Fault detection system of AC turnout switch machine and method thereof

Abstract

The invention discloses a fault detection system of an AC turnout switch machine and a method thereof. The fault detection system comprises a current sampling device, a voltage sampling device and a fault analysis module, wherein, the input ends of the current sampling device and the voltage sampling device are respectively connected with a circuit to be tested of a turnout switch machine room, and the output ends of the current sampling device and the voltage sampling device are connected with the fault analysis module; and the fault analysis module is divided into a status monitoring moduleduring the turnout operation period and a status monitoring module during the turnout power-receiving period which are used for detecting operating condition, procedure parameters and fault message of the turnout switch machine and outputting the operating condition, the procedure parameters and the fault message through a status display interface. The practical fault detection system of the turnout switch machine and the method thereof proposed by the invention start from fault detection of the turnout switch machine to provide effective technique means for real-time monitoring of the turnout switch machine and provide guarantee for safety operation of the turnout switch machine.

Description

technical field [0001] The invention relates to the technical field of fault detection of rail transit, in particular to a fault detection system and method for an AC switch point machine. Background technique [0002] At present, signal turnout switch machines are mainly divided into two types: DC and AC. Due to the insurmountable defects of the DC switch machine itself, the AC switch machine is the future development trend. Therefore, domestic new subways and high-speed railways all use AC switch machines. [0003] The signal turnout switch machine is an important signal equipment, and the frequency of action is high, especially the turnout of the subway during the return period, which moves back and forth every 4 minutes on average. Its failure ranges from delays and clearing of passengers, which disturbs the normal travel of passengers; in serious cases, the car crashes and kills, threatening the lives of passengers. But at present, there is no predictive and early wa...

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Problems solved by technology

[0010] Aiming at the technical defects existing in the prior art, the object of the present invention is to provide a detection system and method for a switch machine fault, which can be detected online in real time by using an indirect measurement method without affecting the normal operation of the original system. The stress situation and other process parameters during the actual operation of the turnout point machine, predict and early discover the bad state of the turnout point machine, especially find and predict the good contact of the contacts in the relay circuit, and maintain it in time, so that To achieve the purpose of reducing failures and improving reliability, and ensuring the normal operation of the switch machine

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