JP2012118828A - Vehicle passage management apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle passage management apparatus in which vehicle congestion during congestion hours can be canceled by allowing a vehicle to pass through a gate without stopping.SOLUTION: A vehicle passage management apparatus includes a reader 5 which reads ID information recorded on an IC card mounted in a vehicle passing on a passageway 8, a sensor L1 which first detects whether a vehicle enters the passageway 8, a gate 1 which is disposed at a downstream side of a vehicle passing direction of the sensor L1 and opens/closes the passageway 8, a sensor L2 which is disposed at a downstream side in a vehicle passing direction of the gate 1 and detects a vehicle which passes the gate 1, a gate drive device 2 which drives the gate 1, a control device 6 which controls driving of the gate drive device 2 on the basis of detected states of the sensors L1 and L2 and the ID information read by the reader 5, an authentication result lamp 4 which displays whether a result of reading the ID information through the reader 5 is authenticated ID information, and a management center 7 which manages management information transmitted from the control device 6.

Description

  The present invention relates to a vehicle traffic management device, and more particularly to a vehicle traffic management device that manages a vehicle passing through a passage provided with a gate.

In an unmanned parking lot, etc., it is equipped with a ticketing device and a gate. For vehicles entering the parking lot, a parking ticket is issued and the gate is opened to allow entry. A gate-type entry / exit management device, which is an open condition, has been put into practical use.
FIG. 7 is a diagram illustrating an example of a configuration of a conventional gate-type entry / exit management device. This gate-type entry / exit management device 100 first determines whether or not the driver of the vehicle 20 entering the parking lot issues a parking ticket by pressing a button, and whether or not the vehicle 20 has entered the passage 25. A sensor L1 that detects the vehicle, a gate 21 that is disposed downstream of the sensor L1 in the vehicle passage direction and opens and closes the passage 25, and a sensor that is disposed downstream of the gate 21 in the vehicle passage direction and detects the vehicle that has passed through the gate 21 L2 and gate drive means 22 for driving the gate 21 are provided. In this case, the vehicle 20 temporarily stops in front of the parking ticket issuing machine 24 in order to receive the parking ticket. The state is detected by the sensor L1, and a parking ticket is issued from the parking ticket issuing machine 24. By extracting the parking ticket, the gate 21 is opened, and the vehicle 20 passes through the gate 21 and passes over the sensor L2. When the sensor L2 detects that the vehicle 20 has passed, the gate 21 is closed by a control device (not shown).

In addition to this, there is a vehicle traffic management device in which a reader that reads ID information in a non-contact manner is installed on the side of the passage, and a vehicle equipped with an IC card that records the ID information automatically opens and closes the gate when approaching the reader. . However, even in this case, since the distance between the leader and the gate is short, the vehicle has to stop or decelerate to pass. As described above, the conventional gate-type entry / exit management device or the vehicle traffic management device has many vehicles for passing through the gate 21 because the vehicle is stopped or decelerated one by one in front of the parking ticket issuing machine 24 or the leader. There is a problem that it takes time and the vehicle is congested at the time of congestion.
As a prior art, in Patent Document 1, a wireless tag is mounted on a vehicle, and a sensor a that detects the entrance of the vehicle and a sensor b that detects the passage of the gate are provided in front of the gate, and the vehicle stops at the sensor a. Alternatively, a gate opening and closing device is disclosed that reads an identification code stored in a wireless tag with an antenna and detects that it has passed, and opens the gate if permitted.

JP 2010-117799 A

However, since the prior art disclosed in Patent Document 1 is based on the premise that the vehicle stops before the gate, there is a problem that the vehicle is unavoidably congested during congestion.
The present invention has been made in view of such a problem, and determines the distance between the vehicle detection means and the gate when the vehicle passes through the passage at the maximum passing speed of the vehicle at which the reader can check the ID information. To provide a vehicle traffic management device that can be set based on the time required to complete the opening of a gate and thereby allow the vehicle to pass through the gate without stopping, thereby eliminating the congestion of the vehicle at the time of congestion. With the goal.

In order to solve this problem, the present invention provides a vehicle traffic management device that is disposed along a path of a vehicle equipped with a non-contact information recording medium in which ID information is recorded and manages the traffic of the vehicle. A reader that reads ID information recorded on a non-contact information recording medium mounted on the vehicle passing through the passage, and a first vehicle detection that first detects whether the vehicle has entered the passage. Means, a gate arranged downstream of the first vehicle detection means in the vehicle passage direction to open and close the passage, and a gate arranged downstream of the gate in the vehicle passage direction to detect a vehicle passing through the gate. Two vehicle detection means, gate drive means for driving the gate, detection states of the first vehicle detection means and the second vehicle detection means, and the ID information read by the reader. Control means for driving and controlling the vehicle driving means, the separation distance Lg between the first vehicle detection means and the gate is set to Vm, and the maximum traffic speed of the vehicle at which the reader can check the ID information is set to Vm. When the vehicle passes through the passage at a passing speed Vm, the time required to complete the opening of the gate by the gate driving means is set to t, and Lg = Vm × t or more is set. .
The shorter the distance between the position where the ID information of the vehicle is confirmed by the reader and the gate is, the smaller the device can be configured. However, on the other hand, if the vehicle does not stop at the position of the leader, it may contact the gate before the gate is opened. As a result, since the vehicle must be stopped once, the conventional problem cannot be solved. Therefore, in the present invention, in the conventional configuration, the separation distance Lg between the first vehicle detection means and the gate is set to Vm, the maximum passing speed of the vehicle at which the reader can confirm the ID information is Vm, and the vehicle passes through the passage at the passing speed Vm. Lg = Vm × t or more was set, where t is the time required for the gate driving means to complete opening the gate when passing. Thereby, even if the vehicle passes at the maximum passing speed at which the ID information can be confirmed, the vehicle can pass without contacting the gate.

According to a second aspect of the present invention, when the control unit detects the vehicle by the first vehicle detection unit and does not detect the vehicle by the second vehicle detection unit, the non-contact information recording is performed from the reader. The ID information is read by emitting a radio wave for activating the medium, and when the read result is confirmed to be authenticated ID information, the gate driving means opens the gate.
The state where the vehicle is detected by the first vehicle detection means and the vehicle is not detected by the second vehicle detection means is the optimum position for reading the ID information recorded on the non-contact information recording medium mounted on the vehicle by the reader. It means that you are in Therefore, for example, in the case of a communication method using the UHF band, when a non-contact information recording medium is activated by radiating radio waves in the UHF band from a reader and it is confirmed that the result of reading the ID information is authenticated ID information. Open the gate. Thereby, a radio wave can be radiated from the reader at an optimal timing.

According to a third aspect of the present invention, the control means includes a state in which both the first vehicle detection means and the second vehicle detection means do not detect the vehicle after the gate is opened, and the second vehicle detection means. Only when the vehicle detects the vehicle and the state where both the first vehicle detection means and the second vehicle detection means do not detect the vehicle, the vehicle has completed passing through the gate. The gate is closed by the gate driving means.
After opening the gate, the vehicle sequentially passes through the first vehicle detection means and the second vehicle detection means. Therefore, it is necessary to check whether or not the passing procedure is a result of correctly performing even in the same detection state. In the present invention, the passage procedure is correctly performed, and the timing for closing the gate is the time when both the first vehicle detection means and the second vehicle detection means do not detect the vehicle. Thereby, the timing which closes a gate can be set correctly.

According to a fourth aspect of the present invention, the control means detects the state in which both the first vehicle detection means and the second vehicle detection means do not detect the vehicle after the gate is opened. When the vehicle detection means detects a vehicle, a preceding vehicle exists between the first vehicle detection means and the second vehicle detection means, and a succeeding vehicle reaches the first vehicle detection means. It is characterized by the fact that it has been done.
In the present invention, since the distance between the first vehicle detection means and the second vehicle detection means is relatively large, the preceding vehicle exists between the first vehicle detection means and the second vehicle detection means. In some cases, it is detected as if there is no vehicle. At this time, when a vehicle is detected by the first vehicle detection means, a second vehicle has entered. As a result, even if no vehicle is detected, it can be accurately detected as the second vehicle.

According to a fifth aspect of the present invention, there is provided authentication result display means for displaying whether or not a result of reading the ID information by the reader is authenticated ID information.
The driver of the vehicle wants to know in advance whether or not the ID information is correctly read when the vehicle passes through the reader, thereby opening the gate. Therefore, the present invention includes an authentication result display means for displaying whether or not the ID information is authenticated. This allows visual confirmation in advance before the gate opens.

A sixth aspect of the present invention is characterized in that the first vehicle detection means and the second vehicle detection means are constituted by a loop coil embedded in the ground surface.
A vehicle is generally made of metal. When a metal is subjected to a magnetic field, it is converted into Joule heat in the metal and functions to absorb the magnetic field. In the absence of metal, a magnetic field loop is formed. Thus, the presence or absence of the vehicle can be detected by generating a magnetic field by flowing a current through the loop coil and detecting a change in the magnetic field.

According to the present invention, in the conventional configuration, the separation distance Lg between the first vehicle detection means and the gate is set to Vm as the maximum passing speed of the vehicle at which the reader can confirm the ID information, and the vehicle passes at the passing speed Vm. When the time required to complete the opening of the gate by the gate driving means when passing through is set to t or more, since Lg = Vm × t or more is set, the vehicle passes at the maximum passing speed at which ID information can be confirmed. Can pass through without touching the gate.
Further, for example, in the case of a communication method using the UHF band, when a non-contact information recording medium is activated by radiating radio waves in the UHF band from a reader and it is confirmed that the result of reading the ID information is authenticated ID information. Since the gate is opened, radio waves can be radiated from the reader at the optimum timing.
In addition, since the passage procedure is correctly performed and the timing for closing the gate is the time when both the first vehicle detection means and the second vehicle detection means do not detect the vehicle, the timing for closing the gate is accurate. Can be set to
In addition, when the vehicle is detected by the first vehicle detection means after the gate is opened, the second vehicle has entered, so even if no vehicle is detected, It can be accurately detected as the second unit.
Moreover, since the authentication result display means which displays whether it is authenticated ID information is provided, it can be visually confirmed in advance before the gate opens.
Moreover, the presence or absence of a vehicle can be detected by generating a magnetic field by flowing a current through the loop coil and detecting a change in the magnetic field.

It is a figure which shows the structure of the vehicle traffic management apparatus which concerns on embodiment of this invention. The vertical axis represents the distance between the reader and the gate, and the horizontal axis represents time. It is a figure explaining a mode that each part operate | moves when one vehicle passes a vehicle traffic management apparatus. It is a figure explaining a mode that each part operates when two vehicles pass a vehicle traffic management device. It is the figure which made the table | surface the state of each part when a vehicle passes a vehicle traffic management apparatus. It is a flowchart explaining operation | movement of the vehicle traffic management apparatus of this invention. It is a figure which shows an example of a structure of the conventional gate type approach / exit management apparatus.

  Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .

  FIG. 1 is a diagram showing a configuration of a vehicle traffic management device according to an embodiment of the present invention. The vehicle traffic management device 50 is arranged along a passage 8 of a vehicle (not shown) on which an IC card (tag) (non-contact information recording medium) on which ID information is recorded is installed, and manages the traffic of the vehicle. A traffic management device 50 that reads ID information recorded on an IC card mounted on a vehicle passing through the passage 8 and a loop coil sensor L1 that first detects whether the vehicle has entered the passage 8. (Hereinafter simply referred to as sensor L1) (first vehicle detection means), gate 1 disposed on the downstream side of sensor L1 in the vehicle passage direction and opening and closing passage 8, and disposed on the downstream side of gate 1 in the vehicle passage direction A loop coil sensor L2 (hereinafter simply referred to as sensor L2) (second vehicle detection means) for detecting a vehicle that has passed through the gate 1, and a gate drive device (gate drive means) 2 for driving the gate 1, The control device (control means) 6 that drives and controls the gate driving device 2 based on the detection states of the sensor L1 and the sensor L2 and the ID information read by the reader 5, and the result of reading the ID information by the reader 5 are authenticated. An authentication result lamp (authentication result display means) 4 for displaying whether or not the ID information is received, and a management center 7 for managing management information transmitted from the control device 6.

  In this vehicle traffic management device 50, when the distance Lg between the sensor L1 and the gate 1 is Vm, the maximum traffic speed of the vehicle at which the reader 5 can confirm the ID information is Vm, and the vehicle passes through the passage 8 at the passing speed Vm When the time required for completing the opening of the gate 1 by the gate driving device 2 is t, Lg = Vm × t or more is set. For example, if the maximum traffic speed of the vehicle is Vm = 20 Km / h and the time required for completing the opening of the gate 1 by the gate driving device 2 is t = 2 sec, then Lg = Vm × t = (20 Km / h) × 2 sec≈11 m It becomes. Therefore, the separation distance between the sensor L1 and the gate 1 may be set to 11 m or more. It should be noted that the maximum traffic speed of the vehicle is further increased when the IC card is mounted in an ideal position and direction (that is, at the same height as the reader and in a direction orthogonal to the radio wave radiated from the reader). Although it can be set quickly, in reality, not all vehicles have IC cards mounted in ideal positions and directions, so 20 Km / h to 10 Km / h are realistic values. If the distance is 10 Km / h, the separation distance Lg can be reduced to about 1/2 of about 5 m.

In addition, the driver of the vehicle should know in advance whether or not the ID information is correctly read when passing through the reader 5 and thereby the gate 1 is opened. Therefore, in the present embodiment, an authentication result lamp 4 that displays whether or not the ID information is authenticated is provided. Thereby, before a gate 1 opens, a result can be visually confirmed beforehand.
The vehicle is generally made of metal. When a metal is subjected to a magnetic field, it is converted into Joule heat in the metal and functions to absorb the magnetic field. In the absence of metal, a magnetic field loop is formed. Thus, the presence or absence of the vehicle can be detected by generating a magnetic field by flowing a current through the loop coil and detecting a change in the magnetic field.

  FIG. 2 shows the distance between the reader and the gate on the vertical axis and the time on the horizontal axis. In this figure, for comparison with the conventional configuration, a case where the distance Lg2 from the leader to the gate is short and a case where the distance Lg1 from the leader to the gate is long as in the present invention are shown. First, in the conventional case, the A1st vehicle enters the position of the reader as shown in the figure, and when approaching the reader, the speed is decreased and temporarily stops at the position of the reader for tw. When the ID information is authenticated, the gate is opened to accelerate and pass. As with the A1th vehicle, the A2nd vehicle decreases its speed when it approaches the reader after time t1, and once stops at the position of the reader for tw. When the ID information is authenticated, the gate is opened to accelerate and pass.

On the other hand, in the present invention, the first B1 enters the position of the reader as shown in the figure and passes without stopping even when approaching the reader, and when the ID information is authenticated, the gate is opened and accelerated. Then pass. The B2nd vehicle enters the position of the reader as shown in the figure after time t2 in the same manner as the B1st vehicle, passes without stopping even if it approaches the reader, and the ID information is authenticated. Open, accelerate and pass.
As described above, according to the present invention, since the vehicle is not stopped at the position of the gate, the waiting time for the second vehicle is t1> t2, and the waiting time can be made shorter than before and the vehicle can pass through the gate.

  FIG. 3 is a diagram for explaining how each unit operates when one vehicle passes through the vehicle traffic management device. Each will be described as states 1-7. The same components will be described with the same reference numerals as in FIG. FIG. 5A is a table showing the state of each part at this time. First, in FIG. 3A, as the state 1, the vehicle 10 enters in the direction of the arrow. In this state, the sensors L1 and L2 do not detect the vehicle, and the reader 5 does not operate. Therefore, the gate 1 remains closed, and the authentication result lamp 4 is turned off. Next, in FIG. 3B, as the state 2, the vehicle 10 is on the sensor L <b> 1, and thus the vehicle 10 is detected by the sensor L <b> 1, but no radio wave is emitted from the reader 5. Next, in state 3 in FIG. 3C, the reader 5 operates to emit radio waves, and communication with the IC card 11 of the vehicle 10 is started. In FIG. 3D, since the vehicle 10 is on the sensor L1 as the state 4 in this state, the sensor L1 detects the vehicle in this state, L2 does not detect the vehicle, the reader 5 operates, and the IC card 11 Therefore, the authentication result lamp 4 is turned on and the gate 1 is opened. That is, the state in which the vehicle L is detected by the sensor L1 and the vehicle is not detected by the sensor L2 indicates that the reader 5 is at the optimum position for reading the ID information recorded on the IC tag 11 mounted on the vehicle. Yes. Therefore, for example, in the case of a communication method using the UHF band, when the IC tag 11 is activated by radiating radio waves in the UHF band from the reader 5 and it is confirmed that the result of reading the ID information is authenticated ID information, Gate 1 is opened. Thereby, a radio wave can be radiated from the reader 5 at an optimal timing.

Next, in FIG. 3 (e), since the vehicle 10 is between the sensors L1 and L2 as the state 5 in this state, in this state, the sensors L1 and L2 do not detect the vehicle, the reader 5 becomes inoperative, and authentication is performed. The result lamp 4 is turned off and the gate 1 remains open. Next, in FIG. 3 (f), since the vehicle 10 is on the sensor L2 as the state 6, in this state, only the sensor L2 detects the vehicle, the reader 5 remains inactive, and the authentication result lamp 4 remains off and the gate 1 remains open. Next, in FIG. 3G, as the state 7, the vehicle 10 passes the sensor L2. In this state, both the sensors L1 and L2 do not detect the vehicle, the reader 5 remains inactive, and authentication is performed. The result lamp 4 remains off and the gate 1 is closed. That is, after the gate 1 is opened, the vehicle 10 sequentially passes through the sensors L1 and L2. Therefore, it is necessary to check whether or not the passing procedure is a result of correctly performing even in the same detection state. In the present embodiment, it is assumed that the passage procedure is correctly performed and the timing at which the gate 1 is closed is a state where both the sensors L1 and L2 do not detect the vehicle 10. Thereby, the timing which closes the gate 1 can be set correctly.
The above operation is the progress of the operation when one vehicle passes the vehicle traffic management device 50 normally. In the state 4 in FIG. 3D, when the reader 5 operates and reads the ID information of the IC card 11 and is not authenticated, NG of the authentication result lamp 4 is turned on and the gate is not opened.

  FIG. 4 is a diagram for explaining how each unit operates when two vehicles pass through the vehicle traffic management device 50. Each will be described as states 8-10. The same components will be described with the same reference numerals as in FIG. FIG. 5B is a table showing the state of each part at this time. First, in FIG. 4A, as the state 8, when the A vehicle 10 passes in the direction of the arrow and is in the middle of the sensors L1 and L2, the B vehicle 12 is on the sensor L1. In this state, the sensor L2 does not detect the vehicle, the sensor L1 detects the vehicle, and the reader 5 is still inactive, the gate 1 remains open, and the authentication result lamp 4 is still off. That is, in the present embodiment, the distance between the sensors L1 and L2 is relatively large, so that the preceding vehicle 10 exists between the sensors L1 and L2, and it is detected that no vehicle is present. There is a case. At this time, when the vehicle 12 is detected by the sensor L1, the second vehicle has entered. As a result, even if no vehicle is detected, it can be accurately detected as the second vehicle.

  Next, in state 4 in FIG. 4B, as vehicle A is on sensor L2 and vehicle B is on sensor L1, in this state, both sensors L1 and L2 detect the vehicle. 5 is inoperative, the authentication result lamp 4 is turned off, and the gate 1 is left open. In FIG. 4C, as the state 10 in FIG. 4C, the A vehicle 10 passes the sensor L2, and the B vehicle 12 is on the sensor L1, so in this state, the sensor L1 detects the vehicle, and L2 is the vehicle. Is not detected, the reader 5 is activated, is in communication with the IC card 13, and the gate 1 is closed.

FIG. 6 is a flowchart for explaining the operation of the vehicle traffic management apparatus of the present invention. In this flowchart, description is made in correspondence with states 1 to 10 in FIG. 5 and description of each state has been described with reference to FIG. 3 and FIG.
First, state 1 is performed as step 1, state 2 is performed as step 2, state 3 is performed as step 3, state 4 is performed as step 4, and state 5 is performed as step 5. In step 5, the vehicle is between L1 and L2, and the IC card 11 and the reader 5 are out of the communication range. Here, in order to check whether or not the next vehicle has continuously entered the gate, it is checked whether or not L1 is detected (S6). Here, when there is one vehicle, since it is N in step S6, as described in FIG. 3, the process proceeds to state 6 as step 7 and to state 7 as step 8, and is repeated from state 1 of step 1.
When L1 detects the next vehicle (vehicle B) in step 6 (Y in S6), the process proceeds to step 8 in FIG. Here, it is checked whether or not the preceding vehicle (vehicle A) has reached L2 (S10). If not detected (N in S10), the state 8 is continued, and if detected (Y in S10), step 11 is performed. Proceed to state 9 in FIG. Here, it is checked whether or not the preceding vehicle (vehicle A) has passed L2 (S12). If it does not pass (Y in S12), state 9 is continued, and if it passes (N in S12), step 13 is performed. Then, the process proceeds to state 10 in FIG. 4 and continues from state 3 in step 3.

1 gate, 2 gate drive device, 3 island, 4 authentication result lamp, 5 reader, 6 control device, 7 management center, 8 passage, 50 vehicle traffic management device

Claims (6)

A vehicle traffic management device that is disposed along a path of a vehicle equipped with a non-contact information recording medium that records ID information and manages the traffic of the vehicle,
A reader for reading ID information recorded on a non-contact information recording medium mounted on the vehicle passing through the passage;
First vehicle detection means for first detecting whether or not the vehicle has entered the passage;
A gate disposed on the downstream side in the vehicle traffic direction of the first vehicle detection means to open and close the passage;
A second vehicle detecting means arranged on the downstream side of the gate in the vehicle passage direction for detecting a vehicle passing through the gate;
Gate driving means for driving the gate;
Control means for driving and controlling the gate drive means based on the detection state of the first vehicle detection means and the second vehicle detection means and the ID information read by the reader;
When the distance Lg between the first vehicle detection means and the gate is Vm, the maximum traffic speed of the vehicle at which the reader can confirm the ID information is Vm, and the vehicle passes through the passage at a passing speed Vm. Further, the vehicle traffic management device is characterized in that Lg = Vm × t or more is set, where t is the time required for completing the opening of the gate by the gate driving means.   The control means activates the non-contact information recording medium from the reader when the vehicle is detected by the first vehicle detection means and the vehicle is not detected by the second vehicle detection means. 2. The vehicle according to claim 1, wherein when the ID information is read by radiating a radio wave for confirmation and the read result is confirmed to be authenticated ID information, the gate is opened by the gate driving means. Traffic management device.   The control means includes a state where both the first vehicle detection means and the second vehicle detection means do not detect the vehicle after the gate is opened, and only the second vehicle detection means controls the vehicle. When the detection state and the state where both the first vehicle detection unit and the second vehicle detection unit do not detect the vehicle are sequentially detected, it is assumed that the vehicle has passed through the gate. The vehicle traffic management device according to claim 1, wherein the gate is closed by the gate driving means.   After the gate is opened, the control means detects that the first vehicle detection means and the second vehicle detection means do not detect the vehicle, and then the first vehicle detection means Is detected, the preceding vehicle is present between the first vehicle detection means and the second vehicle detection means, and the subsequent vehicle is considered to have reached the first vehicle detection means. The vehicle traffic management apparatus according to claim 1 or 2, wherein   The vehicle according to any one of claims 1 to 4, further comprising authentication result display means for displaying whether or not a result of reading the ID information by the reader is authenticated ID information. Traffic management device.   The vehicle traffic management according to any one of claims 1 to 5, wherein the first vehicle detection means and the second vehicle detection means are constituted by a loop coil embedded in the ground surface. apparatus.

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