Instrument recognition method for transformer substation patrol inspection robot

The technology of an inspection robot and an identification method is applied in the field of instrument identification of a substation inspection robot, which can solve problems such as fading of the red pointer, and achieve the effect of speeding up the speed and reducing the amount of calculation.

Inactive Publication Date: 2016-08-31
HANGZHOU SHENHAO TECH
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AI Technical Summary

Problems solved by technology

Because the equipment instrument is exposed to strong outdoor light for a long time, the red pointer will fade seriously or the red feature is not particularly obvious under the backlight condition, so the detection method using the color component feature has great advantages. limitations

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  • Instrument recognition method for transformer substation patrol inspection robot
  • Instrument recognition method for transformer substation patrol inspection robot
  • Instrument recognition method for transformer substation patrol inspection robot

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Embodiment Construction

[0031] See attached picture. The meter recognition method described in this embodiment includes processing the collected information by using the improved SIFT feature matching algorithm to realize meter positioning, and finally identifying the pointer of the meter through fast Hough transform.

[0032] Most of the instruments in the substation are placed in the outdoor environment with strong sunlight. The instrument equipment collected by the inspection robot is usually affected by the environment. The existing recognition algorithm of the pointer instrument is to use the shape characteristics of the instrument panel, through template matching or ellipse, The fitting of the rectangle and the like determines the basic position and area range of the instrument panel in the image. Although the algorithm has certain robustness, it is not applicable to the state images of substation instrumentation equipment collected by inspection robots. This is due to the complex structure of...

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Abstract

The invention discloses an instrument recognition method for a transformer substation patrol inspection robot. The instrument recognition method comprises the steps that: 1) the robot initiates a patrol task and acquires instrument and equipment image information; 2) the acquired information is processed by utilizing an improved SIFT feature matching algorithm, so as to realize instrument positioning; 3) a quasi-Euclidean distance secondary matching algorithm is adopted for matching feature points after completing the extraction of the SIFT feature points; 4) the image information obtained in the step 3) is preprocessed; 5) pointers of instruments are recognized through rapid Hough transform; 6) and instrument scales are recognized and read, and the instrument recognition is completed. The instrument recognition method increases matching accuracy of the feature points, accelerates matching speed, can position the accurate positions of the instruments and equipment in an acquired image more accurately and rapidly in real time, greatly reduces calculation workload of the traditional Hough transform, and accelerates the speed of the pointer extraction.

Description

technical field [0001] The invention belongs to the technical field of image recognition, in particular to an instrument recognition method suitable for a substation inspection robot. Background technique [0002] At present, the daily operation and maintenance of most substations in my country generally adopts the method of manual inspection, using handheld devices or manual meter reading to record the faults of each device in the substation in turn. In order to overcome the problems of large number of inspection equipment, various types of inspection equipment, and high cost of manpower input in the process of manual inspection, some substations have to update power equipment and instruments, and convert the operating status of on-site equipment in substations into digital signals through automated substation systems However, for some traditional substation equipment that is already in high-load operation, it is difficult to fully realize true digitalization due to problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/46G07C1/20
CPCG07C1/20G06V10/462G06F18/22
Inventor 赵发全陈如申黎勇跃
Owner HANGZHOU SHENHAO TECH
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