目的　实时监测电力机车弓网故障 .方法　利用冲击加速度传感器以及左右限位传感器 ,实现对弓网故障的监测 .结果　设计了一套动态监测系统 ,当电力机车弓网发生故障时 ,系统能及时报警 ;同时系统还有自复位功能 .结论　司机能及时了解列车运行的情况 ,避免造成不必要的损失 .整个系统操作简单、方便灵活 Objective To monitor the fault of electric motorcar arch network in real time.METHODS The impact acceleration sensor and the left and right limit sensors were used to monitor the fault of arch motor.Results A dynamic monitoring system was designed.When the fault of electric motorcar arch network occurred, At the same time, the system also has self-reset function.Conclusion The driver can keep abreast of the train operation and avoid unnecessary losses.The whole system is easy to operate and convenient