该系统能够及时准确的检测出吊杆运行过程中的各种故障信号，根据故障情况可以发出相应的报警信号并切断主回路，达到安全保护的目的。

It can detect all the malfunction signals of platform booms in time and exactly, give alarms and cut off the main circuit to protect it.

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后门是五锁连环栓，单回路报警系统，小菜一碟。

Back door has a five-pin tumbler system, single-circuit alarm. Child's play.

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同时，通过导线接通外接电源，报警器，形成一个回路，实现报警。

Simultaneously, a loop circuit is formed by a lead line being connected with an outer connecting power and a warning unit and the warning is achieved.

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