Warning processing circuit

Abstract

This invention discloses an alarm process circuit of a security unit including an alarm follow current unit, a protection unit, a locking unit and a multi-pole RC signal delay unit, which can differentiate the harm state of bumps of current by the alarm follow current unit composed of a quiuck broken fuse and a slow broken resistor and a multi-pole RC signal delay unit composed of an integrated circuit matched with a locking unit composed of two audions and a resistor to generate follow alarm signals and lock said state when commercial powers are overlapped.

Description

technical field [0001] The invention relates to an alarm technology in the field of electronic communication, in particular to an alarm processing circuit. Background technique [0002] The security unit of the main distribution frame product plays a protective role in the communication line. When the mains is connected to the communication line, the security unit protects the subsequent equipment by releasing to the ground or opening the main circuit, and at the same time sends out an alarm signal for maintenance. Troubleshooting by personnel; when struck by lightning or subjected to electric induction, the security unit is punctured and discharged to the ground to release the lightning strike energy. [0003] At present, the alarm processing circuit of the security unit uses a mechanical trigger mechanism to drive the mechanical mechanism according to the heat generated by the device. There are two methods: one is to make the fusible metal into a ring (fusible ring) or bl...

AI Technical Summary

Problems solved by technology

Although the alarm processing circuit of the security unit in the prior art can play the role of protection and alarm, since the circuit does not output alarm signals regardless of the mains lap, lightning strike or power line induction, it is impossible to distinguish the current touch hazard. grade

At the same time, the existing technology uses a mechanical trigger mechanism, which has defects in realization: the security unit responds slowly, has a large volume, high cost, and has certain influence on the use environment

[0005] It can be seen that the alarm processing circuit of the security unit in the prior art has the problem of being unable to distinguish the level of electric current contact hazards, and the response speed of the security unit is slow, the volume is large, and the cost is high

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