A Real-time Monitoring and Prediction Method of Transmission Conductor Galloping Based on Video Analysis
A technology for power transmission wire and video analysis, applied in forecasting, electrical digital data processing, special data processing applications, etc., can solve the problems of inability to realize wire galloping, predictive analysis, insufficient to fully reflect the characteristics of wire galloping state, etc.
Inactive Publication Date: 2017-03-22
STATE GRID CORP OF CHINA +2
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However, the existing research schemes that only analyze two-dimensional images of conductor galloping have limited actual measurement results, which are not enough to fully reflect the state characteristics of conductor galloping, let alone predict and analyze future conductor galloping conditions.
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[0060] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0061] A method for real-time monitoring and prediction of galloping of transmission wires based on video analysis proposed by the present invention includes the following steps:
[0062] (1) Collect the original image: use the video camera installed on the tower to collect the original image before the transmission wire dances; use the monitoring terminal to collect the micro-meteorological data at that time; and send the above data back to the monitoring center for storage through the transmission channel. as the original comparison data;
[0063] (2) Perform image processing on the original ima...
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The invention discloses a method for monitoring and predicting galloping of a transmission line in real time based on video analysis, which comprises the following steps of collecting an original image; carrying out image processing on the original image at a monitoring terminal, identifying characteristic target points, which are obtained after processing the original image, on the transmission line automatically, and acquiring position coordinates of the target points; analyzing the pre-processed image, acquiring position coordinates of the target points of the transmission line, and calculating the icing thickness of the line; calculating the number of continuous images between adjacent maximum values or minimal values according to vertical coordinates of the target points of continuous image files, and calculating the galloping frequency of the line according to the time interval of two adjacent images; and carrying out simulating and predicating analysis on the galloping condition of the transmission line in future. The method disclosed by the invention analyzes the galloping condition of the transmission line by using video image technologies, thereby avoiding installation of a large amount of hardware sensors on the transmission line, saving the expenditure of hardware, reducing extra hardware maintenance workload, and being convenient to manage.
Description
technical field [0001] The invention belongs to the technical field of transmission line operation and maintenance, in particular to a method for real-time monitoring and prediction of galloping of transmission wires based on video analysis. Background technique [0002] Galloping of transmission lines refers to a low-frequency (about 0.1-3Hz) and large-amplitude (approximately 1 / 2 of the diameter of the wire) produced by the wire when the wind acts on the transmission wire with a non-circular cross-section due to ice coating under certain conditions. 5 to 300 times) self-excited vibration phenomenon. When the wire gallops, the vibration peak value can usually reach more than 10 meters, so that it is easy to cause phase-to-phase flashover, damage to hardware, cause line tripping and power failure, or cause serious accidents such as burnt wires, tower collapse, wire breakage, etc., resulting in major economic losses. [0003] The research literature on the galloping phenomen...
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Login to View More IPC IPC(8): G06F17/00G06Q10/04G06K9/60
Inventor游文霞谢学平任乔林杨帆马玉新周云海胡翔勇粟世玮
OwnerSTATE GRID CORP OF CHINA