State identification method, device, equipment and temperature measurement method for disconnecting switchgear

A technology for isolating switch and state recognition, which is applied in measuring devices, character and pattern recognition, optical radiation measurement, etc., can solve the problems of indiscriminate opening and closing of isolating switch equipment, and inability to judge the use status of isolating switch equipment, so as to improve accuracy sexual effect

Active Publication Date: 2022-03-04
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a state recognition method, device, equipment and temperature measuring method of a disconnector switch device, which are used to solve the problem that the separation and closing state of the disconnector switch device cannot be distinguished in the existing infrared temperature measurement process for the disconnector switch device. The technical problem of accurately judging the use status of the isolating switchgear according to the detected temperature

Method used

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  • State identification method, device, equipment and temperature measurement method for disconnecting switchgear
  • State identification method, device, equipment and temperature measurement method for disconnecting switchgear
  • State identification method, device, equipment and temperature measurement method for disconnecting switchgear

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Embodiment 1

[0048] figure 1 It is a flow chart of the steps of the method for identifying the state of the disconnecting switchgear described in the embodiment of the present invention.

[0049] like figure 1 As shown, the embodiment of the present invention provides a method for identifying the state of an isolating switchgear, including the following steps:

[0050] S10. Obtain the infrared image of the disconnecting switch device, and mark the positions of the joints at both ends of the disconnecting switch device on the infrared image to obtain the joint position;

[0051] S20. Extracting corresponding temperature points from the pixels of the infrared image to generate a template image and an image grayscale image;

[0052] S30. Extracting an image corresponding to the joint position in the template image as the target image, extracting a search window image corresponding to the target image in the image grayscale image, and calculating an NCC value between the target image and the...

Embodiment 2

[0076] image 3 It is a flow chart of the steps of the temperature measurement method for the isolating switchgear described in the embodiment of the present invention, Figure 4 It is a connecting rod diagram of the temperature measuring method of the isolating switchgear described in the embodiment of the present invention.

[0077] like image 3 As shown, the embodiment of the present invention also provides a method for measuring the temperature of the isolating switchgear, which is applied to the inspection robot of the substation, including the following steps:

[0078]S1. Using the above-mentioned method for identifying the state of the isolating switch device, it is obtained that the isolating switch device to be tested is in the closing state;

[0079] S2. Obtain the temperature image of the isolating switch device to be tested by infrared temperature measurement, and extract the connecting rod and the pixel points of the joints at both ends of the isolating switch ...

Embodiment 3

[0085] Figure 5 It is a frame diagram of the state identification device of the disconnecting switchgear described in the embodiment of the present invention.

[0086] like Figure 5 As shown, the embodiment of the present invention also provides a state recognition device for a disconnector switchgear, including an image acquisition module 10, an image processing module 20, a calculation module 30, a connecting rod generation module 40, a numerical value acquisition module 50 and a state recognition module 60;

[0087] An image acquisition module 10, configured to acquire an infrared image of the disconnecting switch device, and mark the positions of the joints at both ends of the disconnecting switch device on the infrared image to obtain the joint position;

[0088] Image processing module 20, is used for extracting corresponding temperature point from the pixel point of infrared image, generates template image and image gray scale image;

[0089] Calculation module 30, ...

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Abstract

The invention relates to a state recognition method, device, equipment and temperature measuring method of a disconnector switch device. The infrared image of the disconnector switch device is used to mark the positions of the joints at both ends of the disconnector switch device, and then the infrared image is processed to obtain a template Image and image grayscale image, get the target image and search window image on the template image and image grayscale image and calculate the NCC value, only if the NCC value is greater than the set threshold, find the connectors at both ends of the isolating switch device in the image grayscale image and Connect to form a connecting rod, extract the image in the connecting rod area in the image grayscale image and perform binarization processing to obtain a binarized image, obtain the values ​​of all pixels on the connecting rod in the binarized image, according to the value Whether it is greater than the set pixel threshold is used to judge whether the isolating switch device is in the closing or opening state, so as to realize the identification of the state of the isolating switch device.

Description

technical field [0001] The invention relates to the technical field of temperature detection of an isolating switch, in particular to a state identification method, device, equipment and temperature measuring method of an isolating switch equipment. Background technique [0002] The isolating switch is a switching device that is mainly used to "isolate power supply, switch operation, connect and cut off small current circuits", and has no arc extinguishing function. When the isolating switch is in the off position, there is an insulation distance between the contacts that meets the specified requirements and an obvious disconnection mark; when the isolating switch is in the closed position, it can carry the current under normal circuit conditions and abnormal conditions (such as short circuit) within a specified time under the current of the switching device. The isolating switch with a rated voltage above 1kV is generally used as a high-voltage isolating switch. Its workin...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G06V20/10G06V10/28G06V10/44G06F16/583G06F16/532G01J5/00G01R31/327
CPCG06F16/532G06F16/583G01J5/0096G01R31/327G01J2005/0077G06V20/10G06V10/28G06V10/457
Inventor黄炎王柯钟力强苏启奖李文胜麦晓明吴昊
OwnerGUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD