JPH0728775U - Electronic interlocking device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an electronic interlocking device that can build an appropriate interlocking control system and can quickly recover even when a failure occurs, and can minimize the effect of the failure on the entire system. A fail safe system 70 is formed by connecting a fail safe processor 10 and an electronic interlocking device 50 requiring the fail safe processing to a fail safe line 30. It has a non-fail safe processor 20 and a non-fail safe system 80 in which an electronic terminal device 60 which may be non-fail safe processing is connected to a non-fail safe line 40. The fail-safe system 70 and the non-fail-safe system 80 are each provided with a data bus 90 that operates in parallel and can transfer data to each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electronic interlocking device, and more particularly to a multiple electronic interlocking device having a plurality of electronic interlocking systems that perform face-safe and non-fail-safe processing.

[0002]

[Prior art]

 In order for a vehicle to operate safely on a track that includes traffic lights and trollers, it is necessary to place a certain order and restrictions on the control and operation of these traffic lights and trollers. There is an electronic interlocking device.

Due to the role of such an electronic interlocking device, operation interruption is not allowed. Therefore, two electronic interlocking devices are conventionally used to allow both systems to operate in parallel. In other words, it is necessary to operate both systems in exactly the same way, normally use one system, and when a failure occurs in that system, normalize its function and return to parallel processing immediately. .. At this time, it is preferable that the operating states of both systems be the same without affecting the operation of the normally operating system.

As a conventional technique of such a dual system, there is one as shown in FIG.

In the electronic interlocking device, the first and second common lines 110 and 120 are connected to one fail-safe processor 100. The first common line 110 is a fail-safe system and is composed of at least one electronic terminal device 130 that performs fail-safe operation. The second common line 120 is a non-fail safe system, and is composed of at least one or more electronic terminal devices 140 that perform non-fail safe operation.

Each of the electronic terminal devices 130 and 140 has a serial input / output unit, obtains control data from the fail-safe processor 100, and sequentially obtains control results of the devices 120 and 130 by a polling operation. It is output to 100.

[0007]

[Problems to be solved by the device]

 However, in such a conventional electronic interlocking device, both the fail-safe system and the non-fail safe system are commonly connected to the fail-safe processor, so that the non-fail-safe electronic device that requires non-fail safe data processing can be used. Unnecessary fail-safe processing was performed for data transfer with the terminal equipment, and the processing capacity of the fail-safe processor was wasted.

The present invention has been made by paying attention to the problems of such conventional techniques. It is possible to construct an appropriate interlocking control system and quickly recover from a failure. The purpose is to provide an electronic interlocking device that can minimize the effect of failure on the entire system.

[0009]

[Means for Solving the Problems]

 The gist of the present invention for achieving such an object is that an electronic terminal device (50) requiring fail-safe processing is connected via a fail-safe line (30), and an electronic device capable of non-fail-safe processing is required. A fail-safe processor (10) and an electronic interlocking device that requires the fail-safe process, in an electronically controlled device in which a terminal device (60) is connected and controlled via a non-fail-safe line (40). A fail-safe system (70) in which a device (50) is connected to a fail-safe line (30), a non-fail-safe processor (20), and an electronic terminal device capable of performing the non-fail-safe processing. (60) has a non-fail safe system (80) connected to the non-fail safe line (40), and is a fail safe system. 70) and performs the respective parallel work with non fail-safe system (80), and consists in an electronic interlocking device, characterized in that those having a data bus (90) capable of mutually transferring data.

[0010]

[Operation] At least one fail-safe electronic terminal device or non-fail-safe electronic terminal device is connected to the processor of the present invention through a fail-safe line or a non-fail-safe line which is a common line, Control is performed by exchanging data with each electronic terminal device.

A fail-safe processor (10) or a non-fail safe processor (20), a fail-safe electronic terminal device (50) is provided via a fail-safe line (30) or a non-fail-safe line (40). ) Or a non-fail safe electronic terminal device (60) and control signals using polling processing and data exchange with the electronic terminal device.

[0012] At least one or more fail-safe electronic terminal devices (50) or non-fail-safe electronic terminal devices (50) individually connected to the fail-safe line (30) or the non-fail-safe line (40), respectively. Reference numeral 60) is, for example, a guide panel, a broadcasting device, a control panel, or the like, which creates orbital operation data and transfers the data according to the request of the processing control unit.

The fail-safe processor (10) and the non-fail-safe processor (20) as processing control units connected to the fail-safe line (30) and the non-fail-safe line (40) respectively perform polling. The fail-safe electronic terminal equipment (50) and the non-fail-safe electronic terminal equipment (60) are controlled by using the operation through the fail-safe line (30) and the non-fail-safe line (40). Transfer operation data.

In the fail-safe system (70), the fail-safe processor (10) is connected to the fail-safe line (30) and performs data processing between the fail-safe electronic terminal devices (50).

In the non-fail safe system (80), the non-fail safe processor (20) is connected to the non-fail safe line (40) as a second processor, and the non-fail safe electronic terminal device (60) is connected. Data processing in.

Data that needs fail-safe processing is processed in the fail-safe system, and data that needs non-fail safe processing is processed in the non-fail-safe system.

The fail-safe system (70) and the non-fail-safe system (80) independently operate in parallel in each processing system. Further, when it becomes necessary to transfer data to each other, predetermined data is exchanged via the data bus (90).

[0018]

【Example】

 FIG. 1 shows a first embodiment of the present invention.

In the electronic interlocking apparatus of this embodiment, an electronic terminal device 50 requiring fail-safe processing is connected via a fail-safe line 30.

The fail-safe processor 70 and the electronic interlocking device 50 that requires the fail-safe processing are connected to the fail-safe line 30 to provide a fail-safe system 70.

It has a non-fail safe processor 20 and a non-fail safe system 80 in which an electronic terminal device 60 which is capable of the non-fail safe processing is connected to a non-fail safe line 40.

The fail-safe system 70 and the non-fail-safe system 80 are each provided with a data bus 90 capable of performing parallel operations and transferring data to each other.

FIG. 2 shows an embodiment of the fail-safe processor according to the present invention.

The fail-safe processor 200 includes an A system bus 240, a B system bus 250, an A system microprocessor unit 360, a B system microprocessor unit 350, a collation unit 370, and an I / O. And a circuit 230.

The A-system microprocessor unit 360 includes at least one microprocessor 210 and a memory unit 220, and is commonly connected to the A-system bus 240.

The matching unit 370 includes a matching circuit 370 and a rectifying circuit 280. The matching circuit 370 is commonly connected to the A system bus 240 and the B system bus 250.

The rectifier circuit 280 is connected to the matching circuit 370.

Next, the operation will be described.

The electronic interlocking apparatus of this embodiment is controlled by connecting an electronic terminal device 60, which may be non-fail safe processing, via a non-fail safe line 40.

The fail-safe system 70 and the non-fail-safe system 80 each operate in parallel. Further, the data bus 90 can transfer data to each other.

The A-system microprocessor unit 360 transfers data via the A-system bus 240. Similarly, the B-system microprocessor unit 350 transfers data via the B-system bus 250.

The A system microprocessor unit 360 transfers and outputs the data to the A system bus 240 based on the synchronous clock.

The matching circuit 370 sequentially serializes the data transferred from the A system microprocessor unit 360 and the B system microprocessor unit 350 via the A system bus 240 and the B system bus 250 based on the synchronous clock. Alternatively, they are compared in parallel, an alternating signal 390 is generated based on the comparison result of the data, and output to the rectifier circuit 280.

The rectifier circuit 280, based on the comparison result (alternating signal 390) of the data generated in the matching circuit 370, when the comparison data match, the data match signal 330. If the comparison data do not match, a data mismatch signal 310 is generated.

[0035]

[Effect of device]

 According to the electronic interlocking device of the present invention, a fail-safe processor is used to control a fail-safe electronic terminal device, and a non-fail safe processor is used to control a non-fail-safe electronic terminal device. Optimal use of the processor can be measured by performing data transfer between the fail-safe processor and the non-fail-safe processor depending on the requirement.

Further, since the fail-safe system and the non-fail-safe system can be separated, the priority of the processing system can be designed in the electronic interlocking device, and the processing system with higher safety can be easily constructed. Become.

[Brief description of drawings]

FIG. 1 is a block diagram of an electronic interlocking device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a fail-safe processor used in this embodiment.

FIG. 3 is a block diagram of an electronic interlocking device showing a conventional example.

[Explanation of symbols]

 10 Fail Safe Processor 20 Non Fail Safe Processor 30 Fail Safe Line 40 Non Fail Safe Line 50 Fail Safe Electronic Terminal Equipment 60 Non Fail Safe Electronic Terminal Equipment 70 Fail Safe System 80 Non Fail Safe System 90 Data Bus 100 Fail-safe processor 110 Fail-safe line 120 Non-fail safe line 130 Fail-safe electronic terminal device 140 Non-fail-safe electronic terminal device 200 Fail-safe processor 210 Microprocessor 220 Memory section 230 I / O circuit 240 A system bus 250 B system bus 260 Collation circuit 280 Rectifier circuit 310 Data mismatch signal 330 Data match signal 350 B system microprocessor unit 360 System microprocessor unit 370 collating unit 390 alternating signal

Claims (1)

[Scope of utility model registration request] 1. An electronic terminal device that requires fail-safe processing is connected via a fail-safe line, and an electronic terminal device that requires non-fail safe processing is connected and controlled via a non-fail-safe line. In an electronic interlocking device, a fail-safe system in which a fail-safe processor and an electronic interlocking device requiring the fail-safe processing are connected to a fail-safe line, and a non-fail-safe processor and the non-fail-safe processing And a non-fail safe system in which the electronic terminal device is connected to a non-fail safe line, and the fail-safe system and the non-fail-safe system respectively operate in parallel, An electronic interlocking device having a data bus capable of transferring.