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High-temperature dangerous area positioning method

A dangerous area and positioning method technology, applied in the field of substation calorific value positioning and detection, can solve the problems of high temperature dangerous point positioning deviation, inaccurate ranging results, etc., and achieve the effect of wide application field, good measurement stability and high measurement accuracy

Pending Publication Date: 2020-11-13
HUBEI POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Conventional ranging methods are too affected by ambient light, temperature and humidity, etc., resulting in inaccurate ranging results, which in turn will cause deviations in the positioning of high-temperature danger points

Method used

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  • High-temperature dangerous area positioning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] See figure 1 , figure 1 It is a flow chart of a method for locating a high-temperature dangerous area provided by an embodiment of the present invention; the method for locating a high-temperature dangerous area in this embodiment includes:

[0050] S101. Install the binocular camera and the infrared camera on the pan / tilt of the same detection device, and adjust them to be parallel to the optical axes; the binocular camera and the infrared camera generate a pitch angle and a rotation angle of the optical axis with the rotation of the pan / tilt.

[0051] The binocular camera is a white light camera, and the infrared camera includes an infrared thermal imager, an infrared camera, etc.; the trinocular camera composed of two white light cameras and an infrared camera is set at the same horizontal position of the pan / tilt when installed on the detection equipment, so that the three The objective camera is adjusted to be parallel to the optical axis, so that the image inform...

Embodiment approach

[0057] As an implementation, this step may include the following refinement steps:

[0058] S1041. 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;

[0059] S1042. 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.

[0060] 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:

[0061]

[0062] in, is the i-th target expansion area, is the largest target expansion area in the field.

[0063] S1043. Use the maximum target expansion area as the target ROI of the binocular image to realize target...

Embodiment 2

[0090] See figure 2 , figure 2 It is a schematic structural diagram of a system for locating and collecting calorific value of regional dangerous targets provided by an embodiment of the present invention; the system for locating and collecting calorific value of regional dangerous targets in this embodiment includes:

[0091] Distance measurement and temperature measurement module, including binocular camera (left eye camera and right eye camera), infrared camera and image processing device; binocular camera and infrared camera are installed on the pan / tilt of the same detection device, and adjusted to parallel optical axes; image processing The device is respectively connected with the binocular camera and the infrared camera; the image processing device recognizes the target according to the images collected by the binocular camera and the infrared camera, and measures the target distance.

[0092] The pose measurement and control module includes a pan-tilt motor, an enc...

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Abstract

The invention relates to a high-temperature dangerous area positioning method, which comprises the following steps of: installing a binocular camera and an infrared camera on a cradle head of the samedetection device, and adjusting the binocular camera and the infrared camera into parallel optical axes; the infrared camera collects an infrared image and determines a high-temperature dangerous area according to the infrared image; collecting a pitch angle and a rotation angle of the optical axis; the binocular camera collects a binocular image containing a high-temperature dangerous area as atarget area; 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; calculating a binocular target center position according to the target segmentation result; calculating target parallax according to the center position of the binocular target; calculating a target distance according to the distance-parallax model; calculating to obtain a target coordinate value according to the pitch angle, the rotation angle and the target distance; and the physical position of the target is calculated according to the physical coordinates of the detection device and the target coordinate value to realize high-temperature dangerous area positioning. By means of the positioning method, accurate positioning of the high-temperature dangerous area can be achieved.

Description

technical field [0001] The invention belongs to the technical field of heat value positioning and detection of substations, and in particular relates to a method for locating high-temperature dangerous areas applied to substations. 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] Conventional ranging methods are too affected by ambient light, temperature and humidity, etc., resulting in inaccurate ranging results, which in turn will cause deviations in the positioning of h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G06T7/66G06T7/73G01J5/00G01C11/04G01C11/36
CPCG06T7/11G06T7/66G06T7/73G01J5/0096G01C11/04G06T2207/10004G06T2207/10048G06T2207/30108G01C11/36
Inventor 绳玉玲李冬云
Owner HUBEI POLYTECHNIC INST
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