A digital instrument recognition method for electric power inspection robot
A digital meter and power inspection technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of increasing difficulty of digital meter recognition, lack of universality of digital recognition, and great influence of environmental factors, etc. Achieve high digital recognition accuracy, low image preprocessing requirements, and strong robustness
Active Publication Date: 2021-04-20
润咖(上海)智能科技有限公司
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Problems solved by technology
It does not have the versatility of all kinds of instruments and various digital recognition, and the environmental factors have a great influence
Especially under the joint influence of lighting factors, shadow factors, image blurring, etc. in the environment, the difficulty of digital instrument recognition is increased, and lighting noise will have a great impact
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[0081] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, and Not all examples.
[0082] A digital instrument detection method for an electric power inspection robot, such as figure 1 As shown, including the machine training preparation stage and the digital instrument recognition stage, the specific steps are as follows:
[0083] (1) Manually select a clear template image and grayscale it, such as figure 2 As shown in the figure, manually read the instrument equipment number, manually calibrate and segment a single digital area, and record the corresponding parameters.
[0084] (2) Read an image and turn it into gray scale, match and align with the template image template, and...
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The invention relates to the technical field of image processing of electric power equipment, and in particular designs a digital instrument recognition method for a power inspection robot. The method includes a machine training preparation stage and a digital meter recognition stage, the preparation stage includes standardizing the image set, and obtaining the optimal feature set according to the image set by feature engineering training; the formal stage of digital meter recognition includes image preprocessing, template Match and align, segment to obtain a single digital image, extract the optimal feature set features of a single digital image, use ten support vector machine regressors to identify the probability of each number, and the highest probability is the number recognition result. The characteristics of this method are: high digital recognition accuracy, high versatility of various digital instruments, low requirements for image preprocessing, and strong robustness to environmental factors such as lighting and shadows.
Description
technical field [0001] The invention relates to the technical field of image processing of electric power equipment, and in particular designs a digital instrument recognition method for a power inspection robot. Background technique [0002] In the electric system, the digital meter has the extensive application. In substations, real-time monitoring of instrument readings is required to prevent accidents caused by some parameters exceeding the standard. The current inspection method is mainly manual inspection. The efficiency of manual inspection readings is low, the error is large, and the risk is high. Therefore, it is necessary to invent a method for obtaining images by inspection robots and using efficient image processing technology to obtain meter readings, so as to improve efficiency and ensure the safe operation of the power system. [0003] The intelligent inspection robot inspects various instruments according to the pre-set inspection route, mainly by taking v...
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IPC IPC(8): G06K9/32G06K9/46G06K9/62
CPCG06V20/63G06V10/462G06F18/2411G06F18/214
Inventor 吕青松唐云丰施宇星贾晨昱邓力
Owner 润咖(上海)智能科技有限公司