Cable anti-theft device and method thereof

A technology of cables and cable cores, which is applied in anti-theft alarm mechanical start-ups, 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, elimination of detection blind spots, and labor-saving effects

Inactive Publication Date: 2015-06-10
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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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 accompanying drawings.

[0019] Such as figure 1 As shown, a 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 signals to the alarm unit, the input end of the disconnection detection unit is connected to the distance measuring unit, and the output end of the disconnection detection unit is connected to the control center. In addition, the control center includes a display, and when the distance measuring unit fails, an alarm prompt signal can be displayed on the display, and 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 2: The signal is judged b...

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PUM

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Abstract

The invention relates to a cable anti-theft device and a method thereof and belongs to the field of cable theft prevention. A cable comprises a cable core, a protective layer located outside the cable core and a sheath layer covering the protective layer. The device comprises an alarm unit, a control center, a line breakage detection unit and a ranging unit; the control center outputs a signal to the alarm unit and the ranging unit; the input end of the line breakage detection unit is connected with the ranging unit; the output end of the line breakage detection unit is connected with the control center. The line breakage detection unit detects trace current in a circuit under detection, through volt-ampere characteristics of a triode and through the control center, thereby judging line breakage of a transmission line; once line breakage occurs, a ranging alarm is given out fast, and thus, economic loss is reduced and mistaken alarming of the existing detection circuit is avoided; the circuit is simple, and the problem that the prior cable anti-theft device is high in false alarm rate is solved.

Description

technical field [0001] The invention relates to the field of cables, in particular to the field of anti-theft cables. Background technique [0002] The safety protection of power cables is a problem that the power sector has been solving. The existing cable anti-theft alarm circuits 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. The cost is high, the reliability is low, and because the radio method is affected by the terrain environment (mountainous or remote areas), it is difficult to popularize and apply it on a large scale. However, the anti-theft alarm device used for street lamps and power cables on the transformer side has a relatively high false alarm rate and low cost. Reliable anti-theft devices are in high demand. Contents of the invention [0003] In order to overcome the problem of relatively high false al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/12
CPCG08B13/12
Inventor 梁广俊
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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