Fault detection device and method for safety interlocking loop of train door

A safety interlock and fault detection technology, applied in the field of train vehicle door systems, can solve problems such as short-circuit faults in the door safety interlock circuit, and achieve the effects of easy emergency treatment, good application prospects, and easy vehicle return to the warehouse for maintenance

Active Publication Date: 2017-12-01
NANJING KANGNI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is that the short-circuit fault of the door safety interloc

Method used

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  • Fault detection device and method for safety interlocking loop of train door
  • Fault detection device and method for safety interlocking loop of train door
  • Fault detection device and method for safety interlocking loop of train door

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, the fault detection device of the car door safety interlock circuit of the present invention includes a short circuit detection and removal circuit, a short circuit point detection and positioning circuit, a microprocessor chip, a memory circuit and a communication bus transceiver circuit,

[0033] The short-circuit detection and removal circuit is used to detect and remove the short-circuit point in the door safety interlock circuit;

[0034] The short-circuit point detection and positioning circuit is used to output a constant current to the short-circuit point through the control of the microprocessor chip, and collect the voltage signal at the short-circuit point, and transmit it to the microprocessor chip;

[0035] The microprocessor chip, according to the detection feedback of the short circuit detection and cutting circuit to t...

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PUM

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Abstract

The invention discloses a fault detection device and a method for the safety interlocking loop of a train door. The device comprises a short circuit detecting and cut-off circuit, a short circuit point detecting and positioning circuit, a microprocessor chip, a memory circuit and a communication bus transceiving circuit. The short circuit detecting and cut-off circuit, the short circuit point detecting and positioning circuit, the memory circuit and the communication bus transceiving circuit are respectively connected with the microprocessor chip. The short circuit detecting and cut-off circuit and the short circuit point detecting and positioning circuit are connected with a safety interlocking loop detection system of a railroad train. According to the fault detection device and the method for the safety interlocking loop of the train door, the short circuit fault of a train door safety interlocking loop is detected. After that, a fault point is automatically cut off, and a short circuit point is positioned. The fault information is stored, and a fault code is displayed. Moreover, the information is sent to a railroad train bus communication system through a communication line interface. As a result, the emergency treatment of an on-site crew member and the maintenance of a returned train are facilitated. The device and the method are good in application prospect.

Description

technical field [0001] The invention relates to the technical field of train vehicle door systems, in particular to a fault detection device and method for a train door safety interlock circuit. Background technique [0002] At present, there are several doors on each side of the train vehicle, and the micro switches that reflect the position of the doors are installed on the doors. The train vehicles will connect these micro switches in series through cables to form a door safety interlock circuit. When in the locked state, the safety interlock circuit is turned on, and the safety interlock circuit detection system of the train vehicle can receive the conduction signal. At this time, the train vehicle has the conditions for traction. However, as long as any door is not locked If it is in place, the safety interlock circuit will be in a disconnected state, the safety interlock circuit detection system of the train vehicle will not receive the conduction signal, and the train...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/08
Inventor 茅飞朱志勇黄天太
Owner NANJING KANGNI ELECTRONICS TECH
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