Fault detection method and device for pressure wave sensor in train, equipment and medium

Abstract

The invention discloses a fault detection method and device for a pressure wave sensor in a train, electronic equipment and a computer readable storage medium. The method comprises the steps: acquiring the speed of the train; judging whether the vehicle speed is less than a preset vehicle speed threshold; if yes, whether the vehicle speed is less than a preset shielding threshold value or not is judged; if the vehicle speed is less than the preset shielding threshold value, obtaining a pressure difference detection value of the pressure wave sensor, judging whether the pressure difference detection value or the change rate exceeds a preset range or not, and if yes, judging that the pressure wave sensor breaks down; if the train speed is not less than the preset shielding threshold value, judging whether the activation accumulated duration of the pressure wave train line activation signal of the train exceeds the preset duration or not: if yes, judging that the pressure wave sensor breaks down. The fault detection problem of the pressure wave sensor under the condition that the differential pressure detection value does not exceed the measuring range is effectively solved, the faultdetection accuracy of the pressure wave sensor is improved, and the train running safety is guaranteed.

Description

technical field [0001] The present application relates to the technical field of electronic equipment detection, and in particular to a fault detection method, device, electronic equipment and computer-readable storage medium for a pressure wave sensor in a train. Background technique [0002] During the running of the train, in order to ensure the safety of the system equipment and the physical comfort of the passengers, it is necessary to make timely and appropriate adjustments according to the pressure wave changes on the train. Therefore, pressure wave sensors are installed on the train to detect the pressure difference inside and outside the train, so that The train controller automatically activates the pressure wave train line activation signal when the pressure difference detection value of the pressure wave sensor is large, that is, closes the new damper of the entire train air conditioning system to maintain a constant pressure difference inside and outside the trai...

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Problems solved by technology

[0003] In the related art, when judging whether the pressure wave sensor is faulty, the pressure wave sensor is judged to be faulty only when the detection value of the pressure wave sensor exceeds the range of the sensor. Failure of the pressure wave sensor and the discrepancy between the readings of the sensor and the actual situation may occur, which may cause abnormal activation of the pressure wave train line signal, resulting in insufficient fresh air in the train, reducing the ventilation, cooling and heating efficiency of the train air conditioner and increasing energy consumption; Serious consequences such as lack of oxygen in the train and suffocation of passengers will affect the safe operation of the train

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