Online appearance detection method for power meter

A technology for appearance inspection and electric energy meter, which is applied in measurement devices, image analysis, image enhancement, etc., can solve the problem of high misjudgment rate, reduce the misjudgment rate, improve matching efficiency, and save manpower and material resources.

Active Publication Date: 2015-09-09
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0004] In view of the above problems, the present invention provides a method for on-line appearance inspection of electric energy meters, which is suitable for on-line appearance inspection of large-scale intelligent electric energy meter automatic verification system, which not only improves the production efficiency of appearance inspection, saves manpower and material resources, but also effectively solves errors. The problem of high judgment rate

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  • Online appearance detection method for power meter
  • Online appearance detection method for power meter
  • Online appearance detection method for power meter

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Embodiment Construction

[0029] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0030] A method for online appearance detection of electric energy meters, such as figure 1 described, including the following steps:

[0031] S01: Scan the meter barcode of the electric energy meter in the automated assembly line, and judge whether there is a standard template in the template library according to the scanned meter barcode information. If there is a standard template, go to step S02, otherwise go to step S05;

[0032] S02: In the automatic verification line, when the electric energy meter flows to the appearance detection module, the image acquisition device takes pictures of the lit LCD screen to obtain real-time online pictures ...

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Abstract

The present invention discloses an online appearance detection method for a power meter. The method is applicable to a large-scale smart power meter automatic detection system. During the appearance detection, a self-learning profile library is established, thereby eliminating the impact on the detection error due to the image grey value difference caused by the differences of external conditions (light irradiation, air and dust) and the liquid crystal screen technique, and effectively reducing the misjudgment rate. By employing the self-learning profile matching algorithm based on adaptive threshold SSDA, calculation for the non-matched point is quickly terminated, thereby saving the matching time, improving the matching efficiency, improving the yield of the appearance detection, saving manpower and material resources, and further effectively solving the problem of high misjudgment rate.

Description

technical field [0001] The invention relates to a method for online appearance detection of an electric energy meter. Background technique [0002] The appearance of the smart energy meter must be inspected in accordance with the standard requirements of the State Grid Corporation of China before installation and use, so as to ensure the safe and reliable operation of the smart energy meter. In the prior art, the smart energy meter uses LED liquid crystal screen technology to display data, making the data more intuitive and accurate, and the displayed data almost contains all the information needed by power users and power supply companies. However, during the transportation and storage of the smart energy meter, due to vibration, humid environment and poor contact of internal lines, etc., the LCD screen of the smart energy meter will have broken screens, black screens, blurred screens, garbled characters, missing characters, and signal lights. Not bright and other issues. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G01N21/892
CPCG01N21/892G06T7/30G06T2207/10004
Inventor 宋瑞鹏蔡奇新王忠东刘建李纬苏慧玲邵雪松冯泽龙
Owner STATE GRID CORP OF CHINA
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