A method and system for calculating ice thickness of transmission lines based on high-definition images

Abstract

The invention discloses a high-definition-image-based calculation method and system for icing thickness of a transmission line. The method comprises: step one, obtaining a real-time image including a lead and a ground wire of a transmission line; step two, measuring a thickness ratio of a lead to a ground wire in a real-time image at a same scene and determining an icing degree of the ground wire preliminarily; and step three, according to diameter specifications of the lead and ground wire of the transmission line and a practically measured thickness ratio value, obtaining an icing thickness value by using an improved standard ice thickness calculation module. According to the method and system disclosed by the invention, the manual ice observation result is perfected; an error between the manual ice observation result and the practical icing situation can be reduced; the manual ice observation accuracy can be improved; and an accurate information support is provided for de-icing decision making.

Description

technical field [0001] The invention relates to the field of ice coating monitoring of power transmission lines, in particular to a method and system for calculating the thickness of ice coating of power transmission lines based on high-definition images. Background technique [0002] Icing of transmission lines is a major threat to the safe operation of the power grid. Serious icing will cause huge economic losses. Therefore, it is necessary to do a good job in monitoring and early warning of ice and snow on transmission lines in ice-covered areas, so as to eliminate icing accidents in the bud and ensure Safe operation of lines in ice-covered areas. At present, artificial ice observation plays an important role in anti-icing and anti-icing work as the main means of line ice monitoring. However, in practical applications, artificial ice observation has the following four problems: [0003] (1) The low visibility on site affects the results of artificial ice observation. Th...

AI Technical Summary

Problems solved by technology

Second, there is no current passing through the simulated wire, and there is no thermal effect

In general, the model of the simulated wire is the same as that of the tower wire, but the running wire will have a thermal effect due to the current passing through it, and the icing process may be different from the simulated wire

[0005] (3) The temperature difference between the height of the tower and the foot of the tower is large

This phenomenon has brought certain difficulties to artificial ice observation.

[0006] (4) Ice measurement by falling ice samples is not standardized

However, in the process of measuring ice by dropping ice samples, due to the lack of guidance from relevant technical specifications, there are certain misunderstandings in the measurement method

If the ice thickness of the dropped ice sample is still measured by the long and short diameter method or the weighing method, the ice measurement result is too small; The ice results are not representative; the falling ice sample is not measured in time, and the measurement is carried out 1 to 2 days after the ice sample is dropped, etc.

Images