Defence area bypass system of alarm system

Abstract

The invention relates to the field of public security alarm systems, in particular to a defence area bypass system of an alarm system. The input end of the bypass system is connected with a monitoring probe of the alarm system. The output end of the bypass system is connected with an expansion board of the alarm system. The output end of the extension board is connected with an alarm mainframe of the alarm system. The bypass system comprises a bypass part and a control part. The monitoring probe is connected with the input end of the bypass part. The output end of the bypass part is connected with the extension board. The control part is connected with the control end of the bypass part. According to the defence area bypass system of the alarm system, bypass conducted on output signals of a detector is achieved on the aspect of hardware, only effective alarm information can be uploaded according to the actual situation of a defence area, noneffective alarm information is completely not uploaded, manual or timing automatic bypass operation can be achieved, the pressure of a bus is greatly relieved, and the problem of data jam is solved.

Description

technical field [0001] The invention relates to the field of public security alarm systems, in particular to a zone bypass system of the alarm system. Background technique [0002] With the continuous increase of security applications, some large museums, tourist areas, exhibition halls and other units have continuously improved security requirements, so these units will install large-scale alarm systems, including multiple alarm hosts and multiple monitoring probes (these probes It can be infrared, microwave, infrared and microwave double-detection detectors, etc.); but the alarm host can only be directly connected to about 10 probes. When there are a large number of probes, it needs to be connected to the alarm host through the accessory of the alarm system, that is, the defense zone expansion board. , usually each defense area expansion board can control 8 probes. For example, if an alarm system needs to manage 250 probes, it needs to install 30 defense area expansion boa...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention proposes a defense area bypass system of the alarm system, which realizes the bypass processing of the output signal of the detector from the hardware, and can filter the alarm information according to the actual situation of the defense area. Invalid alarm information is not uploaded at all, which greatly reduces the pressure on the bus and solves the problem of data congestion

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