Power transmission line galloping monitoring method on basis of monocular vision analysis method

Abstract

The invention discloses a power transmission line galloping monitoring method on the basis of a monocular vision analysis method. According to the power transmission line galloping monitoring method, in the first step, system hardware to be monitored is selected; the system hardware comprises a laser distance measuring instrument, an industrial camera, a laptop, a tripod and a common video cassette recorder; the laser distance measuring instrument is used for measuring a distance, an elevation angle and a line included angle. The method disclosed by the invention implements accurate monitoring on line galloping by analyzing a line galloping video shot in the field and combining corresponding calibration parameters.

Description

technical field [0001] The invention relates to the field of electric power monitoring, in particular to a monitoring method for galloping of transmission lines. Background technique [0002] A variety of disasters and accidents will occur due to natural conditions during the operation of overhead transmission lines, and galloping is one of the more serious hazards. Galloping means that under certain natural conditions, the wire is covered with ice to form an asymmetrical circular section, and a low-frequency, large-amplitude self-excited vibration is generated under the action of the wind. [0003] Galloping is manifested in vibration form with only one or a few half-waves within a span. The occurrence of galloping in transmission lines usually depends on three factors: uneven icing of conductors, wind excitation and line structural parameters. Generally speaking, the following information of galloping lines is very important, and should be observed and recorded as accura...

AI Technical Summary

Problems solved by technology

On the contrary, the cost is reduced, but due to the limited monitoring points, it is impossible to accurately calculate and fit the trajectory of the transmission wire galloping

[0010] 2) Power supply problem. For sensors, power supply is required at the information receiver or sending terminal

One solution is a self-powered storage battery system, that is, to use the mains power supply or directly convert the high-voltage power of the transmission line into the required power supply to charge and discharge the battery; the other is a solar panel charging and discharging power supply system, the power supply system It is an independent self-sufficient power supply system, which is not affected by mains power or transmission line power, but the conversion efficiency of solar batteries is low, the power supply time is short, and it is seriously affected by weather

[0011] 3) For data transmission, there are many kinds of existing transmission technologies, such as wireless transmission, optical fiber transmission, broadband transmission, microwave transmission, etc. Wireless transmission is more common, but data packet loss is easy to occur, and optical fiber transmission is currently used more less, but the data transmission is stable and reliable, and it is almost not affected by electromagnetic interference, the application prospect is broad, but the price is high

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