Heat source detection method and system based on infrared thermal imager and storage medium

A technology of infrared thermal imager and detection method, which is applied in the direction of fire alarms that rely on radiation, can solve the problems of short detection distance, unguaranteed recognition accuracy, and complicated engineering implementation, so as to accurately identify heat sources and reduce errors. Effects of under-reporting and under-reporting

Active Publication Date: 2019-06-04
广州紫川物联网科技有限公司
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  • Claims
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Problems solved by technology

[0012] However, the current heat source/fire detection system commonly used above has a relatively fixed application environment, complex engineering implementation, high co

Method used

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  • Heat source detection method and system based on infrared thermal imager and storage medium
  • Heat source detection method and system based on infrared thermal imager and storage medium
  • Heat source detection method and system based on infrared thermal imager and storage medium

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Experimental program
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Embodiment 1

[0041] The first embodiment provides a heat source detection method based on an infrared camera, such as figure 1 As shown, including the following steps:

[0042] S1 Gradient division step, obtain the raw infrared data under the monitoring scene, obtain the mean difference of each pixel coordinate, create a two-dimensional array of mean difference, and divide the gradient according to the mean difference from the center to the edge according to the infrared image. Find a collection of pixels in each gradient;

[0043] S2 The heat source screening step is to perform block processing on the pixel point set belonging to the corresponding gradient. Starting from the first gradient, extending from the center to the outside to find out each pixel block in the infrared image distributed according to the gradient, and filter out the judgment as the fire source / easy The pixel block of the high temperature source that caused the fire;

[0044] The S3 heat source temperature measurement step ...

Embodiment 2

[0084] The second embodiment discloses a readable computer storage medium, the storage medium is used to store a program, and when the program is executed by a processor, the heat source detection method based on the infrared camera of the first embodiment is implemented.

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Abstract

The invention discloses a heat source detection method based on an infrared thermal imager, which comprises a gradient division step and a heat source screening step, wherein the gradient division step includes the sub-steps of acquiring infrared raw bare data in the monitoring scene, solving the mean difference of coordinates of each pixel, establishing a mean difference two-dimensional array, and sequentially searching a pixel set located in each gradient on the basis of the mean difference from the center to the edge according to an infrared picture; and the heat source screening step includes the sub-steps of partitioning the pixel set belonging to the corresponding gradient, searching pixel blocks distributed according to the gradient of the infrared picture from the center outward from the first gradient, and screening out pixel blocks which are judged as fire sources/high temperature sources prone to starting a fire. The invention further discloses a heat source detection systembased on the infrared thermal imager and a storage medium. The heat source detection method and system based on the infrared thermal imager and the storage medium can identify a heat source more accurately, thereby reducing false alarms and missed alarms.

Description

Technical field [0001] The invention relates to the field of infrared monitoring and detection, in particular to a heat source detection method, system and storage medium based on an infrared thermal imager. Background technique [0002] Fire has brought a very big threat to our production and life. Once a fire occurs, it can cause major property losses at least, and severely threaten the lives and property safety of the people. Especially since the reform and opening up, a large number of electrical appliances have been widely used in our production and life. A little carelessness will inevitably cause fires, and fire hazards always exist around us. In order to avoid fire, reduce the loss caused by fire as much as possible. Usually by setting up a monitoring system, once a fire is discovered, it must be reported as soon as possible. At the same time, the fire must be controlled within the scope of ability, and the fire will be wiped out under the premise of ensuring personal sa...

Claims

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Application Information

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IPC IPC(8): G08B17/12
Inventor 曾宇肖峰黎伟雄
Owner 广州紫川物联网科技有限公司
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