Cable anti-theft device

Abstract

The invention discloses a cable anti-theft device, and belongs to the technical field of anti-theft of street lamp cables. The anti-theft device comprises a detecting host and a terminal node, wherein the detecting host comprises a control unit, a current pulse sending unit and a current loop signal resolving unit, and the control unit controls the current pulse sending unit to send current pulse signals to the terminal node; the terminal node resolves the current pulse signals and sends response current pulse signals to the current loop signal resolving unit of the detecting host according to the resolution result, and the current loop signal resolving unit of the detecting host resolves the response current pulse signals and transmits the resolution result to the control unit; the control unit calculates the terminal node address information according to the resolution result and judges whether the terminal node is lost or not according to the address information and uploads the lost information to a street lamp manager when the terminal node is lost. The current is used as a carrier to transmit data to ensure the quality of communication and achieve longer-distance signal transmission, so that the cable anti-theft device has the advantages of accurate detection and efficient operation.

Description

technical field [0001] The invention relates to the technical field of anti-theft street lamp cables, in particular to an anti-theft device for street lamp cables used during daytime based on a current loop communication mechanism. Background technique [0002] At present, in the field of intelligent street lighting, the cable anti-theft technical solutions are generally divided into the following types: one is to patrol the anti-theft through full-time personnel. The second is to lay underground cables to prevent theft, that is, to set protective hard plastic pipes on the street lamp cables or to bury them underground in concrete pipes. Because of their good concealment and protection, they have a certain anti-theft effect. The third is the anti-theft of electronic technology, which is to install electronic monitoring instruments on the street lamp cable or at the end of the street lamp cable. When the cable is stolen, the system equipment will send out an alarm signal in t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cable anti-theft device to solve the problems of low signal anti-interference ability and low communication quality in the existing cable anti-theft technology

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