passer-by can pass through a predetermined area in a method different from the technique described in Patent Document 1 without requiring time and effort of the passer-by. To do.

  In order to solve the above-described problem, the present invention individually identifies each position of a passerby within a predetermined area and each position of a wireless communication device within the predetermined area, and The passerby in the predetermined area is associated with the wireless communication device, and the passerby determines whether the passerby can pass based on the result of the association and information transmitted from each of the wireless communication devices. An availability determination system is provided as a first aspect.

  According to the passability determination system of the first aspect, it is determined whether or not a passerby can pass through a predetermined area without requiring time and effort of the passerby.

  In the passability determination system of the first aspect, a configuration in which notification according to the position of the passerby of the determination target and the determination result is performed may be adopted as the second aspect.

  According to the passability determination system of the second aspect, the person who has received the notification can know in which position the passerby is allowed or not allowed.

  In the second aspect of the passability determination system, a third configuration includes a light emitting device, and performs the notification by performing light emission in a mode according to the determination result at the position of the determination target passerby. It may be adopted as a mode of.

  According to the passability determination system of the third aspect, the passerby can visually check whether his / her pass is possible.

  In the passability determination system according to any one of the first to third aspects, a plurality of antennas are provided, and for each of the wireless communication devices, a radio wave transmitted from each of the plurality of antennas is received by the wireless communication device. The configuration in which the position of the wireless communication device is specified based on the strength of the wireless communication device or the strength at the time of reception of the radio wave transmitted from the wireless communication device by each of the plurality of antennas may be adopted as the fourth aspect. Good.

  In the passage permission determination system according to any one of the first to third aspects, a plurality of antennas are provided, and for each of the wireless communication devices, radio waves transmitted from the plurality of antennas reach the wireless communication device. The configuration in which the position of the wireless communication device is specified based on the time required until the time until the radio wave transmitted from the wireless communication device arrives at each of the plurality of antennas is You may employ | adopt as an aspect.

  According to the passage permission / prohibition determination system of the fourth or fifth aspect, the position of the wireless communication device is specified by installing a plurality of antennas.

  In the traffic permission determination system according to the fourth or fifth aspect, an antenna that receives the information transmitted from each of the wireless communication devices by using a radio wave having a frequency different from a frequency of a radio wave transmitted or received by the plurality of antennas. The structure of comprising may be adopted as the sixth aspect.

  According to the passability determination system of the sixth aspect, by using radio waves having a frequency suitable for each of transmission / reception of information and identification of the position of the wireless communication device, it is determined whether or not it is possible to pass at high speed or with high accuracy. Is called.

  The passability determination system according to any one of the first to sixth aspects includes a distance image sensor, and the position of each passerby is specified based on distance image data measured by the distance image sensor. You may employ | adopt as a 7th aspect.

  According to the passability determination system of the seventh aspect, the position of the passerby is specified by installing the distance image sensor.

  In the passability determination system according to the seventh aspect, the characteristics of each body of the passer-by are specified based on the distance image data measured by the distance image sensor, and each passer-by of the passer-by is determined based on the specified characteristics. A configuration of determining whether or not it is possible may be adopted as the eighth aspect.

  According to the passability determination system of the eighth aspect, for example, even when the passability changes according to the body characteristics (for example, the height) of the passerby, the determination of the passability is appropriately performed.

  The passability determination system according to any one of the first to eighth aspects includes an imaging device that images the passerby, and associates each image of the passerby imaged by the imaging device with the determination result. , May be adopted as the ninth aspect.

  According to the passability determination system of the ninth aspect, a passerby who has made an illegal pass can be specified by an image.

  In the passability determination system according to any one of the first to ninth aspects, for each of the wireless communication devices, information corresponding to a result of the determination regarding a passerby associated with the wireless communication device is stored in the wireless communication device. The tenth aspect may be employed as the tenth aspect.

  According to the passability determination system of the tenth aspect, a passer-by can know whether or not his / her pass is possible via a wireless communication device carried by himself / herself.

The figure which showed the whole structure of the passability determination system concerning one Embodiment. The figure for demonstrating the distance image data produced | generated by the distance image sensor concerning one Embodiment. The figure for demonstrating the distance image data produced | generated by the distance image sensor concerning one Embodiment. The figure which showed the structure of the radio | wireless communication apparatus concerning one Embodiment. The figure which showed the structure of the control apparatus concerning one Embodiment. The figure which illustrated the data composition of the passer-by table concerning one embodiment. The figure which illustrated the passerby's occupation area which the coordinate data group stored in the passerby table concerning one embodiment shows. The figure which illustrated the passerby's occupation area which the coordinate data group stored in the passerby table concerning one embodiment shows. The figure which illustrated the data composition of the device table concerning one embodiment.

[Embodiment]
Hereinafter, a passage permission / inhibition determination system 1 according to an embodiment of the present invention will be described. FIG. 1 is a diagram showing an overall configuration of a passability determination system 1. In the example of FIG. 1, the passability determination system 1 is used to determine whether a passerby can pass from the space S1 to the space S2. The space S1 and the space S2 are partitioned by the partition P1 and the partition P2. An entrance E through which passers-by can pass is formed between the partition P1 and the partition P2.

  In the space S1, a partition P3 and a partition P4 that guide passers-by to the entrance E are installed. The partition P3 and the partition P4 are installed in parallel to each other, and a region A is formed between them. Accordingly, passers-by from the space S1 to the space S2 always pass through the area A. Hereinafter, as shown in FIG. 1, a situation is assumed in which three persons, a passerby X, a passerby Y, and a passerby Z head from the space S1 to the space S2. In addition, hereinafter, when referring to the upstream side and the downstream side in the region A, they mean the upstream side and the downstream side in the passing direction of passers-by.

  The passability determination system 1 includes a wireless communication device 11 that is carried by each passerby. The wireless communication device 11 stores a device ID, which is an identifier for identifying the device itself from the other wireless communication device 11, and plays a role of an electronic passage permit by transmitting the device ID. Thus, all passersby should carry their own wireless communication device 11, but there may be passersby who do not carry the wireless communication device 11. Hereinafter, when the wireless communication devices 11 carried by each passerby are distinguished from each other, the passerby identification character is added to the end of the wireless communication device 11 carried by the passerby X like the wireless communication device 11X. Further, hereinafter, as shown in FIG. 1, the passerby X carries the wireless communication device 11X, and the passerby Y carries the wireless communication device 11Y, but the passerby Z carries the wireless communication device 11. Assume that the situation is not.

  Further, the passability determination system 1 includes a control device 12 that performs various controls for notifying passers of passability, a distance image sensor 13 that generates distance image data for specifying the location of the passers, A spotlight array 14 that emits light indicating whether or not a person can pass, an imaging device 15 that captures a passerby to record the appearance of the passer-by, and a device ID received by the control device 12 from the wireless communication device 11 And a passability determination device 16 that is a server device that determines whether or not a passerby carrying the wireless communication device 11 can pass from the space S1 to the space S2.

  The distance image sensor 13, the spotlight array 14, and the imaging device 15 are connected for communication with the control device 12 via a communication cable, for example, and perform data communication with the control device 12. Further, the passability determination device 16 is connected to the control device 12 via a communication network, for example, and performs data communication with the control device 12. In addition to the passage permission determination system 1, the passage permission determination device 16 performs data communication with a number of passage permission determination systems having the same configuration as the passage permission determination system 1, and each of the passage permission determination systems. It is determined whether or not a passerby can pass in the place where the is installed.

  As shown in FIG. 1, the distance image sensor 13 is disposed above the upstream side of the region A, and generates distance image data of the region A1 that is an upstream region of the region A. FIG. 2 is a diagram for explaining distance image data generated by the distance image sensor 13. In the example of FIG. 2, an object J1 having a height of H1 and an object J2 having a height of H2 are arranged in the area A1. Since the object J2 is placed on the object J1, the height from the floor to the upper surface of the object J2 is (H1 + H2). The distance image sensor 13 is installed at a position where the height from the floor is H0.

  The distance image data is a collection of pixel data arranged on a two-dimensional plane, like normal image data. However, while the pixel data of normal image data indicates the density of each of the one or three primary colors, the pixel data of the distance image data is obtained from the height of the distance image sensor from the object at the position corresponding to the pixel. Indicates the distance (depth) to the height of the surface.

  The distance image data generated by the distance image sensor 13 in the state of FIG. 2 is data as shown in FIG. The pixel data corresponding to the pixels in the area B1 shown in FIG. 3 indicates H0 that is the distance from the height of the distance image sensor 13 to the floor. Further, the pixel data corresponding to the pixels in the region B2 indicates the distance from the height of the distance image sensor 13 to the upper surface of the object J1 (H0−H1). The pixel data corresponding to the pixels in the region B3 indicates (H0−H1−H2), which is the distance from the height of the distance image sensor 13 to the upper surface of the object J2. Thus, the distance image data indicates the three-dimensional shape of the object in the area A1 as viewed from the distance image sensor 13.

  The distance image sensor 13 measures, for example, the time until the laser irradiated toward the target from the position corresponding to each pixel returns to the position reflected by the target, and based on the measured time, The distance image data is generated by the TOF (Time Of Flight) method for specifying the depth at the position corresponding to each pixel of the object. However, the method of generating the distance image data employed in the distance image sensor 13 is not limited to the TOF method, and any other method such as an area demodulation method may be employed.

  In accordance with an instruction from the control device 12, the spotlight array 14 responds to a result of the passerby determining the passability determination device 16 for the passerby at a timing when the passer passes through the region A <b> 2 that is a downstream region of the region A. Irradiate the colored light to the passing position of the passerby. For this reason, the spotlight array 14 includes a plurality of spotlights arranged side by side in a direction orthogonal to the passing direction of the passerby. Each of the spotlights included in the spotlight array 14 can selectively irradiate, for example, blue light indicating that passage is possible and red light indicating that passage is impossible.

  The imaging device 15 is a general video camera that captures a still image every elapse of a predetermined time.

  The passage permission determination device 16 associates various device IDs with each other so that the carrier of the wireless communication device 11 identified by the device ID can move the doorway from the upstream space to the downstream side with respect to various doorways including the doorway E. The data for determining whether or not it is allowed to pass through the space is stored. For example, if the entrance / exit is a ticket gate of a platform at a station, the pass / fail determination device 16 stores data indicating information on a ticket purchased by the carrier of the wireless communication device 11 as data relating to the entrance / exit, for example. For example, if the doorway is an entrance / exit of an office building, the pass / fail determination device 16 determines whether the carrier of the wireless communication device 11 is an employee of a company that is a tenant of the office building as data related to the doorway. The data shown is stored.

  When the passage permission determination device 16 receives a device ID transmitted from the control device 12 corresponding to a certain gateway, it is data corresponding to the gateway and stores it in association with the received device ID. Based on the data, it is determined whether or not the carrier of the wireless communication device 11 identified by the device ID can pass the entrance, and the result of the determination is transmitted to the control device 12 that is the transmission source of the device ID. .

  FIG. 4 is a diagram showing the configuration of the wireless communication device 11. As shown in FIG. 4, the wireless communication device 11 includes a storage unit 111, a reception unit 112, a radio wave intensity measurement unit 113, a transmission unit 114, and a notification unit 115. Each of these components provided in the wireless communication device 11 will be described below.

  The storage unit 111 stores the device ID of the wireless communication device 11. The reception unit 112 receives request data transmitted from each of three transmission antennas 2041-1 to 2041-3 (described later) included in the control device 12 and notification data transmitted from the transmission antenna 2041-1. .

  The request data received by the receiving unit 112 is data requesting the wireless communication apparatus 11 to measure the intensity of the radio wave when the receiving antenna provided in the receiving unit 112 receives the radio wave indicating the request data. Further, the notification data received by the receiving unit 112 is data for notifying the wireless communication device 11 when the passage of the passerby carrying the wireless communication device 11 is not permitted. The notification data includes the device ID of the wireless communication device 11 carried by a passerby who is not permitted to pass.

  The radio wave intensity measuring unit 113 measures the intensity at the time of receiving the radio wave indicating the request data according to the request data received by the receiving unit 112. The transmission unit 114 transmits, as a response to the request data received by the reception unit 112, radio wave intensity data indicating the radio wave intensity measured by the radio wave intensity measurement unit 113 and radio waves indicating the device ID of the wireless communication device 11. To do.

  The intensity of the radio wave indicated by the radio wave intensity data is used by the control device 12 for specifying the position of the wireless communication device 11 (described later). Therefore, the receiving unit 112 receives data transmitted from the control device 12 using radio waves in a frequency band whose intensity varies greatly according to the propagation distance. A desirable frequency band as a frequency band used by the control device 12 to transmit data to the wireless communication device 11 is, for example, LF (Low Frequency).

  On the other hand, it is desirable that the radio wave transmitted by the transmission means 114 is in a frequency band where data can be transmitted and received at high speed. A desirable frequency band as a frequency band used by the transmission unit 114 for data transmission is, for example, UHF (Ultra High Frequency).

  The notification means 115 indicates that when the notification data including the device ID of the wireless communication apparatus 11 (own apparatus) is received by the reception means 112, the passerby carrying the wireless communication apparatus 11 is not permitted to pass through the doorway E. Notice. The notification unit 115 includes, for example, a sound generation unit and a vibration generation unit. In response to reception of the notification data including the device ID of the wireless communication device 11 (own device), the notification unit 115 generates an alarm sound for a predetermined time, for example. The wireless communication device 11 is vibrated.

  FIG. 5 is a diagram showing the configuration of the control device 12. As shown in FIG. 5, the control device 12 includes a storage unit 201, a distance image data receiving unit 202, a passerby position specifying unit 203, a request data / notification data transmitting unit 204, a radio wave intensity data receiving unit 205, and a device position specifying unit. 206, inquiry data transmission means 207, passability data reception means 208, passer / device correspondence means 209, light emission instruction means 210, image data reception means 211, and unauthorized passer data transmission means 212. Each of these components provided in the control device 12 will be described below.

  The storage unit 201 stores various data. The data stored in the storage unit 201 stores a passer-by table for storing data relating to passers-by passing through the area A and data relating to each of the wireless communication devices 11 carried by passers-by passing through the area A. Device table to be included. The storage unit 201 temporarily stores, for example, image data continuously transmitted from the imaging device 15 in addition to the passer-by table and the device table.

  FIG. 6 is a diagram illustrating a data configuration of the passer-by table. The passer-by table is a collection of records corresponding to each passer-by that currently exists in the area A1. Therefore, the number of records included in the passer-by table changes according to the number of passers-by existing in the area A1. The passer-by table includes a “passer-by ID” field that stores a passer-by ID that is an identifier for identifying a passer-by, a position of the passer-by in the area A1 (more precisely, an area occupied by the passer-by in the area A1) , Hereinafter referred to as “occupied area”), and stores the number of passersby who occupy the area indicated by the coordinate data group stored in the “passerby position” field and the “passerby position” field. The “device ID” field stores the device ID of the wireless communication device 11 associated with the passer-by by the passer-by / passer association unit 209 (described later). Note that empty data (for example, a null value) is stored in the “device ID” field of a record corresponding to a passerby who does not carry the wireless communication device 11.

  FIG. 7 is a diagram exemplifying the passerby occupation area indicated by the coordinate data group stored in the “passerby position” field of the passerby table. The outer edge of the region v indicated by the solid line in FIG. 7 is the outer edge of the occupied area of the passerby (hereinafter referred to as “passerby V”) extracted by the passerby position specifying means 203 from the three-dimensional shape indicated by the distance image data. The outline of the passerby V viewed from above is shown. In addition, an area w indicated by a solid line in FIG. 7 is an outer edge of an occupied area of a passerby (hereinafter referred to as “passerby W”) extracted by the passerby position specifying unit 203 from the three-dimensional shape indicated by the distance image data. The outline of the passerby W viewed from above is shown. In the “passerby position” field of the passer-by table, a coordinate data group indicating a large number of points on the outer edge of the region v and the region w is stored. 7 indicates the position of the wireless communication device 11 carried by the passer-by V, and the position N indicates the position of the wireless communication device 11 carried by the passer-by W.

  FIG. 8 exemplifies the area occupied by the passer-by shown by the coordinate data group stored in the “passer-by position” field of the passer-by table, as in FIG. 7. However, in FIG. 8, since a plurality of passers-by (passers-by V and passers-by W in this case) are close to each other, the passer-by position specifying means 203 determines the plurality of those from the three-dimensional shape indicated by the distance image data. It is not possible to extract each part of each passerby individually. However, the passer-by position specifying means 203 can specify the number of passersby existing in the integrated occupied area based on the area and shape of the integrated occupied area. Therefore, in this case, the passer-by table includes one record corresponding to the passer-by V and passer-by W, and the “passer-by position” field of the record is integrated as shown in FIG. A coordinate data group indicating the occupied area u is stored, and “2” is stored in the “number of passers-by” field. Further, by the processing of the passer / device association means 209 described later, the device ID of the wireless communication device 11 carried by the passer V and the passer W is stored in the “device ID” field of the record. Become.

  FIG. 9 is a diagram illustrating a data configuration of the device table. The device table is a collection of records corresponding to each of the wireless communication devices 11 currently existing in the area A1. Therefore, the number of records included in the device table changes according to the number of wireless communication devices 11 existing in the area A1. The device table includes a “device ID” field for storing the device ID of the wireless communication device 11, a “device position” field for storing coordinate data indicating the position of the wireless communication device 11 in the area A1, and a pass / fail data receiving unit 208 ( It has a “passability” field for storing the passability data received from the passability determination device 16 as described later.

  Returning to FIG. 5, the description of the components of the control device 12 will be continued. The distance image data receiving unit 202 receives distance image data transmitted from the distance image sensor 13 every elapse of a predetermined time. The distance image data received by the distance image data receiving unit 202 generally indicates a three-dimensional shape of an object including a passerby that exists in the area A1 at the present time.

  The passer-by position specifying unit 203 extracts a portion indicating the three-dimensional shape of the person from the three-dimensional shape indicated by the distance image data received by the distance image data receiving unit 202 by, for example, a known shape recognition technique. When one or more portions indicating the three-dimensional shape of the person are extracted, the passer-by position specifying means 203 newly generates a coordinate data group indicating each occupied area of the extracted portion.

  The passer-by position specifying unit 203 includes newly generated coordinate data groups and their representative values (for example, an area indicated by the coordinate data group) among the coordinate data groups stored in the “passer-by position” field of the passer-by table. If there is a coordinate data group in which the center of gravity, the center of the circumscribed circle, etc.) are closer than a predetermined distance threshold, the coordinate data group is overwritten with the newly generated coordinate data group. Thereby, the coordinate data group indicating the occupied area of the passerby that already exists in the area A1 is updated.

  Among the coordinate data group stored in the “passerby position” field of the passer-by table, the coordinate data group in which the newly generated coordinate data group and their representative value are closer than a predetermined distance threshold If there is not, the passer-by position specifying means 203 adds a new record to the passer-by table, generates and stores a unique ID at that time in the “passer-by ID” field of the added record, The newly generated coordinate data group is stored in the field. Thereby, the area occupied by the passerby newly entering the area A1 is managed by the passerby table.

  The passer-by position specifying unit 203 deletes the record that has not been updated from the passer-by table after finishing the above-described record update or record addition processing for all the newly generated coordinate data groups. This process is a process of deleting a passerby record that has moved from the area A1 to the outside of the area A1 from the passer-by table.

  The request data / notification data transmission unit 204 includes three transmission antennas, that is, transmission antennas 2041-1 to 2041-3 (hereinafter, these transmission antennas are collectively referred to as “transmission antenna 2041”). The request data described above is transmitted from each of the above, for example, sequentially in a time-sharing manner every time a predetermined time elapses. The request data is broadcasted without designating a specific wireless communication device 11.

  The transmission antennas 2041 included in the request data / notification data transmission unit 204 are arranged at different positions. In the example of FIG. 1, the transmission antenna 2041-1 is disposed on the left column of the two left and right columns that support the spotlight array 14 and the imaging device 15, and the transmission antenna 2041-2 includes these two antennas. It is placed on the right column of the books. The transmission antenna 2041-3 is disposed on the left column of the two left and right columns that support the distance image sensor 13.

  Further, the request data / notification data transmitting means 204 is not permitted to pass based on the passer-by table (FIG. 6) and the device table (FIG. 9), and a passer-by carrying the wireless communication device 11 from the area A1. When the movement to the area A2 is detected, the notification data described above is transmitted via the transmission antenna 2041-1. The notification data includes the device ID of the wireless communication device 11 carried by the passerby who has detected the movement from the region A1 to the region A2.

  When the passerby is not permitted and the passerby carrying the wireless communication apparatus 11 moves from the area A1 to the area A2, the following conditions (1) and (2) are satisfied from the passerby table (FIG. 9). The record is deleted by the passerby position specifying means 203.

(1) The representative value of the coordinate data group stored in the “passerby position” field indicates a position near the boundary between the area A1 and the area A2.
(2) The device ID stored in the “device ID” field is stored in the “device ID” field of the record in which data indicating “impossible to pass” is stored in the “passability” field of the device table (FIG. 9). Matches the device ID to be executed.

  When the record satisfying the above conditions (1) and (2) is deleted from the passer-by table (FIG. 6), the request data / notification data transmission means 204 is stored in the “device ID” field of the deleted record. Notification data indicating the device ID that has been received is transmitted.

  Note that a desirable frequency band as a frequency band used by the request data / notification data transmission unit 204 for transmitting request data and notification data is, for example, LF as described above.

  The notification data transmitted from the request data / notification data transmission means 204 of the control device 12 is received by each of the wireless communication devices 11 in the area A and in the vicinity of the area A. When the notification data received by the receiving unit 112 includes the device ID of the own device, the notification unit 115 of the wireless communication device 11 generates, for example, an alarm sound and a vibration. Thereby, the passerby who carries the radio | wireless communication apparatus 11 can know that by a sound and a vibration, when his passage is not permitted.

  The radio wave intensity data receiving unit 205 includes a receiving antenna 2051 and receives radio wave intensity data and a device ID transmitted from each of the wireless communication devices 11 as a response to the request data transmitted from the request data / notification data transmitting unit 204. The signal is received via the receiving antenna 2051. A frequency band desirable as a frequency band used by the receiving antenna 2051 for receiving radio wave intensity data and device ID is, for example, UHF as described above.

  In the example of FIG. 1, the receiving antenna 2051 is arranged on the right column among the two left and right columns that support the distance image sensor 13.

  The device position specifying unit 206 specifies the position of the wireless communication device 11 identified by the device ID based on the radio wave intensity data and the device ID received by the radio wave intensity data receiving unit 205.

  As described above, the request data / notification data transmission unit 204 transmits the request data sequentially from each of the three transmission antennas 2041 arranged at different positions, that is, the transmission antennas 2041-1 to 2041-3, for example, in a time division manner. Broadcast transmission. When the wireless communication apparatus 11 existing in and around the area A receives the request data, the radio communication apparatus 11 measures the intensity of the radio wave indicating the request data, and uses the radio field intensity data indicating the measured radio field intensity as the device ID of the own apparatus. Send with.

  Therefore, the radio wave intensity data receiving unit 205 receives three radio wave intensity data sequentially transmitted together with the same device ID as a response to the request data continuously transmitted from each of the transmission antennas 2041-1 to 2041-3. To do. The device position specifying unit 206 specifies the position of the wireless communication device 11 that is the transmission source of these radio wave intensity data, based on the radio wave intensity indicated by these three radio wave intensity data.

  When the device position specifying unit 206 specifies the position of the wireless communication device 11 as described above, it is received from the device table (FIG. 9) together with the device ID of the wireless communication device 11 (the radio wave intensity data used for specifying the position). The device ID) is stored in the “device ID” field. When the corresponding record is searched from the device table, the device position specifying unit 206 overwrites the coordinate data stored in the “device position” field of the searched record with the coordinate data indicating the newly specified position. As a result, the coordinate data indicating the position of the wireless communication apparatus 11 already existing in the area A or in the vicinity of the area A is updated.

  In the above search, if the corresponding record is not searched from the device table (FIG. 9), the device position specifying unit 206 adds a new record to the device table and newly adds it to the “device ID” field of the added record. The device ID of the wireless communication device 11 that has specified the position (device ID received together with the radio wave intensity data used for specifying the position) is stored, and the position of the wireless communication device 11 that has been newly specified in the “device position” field The coordinate data indicating is stored. As a result, the position of the wireless communication apparatus 11 newly entering the area A1 or the periphery of the area A is managed by the apparatus table.

  The apparatus location specifying unit 206 performs the above-described record update or record addition process based on data transmitted as a response to the three request data continuously transmitted from each of the transmission antennas 2041-1 to 2041-3. After finishing, the record that has not been updated is deleted from the device table. This process is a process of deleting the record of the wireless communication apparatus 11 that has been far away from the area A from the apparatus table.

  When a new record is added to the device table (FIG. 9), the inquiry data transmission means 207 indicates the device ID stored in the “device ID” of the added record and the location where the control device 12 is located. In this case, inquiry data including the passage location identification data for identifying (entrance / exit E) is generated and transmitted to the passage permission determination device 16.

  The passability determination device 16 is configured so that the wearer of the wireless communication device 11 identified by the device ID included in the inquiry data transmitted from the inquiry data transmission unit 207 of the control device 12 can identify the passage location included in the inquiry data. It is determined whether or not the passage of the place identified by the data is permitted, and the passage permission / prohibition data indicating the result of the determination together with the device ID included in the inquiry data is included in the control device 12 that transmitted the inquiry data. Send to.

  The passage permission / rejection data receiving unit 208 of the control device 12 receives the passage permission / prohibition data transmitted from the passage permission / inhibition determination unit 16 as described above in response to the inquiry data transmitted from the inquiry data transmission unit 207 together with the device ID. The passability data receiving means 208 searches the device table for a record that includes the device ID received from the passability determination device 16 in the “device ID” field, and enters the “passability” field of the searched record from the passability determination device 16. Stores the received passability data.

  The passer-by / apparatus correspondence unit 209 exists in the passer-by's occupied area corresponding to each record included in the passer-by table (FIG. 6), for example, every time a predetermined time elapses. By searching a record corresponding to the wireless communication device 11 from the device table (FIG. 9), the passerby table record and the device table record are associated with each other.

  Specifically, the passer-by / apparatus association unit 209 selects one record from the passer-by table, and reads out the coordinate data group stored in the “passer-by position” field of the selected record. Subsequently, the passerby / device association unit 209 extracts, from the device table, a record in which coordinate data indicating the position in the area indicated by the read coordinate data group is stored in the “device position” field. When one or more records are extracted in the extraction, the passer / device association unit 209 selects the device ID stored in the “device ID” field of the extracted record from the passer-by table first. In the “device ID” field. If no record is extracted from the device table, the data update is performed while empty data (for example, a Null value) is stored in the “device ID” field of the record previously selected from the passer-by table. Not done. The passer-by / apparatus correspondence unit 209 performs the above-described processing for all the records in the passer-by table.

  As a result of the processing by the passer-by / device association means 209 described above, the passerby whose position is specified by the passer-by position identification means 203 and the wireless communication apparatus 11 whose position is specified by the apparatus position specifying means 206 are associated with each other. Done.

  When the light emission instructing unit 210 detects that a passerby permitted to pass from the area A1 to the area A2 based on the passerby table (FIG. 6) and the device table (FIG. 9), Light emission instruction data for instructing irradiation of blue light by the spotlight according to the position is generated, and the generated light emission instruction data is transmitted to the spotlight array 14. Further, when the light emission instructing unit 210 detects that a passerby who is not allowed to pass from the area A1 to the area A2 based on the passerby table (FIG. 6) and the device table (FIG. 9), the passerby Light emission instruction data for instructing irradiation of red light by the spotlight according to the position of the person is generated, and the generated light emission instruction data is transmitted to the spotlight array 14.

  When a passerby permitted to pass from the area A1 to the area A2, a record that satisfies the following conditions (3) and (4) is passed from the passerby table (FIG. 9) by the passerby position specifying means 203. Deleted.

(3) The representative point of the coordinate data group stored in the “passerby position” field indicates a position near the boundary between the area A1 and the area A2.
(4) The device ID stored in the “device ID” field is stored in the “device ID” field of a record in which data indicating “passable” is stored in the “passability” field of the device table (FIG. 9). Matches the device ID to be executed.

  When the record satisfying the above conditions (3) and (4) is deleted from the passer-by table (FIG. 6), the light emission instructing unit 210 stores the coordinates stored in the “passer-by position” field of the deleted record. Light emission instruction data including position data indicating the position indicated by the data (position in the horizontal direction of the region A) and light emission color data indicating blue as the light emission color is generated, and the generated light emission instruction data is transmitted to the spotlight array 14. To do.

  In addition, when a passerby who is not permitted to travel moves from the area A1 to the area A2, from the passerby table (FIG. 9), the following conditions (5) and (6) or conditions (5) and ( The record satisfying 7) is deleted by the passerby position specifying means 203.

(5) The coordinate data stored in the “passerby position” field indicates a position near the boundary between the area A1 and the area A2.
(6) The device ID stored in the “device ID” field is stored in the “device ID” field of a record in which data indicating “impossible to pass” is stored in the “passability” field of the device table (FIG. 9). Matches the device ID to be executed.
(7) Empty data (for example, Null value) is stored in the “device ID” field.

  When the record that satisfies the above conditions (5) and (6) or the conditions (5) and (7) is deleted from the passer-by table (FIG. 6), the light emission instructing unit 210 displays “ Generation and generation of emission instruction data including position data indicating the position (position in the horizontal direction of the area A) indicated by the coordinate data stored in the “passerby position” field and emission color data indicating red as the emission color The emitted light emission instruction data is transmitted to the spotlight array 14.

  When the spotlight array 14 receives the light emission instruction data transmitted from the light emission instruction unit 210 of the control device 12, the spotlight array 14 changes from the spotlight corresponding to the position indicated by the position data included in the light emission instruction data to the light emission instruction data. The light of the color indicated by the included emission color data is irradiated for a predetermined time. As a result, the passerby who is allowed to pass is irradiated with blue light immediately before the passerby passes through the doorway E, and the passerby who is not allowed to pass passes through the doorway E. On the other hand, red light is irradiated. Therefore, a passerby can confirm whether or not his / her pass is permitted by the color of the light. In addition, since whether or not the passer-by can pass is also seen by other passers-by, the illegal pass is suppressed.

  Note that the above-described processing of the light emission instructing unit 210 is processing when the data in the “number of passers-by” field of the record of the passerby table to be processed indicates “1”. When the data of the “passers number” field of the passerby table record to be processed indicates “2” or more, that is, when a plurality of passersby are close to each other as illustrated in FIG. 210 determines the color of the light emission as follows.

(A) Of the device IDs stored in the “device ID” field of the record of the passer-by table, the number of device IDs of the wireless communication device 11 that can pass is the passer-by indicated by the data in the “passer-by number” field. If it is more than the number of people, irradiate with blue light.
(B) Among the device IDs stored in the “device ID” field of the passer-by table, the number of device IDs of the wireless communication device 11 that can pass is the passer-by indicated by the data in the “passer-by number” field. If it is less than the number of people, irradiate red light.

  As a result, among a plurality of passers-by who pass through the area A1 in close proximity to each other, even a passerby carrying the wireless communication device 11 that is not permitted to pass or a passerby not carrying the wireless communication device 11 If it is included, all of the plurality of passersby will be irradiated with red light indicating impassability.

  The image data receiving unit 211 receives image data sequentially transmitted from the imaging device 15. The image data received by the image data receiving unit 211 is temporarily stored in the storage unit 201. For example, the storage unit 201 sequentially deletes image data representing an image captured before a predetermined time threshold from the present time. Accordingly, the storage unit 201 always stores the latest image data for a certain past period.

  The unauthorized passer-by data transmission means 212 represents an image captured within a predetermined time period before and after the timing when a passer who is not allowed to pass moves from the area A1 to the area A2. The image data includes coordinate data indicating the position of the passerby just before the passerby moves from the area A1 to the area A2, and the radio communication apparatus 11 when the passerby carries the radio communication apparatus 11. And the passage location identification data for identifying the place where the control device 12 is disposed (in this case, the entrance / exit E) are transmitted to the passability determination device 16 as unauthorized passer-by data.

  More specifically, the unauthorized passerby data transmission unit 212 confirms that a passerby who is not allowed to pass from the area A1 to the area A2 by a method similar to the method performed by the light emission instruction unit 210 described above. To detect. When the unauthorized passer-by data transmission means 212 detects a movement from the area A1 to the area A2 by a passer who is not allowed to pass, the passerby table (FIG. 6) records corresponding to the passerby A coordinate data group indicating a passer's occupation area and a device ID stored in the passerby table (record deleted from the passerby table in accordance with the movement from the area A1 to the area A2) are temporarily held. Thereafter, the storage means after a predetermined time has elapsed (for example, if the image data held in the storage means 201 is a series of image data indicating a 10-second moving image, for example, after half of the 5 seconds have elapsed). The image data stored in 201 is read. The unauthorized passer-by data transmission means 212 receives the illegal passer-by data including the image data read out in this way, the coordinate data group and device ID temporarily stored previously, and the pass location identification data for identifying the entrance E. It is generated and transmitted to the pass / fail determination device 16.

  The unauthorized passerby data transmitted from the control device 12 to the passability determination device 16 is stored in the passability determination device 16 and is used to identify an unauthorized passerby. For example, image features of illegal passers may be extracted by a known image recognition technique, and passerby data of passers of images having the same or similar extracted features may be grouped. According to the illegal passerby data grouped in such a manner, it is possible to specify a pass place where the illegal passer passes frequently. Further, for example, if time data indicating the time when the passability determination device 16 receives the unauthorized passer-by data from the control device 12 is recorded in association with the unauthorized passer-by data, the unauthorized passer-by is frequently fraudulent. It is also possible to specify the time zone for passing.

  According to the above-described passability determination system 1, a passerby does not need trouble such as having a reading device read a pass permit when passing through a place where only a permitted person can pass. In addition, according to the passage permission / inhibition determination system 1, the passage is not restricted by the gate, so that a queue is unlikely to occur during passage, and smooth passage is realized.

[Modification]
The embodiment described above can be variously modified. Examples of these modifications are shown below. Note that the above-described embodiment and the modifications described below may be combined as appropriate.

(1) In the above-described passability determination system 1, the position of the wireless communication device 11 is specified based on the strength of the radio communication device 11 receiving the radio wave transmitted from the control device 12. Instead of this, the position of the wireless communication device 11 may be specified based on the strength at the time of reception of the radio wave transmitted from the wireless communication device 11 in the control device 12. In this modification, the wireless communication device 11 includes a transmission unit that transmits request data using radio waves in the LF frequency band, for example. In addition, the control device 12 includes a receiving unit having three receiving antennas that receive request data by radio waves in the LF frequency band, for example. These three receiving antennas are installed at different positions, like the transmitting antennas 2041-1 to 2041-3 in the above-described embodiment. In addition, the control device 12 includes a radio wave intensity measuring unit that measures the intensity of the radio wave received by the receiving unit. The device position specifying unit 206 specifies the position of the wireless communication device 11 based on the radio wave intensity specified by the radio wave intensity measuring unit.

(2) In the above-described passability determination system 1, the number of transmission antennas 2041 is three. In the modification (1) described above, the number of reception antennas that the control device 12 uses to receive request data is also three. The number of antennas used by the control device 12 for transmitting or receiving request data is not limited to three, and may be two or four or more. Note that if the control device 12 has two antennas for transmitting or receiving request data, assuming that the height of the wireless communication device 11 is, for example, 100 cm from the floor, the wireless communication device 11 is wireless. The position of the communication device 11 can be specified. Actually, since the height of the wireless communication device 11 is not constant, there is an error in the position of the specified wireless communication device 11. However, if the error is a problem in associating the passerby with the wireless communication device 11. Otherwise, the control device 12 may have two antennas.

(3) In the above-described passability determination system 1 or the above-described modification (1), based on the strength of radio waves transmitted and received between each of the antennas included in the wireless communication device 11 and the plurality of antennas included in the control device 12. The position of the wireless communication device 11 is specified. Instead, radio waves transmitted and received between each of the antennas of the wireless communication device 11 and the plurality of antennas of the control device 12 are transmitted from the transmission source device and then received by the transmission destination device. The position of the wireless communication device 11 may be specified based on the time required for the above.

(4) In the above-described passability determination system 1, the passerby is notified of the result of the passability determination. In addition to or instead of this, the result of the determination of whether or not the passer-by can pass may be notified to a person other than the passer-by such as an administrator of the space S2, for example. For example, when the passability determination system 1 is installed in a station, data indicating the result of determination of passability of passersby may be transmitted to, for example, a terminal device used by a station staff. In this case, the station staff can know whether or not passengers are properly entering and leaving the station platform via the terminal device.

(5) In the above-described passability determination system 1, the frequency band of radio waves (radio waves used for transmission / reception of request data) used for specifying the position of the wireless communication device 11 and transmission / reception of data such as device IDs. The frequency bands of radio waves used are different from each other. As long as it is possible to specify both the position of the wireless communication device 11 and transmission / reception of data such as a device ID using radio waves in the same frequency band, the frequency bands of radio waves used for them may be the same.

(6) In the above-described passability determination system 1, the position of the passerby (area occupied) in the area A <b> 1 is specified based on the distance image data generated by the distance image sensor 13. The position of the passerby in the area A1 may be specified based on data different from the distance image data.

  For example, a pressure sensor array having a large number of pressure sensors arranged side by side on a surface is installed on the floor of the area A1, and the passer-by position determining means 203 is configured to pass through the area A1 based on the pressure measured by the pressure sensor array. A person's position (occupied area) may be specified. In this case, the passer-by position determination unit 203 detects, for example, pressures simultaneously by pressure sensors included in a region of the shape of a person's foot among the plurality of pressure sensors included in the pressure sensor array, and those pressures. If the size is within the range of the size according to the weight of a general passerby, the area including those pressure sensors is identified as the occupied area of the passerby.

  Further, for example, an imaging device is arranged above the area A1 instead of the distance image sensor 13, and the passerby position specifying unit 203 detects the passersby in the area A1 based on an image captured from the upper side to the lower side by the imaging device. The occupied area may be specified. In this case, the passer-by position identifying unit 203 recognizes a passer-by image included in an image captured by the imaging device, for example, using a known image recognition technique, and the passer-by based on the recognized passer-by image area. Specify the occupied area.

(7) In the above-described passability determination system 1, in addition to the position of each passer, the passability of the passer may be determined based on the characteristics of each passer's body. For example, the distance image data generated by the distance image sensor 13 represents the three-dimensional shape of the object in the area A1. Therefore, for example, the control device 12 includes body feature specifying means for specifying the body characteristics such as the height and weight of each passerby in the area A1 based on the distance image data, and the inquiry data transmitting means 207 includes the body feature. Inquiry data including physical feature data indicating physical features such as height and weight specified by the specifying means is transmitted to the passability determination device 16. The passability determination device 16 determines whether or not the passerby is allowed to pass based on the height, weight, and the like indicated by the body feature data in addition to the device ID. According to this modification, for example, whether or not traffic is permitted is appropriately determined at the entrance of a vehicle landing where the minimum height and the maximum weight are specified.

(8) In the above-described passability determination system 1, the passability determination result is notified to the passerby by irradiation with colored light. The manner of notifying the result of passability determination for passers-by is not limited to this. For example, a display device such as a liquid crystal display may display a figure or the like indicating the result of passability determination at a position corresponding to the position of the passerby. Moreover, you may notify the result of passability determination by arrange | positioning light-emitting devices, such as LED, side by side on a floor, and making LED light-emit according to a passer's position. In addition, the notification in the case where the passage is possible and the case where the passage is impossible may be made by a mode other than the color such as blinking.

(9) In the above-described passability determination system 1, the wireless communication device 11 transmits a device ID to the control device 12 as data used for determining whether a passerby can pass. Instead, for example, the wireless communication device 11 can check information on tickets purchased by passers-by, the amount of charged electronic money that can be used as tolls, places where traffic is permitted, time zones, etc. Data may be stored, and these data may be transmitted to the control device 12 as necessary. In this modification, in addition to or instead of the data stored in association with the device ID in the passability determination device 16, the data stored in the wireless communication device 11 is used to determine the passability of the passerby. Used.

(10) In the above-described passability determination system 1, the passability determination device 16 determines whether or not a passerby can pass. Instead, the pass / fail determination of passers-by may be performed in the control device 12, for example. Further, in the above-described passability determination system 1, the position of the wireless communication device 11 is specified by the control device 12. Instead of this, the position of the wireless communication device 11 may be specified by, for example, the wireless communication device 11 or the passability determination device 16. Further, the control device 12 may also serve as the passage permission determination device 16. As described above, the configuration of the device included in the passability determination system 1 and the role of each of the devices included in the passability determination system 1 may be changed.

(11) In the above-described embodiment, it is assumed that traffic at the entrance / exit E is limited to traffic from the space S1 toward the space S2. Therefore, the distance image sensor 13, the spotlight array 14, and the imaging device 15 included in the passability determination system 1 are arranged on the space S1 side. When bi-directional traffic is permitted at the entrance / exit E, in addition to the distance image sensor 13, the spotlight array 14, the imaging device 15, the transmission antenna 2041, and the reception antenna 2051, the passage permission / inhibition determination system is added to the space S 1 side. A configuration including the distance image sensor 13, the spotlight array 14, the imaging device 15, the transmission antenna 2041 and the reception antenna 2051 arranged on the space S <b> 2 side may be employed. In this case, these devices arranged on the space S2 side are used to determine whether or not a passerby can pass from the space S2 to the space S1.

  In this modification, the passability determination system 1 may include a control device 12 that determines whether or not the space S1 is allowed to pass and a control device 12 that determines whether or not the space S2 is allowed to pass. However, only one of the components of the control device 12 excluding the transmitting antenna 2041 and the receiving antenna 2051 is provided, and these components are allowed to pass on the space S1 side and whether to pass on the space S2 side. A configuration for performing both processes of determination may be employed.

DESCRIPTION OF SYMBOLS 1 ... Passability determination system, 11 ... Wireless communication apparatus, 12 ... Control apparatus, 13 ... Distance image sensor, 14 ... Spotlight array, 15 ... Imaging device, 16 ... Passability determination apparatus, 111 ... Storage means, 112 ... Reception Means 113: Radio wave intensity measurement means 114 ... Transmission means 115 ... Notification means 201 ... Storage means 202 ... Distance image data reception means 203 ... Passerby position specifying means 204 ... Request data / notification data transmission means, 205: Radio wave intensity data receiving means, 206: Device position specifying means, 207 ... Inquiry data transmitting means, 208 ... Passability data receiving means, 209 ... Passer / device correspondence means, 210 ... Light emission instruction means, 211 ... Image data Receiving means, 212 ... unauthorized passer-by data transmitting means, 2041 ... transmitting antenna, 2051 ... receiving antenna

Claims (10)

A position of each passerby in the predetermined area and a position of each wireless communication device in the predetermined area are individually identified, and a passerby and the wireless communication apparatus in the predetermined area based on each specified position A passability determination system that determines whether each passerby is allowed to pass based on a result of the association and information transmitted from each of the wireless communication devices. The passability determination system according to claim 1, wherein notification is made according to a position of a passerby to be determined and a result of the determination. The passability determination system according to claim 2, further comprising a light emitting device, wherein the notification is performed by performing light emission according to a result of the determination at a position of a passerby to be determined. A plurality of antennas, and for each of the wireless communication devices, the strength at the time of reception by the wireless communication device of radio waves transmitted from each of the plurality of antennas, or the plurality of radio waves transmitted from the wireless communication device The passage permission / prohibition determination system according to any one of claims 1 to 3, wherein a position of the wireless communication device is specified based on strength at the time of reception by each of the antennas. A plurality of antennas, and for each of the wireless communication devices, the time taken for the radio waves transmitted from each of the plurality of antennas to reach the wireless communication device, or the radio waves transmitted from the wireless communication device The passage permission determination system according to any one of claims 1 to 3, wherein a position of the wireless communication device is specified based on a time required to reach each of the plurality of antennas. The passability determination system according to claim 4 or 5, further comprising an antenna that receives the information transmitted from each of the wireless communication devices by a radio wave having a frequency different from a frequency of a radio wave transmitted or received by the plurality of antennas. . The passability determination system according to any one of claims 1 to 6, further comprising a distance image sensor, wherein the position of each passerby is specified based on distance image data measured by the distance image sensor. The passage according to claim 7, wherein a body characteristic of each of the passers-by is identified based on distance image data measured by the distance image sensor, and whether or not each passer-by is allowed to pass is determined based on the identified characteristics. Acceptability determination system. The passability determination system according to any one of claims 1 to 8, further comprising an imaging device that images the passerby, and associating each image of the passerby imaged by the imaging device with the result of the determination. . The traffic according to any one of claims 1 to 9, wherein, for each of the wireless communication devices, information corresponding to a result of the determination regarding a passerby associated with the wireless communication device is transmitted to the wireless communication device. Acceptability determination system.

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