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Infrared real-time monitoring method for steam pipeline leakage

A steam pipeline, real-time monitoring technology, applied in radiation pyrometry, optical radiation measurement, image enhancement, etc., can solve the problems of inability to detect instantaneous steam leakage in a timely and accurate manner, and the steam leakage detection method is not suitable for dark environments. Accuracy, the effect of speeding up the judgment

Active Publication Date: 2020-07-03
SHENYANG HONGJI ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the purpose of the present invention is to provide an infrared real-time monitoring method for steam pipeline leakage, to at least solve the problem that the existing steam leakage detection method is not suitable for dark environments and cannot detect instantaneous steam leakage in time and accurately

Method used

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Experimental program
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Embodiment Construction

[0035] The present invention will be further explained below in conjunction with specific embodiments, but the present invention is not limited thereto.

[0036] The invention provides an infrared real-time monitoring method for steam pipeline leakage, comprising the following steps:

[0037] S1: Receive the infrared thermal image and temperature parameters of the monitoring area collected by the infrared camera in real time;

[0038] S2: Use the current frame infrared thermal image and temperature parameters to detect whether there is a steam leakage area in the monitoring area. If it exists, execute S3. If it does not exist, return to S1 to continue execution.

[0039] Among them, the steps of using the current frame infrared thermal image and temperature parameters to detect whether there is a steam leakage area in the monitoring area are as follows:

[0040] S21: Perform median filtering on the received infrared thermal image to obtain a denoised image f(x, y) that remove...

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Abstract

The invention discloses an infrared real-time monitoring method for steam pipeline leakage, comprising the following steps: receiving in real time the infrared thermal image and temperature parameters of the monitoring area collected by an infrared camera; using the current frame infrared thermal image and temperature parameters to detect and monitor Whether there is a steam leakage area in the area; judge whether there is a steam leakage area in the position related to the steam leakage area detected in the next frame of infrared thermal image, and if so, send an alarm signal and feed back the position information of the steam leakage area in the relevant position , until the judgment of all relevant positions is completed. The infrared real-time monitoring method for steam pipeline leakage considers the correlation degree of the target in the front and rear frame pictures, and uses the target tracking method to associate the coordinates of the suspected target area in the next frame with the target coordinates of the current frame, which can speed up the next frame of pictures. The speed of judging whether there is steam in the medium, and through the joint judgment of two frames, the accuracy of steam leakage judgment is improved.

Description

technical field [0001] The invention relates to the field of steam leakage detection, and in particular provides an infrared real-time monitoring method for steam pipeline leakage. Background technique [0002] Pipeline leak detection is mostly aimed at deep-buried pipelines, and generally uses acoustic wave detection methods and non-real-time monitoring. Most of the inspections for indoor pipeline leakage problems are carried out by human-operated portable instruments. This method has poor real-time performance and is easy to miss. Chinese invention patent CN201711423014 proposes a method for detecting gas leaks using dual vision fusion of a robot equipped with a visible light camera and a thermal imager, which can detect abnormal leaks of steam pipes at inspection points. [0003] However, this method has the following problems: [0004] 1. The steam leakage generated at the flange connection occurs for a short time, and it is easy to miss detection by using the method o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/34G06K9/40G06K9/46G06T7/254G01J5/00
CPCG06T7/254G01J5/00G01J2005/0077G06T2207/10048G06T2207/30232G06V20/52G06V10/30G06V10/267G06V10/40G06V10/467
Inventor 马胤刚张冠男蒋辉王明威
Owner SHENYANG HONGJI ELECTRICAL