JPH03220060A - On-site equipment input/output device for electronic interlocking device - Google Patents

Abstract

PURPOSE:To secure the electric insulation and dispersed arrangement of input/output, and facilitate the reduction of the length of the input/output wires, by separating the interlocking logic processing part and the input/output processing part of an electronic interlocking device which is used in the field of railroad signal by an optical fiber cable transmission path. CONSTITUTION:The interlocking logic device 1 and the on-site equipment input/output device 2 of an electronic interlocking device which executes processing by the aid of each microprocessor are connected through an optical fiber cable 31 for control and an optical fiber cable 32 for display. In the processing part 22 of the input/output device 2, the control information or polling information which is outputted from the interlocking logic processing part 11 of the interlocking logic device 1 is inputted, and the control data and the output data are prepared and outputted to the on-site equipment on the basis of the control information, and the display information is outputted into the interlocking logic processing part 11 on the basis of the polling information. In this case, the processing which is common for a variety of devices is carried out through the logic processing, and in the characteristic processing for each device, the calculation processing is designated according to the data on a table.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to field equipment input/output devices for electronic interlocking devices used in the field of railway signaling.

[Prior Art] Conventionally, an electronic interlocking device has an interlocking logic processing section and a field equipment input/output section integrated into one unit, and input/output data at several hundred points between these is exchanged in a byte-parallel time-sharing manner. All of these input/output data are created by logical processing by the interlocking logic processing section. Further, relays are provided in the interface between the field device input/output section and the field device in correspondence with the number of input/output points, and input/output conditions are exchanged by wiring these contacts.

[Problems to be Solved by the Invention] However, in the past, as shown in FIGS. 4 and 5, for example, (1) the interlocking logic processing section and the field device input/output section are integrated, so that the field devices are scattered; The number of connection cables will increase.

(21 Since the input/output section with field equipment is unique for each system, if all input/output data is created using logical processing, logical processing will be constructed for each system, making it impossible to standardize the software.) Since then, the input/output logic specific to the system was performed by contact wiring of input/output relays, which not only increased the size of the input/output section but also required a large amount of wiring work.

[Means for Solving the Problems] In order to solve such problems, the present invention inputs control information or polling information serially outputted from an interlocking logic processing section of an electronic interlocking device via a transmission medium, and Create control data based on luck information.

Creates output data and outputs it to field equipment, creates input data from field equipment, creates 2 display data, and serially outputs display information to the interlocking logic processing unit via a transmission medium based on polling information. It is composed of a processing section, a device number setting section, and an input/output section.The processing section data processing is provided independently for each device type, and the recognition of the device type is performed using the ROM of the processing section.
The number of the own device is recognized by the device type data registered in the 111gl information, and within the same type, the number of the own device is recognized by the device number data input from the device number setting section. Processing that is unique to each device number is performed by logical processing, and the table that describes the reverse Polish formula that encodes the logical operations provided for each device number is selected, and the data in the table is used to instruct the calculation processing. This is what I did.

[Operation] Control information from the interlocking logic processing section of the electronic interlocking device or
After the polling information is output as a serial signal, it is input to the field equipment input/output device via a transmission medium. input is W
In the case of II control information, on-site device output corresponding to the content of the control information is performed based on the type and number of the own device. Further, when the input is polling information, in addition to inputting the state of the field equipment, display information to which the type number of the own device is added is output as a serial electrical signal to the interlocking logic processing section. The display information is input to the interlocking logic processing unit via the transmission medium when the own device is called by polling information.

Embodiment F] In the embodiment, as shown in FIG. 1, the interlocking logic device 1 of the electronic interlocking device and the field equipment input/output device 2, each of which executes processing by a microprocessor configured in a 7-al-safe manner, are connected to a control optical fiber. They are connected by cable 3+-display optical fiber cable 3□. The interlocking logic device 1 includes an interlocking logic processing section 1 and a serial/parallel conversion circuit 1.
2 and electrical/optical conversion circuit 1. It is composed of Further, the field equipment input/output section W2 includes an input/output circuit 21, an input/output processing section 22, a device number setting section 23, and an electrical/optical conversion circuit 24.

Figure 2 shows the processing configuration of the input/output processing unit and data flow, and four on-site devices are shown below (G, YIG, Y2.R).
The actual yMPA will be specifically explained based on FIG. 3, which shows the logic of traffic light input/output in the case of traffic light 5L.

FIG. 3 shows the input/output logic of the four-display traffic light 5L using a relay circuit. Among these, 5LHR16LHYR
, 6LHR are part of the control information transmitted from the interlocking logic device, and 5LDYR, 5L created by these
DR is the upper display of 72 or higher of traffic light 5L (Y tG and G
) and the control information 6L for the traffic light 6L ahead.
HYR and 6LHR are involved. 5LHR, 5LDYR,
G, YIG, Y2. Four states of R are obtained. 5L indicating the current control status of traffic light 5L
HBPR is part of the display information and is transmitted to the interlock logic unit.

Next, FIG. 2 will be explained in correspondence with FIG. 3. Transmission input from the interlocking logic device is transmitted and all control information is registered in the corresponding area of the RAM in the input/output processing unit. If the device type is a traffic light, a control data calculation processing instruction table that describes a reverse Polish formula in which logical operations are coded is generated from the corresponding area of the ROM in the input/output processing unit based on the device number obtained by the device number input process. selected and said RAM
Arithmetic processing is performed on the control information registered in , and control data is created. In Figure 3, 5LHR, 6LHYR,
The circuit in which 5L-DYR and 5L-DR are created from the control information of 6LAIR corresponds to this. The control data is logically processed to create output data for controlling the traffic light.

In Figure 3, from the control data of 5L-HR and 5L-DYR, 5
L-GR.

The circuits in which 5L-Y, GR, 5L-Y2R, and 5L-RR are created correspond to this. The output data is subjected to input/output drive processing and outputted from an input/output port in the input/output processing section to an output circuit composed of a power semiconductor. In FIG. 3, the output circuit of the traffic light 5L to each lamp corresponds to this. Further, the output data is returned from the input/output drive processing, logically processed as input/output data, display data is created, and set in the corresponding area of the RAM in the input processing section. In Figure 3, 5L-GR, 5L-Y, GR, 5LY2R, 5L-R
R to 5L-) The circuit for which the IBPR is created corresponds to this.The above display data describes a reverse Polish formula that encodes the logical operation selected from the corresponding area of the ROM in the input/output processing unit based on the device number. The displayed data is subjected to arithmetic processing using the display data arithmetic processing instruction table, and display information is created.

The display information is transmitted and processed and output as a transmission output to the interlocking logic device when the own device is polled.

In the embodiment, only one traffic light has been described, but the same applies even if there are many traffic lights, and the same method can be applied to other types of field equipment such as switch machines.

[Effects of the Invention] As explained above, the present invention separates the interlocking logic processing section and the input/output processing section of the electronic interlocking device by an optical fiber cable transmission path, thereby achieving electrical isolation and improving input/output processing. Easily dispersed layout and shortened input/output lines.

In addition, processing common to each device type in the input/output processing unit is performed by logical processing, and processing specific to each device number is performed by instructing arithmetic processing using table data, so that only table data can be created for the target system. , and can significantly reduce the amount of wiring required by conventional multiple electromagnetic relays and their contact logic.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the processing configuration of the input/output processing section and data flow, FIG. 3 is a diagram showing the logic of traffic light input/output, and FIG. 4 is a block diagram showing the configuration of a conventional device, and FIG. 5 is a diagram showing a conventional traffic signal input/output circuit. 1...Electronic interlocking device, 2...
... Field equipment input/output device, 3... Optical fiber cable. Figure 3

Claims (1)

[Claims] Control information or polling information that is serially output from the interlocking logic processing section of the electronic interlocking device is input via a transmission medium, and output to the field equipment based on the control information is performed. It consists of a processing section, a device number setting section, and an input/output section that performs input and outputs display information in series to the interlocking logic processing section via a transmission medium based on polling information, and the device type data registered in the ROM of the processing section. The self-device is recognized by the device number data input from the device number setting section, and the device type and device number data in the control information are checked. Processes common to device numbers are performed using logical processing, and each device number is A field equipment input/output device for electronic interlocking equipment, which is characterized in that its unique processing selects a table that describes a reverse Polish formula that encodes logical operations provided for each equipment number, and instructs the calculation processing based on the data in the table. .