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A converter valve monitoring method and system based on image fusion

A converter valve and image technology, which is applied in the direction of material defect testing, electric radiation detectors, optical testing flaws/defects, etc., can solve the problems of low efficiency and low real-time performance, and achieve high efficiency, high real-time performance and less error-prone Effect

Active Publication Date: 2019-08-06
XUJI GRP +3
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Problems solved by technology

[0007] The purpose of the present invention is to provide a converter valve monitoring method and system based on image fusion to solve the problems of low efficiency and low real-time performance of converter valve equipment monitoring technology in the prior art

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  • A converter valve monitoring method and system based on image fusion
  • A converter valve monitoring method and system based on image fusion
  • A converter valve monitoring method and system based on image fusion

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the real-time mode of the present invention is not limited thereto.

[0032] The infrared image is a radiation image, and there are targets that cannot be observed in the visible light image, which can better reflect the target with a large temperature difference from the background, but the details are not obvious; the visible light image is a reflective image, and the background environment texture is rich. It better reflects the details of the scene, but the contrast is relatively low when the illumination is poor. The fusion of infrared images and visible light images can combine the characteristics of the target in the infrared image and the rich background information in the visible light image, effectively synthesize and mine their respecti...

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Abstract

The invention relates to a converter valve monitoring method and system. The method includes the steps of divides a converter valve assembly into zones, screening out an over temperature zone according to an infrared image of each zone, and performs the pixel weighted fusion processing of a visible light image and the infrared image with respect to the over temperature zone to obtain a fused image. The method does not need to improve the resolution of an infrared detector and can effectively reduce the cost so as to quickly identify an abnormal over temperature specific location and surface features of a converter valve. Meanwhile, the method is capable of automatic processing through a computer without too much human participation, and is not prone to error, high in efficiency and high in real-time performance. Moreover, the method and system of the invention can keep rich scene information and provide timely monitoring and early warning for the safe and stable operation of a converter valve device.

Description

technical field [0001] The invention belongs to the technical field of ultra-high voltage direct current transmission, and in particular relates to a method and system for monitoring a converter valve based on image fusion. Background technique [0002] HVDC transmission has a history of many years in our country. With the continuous improvement of DC transmission technology and the incomparable superiority of AC system in many aspects, DC transmission has become more and more accepted by people. With the rapid development of power electronics technology and microelectronics technology, the advent of high-voltage and high-power thyristors, thyristor converter valves and microcomputer control technology have been widely used in direct current transmission projects, which have effectively improved the operating performance and reliability of direct current transmission, and promoted Development of direct current transmission technology. [0003] As the core equipment in the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/10G01N21/95G01N25/72
CPCG01J5/10G01N21/95G01N25/72
Inventor 魏卓董朝阳陆启宇杨青波梁鹏飞柴卫强赵小虎华蕾
Owner XUJI GRP