An electric power inspection method and device for identifying analog pointer instrument readings

Abstract

The invention discloses a power inspection method and device for identifying reading of an analog pointer instrument, and the method comprises the steps: predicting the position of an instrument to bedetected in an image through employing HOG characteristics and an optimized SVM model, and completing the image taking process; and reading the reading of the dial plate by using an SIFT pointer reconstruction method. According to the invention, manpower for analog instrument reading work in a transformer substation is overcome; the method solves the problem that the shooting angle of a camera must be perpendicular to the plane of an instrument panel, solves the problems that the shooting angle of the camera must be perpendicular to the plane of the instrument panel, and the reading of a complex scale instrument or a non-uniform scale instrument is difficult, and has very high robustness for disturbance in different environments and under different illumination conditions.

Description

Technical field [0001] The invention belongs to the field of pointer meters, and more specifically, relates to an electric power inspection method and device for identifying the readings of analog pointer meters. Background technique [0002] In view of the excellent anti-electromagnetic interference ability of analog pointer meters, analog pointer meters have been widely used in power systems. The significance of real-time monitoring of analog instruments in the power system is to discover in time that certain parameters exceed the standard, thereby avoiding the safety hazards and huge economic loss of the entire power system. At present, the main power inspection method is manual inspection. This method is not only inefficient and has a high error rate, but also requires a high cost to train and hire skilled inspection workers. Therefore, the research and development of a device that can locate the analog meter under test and read the number indicated by the meter has become a...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the defects of the prior art, the object of the present invention is to provide a power inspection method and device for identifying the readings of analog pointer meters, aiming to solve the problem of low precision and poor accuracy in the positioning and reading of analog meters in the prior art. Low and weak adaptability make it difficult to identify complex scale instruments

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