Large-span line multi-parameter monitoring device and monitoring method

A monitoring device and multi-parameter technology, applied in the field of monitoring, can solve problems such as lack of synchronous wind field monitoring, and achieve the effect of synchronously monitoring wind speed

Pending Publication Date: 2021-07-23
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the existing technology that the monitoring variables are mainly acceleration, displacement, etc., lack of synchronous wind field monitoring, and the continuous monitoring duration of the ground wire breeze vibration, which is limited by the power consumption of the system and the means of energy harvesting, the short-term monitoring is the main problem. The invention provides a multi-parameter monitoring device for large-span lines, including:

Method used

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  • Large-span line multi-parameter monitoring device and monitoring method
  • Large-span line multi-parameter monitoring device and monitoring method
  • Large-span line multi-parameter monitoring device and monitoring method

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Experimental program
Comparison scheme
Effect test

Embodiment 2

[0067] A multi-parameter monitoring method for long-span lines, such as Figure 6 shown, including:

[0068] Collect data by the wind speed sensor 4 fixed on the outside of the shell and the data acquisition device located inside the shell;

[0069] The data processing module located inside the shell operates on the collected data to obtain the evaluation result of breeze vibration.

[0070] Preferably, the data processing module located inside the shell operates on the collected data to obtain the breeze vibration evaluation result, and uploads the evaluation result to the server, including:

[0071] The CPU calculation unit of the data processing unit calculates the wire amplitude, dynamic bending strain, wind speed and vibration frequency according to the data collected by the wind speed sensor 4 and the acceleration sensor 8;

[0072] The communication unit of the data processing unit transmits the conductor amplitude, dynamic bending strain, wind speed and vibration fre...

Embodiment 3

[0084] Such as Figure 1-5 As shown, a multi-parameter monitoring device for a long-span line, the device consists of an upper casing 1 connected by a hinge, a lower casing 2, a solar panel 3, an impeller wind speed sensor 4, a microstrip antenna 5, and a movable snap ring 6. It consists of a fixed snap ring 7, an accelerometer 8, a main control circuit board 9, a battery module 10, and a temperature sensor 11.

[0085] The casing is composed of an upper casing 1 and a lower casing 2, the casing material is anodized aluminum, the upper casing 1 and the lower casing 2 are connected by a hinge, and the outer surface is chamfered and smoothed to reduce corona.

[0086] A solar panel 3 , an impeller wind speed sensor 4 and a microstrip antenna 5 are installed on the top of the upper casing 1 of the device.

[0087] The lower housing 2 of the device is provided with a fixed snap ring 7 and a movable snap ring 6. The movable snap ring is an arched structure separated up and down, ...

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Abstract

The invention provides a long-span line multi-parameter monitoring device and monitoring method. The long-span line multi-parameter monitoring device comprises a shell, a wind speed sensor (4) which is fixed outside the shell, and a data acquisition device and a data processing module which are positioned inside the shell. The data processing module is respectively connected with the wind speed sensor (4) and the data acquisition device, and is used for calculating the data acquired by the wind speed sensor (4) and the data acquisition device to obtain an aeolian vibration evaluation result and uploading the evaluation result to a server. According to the technical scheme provided by the invention, the data acquisition device and the wind speed sensor are arranged in one device, so that synchronous monitoring of wind speed and aeolian vibration is realized.

Description

technical field [0001] The invention relates to the monitoring field, in particular to a multi-parameter monitoring device and a monitoring method for a long-span line. Background technique [0002] The amplitude of breeze vibration of long-span lines exceeds the warning value, which can easily lead to fatigue damage of line components, such as fatigue damage or wear of ground wires, fittings, spacers, and tower components. In particular, the continuous increase of conductor cross-section, tension, suspension point height and span of long-span lines has greatly increased the vibration energy of the wind to the ground wire, and the vibration intensity is far higher than that of ordinary lines. Breeze vibration is characterized by high-frequency and small-amplitude vibration, and the line damage caused by it has a certain degree of concealment, and it is difficult to be discovered during line operation and maintenance. It is usually discovered after the line is worn or even f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G01R31/08
CPCG01D21/02G01R31/081
Inventor 李丹煜李孟轩刘彬程永锋马潇白旭
Owner CHINA ELECTRIC POWER RES INST
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