JP2018052322A - Electronic interlocking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide methods to extend control function of on-site apparatuses while guaranteeing safety during test or maintenance of electronic interlocking devices.SOLUTION: When transmission stops under a condition that the permission to use on-site independent control function 34 is given, an electronic terminal 30 shifts to an on-site independent mode. In the on-site independent mode, the electronic terminal 30 continues acquiring information from on-site apparatuses 50 and outputting the information to on-site apparatuses 50. However, the information to be outputted is not acquired from an interlocking logic unit 10, but generated on the basis of not only information which the terminal transaction unit 32 acquires from the on-site apparatuses 50 but also conditions given beforehand.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electronic interlocking device in a railway.

  An interlocking device is installed to control each field device at a station where a plurality of field devices such as traffic lights and switchboards are installed in a railway. The interlock device changes the turning point in a predetermined direction according to the route setting for running the train, locks the turning point, and displays the progress indicator on the traffic light for the train. To give permission. In addition, the train running status is grasped by the track circuit, the traffic lights are stopped and displayed in accordance with the train running, and the lock of the switch is unlocked. Furthermore, it has a function of giving a certain chain relationship between the devices so that the route is not hindered. In addition, when a railroad crossing is installed in the station, it is controlled.

  The electronic interlocking device that realized the interlocking function with the electronic equipment is the interlocking logic part that operates the interlocking logic, the electronic terminal part for controlling the field equipment, the control panel for visually checking the operation and status of the course setting, maintenance Consists of a maintenance department and so on. One of the features of the electronic interlocking device is a test mode that can perform interlocking inspection even when not connected to field equipment. There is known a method of testing the interlocking logic unit by stopping the electronic terminal unit during the test mode, disconnecting the field device, and substituting the field device with a simulation function (see, for example, Patent Document 1). .

  Note that when the interlocking logic unit is stopped for maintenance, all the electronic terminal units stop receiving the instruction from the interlocking logic unit even if they are normal, and stop the control of the field equipment.

JP2012-001012A

  By the way, the role of the electronic terminal unit is to control the field device based on the instruction of the interlocking logic unit, acquire the state of the field device, and send it back to the interlocking logic unit. When interlocking inspection is performed in the test mode described above or when the interlocking logic unit is stopped for maintenance, all electronic terminal units stop on-site equipment control based on the instructions of the interlocking logic unit. In this case, the on-site equipment operates on the safe side, that is, the traffic light is stopped and the switch is locked in the previous conversion state. There are many cases where railroad crossings in the station are in a ringing state (including ringing of alarms and lowering of a cut-off fence), and in general, workers are dispatched to each level crossing to handle the suspension of use. . Normally, during the test mode and during maintenance of the interlocking logic unit, there is a demand for a state where the railroad crossing is not sounded, if possible, without handling the suspension of use so as to prevent the train from running by closing the track.

  This invention is made | formed in view of such a condition, Comprising: It is providing the technique which solves the said subject.

The present invention is an electronic interlocking device comprising an interlocking logic unit having an interlocking function for the entire control range, and an electronic terminal unit for controlling field equipment including a traffic light based on an instruction from the interlocking logic unit, the electronic terminal unit Includes a field independent control function for controlling the field device based on a predetermined condition independently of the processing result of the interlocking logic unit.
In addition, when a plurality of the electronic terminal units are provided, only some of the electronic terminal units execute the site independent control function, and the other electronic terminal units have interlocking control information acquired from the interlocking logic unit. And a mode for executing a function of controlling the field device.
Moreover, when the said electronic terminal part performs the said field independent control function, you may provide the interlocking function limited to the control range of the said field device which each of the said electronic terminal part controls.
Further, when the electronic terminal unit executes the on-site independent control function, the interlocking logic unit may have a function of setting simulated information that substitutes for information on the on-site equipment.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which continues control of a field device can be provided, ensuring safety | security at the time of the test of an electronic interlocking device, and a maintenance.

It is a block diagram which shows the system configuration | structure of the electronic interlocking device based on embodiment. It is a figure explaining operation | movement of the electronic interlocking device at the time of normal based on embodiment. It is a figure explaining operation | movement of the electronic interlocking device at the time of field independent mode based on embodiment. It is the figure which showed simply the operation | movement at the time of normal time and a field independent mode based on embodiment so that an understanding might be easy. It is a block diagram which shows the system configuration | structure of the electronic interlocking apparatus which concerns on the modification of embodiment.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings. Hereinafter, in the electronic interlocking device, an on-site independent control function that can be used only in the test mode is added to the electronic terminal unit. During the execution of the mode for operating the on-site independent control function (hereinafter referred to as “on-site independent mode”) in accordance with an instruction from the interlocking logic unit, the electronic terminal unit does not depend on the processing result of the interlocking logic unit in advance. Control on-site equipment based on defined conditions.

FIG. 1 is a block diagram showing a system configuration of an electronic interlocking device 100 according to the present embodiment.
The electronic interlocking device 100 includes an interlocking logic unit 10 having an interlocking function for the entire control range such as the station premises and the entire line section, a control panel 21 for setting a course and displaying an interlocking state, and maintenance for performing maintenance operations and operation records. The unit 22 includes an electronic terminal unit 30 that controls field devices such as traffic lights, and a field device 50.

  Here, the first to nth electronic terminal units 30 </ b> _ <b> 1 to 30 </ b> _n are shown as the electronic terminal unit 30, and when these are not distinguished, they are simply referred to as “electronic terminal unit 30”. Moreover, as the field device 50, here, a traffic light 51, a turning machine 52, a track circuit 53, and a railroad crossing 54 are illustrated.

  The interlocking logic unit 10, the control panel 21, and the maintenance unit 22 are usually installed on the premises. One or a plurality of electronic terminal units 30 are installed on the premises, and when a plurality of electronic terminal units are installed, the field devices 50 are divided into control ranges, and each electronic terminal unit 30 controls the field devices 50 within a specific control range. To do. The electronic terminal unit 30 may be installed at the same location as the interlocking logic unit 10 or may be installed at another location including an adjacent station.

  The interlocking logic unit 10 includes a communication processing unit 11 having logic for performing interlocking control, a transmission unit 12 that performs communication with the electronic terminal unit 30, a communication unit that performs communication with the control panel 21 and the maintenance unit 22 (see FIG. Not shown).

  The electronic terminal unit 30 includes a transmission unit 31, a terminal processing unit 32, and an input / output unit 33. The transmission unit 31 communicates with the interlocking logic unit 10. The input / output unit 33 is connected to the field device 50. The terminal processing unit 32 controls the input / output unit 33 based on the information received by the transmission unit 31 and transmits the information acquired from the input / output unit 33 to the transmission unit 31. In addition, the terminal processing unit 32 includes an on-site independent control function 34. During execution of the on-site independent mode for operating the on-site independent control function, the on-site equipment 50 is controlled based on a predetermined condition regardless of the processing result of the interlocking logic unit 10. Details will be described later.

  The communication between the interlocking logic unit 10 and the electronic terminal unit 30 employs a polling method in which the interlocking logic unit 10 is a parent device and the electronic terminal unit 30 is a child device, and the interlocking logic unit 10 polls control information at regular intervals. The information is transmitted, and each electronic terminal unit 30 communicates with each other by returning to the polling information addressed to itself. That is, when the interlocking logic unit 10 stops transmission, the electronic terminal unit 30 also stops replying.

  Next, the operation of the electronic interlocking device 100 will be described with reference to FIGS. FIG. 2 is a diagram for explaining the operation of the electronic interlocking device 100 at the normal time. FIG. 3 is a diagram for explaining the operation of the electronic interlocking device 100 in the field independent mode. FIG. 4 is a diagram simply showing the operation in the normal mode and the field independent mode so as to facilitate understanding.

(A) Normal Operation The normal operation will be described with reference to FIGS. 2 and 4A.
The electronic terminal unit 30 obtains, for example, the switchover display information S5, the switch lock display information S6, the train line display information S7, and the like as field device information via the input / output unit 33.
The turning machine conversion display information S <b> 5 is information indicating the opening direction (localization or inversion) of the turning machine 52, and is obtained from the turning machine 52.
The switch lock display information S6 is information indicating the locked state (locked or unlocked) of the switch 52 and is obtained from the switch 52.
Train presence line display information S <b> 7 is information indicating the presence state of a train (with or without a train) and is obtained from the track circuit 53.

  The input results are collected by the terminal processing unit 32 and transmitted to the interlocking logic unit 10 via the transmission unit 31. Based on the route setting information from the control panel 21 and the field device information from the electronic terminal unit 30, the interlocking logic unit 10 creates the interlocking control information according to the logic given in advance.

As the interlock control information, for example, there are switch switching control information S1, switch lock control information S2, traffic signal display control information S3, and railroad crossing sound control information S4.
The switch machine switching control information S1 is information for switching the switch machine 52 to a fixed position or an inverted position.
The switch mechanism lock control information S2 is information for locking the switch machine 52.
The traffic signal display control information S3 is information for making the traffic signal 51 a progress display or a stop display.
The level crossing sounding control information S4 is information for sounding or stopping the level crossing 54.

  In order to create such interlocking control information, field device information for the entire premises is required, and each interlocking control information needs to be mutually verified. There is a need.

  The created interlocking control information is divided according to the control range of the field device 50 and transmitted to the electronic terminal unit 30 connected to the field device 50 via the transmission unit 12.

  The electronic terminal unit 30 uses the interlock control information received from the interlock logic unit 10 to control the input / output unit 33 and operate the field device 50.

  The terminal processing unit 32 controls the transmission unit 31 and the input / output unit 33 and inputs / outputs information, but does not process information. For example, when the electronic terminal unit 30 sounds a railroad crossing due to the approach of a train, the electronic terminal unit 30 acquires train approach (train presence line display information S7 falls) information and transmits the information to the interlocking logic unit 10 without processing. The interlocking logic unit 10 creates railroad crossing ringing control information S4 based on the previously given logic based on the train presence line display information S7 and transmits it to the electronic terminal unit 30. The electronic terminal unit 30 performs ringing control on the field device 50 (crossing 54) without processing the received information. That is, the interlocking logic unit 10 processes the information acquired via the electronic terminal unit 30 and controls the field device 50 via the electronic terminal unit 30 based on the information. It can be said that it is an output function part.

(B) Transition to Test Mode and Release of Electronic Terminal Unit 30 Operations in the test mode and the field independent mode will be described with reference to FIGS. 3 and 4B.
The interlocking logic unit 10 can be shifted to the test mode by operating the maintenance unit 22. When the interlocking logic unit 10 shifts to the test mode, the operation of the maintenance unit 22 can permit the use of the on-site independent control function 34 from the interlocking logic unit 10 to the electronic terminal unit 30. Furthermore, the operation of the maintenance unit 22 can release (separate) the electronic terminal unit 30.

  When the interlocking logic unit 10 releases the electronic terminal unit 30, the interlocking logic unit 10 stops transmitting the interlocking control information output to the electronic terminal unit 30. Then, the reply of the field device information output from the electronic terminal unit 30 to the interlocking logic unit 10 is also stopped.

  Note that the interlocking logic unit 10 in the test mode can independently perform a test based on the simulation information acquired from the maintenance unit 22 instead of releasing the electronic terminal unit 30. As shown in FIG. 3, as simulated information, there are, for example, simulated switchover display information S51, simulated switchlock display information S61, and simulated train presence line display information S71. Further, the interlocking logic unit 10 can be stopped including turning off the power of the interlocking logic unit 10 for maintenance.

(C) When the electronic terminal unit 30 is in the field independent mode The electronic terminal unit 30 shifts to the field independent mode when the transmission is stopped in a state where the use permission of the field independent control function 34 is received.

  In the field independent mode, the electronic terminal unit 30 continues to acquire information from the field device 50 and also continues to output to the field device 50. However, the information to be output is not acquired from the interlocking logic unit 10, but is created based on the information acquired by the terminal processing unit 32 from the field device 50 and conditions given in advance.

  For example, when a railroad crossing is sounded by the approach of a train, the input / output unit 33 acquires train approach (train presence line display information S7 falls) information. The terminal processing unit 32 creates railroad crossing ringing control information S41 based on the previously given logic based on the train presence line display information S7 and the like, and performs ringing control on the field device 50 (here, the crossing 54).

  When the electronic terminal unit 30 is released in the test mode when there is no on-site independent control function 34 or when the use permission of the on-site independent control function 34 is not given, the electronic terminal unit 30 is linked and controlled from the linkage logic unit 10. Since information can no longer be received, the only way to make a railroad crossing is to consider safety regardless of the presence or absence of a train. However, under the on-site independent mode, if the train is not on track, it is not necessary to ring the level crossing 54. If the train approaches, the level crossing 54 can be ringed. Unnecessary level crossing sounds can be suppressed.

(D) End of Test Mode When the interlocking logic unit 10 stops releasing the electronic terminal unit 30 by operating the maintenance unit 22, the interlocking logic unit 10 resumes transmission of the interlocking control information to be output to the electronic terminal unit 30. Then, the reply of the field device information output from the electronic terminal unit 30 to the interlocking logic unit 10 is also resumed.

  As a result, the electronic terminal unit 30 also ends the field independent mode, continues to acquire field device information as usual, and controls the field device 50 based on the interlock control information acquired from the interlock logic unit 10. Furthermore, the normal operation is restored by terminating the test mode of the interlocking logic unit 10 by operating the maintenance unit 22.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications are possible for the combination of each of those components, and such modifications are also within the scope of the present invention. Such a modification will be described next.

<Modification A> Application Other than Railroad Crossing Control In the above-described embodiment, an example in which unnecessary crossing ringing is not performed at the time of maintenance of the interlocking logic unit 10 is described. By appropriately dividing the 30 control ranges, it is possible to realize a partial interlocking function limited to the control range.

  FIG. 5 is a block diagram showing a system configuration of the electronic interlocking device 100 when the field device is divided into three control ranges. The first field device 50a is connected to the first electronic terminal unit 30_1. The second field device 50b is connected to the second electronic terminal unit 30_2. The third field device 50c is connected to the third electronic terminal unit 30_3.

  By using the conditions of the first field device 50a (signals (1RB, 1RA), switch (21), track circuit (21T, 1RBT), railroad crossing) connected to the first electronic terminal unit 30_1, the route 1RB It is possible to realize the interlocking function related to the vehicle, and it is possible to run the train on the same route.

  Specifically, when the switch (21) is panned and locked, the interlocking logic unit 10 is shifted to the test mode, and the first electronic terminal unit 30_1 is allowed to use the field independent control function. When the first electronic terminal unit 30_1 is released, the first electronic terminal unit 30_1 enters the field independent mode.

  In the first electronic terminal unit 30_1, “the turning machine (21) is in position” (turning machine conversion display information S5), “the turning machine (21) is locked” ( When all of the switchboard lock display information S6), “the train is not on the track circuit (21T) and (1RBT)” (the train presence line display information S7) is established, the “signal (1RB) By giving the condition of “display progress” (signal display control information S31), the interlocking function related to the signal (1RB) can be performed in the same way as normal, and the signal (1RB) according to the running of the train Can be controlled. It is also possible to sound a railroad crossing in line with train travel.

<Modification B> Partial application of on-site independent mode In the above-described embodiment, in the test mode, all the electronic terminal units 30 are released and operated in the on-site independent mode. It is also possible to set so that the operation is continued in the field independent mode, and the other electronic terminal units 30 are not released, and the processing is continued according to the instruction of the interlocking logic unit 10. For example, FIG. 4C shows an operation example when such control is performed. Only the first electronic terminal unit 30_1 implements the partial interlocking function as described in <Modification A> by the field independent mode, and the other second electronic terminal unit 30_2, the third electronic terminal unit 30_3, and the interlocking logic. The unit 10 can perform an input / output test of the second electronic terminal unit 30_2 and the third electronic terminal unit 30_3 by setting the test mode.

<Modification C> Method for Transitioning to the Field Independent Mode In the above-described embodiment, the electronic terminal unit 30 is transitioned to the field independent mode by operating the maintenance unit 22. It is also possible to provide a method for shifting to the on-site independent mode by setting the operation unit.

DESCRIPTION OF SYMBOLS 10 Interlocking logic part 11 Interlocking process part 12 Transmission part 21 Control board 22 Maintenance part 30 Electronic terminal part 30_1 1st electronic terminal part 30_2 2nd electronic terminal part 30_3 3rd electronic terminal part 30_n nth electronic terminal part 31 Transmission part 32 Terminal Processing unit 33 Input / output unit 34 On-site independent control function 50 On-site equipment 50a First on-site equipment 50b Second on-site equipment 50c Third on-site equipment 51 Traffic light 52 Turning machine 53 Track circuit 54 Railroad crossing 100 Electronic interlocking device

Claims (4)

An electronic interlocking device comprising an interlocking logic unit having an interlocking function for the entire control range, and an electronic terminal unit for controlling field equipment including a traffic signal based on an instruction of the interlocking logic unit,
The electronic interlocking device is provided with a field independent control function for controlling the field device based on a predetermined condition independently of a processing result of the interlocking logic unit.   When a plurality of the electronic terminal units are provided, only some of the electronic terminal units execute the site independent control function, and the other electronic terminal units are based on the interlock control information acquired from the interlock logic unit. The electronic interlocking device according to claim 1, further comprising a mode for executing a function of controlling the field device.   The said electronic terminal part is equipped with the interlocking function limited to the control range of the said field device which each of the said electronic terminal part controls, when performing the said field independent control function, The Claim 1 or 2 characterized by the above-mentioned. Electronic interlocking device.   4. The system according to claim 1, wherein when the electronic terminal unit executes the on-site independent control function, the interlocking logic unit has a function of setting simulated information that substitutes for information on the on-site equipment. The electronic interlocking device according to item 1.

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