Cable anti-theft device and method thereof

A technology of cables and cable cores, which is applied in the direction of anti-theft alarm mechanical start-up, alarms that rely on broken/disturbed straightened ropes/metal wires, etc., can solve the problem of high false alarm rate of cable anti-theft alarm devices, and improve system security. Sexuality, ease of use, and avoiding false alarms

Inactive Publication Date: 2017-09-29
ANHUI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of relatively high false alarm rate of cable anti-theft alarm devices in the prior art, the present invention provides a cable anti-theft alarm device and its method

Method used

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  • Cable anti-theft device and method thereof
  • Cable anti-theft device and method thereof

Examples

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Embodiment Construction

[0018] The specific embodiment will be described below in conjunction with the drawings.

[0019] Such as figure 1 As shown, a cable anti-theft alarm device. The cable includes a cable core, a protective layer located outside the cable core, and a sheath layer wrapped outside the protective layer. The device includes an alarm unit, a control center, a disconnection detection unit, and a distance measuring unit , The control center outputs signals to the alarm unit, the input end of the disconnection detection unit is connected to the ranging unit, and the output end of the disconnection detection unit is connected to the control center. In addition, the control center includes a display. When the ranging unit fails, an alarm signal can be displayed on the display. The display can be a liquid crystal display.

[0020] The method of the cable anti-theft alarm device is:

[0021] Step 1. Line connection;

[0022] Step two, the signal is judged for open circuit;

[0023] Step 3. The judgm...

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PUM

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Abstract

The invention relates to a cable anti-theft device and a method thereof, belonging to the field of cable anti-theft. In the cable anti-theft alarm device, the cable includes a cable core, a protective layer outside the cable core and a sheath wrapped outside the protective layer. The device includes an alarm unit, a control center, a disconnection detection unit and a distance measuring unit. The control center outputs The signal is sent to the alarm unit and the distance measuring unit, the input end of the disconnection detection unit is connected to the distance measurement unit, and the output end of the disconnection detection unit is connected to the control center. The disconnection detection unit used in this device uses the volt-ampere characteristics of the triode and combines the control center to detect the tiny current in the circuit under test to judge the disconnection of the transmission line. Once a disconnection occurs, it can quickly measure the distance and alarm. In order to reduce economic losses, avoid false alarms of the existing detection circuit and the circuit is very simple, and solve the problem of relatively high false alarm rate of the cable anti-theft alarm device in the prior art.

Description

Technical field [0001] The present invention relates to the field of cables, in particular to the field of cable anti-theft. Background technique [0002] The safety protection of power cables is a problem that the power sector has to solve all the time. The existing cable anti-theft alarm circuits all use a remote detection terminal with voltage detection and power carrier communication functions installed at the end of the power cable, so the circuit is very complicated and there are many components. High cost, low reliability, and because the radio method is affected by the terrain environment (mountain or remote areas), it is difficult to promote and apply in a large area, and the anti-theft alarm device used for street lamps and transformer-side power cables has a relatively high false alarm rate and low cost The demand for reliable anti-theft devices is very large. Summary of the invention [0003] In order to overcome the relatively high false alarm rate of cable anti-thef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B13/12
CPCG08B13/12
Inventor 辛建芳李淑敬诸志龙张芳梁广俊李林国
Owner ANHUI POLYTECHNIC UNIV
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