Computation method of transmission conductor wave amplitude and frequency based on video monitoring technology

Abstract

The invention discloses a computation method of the transmission conductor wave amplitude and frequency based on a video monitoring technology, and belongs to the technology of video image processing. The method specifically comprises the following steps: taking the motion trail of a transmission conductor as a core during the transmission conductor waving, obtaining the transmission conductor wave characteristic by processing video images obtained by a camera and through the lowest and highest wave position maps of a conductor target image subjected to image gray processing, filtering, histogram equalization, segmentation and image matching, and then comprehensively mastering the conductor wave characteristic and the largest wave amplitude within a span through the computation of the transmission conductor wave amplitude and frequency. The method overcomes the detect that the conventional wave monitoring system cannot effectively obtain the conductor wave characteristic and the largest wave amplitude within a span, and ensures that the measurement results are more accurate and effective.

Description

technical field [0001] The invention belongs to the video image processing technology, in particular to a method for calculating the galloping amplitude and frequency of a transmission wire based on the video monitoring technology. Specifically, the movement trajectory of the transmission wire during galloping is the core, and the galloping characteristics of the transmission wire are obtained by processing the video images obtained by the camera, and the galloping characteristics of the wire at any position within the span are obtained through the motion trajectory. technical background [0002] Under the current background of rapid economic development in our country, the whole society has higher and higher requirements for power reliability, and the economic losses caused by power accidents are becoming more and more serious. As an important part of the power grid, the safe operation of the transmission line directly determines the reliability of the power grid operation....

AI Technical Summary

Problems solved by technology

According to different monitoring methods, it can be divided into fixed and portable monitoring equipment: the fixed monitoring device is the galloping online monitoring system. The camera device is fixed at a certain position on the tower to obtain the entire video image of the wire galloping, and the monitoring is obtained by processing the video image. The galloping characteristics of different points within the range; limited by the monitoring range of the camera device, this method can only obtain the galloping form of some wires within the visible range at present, and the wires in the span are long, so it is impossible to obtain the galloping status of the entire span wire. It is also impossible to effectively obtain the galloping severity of the wires within the span

Portable monitoring equipment is to monitor any position of the galloping wire through the camera device carried by the staff, and obtain the galloping behavior of the wire at the monitoring point by analyzing the monitoring image; although the portable device can effectively obtain the galloping behavior of the wire at any position within the span, However, the monitoring of wire galloping depends on manual selection of monitoring points. If the most serious point of galloping cannot be effectively selected for monitoring, the severity of galloping of the wires within the span cannot be obtained.

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