JP2012207480A - Passage management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passage management system which manages passage at a gateway of a management area to accurately grasp a state in which a tailgate may occur and to prevent a tailgate.SOLUTION: A passage management system 1 defines at least one of the outside and inside of a management area AR as a detection side, and acquires characteristic information from a detected person on the detection side. The number of persons who are present on the detection side and allowed to pass through is detected based upon the acquired characteristic information and information on previously registered persons who are allowed to pass through. Further, the inside of the detection area set on the detection side within a predetermined range from the gateway is scanned with laser light to detect the actual number of persons, and the number of persons who are allowed to pass through and the actual number of persons are compared with each other to determine whether the numbers match each other. Then the gateway is switched to a locked state on a condition that a matching state is determined.

Description

  The present invention relates to a traffic management system.

  Currently, a traffic management system for managing a person who enters a management area or a person who leaves the management area is provided as a management area in a company, a factory, or a facility. For example, Patent Document 1 discloses an entrance / exit management system that allows only a specific person to enter a room as a management area. In this technology, an authorized person who possesses an IC card to which entry / exit authority is granted is disclosed. Only the IC card can be authenticated, and only when the authentication is received, the electric lock is unlocked and entry into the room is permitted. According to such an entrance / exit management system, the security of the room can be enhanced, which is extremely advantageous in performing confidential management.

JP 2006-144226 A JP 2006-120086 A

  By the way, in the traffic management system represented by the above-mentioned entrance / exit management system, for example, when a legitimate person tries to enter the management area, a third party who is not authenticated enters together. The problem of “companies” is known. In order to deal with such a problem of “shared”, in the entrance / exit management system of Patent Document 1, human body detection sensors are arranged indoors and outdoors, and an electric lock is obtained by authentication with a non-contact card reader. The number of person detections near the door on the indoor side and the number of person detections near the door on the outdoor side are counted from when the door is unlocked until the door is closed. When the number of person detections at the indoor side and the person detection number at the outdoor side exceeds the number of authentications by the non-contact card reader, a warning is issued to the management terminal that there is a possibility of “joint”. Yes. However, the technique disclosed in Patent Document 1 has a problem in that, when a companion occurs, a warning is given afterwards, so that the companion cannot be prevented in advance.

  In addition, in order to prevent co-occurrence in this way, in order to accurately grasp whether it is likely that co-occurrence will occur, at least the actual number of people trying to enter the management area or exit from the management area It is essential to accurately grasp the actual number of people. However, in a general human body detection sensor (for example, an infrared sensor, etc.) as in Patent Document 1, the number of people is accurate if the person is not separated to some extent. There is a problem that it is difficult to detect. Therefore, in the configuration using such a human body detection sensor, the number of persons who should be permitted to enter and exit (that is, the number of persons who have been authenticated) and the actual number of persons who intend to pass through the entrance and exit are as follows. It is difficult to accurately determine whether or not they are in agreement (that is, whether or not co-occurrence does not occur), and it is difficult to take measures to prevent co-occurrence.

  On the other hand, instead of using an infrared sensor or the like to grasp the actual number of people who are going to enter the room, it is conceivable to perform image processing on an image photographed by a camera as in Patent Document 2, but this Even with this method, it is not easy to accurately grasp the number of people, and in addition, in order to increase the accuracy of confirming the number of people, a camera for shooting and expensive equipment for high-speed image processing are essential. Inevitable increase in cost for.

  The present invention has been made to solve the above-described problems, and in a traffic management system that manages the traffic at the entrance and exit of a management area, it is possible to more accurately grasp the state in which sharing can occur. It is an object of the present invention to provide a configuration capable of preventing the occurrence of accompanying persons.

In order to achieve the above object, the present invention provides:
A traffic management system for managing traffic at the entrance and exit of a management area,
Specific information acquisition means for acquiring at least one of the outside and inside of the management area as a detection side and acquiring specific information from the detected person on the detection side;
Based on the unique information acquired by the unique information acquisition means and information on the authorized person registered in advance, the number of authorized persons detecting means for detecting the number of permitted persons existing on the detection side;
A laser scanner that scans a detection area set within a predetermined range from the entrance and exit on the detection side with a laser beam, and based on an object detection result in the detection area by the laser scanner, Real number detection means for detecting the real number of people,
Comparison determination means for comparing the number of permitted persons detected by the permitted person number detection means with the actual number of persons detected by the actual number detection means to determine whether or not they are in agreement.
Unlocking control means for bringing the entrance / exit into an unlocked state on the condition that the comparison judging means determines that the number of permitted persons and the actual number of persons are in agreement with each other,
It is provided with.

In the first aspect of the present invention, the unique information acquisition means is provided, and at least one of the outside and inside of the management area is set as the detection side, and the detection side acquires the specific information from the detected person. The authorized person number detecting means detects the number of permitted persons on the detection side based on the unique information acquired by the unique information acquiring means and the information of the authorized person registered in advance. According to this configuration, the specific information actually acquired from the detected person can be surely confirmed in light of the registered permitter information, and the number of permitted passers on the detection side can be accurately grasped.
Furthermore, a real number detection means equipped with a laser scanner is provided, and a detection area set within a predetermined range from the entrance / exit on the detection side is scanned with a laser beam, and an object detection result in the detection area is obtained. Based on this, the actual number of people in the detection area is detected. Thus, if the actual number of people in the detection area is grasped by laser scanning, the accuracy of detecting the number of existing people is significantly increased compared to other human sensors (infrared sensors or the like).
Then, a comparison judgment means is provided, and the number of permitted persons detected in this way is compared with the actual number of persons to determine whether or not they are in agreement. The unlocking control means switches the entrance / exit to the unlocked state on condition that the number of persons and the number of actual persons are determined to be in agreement. According to this configuration, it is possible to more accurately determine whether the actual number of persons near the entrance / exit corresponds to the already permitted person based on the number of permitted persons and the actual number of persons who have been detected with high accuracy. it can. And since the entrance / exit is unlocked on the condition that the coincidence state is determined, when a person other than the permitter is going to enter with the permitter (that is, a companion may occur) In the case of a state), it is possible to detect such a state more reliably and stop the unlocking, thereby preventing the occurrence of co-occurrence in advance.

In the invention of claim 2, the comparison determination means determines whether or not the number of persons permitted to pass and the actual number of persons are in agreement after the specific information is acquired by the specific information acquisition means. Furthermore, an informing means for informing when the comparison judging means judges that the number of persons permitted to pass and the actual number of persons is not the same state is provided.
According to this configuration, the number of persons who are permitted to pass by selecting the time when the unique information is acquired and the detector related to the unique information is about to pass through the entrance / exit (that is, the time when the unlocking determination is required). And the actual number of people can be determined, and the dark cloud cannot be determined to match. And when it is not in a coincidence state, it can alert | report that and can raise attention and can improve security. Further, since the notification is not performed by judging the coincidence state with the dark clouds, the notification is not performed without darkness at a time when it is unlikely that the permitted person passes the entrance / exit.

In the invention of claim 3, the actual number detection means includes a counting means, and this counting means counts passing candidates who are going to pass through the entrance / exit from the detection side when the entrance / exit is not locked. Yes. Further, the comparison judgment means can judge whether or not the number of pass candidates counted by the count means exceeds the number of pass permitters detected by the permitter number detection means. Furthermore, alarm means is provided for issuing an alarm when the number of passing candidates counted by the counting means exceeds the number of permitted passers.
In this configuration, even if a third party (a person who is not allowed to pass) tries to jump into the entrance / exit after the match is confirmed and unlocked, By comparing the number of persons permitted to pass and the actual number of persons, it is possible to more reliably detect such unauthorized passage and issue an alarm. Therefore, it is possible to reliably detect a companion due to a jump-in after unlocking, and to prompt a related person (for example, an entrance / exit security manager) to respond.

In the invention of claim 4, the unique information acquisition means is arranged at a predetermined first position away from the entrance / exit. In addition, the counting means sets a passage management area on the detection side between the first position where the unique information obtaining means is installed and a predetermined second position closer to the entrance / exit than the first position. The number of persons who have moved within the passage management area and have reached the second position is counted as passage candidates.
In this configuration, when the authorized person (who can be authenticated by the unique information) reaches the second position, it is highly likely that the authorized person has already been recognized as a pass-permitted person. It becomes difficult to be counted as a passage candidate before being authenticated as a passage permitter. Therefore, it becomes easy to avoid a situation where a passer and a pass candidate are compared in a state where a legitimate person (having specific information and a person who is going to receive authentication) is mixed before being authenticated, It becomes easier to accurately determine whether or not there is only a regular person near the entrance / exit.

In the invention of claim 5, as the unique information acquisition means, the outer unique information acquisition means for acquiring the unique information from the detected person outside the management area, and the inner unique information for acquiring the unique information from the detected person inside the management area Information acquisition means.
In addition, an outside authorized person number detecting means and an inside authorized person number detecting means are provided as the authorized person number detecting means, and the outside authorized person number detecting means is a detected person outside the management area by the outside specific information acquiring means. The number of permitted persons outside the management area is detected based on the unique information acquired from the information and the information of authorized persons registered in advance. The inner authorized person number detecting means passes the inside of the management area based on the unique information acquired from the detected person inside the management area by the inner unique information acquiring means and the information of the authorized person registered in advance. The number of authorized persons is detected.
According to this configuration, the number of pass-permitted persons can be accurately grasped both inside and outside the entrance / exit.
Further, as the actual number of people detection means, an outside number of real people detection means and an inside number of real people detection means are provided, and the outside real number of people detection means is set within the first predetermined range from the entrance / exit outside the management area. A first laser scanner that scans the first detection area with laser light is provided, and the actual number of persons in the first detection area is based on the object detection result in the first detection area by the first laser scanner. Is detected. The inner real number detection means includes a second laser scanner that scans the second detection area set in the second predetermined range from the entrance and exit inside the management area with the laser beam, and the second laser scanner Based on the object detection result in the second detection area by the laser scanner, the actual number of persons in the second detection area is detected.
According to this configuration, the actual number of persons can be detected more accurately both inside and outside the entrance / exit.
The comparison determination unit includes a first comparison determination unit and a second comparison determination unit, and the first comparison determination unit includes the outside permitted person detected by the outside permitted person number detecting unit. The number of persons and the actual number of persons in the first detection area detected by the outer actual number of persons detection unit are compared to determine whether or not they are in agreement, and the second comparison determination unit detects the number of permitted inner persons The number of inside passage permitters detected by the means and the actual number of persons in the second detection area detected by the inside real number detection means are compared to determine whether or not they are in agreement.
Then, the unlocking control means sets the entrance / exit to the unlocked condition on condition that both the first comparison judging means and the second comparison judging means judge that they are in the coincidence state.
According to this configuration, it is possible to more accurately determine whether the actual number of people in the vicinity of the entrance / exit corresponds to a person who has already been permitted, both inside and outside the entrance / exit. And since the entrance / exit is unlocked on the condition that the coincidence state on both sides is judged, when either inside or outside of the entrance / exit is in a state where accompanying can occur, this state is more It is possible to reliably detect and stop the unlocking, and it is possible to take a more thorough countermeasure for co-payment.

FIG. 1 is an explanatory diagram conceptually illustrating the traffic management system according to the first embodiment of the present invention. FIG. 2 is an explanatory diagram for explaining the traffic management system of FIG. 1 in a direction different from that in FIG. FIG. 3 is a schematic cross-sectional view schematically illustrating a laser scanner used in the traffic management system of FIG. FIG. 4 is an explanatory diagram showing a detection area setting method in the laser scanner of FIG. FIG. 5 is a flowchart illustrating the flow of the passage monitoring process performed by the controller. FIG. 6 is a flowchart illustrating the flow of authentication processing. FIG. 7 is a flowchart illustrating the flow of the unlock determination process. FIG. 8 is an explanatory diagram for explaining a state of entering the room from the outside after unlocking.

[First embodiment]
Hereinafter, a first embodiment embodying the present invention will be described with reference to the drawings.
(Overall configuration of traffic management system)
First, the overall configuration of the traffic management system 1 will be described with reference to FIGS.
FIG. 1 is an explanatory diagram conceptually illustrating the traffic management system according to the first embodiment of the present invention. FIG. 2 is an explanatory diagram for explaining the traffic management system of FIG. 1 in a direction different from that in FIG. FIG. 3 is a schematic cross-sectional view schematically illustrating a laser scanner used in the traffic management system of FIG. FIG. 4 is an explanatory diagram showing a detection area setting method in the laser scanner of FIG.

  As shown in FIGS. 1 and 2, the traffic management system 1 according to the present embodiment manages the traffic of a room entrance / exit 3 (entrance / exit) using, for example, a specific room (indoor) as a management area AR0. It is configured as an entrance / exit management system. The traffic management system 1 includes an electric lock 7 configured as an information processing apparatus, an IC card reader 7, a controller 9, and a laser scanner 10 (first laser scanner 10a and second laser scanner 10b). The structure is made.

  The room (management area AR0) in which the traffic management system 1 is provided is configured such that the doorway 3 is opened and closed by a door 5. The door 5 is configured, for example, as a slide type or a rotary type, and an electric lock 6 is provided at a position adjacent to the door 5. As the electric lock 6, for example, an electromagnetic electric lock that locks and unlocks the door 5 by operating an electromagnet inside the electric lock when energized is used, and when the unlock signal is output from the controller 9, the electric lock 6 is unlocked. When the operation is performed and the lock signal is output from the controller 9, the locked state is maintained. Various known electric locks can be used as long as the door 5 can be locked and unlocked by electrical control.

  The controller 9 includes a control circuit such as a CPU, a semiconductor memory such as a ROM and a RAM, a communication unit for communicating with an external device, and the like, and is configured as an information processing apparatus as a whole. Each controller 9 is electrically connected to each laser scanner 10, each IC card reader 7, and electric lock 6.

  The controller 9 includes a control circuit 9a, a communication unit 9b, a memory 9c, and the like. The control circuit 9a is composed of a microcomputer, for example, and controls the entire controller 9 according to a control program stored in the memory 9c. The controller 9 is configured to be able to acquire information from an IC card reader 7 and a laser scanner 10 described later, and functions to perform various information processing in accordance with information from the IC card reader 7 and the laser scanner 10. The controller 9 is configured to be able to control the electric lock 6. When a predetermined unlocking condition is satisfied, the controller 9 outputs an unlock signal to the electric lock 6, and in response to this signal, the electric lock 6 is output. In step 6, the unlocking operation is performed. Further, when a predetermined locking condition is established, a locking signal is output to the electric lock 6, and the locking operation is performed by the electric lock 6 in response to this signal.

  The IC card reader 7 is configured as a known IC card reader that reads an IC card by a non-contact communication method. This IC card reader performs non-contact communication with the IC card when the IC card on which the unique information (for example, the unique ID) is deceived by the detected person, and the unique information recorded on the IC card is read. read. The IC card reader 7 corresponds to an example of unique information acquisition means, and at least one of the outside and inside of the management area AR0 is set as a detection side, and the detection side acquires specific information from the detected person. Function. In the present embodiment, as the IC card reader 7, an outer IC card reader 7a disposed outside the management area AR0 and an inner IC card reader 7b disposed inside the management area AR0 are provided, and the outer IC card reader is provided. 7a corresponds to an example of the outer unique information acquisition means, and functions to acquire unique information from the detected person outside the management area AR0 (specifically, read the unique ID recorded on the IC card). The inner IC card reader 7b corresponds to an example of inner unique information acquisition means, and acquires unique information from the detected person inside the management area AR0 (specifically, reads the unique ID recorded on the IC card). ) Works like this. In FIGS. 1 and 2, the detected person existing in the external area AR4 outside the management area AR0 is conceptually indicated by the symbol P.

Next, the overall configuration of the laser scanner 10 will be described with reference to FIG.
As shown in FIG. 3, the laser scanner 10 lasers the detection area set within a predetermined range from the entrance 3 (entrance / exit) on the detection side set inside and / or outside the management area AR0. It functions to scan with light. In the example of FIG. 3, a first laser scanner 10 a and a second laser scanner 10 b are provided as the laser scanner 10. The first laser scanner 10a scans the first detection area AR1 set within the first predetermined range from the entrance 3 (entrance / exit) in the external area AR4 outside the management area AR0 with the laser light L1. It is configured. The second laser scanner 10b is configured to scan the inside of the second detection area AR2 set in the second predetermined range from the entrance 3 (entrance / exit) with the laser light L1 inside the management area AR0. Has been.

  Each laser scanner 10 is configured as shown in FIG. 3, and includes a laser diode 310 and a photodiode 320 that receives the reflected light L2 from the detection object, and can detect the distance and direction to the detection object. It is configured as a device.

  The laser diode 310 corresponds to an example of “laser light generation means”, receives a pulse current from a drive circuit (not shown) under the control of the control circuit 370, and receives a pulse laser light (laser light L1) corresponding to the pulse current. ) Is emitted intermittently. In the present embodiment, laser light from the laser diode 310 to the detection object is conceptually indicated by a symbol L1, and reflected light from the detection object to the photodiode is conceptually indicated by a symbol L2. Yes.

  The photodiode 320 receives the reflected light L2 and converts it into an electrical signal when the laser light (pulse laser light) L1 is generated from the laser diode 310 and the laser light L1 is reflected by the detection object. In addition, about the reflected light from a detection object, the thing of a predetermined area is taken into the deflection | deviation part 341, and in FIG. 3, the example in which the reflected light of the area | region between two lines shown by the code | symbol L2 is taken in is shown. ing.

  A lens 360 is provided on the optical axis of the laser light L1 emitted from the laser diode 310. The lens 360 is configured as a collimating lens, and converts the laser light L1 from the laser diode 310 into parallel light. A mirror 330 is provided on the optical path of the laser light L1 that has passed through the lens 360. The mirror 330 includes a reflection surface 330 a that is inclined with respect to the optical axis of the laser beam L 1 that has passed through the lens 360, and reflects the laser beam L 1 that has passed through the lens 360 toward the rotation deflection mechanism 340. In the present embodiment, the horizontal laser beam L1 that has passed through the lens 360 is reflected by the mirror 330 in the vertical direction (a direction parallel to a central axis 342a described later), and the reflected vertical laser beam L1 is rotated. The light is incident on the deflection unit 341 of the dynamic deflection mechanism 340.

  The rotation deflection mechanism 340 includes a deflection unit 341 made of a mirror having a flat reflecting surface 341a, a support base 343 that supports the deflection unit 341, a shaft part 342 connected to the support base 343, and the shaft part. And a bearing (not shown) that rotatably supports 342.

  The deflecting unit 341 is disposed on the optical axis of the laser beam L1 reflected by the mirror 330 and is rotatable about a central axis 342a (predetermined central axis). The deflecting unit 341 is configured to deflect (reflect) the laser light L1 from the laser diode 310 toward the space and deflect (reflect) reflected light L2 from the detection object toward the photodiode 320. .

In addition, the direction of the central axis 342a serving as the rotation center of the deflecting unit 341 substantially coincides with the direction of the laser light L1 incident on the deflecting unit 341 from the mirror 330, and the incident light on which the laser light L1 enters the deflecting unit 341. The position P1 is a position on the central axis 342a.
In the present embodiment, the direction of the central axis 342a is the vertical direction (Y-axis direction), and the plane direction orthogonal to the central axis 342a is the horizontal direction. Further, a predetermined direction in the horizontal direction is shown as the X-axis direction.

  As shown in FIG. 3, the reflecting surface 341a of the deflecting unit 341 is inclined at an angle of 45 ° with respect to the vertical direction (the direction of the laser light L1 incident on the reflecting surface 341a), and is incident from the mirror 330 side. The laser beam L1 is reflected in the horizontal direction. Further, since the deflecting unit 341 rotates around the central axis 342a in the direction coinciding with the direction of the incident laser beam L1, the incident angle of the laser beam L1 is always maintained at 45 ° regardless of the rotational position of the deflecting unit 41. The direction of the laser beam L1 from the position P1 is configured to be constantly in the horizontal direction (direction orthogonal to the central axis 342a).

  Further, in the laser scanner 10 according to the present embodiment, the deflection region that deflects the reflected light in the deflecting unit 341 (the region of the reflecting surface 341a in the deflecting unit 341) is the reflecting region that reflects the laser light in the mirror 330 (in the mirror 330). It is configured to be sufficiently larger than the area of the reflecting surface 330a.

  Further, a motor 350 for driving the rotation deflection mechanism 340 is provided. The motor 350 rotates the shaft portion 342 to rotationally drive the deflection unit 341 connected to the shaft portion 342. In addition, as a specific configuration of the motor 350, for example, a servo motor or the like may be used, or a pulsed laser beam is output in synchronization with a timing at which the deflecting unit 341 faces a direction in which distance measurement is desired, using a motor that rotates regularly. Thus, detection of a desired direction may be possible. In the present embodiment, as shown in FIG. 3, a rotation angle position sensor 352 that detects the rotation angle position of the shaft portion 342 of the motor 350 (that is, the rotation angle position of the deflection unit 341) is provided. As the rotation angle position sensor 352, various types of sensors can be used as long as they can detect the rotation angle position of the shaft portion 342, such as a rotary encoder.

  A condensing lens 362 that condenses the reflected light toward the photodiode 320 is provided on the optical path of the reflected light L2 from the rotation deflection mechanism 340 to the photodiode 320, and the condensing lens 362 and the photodiode. A filter 364 is provided between 320. The condensing lens 362 collects the reflected light L2 from the deflecting unit 341 and guides it to the photodiode 320, and functions as a condensing unit. The filter 364 functions to transmit the reflected light L2 and remove light other than the reflected light L2 on the optical path of the reflected light L2 from the rotation deflection mechanism 340 to the photodiode 320. The filter 364 is configured by a wavelength selection filter that transmits only light having a specific wavelength corresponding to the reflected light L2 (for example, light having a wavelength in a certain region) and blocks other light, for example.

  In this embodiment, the laser diode 310, the photodiode 320, the mirror 330, the lens 360, the rotation deflection mechanism 340, the motor 350, and the like are housed in the case 303, and dust protection and impact protection are achieved. A window-shaped light guide 304 that allows the laser light L1 and the reflected light L2 to pass therethrough is formed around the deflection unit 341 in the case 303 so as to surround the deflection unit 341. The light guide unit 304 has an annular shape centering on the optical axis of the laser beam L1 incident on the deflecting unit 341, and is configured to extend approximately 360 °. A laser light transmission plate 305 made of, for example, is disposed to prevent dust.

  In this laser radar device, the relative rotation position of the deflecting unit 341 when a predetermined reference position (for example, the origin position of the rotary encoder) is used as a reference can be detected. With reference to the “reference position”, each rotation position of the deflecting unit 341 at the time of each irradiation of the pulsed laser light irradiated intermittently can be detected (that is, each rotation position at each irradiation is It is possible to detect how much the position is rotated with reference to the “reference position”). In the examples of FIGS. 1 and 4, the irradiation direction of the laser light when the deflecting unit 341 is at the reference position is the reference direction, and is indicated by the symbol F.

  When the reflected light from the detection object is received by the photodiode 320 at any of the rotation positions, the angle of the deflection unit 341 at the time of the light reception is an angle rotated from the “reference position”. It is possible to identify whether there is. Therefore, the direction of the detection object can be detected using the reference direction as the irradiation direction of the laser beam L1 emitted from the deflecting unit 341 at the “reference position”. In addition, when the light is received by the photodiode 320 in this way, the laser light is measured by measuring the time from when the laser light L1 is output by the laser diode 310 until the reflected light L2 is detected by the photodiode 320. The distance to the detected object can be obtained in consideration of the speed of light (speed of light).

  Since the laser scanner 10 can determine the direction of the detected object with respect to the reference direction F and the distance to the detected object as described above, the relative position of the detected object with respect to the laser scanner 10 can be specified when the object is detected. . In the laser scanner 10, an area (detection area) for monitoring an object is set in advance. For example, as shown in FIG. 1 and FIG. 4, the first laser scanner 10a is located outside the management area AR0 in the first detection area AR1 set within a first predetermined range from the entrance 3 (entrance / exit). It is configured to scan with laser light. More specifically, in the first laser scanner 10a, a range surrounded by coordinates A1, A2, A3, and A4 (within a bold line frame in FIG. 4) defined based on a predetermined reference direction F1 is first detected. Area AR1. The laser scanner 10a determines that the object is detected if the coordinates of the detected object are within the detection area AR1, and ignores the detection if the coordinates of the detected object are outside the detection area AR1 ( That is, it is not determined as object detection). The same applies to the second laser scanner 10b, and the second detection area AR2 set within the second predetermined range from the entrance 3 (entrance / exit) to the outside of the management area AR0 is scanned with the laser beam. It is configured.

(Control processing in the traffic management system)
Next, control processing performed in the traffic management system 1 will be described.
FIG. 5 is a flowchart illustrating the flow of the passage monitoring process performed by the controller. FIG. 6 is a flowchart illustrating the flow of authentication processing. FIG. 7 is a flowchart illustrating the flow of the unlock determination process. FIG. 8 is an explanatory diagram for explaining a state of entering the room from the outside after unlocking.

  The passage monitoring process shown in FIG. 5 is started when a predetermined condition is satisfied (for example, when the power is turned on or a predetermined start operation is performed by the user). In this process, first, at the entrance 3 (entrance / exit). It is determined whether or not the door 5 (door) is open (S1). In S1, specifically, it is determined whether or not the electric lock 6 is in an unlocked state. If it is determined that the electric lock 6 is released and the door 5 is open, Yes in S1. The process proceeds to S2 and subsequent steps. On the other hand, when it is determined that the electric lock 6 is locked and the door 5 is closed, the process proceeds to No in S1, maintains the electric lock 6 in the locked state (S6), and performs the unlock determination process. (S7).

  When the process proceeds to Yes in S1, it is determined whether there is an object (person) that has passed through the detection area (S2). For example, when an object is detected by the first laser scanner 10a and the object detection by the first laser scanner 10a is completed, the object is detected by the second laser scanner 10b within a certain time. It is determined that an object (person) has passed inward. As shown in FIG. 8, when a person enters the inside from the outside of the management area AR0 (side of the area AR4), even when the person is outside the management area AR0 (side of the area AR4) as shown in FIG. Even when 5 is opened to enter the management area AR0, it is detected by the first laser scanner 10a. After that, when the door 5 is closed to some extent after entering the management area AR0, it is not detected by the first laser scanner 10a, and this time, it is detected by the second laser scanner 10b. If the detection is made in the correct order, it is determined that the object (person) has passed from the outside to the inside of the management area AR0.

  The reverse is also true. When a person goes from the inside of the management area AR0 to the outside, when the door is opened inside the management area AR0 and after the door is opened, 2 is detected by the second laser scanner 10b. After that, when it moves to face the outside of the door 5 so as to go outside, it is no longer detected by the second laser scanner 10b, and is now detected by the first laser scanner 10a. If the detection is made in the correct order, it is determined that the object (person) has passed from the inside to the outside of the management area AR0.

  The same applies to the case where a plurality of people pass. When a person enters from the outside to the inside of the management area AR0, the first laser scanner 10a passes the person before the door 5 is opened and until the door 5 is closed to some extent. Will be detected respectively. After that, when the door 5 is closed to some extent, the person who has passed through the entrance / exit is detected by the second laser scanner 10b. Therefore, when the detection is made in this order, the two laser scanners have detected them in duplicate. It can be determined that the number of people has entered from the outside to the inside.

  With this configuration, it is possible to detect the number of people who have passed from the outside to the inside of the management area AR0 and the number of people who have passed from the inside to the outside of the management area AR0. After S3, the number of passing people detected in this way is compared with the number of authenticated people, and it is determined whether or not a companion has occurred (S4, S5).

Here, an authentication process which is a premise of the companion determination will be described.
In this embodiment, when the IC card is read by the above-described IC card reader, the authentication process shown in FIG. 6 is performed based on the unique ID (unique information) recorded on the IC card. For example, after the start of the passage monitoring process of FIG. 5, this authentication process is always performed in parallel with the passage monitoring process. First, it is determined whether or not an authentication request has occurred (S10). In the process of S10, it is determined whether the IC card has been read by either the outer IC card reader 7a or the inner IC card reader 7b.

  If the IC card is read by either the outer IC card reader 7a or the inner IC card reader 7b, the process proceeds to Yes in S10, and whether or not the person who requests authentication is a permitted person (passer permitted person). Is determined (S11). In S11, it is determined whether or not the unique ID recorded on the IC card that has been determined to be read in S10 is included in the already registered ID. Proceed to Yes in S11. On the other hand, if the read unique ID is not included in the registration ID, the process proceeds to No in S11. The registration ID can be stored in the memory 9c, for example.

  If the process proceeds to Yes in S11, the number of authenticated persons is counted up (S12). In the present embodiment, the number of persons authenticated by reading with the outer IC card reader 7a (number of permitted outer persons) and the number of persons authenticated by reading with the inner IC card reader 7b (number of permitted inner persons) are managed separately. If the determination in S11 is based on reading by the outside IC card reader 7a, the number of outside authorized persons is counted up. If the determination in S11 is based on reading by the inner IC card reader 7b, the number of inner authorized persons is counted up. In this way, by continuously performing the authentication process, the number of permitted inner persons and the permitted number of permitted outer persons are counted up each time the authentication through the outer IC card reader 7a and the inner IC card reader 7b is successful. (Ie, add 1).

Returning to FIG. 5, the description of the passage monitoring process will be continued.
As described above, in the present embodiment, it is possible to detect the number of people who have passed from the outside to the inside of the management area AR0 and the number of people who have passed from the inside to the outside of the management area AR0. When the passage in the direction is detected, the number of authorized persons (number of authorized persons) is counted down according to the passing direction (subtract 1). For example, when the passage from the outside to the inside of the management area AR0 is detected during the standby process in S2 (that is, during the repetition of No in S2) and the process proceeds to Yes in S2, the number of outside authorized persons Subtract 1 from On the contrary, when the passage from the inside to the outside of the management area AR0 is detected during the standby process in S2 (that is, while No in S2 is repeated), the process proceeds to Yes in S2. Subtract 1 from the number of people.

  After the process of S3, it is determined whether or not both the number of outside permitters and the number of inside permitters are 0 or more (S4). If it is 0 or more, the process proceeds to Yes in S4, and S1 The subsequent processing is repeated. On the other hand, if either the number of outside permitters or the number of inside permitters is less than 0, the process proceeds to No in S4. When proceeding to No in S4, the number of persons who have entered from one to the other is greater than the number of authorized persons outside or inside the management area AR0, so it is determined that a companion has occurred. Then, an alarm is issued (S5). In the process of S5, for example, control may be performed to sound the buzzer 8, or alarm information may be issued to a management device (not shown). Alternatively, a warning light or the like may be turned on.

  In the present embodiment, the control unit 9a that performs the process of FIG. 6 corresponds to an example of the authorized person number detecting unit, and includes the unique information acquired by the unique information acquiring unit and the preregistered authorized person information. Based on this, it functions to detect the number of pass-permitters present on the detection side. Specifically, the control unit 9a functions as an outside authorized person number detecting means and an inside authorized person number detecting means, and the outside IC card reader 7a (outside unique information obtaining means) is used to cover the area outside the management area AR0. Based on the unique ID (unique information) acquired from the IC card of the detector and the information on the authorized person registered in advance (registered ID registered in the memory 9c), the number of permitted persons outside the management area AR0. Is detected. In addition, the control unit 9a uses a unique ID (unique information) acquired from the IC card of the detected person inside the management area AR0 by the inner IC card reader 7b (inner unique information acquisition means) and an authorized person registered in advance. The number of pass-permitted persons inside the management area AR0 is detected based on the above information (registered IC registered in the memory 9c).

  The control unit 9a and the laser scanner 10 correspond to counting means, and count passing candidates who are going to pass through the entrance 3 (entrance / exit) from the detection side when the entrance 3 (entrance / exit) is not locked. To function. Further, the control unit 9a corresponding to the comparison determination unit can determine whether or not the counted number of passing candidates exceeds the number of permitted passers detected by the permitted number of people detecting unit. Further, the control unit 9a and the buzzer 8 correspond to an example of an alarm unit, and function to issue an alarm when the number of pass candidates counted by the count unit exceeds the number of passers.

Next, the unlocking determination process performed in S7 will be described.
With the start of the unlocking determination process of S7, as shown in FIG. 7, first, scanning by the laser scanner 10 is started. As a result, both the first laser scanner 10a and the second laser scanner 10b start to operate, and the operation of the laser light is performed inside and outside the management area AR0.

  After that, when an object (person) is detected by either the first laser scanner 10a or the second laser scanner 10b, the process proceeds to Yes in S22, and either inside or outside the management area AR0, The actual number of people in the detection area (the number of people present) is compared with the number of people who have already been authenticated (the number of people permitted to pass) (S23). Specifically, the number of objects detected in the first detection area AR1 by laser scanning with the first laser scanner 10a (that is, the actual number of outside persons) and the outside permission at the present time (that is, the processing time of S23). The number of persons is compared to determine whether they match. Similarly, the number of objects detected in the second detection area AR2 by laser scanning with the second laser scanner 10b (that is, the inner actual number of persons) and the number of inner permitted persons at the present time (that is, at the time of processing in S23) Are compared to determine whether they match.

  In the present embodiment, the control unit 9a and the laser scanner 10 correspond to an example of “real person detection means”, and the actual number of persons in the detection area is detected based on the object detection result in the detection area by the laser scanner. To function. Specifically, the control unit 9a and the first laser scanner 10a correspond to an example of an outside real number detection unit, and based on the object detection result in the first detection area AR1 by the first laser scanner 10a. The actual number of persons in the first detection area AR1 is detected. In addition, the control unit 9a and the second laser scanner 10b correspond to an example of an inner real number detection means, and the second laser scanner 10b is used to detect the first detection result in the second detection area AR2. The actual number of people in the second detection area AR2 is detected.

  After S23, it is determined whether or not the outer actual number of persons and the outer permitted number of persons match, and the inner actual number of persons and the inner permitted number of persons match. When both are in the coincidence state, the process proceeds to Yes in S24, and the electric lock 6 is switched to the unlocked state. On the other hand, if at least one of them is not in a coincidence state, the process proceeds to No in S24 and is in a locked state (S26).

  Note that the control unit 9a that executes the processes of S23 and S24 corresponds to an example of a comparison determination unit, and the number of permitted persons detected by the permitted number of persons detection unit and the actual number of persons detected by the actual number of persons detection unit. Are compared to determine whether or not they match. Specifically, the control unit 9a functions as a first comparison / determination unit, and the number of outside passage permitters detected by the outside permitter number detecting unit and the first number detected by the outside real number detecting unit. The actual number of people in the detection area is compared to determine whether or not they match. The control unit 9a also functions as a second comparison / determination unit, and the number of inner passage permitted persons detected by the inner permitted person number detecting unit and the second detection detected by the inner actual number detecting unit. A comparison is made with the actual number of people in the area to determine whether or not they are in agreement.

  In addition, the control unit 9a and the electric lock 6 that execute the processes of S24, S25, and S26 correspond to an example of the unlocking control unit, and it is determined by the comparison determination unit that the number of pass-permitted persons and the actual number of persons match. It functions so that the doorway 3 (entrance / exit) is in an unlocked state on condition that it is done. Specifically, the entrance / exit is set to the unlocked state on condition that both the first comparison determination unit and the second comparison determination unit determine that they match.

  If it is determined in S24 that they do not match, notification processing such as ringing of the buzzer 8 or lighting of the lamp may be performed in S26. In this case, the control unit 9a and the buzzer 8 correspond to an example of “notification unit”, and function to perform notification when the comparison determination unit determines that the number of persons permitted to pass and the actual number of people are not in agreement. .

  In the example of FIG. 7, when the electric lock 6 is in the locked state, the first laser scanner 10a and the second laser scanner 10b continuously perform scanning. It may be performed only when it exists. For example, in the laser scanning by the first laser scanner 10a and the second laser scanner 10b, after an authentication request is issued from either the outer IC card reader 7a or the inner IC card reader 7b, the number of outside permitted persons and the number of permitted inner persons are obtained. Laser scanning is performed by the first laser scanner 10a and the second laser scanner 10b when both the number of outside permitters and the number of inside permitters are both 0 for a certain time or more. Any of them may be stopped. In this case, the control unit 9a corresponding to the comparison determination unit does not perform the determination process while the laser scanning by the first laser scanner 10a and the second laser scanner 10b is stopped. The locked state will be maintained. On the other hand, after the unique information is acquired by the outer IC card reader 7a or the inner IC card reader 7b (unique information acquisition means), the processing after S1 is performed. It is determined whether the number of people and the number of actual people are in agreement.

(Main effects of the first embodiment)
In the traffic management system 1 according to the present embodiment, “unique information acquisition means” is provided, and at least one of the outside and inside of the management area AR0 (both sides in FIG. 1 and the like) is the detection side, Specific information is acquired from the detected person. Then, the “permitted number detection means” detects the number of permitted passers present on the detection side based on the acquired unique information and information of the permitted permit registered in advance. According to this configuration, the specific information actually acquired from the detected person can be surely confirmed in light of the registered permitter information, and the number of permitted passers on the detection side can be accurately grasped.

  Furthermore, “real number detection means” provided with a laser scanner 10 is provided, and a detection area set in a predetermined range from the entrance 3 (entrance / exit) on the detection side is scanned with laser light, and the detection is performed. Based on the object detection result in the area, the actual number of people in the detection area is detected. Thus, if the actual number of people in the detection area is grasped by laser scanning, the accuracy of detecting the number of existing people is significantly increased compared to other human sensors (infrared sensors or the like).

  Further, “comparison determination means” is provided, and the number of permitted persons detected in this way is compared with the actual number of persons to determine whether or not they are in agreement. Then, on the condition that it is determined that the number of persons permitted to pass and the actual number of persons are in agreement, the “unlocking control means” switches the entrance 3 (entrance / exit) to the unlocked state. According to this configuration, it is more accurately determined whether the actual number of persons near the entrance 3 (entrance / exit) corresponds to the already permitted person based on the number of pass-permitted persons and the actual number of persons detected with high accuracy. Judgment can be made. Since the entrance / exit 3 (entrance / exit) is unlocked on the condition that the coincidence state is judged, when a person other than the permitter is going to enter with the permitter (that is, co-payment) Can be detected more reliably and unlocking can be stopped, and the occurrence of co-occurrence can be prevented in advance.

Further, in the present embodiment, the “comparison determination unit” determines whether or not the number of persons permitted to pass and the number of actual persons are in agreement after the specific information is acquired by the “unique information acquisition unit”. ing. Furthermore, “notification means” can be set up, so that notification can be made when it is determined by the “comparison judgment means” that the number of persons permitted to pass and the actual number of persons are not in agreement. .
According to this configuration, the unique information is acquired, and the time when the detector related to the unique information tries to pass through the entrance 3 (entrance / exit) (that is, the time when the unlocking determination is required) is selected and passed. It is possible to determine the coincidence state between the number of permitted persons and the actual number of persons, and the coincidence state is not determined in the dark clouds. And when it is not in a coincidence state, it can alert | report that and can raise attention and can improve security. Further, since the notification is not performed by judging the coincidence state with the dark clouds, the notification is not performed without darkness at a time when it is unlikely that the permitted person passes the entrance / exit.

Further, in the present embodiment, “counting means” is provided in the “real number detection means”. This “counting means” counts passing candidates who attempt to pass through the entrance 3 (entrance / exit) from the detection side when the entrance 3 (entrance / exit) is not locked. Further, the “comparison determination means” can determine whether or not the number of passing candidates counted by the counting means exceeds the number of permitted passers detected by the permitted number detection means. Furthermore, it is possible to install an “alarm means”, whereby an alarm can be issued when the number of pass candidates counted by the count means exceeds the number of pass-permitted persons.
In this configuration, even if a third party (who is not allowed to pass) tries to jump into the entrance 3 (entrance / exit) after the matching state is confirmed and unlocked, or such a third party Even if it passes through the entrance 3 (entrance / exit), it is possible to compare the number of persons permitted to pass and the actual number of persons, detect such illegal passage more reliably, and issue an alarm. Therefore, it is possible to reliably detect a companion due to a jump-in after unlocking, and to prompt a related person (for example, an entrance / exit security manager) to respond.

Further, in this embodiment, as the “unique information acquisition means”, “outside unique information acquisition means” for obtaining unique information from the detected person outside the management area, and unique information from the detected person inside the management area. An “inner unique information acquisition unit” for acquiring is provided.
Further, as the “permitted person number detecting means”, an “outer permitted person number detecting means” and an “inner permitted person number detecting means” are provided. The “outside authorized person number detection means” is based on the unique information acquired from the detected person outside the management area by the “outside unique information acquisition means” and the information of the authorized person registered in advance. The number of permitted passers outside is detected. Further, the “inner authorized person number detecting means” is based on the unique information acquired from the detected person inside the managed area by the “inner unique information obtaining means” and the information of the authorized person registered in advance. The number of permitted passers inside is detected.
According to this configuration, the number of pass-permitted persons can be accurately grasped both inside and outside the entrance / exit (entrance / exit 3).

Furthermore, “outer real number detection means” and “inner real number detection means” are provided as “real number detection means”. Then, the “outside real number detection means” is configured to scan the inside of the first detection area AR1 set in the first predetermined range from the entrance / exit (entrance / exit 3) outside the management area AR0 with the laser beam. The laser scanner 10a is provided, and the actual number of persons in the first detection area AR1 is detected based on the object detection result in the first detection area AR1 by the first laser scanner 10a. Further, the “inner actual number detection means” is a second laser scanner 10b that scans the inside of the second detection area AR2 set within the second predetermined range from the entrance / exit 3 with the laser light inside the management area AR0. The actual number of persons in the second detection area AR2 is detected based on the object detection result in the second detection area AR2 by the second laser scanner 10b.
According to this configuration, the actual number of persons can be detected more accurately both inside and outside the entrance / exit (entrance / exit 3).

Furthermore, as the “comparison determination means”, “first comparison determination means” and “second comparison determination means” are provided. Then, the “first comparison determination means” includes the number of outside passage permitters detected by the “outside authorized person number detection means” and the first detection area detected by the “outside real number detection means”. It is judged whether or not they are in agreement with each other. Further, the “second comparison determination means” includes the number of inner passage permitted persons detected by the “inner permitted person number detection means” and the second detection area detected by the “inner real number detection means”. It is judged whether or not they are in agreement with each other.
Then, the “unlock control means” unlocks the entrance / exit (entrance / exit 3) on condition that both the “first comparison determination means” and the “second comparison determination means” determine that they are in the same state. State.
According to this configuration, it is possible to more accurately determine whether the actual number of people near the entrance / exit (entrance / exit 3) corresponds to an already authorized person both inside and outside the entrance / exit (entrance / exit 3). can do. Then, since the electric lock 6 provided at the entrance / exit (entrance / exit 3) is unlocked on the condition that the coincidence state is determined on both sides, it can be shared either inside or outside the entrance / exit (exit / exit 3). When there is a state where accompanying can occur, it is possible to detect such a state more reliably and stop the unlocking, and it is possible to make the countermeasures together more thorough.

[Other Embodiments]
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  In the above embodiment, a room (indoor) is illustrated as an example of a management area, but a hospital, company, building, factory, government office facility, building such as a house is a management area, and entrance / exit of this management area ( For example, it may be a system that manages traffic at the entrance. Alternatively, the system may be a system in which a specific site is used as a management area, and entrance / exit of this site (for example, a gate arranged on a company site) is managed.

  In the above embodiment, an example in which the laser scanner 10 and the IC card reader 7 are provided both inside and outside the management area has been described. However, these are provided only on one side (for example, outside the management area). It may be done.

In the above-described embodiment, an example of counting the passage of the entrance / exit is shown, but the counting may be performed by a method other than the above-described embodiment. For example, the control unit 9a and the first laser scanner 7a function as counting means, and outside the management area AR0, from the outside predetermined position (first position) where the outside IC card reader 7a is installed to the outside predetermined position. A passage management area is set up to a predetermined second position (boundary of the area AR5) closer to the entrance 3 (entrance / exit) than the (first position), and moves in the passage management area and the second The number of people who have reached the position (boundary of the area AR5) may be counted as passing candidates. Similarly, the control unit 9a and the second laser scanner 7b are caused to function as counting means, and the inner predetermined position is changed from the inner predetermined position (first position) where the inner IC card reader 7b is installed inside the management area AR0. A passage management area is set between the position (first position) and a predetermined second position (boundary of the area AR6) closer to the entrance / exit 3 (entrance / exit), and moves within the passage management area. The number of people who have reached position 2 (the boundary of the area AR6) may be counted as passing candidates.
In this configuration, when the authorized person (who can be authenticated by the unique information) reaches the second position, it is highly likely that the authorized person has already been recognized as a pass-permitted person. It becomes difficult to be counted as a passage candidate before being authenticated as a passage permitter. Therefore, it becomes easy to avoid a situation where a passer and a pass candidate are compared in a state where a legitimate person (having specific information and a person who is going to receive authentication) is mixed before being authenticated, It becomes easier to accurately determine whether or not there is only a regular person near the entrance / exit.

1 ... Traffic management system 3 ... Entrance / exit
6 ... Electric lock (unlocking control means)
7. IC card reader (unique information acquisition means)
7a: outside IC card reader (outside unique information acquisition means)
7b ... Inner IC card reader (inner unique information acquisition means)
8 ... Buzzer (notification means, warning means)
9 ... Controller 9a ... Control circuit (permitted number detection means, actual number detection means, comparison judgment means, unlocking control means, notification means, counting means, warning means, outer permitted number detection means, inner permitted number detection means , First comparison judgment means, second comparison judgment means)
10 ... Laser scanner (actual number detection means)
10a ... 1st laser scanner (outside real number detection means)
10b ... Second laser scanner (inner real number detection means)
AR0 ... Management area AR1 ... First detection area AR2 ... Second detection area

Claims (5)

A traffic management system for managing traffic at the entrance and exit of a management area,
Specific information acquisition means for acquiring at least one of the outside and inside of the management area as a detection side and acquiring specific information from the detected person on the detection side;
Based on the unique information acquired by the unique information acquisition means and information on the authorized person registered in advance, the number of authorized persons detecting means for detecting the number of permitted persons existing on the detection side;
A laser scanner that scans a detection area set within a predetermined range from the entrance and exit on the detection side with a laser beam, and based on an object detection result in the detection area by the laser scanner, Real number detection means for detecting the real number of people,
Comparison determination means for comparing the number of permitted persons detected by the permitted person number detection means with the actual number of persons detected by the actual number detection means to determine whether or not they are in agreement.
Unlocking control means for bringing the entrance / exit into an unlocked state on the condition that the comparison judging means determines that the number of permitted persons and the actual number of persons are in agreement with each other,
A traffic management system characterized by comprising: The comparison determination means determines whether or not the number of persons permitted to pass and the actual number of persons are in agreement after the specific information is acquired by the specific information acquisition means,
2. The traffic according to claim 1, further comprising a notifying means for notifying when the comparison determining means determines that the number of persons permitted to pass and the actual number of persons are not in agreement. Management system. The real number detection means includes a counting means for counting a passing candidate who tries to pass through the entrance / exit from the detection side when the entrance / exit is not locked.
The comparison determination means is capable of determining whether or not the number of passing candidates counted by the counting means exceeds the number of permitted passers detected by the permitted person number detection means.
The traffic management according to claim 1 or 2, further comprising warning means for issuing an alarm when the number of passing candidates counted by the counting means exceeds the number of allowed passers. system. The unique information acquisition means is arranged at a predetermined first position away from the entrance / exit,
The counting means passes on the detection side from the first position where the unique information acquisition means is installed to a predetermined second position closer to the entrance / exit than the first position. The traffic management system according to claim 3, wherein a management area is set, and the number of persons who have moved within the passage management area and have reached the second position is counted as the passage candidates. The unique information acquisition means includes
Outside specific information acquisition means for acquiring specific information from the detected person outside the management area;
Inside unique information acquisition means for acquiring the unique information from the detected person inside the management area,
With
The permitter number detection means includes:
Based on the unique information acquired from the detected person outside the management area by the outside specific information acquisition means and the information of the permitter registered in advance, the number of permitted persons outside the management area is detected. Means for detecting the number of permitted outside persons,
Based on the unique information acquired from the detected person inside the management area by the inner unique information acquisition means and the information of the permitter registered in advance, the number of permitted persons inside the management area is detected. Means for detecting the number of permitted insiders,
With
The real number detection means is
A first laser scanner that scans a first detection area that is set within a first predetermined range from the entrance / exit with a laser beam outside the management area, wherein the first laser scanner performs the first laser scanner. Outer real number detection means for detecting the actual number of persons in the first detection area based on the object detection result in the detection area of
A second laser scanner that scans a second detection area set within a second predetermined range from the entrance / exit with a laser beam inside the management area, the second laser scanner using the second laser scanner Inner real number detection means for detecting the actual number of persons in the second detection area based on the object detection result in the detection area of
With
The comparison determination means includes
The number of allowed outside passers detected by the outside permitted person number detecting means and the number of actual persons in the first detection area detected by the outside actual number of persons detecting means are in agreement. First comparison judgment means for judging whether or not,
The number of persons allowed to pass inside detected by the inner number of permitted persons detecting means is compared with the number of actual persons in the second detection area detected by the inner actual number of persons detecting means. A second comparison judgment means for judging whether or not,
With
The unlocking control means sets the entrance / exit to the unlocked condition on condition that both the first comparison judging means and the second comparison judging means judge the coincidence state. The traffic management system according to any one of claims 1 to 4.

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