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

A technology for instrument reading and power inspection, applied in the field of pointer instruments, can solve problems such as difficulty in identifying complex scale instruments, weak adaptability, and low precision, and achieve the goal of overcoming poor anti-interference ability, accurate reading results, and good robustness Effect

Inactive Publication Date: 2019-05-03
HUAZHONG UNIV OF SCI & TECH
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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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  • An electric power inspection method and device for identifying analog pointer instrument readings
  • An electric power inspection method and device for identifying analog pointer instrument readings
  • An electric power inspection method and device for identifying analog pointer instrument readings

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Embodiment Construction

[0045] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0046] figure 1 The method for identifying the analog meter readings of the power inspection robot based on HOG-SVM target classification detection and SIFT plane pointer reconstruction provided by the present invention specifically includes the following steps:

[0047] S1, preparation work: (1) Calibrate the pixel position P(x, y) of the imaging center of the camera; (2) Select and measure the actual length H of a certain object, and the distance between the camera and the instrument to be measured remains unchanged and the original focal length of the camera Under the condition of unchanged, ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06K9/46G06K9/62G06K9/66G07C1/20
Inventor 黄剑王浚哲晏箐阳周铭肖华
Owner HUAZHONG UNIV OF SCI & TECH
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