350KM standard electric multiple unit unstable detection method and device

Abstract

The invention discloses a 350KM standard electric multiple unit unstable detection method and device. The device includes a stable sensor, an unstable sensor, a stable data preprocessing unit, an unstable data preprocessing unit, a stable data processing unit, an unstable data processing unit, a communication unit and a power supply unit. The stable sensor, the stable data preprocessing unit and the stable data processing unit are communicated successively. The unstable sensor, the unstable data preprocessing unit and the unstable data processing unit are communicated successively. The signaloutput ends of the stable data processing unit and the unstable data processing unit are connected with the signal input end of the communication unit. Through judging three-direction stable working conditions of lateral, vertical and longitudinal directions and a lateral direction unstable working condition of a train, working conditions when stable alarms, unstable pre-alarms and alarms are generated are correspondingly recorded to facilitate data analysis.

Description

technical field [0001] The invention belongs to the technical field of electrical detection, and in particular relates to a method and a device for detecting instability of a 350KM standard train set. Background technique [0002] With the rapid development of high-speed trains, there have been many train accidents around the world. At home and abroad, more and more attention has been paid to the online monitoring of high-speed trains, especially the online monitoring of the deformation part. In foreign countries such as Europe and Japan, various sensors are installed on the bogie in real time to monitor and record whether there is snaking movement and other dynamic parameters changes during the operation of the vehicle. Among them, AEA in the UK installs sensors on the bus to monitor the vibration of the vehicle; France Banbadi is focusing on the research of BCM-System, namely "Bogie Condition Monitoring System". In China, the bogie instability detection device (BIDS) of J...

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Problems solved by technology

[0004] 1. The original data is not saved or saved too little, and the support for ground data analysis is not enough

[0005] At present, the existing high-speed train instability detection device can collect, process and judge the vehicle lateral acceleration signal, but the analysis support for the alarm and historical data is not good. For example, the instability detection equipment of Kawasaki Heavy Industries is only 1.6s Some models do not even record the alarm data. For example, the instability detection system of Siemens is integrated in the brake control unit BCU and does not store the data waveform.

The lateral acceleration signal of a high-speed train is mixed with uncertain interference and external excitation, and the alarm information is only judged based on the monitoring data of a single train, which invisibly increases the false alarm rate of the system

At the same time, because there is no data storage function, it is impossible to establish real-time train data and ground database, so it cannot provide a horizontal comparison of instability states between single carriages, and loses its guiding role in ground maintenance

Therefore, the current existing hardware platform cannot meet the data analysis requirements for alarm information

[0006] 2. The bogie instability detection device monitors the status of the train bogie in real time. After it is put into use, it will be in a complex environment, susceptible to electromagnetic, electric field and harmonic interference, and may interfere with other equipment on the train

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