JPH0228057A - Electronic interlocking device - Google Patents

Abstract

PURPOSE:To enable manufacture and maintenance to be attained of a device only by a relay interlocking process by reading a data, created from a wire connection diagram, controllably constituting relay interlocking thus eliminating the necessity for performing a software process, in case of the device controlling operations in a station or the like performing the relay interlocking. CONSTITUTION:An electronic interlocking device 10 controls operations in a station or the like performing relay interlocking. Here an address table 23 and an arithmetic code table 24 of an output object 22 and an input object 21 in an operation control area are stored in memory in an initial memory means 11. While a logical expression, showing a logical relation between the output object 22 and the input object 21, is possessed as the data in an input medium 14. Further a memory area, corresponding to the output object 22 and the input object 21, is provided in an input/output memory means 13 through an input/output means 15. A data of the input medium 14 is logically decided by a decision means 12 being based on data of the initial memory means 11 and the input/output memory means 13, and a result of the decision means is stored in a predetermined address of the memory area.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an electronic interlocking device for controlling operation at stations, stops, depots, yards, etc., which are interlocked with relays.

``Prior Art'' Relay interlocking control, which used to be performed using a large number of relays, has recently been replaced by an electronic interlocking device that uses a computer to perform the relay interlocking control.

For electronic interlocking devices, engineers with knowledge of traditional relay interlocking devices create control logic based on the arrangement of output and input objects such as traffic lights and switches in the operation control area, and then develop software technology based on this. Typically, a person builds the software system and installs it into the electronic interlocking device.

``Problem to be solved by the invention'' However, with such conventional technology, a relay interlocking engineer and a software engineer are required each time an interlocking system is constructed, which increases the number of man-hours. There was a problem that many engineers who could understand the wiring diagram of the relay interlocking device well could not complete the interlocking system, which caused inconvenience and the inability to quickly respond to emergencies. .

The present invention has been made by focusing on such conventional problems, and aims to provide an electronic interlocking device that can be easily manufactured, inspected, and maintained even by engineers who are only familiar with relay interlocking. The purpose is

"Means for Solving the Problems" What is the gist of the present invention to achieve these objects?

In an electronic interlocking device that controls operation, an initial storage means for storing an address table of output objects and input objects of the operation control area and an operation code table in which logical operators are encoded; An input medium that holds logical expressions expressing logical relationships between objects using addresses and logical operators as data to be made into the address table and operation code table, and storage areas corresponding to the output objects and input objects. an input/output storage means having an input/output storage means; and the data on the input medium is interpreted as a logical relationship according to an address table and a code table stored in the initial storage means, and the data is logically determined based on the content value of a predetermined address of the input/output storage means. The present invention resides in an electronic interlocking device comprising: determination means for storing a result at a predetermined address in a storage area of said input/output storage means; and input/output means for inputting from said input/output storage means to said output target and input target.

"Operation" Address tables for output targets and input targets for the operation control area are set in advance, and the initial storage means stores in advance this address table and an operation code table in which logical operators are coded.

To set the control conditions of the electronic interlocking device, the addresses of the output target and input target of the relevant operation control area are expressed in a logical formula as a logical relationship, and this logical formula is converted into data according to the address table and operation code table. It is held in the input medium.

Information to be inputted is stored in a predetermined storage area of the input/output storage means and sent to the determination means.

The judgment means regards the data on the input medium as a logical relationship according to the address table and code table stored in the initial storage means, makes a logical judgment based on the content value of a predetermined address of the input/output storage means, and stores the result in the input/output storage. It is saved at a predetermined address in the storage area of the means.

The result of the logical judgment stored in the input/output storage means is transmitted to the output object by the input/output means, and the output object operates.

When the state of the input object changes due to this operation, the input/output means transmits it and the input/output storage means stores it.

According to this new condition, make a logical judgment as before! Continuously linked.

When operating conditions change or equipment changes, the data on the input medium is rewritten.

"Example" Hereinafter, one embodiment of the present invention will be described based on the drawings.

Electronic! The operating device 10 has the configuration shown in FIG. 1, and is used to control operations at stations, two depots, yards, etc., which are interlocked with relays.

The operation control area is shown, for example, in a relay interlocking wiring diagram as shown in FIG.

First, the operation control area will be described. The operation control area to be controlled includes relays A to E as input objects and signals Jj&F as output objects.

The logical relationship between relays A-E and signal vIF is as follows (1
) is shown by the formula.

λA (TVT:VU)AE=F (1) For the sake of clarity, this operation control area shows the logical relationship of only one system, but in reality it is more complex and it is like this. It is a set of things that have many logical relationships.

As can be seen in FIG. 1, the electronic interlocking device 10 is centered around a CPU, and the CPU is provided with an initial storage means 11, a judgment means 12, and an input/output storage means 13. An input/output means 15 is provided to which the medium 14 is connected, and is connected to the input/output storage means 13 to transmit its output to the outside. Furthermore, a control panel 16 is provided which indicates the operating status and gives instructions to the CPU.

An input object 21 and an output object 22 are connected to the CPU via an input/output means 15.

The initial storage means 11 is the output target 2 of the operation control area.
2, an address table 23 for input objects 21, and an operation code table 24 in which logical operators are encoded.

The address table 23 can be determined as appropriate depending on the scale and specifications of the operation control area.

That is, in order to obtain the status of the track circuit elements, switch machines, etc. that are the input objects 21, addresses on the CPU are set for the sensors and relays provided there.

In addition, the address table 23 is a table in which addresses are set to operate the traffic lights and traffic lights that are the output target 22, and the contents are, for example, as follows in 16-bit hexadecimal notation. .

A's address ooi.

Address of B 0011 Address of C 0012 Address of D 0013 Address of E 0014 Address of F 0015 These address values can be made different depending on the scale of the operation control area as mentioned above.
It goes without saying that if the input/output target devices are similar, they may be the same without being different.

The operation code table 24 simply assigns codes to logical operators, and is defined as follows, for example.

Code Operator Fool N0T FOO20R FOO3AND FOFF Equal FFFF Other parentheses etc. are also coded if necessary for the table termination logical operation.

The input medium 14 is a ROM, and holds the addresses of the output object 22 and the input object 21 and logical formulas representing the logical relationships between the objects as data according to an address table 23 and an operation code table 24. .

In order to facilitate processing and increase processing speed, the above (1)
Rewriting the formula results in a first-order input format.

A, NOT, B, NOT, C, NOT
, OR.

D, NOT, OR, AND, E, AN
D=F(2) This formula (2) is as follows: address table 23, operation code table 24
It is possible to simply replace the address and code based on the above, and the contents can be written to the input medium 14 without being aware of the software.

The input/output storage means 13 stores an output target 22 and an input target 2.
It has a storage area corresponding to 1.

In the CPU, the storage area of the initial storage means 11 and the storage area of the input/output storage means 13 may be shared, but the addresses are set so that they are not the same.

The determining means 12 regards the data in the input medium 14 as a logical relationship between the address table 23 and the operation code table 24 stored in the initial storing means 11, and makes a logical judgment based on the content value of a predetermined address in the input/output storing means 13. The result is stored at a predetermined address in the storage area of the input/output storage means 13.

The input/output means 15 transmits the stored contents of the input/output storage means 13 between the output object 22 and the input object 21 to which the contents correspond.

Next, the action will be explained.

The address table 23 and the operation code table 24 of the output object 22 and the input object 21 of the operation control area are set in advance and stored in the initial storage means 11.

When setting the control conditions for the electronic interlocking device IO, the addresses of the output target 22 and input target 21 of the operation control area are expressed in the logical relationship of formula (1), and roughly expressed in formula (2). After conversion, the data is stored in the input medium 14 as a data table as shown below according to the address table 23 and the operation code table 24.

0010 A address FFFF Information on the end input object 21 is stored at a predetermined address in a predetermined storage area of the input/output storage means 13 , and this information is transmitted to the determination means 12 .

The determining means 12 regards the data on the input medium 14 as a logical relationship according to the address table 23 and the code table stored in the initial storage means 11, and the input/output storage means 13
A logical judgment is made based on the content value of a predetermined address of , and the result is stored at a predetermined address of the storage area of the input/output storage means 13.

The operation of the determining means 12 will be explained in detail with reference to the flowchart shown in FIG.

In step 1, the data table of the input medium 14 is read out, and in step 2, it is determined by comparing the contents of the initial storage means 11 whether the read contents are operators or addresses.

If it is not an operator, in step 3, the contents of the address (for example, the address corresponds to the relay name consisting of
The content value of the address corresponding to the relay name set in the address table 23) is placed in the stack.

If it is an operator (AND, OR, NOT), proceed to step 4 to determine whether it is the end data, and in the fifth step, determine whether the read result is equal or not to end the logical expression.
If they are not equal, in step 6, the first content and the next content in the stack are taken out, a logical operation is performed, and the result is put back into the stack (as a result, the content of the stack decreases by one).

After completing the stack operation in step 6, step I
Return to Note that if there is no content in the initial stack in step 6 for the first data, the process returns to step 1 without performing any logical operation.

Repeat this, and if the data read in step 4 is equal, go to step 7 and read the contents remaining on the stack (only 1 digit of data should remain on the stack,
The result is 1 or O) Input/output storage means 1 indicated by the address
Store the results in storage area 3.

If there are other logical expressions, the above steps are repeated and the cycle ends at step 8 when FFFF is read.

Through the above processing, each relay changes to 1 or 0 depending on the input change from the side control panel, etc.

When the series of logical operations is completed, the result of the logical judgment stored in the input/output storage means 13 is transmitted by the input/output means 15 to the output object 22 corresponding to the address of the input/output storage means 13, and the output object 22 is operated. Then, the predetermined processing is completed.

When the state of the input object 21 changes due to this operation, the input/output means 15 transmits the change and the input/output storage means 13 stores it.

According to this new condition, the judgment means 12 makes a logical judgment and operates continuously in the same manner as above.

When operating conditions change or equipment changes, the data on the input medium 14 is rewritten.

In this way, the data on the input medium 14 is processed by the phase-difference type or bus-synchronous computer, which has conventionally been used in the electronic interlocking device 10 as a fail-safe computer, to fully control the relay interlocking device. It can be operated with fail-safe properties and functions.

In the above embodiment, a ROM was used as the input medium, but a disk or the like may be used as the medium, and in order to increase the speed, it may be
It may also be imported into U's internal memory.

"Effects of the Invention" According to the electronic interlocking device of the present invention, the relay interlocking operation can be controlled by creating data from the wiring diagram and reading this data, so the processing program can be run on a general-purpose operating system. If you think of it as equivalent to a system, you can always focus only on the wiring diagram of the relay interlocking device during manufacturing, inspection, and maintenance without having to be aware of the software. It can be put to full use.

The construction of the interlocking system can be done by changing the data, and it is not affected by the system configuration of the device, and by creating and maintaining only the relay wiring diagram, the electronic interlocking device can be constructed in the same way as the conventional relay interlocking device. Can be manufactured and maintained.

[Brief explanation of the drawing]

Each figure shows one embodiment of the present invention, and FIG. 1 is a block diagram of an electronic interlocking device, and FIG. 2 is a wiring diagram of relay interlocking. io...Electronic interlocking device 12...Judgment means 14...Input medium 16...Control WW 21...Input object 23...Address table FIG. 3 is a flowchart of the operation 11... Initial storage means 13...Input/output storage means 15...Input/output means 22...Output target 24...Operation code table

Claims (1)

[Claims] In an electronic interlocking device for controlling operation, an address table of outputs, targets and input targets of an operation control area, and
an initial storage means for storing an operation code table in which logical operators are encoded, and a logical expression expressing a logical relationship between each object by the addresses of the output target and input target and the logical operator, and the address table and the operation An input medium that stores data according to a code table, an input/output storage means having storage areas corresponding to the output target and the input target, and an address table and a code table in which the data of the input medium is stored in the initial storage means. judgment means for determining a logical relationship based on the content value of a predetermined address of the input/output storage means and storing the result at a predetermined address of a storage area of the input/output storage means; An electronic interlocking device comprising an input/output means for inputting the output object and the input object from the means to the output object and the input object.