Digital display instrument identification method suitable for substation inspection robot

An inspection robot and digital display technology, applied in character and pattern recognition, instruments, image data processing, etc., can solve the problems of large size, cumbersome, and high cost of robots, and achieve the effect of small size, flexible action, and promotion of development.

Inactive Publication Date: 2018-09-25
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For example, the substation intelligent inspection robot of Shandong Luneng Group, the infrared thermal imager intelligent robot of Shanghai Pumeng Optoelectronics, and the substation inspection robot of Hangzhou Shenhao, etc., but without

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  • Digital display instrument identification method suitable for substation inspection robot
  • Digital display instrument identification method suitable for substation inspection robot
  • Digital display instrument identification method suitable for substation inspection robot

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0042] see figure 1 , a digital display instrument recognition method suitable for substation inspection robots, the steps include:

[0043] (1) Locate the digital area

[0044] For the original image collected by the inspection robot, a custom threshold segmentation method based on the characteristics of the digital display instrument is adopted, that is, the number displayed by the digital display instrument is red or blue, which is quite different from the pixel value of the surrounding area, so set A threshold range is used to determine the possible position of the digital display instrument, and then the image is processed and white is used to represent the position of the digital display instrument, and black represents the background, and finally all possible target areas of the digital display instrument can be screened out.

[0045] (2) Extract contour

[...

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Abstract

The invention discloses a digital display instrument identification method suitable for a substation inspection robot. The method comprises the steps that a digital area is located; all target areas of a digital display instrument are screened; the minimum circumscribed rectangle of the target areas is extracted; rectangular areas are screened; the remaining rectangular areas are all taken out asdigital areas to be identified; and finally, character identification is carried out after preprocessing. According to the invention, an image collected by the indoor small inspection robot can be quickly processed; the indications of various digital instruments are converted into numbers, and the numbers are transmitted to a background server in real time through the network function of the inspection robot; and digital display instrumentation in a control room of a substation can be remotely monitored.

Description

technical field [0001] The invention belongs to the field of inspection of substation equipment, and in particular relates to a digital display instrument recognition method suitable for a substation inspection robot, which can be used for data collection of indoor digital display instruments by the substation inspection robot. Background technique [0002] At present, the equipment inspection work of substations in my country generally adopts the method of manual inspection and manual recording. With the expansion of substation scale, the inspection area continues to increase, and the operating environment becomes more complex, which makes the inspection scope and workload of substation on-site equipment change. Large, simply relying on the senses and experience of inspectors, it is difficult to achieve comprehensive and accurate inspections, resulting in hidden dangers in the safe operation of equipment and power grids. [0003] With the development and maturity of robot te...

Claims

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Application Information

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IPC IPC(8): G06K9/34G06K9/62G06T5/00G06T7/11G06T7/136
CPCG06T5/002G06T7/11G06T7/136G06T2207/20032G06V30/153G06F18/2411
Inventor 王晓东魏成保冯海荣李鹏程郭堃杨瑾刘宝明刘诚张剑
Owner STATE GRID CORP OF CHINA
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