WO2017208421A1

WO2017208421A1 - Electronic interlocking system

Info

Publication number: WO2017208421A1
Application number: PCT/JP2016/066404
Authority: WO
Inventors: 貫造関
Original assignee: 株式会社京三製作所
Priority date: 2016-06-02
Filing date: 2016-06-02
Publication date: 2017-12-07

Abstract

Provided are: a technology for realizing a novel electronic interlocking system that allows flexible design for a configurational layout of devices involved in electronic interlocking; and a novel technology capable of solving the abovementioned problem with regard to interlock data and programs for electronic interlocking. In an electronic interlocking system 1, a vital circuit or a non-vital circuit is used to connect: an interlocking logic device 10 for executing arithmetic processing in relation to interlocking logic on the basis of connection data stored in a storage unit 24; an electronic terminal device 30 for controlling field equipment via a relay unit 40; an operating panel 52; and a service monitor 54. The electronic interlocking system 1 comprises a connection data preparation device 80 that converts an inputted logical formula into a connection wiring diagram and displays the diagram, and that also converts the logical formula into connection data and stores the data in an external memory 70.

Description

Electronic interlocking system

The present invention relates to an electronic interlocking system.

In railways, interlocking devices that operate on-site equipment such as traffic lights, switchboards, track circuits, etc., which are driving and safety equipment, are used in the premises of train stations such as stations and vehicle bases. As the interlocking device, a relay interlocking device that configures interlocking logic using a relay has been conventionally used, but in recent years, an electronic interlocking device equipped with a computer has been put into practical use. For example, in a program-type electronic interlocking device, interlocking logic is standardized for each functional unit, and different interlocking conditions for each station are given as interlocking data. Since the electronic interlocking device realizes the relay function with an electronic circuit, the device can be greatly reduced in size as compared with the conventional relay interlocking device (see, for example, Patent Document 1).

JP-A-6-321105

However, in the electronic interlocking device of the program system, the interlocking logic is realized by executing the program. Therefore, it is difficult to confirm the processing process of the interlocking logic unless the software technology related to the program is understood. With a conventional relay interlocking device, it was possible to check the processing process of the interlocking logic by simply viewing the operating state of each relay constituting the relay rack with the naked eye. Therefore, the operator of the conventional relay interlocking device cannot handle the program-type electronic interlocking device as it is.

Also, the interlocking data used for the program-type electronic interlocking device is created based on the interlocking diagram. Therefore, the creator of linked data needs to be skilled in both linked charts and linked data description rules. In particular, how to verify the validity of the created linked data is important. These problems are the same when not only when newly creating linked data, but also when modifying linked data as the linkage conditions are changed.

Another problem is the placement of devices related to electronic interlocking. For example, there is known a device in which an input / output relay unit for interfacing with field equipment is integrated with an electronic interlocking device. When this device is used, the input / output relay unit is located at the same location as the electronic interlocking device. As a result, the external cable connecting the input / output relay unit and the field device becomes long, which may increase the construction cost and maintenance cost.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a technique for realizing a new electronic interlocking system capable of flexibly designing the arrangement configuration of each device related to electronic interlocking. It is to be. Another object of the present invention is to provide a new technology that can solve the above-described problems related to electronically linked programs and linked data.

The first invention for solving the above-described problems is
A storage unit for storing connection data; a interlocking logic processing unit configured to include a fail-safe CPU that executes arithmetic processing related to interlocking logic in accordance with the connection data stored in the storage unit; and operating conditions for interlocking operation A vital information interface connected to a vital line for transmitting information related to the above (hereinafter referred to as “vital information”) and a non-vital line for transmitting information other than the vital information (hereinafter referred to as “non-vital information”). An interlocking logic device having an interlocking logic unit having a non-vital information interface to be connected;
An operation panel that connects to the non-vital line and transmits non-vital information to and from the interlocking logic device;
A maintenance monitor that connects to the non-vital line and transmits non-vital information to and from the interlocking logic device;
An electronic terminal device for transmitting vital information to and from the interlocking logic device connected to the vital line, a contact output unit for outputting a drive signal to a relay for operating a field device, and a relay operating state from the relay A contact input unit that inputs the drive signal, the contact output unit outputting the drive signal in accordance with control information included in the vital information received from the interlocking logic device, and the relay operating state that is input to the contact input unit An electronic terminal device including an electronic terminal unit, and a processing unit configured to include a fail-safe CPU that executes the following information included in the vital information and transmitted to the interlocking logic device;
Is an electronic interlocking system.

According to the first aspect of the present invention, an electronic interlocking system includes an interlocking logic device that executes arithmetic processing related to interlocking logic in accordance with connection data, an operation panel, a maintenance monitor, and an electronic device that controls field devices via a relay unit. Each device with the terminal device is configured to be connected by a vital line or a non-vital line that is a line suitable for the function of the device. In other words, since the interlocking logic device and the electronic terminal device are separate devices, for example, the interlocking logic device is disposed in the handling place, and the electronic terminal device is disposed in the vicinity of the field equipment. It is possible to flexibly design the arrangement of each device constituting the electronic interlocking system according to the scale and the like.

As a second invention, the electronic interlocking system of the first invention,
An operation input unit for operation input of a logical expression in which the interlocking logic executed by the interlocking logic processing unit is represented by relay connection logic, and a connection diagram for converting the logical expression input to the operation input unit into a relay connection diagram A connection data creation device comprising: a conversion unit; a display control unit that controls display of the relay connection diagram; and a data conversion unit that converts the logical expression input to the operation input unit into the connection data;
You may comprise the electronic interlocking | linkage system further equipped with.

According to the second invention, the connection data used for the interlocking logic executed by the interlocking logic processing unit can be generated by the connection data generating device. According to the connection data creation device of the present invention, when a logical expression in which the interlocking logic is represented by relay connection logic is input, the input logical expression is converted into connection data, and is also converted into a relay connection diagram and displayed. It becomes. The relay connection diagram is a diagram familiar to engineers and the like related to conventional relay interlocking and is relatively easy to understand. Therefore, it is possible to easily confirm the validity of whether or not the input logical expression is correctly input to the apparatus and interpreted as correct logical data by the apparatus.

As a third invention, the electronic interlocking system of the second invention,
The connection diagram conversion unit determines a circuit configuration of the relay connection diagram based on an operator used in the logical expression, and uses a relay symbol notation that conforms to a notation rule of a railway operator operating the electronic interlocking system. Having the function of creating the relay connection diagram,
An electronic interlocking system may be configured.

According to the third aspect of the present invention, the connection data creation device determines the circuit configuration of the relay connection diagram based on the operator used in the logical expression and conforms to the notation rules of the railway operator who operates the electronic interlocking system. A relay connection diagram can be created using the symbol notation of the relay. Thereby, it is possible to display a relay connection diagram based on a notation rule unique to a railway company.

As a fourth invention, the electronic interlocking system of the second or third invention,
The connection data creation device includes:
Means for writing the connection data converted by the data converter to a recording medium;
Further comprising
The interlocking logic unit is
A recording medium interface for performing control to read out the connection data from the recording medium and store it in the storage unit;
Further comprising
An electronic interlocking system may be configured.

According to the fourth aspect of the invention, the connection data creation device can write the connection data obtained by converting the input logical expression to the recording medium, and the interlocking logic device reads the connection data from the recording medium and stores the storage data. Can be memorized. Thereby, the interlocking logic device can store the connection data created by the connection data creation device via the recording medium in the storage unit, and perform arithmetic processing related to the interlocking logic according to the connection data created by the connection data creation device. Can be executed.

As a fifth invention, the electronic interlocking system of the fourth invention,
The recording medium interface further performs control to write the connection data stored in the storage unit to the recording medium,
The connection data creation device includes:
Means for reading the connection data from the recording medium;
Further comprising
The connection diagram conversion unit further has a function of converting the connection data into the relay connection diagram.
An electronic interlocking system may be configured.

According to the fifth aspect of the invention, the electronic interlocking device can write the connection data stored in the storage unit to the recording medium, and the connection data creation device reads the connection data from the recording medium and reads the read connection data. It can be converted into a relay diagram and displayed. Thereby, the connection data stored in the electronic interlocking device can be visually recognized as a relay connection diagram by the connection data creation device.

A sixth invention is the electronic interlocking system according to any one of the first to fifth inventions,
The interlocking logic processing unit executes arithmetic processing related to the interlocking logic at a predetermined interlocking process cycle,
The non-vital information interface includes the relay operation state related to the interlock logic in the interlock processing cycle, and transmits the non-vital line including the non-vital information,
The maintenance monitor performs a control for displaying the interlocking logic executed by the interlocking logic processing unit in a relay connection diagram, and a control for displaying the relay operation state included in the non-vital information on the relay connection diagram.
An electronic interlocking system may be configured.

According to the sixth aspect of the invention, based on the non-vital information transmitted from the interlocking logic device, in the maintenance monitor, the relay operation state is displayed on the relay connection diagram showing the interlocking logic executed by the interlocking logic processing unit. Can do. Particularly, since the non-vital information is transmitted in the interlock processing cycle in which the interlock logic device executes the arithmetic processing related to the interlock logic, the relay operation state is updated and displayed in this interlock processing cycle. As a result, it is possible to check the processing process of the interlocking logic in the maintenance monitor.

As a seventh invention, there is provided an electronic interlocking system according to any one of the first to sixth inventions,
The maintenance monitor performs control to display the device when a failure occurs in the device constituting the electronic interlocking system.
The described electronic interlocking system may be configured.

According to the seventh aspect of the invention, the device of the electronic interlocking system in which the failure has occurred can be displayed on the maintenance monitor. Thereby, in the maintenance monitor, it becomes possible to quickly know a failure that has occurred in the devices constituting the electronic interlocking system.

The block diagram of an electronic interlocking system. An arrangement example of an electronic interlocking system. An arrangement example of an electronic interlocking system. An arrangement example of an electronic interlocking system. The function block diagram of a connection data production apparatus. An example of a relay connection diagram. An example of a connection data comparison result screen. The flowchart of a connection data creation process. Display example of relay connection diagram. Display example of relay operation status. Display example of equipment failure. Display example of equipment failure.

[System configuration]
FIG. 1 is a configuration diagram of an electronic interlocking system 1 of the present embodiment. The electronic interlocking system 1 includes an interlocking logic device 10, one or a plurality of electronic terminal devices 30, a relay unit 40 corresponding to each electronic terminal device 30, an operation panel 52, a maintenance monitor 54, and a connection data creation device 80. And comprising. The interlocking logic device 10 and each electronic terminal device 30 are connected via an electronic terminal line 3 that is a vital line, and the interlocking logic device 10, the operation panel 52, and the maintenance monitor 54 are general-purpose LANs that are non-vital lines. (Local Area Network) Connected via a line 5. The vital line is a line for transmitting vital information, which is information related to the operating conditions of the interlocking operation, and is configured to have an optical cable, for example. The non-vital line is a line for transmitting non-vital information that is information other than vital information.

The interlocking logic device 10 includes an interlocking logic processing unit 14, an electronic terminal interface 16, another device interface 18, a signal LAN interface 20, an external memory interface 22, and a storage unit 24. Configured for heavy systems. In addition, it is good not only as a double system but as a single system, and it is good also as a multiple system more than a triple system.

The electronic terminal interface 16 is a vital information interface connected to the electronic terminal line 3 which is a vital line, and transmits / receives vital information to / from each electronic terminal device 30 via the electronic terminal line 3. The other device interface 18 is a non-vital information interface connected to the general-purpose LAN line 5 that is a non-vital line, and the operation panel 52 connected to the hub 50 constituting the duplex system and maintenance via the general-purpose LAN line 5. The monitor 54 transmits / receives non-vital information. The signal LAN interface 20 is connected to the signal LAN line 7 which is a vital line, and transmits / receives vital information to / from other interlocking logic devices 10 and signal security devices via the signal LAN line 7.

The external memory interface 22 is a recording medium interface that writes and reads data to and from the external memory 70 that is a recording medium. As the external memory 70, for example, a USB (Universal Serial Bus) flash drive, a card-type IC (Integrated Circuit) memory, or the like can be used.

The interlocking logic processing unit 14 has a fail-safe CPU (Central Processing Unit). Based on the vital information from the electronic terminal device 30 and the non-vital information from the operation panel 52, the interlocking logic processing unit 14 performs arithmetic processing related to the interlocking logic according to the connection data stored in the storage unit 24 in a predetermined interlocking processing cycle. Run with. Then, vital information based on the execution result is output to the electronic terminal line 3 and non-vital information is output to the general-purpose LAN line 5.

The storage unit 24 includes a hard disk, a memory, and the like. The storage unit 24 stores programs and data necessary for the interlocking logic unit 12 to execute arithmetic processing related to the interlocking logic, vital information acquired via the electronic terminal line 3 and the signal LAN line 7, and the general-purpose LAN line 5. The non-vital information acquired via the connection data and the connection data read from the external memory 70 are stored.

The operation panel 52 is a computer device having a processing unit, a storage unit, an operation unit, a display unit, a communication unit, and the like, and transmits / receives non-vital information to / from the interlocking logic device 10 so that the operator can control the interlocking logic. It is used as a man-machine interface for inputting commands related to execution, displaying diagrams related to interlocking logic such as wiring diagrams, and text information.

The maintenance monitor 54 is a computer device having a processing unit, a storage unit, an operation unit, a display unit, a communication unit, and the like, and transmits / receives non-vital information to / from the interlocking logic device 10 to check operation of the interlocking logic. It is used for maintenance work such as failure monitoring of each device.

The electronic terminal device 30 is configured to have an electronic terminal unit 32 having a processing unit 34, a contact output unit 36, and a contact input unit 38 in a double system. In FIG. 1, two electronic terminal devices 30 are shown, but three or more may be used. Further, not limited to a double system, a single system may be used, or a multi-system more than a triple system may be used.

The processing unit 34 has a fail-safe CPU. The processing unit 34 controls the field device via the relay unit 40 that controls an interface with the field device such as a switch, a traffic light, and a track circuit, and inputs an operation state of the field device from the relay unit 40. That is, based on the control signal for the relay unit 40 included in the vital information from the interlocking logic device 10, the drive signal is output to the contact output unit 36, and the relay unit 40 is based on the contact input from the contact input unit 38. The vital information including the operation state is output to the interlocking logic device 10.

The contact output unit 36 drives the output relay 42 included in the relay unit 40 in accordance with the drive signal from the processing unit 34. The contact input unit 38 inputs the contact open / close state of the input relay 44 included in the relay unit 40 to the processing unit 34.

The connection data creation device 80 creates connection data used for the interlocking logic executed by the interlocking logic device 10. In the present embodiment, the connection data creation device 80 is disposed in an independent manner from other devices and devices in terms of electrical communication. The created connection data is recorded in the external memory 70, read by the external memory interface 22 of the interlocking logic device 10, and stored in the storage unit 24 of the interlocking logic device 10. Conversely, the external memory interface 22 of the interlock logic device 10 writes the connection data stored in the storage unit 24 to the external memory 70, and the connection data creation device 80 reads the connection data written in the external memory 70. You can also.

[Example]
Since the electronic interlocking system 1 of the present embodiment is configured as a separate device in which the interlocking logic device 10 and the electronic terminal device 30 are separated, the structure of the station or the like is arranged such that each device is distributed. Accordingly, a highly flexible arrangement is possible. A specific arrangement of the electronic interlocking system 1 will be described.

FIG. 2 is an example in which one electronic interlocking system 1 is arranged at one station. FIG. 2 shows an example in which the electronic interlocking system 1 including one interlocking logic device 10 and the electronic terminal device 30 is disposed at each of two stations (A station and B station). The interlocking logic device 10 arranged at each station executes arithmetic processing related to interlocking logic for the on-site terminal of the station. As the location of each device in the station, the interlocking logic device 10 and the electronic terminal device 30 may be centrally placed in the equipment room, or the interlocking logic device 10 is placed in the equipment room, and the electronic terminal device 30 is It is good also as arrange | positioning distributedly, such as arrange | positioning to an instrument box.

FIG. 3 shows an example in which one electronic interlocking system 1 is arranged at a plurality of stations. FIG. 3 shows an example in which the electronic interlocking system 1 including one interlocking logic device 10 and three electronic terminal devices 30 is arranged at three stations (A station, B station, and C station). That is, the electronic terminal device 30 is arranged at each of a plurality of stations, and the interlocking logic device 10 is arranged at one of the plurality of stations or at another place. The interlocking logic device 10 executes interlocking logic using a plurality of stations to be controlled by the electronic interlocking system 1 as one large station, and controls field devices via the electronic terminal device 30 arranged at the corresponding station. As described above, for a single track with few on-site equipment in each station, it is preferable to arrange one electronic interlocking system 1 at a plurality of stations and control the plurality of stations centrally.

FIG. 4 shows an example in which a plurality of electronic interlocking systems 1 are arranged at one station. FIG. 4 shows an example in which two electronic interlocking systems 1 each including one interlocking logic device 10 and an electronic terminal device 30 are arranged at one station (A station). The interlocking logic devices 10 are connected to each other via a signal LAN line 7. Then, the station premises is divided into two areas, for example, an upward direction and a downward direction, and the two interlocking logic devices 10 send and receive necessary data to each other, while one interlocking logic device 10 is a field device in one area. The other link logic device 10 executes the link logic for the field device in the other area. In the case of a large-scale station, since there are a large number of field devices in the station, it is preferable to arrange a plurality of electronic interlocking systems 1 at one station in this way.

[Connection data creation device]
FIG. 5 is a functional configuration diagram of the connection data creation device 80. The connection data creation device 80 is a computer device that includes an operation input unit 102, a display unit 104, a processing unit 200, and a storage unit 300.

The operation input unit 102 is realized by, for example, an input device such as a keyboard, a mouse, a touch panel, and various switches, and outputs an operation signal corresponding to the performed operation to the processing unit 200. The operation input unit 102 is used, for example, for an operator to input a logical expression in which the interlocking logic executed by the interlocking logic processing unit 14 is represented by relay connection logic.

The display unit 104 is realized by, for example, a display device such as a liquid crystal display or an organic EL display, or a printing device such as a printer. The display unit 104 displays a screen according to display data from the processing unit 200 or a print output according to the print data. I do. The display unit 104 is used, for example, to display a relay connection diagram obtained by converting a logical expression.

FIG. 6 is a diagram illustrating an example of a relay connection diagram and a logical expression representing the relay connection diagram. The relay connection diagram is a diagram showing the electrical connection of the relay and the relay contact. FIG. 6 shows a relay connection diagram in which the relay 10R is configured (upward) if the contact of the relay 1R is raised and the contact of the relay 2R is raised or the contact of the relay 3R is dropped. Yes. A logical expression representing this relay connection diagram is composed of a relay name and an operator. In the example of FIG. 6, “1R”, “2R”, “3R”, and “10R” are relay names, and “*”, “+”, “/”, and “=” are logical products, logicals, respectively. It is an operator that represents an operation instruction when a sum, negation, or condition is established. The operator of the operation instruction “=” when the condition is satisfied means that the operation on the right side is performed when the logical condition on the left side of the operator is satisfied.

The processing unit 200 is realized by an arithmetic device or arithmetic circuit such as a CPU or FPGA (Field Programmable Gate Array), and is connected based on programs and data stored in the storage unit 300, operation data from the operation input unit 102, and the like. The entire control of the data creation device 80 is performed. The processing unit 200 includes a connection data conversion unit 202, a connection diagram conversion unit 204, a connection data comparison unit, a display control unit 208, and an external memory input / output control unit 210 as functional units.

The connection data conversion unit 202 converts the logical expression input from the operation input unit 102 into connection data that is data in a format that can be processed by the interlocking logic unit 12. At this time, if there is a rule violation in the input logical expression, for example, the relay name is continuous or the operators “+” and “=” are continuous, a predetermined error display is displayed on the display unit 104. Let

The connection diagram conversion unit 204 converts the logical expression input from the operation input unit 102 into a relay connection diagram. Specifically, the relay name and the operator constituting the logical expression are determined with reference to the relay name DB 304 and the operator DB 306. Next, referring to the symbol notation DB 308, each relay and relay contact is indicated using the corresponding symbol notation, and the determined relay name is added to the symbol notation, and the relay and relay contact are connected according to the determined logical expression. Create a relay connection diagram.

The relay name DB 304 is a database of all relay names used in the interlocking logic, and is input and created in advance by an operator. The operator DB 306 is a database of all operators used in logical expressions. The symbol notation DB 308 is a database in which symbol notation is associated with each type of relay and relay contact. This symbol notation DB 308 is prepared in accordance with the notation rules of railway operators. Since the operator can use the symbol notation according to the notation rules of his railway operator, it is easy to understand.

Further, the connection diagram conversion unit 204 converts the connection data read from the external memory by the external memory input / output control unit 210 into a connection diagram. That is, a connection diagram is similarly created for the logical expression represented by the connection data.

The connection data comparison unit 206 compares the two connection data. For example, the connection data newly converted by the connection data conversion unit 202 (hereinafter referred to as “new connection data”) and the connection data read from the external memory 70 by the external memory input / output control unit 210 (hereinafter referred to as “old connection data”). Data ”) and a comparison result screen showing the comparison result on the relay connection diagram is displayed on the display unit 104.

FIG. 7 is an example of a connection data comparison result screen. In the comparison result screen, the comparison result of the two connection data is displayed by showing the difference from the old connection data on the relay connection diagram of the new connection data. Specifically, the relay connection diagram of the new connection data is represented by a solid line, and the relays and relay contacts that have been deleted (that is, the old connection data but not the new connection data) are displayed by dotted lines. In addition, comments indicating additions, deletions, or changes are added to the corresponding relays and relay contacts. FIG. 7 shows that the new connection data is connection data in which the relay contact BR is deleted, the relay contact DR is changed to the relay contact FR, and the relay contact GR is added to the old connection data. . As another example of the comparison result screen, a mismatched connection between the new connection diagram and the old connection diagram may be extracted and displayed in two stages at the top and bottom, and the difference portion may be displayed in red.

The display control unit 208 controls the display unit 104 to display the relay connection diagram converted by the connection diagram conversion unit 204.

The external memory input / output control unit 210 writes to the external memory 70 such as writing the connection data converted by the connection data conversion unit 202 to the external memory 70 or reading the connection data stored in the external memory 70, and Control reading.

The storage unit 300 is realized by a storage device such as an IC memory such as a ROM or a RAM or a hard disk, and stores a system program and data for the processing unit 200 to control the connection data creation device 80 in an integrated manner. , Which is used as a work area of the processing unit 200, and temporarily stores calculation results executed by the processing unit 200, operation data from the operation input unit 102, and the like. The storage unit 300 stores a connection data creation program 302, a relay name DB 304, an operator DB 306, and a symbol notation DB 308. The connection data creation program 302 is a program for realizing the connection data creation processing (see FIG. 8), and the processing unit 200 reads and executes the connection data creation program 302, whereby the connection data conversion unit 202, the connection data It functions as a diagram conversion unit 204, connection data comparison unit 206, display control unit 208, and external memory input / output control unit 210.

[Connection data creation process]
FIG. 8 is a flowchart for explaining the flow of connection data creation processing. This process is realized by the processing unit 200 reading and executing the connection data creation program 302.

First, a logical expression is input by the operator via the operation input unit 102 (step S1). Then, the connection data conversion unit 202 converts the input logical expression into a relay connection diagram, and then the display control unit 208 causes the display unit 104 to display the converted connection diagram (step S3). The operator can check whether the logical expression has been correctly input by looking at the relay connection diagram displayed on the display unit 104. The operator inputs “OK” from the operation input unit 102 if the input logical expression is correct, and “NG” if it is incorrect. If “NG” is input (step S5: NO), the process returns to step S1, and the operator inputs the logical expression again.

If “OK” is input (step S5: YES), the connection data conversion unit 202 converts the input logical expression into connection data (step S7). Subsequently, the connection data conversion unit 202 converts the converted connection data into a connection diagram, and then the display control unit 208 causes the display unit 104 to display the converted connection diagram (step S9). The operator can check whether the input logical expression is correctly converted into connection data by looking at the relay connection diagram displayed on the display unit 104. Then, the operator inputs “OK” from the operation input unit 102 when confirming that the conversion has been correctly performed, and “NG” when the conversion is incorrect. If “NG” is input (step S11: NO), the process returns to step S1 and the operator inputs a logical expression again.

For the operator, when a logical expression in which the interlocking logic is expressed by relay connection logic is input, the input logical expression is converted into connection data and also converted into a relay connection diagram and displayed. The relay connection diagram is easy to understand because the symbol notation is in accordance with the notation rules of the operator's own railway operator. Therefore, it is possible to easily confirm the validity of whether or not the input logical expression is correctly input to the apparatus and interpreted as correct logical data by the apparatus.

If “OK” is input (step S11: YES), then, for example, based on an operation instruction from the operation input unit 102, the connection data is changed by changing the interlocking condition, for example, in the external memory 70. On the other hand, it is determined whether or not to rewrite the connection data (update storage).

If the connection data is rewritten (step S13: YES), the external memory input / output control unit 210 reads the connection data from the external memory 70 (step S15). Next, the connection data comparison unit 206 compares the converted connection data (new connection data) with the read connection data (old connection data) (step S17), and displays a comparison result screen showing the comparison result. It is displayed on the display unit 104 (step S19). By viewing the comparison result screen displayed on the display unit 104, the operator visually recognizes the difference between the relay connection diagram of the logical expression input by the operator and the relay connection diagram of the connection data stored in the external memory 70. Can be confirmed. Then, the operator inputs “OK” if the connection data is to be rewritten to the external memory 70, and inputs “NG” if not.

If “NG” is input (step S21: NO), the process returns to step S1, and the operator inputs the logical expression again. If “OK” is input (step S21: YES), the external memory input / output control unit 210 updates and stores the connection data obtained by converting the logical expression in the external memory 70 (step S23).

If the connection data is not rewritten and only writing is performed (step S13: NO), the external memory input / output control unit 210 stores the connection data obtained by converting the logical expression in the external memory 70 (step S23). When the above processing is performed, the connection data creation processing ends.

[Display maintenance monitor]
The maintenance monitor 54 can display (A) relay connection diagram, (B) relay operating state, and (C) equipment failure.

(A) Relay connection diagram FIG. 9 is a display example of a relay connection diagram. The relay connection diagram is displayed based on the connection data read from the external memory 70. The operator can view the connection data used by the interlock logic unit 12 for arithmetic processing related to the interlock logic in the form of a relay connection diagram.

(B) Relay Operating State FIG. 10 is a display example of the relay operating state. The operation state of the relay is displayed on a relay connection diagram shown in FIG. 9 based on vital information transmitted and received between the interlocking logic device 10 and the electronic terminal device 30. FIG. 10A shows a case where the relay contacts BR, CR and ER are configured, but the relay contacts AR and DR are not configured and the condition is not satisfied. FIG. 10B shows a case where all of the relay contacts AR, BR, CR, DR, and ER are configured and the condition is satisfied.

The operation state of the relay is displayed with its display form being changed according to the configuration state and energization state of each of the relay contact and the relay included in the relay connection diagram. Specifically, the relay contact is displayed as a closed switch when configured, and is displayed as an open switch when not configured. The relays are displayed in different colors depending on the energized state, for example, green when energized and red when de-energized.

(C) Device Failure FIG. 11 is a display example of device failure. The failure of the device is displayed based on vital information transmitted / received between the interlocking logic device 10 and the electronic terminal device 30. FIG. 11 is a display example of the electronic interlocking system 1 as a whole, icons representing each device constituting the electronic interlocking system 1 are displayed, and whether or not there is a failure is displayed for each device. FIG. FIG. 11B is a display example when a failure has occurred in any of the devices.

For a device in which a failure has occurred, for example, the device is highlighted in red and a predetermined warning sound is output to warn that a failure has occurred. Then, when the operator selects a device icon displayed that a failure has occurred, detailed failure information of the device is displayed as shown in FIG.

FIG. 12 is a display example when a failure occurs in the electronic terminal rack among the devices constituting the electronic interlocking system. The card mounted on the electronic terminal rack is displayed together with its name, and the card in which the failure has occurred is highlighted in red, for example.

[Function and effect]
Thus, according to the electronic interlocking system 1 of this embodiment, since the interlocking logic device 10 and the electronic terminal device 30 are provided as separate devices, for example, the interlocking logic device 10 is arranged at a handling place. The electronic terminal device 30 can be flexibly designed in accordance with the scale of the station, etc., so that the arrangement of each device constituting the electronic interlocking system can be designed flexibly.

Also, the connection data used for the interlocking logic executed by the interlocking logic processing unit can be generated by the connection data generating device 80. In the connection data creation device 80, when a logical expression in which the interlocking logic is represented by relay connection logic is input, the input logical expression is converted into a relay connection diagram and displayed, so it is easy to check whether the logical expression has been input correctly. it can. The relay connection diagram is created with reference to the symbol notation DB 308 using the symbol notation of the relay that conforms to the notation rules of the railway operator who operates the electronic interlocking system 1. Further, the connection data creation device 80 can convert the input logical expression into connection data and write it to the external memory 70 that is a recording medium. The interlocking logic device 10 can execute arithmetic processing related to interlocking logic in accordance with the connection data read from the external memory 70, that is, the connection data generated by the connection data generation device 80.

Further, since the maintenance monitor 54 can update and display the relay operation state in the interlock processing cycle for executing the arithmetic processing related to the interlock logic on the relay connection diagram representing the interlock logic executed by the interlock logic device 10. The process of interlocking logic can be confirmed. In addition, since the maintenance monitor 54 can display the device of the electronic interlocking system 1 in which the failure has occurred, the failure that has occurred in the device can be quickly known.

It should be noted that embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can of course be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Electronic interlocking | linkage system 3 Electronic terminal line, 5 General-purpose LAN line, 7 Signal LAN line 10 Interlocking logic device 12 Interlocking logic part 14 Interlocking logic processing part 16 Electronic terminal interface, 18 Other apparatus interface 20 Signal LAN interface, 22 External memory interface 24 Storage unit 30 Electronic terminal device 32 Electronic terminal unit 34 Processing unit, 36 Contact output unit, 38 Contact input unit 40 Relay unit 42 Output relay, 44 Input relay 50 Hub (HUB), 52 Operation panel, 54 Maintenance monitor 70 External memory 80 Connection data creation device 102 Operation input unit, 104 Display unit 200 Processing unit 202 Connection data conversion unit 204 Connection diagram conversion unit 206 Connection data comparison unit 208 Display control unit 210 External memory input / output control unit 300 Storage unit 302 Connection data Data creation program 304 Relay name DB
306 Operator DB
308 Symbol Notation DB

Claims

A storage unit for storing connection data; a interlocking logic processing unit configured to include a fail-safe CPU that executes arithmetic processing related to interlocking logic in accordance with the connection data stored in the storage unit; and operating conditions for interlocking operation A vital information interface connected to a vital line for transmitting information related to the above (hereinafter referred to as “vital information”) and a non-vital line for transmitting information other than the vital information (hereinafter referred to as “non-vital information”). An interlocking logic device having an interlocking logic unit having a non-vital information interface to be connected;
An operation panel that connects to the non-vital line and transmits non-vital information to and from the interlocking logic device;
A maintenance monitor that connects to the non-vital line and transmits non-vital information to and from the interlocking logic device;
An electronic terminal device for transmitting vital information to and from the interlocking logic device connected to the vital line, a contact output unit for outputting a drive signal to a relay for operating a field device, and a relay operating state from the relay A contact input unit that inputs the drive signal, the contact output unit outputting the drive signal in accordance with control information included in the vital information received from the interlocking logic device, and the relay operating state that is input to the contact input unit An electronic terminal device including an electronic terminal unit, and a processing unit configured to include a fail-safe CPU that executes the following information included in the vital information and transmitted to the interlocking logic device;
Electronic interlocking system equipped with.
An operation input unit for operation input of a logical expression in which the interlocking logic executed by the interlocking logic processing unit is represented by relay connection logic, and a connection diagram for converting the logical expression input to the operation input unit into a relay connection diagram A connection data creation device comprising: a conversion unit; a display control unit that controls display of the relay connection diagram; and a data conversion unit that converts the logical expression input to the operation input unit into the connection data;
The electronic interlocking system according to claim 1, further comprising:
The connection diagram conversion unit determines a circuit configuration of the relay connection diagram based on an operator used in the logical expression, and uses a relay symbol notation that conforms to a notation rule of a railway operator operating the electronic interlocking system. Having the function of creating the relay connection diagram,
The electronic interlocking system according to claim 2.
The connection data creation device includes:
Means for writing the connection data converted by the data converter to a recording medium;
Further comprising
The interlocking logic unit is
A recording medium interface for performing control to read out the connection data from the recording medium and store it in the storage unit;
Further comprising
The electronic interlocking system according to claim 2 or 3.
The recording medium interface further performs control to write the connection data stored in the storage unit to the recording medium,
The connection data creation device includes:
Means for reading the connection data from the recording medium;
Further comprising
The connection diagram conversion unit further has a function of converting the connection data into the relay connection diagram.
The electronic interlocking system according to claim 4.
The interlocking logic processing unit executes arithmetic processing related to the interlocking logic at a predetermined interlocking process cycle,
The non-vital information interface includes the relay operation state related to the interlock logic in the interlock processing cycle, and transmits the non-vital line including the non-vital information,
The maintenance monitor performs a control for displaying the interlocking logic executed by the interlocking logic processing unit in a relay connection diagram, and a control for displaying the relay operation state included in the non-vital information on the relay connection diagram.
The electronic interlocking system according to any one of claims 1 to 5.
The maintenance monitor performs control to display the device when a failure occurs in the device constituting the electronic interlocking system.
The electronic interlocking system according to any one of claims 1 to 6.