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Wire non-contact real-time time sequence image frame vision measurement device and method

A time-series, non-contact technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of large errors, difficult monitoring, troublesome operation, etc.

Inactive Publication Date: 2017-08-04
WUHAN UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

However, the disadvantages of these two methods are that the measuring instrument is easily disturbed by a strong external electromagnetic field, the operation is troublesome, it is not easy to monitor, and the error is large

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  • Wire non-contact real-time time sequence image frame vision measurement device and method

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Embodiment Construction

[0024] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0025] please see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 , a wire non-contact real-time time series frame visual measuring device provided by the present invention comprises a transmission line 1, a spacer bar 2, a camera mechanism 3, a data processing module 4, and a wireless signal transmitting module 5;

[0026] A spacer 2 is fixedly arranged between the parallel transmission lines 1 to limit the relative movement between the transmission lines 1; the camera mechanism 3 is fixed on the spacer 2 for taking macro video imag...

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Abstract

The invention discloses a wire non-contact real-time time sequence image frame vision measurement device and method. The device includes a transmission lines, a spacer, a camera mechanism, a data processing module and a wireless signal emission module; the spacer is fixedly arranged between the transmission lines and is used for limiting relative motion between the transmission lines; the camera mechanism is fixed on the spacer and is used for shooting a microspur video image; and the data processing module processes the microspur video image shot by the camera mechanism and sends a processing result to a ground monitoring center through the wireless signal emission module. The wire non-contact real-time time sequence image frame vision measurement device first performs real-time evaluation on the state of a wind load and calculates shape factors of the transmission lines and an included angle between the wind load and a wire direction, a calculation formula of the wind load is utilized to calculate the wind load, then modal analyses of the transmission lines are made, shape finding of the transmission lines under the action of the wind load and a gravity load, an image algorithm is utilized to obtain distribution of stress on a wire, finally, a comparison with a stress critical value is made, and an early warning mechanism is established.

Description

technical field [0001] The invention belongs to the technical field of power transmission wire monitoring, and in particular relates to a non-contact real-time time series frame visual measurement device and method for wires. Background technique [0002] External loads on transmission towers include wind loads, earthquake loads, snow loads, and ice loads. In most cases, the wind load is its control load, while the influence of other loads is relatively small. In recent years, there have been frequent reports of transmission towers being blown by strong winds due to insufficient design strength. The reason for the damage of the transmission tower line system is that in addition to the problems in material, metal quality, construction quality, etc., the designers still have insufficient understanding of the dynamic response characteristics of the transmission tower line system under the action of wind load. [0003] At present, the tension sensor is mainly installed on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02
CPCG01B11/022
Inventor 王若林朱道佩桑农
Owner WUHAN UNIV
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