Image type knife switch in-place monitoring system and method

Abstract

The invention discloses an image type knife switch in-place monitoring system and method. The monitoring system consists of a reflective marker, a light source, a lens, a camera, a protective mechanism, transmission cables and a computer. The reflective marker is arranged on a moving part of a knife switch and moves along with the knife switch. The light source, the lens and the camera are all arranged inside the protective mechanism and near the knife switch. The reflective marker is illuminated by the light source; the knife switch including the reflective marker is imaged onto an image surface of the camera through the lens; the obtained image is transmitted into the computer; and after the image is processed, whether the knife switch is in place and contacted reliably is finally judged. By adoption of a non-contact image measuring principle, whether the contact is reliable can be judged simultaneously when whether the knife switch is in place is judged. Meanwhile, the image type knife switch in-place monitoring system is strong in interference resistance, convenient to install, water-proof and dust-proof, applicable to knife switches of any specifications and types, excellent in universality, and widely applied to knife switch monitoring in various smart substations.

Description

technical field [0001] The invention relates to a knife switch in-position monitoring system and a detection method, in particular to a knife switch in-position monitoring system and method based on computer vision and retroreflection technology. Background technique [0002] At present, whether the knife switch is in place or not is mostly done by means of manual on-site observation with a telescope and judgment by a supervisor. This method is time-consuming, laborious, inefficient, and easily subject to the observer's subjective influence. [0003] The existing automatic detection method of knife switch can be divided into two types according to the different detection parts: direct measurement (the measurement part is at the contact point position) and indirect measurement (the principle contact point position of the detection part), and can be divided into two types according to the detection parameters. Temperature measurement method (measuring the temperature rise of ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the status quo of the existing knife switch monitoring technology, the present invention proposes an image-type knife switch in-position monitoring system and method, adopts active lighting and retroreflection technology, and realizes the non-contact online monitoring of the knife switch in place and contact, so as to meet various In-place monitoring requirements for formal knife gates

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