JP7346143B2 - Interlocking control system - Google Patents

Description

The present invention relates to an interlock control system.

Conventionally, systems that collectively control a specific section of a railway line, that is, multiple line sections, have consisted of an operation management system that manages the operation of vehicles running on a predetermined section, a dedicated network system, and a system installed at each station. The interlocking control system controls on-site equipment such as signals and switch machines installed inside each station and along the railway lines.

In addition, there is a centralized electronic interlocking device that performs one interlocking control system for on-site equipment installed at multiple stations.

Furthermore, conventional block management for single-track sections, that is, block control, is performed using directional levers and directional lines that connect stations.

In addition, conventionally related technologies include JP2018-069971A (Patent Document 1), JP2015-071390A (Patent Document 2), JP2005-170174A (Patent Document 3), JP2013-A -184545 (Patent Document 4), etc.

Patent Document 1 describes ``a line central electronic interlocking device for safely securing the route of railway vehicles in an entire line section including multiple stations, comprising an electronic interlocking logic section and a plurality of electronic terminals, Including electronic terminals installed corresponding to the jurisdictional range of each station within the line section and electronic terminals installed corresponding to the jurisdictional scope of one or more stations between each station, and at each station within the line section and between each station. Each field device is provided with a field device, and the field device within the jurisdiction of each electronic terminal is connected to the corresponding electronic terminal, and the electronic interlocking logic unit and the plurality of electronic terminals are connected to each other. and a fail-safe transmission network for transmitting various data between the lines, and the electronic interlocking logic unit centrally manages the interlocking functions of the entire line section, A line section centralized electronic interlocking device, characterized in that it remotely controls all of the field equipment.''
Patent Document 2 states, ``The electronic interlocking system 1 connects the main interlocking device 10 and the field terminal 20 through a sparse transmission communication line N1 that performs low-frequency communication, and connects the field terminal 20 and the field equipment 40. The terminals 20 and the field terminals 20 are connected to each other by a dense communication line N2 that performs high-frequency communication. "Continuous constant monitoring is not performed, but the field terminal 20 monitors the status of the field equipment 40" (see the summary).
Patent Document 3 states, "The software simulation device has a software logic block 200 in the device, and the software logic block 200 performs processing for each station targeted for simulation (A station processing 220A, B station processing 220B, and C station processing. 220C), a startup management process 210 that manages the startup conditions of each station process 220A to 220C of the station process 220, and a train detection condition and train in each station process 220A to 220C of the station process 220. and a shared memory 250 for storing data required for train control such as detection results.'' (see abstract).
Patent Document 4 states, ``A method for generating a route control program developed by multiple developers, wherein the method includes a computer that has a processor that executes the program and a memory that stores the program that is executed by the processor. The computer system includes a database that stores track information including track shapes and blocks, and control logic that is a component of the route control program, and the method is executed in a computer system that includes a , a first step of dividing the track information stored in the database and allocating the divided track information to developers according to the developer's disclosure level and skill level; a second step of allocating control logic stored in the database to the route and geometry included in the track information; and a third step in which the processor supplements information for combining the assigned control logic. ``A method for generating a course control program, characterized by including the following.''

JP2018-069971A Japanese Patent Application Publication No. 2015-071390 Japanese Patent Application Publication No. 2005-170174 Japanese Patent Application Publication No. 2013-184545

However, conventional centralized electronic interlocking devices treat the entire line section as one station, which poses a problem in that they are not suitable for gradual system construction. For example, when updating a system in stages, it is difficult to link with existing systems, it takes time to switch systems, and it becomes difficult to secure testing time.
In addition, systems using directional circuits to manage single-line blocks consist of metallic cables, relays, and power supplies. Therefore, there was a problem in terms of maintainability.

In addition, in the line central electronic interlocking device described in Patent Document 1, the interlocking logic unit that controls the interlocking device has a redundant single configuration, and is single in the line section, so the interlocking logic program (control process) There was a problem in that if the line stopped, it would disrupt the operation of the entire line. Additionally, it is difficult to introduce the system in stages.
Patent Documents 1 to 4 do not consider dividing the interlocking logic into functional units or station units. For this reason, we aim to ``secure the route of railway vehicles throughout the line section, including between stations, and aim for efficient train operation'', ``reduce installation and maintenance costs while ensuring safety'', "Multiple software can be efficiently verified on a single PC" and "When developing software by dividing design work at distributed development bases, it prevents the leakage of know-how outside the company" The effect remains.

Therefore, in the present invention, the interlocking logic (station control process) is divided into function units and station units, and it is possible to stop functions in function units and station units in case of program abnormalities.In other words, program abnormalities can be localized, and program We provide technology that allows maintenance of control data to be performed on a function-by-function and station-by-station basis, allowing the system (interlocking devices, etc.) to be built in stages without stopping the operation of the entire line section using the train operation management system. The purpose is to
Problems, configurations, and effects other than those described above will be made clear by the description of the embodiments below.

In order to solve the above problems, the present invention includes a first control device provided at a first point, a second control device and a third control device corresponding to each station, and a second control device corresponding to each station. The device and the third control device include a communication interface that connects the first control device and station field equipment, and the first control device includes a station control process corresponding to each station that operates on middleware, and communicates between the station control processes. Process communication is possible, and each station field device can be controlled from the first control device via the communication interface.
For example, one of the representative interlocking control systems of the present invention is
The first control device (line area total system integration device including processor and shared memory) installed at the first point, the second control device (field control device including FC) and third control device (FC (on-site control device), and a communication control device (SW-HUB) provided at at least two or more locations that enables communication between the first and second control devices,
The second control device and third control device (FC) corresponding to each station are:
a communication interface that is communicably connected to station field equipment (traffic lights, switch machines) corresponding to each station and that is communicably connected to the first control device;
a field equipment control device (field control FC) corresponding to each station that controls the station field equipment (signal, switch) in response to commands from the first control device;
The first control device includes:
An operating system, middleware running on the operating system, and application software for each station running on the middleware and having a one-to-one correspondence with the second control device,
The middleware operates a station control application process using any of the application software corresponding to each station based on the commands of the operating system, and controls the station field equipment (traffic lights, turntables, etc.) corresponding to each station via the second control device. It is characterized by being able to control two machines).

According to the present invention, for example, by configuring the interlocking logic (station control process) on the line section total system integration device side, which is a higher-level control device, to be divided into functional units and station units, operation management of the entire line section is achieved. System updates can be built in stages without stopping the system.

Furthermore, according to the traffic management system that uses the communication path of the train central control device, the network was configured with multiple layers, which caused problems with high cost and low responsiveness, but according to the present invention, for example, , it is possible to reduce the number of network layers, CTC station devices, and interlocking devices, thereby reducing costs, and it is possible to correct these problems.

FIG. 1 is a block diagram showing the configuration of an interlocking control system of the present invention. The figure which shows an example of the process structure of a line total system integration device (control device). FIG. 3 is a diagram showing another example of the process configuration of the line section total system integration device (control device). FIG. 3 is a diagram illustrating an example of a single line control method when a system is constructed step by step based on the process configuration of a line section total system integration device.

Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the interlock control system of the present invention.
The interlocking control system includes a host device 1 including a traffic control system 11 (PTC: Programmed Traffic Control), a track total system integration device 12, and a CTC central device 13, which are installed in a central control equipment room located at a high-level point. A station field control device 31 corresponding to each station (A station field control device 31A to N station field device It has an on-site control device 31N) and at least two or more communication control devices 21 provided at intermediate points. The host device 1 may incorporate a CTC station simulating device 15 that simulates a CTC station device 14 (see FIG. 4) at each station, which will be described later.

The operation management system 11 manages the operation of vehicles traveling in a predetermined section, and includes an information processing device (EDP) that creates and manages a train operation schedule, and a train central control device (CTC) that creates and manages a train operation schedule. :Centralized Traffic Control/hereinafter referred to as the CTC central device 13), the CTC station device 14 (see FIG. 4), etc., are collectively managed by a computer system.

As will be described later with reference to FIG. 4, the CTC central device 13 operates the interlocking devices of traffic lights and turnouts (switches) in units of certain sections of the route based on information from the traffic management system 11. It is a system that can be remotely controlled from a command center or a train control center, and has a plurality of communication control devices 21 that constitute a communication path (transmission path) that enables remote control. The CTC central device 13 is installed at a CTC center, which is a place where command operations are performed.

The line section total system integration device 12 is installed in a command center, integrates all line sections, and is a system that comprehensively manages each station, for example, A station to N station, and controls station field equipment 41 at each station. A control device includes a processor 121 such as a CPU that performs a station control process using application software corresponding to each station, which is in one-to-one correspondence with the field control device 31, and a common memory 122 that develops a station control process using application software corresponding to each station. have The processor 121 and the common memory 122 constitute an interlocking logic unit (control process). The interlocking logic unit (control process) of the line section total system integration device 12 will be described later.

The station field equipment 41 and the station field control device 31 control the A station field devices 41A to N station field devices 41N and the A station field control devices 31A to N station field control devices 31N corresponding to each station, that is, A station to N station. include.

The processor 121 executes an operating system (OS), which will be described later, a system management process using middleware software, and a station control process using application software.

The common memory 122 is a memory that is accessed simultaneously by multiple application software (OS) programs, and stores the state of the direction line indicating the direction of travel of the train between the stations for single track direction lever control, that is, the train state to be managed in the block. includes a shared table (not shown) for

The communication control device 21 has at least two or more devices and controls transmission and reception of control data (control contents), commands, etc. with the line section total system integration device (control device) 12, and each communication control device 21 has at least two The processor 121 (control device) of the district total system integration device 12 and the network (communication line) are connected. The communication path of the CTC central unit may be used as this network.

The station field equipment 41 is station field equipment 41A to 41N installed in the station premises or along the railway lines of each station, and is one of the security equipment such as traffic lights 411A to 411N and switch machines 412A to 412N.
Note that in the case of large stations, multiple interlocking devices may be installed at one station. For example, in the case of Yokohama Station, the Tokaido Main Line and Yokosuka Line are separated, but multiple interlocking devices have been introduced to allow them to connect to each other.

The station field control device 31 includes an IOC (input/output controller), FC (field controller), and communication interfaces 313A to 313N (communication IF) corresponding to each station, and is connected to the upper line section total system integration device 12 (control device). Upon receiving the command, it controls station field equipment 41A to 41N (signals, switch machines, etc.) installed at each station (A station to N station).

The communication interfaces 313A to 313N (communication IF) are communicably connected to the station field equipment 41, and perform bidirectional communication between the communication control device 21 and the higher-level line section total system integration device 12 (control device). Possibly connected.
Thereby, each station field device can be controlled from the line section total system integration device 12 (control device) via each station field control device, and responsiveness can be improved. Furthermore, it is also possible to reduce the number of communication control devices.

FIG. 2 is a diagram showing an example of a process configuration of the line total system integration device 12 (control device).

The control device (processor 121) in the line total system integration device 12 has an operation system 123 (OS) running on the hardware 120 (processor 121, common memory 122) as its interlocking logic unit, that is, a process configuration. It has a middleware 124 (system management process) that runs on the system 123 (OS), and application software 125 (station control processes 125A to 125N for each station/A station to N station) that runs on the middleware 124 (system management process).

Hardware 120 includes a processor 121/common memory 122.
The processor 121 executes each control process (A station control process 125A to N station control process 125N) in each application software 125.

Further, the processor 121 combines control data (control contents) from each station control process 125A to 125N of the application software 125 and processes it on the common memory 122 as an indivisible operation.

Each station control process 125A to 125N by application software 125 is developed in common memory 122.

The middleware 124 (system management process) constitutes an interlocking control system that operates any one of the A station control processes 125A to N station control processes 125N of the application software 125 based on commands from the operating system 123 (OS).

The application software 125 has a one-to-one correspondence with the communication control device 21 and the field control devices 31A to 31N at each station.
In other words, each application software 125 that has a one-to-one correspondence with the communication control device 21 and the station field control devices 31A to 31N of each station is operated by the processor 121, and the control data (control content) by each application software is Create.
Each application software operates independently and implements the same functionality.

Further, each application software 125 can also implement different functions. For example, in response to a command from a maintenance terminal (not shown) installed in a command center located above, the station field control devices 31A to 31N of each station remotely stop or program the station field equipment 41A to 41N. Allows updates and startup.

Between each station (A station to N station) of station control processes 125A to 125N (A station control process 125A to N station control process 125N) in each application software 125, interprocess communication, that is, train Data indicating the state of the direction line indicating the driving direction is exchanged between multiple processes. Then, single-line direction lever control is possible based on the state of the direction line.
The state of this direction line is stored, for example, in a shared table in a shared memory, and is used to manage the blocks between stations. In addition, the entire line section may be treated as one premises, and the direction lever may be referred to as described in the interlocking table. The interlocking table describes the directional lever conditions of adjacent stations.

As described above, since the A station control process 125A to N station control process 125N corresponding to each station in the application software 125 is operated on the middleware 124, the A station control process 125A to N station control process 125N corresponding to each station is operated. This makes it possible to construct the A station field equipment 41A to N station field equipment 41N and the A station field control device 31A to N station field control device 31N for each station A to N. In other words, the interlocking logic (station control process) can be divided into functional units. , the system can be constructed by dividing it into individual stations, and it can be implemented without stopping the operation of the entire line section.

FIG. 3 is a diagram showing another example of the process configuration of the line total system integration device 12 (control device).

The line section total system integration device 12 has a process configuration such as a virtual operation system 123' (virtual OS) running on the hardware 120 (processor 121, common memory 122), and a virtual operation system 123' (OS) running on the hardware 120 (processor 121, common memory 122). The station OS (A station OS 1241A to N station OS 1241N) of each station (A station to N station) that operates on the station OS, the station system management process (A station system management process 1242A to N station) of each station (A station to N station) that operates on the station OS The station system management process 1242N) is composed of application software 125 (A station control process 125A to N station control process 125N) that runs on the station system management process (A station system management process 1242A to N station system management process 1242N). Good too.

FIG. 4 is a diagram illustrating an example of a single-line control method when building a system in stages.

When constructing a system in stages, for example, when constructing a system for B station after constructing a system for A station, the B station relay interlocking device 315B is placed in the B station field control device 31B, and the A CTC station device 14 controlled by the CTC central device 13 is disposed between the CTC central device 13 at the station and the B station field equipment control device 310B and the B station relay interlocking device 315B at the B station field control device 31B.

At this time, the B station field equipment control device 310B is separated from the B station field equipment 41B by the switch 314B, and the B station field equipment control device 310B is constructed.
During this period, the B station field equipment 41B can be controlled through the route of the CTC central device 13, CTC station equipment 14, B station relay interlocking device 315B, and B station field equipment 41B.

The B station relay interlock device 315B performs direction line status communication with the FC 312A on the A station field control device 31A side, and interlocks the A station field control device 31A and the B station field control device 31B.

At this time, if the A station side is an existing interlocking device (non-relay interlocking device), the existing interlocking device side has an interface (I/ F) Implement the conversion function in advance. In other words, the function of converting relay input/output to an existing interlocking device interface is a function of converting relay input/output data (data indicating the state of a direction line) to data suitable for the existing interlocking device.
In this example, a plurality of interlocking devices are installed at a command center or at a station to enable mutual exclusive control.

That is, during system construction, the B station field equipment 41B can be controlled using the route of the CTC central device 13, CTC station equipment 14, B station relay interlocking device 315B, and B station field equipment 41B.

After constructing the B station system, the B station relay interlocking device 315B and the B station field equipment 41B are disconnected, and the B station field control device 31B and the B station field equipment 41B are connected by the switch 314B.

Hardware 120 (processor 121/common memory 122), operation system 123 (OS), middleware 124 (system management process), application software 125 (B station control process), communication control device in the line section total system integration device 12 21. It is possible to control the B station field equipment 41B through the route of the station field control device 31 (B station field control device 31B) and the station field equipment 41 (B station field equipment 41B).

Therefore, after constructing the system in this way, the CTC station equipment 14, the B station relay interlocking equipment 315B, and the transmission line connecting them are no longer necessary and can be deleted. A configuration as shown in 1 can be adopted.
Furthermore, in constructing the system, a single relay interlocking device (B station relay interlocking device 315B) can perform interlocking control of a plurality of stations, and the device configuration on the field side can be simplified.

According to the embodiment described above, since the interlocking control system controls the total line section, it is possible to reduce the number of station equipment such as interlocking devices.
In addition, by configuring the interlocking logic unit (station control process) and control device (communication control unit) to be connected via a network, the number of station equipment such as interlocking devices can be reduced, reducing responsiveness and increasing installation costs. improve responsiveness and reduce implementation costs.
Furthermore, when configuring the system in stages, safety can be ensured by using devices, operation systems, middleware, and application processes that do not affect other stations.
Furthermore, a CTC simulator 15 may be provided between the line section total system integration device 12 and each field control device, and connectable to the CTC central device 13, thereby simulating the CTC station device at each station. The CTC station simulation device 15 may be incorporated into the line section total system integration device 12.

Note that the present invention is not limited to the embodiments described above, and includes various modifications. For example, the embodiments described above are described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Furthermore, it is possible to add, delete, or replace some of the configurations of each embodiment with other configurations. Furthermore, each of the above configurations, functions, etc. may be realized by software by a processor interpreting and executing a program for realizing each function. Information such as programs, tables, files, etc. that implement each function can be stored in a memory, a recording device such as a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, SD card, or DVD.

1 Interlocking control system 11 Traffic management system 12 Line section total system integration device 121 Processor 122 Common memory 123 Operation system (OS)
124 Middleware/system management process 125 Application software 125A to 125N A station control process to N station control process 13 CTC central device 14 CTC station device 15 CTC station simulation device 21 Communication control device 31 Station field control device 31A to 31N A station field control Device - N station field control device 41 Station field equipment 41A - 41N A station field equipment - N station field equipment 411A - 411N Signal 412A - 412N Switch machine

Claims (4)

A first control device and a second control device provided at a lower point and controlling the first station field equipment and the second station field equipment, a third control device provided at a higher point, and the first control device , a communication control device provided at at least two or more points that enables communication between the second control device and the third control device,
The first control device and the second control device are
a communication interface that is communicably connected to the first station field equipment and the second station field equipment, and that is communicably connected to the third control device;
The third control device includes:
an operating system, middleware that runs on the operating system, first station compatible application software that runs on the middleware, and is in one-to-one correspondence with the first control device and the second control device; station compatible application software;
The middleware operates one of a first station control process and a second station control process of the first station compatible application software and the second station compatible application software based on the commands of the operating system, and The first station field equipment and the second station field equipment can be controlled via the device and the second control device ,
The first control device and the second control device are
consisting of a field controller of a station field control device that controls the first station field equipment and the second station field equipment,
When constructing a system for a station adjacent to the side where the second station field equipment is installed after constructing a system at the station where the first station field equipment is installed,
A relay interlocking device for the CTC station equipment and the second station field equipment is provided between the CTC central equipment that performs command operations to control the first station field equipment and the second station field equipment, and the second station field equipment. place,
The relay interlocking device is
connected to the CTC station device, the second station field equipment, and the first control device;
communicating a directional line state with the field controller of the first control device, and performing single-line directional lever control based on the directional line state;
After constructing a system for a station adjacent to the side where the second station field equipment is installed, the connection between the relay interlocking device and the second station field equipment is disconnected, and the second station field equipment is controlled by the second station. connect to device
An interlocking control system characterized by: In the interlocking control system according to claim 1 ,
The third control device includes:
Consists of the processor of the line section total system integration device that integrates all line sections and comprehensively manages each station.
further comprising a common memory in which the first station control process and the second station control process are expanded by the first station compatible application software and the second station compatible application software;
The contents of control by the first station control process and the second station control process are combined, and the direction line state is communicated between the first station control process and the second station control process to determine the direction line state. An interlocking control system characterized by performing single-line direction lever control. In the interlocking control system according to claim 1,
A CTC station simulating device that simulates the CTC station device is provided between the CTC central device and the third control device,
The interlocking control system is characterized in that the application software corresponding to the first station and the application software corresponding to the second station operate independently and can be stopped, updated, and started remotely from a host maintenance terminal. In the interlocking control system according to claim 1 ,
It includes a shared table that stores the train status between each station and the direction line status indicating the direction of travel, and the shared table manages the blocks between each station,
When the adjacent station is an existing interlocking device, the relay interlocking device implements an existing interlocking device interface conversion function in the existing interlocking device, and communicates the direction between the field controller of the first control device and the relay interlocking device. An interlocking control system characterized by the ability to communicate line status.

Images