JP6721126B2 - Traffic detection system - Google Patents

Description

The present invention relates to a traffic detection system.

Patent Document 1 discloses a traffic detection system. According to the traffic detection system, even when a plurality of gates are adjacent to each other, the gate through which the user has passed can be determined.

Japanese Unexamined Patent Publication No. 2007-094896

However, the traffic detection system described in Patent Document 1 cannot detect the position of the user in the front-rear direction of the gate. Therefore, the moving direction of the user cannot be determined.

The present invention has been made to solve the above problems. An object of the present invention is to provide a traffic detection system that can determine a gate that a user has passed and a moving direction of the user even when a plurality of gates are adjacent to each other.

A traffic detection system according to the present invention is provided on one side of an entrance side of a gate provided at a boundary between an outside and an inside of a management area where a user's entry/exit is controlled, and a detection radio wave is provided at the entrance side of the gate. A first entrance side reading device, a second entrance side reading device provided on the other side of the entrance side of the gate and transmitting a detection radio wave to the entrance side of the gate, and one side of the exit side of the gate A first exit side reading device which is provided on the exit side of the gate and transmits the detection radio wave, and a second exit side which is provided on the other side of the exit side of the gate and transmits the detection radio wave to the exit side of the gate The tag is present on the entrance side of the gate when the response radio wave transmitted from the tag that receives the detection radio waves from the reading device, the first entrance side reading device and the second entrance side reading device is received. That the tag exists on the exit side of the gate when the response radio wave transmitted from the tag that receives the detection radio waves from the first exit side reading device and the second exit side reading device is received. And a passage detecting device that detects the moving direction of the tag based on the reception result of the response radio wave from the tag , wherein the passage detecting device comprises the first entrance-side reading device and the second entrance. Receiving detection radio waves from the side reading device, receiving detection radio waves from the entrance side sub-control device that receives the response radio waves transmitted from the tag, the first exit side reading device, and the second exit side reading device Main control for detecting the moving direction of the tag based on the reception result of the response radio wave by the exit side sub-control device receiving the response radio wave transmitted from the tag and the entrance side sub-control device and the exit side sub-control device A device, the entrance side sub-control device adjusts the timing at which the first entrance side reading device and the second entrance side reading device transmit detection radio waves, and the exit side sub-control device comprises: The timing at which the first exit side reading device and the second exit side reading device transmit detection radio waves is adjusted .

According to the present invention, in the traffic detection device, the tag is present on the entrance side of the gate when the first entrance side reading device and the second entrance side reading device receive the response radio wave transmitted from the same tag. To detect. The passage detection device detects that the tag exists on the exit side of the gate when the first exit side reading device and the second exit side reading device receive the response radio wave transmitted from the same tag. The passage detection device detects the moving direction of the tag based on the reception result of the response radio wave by the first entrance side reading device, the second entrance side reading device, the first exit side reading device, and the second exit side reading device. Therefore, even when a plurality of gates are adjacent to each other, it is possible to determine the gate through which the user has passed and the moving direction of the user.

FIG. 1 is a plan view of a gate to which a traffic detection system according to Embodiment 1 of the present invention is applied. It is a block diagram of the traffic detection system in the form 1 of the actual condition of this invention. It is a flow chart for explaining the outline of the operation of the tag applied to the traffic detection system in the first embodiment of the present invention. It is a flow chart for explaining the outline of the operation of the entrance side sub-control device of the traffic detection system in the first embodiment of the present invention. It is a flow chart for explaining the outline of the operation of the outlet side sub-control device of the traffic detection system in the first mode of the actual condition of the present invention. It is a flow chart for explaining the outline of the operation of the main control device of the traffic detection system in the first mode of the present invention. It is a hardware block diagram of the entrance side sub-control apparatus of the passage detection system in the form 1 of the actual condition of this invention.

Embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are designated by the same reference numerals. Overlapping description of the relevant parts will be simplified or omitted as appropriate.

Embodiment 1.
FIG. 1 is a plan view of a gate to which a traffic detection system according to Embodiment 1 of the present invention is applied.

In FIG. 1, the management area 1 is set appropriately. For example, the management area 1 is an area in which entry and exit of a user is managed.

The plurality of gates 2 are provided on the boundary between the outside and the inside of the management area 1. For example, the plurality of gates 2 are adjacent to each other.

One of the plurality of opening/closing devices 3 is provided on one of the plurality of gates 2. For example, one of the plurality of opening/closing devices 3 is a pair of flappers. The other of the plurality of opening/closing devices 3 is provided on the other of the plurality of gates 2. For example, the other of the plurality of opening/closing devices 3 is a pair of flappers.

The passage detection system includes a plurality of first entrance side reading devices 4, a plurality of second entrance side reading devices 5, a plurality of first exit side reading devices 6, a plurality of second exit side reading devices 7, and a passage detection device 8. Equipped with.

One of the plurality of first entrance side reading devices 4 is provided at one entrance side of the plurality of gates 2. One of the plurality of first entrance side reading devices 4 is provided so as to be able to transmit a detection radio wave to one entrance side of the plurality of gates 2. The other of the plurality of first entrance side reading devices 4 is provided on one side of the other entrance side of the plurality of gates 2. The other of the plurality of first entrance side reading devices 4 is provided so as to be able to transmit detection radio waves to the other entrance side of the plurality of gates 2.

One of the plurality of second entrance side reading devices 5 is provided on the other side of one entrance side of the plurality of gates 2. One of the plurality of second entrance side reading devices 5 is provided so as to be able to transmit a detection radio wave to one entrance side of the plurality of gates 2. The other of the plurality of second entrance side reading devices 5 is provided on the other side of the other entrance side of the plurality of gates 2. The other of the plurality of second entrance side reading devices 5 is provided so as to be able to transmit detection radio waves to the other entrance side of the plurality of gates 2.

One of the plurality of first exit side reading devices 6 is provided at one exit side of the plurality of gates 2. One of the plurality of first exit side reading devices 6 is provided so as to be able to transmit a detection radio wave to one exit side of the plurality of gates 2. The other of the plurality of first exit side reading devices 6 is provided on one side of the other exit side of the plurality of gates 2. The other of the plurality of first exit side reading devices 6 is provided so as to be able to transmit detection radio waves to the other exit side of the plurality of gates 2.

One of the plurality of second outlet-side reading devices 7 is provided on the other side of one of the plurality of gates 2 on the outlet side. One of the plurality of second exit side reading devices 7 is provided so as to be able to transmit a detection radio wave to one exit side of the plurality of gates 2. The other of the plurality of second exit side reading devices 7 is provided on the other side of the other exit side of the plurality of gates 2. The other of the plurality of second exit side reading devices 7 is provided so as to be able to transmit detection radio waves to the other exit side of the plurality of gates 2.

The traffic detection device 8 includes a matching device 9, a plurality of entrance side sub-control devices 10, a plurality of first entrance side transmission strength adjustment devices 11, a plurality of second entrance side transmission strength adjustment devices 12, and a plurality of exit side sub control devices. 13 and a plurality of first exit side transmission strength adjusting devices 14, a plurality of second exit side transmission strength adjusting devices 15, and a main controller 16.

The matching device 9 stores the identification information corresponding to the user who is permitted to enter the management area 1.

One of the plurality of entrance side sub-control devices 10 is electrically connected to one of the plurality of first entrance side reading devices 4 and one of the plurality of second entrance side reading devices 5. The other of the plurality of entrance side sub-control devices 10 is electrically connected to the other of the plurality of first entrance side reading devices 4 and the other of the plurality of second entrance side reading devices 5.

One of the plurality of first entrance-side transmission intensity adjusting devices 11 is provided in one of the plurality of entrance-side sub-control devices 10. One of the plurality of first entrance-side transmission intensity adjusting devices 11 is provided so as to adjust the transmission intensity of the detected radio wave in one of the plurality of first entrance-side reading devices 4 according to an operation from the outside. The other of the plurality of first entrance-side transmission intensity adjusting devices 11 is provided on the other of the plurality of entrance-side sub-control devices 10. The other of the plurality of first entrance-side transmission intensity adjusting devices 11 is provided so as to be able to adjust the transmission intensity of the detected radio wave in the other of the plurality of first entrance-side reading devices 4 according to an operation from the outside.

One of the plurality of second entrance side transmission intensity adjusting devices 12 is provided in one of the plurality of entrance side sub-control devices 10. One of the plurality of second entrance side transmission intensity adjusting devices 12 is provided so as to adjust the transmission intensity of the detected radio wave in one of the plurality of second entrance side reading devices 5 in accordance with an operation from the outside. The other of the plurality of second entrance side transmission intensity adjusting devices 12 is provided in the other of the plurality of entrance side sub-control devices 10. The other of the plurality of second entrance side transmission intensity adjusting devices 12 is provided so as to be able to adjust the transmission intensity of the detected radio wave in the other of the plurality of second entrance side reading devices 5 in accordance with an operation from the outside.

One of the plurality of outlet side sub-control devices 13 is electrically connected to one of the plurality of first outlet side reading devices 6 and one of the plurality of second outlet side reading devices 7. The other of the plurality of outlet side sub-control devices 13 is electrically connected to the other of the plurality of first outlet side reading devices 6 and the other of the plurality of second outlet side reading devices 7.

One of the plurality of first outlet side transmission intensity adjusting devices 14 is provided in one of the plurality of outlet side sub-control devices 13. One of the plurality of first outlet-side transmission intensity adjusting devices 14 is provided so as to adjust the transmission intensity of the detected radio wave in one of the plurality of first outlet-side reading devices 6 according to an operation from the outside. The other of the plurality of first outlet-side transmission intensity adjusting devices 14 is provided on the other of the plurality of outlet-side sub-control devices 13. The other of the plurality of first exit side transmission intensity adjusting devices 14 is provided so as to be able to adjust the transmission intensity of the detected radio wave in the other of the plurality of first exit side reading devices 6 according to an operation from the outside.

One of the plurality of second outlet side transmission intensity adjusting devices 15 is provided in one of the plurality of outlet side sub-control devices 13. One of the plurality of second exit side transmission intensity adjusting devices 15 is provided so as to be able to adjust the transmission intensity of the detected radio wave in one of the plurality of second exit side reading devices 7 according to an operation from the outside. The other of the plurality of second outlet side transmission intensity adjusting devices 15 is provided on the other of the plurality of outlet side sub-control devices 13. The other of the plurality of second exit side transmission intensity adjusting devices 15 is provided so as to be able to adjust the transmission intensity of the detected radio wave in the other of the plurality of second exit side reading devices 7 in accordance with an operation from the outside.

The main control device 16 is electrically connected to the plurality of inlet side sub-control devices 10 and the plurality of outlet side sub-control devices 13.

For example, the tag 17 is carried by a user who is permitted to enter the management area 1. The tag 17 stores unique identification information.

For example, when the user holds the tag 17 and is present at one entrance side of the plurality of gates 2, the tag 17 is provided at one of the plurality of first entrance side reading devices 4 and the plurality of second entrance side reading devices 5. The detection radio wave is received from one of the two. The tag 17 transmits response radio waves to these detection radio waves. One of the plurality of first entrance side reading devices 4 and one of the plurality of second entrance side reading devices 5 receive the response radio wave transmitted by the tag 17.

At this time, one of the plurality of entrance side sub-control devices 10 detects that the tag 17 is present on one entrance side of the plurality of gates 2. One of the plurality of entrance side sub-control devices 10 grasps the identification information of the tag 17 based on the response radio wave from the tag 17. One of the plurality of entrance side sub-control devices 10 transmits the identification information to the main control device 16.

The main control device 16 does not authenticate the identification information when the identification information is not stored in the matching device 9. The main control device 16 authenticates the identification information when the identification information is stored in the matching device 9. The main control device 16 brings one of the plurality of opening/closing devices 3 into a closed state when the identification information is not authenticated. The main control device 16 opens one of the plurality of opening/closing devices 3 when the identification information is authenticated.

For example, when the user is in the area A on one exit side of the plurality of gates 2 while holding the tag 17, one of the plurality of first exit side reading devices 6 and the plurality of second exits is included in the tag 17. A detection radio wave is received from one of the side reading devices 7. The tag 17 transmits response radio waves to these detection radio waves. One of the plurality of first exit side reading devices 6 and one of the plurality of second exit side reading devices 7 receive the response radio wave transmitted by the tag 17.

At this time, one of the plurality of outlet side sub-control devices 13 detects that the tag 17 is present on one outlet side of the plurality of gates 2. One of the plurality of outlet side sub-control devices 13 grasps the identification information of the tag 17 based on the response radio wave from the tag 17. One of the plurality of outlet side sub control devices 13 transmits the identification information to the main control device 16.

The main control device 16 does not authenticate the identification information when the identification information is not stored in the matching device 9. The main control device 16 authenticates the identification information when the identification information is stored in the matching device 9. The main control device 16 brings one of the plurality of opening/closing devices 3 into a closed state when the identification information is not authenticated. The main control device 16 opens one of the plurality of opening/closing devices 3 when the identification information is authenticated.

The main control device 16 detects the moving direction of the tag 17 based on the detection result of one of the plurality of entrance side sub-control devices 10 and one of the plurality of exit side sub-control devices 13.

For example, when the user carries the tag 17 and is present on the other entrance side of the plurality of gates 2 while the user holds the tag 17, the tag 17 includes the other one of the plurality of first entrance side reading devices 4 and the plurality of second entrance side reading devices 5. The detection radio wave from the other side is received. The tag 17 transmits response radio waves to these detection radio waves. The other of the plurality of first entrance side reading devices 4 and the other of the plurality of second entrance side reading devices 5 receive the response radio wave transmitted by the tag 17.

At this time, the other of the plurality of entrance side sub-control devices 10 detects that the tag 17 is present on the other entrance side of the plurality of gates 2. The other of the plurality of entrance side sub-control devices 10 grasps the identification information of the tag 17 based on the response radio wave from the tag 17. The other of the plurality of entrance side sub-control devices 10 transmits the identification information to the main control device 16.

The main control device 16 does not authenticate the identification information when the identification information is not stored in the matching device 9. The main control device 16 authenticates the identification information when the identification information is stored in the matching device 9. The main control device 16 brings the other of the plurality of opening/closing devices 3 into a closed state when the identification information is not authenticated. The main control device 16 opens the other of the plurality of opening/closing devices 3 when the identification information is authenticated.

For example, when the user holds the tag 17 on the other exit side of the plurality of gates 2 while holding the tag 17, the tag 17 includes the other one of the plurality of first exit side reading devices 6 and the plurality of second exit side reading devices 7. The detection radio wave from the other side is received. The tag 17 transmits response radio waves to these detection radio waves. The other of the plurality of first exit side reading devices 6 and the other of the plurality of second exit side reading devices 7 receive the response radio wave transmitted by the tag 17.

At this time, the other of the plurality of outlet side sub-control devices 13 detects that the tag 17 is present on the other outlet side of the plurality of gates 2. The other of the plurality of outlet side sub control devices 13 grasps the identification information of the tag 17 based on the response radio wave from the tag 17. The other of the plurality of outlet side sub control devices 13 transmits the identification information to the main control device 16.

The main control device 16 does not authenticate the identification information when the identification information is not stored in the matching device 9. The main control device 16 authenticates the identification information when the identification information is stored in the matching device 9. The main control device 16 brings the other of the plurality of opening/closing devices 3 into a closed state when the identification information is not authenticated. The main control device 16 opens the other of the plurality of opening/closing devices 3 when the identification information is authenticated.

The main control device 16 detects the moving direction of the tag 17 based on the detection results of the other of the plurality of entrance side sub-control devices 10 and the other of the plurality of exit side sub-control devices 13.

Next, adjustment of the timing for detecting the tag 17 will be described with reference to FIG.
FIG. 2 is a block diagram of the traffic detection system in the first mode of the present invention.

As shown in FIG. 2, each of the plurality of inlet side sub-control devices 10 and each of the plurality of outlet side sub-control devices 13 includes a master-slave switch 18 and a plurality of timing switches 19. The plurality of inlet side sub-control devices 10 and the plurality of outlet side sub-control devices 13 are electrically connected via a synchronization line 20.

For example, the main/slave switch 18 of any one of the plurality of inlet side sub-control devices 10 and the plurality of outlet side sub-control devices 13 is tilted to the “main” side. As a result, the sub control device becomes a master device. Of the plurality of inlet side sub-control devices 10 and the plurality of outlet side sub-control devices 13, the main/slave switches 18 of each of the remaining plurality of sub-control devices are set to the “subordinate” side. As a result, the remaining sub-control devices become slave devices.

In the master device and each of the remaining sub-control devices, any one of the plurality of timing switches 19 is turned to the “ON” side. The remaining switches of the plurality of timing switches 19 are turned to the “OFF” side.

The master device sequentially transmits information corresponding to each of the plurality of timing switches 19 to the plurality of slave devices via the synchronization line 20.

The master device causes the plurality of reading devices corresponding to the case where the information transmitted by itself is the information corresponding to the timing switch 19 which is turned to the “ON” side to transmit the detection radio wave. At this time, the master device sequentially transmits the detection radio waves to the corresponding reading devices.

Each of the remaining slave devices sends detection radio waves to the corresponding reading devices when the information received from the master device is the information corresponding to the timing switch 19 that is turned to the “ON” side by itself. Send it. At this time, each of the remaining slave devices causes the corresponding reading devices to sequentially transmit detection radio waves.

Next, the outline of the operation of the tag 17 will be described with reference to FIG.
FIG. 3 is a flow chart for explaining the outline of the operation of the tag applied to the traffic detection system in the first embodiment of the present invention.

In step S1, the tag 17 determines whether or not the detection radio wave transmitted from the first entrance side reading device 4 is received. When the tag 17 does not receive the detection radio wave transmitted from the first entrance side reading device 4 in step S1, the tag 17 performs the operation of step S2.

In step S2, the tag 17 determines whether or not the detection radio wave transmitted from the first exit side reading device 6 is received. When the tag 17 does not receive the detection radio wave transmitted from the first exit side reading device 6 in step S2, the tag 17 performs the operation of step S1.

When the tag 17 receives the detection radio wave transmitted from the first entrance side reading device 4 in step S1, the tag 17 performs the operation of step S3. In step S3, the tag 17 determines whether or not the detection radio wave transmitted from the second entrance side reading device 5 is received.

When the tag 17 receives the detection radio wave transmitted from the second entrance side reading device 5 in step S3, the tag 17 performs the operation of step S4.

In step S4, the tag 17 transmits a response radio wave corresponding to the identification information. After that, the tag 17 performs the operation of step S1.

When the tag 17 receives the detection radio wave transmitted from the first exit side reading device 6 in step S2, the tag 17 performs the operation of step S5.

In step S5, the tag 17 determines whether or not the detection radio wave transmitted from the second exit side reading device 7 is received. When the tag 17 does not receive the detection radio wave transmitted from the second exit side reading device 7 in step S5, the tag 17 performs the operation of step S1.

When the tag 17 receives the detection radio wave transmitted from the second exit side reading device 7 in step S5, the tag 17 performs the operation of step S6.

In step S6, the tag 17 transmits a response radio wave corresponding to the identification information. After that, the tag 17 performs the operation of step S1.

Next, the outline of the operation of the entrance side sub-control device 10 will be described with reference to FIG.
FIG. 4 is a flow chart for explaining the outline of the operation of the entrance side sub-control device of the traffic detection system in the first embodiment of the present invention.

In step S11, the entrance side sub-control device 10 determines whether or not the first entrance side reading device 4 receives the response radio wave transmitted from the tag 17. When the first entrance-side reading device 4 does not receive the response radio wave transmitted from the tag 17 in step S11, the entrance-side sub-control device 10 performs the operation of step S11. When the first entrance side reading device 4 receives the response radio wave transmitted from the tag 17 in step S11, the entrance side sub-control device 10 performs the operation of step S12.

In step S12, the entrance side sub-control device 10 determines whether or not the second entrance side reading device 5 receives the response radio wave transmitted from the same tag 17. When the second entrance side reading device 5 does not receive the response radio wave transmitted from the same tag 17 in step S12, the entrance side sub-control device 10 performs the operation of step S11. When the second entrance side reading device 5 receives the response radio wave transmitted from the same tag 17 in step S12, the entrance side sub-control device 10 performs the operation of step S13.

In step S13, the entrance side sub-control device 10 detects that the tag 17 is present on the entrance side of the gate 2. Then, the entrance side sub-control device 10 performs the operation of step S11.

Next, the outline of the operation of the outlet side secondary control device 13 will be described with reference to FIG.
FIG. 5 is a flow chart for explaining the outline of the operation of the outlet side sub-control device of the traffic detection system in the first embodiment of the present invention.

In step S21, the exit side sub-control device 13 determines whether the first exit side reading device 6 receives the response radio wave transmitted from the tag 17. If the first exit-side reading device 6 has not received the response radio wave transmitted from the tag 17 in step S21, the exit-side sub-control device 13 performs the operation of step S21. When the first exit-side reading device 6 receives the response radio wave transmitted from the tag 17 in step S21, the exit-side sub-control device 13 performs the operation of step S22.

In step S22, the exit side sub-control device 13 determines whether or not the second exit side reading device 7 is receiving the response radio wave transmitted from the same tag 17. When the second exit side reading device 7 has not received the response radio wave transmitted from the same tag 17 in step S22, the exit side sub-control device 13 performs the operation of step S21. When the second exit side reading device 7 receives the response radio wave transmitted from the same tag 17 in step S22, the exit side sub-control device 13 performs the operation of step S23.

In step S23, the exit side sub-control device 13 detects that the tag 17 is present on the exit side of the gate 2. After that, the outlet side sub-control device 13 performs the operation of step S21.

Next, the outline of the operation of the main control device 16 will be described with reference to FIG.
FIG. 6 is a flow chart for explaining the outline of the operation of the main control device of the traffic detection system in the first embodiment of the present invention.

In step S31, the main control device 16 determines whether or not the entrance side sub control device 10 has detected the tag 17. When the entrance side sub-control device 10 does not detect the tag 17 in step S31, the main control device 16 performs the operation of step S32.

In step S32, the main control device 16 determines whether or not the outlet side sub control device 13 has detected the tag 17. When the exit side sub control device 13 does not detect the tag 17 in step S32, the main control device 16 performs the operation of step S31.

When the entrance side sub-control device 10 detects the tag 17 in step S31, the main control device 16 performs the operation of step S33. In step S33, the main control device 16 determines whether or not the outlet side sub-control device 13 has detected the tag 17 having the same identification information as the identification information of the tag 17 detected in step S31 within a certain period of time.

When the outlet side secondary control device 13 has not detected the tag 17 within a fixed time in step S33, the main control device 16 performs the operation of step S31.

When the exit side sub control device 13 detects the tag 17 within a certain time in step S33, the main control device 16 performs the operation of step S34. In step S34, main controller 16 detects that tag 17 moves from the entrance side of gate 2 to the exit side. After that, main controller 16 performs the operation of step S31.

When the outlet side sub control device 13 detects the tag 17 in step S32, the main control device 16 performs the operation of step S35. In step S35, the main control device 16 determines whether or not the entrance side sub-control device 10 has detected the tag 17 having the same identification information as the identification information of the tag 17 detected in step S32 within a certain period of time.

When the entrance side sub-control device 10 has not detected the tag 17 within a certain time in step S35, the main control device 16 performs the operation of step S31.

When the entrance side sub-control device 10 detects the tag 17 within a fixed time in step S35, the main control device 16 performs the operation of step S36. In step S36, main controller 16 detects that tag 17 moves from the exit side of gate 2 to the entrance side. After that, main controller 16 performs the operation of step S31.

According to the first embodiment described above, when the passage detection device 8 receives the response radio wave transmitted from the same tag 17 by the first entrance side reading device 4 and the second entrance side reading device 5, It is detected that the tag 17 exists on the entrance side of the gate 2. The passage detection device 8 is such that the tag 17 exists on the exit side of the gate 2 when the first exit side reading device 6 and the second exit side reading device 7 receive the response radio wave transmitted from the same tag 17. To detect. The traffic detector 8 detects the tag 17 based on the reception result of the response radio wave by the first entrance reading device 4, the second entrance reading device 5, the first exit reading device 6, and the second exit reading device 7. Detects the moving direction. Therefore, even when a plurality of gates 2 are adjacent to each other, it is possible to determine the gate 2 through which the user carrying the tag 17 passes and the moving direction of the user.

Specifically, the entrance side sub-control device 10 detects that the tag 17 is present on the entrance side of the gate 2. The exit side sub-control device 13 detects that the tag 17 is present on the exit side of the gate 2. Main controller 16 detects the moving direction of tag 17. Therefore, even if the number of gates 2 is changed, the configuration of the traffic detection system can be easily changed. As a result, it is possible to determine the gate 2 passed by the user who carries the tag 17 and the moving direction of the user while suppressing the cost.

Further, the entrance side sub-control device 10 adjusts the timing at which the first entrance side reading device 4 and the second entrance side reading device 5 transmit detection radio waves. The exit side sub-control device 13 adjusts the timing at which the first exit side reading device 6 and the second exit side reading device 7 transmit detection radio waves. Therefore, even when the number of gates 2 is changed, the first entrance side reading device 4, the second entrance side reading device 5, the first exit side reading device 6, and the second exit side reading device 7 are flexibly controlled. can do.

The first entrance side reading device 4 and the second entrance side reading device 5 transmit detection radio waves in order. The first exit side reading device 6 and the second exit side reading device 7 transmit detection radio waves in order. The tag 17 transmits a response radio wave when receiving these detection radio waves in this order. Therefore, it is possible to more reliably determine the gate 2 that the user carrying the tag 17 has passed through and the moving direction of the user.

Even if the first entrance reading device 4, the second entrance reading device 5, the first exit reading device 6, and the second exit reading device 7 are caused to transmit detection radio waves including information corresponding to the gate 2. Good.

At this time, the information included in the detection radio waves transmitted from the first entrance side reading device 4 and the second entrance side reading device 5 may be temporarily stored in the tag 17. After that, the tag 17 receives the detection radio wave transmitted from the first exit side reading device 6 and the second exit side reading device 7 before the elapse of a certain time, and the information included in the detection radio wave is temporarily If it is the same as the stored information, the tag 17 may not be required to transmit a response radio wave. In this case, the battery life of the tag 17 can be extended. Furthermore, it is possible to detect that the tag 17 moves from the entrance side of the gate 2 to the exit side based on the reception result of the response radio wave at this time.

For example, the information included in the detected radio waves transmitted from the first exit side reading device 6 and the second exit side reading device 7 may be temporarily stored in the tag 17. After that, the tag 17 receives the detection radio wave transmitted from the first entrance-side reading device 4 and the second entrance-side reading device 5 before a certain period of time elapses, and the information included in the detection electric wave is temporarily received. If it is the same as the stored information, the tag 17 may not be required to transmit a response radio wave. In this case, the battery life of the tag 17 can be extended. Further, based on the reception result of the response radio wave at this time, it can be detected that the tag 17 moves from the exit side of the gate 2 to the entrance side.

Further, the first entrance-side transmission strength adjusting device 11 adjusts the transmission strength of the detected radio wave in the first entrance-side reading device 4. The second entrance side transmission intensity adjusting device 12 adjusts the transmission intensity of the detected radio wave in the second entrance side reading device 5. The first exit-side transmission intensity adjusting device 14 adjusts the transmission intensity of the detected radio wave in the first exit-side reading device 6. The second exit side transmission intensity adjusting device 15 adjusts the transmission intensity of the detected radio wave in the second exit side reading device 7. Therefore, the detection radio wave can be easily adjusted at the site where the gate 2 is provided. As a result, the detection range of the tag 17 can be easily adjusted.

The first entrance-side transmission intensity adjusting device 11 is provided in the entrance-side sub-control device 10. The second entrance-side transmission intensity adjusting device 12 is provided in the entrance-side sub-control device 10. The first exit side transmission intensity adjusting device 14 is provided in the exit side sub-control device 13. The second exit side transmission intensity adjusting device 15 is provided in the exit side sub-control device 13. Therefore, erroneous adjustment of the detected radio wave can be suppressed at the site where the gate 2 is provided.

Note that the reception intensity of the response radio wave may also be taken into consideration to determine the gate 2 through which the user carrying the tag 17 has passed and the moving direction of the user. In this case, it is possible to prevent erroneous determination between the gate 2 which the user has passed and the moving direction of the user.

Further, the response radio wave transmitted from the tag 17 which receives the detection radio waves from the first entrance side reading device 4 and the second entrance side reading device 5 may be received by the entrance side sub-control device 10. The response radio wave transmitted from the tag 17 that has received the detection radio waves from the first exit side reading device 6 and the second exit side reading device 7 may be received by the exit side sub-control device 13. In this case as well, even when a plurality of gates 2 are adjacent to each other, it is possible to determine the gate 2 through which the user carrying the tag 17 passes and the moving direction of the user.

Further, the traffic detection system according to the first embodiment may be applied to the gate 2 provided at the ticket gate of the station. In this case as well, the gate 2 through which the user has passed and the moving direction of the user can be determined.

Further, the traffic detection system of the first embodiment may be applied to the gate 2 through which the vehicle passes. Also in this case, it is possible to determine the gate 2 through which the vehicle has passed and the moving direction of the user.

Next, an example of the entrance side sub-control device 10 will be described with reference to FIG.
FIG. 7 is a hardware configuration diagram of the entrance side sub-control device of the traffic detection system according to the first embodiment of the present invention.

Each function of the entrance side sub-control device 10 can be realized by a processing circuit. For example, the processing circuit includes at least one processor 21a and at least one memory 21b. For example, the processing circuit comprises at least one dedicated hardware 22.

When the processing circuit includes at least one processor 21a and at least one memory 21b, each function of the entrance side sub-control device 10 is realized by software, firmware, or a combination of software and firmware. At least one of software and firmware is described as a program. At least one of software and firmware is stored in at least one memory 21b. At least one processor 21a realizes each function of the entrance side sub-control device 10 by reading and executing a program stored in at least one memory 21b. At least one processor 21a is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a DSP. For example, the at least one memory 21b is a nonvolatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, etc., a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, etc.

If the processing circuit comprises at least one dedicated hardware 22, the processing circuit is implemented, for example, in a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. It For example, each function of the entrance side sub-control device 10 is realized by a processing circuit. For example, each function of the entrance side sub-control device 10 is collectively realized by a processing circuit.

Part of each function of the entrance side sub-control device 10 may be realized by dedicated hardware 22, and the other part may be realized by software or firmware. For example, a program in which at least one processor 21a is stored in at least one memory 21b for functions other than the function for grasping the identification information is realized by a processing circuit as dedicated hardware 22 for the function for grasping the identification information. May be realized by reading and executing.

In this way, the processing circuit realizes each function of the entrance side sub-control device 10 by the hardware 22, software, firmware, or a combination thereof.

Although not shown, each function of the outlet side sub-control device 13 is also realized by a processing circuit equivalent to the processing circuit that realizes each function of the entrance side sub-control device 10. Each function of the main control device 16 is also realized by a processing circuit equivalent to the processing circuit that realizes each function of the entrance side secondary control device 10.

INDUSTRIAL APPLICABILITY As described above, the traffic detection system according to the present invention can be used for a system that determines a gate that a user has passed and a moving direction of the user.

DESCRIPTION OF SYMBOLS 1 management area, 2 gates, 3 switchgear, 4 1st entrance side reader, 5 2nd entrance side reader, 6 1st exit side reader, 7 2nd exit side reader, 8 traffic detector, 9 collation Device, 10 Entrance side sub-control device, 11 1st entrance side transmission intensity adjusting device, 12 2nd entrance side transmission intensity adjusting device, 13 Exit side sub-control device, 14 1st exit side transmitting intensity adjusting device, 15 2nd exit Side transmission intensity adjusting device, 16 master control device, 17 tag, 18 master-slave switch, 19 timing switch, 20 synchronization line, 21a processor, 21b memory, 22 hardware

Claims (6)

A first entrance side reading device which is provided on one side of the entrance side of the gate provided at the boundary between the outside and the inside of the management area where the entrance and exit of the user is managed and which transmits the detection radio wave to the entrance side of the gate When,
A second entrance side reader provided on the other side of the entrance side of the gate for transmitting detection radio waves to the entrance side of the gate;
A first exit side reader provided on one exit side of the gate and transmitting a detection radio wave to the exit side of the gate;
A second exit side reader provided on the other side of the exit side of the gate for transmitting detection radio waves to the exit side of the gate;
When the response radio wave transmitted from the tag that receives the detection radio waves from the first entrance side reader and the second entrance side reader is received, it is detected that the tag exists on the entrance side of the gate. Detecting the presence of the tag on the exit side of the gate when receiving the response radio wave transmitted from the tag that received the detection radio waves from the first exit side reader and the second exit side reader A traffic detection device that detects the moving direction of the tag based on the reception result of the response radio wave from the tag,
Equipped with
The traffic detection device,
An entrance-side sub-control device that receives a response radio wave transmitted from a tag that has received detection radio waves from the first entrance-side reader and the second entrance-side reader,
An exit side sub-control device that receives a response radio wave transmitted from a tag that has received detection radio waves from the first exit side reader and the second exit side reader,
A main control device that detects the moving direction of the tag based on the reception result of the response radio wave by the entrance side sub control device and the exit side sub control device,
Equipped with
The entrance side sub-control device adjusts the timing at which the first entrance side reading device and the second entrance side reading device transmit detection radio waves,
The said exit side sub-control apparatus is a traffic detection system which adjusts the timing which the said 1st exit side reader and the said 2nd exit side reader transmit a detection electric wave . The first entrance side reading device and the second entrance side reading device transmit detection radio waves in order,
The first exit side reading device and the second exit side reading device transmit detection radio waves in order,
The entrance side sub-control device receives the response electric wave transmitted when the tag receives the detection electric wave transmitted in order from the first entrance side reading device and the second entrance side reading device. Detecting that the tag is present on the entrance side of the gate,
The exit side sub-control device receives the response radio wave transmitted when the tag receives the detection radio waves sequentially transmitted from the first exit side reading device and the second exit side reading device, The traffic detection system according to claim 1 , wherein the tag is present on the exit side of the gate. Wherein the first inlet-side reading device and said second inlet-side reading device and the first outlet reader and the second outlet-side reading device, according to claim transmits a detection radio wave including the information corresponding to the gate 1 or traffic detection system according to claim 2. The traffic detection device may be configured such that the tag temporarily stores information included in detection radio waves transmitted from the first entrance side reading device and the second entrance side reading device before a predetermined time elapses. When the detection radio wave transmitted from the first exit side reading device and the second exit side reading device is received and the information included in the detection radio wave is the same as the temporarily stored information, the response radio wave is changed. When the tag is not transmitted, it is detected that the tag moves from the entrance side to the exit side of the gate, and the tag is included in the detection radio waves transmitted from the first exit side reader and the second exit side reader. The detected radio wave transmitted from the first entrance side reading device and the second entrance side reading device is received before a predetermined time has elapsed after the stored information is stored, and the information included in the detected radio wave is temporarily stored. The traffic detection system according to claim 3 , wherein when the response radio wave is not transmitted because it is the same as the information stored in, the tag detects that the tag moves from the exit side to the entrance side of the gate. A first entrance-side transmission intensity adjusting device that adjusts the transmission intensity of the detected radio wave in the first entrance-side reading device;
A second entrance side transmission intensity adjusting device for adjusting the transmission intensity of the detected radio wave in the second entrance side reading device;
A first exit-side transmission intensity adjusting device that adjusts the transmission intensity of the detected radio wave in the first exit-side reading device;
A second exit side transmission intensity adjusting device for adjusting the transmission intensity of the detected radio wave in the second exit side reading device;
Traffic detection system according to any one of claims 1 to 4 comprising a. The first entrance-side transmission strength adjusting device is provided in the entrance-side sub-control device,
The second entrance-side transmission strength adjusting device is provided in the entrance-side sub-control device,
The first exit side transmission intensity adjusting device is provided in the exit side sub-control device,
The traffic detection system according to claim 5 , wherein the second exit-side transmission intensity adjusting device is provided in the exit-side sub-control device.

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