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Method for automatically judging faults of disconnecting switches

A technology of isolating switches and automatic judgment, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., and can solve problems such as hidden dangers in the safe operation of power equipment

Inactive Publication Date: 2017-05-10
合肥普望电子有限责任公司
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  • Summary
  • Abstract
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Problems solved by technology

However, this method of judging the action of the isolating switch has the following problems: When the main contact of the isolating switch is not in place, the power

Method used

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Examples

Experimental program
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Embodiment Construction

[0017] A kind of isolating switch fault automatic judgment method of this embodiment comprises the following steps:

[0018] S1: collect the state information of the auxiliary contact of the disconnector, the state information of the auxiliary contact includes the open state and the closed state;

[0019] S2: collect visible light image information and infrared image information for each orientation of the isolation switch;

[0020] S3: Perform image grayscale on the visible light image, infrared detection image and template image of the isolating switch;

[0021] S4: Use the improved morphological algorithm to process the infrared detection image and template image, complete the denoising process, and perform contrast enhancement work on the visible image, infrared detection image and template image of the isolation switch;

[0022] S5: Algorithm fusion of the infrared detection image and the visible light image of the disconnector using an improved morphological algorithm; ...

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Abstract

The invention relates to a method for automatically judging faults of disconnecting switches. The method comprises the following steps of: acquiring auxiliary contact state information of a disconnecting switch, wherein the auxiliary contact state information comprises an on state and an off state; acquiring visible light image information and infrared image information, at each direction, of the disconnecting switch; respectively carrying out image processing on visible images, infrared detection images and template images of the disconnecting switch; detecting the edge of the disconnecting switch and the edge of a contact in the infrared fusion images of the disconnecting switch in four directions, so as to obtain coordinates of edge points; and comparing the coordinates of the edge points with the template images to judge whether the disconnecting switch has faults, judge the fault types and report the fault conditions so as to realize the automatic judgement of the faults of the disconnecting switch. The method provided by the invention is simple and convenient and correct in detection, and has the effect of reducing the fault rates of the disconnecting switches.

Description

technical field [0001] The invention relates to the technical field of isolating switches, in particular to an automatic fault judgment method for an isolating switch. Background technique [0002] The isolating switch is a commonly used high-voltage protection device in power equipment. Its main function is to optimize the operating conditions of various high-voltage equipment on the configuration circuit. For example, when the high-voltage equipment in the power system fails, the isolation switch can clearly isolate the fault, so that the power equipment can continue to operate. With the development of high-voltage electrical equipment, the requirements for the accuracy and reliability of the opening / closing action of the isolating switch are getting higher and higher. In the prior art, the power equipment judges the opening / closing action of the isolating switch according to the opening / closing signal fed back by the auxiliary contact of the isolating switch. However, t...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/46G06K9/20G06K9/40
CPCG06V10/143G06V10/30G06V10/44G06F18/22G06F18/25
Inventor 顾孙珺
Owner 合肥普望电子有限责任公司
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