KR20110023425A - Electronic interlocking apparatus with a structure for according a data - Google Patents

Abstract

PURPOSE: An electronic interlocking apparatus with a structure for tracking data is provided to determine the state of data match by comparing the control data of first and second system CPUs included inside. CONSTITUTION: An electrical interlocking apparatus(300) comprises the first and second CPU modules(302, 304) and the first and second communication units(306, 308). The CPU module compares the state of matching by comparing the data received by the communication. The first and second CPUs implement the serial communication with an external communication module(310) when the received data matches.

Description

ELECTRONIC INTERLOCKING APPARATUS WITH A STRUCTURE FOR ACCORDING A DATA

The present invention relates to an electronic interlocking device having a data tracking structure, and more specifically, includes an integrated CPU storing reference data and error tolerance range data in an electronic interlocking device, and allows errors in case of CPU mismatch between the first and second systems. The present invention relates to an electronic interlocking apparatus having a data following structure in which a CPU having a data value within a range is selected and another CPU follows the data value of the CPU so that train operation can proceed even in the case of a CPU mismatch.

As is well known, in the railway signal control system, an interlocking system is generally installed on the railroad side of the railway to control the interval of the train or control the course, and in particular, to prevent the collision of the train. It is the control device that is finally responsible for the safe operation of the train.

Therefore, the interlock device is a key device to secure the safe operation of the train as a device that operates a signal, a track switch, etc. in accordance with a certain order and rules in order to facilitate smooth train operation in the station.

Since many tracks are concentrated in the station, complicated work of controlling the arrival and departure of the train by the tap-off and switching the line changer and handling the signal according to the direction of the exchange is required. Therefore, if relying solely on the operator's attention for the confirmation of line switchover or signal handling, there is a risk of mishandling and misunderstanding, and the efficiency is also reduced. Therefore, it is called interlocking that a series of operations prepared in order to make a certain order and rules in handling of the line changer and the signal and to avoid the error of the confirmation of the handler operate in a chain relationship.

A device for such interworking is called an interlocker, and the entire device that interlocks with electricity is mechanically called an interlocking device.

In the interlock device, the switch from the existing electrical interlock device to the electronic interlock device is rapidly made. The electronic interlock device electronically implements the fail-safe principle, which has the advantages of low equipment cost, small size, low power consumption, and easy maintenance and troubleshooting. Therefore, in consideration of safety and reliability peculiar to the electric interlock device, the situation is pursuing the electronicization of the interlock device.

Currently, the interlocking devices in use are mechanical interlocking devices, electrical interlocking devices, and electronic interlocking devices. Electric interlocking devices are still mainstream, but recently, due to the development of science and technology, the expansion of electronic interlocking devices is rapidly expanding. The situation is losing.

1 is a block diagram showing the structure of a railway signal control system according to a conventional embodiment, Figure 2 is a block diagram showing a general structure of an electronic interlocking apparatus for performing serial communication according to the conventional embodiment.

Referring to this, the conventional railway signal control system including the electronic interlock device is largely composed of the display control unit 106, the interlocking logic unit 100 in the machine room, and the controller 102.

Looking at, the display control unit 106 displays the state information of each railway station to the operator and transmits various control commands input from the operator to the interlocking logic unit 100 in the machine room.

In addition, the interlocking logic unit 100 in the machine room analyzes various control commands received from the display control unit 106 and transmits a command capable of actual control to the controller, and the controller 102 is transmitted from the interlocking logic unit 100. According to the control command to directly control the signal 104, the train, and the tracks in the field, and serves to report their status to the interlocking logic unit 100.

Currently, the display control unit 106, the interlocking logic unit 100 in the machine room, and the controller 102 are proposed to perform such an operation, and the display control unit 106 and the interlocking logic unit 100 in the machine room are proposed. Serial communication is performed between the communication room and the interlocking logic unit 100 and the controller 102 in the machine room is a form of performing a double ring structure communication.

The device including the interlocking logic unit 100 described above is an electronic interlocking system (EIS) 200.

In more detail, the electronic interlock device 200 may include two CPU modules 202 and 204 and first and second communication units 206 and 208.

The two CPU modules 202 and 204 configured inside the electronic interlock device 200 communicate with each other to compare data received from each other, and when the data coincide with each other, each CPU module uses the first and second communication units 206 and 208. Serial communication with the external communication module 210 is performed. Therefore, the electronic interlock device 200 includes two CPU modules 202 and 204 so that when an abnormality occurs in any one of the two CPU modules 202 and 204, the system can be operated to lower the safety accident rate by stopping the system. Have

In the electronic interlock device 200, the first CPU module 202 and the second CPU module 204 output a control signal, wherein the first CPU module 202 outputs an ON1 signal and the second CPU module 204 receives an ON2 signal. Outputs

The ON1 signal and the ON2 signal output by the first CPU module 202 and the second CPU module 204 are input to the first and second communication units 206 and 208, and the first and second communication units 206 and 208 are input. The first CPU module 202 or the second CPU module 204 activated according to the signal values of the ON1 signal and the ON2 signal enabled enables serial communication with the display control unit 106 (see FIG. 1) and the external communication module 210. It has a configuration to make it.

In this case, when the two CPU modules 202 and 204 configured inside the electronic interlocking device 200 are determined to be inconsistencies in data comparison with each other, inconsistencies may occur due to a very simple reason such as a data filtering error or a bad contact. In addition, although both data at the time of inconsistency are frequently within the error range, when the data inconsistency actually occurs, there is a problem that the train operation cannot be performed because the whole system is stopped.

Therefore, the train operation is delayed until the location and cause of the failure are identified, and thus, there is a problem that the passengers are inconvenienced and the economic loss is very large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described state of the art, and includes an integrated CPU storing reference data and its error tolerance data inside the electronic interlock device, and within the error tolerance range in case of CPU mismatch between the first and second systems. It is an object of the present invention to provide an electronic interlocking device having a data tracking structure that selects one CPU having a data value and allows another CPU to follow the data value of the CPU so that train operation can proceed even when the CPU is inconsistent.

In order to achieve the above object, according to a preferred embodiment of the present invention, the display control unit for displaying the information on each site of the railway to the operator and transmits various control commands input from the operator and the site information received from each railway equipment The electronic interlocking device is configured to be transmitted to the display control unit and operate so that the field devices can be controlled according to a control command transmitted by the display control unit. The control device transmits a control signal to the field device by comparing the data with each other. An electronic interlocking device including first and second CPUs each connected to the first and second CPUs, the first and second communication units connected to an external communication module, respectively, the first and second CPUs respectively connected to the first and second CPUs. In case of data mismatch between the first and second CPUs, one CPU is selected as the reference CPU, and the data of the other CPU is followed by the selected CPU data. An integrated CPU that is further comprising one, two series of follow-up data structure to the CPU even when data inconsistency, characterized in that the train is to be operated electronic interlock is provided.

Preferably, the integrated CPU is provided with an electronic interlocking device having a data following structure, wherein a memory for storing data values of the first and second CPUs and a memory for storing error tolerance data is further connected.

Preferably, the reference CPU may compare the error tolerance data stored in the memory with the data received by each CPU to select a CPU whose received data is within the error tolerance. Is provided.

Preferably, the first and second CPUs are provided with an electronic interlocking device having a data following structure, which performs optical communication through a first optical communication unit.

Preferably, the first and second communication unit is provided with an electronic interlocking device having a data following structure, characterized in that to perform the optical communication through the second optical communication unit.

The electronic interlocking device of the data tracking structure according to the present invention determines whether data is matched by extracting and comparing the control data of the first and second CPUs configured therein, and automatically matches the data of one CPU with other CPU data in case of mismatch. By following the train operation can proceed normally, it is economically advantageous and has the advantage of minimizing passenger inconvenience.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to drawings.

3 is a block diagram showing a structure of an electronic interlocking device having a data following structure according to an embodiment of the present invention.

Referring to this, the electronic interlocking device 300 of the data tracking structure according to the embodiment of the present invention includes an integrated CPU storing the reference data and the error tolerance data therein, in the interior of the electronic interlocking device. When a CPU mismatch occurs, one CPU having a data value within an error tolerance range is selected, and another CPU follows the data value of the CPU so that the train can proceed even when the CPU mismatch occurs.

In more detail, the electronic interlocking device 300 of the data tracking structure according to the embodiment of the present invention is an electronic interlocking system (EIS), and the electronic interlocking device 300 has a first, The second CPU module 302 and 304 and the first and second communication units 306 and 308 are configured.

The two CPU modules 302 and 304 configured inside the electronic interlocking device 300 communicate with each other to compare the received data to determine whether they match, and when the received data match each other, the first and second CPU modules ( 302 and 304 perform serial communication with the external communication module 310 through the first and second communication units 306 and 308. Therefore, the electronic interlock device 300 includes two CPU modules 302 and 304 so that when an abnormality occurs in any one of the two CPU modules 302 and 304, the system can be operated to lower the safety accident rate by stopping the system. Have

In the electronic interlocking device 300, the first CPU module 302 and the second CPU module 304 output a control signal, and the first CPU module 302 sends the ON1 signal to the second CPU module 304. Outputs the ON2 signal.

The ON1 signal and the ON2 signal output by the first CPU module 302 and the second CPU module 304 are input to the first and second communication units 306 and 308, and the first and second communication units 306 and 308 are input. The activated first CPU module 302 or the second CPU module 304 is capable of serial communication with the display control unit 106 (see FIG. 1) and the external communication module 310 according to the ON1 signal and the ON2 signal signal values. It has a configuration to make it.

At this time, the electronic interlocking device 300 having a data tracking structure according to an embodiment of the present invention is connected to the first and second CPUs 302 and 304 therein, respectively, and the first and second CPUs 302 and 304 are connected. ) Further includes an integrated CPU 316 that selects one CPU (eg, 302) as a reference CPU and processes the data of another CPU (eg, 304) to follow the selected CPU data when the data mismatch occurs. The train can be operated even in the case of data inconsistency of the second CPUs 304 and 304.

That is, in the past, the train operation was stopped when the data mismatch of the first and second CPUs 304 and 304 caused an economic loss and inconvenience to the passenger. However, the electronic interlocking apparatus 300 having the data following structure according to the embodiment of the present invention. ) Is an electronic interlocking device that allows train operation to be continued by forcibly matching data of another CPU (eg, 304) to data of one CPU (eg, 302) even when data of the first and second CPUs 304, 304 is inconsistent. to be.

In addition, the integrated CPU 316 stores the data values of the first and second CPUs 302 and 304 in the electronic interlocking device 300 having a data tracking structure according to an embodiment of the present invention, and an error tolerance range. A memory 318 for storing data is further connected.

In addition, in the electronic interlocking device 300 having a data tracking structure according to an embodiment of the present invention, the reference CPU (eg, 302) is configured to receive error tolerance data stored in the memory 318 and each CPU 302, 304. The integrated CPU 316 is set to compare data with each other to select a CPU (e.g., 302) in which the received data is within an error tolerance range.

Meanwhile, the first and second CPUs 302 and 304 configured in the electronic interlocking device 300 having a data tracking structure according to an embodiment of the present invention are configured to perform mutual optical communication through the first optical communication unit 312. The first and second communication units 306 and 308 are configured to perform mutual optical communication through the second optical communication unit 314.

With reference to the accompanying drawings, the function and operation of the electronic linkage device having a data following structure in accordance with an embodiment of the present invention having the above configuration will be described in detail.

4 is a flowchart illustrating a signal flow of an electronic interlocking device having a data following structure according to an embodiment of the present invention.

First, when the first and second system CPUs 302 and 304 receive a control signal for each field device in a machine room, the electronic interlocking device 300 having a data following structure according to an embodiment of the present invention may be used. The second CPUs 302 and 304 quickly perform data comparison through the first optical communication unit 312.

When the data are mutually matched, each data is transmitted to the integrated CPU 316 and the corresponding data is transmitted to the external communication module 310 through the first and second communication units 306 and 308 to various field devices. By sending the corresponding control data, the field devices can be operated.

On the other hand, in the case of inconsistency of data, each data is transmitted to the integrated CPU 316, and the integrated CPU 316 receives the control data of the first and second CPUs 302 and 304 and the memory 318. The CPU 302 or 304 which receives the control data within the allowable error range is selected by comparing with the control data allowable data value stored in the control data.

If the control data of the first and second CPUs 302 and 304 are all out of the allowable range, the integrated CPU 316 selects an arbitrary CPU 302 or 304, and selects one of the CPUs within the error range. For example, if 302 exists, the CPU (e.g., 302) is selected as the reference CPU, and the data is matched so that control data of another CPU (e.g., 304) follows data of the reference CPU (e.g., 304). .

When the data match is completed, the corresponding data is transmitted to the external communication module 310 through the first and second communication units 306 and 308 to transmit the corresponding control data to various field devices so that the field devices can be operated. do.

Meanwhile, the electronic interlocking device having the data following structure according to the embodiment of the present invention is not limited to the above-described embodiment, but various modifications can be made without departing from the technical gist of the present invention.

1 is a block diagram showing the structure of a railway signal control system according to a conventional embodiment;

2 is a block diagram illustrating a general structure of an electronic interlocking apparatus for performing serial communication according to a conventional embodiment;

3 is a block diagram showing a structure of an electronic interlocking device having a data following structure according to an embodiment of the present invention;

4 is a flowchart illustrating a signal flow of an electronic interlocking device having a data following structure according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

300: electronic interlocking device, 302: 1 system CPU,

304: 2 system CPU, 306, 308: 1st, 2 communication unit,

310: external communication module, 312, 314: first and second optical communication unit,

316: integrated CPU.

Claims (5)

Displaying information on each site of the railway to the operator, and the display control unit for transmitting various control commands input from the operator and the site information received from each railway equipment to the display control unit according to the control command transmitted by the display control unit An electronic interlocking device is configured to operate the field devices so that the field devices can be controlled. The electronic interlocking devices include first and second CPUs for transmitting control signals to the field devices by comparing data with each other. An electronic interlocking device including first and second communication units connected to a CPU and connected to an external communication module, And an integrated CPU, connected to the first and second CPUs, respectively, which selects one CPU as a reference CPU when the data of the first and second CPUs are inconsistent, and processes the data of the other CPU to follow the selected CPU data. The electronic interlocking device of the data follow-up structure, characterized in that the train can be operated even when the data of the first and second CPUs are inconsistent. The electronic interlocking apparatus according to claim 1, wherein said integrated CPU further stores a data value of said first and second CPUs, and a memory for storing error tolerance data. The CPU of claim 1, wherein the reference CPU compares the error tolerance data stored in the memory with the data received by each CPU to select a CPU whose received data is within the error tolerance. An electronic interlock device having a data following structure. 2. The electronic interlocking apparatus according to claim 1, wherein the first and second CPUs perform optical communication through the first optical communication unit. 2. The electronic linkage apparatus according to claim 1, wherein the first and second communication units perform optical communication through the second optical communication unit.

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