JP2015079284A - Traffic lane operation display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that when a failure occurs in an ETC system, display on a lane display panel 104 for showing the operational state of an ETC lane is closed and a driver of a car cannot be informed of the failure and enters into the ETC lane.SOLUTION: A traffic lane operation display device includes a traffic lane server 101, a roadside interface aggregation part 103 and a traffic lane display panel 104. The traffic lane server 101 outputs a periodic pulse signal as an operational command through an optical line to the roadside interface aggregation part 103 placed on a traffic lane. The roadside interface aggregation part 103 converts the periodic pulse optical signal as an operational command received from the traffic lane server 101 to a contact signal and outputs the contact signal. The traffic lane display panel 104 receives a periodic pulse of the contact signal as an operational command from the roadside interface aggregation part 103; switches display of the operational state according to content of the command; and, in the case of not receiving a periodic pulse as an operational command for a predetermined time, automatically displays that the traffic lane is closed.

Description

  The present invention relates to a lane operation state display device that displays a lane operation state of a road.

  Lane display boards are installed in toll road toll booths, for example, in the non-stop automatic toll collection system (Electronic Toll Collection System; hereinafter referred to as ETC (registered trademark)), and display the operating status of the lane (lane) to the driver Used for a lane operation status display device.

  The operation state of the lane displayed on the lane display board is determined by the lane server installed in the toll gate based on the operation state of each device constituting the ETC and the manual display switching input signal. The lane server switches the display of the lane display board by transmitting a control signal to the lane display board based on the determination of the operating state of the lane (see, for example, Patent Document 1).

  The lane operation status is displayed as “closed” indicating that the lane is closed, “ETC” indicating that only the ETC vehicle can pass, “ETC / ETC” that can be used by both ETC vehicles and vehicles not equipped with ETC. "General".

  The lane server and the lane display board are connected by a contact signal, and the display state is changed and controlled only by one pulse of 50 ms. The contact signal is made up of a plurality of signals corresponding one-to-one with the operation state. For example, when the “closed” display is desired, the “closed control” contact signal is output, and when the “ETC” display is desired, the “ETC controlled” contact signal is output.

JP 2009-64052 A

  The conventional lane operation status display device is used when the connection between the lane server and the lane display board is broken, when the lane server is turned off, or when the function of the lane server is stopped for some reason. Will remain in the last controlled operational state. In other words, it cannot be changed to a “closed” display indicating that the driver cannot continue the operation even though the driver cannot normally pass through the ETC lane due to an abnormality in the ETC system. There was a problem.

  As a solution, there is a method of confirming the operation by changing to a more intelligent communication interface, such as a LAN between the lane display board and the lane server. However, when a new LAN is installed, a hardware change occurs, and there is a problem that enormous cost and time are required for remodeling existing equipment.

  The present invention has been made to solve such a problem, and does not change the hardware in the connection by the contact signal between the lane server and the lane display board, and the abnormality in the lane server and the lane display board only by the contact signal. The purpose is to perform a health check to confirm the occurrence or not, and to automatically perform closing control when the ETC system is abnormal.

  A lane operation state device according to the present invention is installed in a toll booth and generates an operation state command request for instructing switching or maintaining a lane operation state, and an operation state from the lane monitoring control device. A lane server that receives a command request and outputs a periodic pulse signal of an operation status command via an optical line, and an optical signal of a periodic pulse of an operation status command received from the lane server via an optical line is converted into a contact signal and output Receiving the periodic pulse of the operation state command of the contact signal from the roadside interface aggregation unit and the roadside interface aggregation unit, switching the display of the operation state according to the content of the command, and the periodic pulse of the operation state command within a certain time If the vehicle cannot be received, a lane display board that automatically displays the operation state with the lane closed is provided.

  In addition, an operating device that is installed in the lane of the toll gate and generates an operation state command request for instructing switching or maintaining the operation state of the lane by manually operating a button by the maintenance staff, and the above operating device A roadside interface aggregating unit that receives the operational status command request of the first and converts the contact signal corresponding to the operational status command request into an optical signal, and transmits the optical signal via the optical line, and the roadside via the optical line. An operational status command request is received from the interface aggregation unit, a periodic pulse of the operational status command corresponding to the operational status command request is output as an optical signal to the roadside interface aggregation unit, and the operational status command cycle is output by the roadside interface aggregation unit. A lane server that converts an optical signal of a pulse into a contact signal and outputs it, and a periodic pulse of an operation state command of the contact signal from the roadside interface aggregation unit. Switch the operation status display according to the contents of the command, and if the periodic pulse of the operation status command is not received within a certain time, the lane display automatically displays the operation status with the lane closed And a board.

  According to the present invention, by determining whether or not there is a fixed period pulse from the lane server, the lane display board automatically switches the display to “closed”, so that even when the lane server becomes unable to control the lane display board, Since the lane display board can notify the driver of entry prohibition due to “closed” of the lane, safe operation of the ETC can be maintained.

It is a figure which shows the structure of the lane operation state display apparatus by Embodiment 1. FIG. 5 is a flowchart showing an operation state change operation process of the lane operation state display device according to the first embodiment. It is an example of the timing chart which shows the display content at the time of normal operation in the command signal from a lane server to a lane display board by Embodiment 1, and a lane display board. It is an example of the timing chart which shows the display content at the time of abnormal operation in the command signal from a lane server to a lane display board by Embodiment 1, and a lane display board. It is an example of the timing chart which shows the display content at the time of the abnormal operation in the command signal from the lane server by the conventional lane operation state display apparatus shown as a comparative example from a lane server to a lane display board.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of a lane operation state display device according to Embodiment 1 of the present invention. The lane operation state display device includes a lane monitoring control device 100, a lane server 101, a lane (lane) operating device 102, a roadside interface aggregation unit 103, and a lane display board 104. The lane monitoring and control device 100 is a device that is installed, for example, indoors in a toll booth, and monitors the operation state and switching operation of a lane (lane). The lane server 101 is installed indoors, is connected to the lane monitoring and control device 100 via a LAN interface, and is connected to an outdoor roadside interface aggregation unit 103 via an optical interface, and performs communication between devices. The on-lane operation device 102 is installed outdoors on the ETC lane, and is a device for maintenance personnel on the ETC lane to manually operate the button for closing and releasing the ETC lane.

  The lane server 101 is connected to the on-lane controller 102 via an optical interface via the roadside interface aggregation unit 103, and performs communication between devices. The roadside interface aggregating unit 103 is connected to on-lane devices such as the on-lane controller 102 and the lane display board 104 by contact signals, converts the control signal from the lane server 101 from an optical signal to a contact signal, and converts each device on the lane. And a contact signal received from each device on the lane is converted into an optical signal and output to the lane server 101. The lane display board 104 is used to display the operation state of the ETC lane to the driver by driving or emitting a large LED panel, a lamp or the like based on a control signal from the contact point from the roadside interface aggregation unit 103. Device. The lane display board 104 includes a monitoring timer.

FIG. 2 is a flowchart showing operation state change operation processing of the lane operation state display device in the first embodiment.
In S110, the lane monitoring control device 100 monitors whether or not an operation switch that the lane monitoring control device has is pressed, and proceeds to S111 when the switch is pressed.

  In S111, the lane monitoring and control device 100 uses the LAN as an operation state command request as a display switching input signal to instruct the lane display board 104 to switch the operation state of the ETC lane or to maintain the operation state. To the lane server 101.

  In S112, the on-lane controller 102 monitors whether or not an operation switch that the lane control device 102 has is pressed, and proceeds to S113 if the switch is pressed.

  In S <b> 113, the on-lane controller 102 outputs a contact signal to the roadside interface aggregation unit 103.

  In S <b> 114, the roadside interface aggregating unit 103 outputs an operation state command request as a display switching input signal corresponding to each contact signal received from the lane controller 102 to the lane server 101 using an optical signal.

  In S115, the lane server 101 outputs a periodic pulse signal of the operation state command as an optical signal to the roadside interface aggregation unit 103 based on the operation state command request received from the lane monitoring control device 100 and the on-lane controller 102. . This periodic pulse continues to be output until the next operation state command content changes with a period of, for example, 500 ms.

  In S <b> 116, the roadside interface aggregating unit 103 converts the periodic pulse signal of the operation state command received as an optical signal from the lane server 101 into a contact signal and outputs it to the lane display board 104.

  In S117, the lane display board 104 determines whether or not the periodic pulse signal of the operation state command from the roadside interface aggregating unit 103 has been received. If received, the process proceeds to S118, and if not received, the process proceeds to S119. .

  In S <b> 118, the lane display board 104 performs display corresponding to the periodic pulse signal of the operation state command received from the roadside interface aggregation unit 103. For example, when the periodic pulse signal of the operation state command is a contact signal of “closed control” and corresponds to the closed display, “closed” is displayed. When the periodic pulse signal of the operation state command is a contact signal of “ETC control” and corresponds to ETC display, “ETC” is displayed. In addition, the monitoring timer for determining whether or not the periodic pulse signal of the operation state command is periodically received is cleared.

In S119, the lane display board 104 counts up the monitoring timer.
In S120, the lane display board 104 confirms whether or not the monitoring timer has reached a preset time, for example, a certain time from 1 second to several seconds. If the certain time has been reached, the process proceeds to S121, and at a certain time. If not, the process returns to S117.

  In S121, the lane display board 104 changes the display to be closed, and then moves to S117 to return to the monitoring of the periodic pulse signal of the operation state command from the roadside interface aggregation unit 103.

A specific example will be described with reference to FIGS.
First, the normal operation will be described.
FIG. 3 is an example of a timing chart showing a command signal from lane server 101 to lane display board 104 and display contents during normal operation on lane display board 104 according to the first embodiment. In FIG. 3, the lane server 101 generates a closed display command request for setting the display of the lane display board 104 to “closed” as an operation state command request. The lane display board 104 receives the closing display command signal for setting the display of the lane display board 104 as “closed” as the periodic pulse signal of the operation state command from the lane server 101 via the roadside interface aggregation unit 103. .

  Here, when the periodic pulse signal of the closing display command signal output from the lane server 101 is input to the lane display board 104, the display content of the lane display board 104 becomes “closed”. In the example of FIG. 3, after a certain period, the pulse of the periodic pulse signal of the closing display command signal is input to the lane display plate 104 again. Therefore, the lane display board 104 determines that the current display state is maintained in S117 and S118, and maintains “closed”, which is the current display of the lane display board 104.

  In addition, when an operation button for setting the lane to the ETC operation is pressed from the on-lane controller 102, the lane display board 104 generates an operation state command for changing the display from “closed” to “ETC”. In this case, the on-lane controller 102 generates an operation state command request corresponding to pressing of the operation button for ETC operation, and this operation state command request is input to the lane server 101 via the roadside interface aggregation unit 103. The lane server 101 outputs an ETC display command signal for setting the display of the lane display board 104 to “ETC” as a periodic pulse signal of an operation state instruction corresponding to the operation state instruction request, and inputs it to the lane display board 104. Simultaneously with this input, the display of the lane display board 104 is switched to “ETC”.

  Further, even when the lane monitoring and control device 100 generates an operation state command for setting the lane to the ETC operation, the lane server 101 sends an ETC display command signal for setting the display of the lane display board 104 to “ETC” as the operation state command. This is output as a periodic pulse signal of an operation state command corresponding to the command request and input to the lane display board 104. Simultaneously with this input, the display of the lane display board 104 is switched to “ETC”.

  When an operation button for closing the lane is pressed from the on-lane controller 102, the lane display board 104 generates an operation state command for changing the display from “ETC” to “closed”. In this case, the lane server 101 outputs a closed display command signal for setting the display of the lane display plate 104 to “closed” as a periodic pulse signal of an operation state command corresponding to the operation state command request, and inputs it to the lane display plate 104. To do. Simultaneously with this input, the display on the lane display board 104 is switched to “closed”.

  Further, even when the lane monitoring and control device 100 generates an operation state command for closing a lane, the lane server 101 sends a close display command signal for setting the display of the lane display board 104 to “closed”. This is output as a periodic pulse signal of an operation state command corresponding to the request and input to the lane display board 104. Simultaneously with this input, the display on the lane display board 104 is switched to “closed”.

In the normal operation, the input waveform shown in FIG. 3 is obtained, and the periodic pulse signal of the operation state command is always input. Therefore, the display according to the command corresponding to the operation state command is maintained.
For example, the lane server 101 selects the lane from when the operation button for setting the lane to ETC operation is pressed from the on-lane controller 102 until another operation state command request corresponding to the lane closing is input. A periodic pulse signal corresponding to the operation state command for ETC operation is output, and the display on the lane display board 104 is maintained as “ETC”.

Next, the operation at the time of abnormality will be described.
FIG. 4 is an example of a timing chart showing a command signal from the lane server 101 to the lane display board 104 and display contents at the time of abnormal operation on the lane display board 104 according to the first embodiment.

  When the display content of the lane display board 104 is “closed”, a periodic pulse signal of the closure display command signal is output from the lane server 101 and is input to the lane display board 104 via the roadside interface aggregation unit 103. The display board 104 determines that the current display state is maintained in S117 and S118, and maintains “closed” which is the current display.

  FIG. 4 shows an operation for changing the display of the lane display board 104 from “closed” to “ETC” based on the operation state command request from the lane monitoring controller 100 or the on-lane controller 102. An example in which there is no pulse input in the periodic pulse signal of the operation status command after a while after the status command periodic pulse (display switching input signal) is output and the display of the lane display board 104 is switched to “ETC”. ing.

  Here, the lane display board 104 cannot detect the periodic pulse of the operation state command for a certain period from the last input pulse in the periodic pulse signal of the operation state command output from the lane server 101. For this reason, the lane display board 104 determines that the system is abnormal in S120 and S121, and changes the display to “closed” by itself without a command from the lane server 101. For example, the abnormality may be caused by, for example, the connection between the lane server 101 and the lane display board 104 being disconnected, the lane server 101 being turned off, or the function of the lane server 101 being stopped for some reason. This is caused by an abnormality occurring in the lane operation status display device of the ETC system.

  Thereafter, it is assumed that there is no abnormality in the lane operation state display device of the ETC system between the lane server 101 and the lane display board 104 and the normal state is restored.

  In this case, when an operation state command request corresponding to pressing an operation button for ETC operation of the on-lane controller 102 is input to the lane server 101 via the roadside interface aggregation unit 103, the lane server 101 displays the lane display board. An ETC display command signal in which the display of 104 is “ETC” is output as a periodic pulse signal of an operation state command corresponding to the operation state command request, and is input to the lane display board 104. Simultaneously with this input, the display of the lane display board 104 is switched to “ETC”.

  Similarly, when there is an operation state command request corresponding to pressing of the operation button for closing the lane from the lane monitoring control device 100 or the on-lane controller 102, the lane server 101 displays the display on the lane display board 104 as “ETC”. ”Is changed to“ closed ”, and an operation state command is generated and input to the lane display board 104. The lane display board 104 switches the display content to “closed”.

  FIG. 5 is an example of a timing chart showing a command signal from the lane server 101 to the lane display board 104 and display contents at the time of abnormal operation on the lane display board 104 by a conventional lane operation state display device shown as a comparative example. . The conventional lane operation state display device is used only when it is desired to change the display of the lane display board 104, such as when changing the display from “ETC” to “closed” or when changing the display from “closed” to “ETC”. The operation status change command signal is input. For this reason, for example, after “ETC” is displayed, the lane display board 104 may detect an abnormality even if communication with the vehicle cannot be normally performed due to equipment failure of the lane server 101, cable disconnection, or the like. could not.

  On the other hand, the lane operation state display device according to the first embodiment can detect an abnormality based on the periodic pulse signal of the operation state command from the lane server 101 and can automatically set the display to “closed”. For this reason, it becomes possible to avoid the vehicle entering without noticing that an abnormality has occurred in the lane operation state display device.

  As described above, the lane operation status display device according to the first embodiment is installed in a toll gate, and generates a lane monitoring control device 100 that issues an operation status command request for switching or maintaining the lane operation status. A lane server 101 that receives an operation state command request from the lane monitoring control device 100 and outputs a periodic pulse signal of the operation state command via an optical line, and an operation state command received from the lane server 101 via an optical line. The roadside interface aggregating unit 103 that converts a periodic pulse optical signal into a contact signal and outputs it, and receives the periodic pulse of the operation status command of the contact signal from the roadside interface aggregating unit 103, and displays the operation status according to the command content If the operation status command periodic pulse is not received within a certain period of time, the lane is automatically closed. It is obtained by a lane display panel 104 for displaying the status.

  The on-lane controller 102 that is installed in the lane of the toll gate and generates an operation state command request for instructing switching or maintaining the operation state of the lane by manually operating a button by the maintenance staff, A roadside interface aggregating unit 103 that receives an operation state command request from the on-lane controller 102, converts a contact signal corresponding to the operation state command request into an optical signal, and transmits the optical signal via the optical line; An operation state command request is received from the roadside interface aggregation unit 103 via a line, a periodic pulse of the operation state command corresponding to the operation state command request is output to the roadside interface aggregation unit 103 as an optical signal, and the roadside interface The lane server 101 that converts the optical signal of the periodic pulse of the operation state command into a contact signal and outputs it at the aggregation unit 103, and the roadside When the periodic pulse of the operation state command of the contact signal from the face aggregation unit 103 is received and the display of the operation state is switched according to the content of the command, and the periodic pulse of the operation state command is not received within a certain time, And a lane display plate 104 that automatically displays an operation state in which the lane is closed.

  With this configuration, the lane operation state display device according to the first embodiment automatically switches the display to “closed” by the lane display board 104 based on the determination of the presence or absence of a fixed period pulse from the lane server 101. Thus, even when the lane server 101 becomes unable to control the lane display board 104, the lane display board 104 can notify the driver of entry prohibition due to “closed” of the lane, thereby maintaining the safe operation of the ETC. can do.

  DESCRIPTION OF SYMBOLS 100 Lane control device, 101 Lane server, 102 lane top operating device, 103 roadside interface aggregation part, 104 lane display board.

Claims (2)

A lane monitoring and control device that is installed at a toll booth and generates an operation state command request for switching or maintaining the operation state of a lane;
A lane server that receives an operation state command request from the lane monitoring control device and outputs a periodic pulse signal of the operation state command via an optical line;
A roadside interface aggregation unit that converts an optical signal of a periodic pulse of an operation state command received from the lane server via an optical line into a contact signal and outputs the contact signal;
When the periodic signal of the operational status command of the contact signal from the roadside interface aggregation unit is received, the display of the operational status is switched according to the content of the command, and the periodic pulse of the operational status command is not received within a certain time A lane sign that automatically displays the operational status of closing the lane,
Lane operation status display system with An operating device that is installed in the lane of the toll booth and generates an operation state command request for instructing switching or maintenance of the operation state of the lane by manually operating a button by a maintenance staff,
A roadside interface aggregating unit that receives an operation state command request from the controller and converts a contact signal corresponding to the operation state command request into an optical signal, and transmits the optical signal via an optical line;
An operation state command request is received from the roadside interface aggregation unit via the optical line, a periodic pulse of the operation state command corresponding to the operation state command request is output as an optical signal to the roadside interface aggregation unit, and the roadside interface A lane server that converts the optical signal of the periodic pulse of the operation state command into a contact signal and outputs it at the aggregation unit;
When the periodic signal of the operational status command of the contact signal from the roadside interface aggregation unit is received, the display of the operational status is switched according to the content of the command, and the periodic pulse of the operational status command is not received within a certain time A lane sign that automatically displays the operational status of closing the lane,
Lane operation status display system with

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