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Wireless passive detection system for tension of high-voltage transmission line

A high-voltage transmission line, wireless passive technology, applied in tension measurement and other directions, can solve problems such as uncollected data and no discovery, and achieve the effects of strong anti-electromagnetic interference, anti-bending moment, and high Q value.

Active Publication Date: 2017-11-21
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Wireless passive detection system for tension of high-voltage transmission line
  • Wireless passive detection system for tension of high-voltage transmission line
  • Wireless passive detection system for tension of high-voltage transmission line

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Embodiment

[0042] This embodiment provides a wireless passive detection system for high-voltage transmission line tension, including a tension sensor, a clamping and tension transmission mechanism, and a wireless reader; wherein, the tension sensor is installed on the high-voltage transmission line through the clamping and tension transmission mechanism The place to be detected and connected with the wireless reader signal transmission.

[0043] Further, the tension sensor includes: an elastic body, a substrate, a STW resonator a, a STW resonator b, a pad, and a sensor antenna; wherein:

[0044] The outer surface of the middle section of the elastic body is provided with a square section;

[0045] The substrate is fixed on the square section of the elastic body;

[0046] The STW resonator a and the STW resonator b are orthogonally placed on the substrate;

[0047] The two upper and lower electrodes of the IDT of the STW resonator a are respectively connected to the two upper and lower ...

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PUM

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Abstract

The invention discloses a wireless passive detection system for the tension of a high-voltage transmission line, and the system comprises a tension sensor, a clamping and tension transmission mechanism, and a wireless reader. The tension sensor is installed at a to-be-detected part of the high-voltage transmission line through the clamping and tension transmission mechanism, and is in signal transmission connection with the wireless reader. According to the invention, the system employs a surface transverse wave strain sensitivity theoretical model, integrates the strain sensitivity and a frequency temperature coefficient, and is provided with the dedicated clamping and tension transmission mechanism for measuring the tension of the high-voltage transmission line, wherein the clamping and tension transmission mechanism can be conveniently installed at any detected point on the transmission line, and can prevent the bending moment and torque from affecting the measurement of tension. The wireless reader is used for remotely querying the frequency shift of an STW resonator installed on the transmission line, i.e., obtaining the tension value of a detected point. The wireless reader can be installed on a mobile platform, and can achieve the routing inspection of a surface transverse wave tension sensor at a place which is 10m far.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission line tension detection, in particular to a surface shear wave (STW)-based wireless passive detection system for high-voltage transmission line tension. Background technique [0002] On-line detection of the tension of high-voltage transmission lines in operation, in order to adjust the tower and transmission line when the tension is too large, so that they can work within the safe tension range, is of great significance to ensure the safe operation of the power system. [0003] At present, the methods for detecting the tension of transmission lines mainly include monitoring video observation method and sag detection method. However, these two detection devices are indirect measurements with high cost, and have disadvantages such as unstable operation under harsh conditions, difficult processing of detection data, and low detection reliability. [0004] There are also patents tha...

Claims

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Application Information

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IPC IPC(8): G01L5/04
CPCG01L5/04
Inventor 陈景刘超吉小军
Owner SHANGHAI JIAO TONG UNIV
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