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Underground cable comprehensive detection system

A comprehensive detection and underground cable technology, applied in radio wave measurement system, geophysical measurement, measuring device, etc., can solve the problems of waste of manpower and material resources, inconvenient operation, small detection range, etc., to reduce labor intensity and facilitate search , The effect of frequency stabilization

Active Publication Date: 2013-09-04
STATE GRID CORP OF CHINA +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

When maintaining underground cables, it is necessary to accurately locate, track, identify and sound the underground cables. Although there are line diagrams and a certain number of marks drawn during the construction process, there are inevitably some ambiguities, unknown directions, and Inaccurate places will not only cause a lot of waste of manpower and material resources during the excavation process, but also cause low efficiency, and there will also be digging errors causing major losses
Existing underground cable detection devices generally have problems such as small detection range, low precision, and inconvenient operation.

Method used

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  • Underground cable comprehensive detection system
  • Underground cable comprehensive detection system
  • Underground cable comprehensive detection system

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] A comprehensive detection system for underground cables, such as figure 1 As shown, it includes a high-power signal transmitting device, a loading coil, a signal receiving device and a display and recording device. The radio frequency signal is generated under the control of the transmitting device. After receiving the radio frequency signal, the signal receiving device displays the voltage through the voltmeter and outputs the voltage to the display and recording device. The display and recording device calculates the received voltage and outputs it to the LCD display to display the cable. The buried depth can also be marked on the electronic map at the same time, and the trajectory map of the cable can be obtained. Each part of the system is described below:

[0030] Such as figure 2 As shown, the high-power signal transmitting device includes a ...

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Abstract

The invention relates to an underground cable comprehensive detection system which is technically characterized by comprising a high-power signal emission device, a loading coil, a signal receiving device and a display recording device, wherein an output end of the high-power signal emission device is connected with the loading coil, the loading coil is installed on a cable to be detected in a sleeved mode and produces radio-frequency signals under control of the high-power signal emission device, voltage displaying is carried out and voltage is outputted to the display recorder device after the signal receiving device receives the radio-frequency signals, and the display recording device carries out calculation on the received voltage and then outputs detection results. According to the underground cable comprehensive detection system, design is reasonable, the direct digital frequency synthesis technology is utilized, the high-power radio-frequency power emission technology is combined, control precision of frequency is higher, the frequency is more stable, meanwhile double receiving antennas are utilized to be matched with a receiving circuit, display is carried out on the display recording device, detecting difficulty is reduced, accuracy of detection is improved, and labor intensity of detecting staff is lightened.

Description

technical field [0001] The invention belongs to the technical field of cable detection, in particular to an underground cable comprehensive detection system. Background technique [0002] In the power transmission system, many power cables are buried underground, and these cables may pass through complex terrain or across oceans. When maintaining underground cables, it is necessary to accurately locate, track, identify and sound the underground cables. Although there are line diagrams and a certain number of marks drawn during the construction process, there are inevitably some ambiguities, unknown directions, and Inaccurate places will not only cause a lot of waste of manpower and material resources during the excavation process, but also cause low efficiency, and there will also be digging errors and heavy losses. The existing underground cable detection devices generally have problems such as small detection range, low precision and inconvenient operation. Contents of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/11
Inventor 任树林胡军胡冰陈春江
Owner STATE GRID CORP OF CHINA
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