Infrared real-time monitoring method for steam pipeline leakage

A steam pipeline and real-time monitoring technology, which is applied in the field of steam leakage detection, 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, so as to improve the accuracy and speed up the judgment speed

Active Publication Date: 2019-03-08
SHENYANG HONGJI ELECTRICAL
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  • Description
  • Claims
  • Application Information

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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 methods are not suitable for dark environments and cannot detect instantaneous steam leakage in time and accurately

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Embodiment Construction

[0035] The present invention will be further explained below in conjunction with specific embodiment, but does not limit the present invention.

[0036] The invention provides a real-time monitoring method for infrared 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 removes part of ...

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Abstract

The invention discloses an infrared real-time monitoring method for steam pipeline leakage, which comprises the following steps of receiving an infrared thermal image and the temperature parameters ofa monitoring area collected by an infrared camera in real-time; using the infrared thermogram and temperature parameters of the current frame to detect whether there is steam leakage area in the monitoring area; judging whether the steam leakage area exists in the position related to the steam leakage area detected in the next infrared thermograph; if the steam leakage area exists, sending an alarm signal out and feeding back the position information of the steam leakage area in the related position until the judgement of all the related positions is completed. The infrared real-time monitoring method for the steam pipeline leakage takes into account the correlation degree of the targets in the front and back frame pictures, by using the method of target tracking, the coordinates of the suspected target area in the next frame are correlated with the coordinates of the target in the current frame, which can accelerate the speed of judging whether the steam exists in the next frame, andthe veracity of judging the steam leakage is improved through the joint judging mode of two frames.

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 on indoor pipeline leakage are carried out with portable instruments operated by humans. This method has poor real-time performance and is easy to miss. Chinese invention patent CN201711423014 proposes a method for detecting gas leaks using a robot equipped with a visible light camera and a thermal imager for dual-view fusion, 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 of rob...

Claims

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Application Information

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Patent Type & Authority Applications(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
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