本系统可安装在汽车上，用于雾天或夜间监测前方车辆，并在车速、车距达到临界安全值时发出报警信号，以避免交通事故的发生，确保行车安全。

It can give alarming signal when the speed of vehicle and the distance between vehicles reach the edge of security, so more traffic accidents can be avoided.

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当设备异常或检测装置发出事故信号时，PC按程序进行异常事故显示、报警和处理。

PC will give a unusual accident display, alarming and treatment as programmed in case that the conveyer is out of normal order or any accident occurs in the detecting system.

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最终查出造成机组事故的根本原因是可控硅励磁装置供电电源无工作状态监视信号及故障报警信号；

The final basic cause that resulted in the failure is no working state monitoring signal and failure warning signal of power supply source of controlled silicon excitation device.

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