Design and Research on Vibration Detection Device for Subway Power Supply Contact Rail
When the vibration displacement of the power supply contact rail is large,it will cause varying degrees of damage to the contact rail.Therefore,subway engineers need to periodically monitor and record the vibration of the power supply contact rail.In order to facilitate subway engineers in monitoring the vibration of the power supply contact rail,a subway power supply contact rail vibration displacement detection device has been developed.The device is based on the STM32F103R8T6 ARM chip,which real-time detects the 4-20mA analog electrical signal output by the vibration transmitter,calculates the value of vibration displacement,and drives the internal RTC module of ARM to generate date and time information.The date,time,and vibration displacement value are recorded every 10 ms,record this data in a TXT text file on the TF card.The monitoring effect of this device on the vibration displacement of the power supply contact rail is very ideal and cost-effective,which is worth promoting and applying in the rail transit industry.
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