Reliability Qualification Test of Train Monitoring Devices

Reliability Qualification Test of Train Monitoring Devices

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Currently rail transit has no reliability qualification test standards yet.To verify whether the MTBF of LKJ meet the requirements, with the main working environment analysis of LKJ, comprehensive environmental conditions victory white camellia of six kinds of stress which consisted of temperature, humidity, vibration, shock, changes in voltage, surges and electrical fast burst were designed, and against the specific test conditions, the censored time trial statistics program was determined using.By experiment, MTBF point estimation value was obtained whelen arges spotlight by 8 558 h, and 60% confidence interval estimate of the value was (2 858 h, 38 351 h).