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Power cable tending and monitoring anti-theft alarming system and monitoring alarming method

An anti-theft alarm and power cable technology, applied in anti-theft alarms, alarms, detection of faults by pulse reflection method, etc., can solve problems such as impracticality, and achieve the effect of avoiding losses and being convenient and simple to implement.

Inactive Publication Date: 2015-06-24
STATE GRID CORP OF CHINA +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solution (2) needs to change the existing cable structure, and calculate the length by the resistance value in the middle of the added anti-theft cable, which is not practical

Method used

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  • Power cable tending and monitoring anti-theft alarming system and monitoring alarming method
  • Power cable tending and monitoring anti-theft alarming system and monitoring alarming method

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing:

[0025] Such as figure 1 As shown, the system of the present invention includes FPGA and a pulse generator connected with the FPGA and controlled by it, a DC pulse driving voltage generator, a reflected pulse detector, an acousto-optic alarm, a GSM module and an LCD display; The other end of the DC pulse driving voltage generator is connected to the pulse generator; the monitoring cable is respectively connected to the pulse generator and the reflected pulse detector.

[0026] Using FPGA technology to centrally control all components, using the reflection characteristics of the pulse signal on the cable, it is possible to load the pulse signal and detect the reflected signal at one end of the cable without having to operate at both ends, that is, the operation is simple. On the other hand, the present invention rationally utilizes the GSM communication system, and when the cab...

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Abstract

The invention provides a power cable tending and monitoring anti-theft alarming system and monitoring alarming method. The system comprises an FPGA, a pulse generator, a direct current pulse drive generator, a reflected pulse detector, an audible and visual alarm device, a GSM module and an LCD display screen. The pulse generator generates a constant-speed pulse signal on a monitored cable, the length of the cable is worked out by detecting the waveform of the reflected pulse on the cable and the time difference between the reflected pulse and the transmitted pulse, if the cable length calculated through the FPGA is not the preset cable length value or the reflected wave changes, the audible and visual alarm device is controlled to give an alarm, and the GSM module texts messages about stealing of the cable to assigned mobile phones in a mass mode. Whether the cable is cut through stealing or damaged can be rapidly detected at one end of the cable through the system, implementation is convenient and easy, the detected signal waveform and the calculated related data are displayed on the LCD display screen, and the abnormal position can be visually observed.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and relates to a power cable monitoring and anti-theft alarm system and a monitoring and alarm method. Background technique [0002] The rapid development of the current urban power cable power supply network poses a huge challenge to the safe operation of cables and accident prevention in the power sector. Due to the three major characteristics of power cables, such as large unit value, wiring through cable trenches, and being widely distributed in relatively remote areas, in recent years, some criminals have extended their black hands to power cables in order to seek illegal benefits, which has brought great harm to the production and life of the masses. It has brought about serious impacts and caused huge losses to national property. It is imperative to monitor the non-running cables of multi-circuit power cables and patrol inspections during the cable laying period to guard against...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/00G01R31/11
Inventor 米建伟白晓斌梁军科郑建康蒲路贾宏发梁小刚邓央奕
Owner STATE GRID CORP OF CHINA
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