Alarm device and anti-theft device

Abstract

The embodiment of the invention relates to the field of anti-theft equipment, and discloses an alarm device and an anti-theft device, wherein the alarm device comprises an alarm, an anti-theft wire, an electric measuring module and a processing chip. The electric measuring module is used for acquiring the electric parameters of the anti-theft wire and is electrically connected with the processingchip. The processing chip is electrically connected with the alarm, and is used for triggering the alarm when the change of the electric parameter value obtained by the electric measuring module accords with the preset rule. The alarm device works even if in the case of being short-circuited or the anti-theft wire is cut off, which makes the reliability of the alarm device greatly enhanced.

Description

technical field [0001] The embodiments of the present invention relate to the field of anti-theft equipment, in particular to alarm equipment and anti-theft equipment. Background technique [0002] Anti-theft equipment refers to adding a layer of mesh doors and windows with anti-theft protection function on the basis of the original windows of the building. In order to enhance the security of the current anti-theft equipment, an anti-theft net is set on the anti-theft device to form an invisible mesh structure. If the mesh structure of the anti-theft net is damaged, it can be determined that someone has entered the room illegally and an alarm can be issued. [0003] The inventor of the present invention found that the alarm device of the existing anti-theft device will only give an alarm when the mesh structure is destroyed, and the thief can short-circuit the mesh structure, that is, connect a wire in parallel at both ends of the mesh structure , Cut off the original mesh ...

AI Technical Summary

Problems solved by technology

[0003] The inventor of the present invention found that the alarm device of the existing anti-theft device will only give an alarm when the mesh structure is destroyed, and the thief can short-circuit the mesh structure, that is, connect a wire in parallel at both ends of the mesh structure , then cut off the original network structure, the alarm equipment will not alarm, the thief can still easily commit crimes, the security performance of the alarm equipment is not satisfactory

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