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Overhead transmission line icing state monitoring device and method based on two-dimensional laser radar

A technology of two-dimensional laser radar and state monitoring device, which is applied in measuring devices, overhead installations, circuit devices, etc., can solve the problems of being unable to adapt to long-term icing conditions, too many parameters and formulas, unfavorable engineering applications, etc., and achieve simple installation , a wide range of applications, and the effect of being convenient for engineering applications

Pending Publication Date: 2022-07-08
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Some icing models can only be applied to the calculation of extreme icing conditions;
[0005] 2. There are too many parameters and formulas involved in the calculation of ice thickness in some models, which is not conducive to engineering applications;
[0006] 3. It is difficult to install, and the accuracy is not high, so it cannot adapt to the long-term icing state

Method used

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  • Overhead transmission line icing state monitoring device and method based on two-dimensional laser radar
  • Overhead transmission line icing state monitoring device and method based on two-dimensional laser radar
  • Overhead transmission line icing state monitoring device and method based on two-dimensional laser radar

Examples

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Effect test

Embodiment 1

[0022] Example 1: as figure 2 As shown in the figure, an overhead transmission line icing state monitoring device based on two-dimensional lidar includes a line patrol robot 1, a two-dimensional lidar 2 and a Raspberry Pi 3, and the two-dimensional lidar 2 and the Raspberry Pi 3 are installed on the patrol robot. The two-dimensional laser radar 2 is arranged on the line robot 1 and the two-dimensional laser radar 2 faces the ground 4. The two-dimensional laser radar 2 is electrically connected to the Raspberry Pi 3, and the Raspberry Pi 3 is connected to the host computer; the two-dimensional laser radar 2 is used for timing measurement of the distance to the ground. ; Raspberry Pi is used to collect, store and send radar data; the host computer is used for data communication with the Raspberry Pi and data processing and display; Line patrol robot 1 is used to mount on the transmission line and control the round trip walk,.

[0023] The Raspberry Pi 3 is installed in the fro...

Embodiment 2

[0027] Example 2: as Figure 1-4 As shown in the figure, a monitoring method of an overhead transmission line icing state monitoring device based on two-dimensional lidar is provided. Round-trip motion; two-dimensional lidar realizes the timing measurement of the distance to the ground; Raspberry Pi realizes the collection, storage and transmission of radar data; the remote host computer realizes data communication with the Raspberry Pi and data processing and display; data collection It is collected once every n seconds; alarm information and sag change threshold are set before data collection.

[0028] The processing method of the host computer for the collected data is: under the condition that the transmission line is not covered with ice, turn on the two-dimensional lidar, and adjust the speed of the walking motor of the line-following robot to move on the transmission line at a speed of 0 to 5m / s. For the same position The average value of the distance to the ground is ...

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Abstract

The invention discloses an overhead transmission line icing state monitoring device and method based on a two-dimensional laser radar, the device comprises a line patrol robot, the two-dimensional laser radar and a raspberry Pi, the two-dimensional laser radar and the raspberry Pi are installed on the line patrol robot, the two-dimensional laser radar is arranged towards the ground, the two-dimensional laser radar is electrically connected to the raspberry Pi, and the raspberry Pi is electrically connected with the two-dimensional laser radar. And the Raspberry Pi is connected to the upper computer. According to the invention, global coverage of power transmission line-to-ground distance measurement can be realized; meanwhile, the two-dimensional laser radar is easy to install, and the peripheral structure design of the laser radar enables the laser radar to adapt to outdoor work for a long time; the laser ranging mode also has the advantages of high precision, strong anti-interference capability and the like; moreover, the system has timeliness, and can timely discover potential safety hazards.

Description

technical field [0001] The invention relates to the technical field of monitoring the icing state of overhead transmission lines, in particular to a device and method for monitoring the icing state of overhead transmission lines based on two-dimensional laser radar. Background technique [0002] Transmission lines are the main components of power transmission in the power grid. The normal and safe operation of transmission lines is an important guarantee to avoid major accidents in the power grid, and icing accidents pose a serious threat to the safety of transmission lines. Icing is a serious natural disaster in the power system. Severe icing will lead to a sharp decline in the mechanical and electrical performance of the transmission line, resulting in the collapse of the transmission line, tower collapse, wire galloping, wire breakage (strand), and interphase or ground discharge of the wire. Accidents such as flashover of insulators and insulators will cause power supply ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/88G01S17/08H02J13/00H02G7/16
CPCG01S17/88G01S17/08H02J13/00002H02G7/16Y02A90/10
Inventor 毛先胤陈沛龙彭赤杜昊张伟杨旗黄欢张啟黎牛唯鲁彩江
Owner GUIZHOU POWER GRID CO LTD
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