Method and device for monitoring temperature of train axle box

Abstract

An embodiment of the present invention provides a method and device for monitoring the temperature of a train axle box, the method comprising: calculating a waveform jump index according to a target waveform curve, the target waveform curve being a temperature waveform for a preset period of time for the target axle box curve, the waveform jump index is used to represent the waveform jump degree of the target waveform curve; according to the target waveform curve and the waveform jump index, the monitoring result is sent to the train control system. The method and device for monitoring the temperature of the train axle box provided by the embodiment of the present invention, by optimizing the software algorithm, adds the function of identifying and judging the abnormal temperature curve, and solves the problems of the axle box, gearbox and motor in the operation process of the high-speed EMU. The problem of false alarms caused by abnormal jumps in bearing temperature detection signals reduces the probability of false alarms in temperature detection and improves the operating efficiency of EMUs.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of rail transit, and in particular to a method and device for monitoring the temperature of a train axle box. Background technique [0002] When the train is running, the axles and bearings rub against each other to generate heat. When there is a fault between the axle and the bearing, the friction force increases, the heat energy generated increases, and the temperature of the axle box also rises. When the temperature of the axle box exceeds a certain threshold, an axle burning accident will occur, and the train will burn Shaft faults directly threaten the safety of railway transportation, causing train delays in mild cases and derailment in severe cases. Therefore, it is very important to monitor the temperature of the train axle box. [0003] In the prior art, the method for monitoring the temperature of the train axle box mainly includes the following steps: first, the tempera...

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Problems solved by technology

[0004] However, this method has the following disadvantages: that is, the actual temperature does not reach the set value, but due to the failure of the temperature sensor or the poor contact of the acquisition line, temperature information exceeding the threshold value is generated, thereby causing false alarms and reducing the operating efficiency of the train

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