Fault safety crossing master control unit, control cabinet and control system

A fail-safe, master control unit technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problem of inability to meet the safety and reliability requirements of level crossings, lack of experience in dealing with dense crossings, lack of, etc. problems, to achieve the effect of reducing the incidence of crossing accidents, improving safety and reliability, and improving accuracy

Inactive Publication Date: 2016-11-09
通号国际控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, my country's railway signal engineering design field lacks experience in dealing with dense crossings, lacks more advanced and mature crossing system design schemes, and cannot meet the requirements of the actual situation of overseas railway projects for the safety and reliability of level crossings

Method used

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  • Fault safety crossing master control unit, control cabinet and control system
  • Fault safety crossing master control unit, control cabinet and control system
  • Fault safety crossing master control unit, control cabinet and control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, the embodiment of the present invention provides a fail-safe crossing main control unit 10 , including two CPU boards 11 , three acquisition boards 12 , four or five drive boards 13 and one power board 14 .

[0030] The CPU board 11 is the main operation unit of the crossing control logic, which is used to receive the state change of the acquisition board and make corresponding logic operations, and send the control command to the drive board. Each CPU board includes two MCUs, and the two MCUs adopt TITMS570 safety control The chip is used to perform crossing logic comparison operations, and each MCU cooperates with the corresponding CPU board function software to complete the subsystem functions.

[0031] Specifically, the fail-safe crossing master control unit 10 has two CPU boards, and each CPU board includes, in addition to the above two MCUs for crossing logic comparison operations, another MCU for non-safety functions such as log storage an...

Embodiment 2

[0050] like image 3 As shown, the embodiment of the present invention provides a fail-safe crossing control cabinet 30 (Main Control Cabinet, MCC for short), including a fail-safe crossing main control unit 31, a notification repeater relay 32, an outdoor equipment interface board module 33 and a power supply Module 34. The fail-safe crossing control cabinet 30 is indoors, and is the control technology and equipment of the core part of the crossing. Except for the interface with the interlocking system, the crossing signal system adopts an all-electronic mode for the control of the crossing equipment.

[0051] The notification repeating relay 32 is an N-type gravity relay, which is used for repeating the approach notification of the uplink and downlink trains in the interlocking system. The repeating relays are respectively from left to right: the first up approach, the second up approach, the first down approach, and the second down approach. Ensure that the relay is picke...

Embodiment 3

[0055] like Figure 4 As shown, the embodiment of the present invention provides a fail-safe crossing control system 40 , including a fail-safe crossing control cabinet 41 , a crossing control indicator 42 , and outdoor equipment 43 .

[0056] The fail-safe crossing control system 40 is associated with the interlock system and utilizes the interlock system to provide train approach information. At the same time, the state of the crossing is reflected to the interlock through the interlock condition notification relay, which reduces the possibility of accidents caused by human operation and further improves the reliability and safety of the system. According to the interface requirements, the system obtains the train approach notification conditions from the interlock through the interface relay, controls the indoor and outdoor equipment to alarm, and at the same time feeds back the crossing status to the interlock, and the interlock controls the train operation.

[0057] In t...

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PUM

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Abstract

The invention provides a fault safety crossing master control unit, a control cabinet and a control system. The fault safety crossing master control unit comprises two CPU boards, three acquisition boards, four or five driving boards and one power board, wherein the two CPU boards are in mutual hot standby relation, each CPU board comprises two MCUs to respectively conduct operation and task level comparison and output result when comparison results are consistent, and the acquisition boards and the driving boards employ bi-MCU operation, conduct task level comparison and output result when comparison results are consistent. The fault safety crossing control cabinet comprises a notification repeater relay, a power supply module, an outdoor equipment interface board module and the fault safety crossing master control unit. The fault safety crossing control system comprises a crossing control indicating disc, outdoor equipment and the fault safety crossing control cabinet. Double 2-vote-2 technology is employed to improve the safety and reliability of a crossing system.

Description

technical field [0001] The invention relates to the technical field of railway crossing control, in particular to a fail-safe crossing main control unit, a control cabinet and a control system. Background technique [0002] At present, various remote control fences, automatic signals, automatic obstacle detection devices and centralized fault monitoring devices are being widely used in the protection of railway crossings. In Europe, the railway network is well developed, the density of crossings is high, and the risk of accidents is relatively high. More representatively, the United Kingdom has developed a level crossing predictor (LCP for short), in which a passive switch is installed at the ends of the tracks on both sides, and when the train passes, the impedance and voltage of the track circuit will change. The linear change reflects the position of the train approaching the crossing and calculates the speed of the train to determine the time when the train passes the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042B61L29/22
CPCG05B19/0421B61L29/22G05B2219/24182
Inventor 宋晨亮乔庆刚施博关新超陈睿
Owner 通号国际控股有限公司
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