CN107478334A - A kind of cable aging infrared detecting device and detection method - Google Patents

A kind of cable aging infrared detecting device and detection method Download PDF

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CN107478334A
CN107478334A CN201710664998.9A CN201710664998A CN107478334A CN 107478334 A CN107478334 A CN 107478334A CN 201710664998 A CN201710664998 A CN 201710664998A CN 107478334 A CN107478334 A CN 107478334A
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infrared
infrared camera
aging
cable
annular ring
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CN107478334B (en
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李源
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Jiangsu Tin Yi High Tech Zone Technology Development Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/03—Arrangements for indicating or recording specially adapted for radiation pyrometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/48—Thermography; Techniques using wholly visual means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077—Imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
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  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
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  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
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  • Computer Vision & Pattern Recognition (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

A kind of cable aging infrared detecting device belongs to electric power infrared detecting device and method and technology field with detection method；The cable aging infrared detecting device includes the upper annular ring set gradually from top to bottom, middle annular ring and lower annular ring, and infrared camera is uniformly distributed on each annular ring, and all shooting head output signals are all connected with signal processor；The cable aging infrared detection method determines aging lateral attitude first, it is then determined that aging axial location, finally determines locus；Cable aging infrared detecting device of the present invention and detection method, wire aging position in cable can be quickly found in the case where not destroying cable, be advantageous to be changed for cable aging, reduce cable cost.

Description

A kind of cable aging infrared detecting device and detection method
Technical field
A kind of cable aging infrared detecting device belongs to electric power infrared detecting device and method and technology field with detection method.
Background technology
Cable is typically to be twisted by two or multiple conducting wires, and mutually insulated between every group of wire, outside is surrounded by insulation Coating.Cable has interior energization, the feature of external insulation.
This structure, be advantageous to protect cable, extend its service life, but still can not thoroughly avoid wire in cable The problem of aging such as generation oxidation.Once the problem of aging such as oxidation occur for the wire in cable, it will the transfer function of circuit is influenceed, Cable failure will be caused when serious.
For the problem of aging such as wire oxidation in cable, service life is formulated to cable, after service life is reached, just Cable can be subjected to integral replacing.However, if cable carries out integral replacing in the case where still having superperformance, it is bound to Cost can be improved.The method for solving this problem is exactly that cable is inspected periodically, and searches wire in cable and aging occurs Position, then cable is changed.
However, the apparatus and method with wire aging position in detection cable are not found also.
The content of the invention
For under the construction of cable at this stage, the undetectable problem in aging position such as wire oxidation, the invention discloses A kind of cable aging infrared detecting device and detection method, can quickly find in cable and lead in the case where not destroying cable Line aging position, be advantageous to be changed for cable aging, reduce cable cost.
The object of the present invention is achieved like this：
A kind of cable aging infrared detecting device, including the upper annular ring set gradually from top to bottom, middle annular ring is with Annular ring, the middle annular ring are located at the centre position of upper annular ring and lower annular ring, cable from upper annular ring, middle annular ring and Passed through in lower annular ring, be evenly arranged with an infrared camera around upper annular ring, upper two infrared camera and upper three red Outer camera, an infrared camera in being evenly arranged with around middle annular ring, in two infrared cameras and in three infrared photographies Head, next infrared camera is evenly arranged with around lower annular ring, lower two infrared cameras and lower three infrared camera are described Upper annular ring, middle annular ring and lower annular ring are respectively provided with temperature-monitoring function, and middle annular ring has uniform heating function；Upper one is red Outer camera, in an infrared camera and next infrared camera be located on the same straight line parallel with direction where cable, Upper two infrared camera, in two infrared cameras and lower two infrared camera be located at straight parallel with direction where cable of same On line, upper three infrared camera, in three infrared cameras and lower three infrared camera be located at same and put down with direction where cable On capable straight line；A upper infrared camera, upper two infrared camera, upper three infrared camera, in an infrared camera, in it is two red Outer camera, in three infrared cameras, next infrared camera, the output letter of lower two infrared cameras and lower three infrared camera Number connection signal processor.
A kind of cable aging infrared detection method realized on above-mentioned cable aging infrared detecting device, including following step Suddenly：
Step a, in, annular ring is to electric cable heating；
Step b, aging lateral attitude is determined；
Step c, aging axial location is determined；
Step d, according to aging lateral attitude and axial location, locus is determined.
Above-mentioned cable aging infrared detection method, the step b comprise the following steps：
Step b1, serial gradation data is obtained
A upper infrared camera obtains gradation data k11, and upper two infrared camera obtains gradation data k12, and upper three is infrared Camera obtains gradation data k13, in an infrared camera obtain gradation data k21, in two infrared cameras obtain grey According to k22, in three infrared cameras obtain gradation data k23, next infrared camera obtains gradation data k31, and lower two infrared take the photograph As head obtains gradation data k32, lower three infrared cameras obtain gradation data k33；
Step b2, aging lateral attitude is obtained from horizontal plane where upper annular ring
Judge min (| k11-k12 |, | k11-k13 |, | k12-k13 |) minimum value, if：
The first situation：| k11-k12 | minimum, aging position is located at the region or upper one that upper three infrared camera is covered The boundary of infrared camera and upper two infrared camera；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11- K13 |, | k12-k13 |) minimum value, if：
| k11-k12 | minimum, aging position is located at the region that upper three infrared camera is covered,
Other, aging position is located at the boundary of a upper infrared camera and upper two infrared camera；
Second of situation：| k11-k13 | minimum, aging position is located at the region or upper one that upper two infrared camera is covered The boundary of infrared camera and upper three infrared camera；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11- K13 |, | k12-k13 |) minimum value, if：
| k11-k13 | minimum, aging position is located at the region that upper two infrared camera is covered,
Other, aging position is located at the boundary of a upper infrared camera and upper three infrared camera；
The third situation：| k12-k13 | minimum, aging position is located at the region or upper two that a upper infrared camera is covered The boundary of infrared camera and upper three infrared camera；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11- K13 |, | k12-k13 |) minimum value, if：
| k12-k13 | minimum, aging position is located at the region that a upper infrared camera is covered,
Other, aging position is located at the boundary of upper two infrared camera and upper three infrared camera；
Step b3, therefrom horizontal plane where annular ring obtains aging lateral attitude
Judge min (| k21-k22 |, | k21-k23 |, | k22-k23 |) minimum value, if：
The first situation：| k21-k22 | it is minimum, three infrared cameras are covered during aging position is located at region or in one The boundary of infrared camera two infrared cameras with；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21- K23 |, | k22-k23 |) minimum value, if：
| k21-k22 | minimum, the region that three infrared cameras are covered during aging position is located at,
Other, the boundary of an infrared camera two infrared cameras with during aging position is located at；
Second of situation：| k21-k23 | it is minimum, two infrared cameras are covered during aging position is located at region or in one The boundary of infrared camera three infrared cameras with；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21- K23 |, | k22-k23 |) minimum value, if：
| k21-k23 | minimum, the region that two infrared cameras are covered during aging position is located at,
Other, the boundary of an infrared camera three infrared cameras with during aging position is located at；
The third situation：| k22-k23 | it is minimum, an infrared camera is covered during aging position is located at region or in two The boundary of infrared camera three infrared cameras with；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21- K23 |, | k22-k23 |) minimum value, if：
| k22-k23 | minimum, the region that an infrared camera is covered during aging position is located at,
Other, the boundary of two infrared cameras, three infrared cameras with during aging position is located at；
Step b4, aging lateral attitude is obtained from horizontal plane where lower annular ring
Judge min (| k31-k32 |, | k31-k33 |, | k32-k33 |) minimum value, if：
The first situation：| k31-k32 | minimum, aging position is located at the region or next that lower three infrared camera is covered The boundary of infrared camera and lower two infrared camera；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31- K33 |, | k32-k33 |) minimum value, if：
| k31-k32 | minimum, aging position is located at the region that lower three infrared camera is covered,
Other, aging position is located at the boundary of next infrared camera and lower two infrared camera；
Second of situation：| k31-k33 | minimum, aging position is located at the region or next that lower two infrared camera is covered The boundary of infrared camera and lower three infrared camera；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31- K33 |, | k32-k33 |) minimum value, if：
| k31-k33 | minimum, aging position is located at the region that lower two infrared camera is covered,
Other, aging position is located at the boundary of next infrared camera and lower three infrared camera；
The third situation：| k32-k33 | minimum, aging position is located at the region or lower two that next infrared camera is covered The boundary of infrared camera and lower three infrared camera；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31- K33 |, | k32-k33 |) minimum value, if：
| k32-k33 | minimum, aging position is located at the region that next infrared camera is covered,
Other, aging position is located at the boundary of lower two infrared camera and lower three infrared camera；
Step b5, aging lateral attitude is determined
According to the principle that the minority is subordinate to the majority, horizontal plane where from upper annular ring obtains aging lateral attitude, middle annular ring Place horizontal plane obtains aging lateral attitude, and horizontal plane where lower annular ring obtains aging lateral attitude, final to determine that aging is horizontal To position.
Above-mentioned cable aging infrared detection method, the step c comprise the following steps：
Step c1, in, annular ring is to electric cable heating
Step c2, in defined time t, calculate：
Step c3, the curve that t1 (t) and t3 (t) are changed over time is drawn, if：
T1 (t) moves down cable aging infrared detecting device, repeat step b1 above t3 (t)；
T1 (t) moves up cable aging infrared detecting device, repeat step b1 below t3 (t)；
T1 (t) and t3 (t) is overlapped, and aging axial location is located at plane where middle annular ring.
Beneficial effect：
Present invention finds wire in cable after weathering, heat conductivility will change, and make full use of the change, will The infrared detection technology of infrared thermal imaging is incorporated into cable detection field, invented a kind of cable aging infrared detecting device with Detection method, under apparatus of the present invention and method, wire aging in cable can be quickly found in the case where not destroying cable Position, be advantageous to be changed for cable aging, reduce cable cost.
Detection means and detection method involved in the present invention, electric cable stoppage detection also is adapted for, should when breaking down Fault location is carried out with the present apparatus and method；The other present apparatus and method can also be applied and especially gone out in cable quality inspection Factory checks and sampling observation of examining goods.
Brief description of the drawings
Fig. 1 is the structural representation of cable aging infrared detecting device of the present invention.
In figure：Annular ring on 1, an infrared camera on 11, two infrared cameras on 12, on 13 in three infrared cameras, 2 It is three infrared cameras in two infrared cameras, 23 in an infrared camera, 22 in annular ring, 21,3 times annular rings, 31 next red Outer camera, 32 times two infrared cameras, 33 times three infrared cameras.
Embodiment
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment one
The present embodiment is cable aging infrared detecting device embodiment.
The cable aging infrared detecting device of the present embodiment, structural representation are as shown in Figure 1.The cable aging infrared detection Device includes the upper annular ring 1 set gradually from top to bottom, middle annular ring 2 and lower annular ring 3, and the middle annular ring 2 is positioned at upper The centre position of annular ring 1 and lower annular ring 3, cable pass through from upper annular ring 1, middle annular ring 2 and lower annular ring 3, upper ring An infrared camera 11, upper two infrared camera 12 and upper three infrared camera 13, middle ring are evenly arranged with around shape circle 1 An infrared camera 21 in being evenly arranged with around shape circle 2, in two infrared cameras 22 and in three infrared cameras 23, lower ring Next infrared camera 31 is evenly arranged with around shape circle 3, lower two infrared cameras 32 and lower three infrared camera 33 are described Upper annular ring 1, middle annular ring 2 and lower annular ring 3 are respectively provided with temperature-monitoring function, and middle annular ring 2 has uniform heating function；On One infrared camera 11, in an infrared camera 21 and next infrared camera 31 to be located at same parallel with direction where cable Straight line on, upper two infrared camera 12, in two infrared cameras 22 and lower two infrared camera 32 be located at same and cable On the parallel straight line in place direction, upper three infrared camera 13, in three infrared cameras 23 and lower three infrared camera 33 be located at On the same straight line parallel with direction where cable；A upper infrared camera 11, upper two infrared camera 12, upper three infrared take the photograph As first 13, in an infrared camera 21, in two infrared cameras 22, in three infrared cameras 23, next infrared camera 31, under Two infrared cameras 32 connect signal processor with the output signal of lower three infrared camera 33.
Specific embodiment two
The present embodiment is cable aging infrared detection method embodiment.
The cable aging infrared detection method of the present embodiment, in cable aging infrared detecting device described in specific embodiment one Upper realization.The cable aging infrared detection method, comprises the following steps：
Step a, in, annular ring 2 gives electric cable heating；
Step b, aging lateral attitude is determined；
Step c, aging axial location is determined；
Step d, according to aging lateral attitude and axial location, locus is determined.
Specific embodiment three
The present embodiment is cable aging infrared detection method embodiment.
The cable aging infrared detection method of the present embodiment, on the basis of specific embodiment two, further described in restriction Step b comprises the following steps：
Step b1, serial gradation data is obtained
A upper infrared camera 11 obtains gradation data k11, and upper two infrared camera 12 obtains gradation data k12, and upper three Infrared camera 13 obtains gradation data k13, in an infrared camera 21 obtain gradation data k21, in two infrared cameras 22 Obtain gradation data k22, in three infrared cameras 23 obtain gradation data k23, next infrared camera 31 obtains gradation data K31, lower two infrared cameras 32 obtain gradation data k32, and lower three infrared cameras 33 obtain gradation data k33；
Step b2, aging lateral attitude is obtained from the upper place horizontal plane of annular ring 1
Judge min (| k11-k12 |, | k11-k13 |, | k12-k13 |) minimum value, if：
The first situation：| k11-k12 | it is minimum, aging position be located at the region that upper three infrared camera 13 covered or on The boundary of one infrared camera 11 and upper two infrared camera 12；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11- K13 |, | k12-k13 |) minimum value, if：
| k11-k12 | minimum, aging position is located at the region that upper three infrared camera 13 is covered,
Other, aging position is located at the boundary of a upper infrared camera 11 and upper two infrared camera 12；
Second of situation：| k11-k13 | it is minimum, aging position be located at the region that upper two infrared camera 12 covered or on The boundary of one infrared camera 11 and upper three infrared camera 13；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11- K13 |, | k12-k13 |) minimum value, if：
| k11-k13 | minimum, aging position is located at the region that upper two infrared camera 12 is covered,
Other, aging position is located at the boundary of a upper infrared camera 11 and upper three infrared camera 13；
The third situation：| k12-k13 | it is minimum, aging position be located at the region that a upper infrared camera 11 covered or on The boundary of two infrared cameras 12 and upper three infrared camera 13；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11- K13 |, | k12-k13 |) minimum value, if：
| k12-k13 | minimum, aging position is located at the region that a upper infrared camera 11 is covered,
Other, aging position is located at the boundary of upper two infrared camera 12 and upper three infrared camera 13；
Step b3, therefrom the place horizontal plane of annular ring 2 obtains aging lateral attitude
Judge min (| k21-k22 |, | k21-k23 |, | k22-k23 |) minimum value, if：
The first situation：| k21-k22 | it is minimum, three infrared cameras 23 are covered during aging position is located at region or in The boundary of one two infrared cameras 22 with of infrared camera 21；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21- K23 |, | k22-k23 |) minimum value, if：
| k21-k22 | minimum, the region that three infrared cameras 23 are covered during aging position is located at,
Other, the boundary of two infrared cameras 22 with of infrared camera 21 during aging position is located at；
Second of situation：| k21-k23 | it is minimum, two infrared cameras 22 are covered during aging position is located at region or in The boundary of one three infrared cameras 23 with of infrared camera 21；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21- K23 |, | k22-k23 |) minimum value, if：
| k21-k23 | minimum, the region that two infrared cameras 22 are covered during aging position is located at,
Other, the boundary of three infrared cameras 23 with of infrared camera 21 during aging position is located at；
The third situation：| k22-k23 | it is minimum, an infrared camera 21 is covered during aging position is located at region or in The boundary of two three infrared cameras 23 with of infrared cameras 22；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21- K23 |, | k22-k23 |) minimum value, if：
| k22-k23 | minimum, the region that an infrared camera 21 is covered during aging position is located at,
Other, the boundary of two three infrared cameras 23 with of infrared cameras 22 during aging position is located at；
Step b4, aging lateral attitude is obtained from the lower place horizontal plane of annular ring 3
Judge min (| k31-k32 |, | k31-k33 |, | k32-k33 |) minimum value, if：
The first situation：| k31-k32 | it is minimum, aging position be located at the region that lower three infrared camera 33 covered or under The boundary of one infrared camera 31 and lower two infrared camera 32；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31- K33 |, | k32-k33 |) minimum value, if：
| k31-k32 | minimum, aging position is located at the region that lower three infrared camera 33 is covered,
Other, aging position is located at the boundary of next infrared camera 31 and lower two infrared camera 32；
Second of situation：| k31-k33 | it is minimum, aging position be located at the region that lower two infrared camera 32 covered or under The boundary of one infrared camera 31 and lower three infrared camera 33；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31- K33 |, | k32-k33 |) minimum value, if：
| k31-k33 | minimum, aging position is located at the region that lower two infrared camera 32 is covered,
Other, aging position is located at the boundary of next infrared camera 31 and lower three infrared camera 33；
The third situation：| k32-k33 | it is minimum, aging position be located at the region that next infrared camera 31 covered or under The boundary of two infrared cameras 32 and lower three infrared camera 33；
Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31- K33 |, | k32-k33 |) minimum value, if：
| k32-k33 | minimum, aging position is located at the region that next infrared camera 31 is covered,
Other, aging position is located at the boundary of lower two infrared camera 32 and lower three infrared camera 33；
Step b5, aging lateral attitude is determined
According to the principle that the minority is subordinate to the majority, aging lateral attitude, middle annular ring are obtained from the upper place horizontal plane of annular ring 1 2 place horizontal planes obtain aging lateral attitude, and the lower place horizontal plane of annular ring 3 obtains aging lateral attitude, finally determines aging Lateral attitude.
Specific embodiment four
The present embodiment is cable aging infrared detection method embodiment.
The cable aging infrared detection method of the present embodiment, on the basis of specific embodiment two, further described in restriction Step c comprises the following steps：
Step c1, in, annular ring 2 gives electric cable heating
Step c2, in defined time t, calculate：
Step c3, the curve that t1 (t) and t3 (t) are changed over time is drawn, if：
T1 (t) moves down cable aging infrared detecting device, repeat step b1 above t3 (t)；
T1 (t) moves up cable aging infrared detecting device, repeat step b1 below t3 (t)；
T1 (t) and t3 (t) is overlapped, and aging axial location is located at the middle place plane of annular ring 2.

Claims (4)

  1. A kind of 1. cable aging infrared detecting device, it is characterised in that including the upper annular ring (1) set gradually from top to bottom, Middle annular ring (2) and lower annular ring (3), the middle annular ring (2) are located at the interposition of upper annular ring (1) and lower annular ring (3) Put, cable passes through from upper annular ring (1), middle annular ring (2) and lower annular ring (3), is uniformly arranged around upper annular ring (1) There are a upper infrared camera (11), upper two infrared camera (12) and upper three infrared camera (13), around middle annular ring (2) An infrared camera (21) in being evenly arranged with, in two infrared cameras (22) and in three infrared cameras (23), lower annular ring (3) next infrared camera (31) is evenly arranged with around, lower two infrared cameras (32) and lower three infrared camera (33), The upper annular ring (1), middle annular ring (2) and lower annular ring (3) are respectively provided with temperature-monitoring function, and middle annular ring (2) has equal Even heating function；A upper infrared camera (11), in an infrared camera (21) and next infrared camera (31) positioned at same On the parallel straight line in direction where bar and cable, upper two infrared camera (12), in two infrared cameras (22) and lower two infrared On the parallel straight line in direction where camera (32) is located at same and cable, upper three infrared camera (13), in three infrared take the photograph As head (23) and lower three infrared camera (33) are located on the same straight line parallel with direction where cable；A upper infrared photography Head (11), upper two infrared camera (12), upper three infrared camera (13), in an infrared camera (21), in two infrared photographies Head (22), in three infrared cameras (23), next infrared camera (31), lower two infrared cameras (32) and lower three infrared photography The output signal connection signal processor of head (33).
  2. 2. it is a kind of in the cable aging infrared detection method realized described in claim 1 on cable aging infrared detecting device, its It is characterised by, comprises the following steps：
    Step a, in, annular ring (2) gives electric cable heating；
    Step b, aging lateral attitude is determined；
    Step c, aging axial location is determined；
    Step d, according to aging lateral attitude and axial location, locus is determined.
  3. 3. cable aging infrared detection method according to claim 2, it is characterised in that the step b includes following step Suddenly：
    Step b1, serial gradation data is obtained
    A upper infrared camera (11) obtains gradation data k11, and upper two infrared camera (12) obtains gradation data k12, and upper three Infrared camera (13) obtains gradation data k13, in an infrared camera (21) obtain gradation data k21, in two infrared photographies Head (22) obtains gradation data k22, in three infrared cameras (23) obtain gradation data k23, next infrared camera (31) To gradation data k31, lower two infrared cameras (32) obtain gradation data k32, and lower three infrared cameras (33) obtain grey According to k33；
    Step b2, aging lateral attitude is obtained from horizontal plane where upper annular ring (1)
    Judge min (| k11-k12 |, | k11-k13 |, | k12-k13 |) minimum value, if：
    The first situation：| k11-k12 | minimum, aging position is located at the region or upper one that upper three infrared camera (13) is covered The boundary of infrared camera (11) and upper two infrared camera (12)；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11-k13 |, | k12-k13 |) minimum value, if：
    | k11-k12 | minimum, aging position is located at the region that upper three infrared camera (13) is covered,
    Other, aging position is located at the boundary of a upper infrared camera (11) and upper two infrared camera (12)；
    Second of situation：| k11-k13 | minimum, aging position is located at the region or upper one that upper two infrared camera (12) is covered The boundary of infrared camera (11) and upper three infrared camera (13)；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11-k13 |, | k12-k13 |) minimum value, if：
    | k11-k13 | minimum, aging position is located at the region that upper two infrared camera (12) is covered,
    Other, aging position is located at the boundary of a upper infrared camera (11) and upper three infrared camera (13)；
    The third situation：| k12-k13 | minimum, aging position is located at the region or upper two that a upper infrared camera (11) is covered The boundary of infrared camera (12) and upper three infrared camera (13)；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k11-k12 |, | k11-k13 |, | k12-k13 |) minimum value, if：
    | k12-k13 | minimum, aging position is located at the region that a upper infrared camera (11) is covered,
    Other, aging position is located at the boundary of upper two infrared camera (12) and upper three infrared camera (13)；
    Step b3, therefrom horizontal plane where annular ring (2) obtains aging lateral attitude
    Judge min (| k21-k22 |, | k21-k23 |, | k22-k23 |) minimum value, if：
    The first situation：| k21-k22 | it is minimum, three infrared cameras (23) are covered during aging position is located at region or in one Infrared camera (21) and in two infrared cameras (22) boundary；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21-k23 |, | k22-k23 |) minimum value, if：
    | k21-k22 | minimum, the region that three infrared cameras (23) are covered during aging position is located at,
    Other, during aging position is located at an infrared camera (21) and in two infrared cameras (22) boundary；
    Second of situation：| k21-k23 | it is minimum, two infrared cameras (22) are covered during aging position is located at region or in one Infrared camera (21) and in three infrared cameras (23) boundary；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21-k23 |, | k22-k23 |) minimum value, if：
    | k21-k23 | minimum, the region that two infrared cameras (22) are covered during aging position is located at,
    Other, during aging position is located at an infrared camera (21) and in three infrared cameras (23) boundary；
    The third situation：| k22-k23 | it is minimum, an infrared camera (21) is covered during aging position is located at region or in two Infrared camera (22) and in three infrared cameras (23) boundary；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k21-k22 |, | k21-k23 |, | k22-k23 |) minimum value, if：
    | k22-k23 | minimum, the region that an infrared camera (21) is covered during aging position is located at,
    Other, during aging position is located at two infrared cameras (22) and in three infrared cameras (23) boundary；
    Step b4, aging lateral attitude is obtained from horizontal plane where lower annular ring (3)
    Judge min (| k31-k32 |, | k31-k33 |, | k32-k33 |) minimum value, if：
    The first situation：| k31-k32 | minimum, aging position is located at the region or next that lower three infrared camera (33) is covered The boundary of infrared camera (31) and lower two infrared camera (32)；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31-k33 |, | k32-k33 |) minimum value, if：
    | k31-k32 | minimum, aging position is located at the region that lower three infrared camera (33) is covered,
    Other, aging position is located at the boundary of next infrared camera (31) and lower two infrared camera (32)；
    Second of situation：| k31-k33 | minimum, aging position is located at the region or next that lower two infrared camera (32) is covered The boundary of infrared camera (31) and lower three infrared camera (33)；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31-k33 |, | k32-k33 |) minimum value, if：
    | k31-k33 | minimum, aging position is located at the region that lower two infrared camera (32) is covered,
    Other, aging position is located at the boundary of next infrared camera (31) and lower three infrared camera (33)；
    The third situation：| k32-k33 | minimum, aging position is located at the region or lower two that next infrared camera (31) is covered The boundary of infrared camera (32) and lower three infrared camera (33)；
    Cable aging infrared detecting device is rotated no more than 5 ° in the horizontal plane, judge min (| k31-k32 |, | k31-k33 |, | k32-k33 |) minimum value, if：
    | k32-k33 | minimum, aging position is located at the region that next infrared camera (31) is covered,
    Other, aging position is located at the boundary of lower two infrared camera (32) and lower three infrared camera (33)；
    Step b5, aging lateral attitude is determined
    According to the principle that the minority is subordinate to the majority, horizontal plane where from upper annular ring (1) obtains aging lateral attitude, middle annular ring (2) horizontal plane where obtains aging lateral attitude, and horizontal plane where lower annular ring (3) obtains aging lateral attitude, final to determine Aging lateral attitude.
  4. 4. cable aging infrared detection method according to claim 2, it is characterised in that the step c includes following step Suddenly：
    Step c1, in, annular ring (2) gives electric cable heating；
    Step c2, in defined time t, calculate：
    <mrow> <mi>t</mi> <mn>1</mn> <mrow> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mrow> <mo>=</mo> <munderover> <mo>&amp;Integral;</mo> <mn>0</mn> <mi>t</mi> </munderover> <mrow> <mo>(</mo> <mi>k</mi> <mn>11</mn> <mo>+</mo> <mi>k</mi> <mn>12</mn> <mo>+</mo> <mi>k</mi> <mn>13</mn> <mo>)</mo> </mrow> <mi>d</mi> <mi>t</mi> </mrow>
    <mrow> <mi>t</mi> <mn>3</mn> <mrow> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mrow> <mo>=</mo> <munderover> <mo>&amp;Integral;</mo> <mn>0</mn> <mi>t</mi> </munderover> <mrow> <mo>(</mo> <mi>k</mi> <mn>31</mn> <mo>+</mo> <mi>k</mi> <mn>32</mn> <mo>+</mo> <mi>k</mi> <mn>33</mn> <mo>)</mo> </mrow> <mi>d</mi> <mi>t</mi> </mrow>
    Step c3, the curve that t1 (t) and t3 (t) are changed over time is drawn, if：
    T1 (t) moves down cable aging infrared detecting device, repeat step b1 above t3 (t)；
    T1 (t) moves up cable aging infrared detecting device, repeat step b1 below t3 (t)；
    T1 (t) and t3 (t) is overlapped, and aging axial location is located at plane where middle annular ring (2).
CN201710664998.9A 2016-10-20 2017-08-07 A kind of cable aging infrared detection method Active CN107478334B (en)

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CN103163150A (en) * 2013-03-18 2013-06-19 长飞光纤光缆有限公司 Online cable surface defect detection device and online cable surface defect detection method
CN203491576U (en) * 2013-10-11 2014-03-19 浙江昌泰电力开关有限公司 Temperature and humidity control device of mobile box transformer substation
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JPH1030990A (en) * 1996-07-16 1998-02-03 Ishikawajima Harima Heavy Ind Co Ltd Raising-lowering and swiveling mechanism for liquid penetrant testing apparatus
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