Stereo space monitoring and rapid distance measurement method of powder transmission line channel

Abstract

The invention provides a stereo space monitoring and rapid distance measurement method of a powder transmission line channel. The stereo space monitoring and rapid distance measurement method comprises the steps that a binocular vision system is calibrated to obtain binocular vision system internal and external parameters, powder transmission line feature points are matched, three-dimensional reconstruction is conducted on the matched powder transmission line feature points by utilizing the calibrated binocular vision system internal and external parameters, three-dimensional coordinates of the reconstructed feature points are utilized to establish a powder transmission line space equation, then a powder transmission line stereo monitoring area model is established through the powder transmission line space equation and a planer monitoring area, the minimum distances from monitoring area space points to the powder transmission line space equation are calculated, accordingly a monitoring space point-minimum distance database is established, finally whether foreign matter is involved or not can be judged by conducting three-dimensional reconstruction on foreign matter feature points and directly utilizing the database, and the distance between the foreign matter and a powder transmission line is obtained. By adopting the method, the real-time operating amount of later three-dimensional reconstruction and spatial distance measurement can be greatly decreased through earlier-stage establishment of the three-dimensional space point database and the model of the corresponding space distance relation, and an effective guarantee is provided for real-time monitoring of the powder transmission line.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to a three-dimensional space monitoring and fast ranging method for transmission line channels. Background technique [0002] Electric power is an important basic industry of the country, and the stability and security of power supply is the prerequisite for ensuring the stable and rapid development of a country. In the national grid, transmission lines are generally located in complex and remote environments, and it is very important to ensure the safety of transmission lines. For a long time, relevant departments have believed that the operation and maintenance of transmission line channels is mainly a management issue. They usually use methods such as manual squatting and crowd protection to manage the operation and maintenance. This method not only consumes a lot of manpower and material resources, but also has unsatisfactory results. At present, monitoring equipment such a...

AI Technical Summary

Problems solved by technology

For a long time, relevant departments have believed that the operation and maintenance of transmission line channels is mainly a management problem, and usually use methods such as manual squatting and crowd protection to manage the operation and maintenance. This method not only consumes a lot of manpower and material resources, but also has unsatisfactory results

At present, monitoring equipment such as video and radar are installed on towers, and hidden dangers that endanger transmission lines are detected by manually identifying the collected data. However, the accuracy and reliability of these methods cannot be guaranteed, which is not conducive to popularization and application.

[0003] With the development of image processing, machine vision technology based on automatic machine recognition has been widely used. However, traditional machine vision systems based on video surveillance are prone to misjudgment due to the loss of depth information in the process of light information collection into video.

Images