Infrared-assisted binocular ranging method and distance compensation heat value acquisition method

A binocular ranging and binocular technology, which is applied in the field of distance compensation calorific value acquisition and infrared-assisted binocular ranging, can solve the problems of affecting the temperature accuracy of infrared temperature measuring methods, inaccurate ranging results, and low high temperature values. , to achieve the effect of improving accuracy and stability, wide application area and high measurement accuracy

Pending Publication Date: 2020-11-24
广州洪拓光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the measurement results of the conventional infrared temperature measurement method are affected by the distance of the measured object. The farther the distance is, the lower the high temperature value is, so distance compensation is required; while the conventional distance measurement method is too affected by the ambient light, temperature and humidity, etc., causing the measurement The distance result is inaccurate, which in turn affects the accuracy of the temperature obtained by the distance-compensated infrared temperature measurement method

Method used

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  • Infrared-assisted binocular ranging method and distance compensation heat value acquisition method
  • Infrared-assisted binocular ranging method and distance compensation heat value acquisition method
  • Infrared-assisted binocular ranging method and distance compensation heat value acquisition method

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Embodiment 1

[0066] See figure 1 , figure 1 It is a flow chart of an infrared-assisted binocular ranging method provided in an embodiment of the present invention. The binocular ranging method in the embodiment of the present invention includes:

[0067] S101. Collect an infrared image, and determine a high temperature danger area according to the infrared image.

[0068] Infrared images are collected by infrared cameras. Infrared cameras include infrared thermal imaging cameras, infrared cameras, etc.; infrared cameras are set on detection equipment to monitor the temperature of substation power equipment in real time; when the monitored area temperature is higher than the set normal temperature threshold , the area is identified as a high temperature hazard area.

[0069] In an embodiment of the present invention, in addition to the infrared camera, it also includes two white light cameras, and the trinocular camera composed of the two white light cameras and the infrared camera is set...

Embodiment approach

[0073] As an implementation, this step may include the following refinement steps:

[0074] S1031. Find the target expansion area according to the target area and the high temperature danger area; the target expansion area includes the target area of ​​the binocular image;

[0075] S1032. According to the scale relationship of the finite set of targets, find out the maximum target expansion area; the maximum target expansion area includes the high temperature danger area and the target area.

[0076] It should be noted that the scale relationship of the finite set of targets means that in the field of view, the number of targets contained is limited, and the scale of each target is also limited, which is the constraint defined by the following formula:

[0077]

[0078] in, is the i-th target expansion area, is the largest target expansion area in the field.

[0079] S1033. Use the maximum target extension area as the target ROI of the binocular image to realize target...

Embodiment 2

[0096] See figure 2 , figure 2 It is a flow chart of a distance compensation calorific value acquisition method provided by the embodiment of the present invention; the calorific value acquisition method of the embodiment of the present invention includes:

[0097] S201. Collect an infrared image, determine a high temperature dangerous area according to the infrared image, and collect an initial temperature of the high temperature dangerous area.

[0098] Infrared images are collected by infrared cameras. Infrared cameras include infrared thermal imaging cameras, infrared cameras, etc.; infrared cameras are set on detection equipment to monitor the temperature of substation power equipment in real time; when the monitored area temperature is higher than the set normal temperature threshold , the area is identified as a high temperature danger area, and the temperature value of the high temperature danger area is extracted as the initial temperature value.

[0099] In an em...

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Abstract

The invention relates to an infrared-assisted binocular ranging method and a distance compensation heat value acquisition method. The infrared-assisted binocular ranging method comprises the followingsteps: collecting an infrared image, and determining a high-temperature dangerous region according to the infrared image; collecting a binocular image containing the high-temperature dangerous regionas a target region; determining a target region of interest of the binocular image according to the target region and the high-temperature dangerous region to realize target segmentation; calculatinga binocular target center position according to the target segmentation result; calculating target parallax according to the center position of the binocular target; and calculating a target distanceaccording to the distance-parallax model. The distance compensation heat value acquisition method calculates the target temperature according to the obtained target distance and the initial temperature of the high-temperature dangerous region and the distance-temperature model. Compared with a traditional method, the ranging method is high in measurement precision, wide in application field and good in measurement stability. The temperature measurement result of the high-temperature dangerous region is compensated through the measured accurate distance, and the accuracy and stability of target temperature measurement are improved.

Description

technical field [0001] The invention belongs to the technical field of substation calorific value detection, and in particular relates to an infrared-assisted binocular ranging method and a distance compensation calorific value acquisition method applied to substation calorific value detection. Background technique [0002] In power systems, unnecessary failures are often caused by abnormal temperature of equipment. Therefore, by monitoring various temperature state changes of electrical equipment, it is possible to diagnose equipment failures. All kinds of substation equipment are placed in the open air in the substation, among which the knife switch contacts, terminal blocks, switches and other components need to be monitored in real time and accurately. Find, track, and troubleshoot to ensure the safe operation of power equipment. [0003] Infrared temperature measurement is widely used in the field of regional temperature measurement due to its advantages of non-contac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/34G01C11/04G01J5/00
CPCG01J5/0066G01C11/04G01C11/36G06V20/10G06V10/25G06V10/267
Inventor 田军委于亚琳王沁
Owner 广州洪拓光电技术有限公司
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