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Method for detecting fault of anti-surge device in train automatic control system

A technology for automatic control and fault detection of trains, which is applied in the direction of instruments, measuring electronics, and measuring devices, and can solve problems such as component failure, error, and protection function impact

Active Publication Date: 2014-04-23
TRAFFIC CONTROL TECH CO LTD
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Problems solved by technology

[0006] It can be seen from the above description that in the first method, components such as DC power supply and photorelay need to be added to the input acquisition circuit, and placing an active power chip in the input acquisition circuit will have a certain impact on the EMC protection function. The components added at the same time have a certain risk of failure, which affects the availability of the entire system
In the second method, the dynamic signal is used for acquisition, but it can only ensure that the fixed level is collected when the components on the input acquisition circuit fail. If the external cable is mixed, it will be mistaken for the switch to be closed and the error will be collected. information

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  • Method for detecting fault of anti-surge device in train automatic control system

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0019] An embodiment of the present invention provides a fault detection method for an anti-surge device in an automatic train control system, see figure 1 , the method includes:

[0020] Step 101: collect the signal of the ground in the circuit through one input acquisition circuit;

[0021] Step 102: Detect whether there is a signal at the output te...

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Abstract

The invention provides a method for detecting faults of an anti-surge device in a train automatic control system. The method comprises that an input acquiring circuit acquires a ground signal in a circuit and detects whether a signal is outputted by the output end of the input acquiring circuit; if a signal is outputted, it is determined that short circuit occurs to the anti-surge device; and that if no signal is outputted, it is determined that short circuit does not occur to the anti-surge device. According to the method for detecting faults of an anti-surge device in a train automatic control system, fault detection on the anti-surge device using the input acquiring circuit in the train automatic control system does not need additional components and parts, does not influence the availability of the train automatic control system, and does not generate external wire tangle.

Description

technical field [0001] The invention relates to the technical field of lightning protection, in particular to a fault detection method for a surge protection device in an automatic train control system. Background technique [0002] The automatic train control system needs to collect the input switch value of the vehicle. These switching values ​​are crucial to the entire system. If the acquisition is wrong, it will affect the automatic control system to output wrong control information, which may cause casualties and other accidents. These switches introduced by vehicles will inevitably have interference signals such as surges and high frequencies. In order to ensure that the correct input switches can be collected, it is usually necessary to design EMC (Electro Magnetic Compatibility, electromagnetic compatibility) protection in the input acquisition circuit circuit. The anti-surge device in the EMC protection circuit may be broken down and fail in practical applications...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 李超栾庆文陆启进石赟张鹏
Owner TRAFFIC CONTROL TECH CO LTD
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