Digital display instrument reading identification method based on inspection robot

Abstract

The digital display instrument reading identification method based on the inspection robot comprises the following steps: firstly, acquiring a digital display instrument picture through a visible light camera carried by an inspection robot holder and an image video management process; then intercepting an external rectangle of the instrument dial plate as a template image; thirdly, intercepting adigital display area and obtaining position information, segmenting numbers in the digital display area, and recording decimal point digits; 4, obtaining a to-be-detected picture and completing initialization; fifthly, template matching and correction are conducted on the instrument position of the picture to be detected; sixthly, intercepting a digital display area picture to perform gray processing, judging the difference between the foreground font and the background, performing adaptive binarization on the digital display area, performing single digital segmentation on the digital displayarea, and refining the outline of the digital display area; and converting a single number into a pixel for storage, generating a data format required by a classifier, and predicting and outputting aresult. According to the invention, the recognition speed and universality of the intelligent inspection robot for the reading of the digital display instrument in an application scene are improved.

Description

technical field [0001] The invention belongs to the technical field of image processing and recognition, and relates to a digital display instrument reading recognition method based on an inspection robot. Background technique [0002] With the development and breakthrough of robot technology, intelligent inspection robots can already be used in industrial fields such as oil fields, substations, and natural gas plants to monitor on-site operations. Among them, digital display instruments are generally used for various measurements and monitoring on-site. The traditional inspection method is to manually read the instrument and record it manually. However, due to the particularity of the applicable scene and the extreme environment, compared with manual reading, the intelligent inspection robot is more convenient and accurate for the reading of the digital display instrument. . By controlling the angle of the PTZ on the robot to obtain the picture of the digital display instr...

AI Technical Summary

Problems solved by technology

[0003] On the one hand, the cost of manual inspection readings and records is high, and the environmental impact makes the safety of inspection personnel unable to be guaranteed. At the same time, there are certain errors in the human eye, resulting in low recognition efficiency and accuracy

On the other hand, due to the complexity of the industrial site scene, the shape of the instrument and the background of each site are quite different, the recognition speed of the existing recognition method is too slow and its versatility is poor. Therefore, it is necessary to develop a robot based on intelligent inspection. The intelligent identification method of digital display instrument has very important significance

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