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Cable aging position detection device based on temperature transfer law

A detection device and temperature sensor technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of low aging lateral position accuracy, high cost, and many method steps, so as to simplify calculation, comparison and judgment steps and improve detection accuracy , The effect of reducing the cost of the device

Active Publication Date: 2017-05-10
南通市东风特种电线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to design an improved cable aging position infrared detector for the problems of the invention patent "A Power Line Aging Infrared Detecting Device and Detection Method", the device structure is complicated, the cost is high, the method steps are complicated and the operation is complicated, and the accuracy of the aging lateral position is low. Detection device

Method used

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  • Cable aging position detection device based on temperature transfer law
  • Cable aging position detection device based on temperature transfer law
  • Cable aging position detection device based on temperature transfer law

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specific Embodiment 1

[0055] This embodiment is an embodiment of a cable aging position detection device based on the law of temperature transfer.

[0056] The cable aging position detection device based on the temperature transfer law of this embodiment, the structural diagram is as follows figure 1 As shown, the cable aging position detection device based on the law of temperature transfer includes an upper ring 1, a middle ring 2 and a lower ring 3 arranged in sequence from top to bottom, and the middle ring 2 is located between the upper ring 1 and the lower ring. In the middle position of the annular ring 3, the cable passes through the upper annular ring 1, the middle annular ring 2 and the lower annular ring 3; the upper annular ring 1 can perform uniform circular motion in its plane, and the upper annular ring 1 is provided with The temperature sensor 11, the lower annular ring 3 can do uniform circular motion in its plane, the upper temperature sensor 31 is arranged on the lower annular ri...

specific Embodiment 2

[0058] This embodiment is an embodiment of a method for detecting the cable aging position based on the law of temperature transfer.

[0059] The cable aging position detection method based on the temperature transfer law of this embodiment is implemented on the cable aging position detection device based on the temperature transfer law described in the first specific embodiment, and the method includes the following steps:

[0060] Step a, heating the cable with the middle ring 2;

[0061] Step b, let the cable cool naturally, the cooling temperature is higher than the temperature before heating;

[0062] Step c, determining the aging lateral position;

[0063] Step d, determining the aging axial position;

[0064] Step e, determine the spatial position according to the aging transverse position and axial position.

specific Embodiment 3

[0066] This embodiment is an embodiment of a method for detecting the cable aging position based on the law of temperature transfer.

[0067] The cable aging position detection method based on the temperature transfer law of this embodiment, on the basis of the specific embodiment 2, further defines that the step c includes the following steps:

[0068] Step c1, obtain series of grayscale data

[0069] The first infrared camera 21 obtains grayscale data k1, the second infrared camera 22 obtains grayscale data k2, the third infrared camera 23 obtains grayscale data k3, the fourth infrared camera 24 obtains grayscale data k4, and the fifth infrared camera 25 obtains grayscale data k5, the sixth infrared camera 26 obtains grayscale data k6;

[0070] Step c2. Obtain the aging lateral position from the horizontal plane where the middle ring is located

[0071] Judge |k1-k2|, |k2-k3|, |k3-k4|, |k4-k5|, |k5-k6| and |k6-k1| two adjacent or separated maximum values, if:

[0072] |k1...

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Abstract

The invention discloses a cable aging position detection device based on a temperature transfer law, which belongs to the technical field of power and infrared detection. Distinguishing technical features of the cable aging position detection device based on the temperature transfer law lie in that an upper annular ring and a lower annular ring need to have a rotation function, a middle annular ring does not need to have a rotation function, six infrared cameras are arranged on the middle annular ring, and a temperature sensor is arranged on the upper annular ring and the lower annular ring respectively. Compared with a power line aging infrared detection device and a detection method provided by one invention, the cable aging position detection device based on the temperature transfer law of the invention has a special structure, the rotation function of the middle annular ring is saved, nine infrared cameras are reduced to six infrared cameras, the cost of the three saved cameras is far higher than the cost of the two temperature sensors, the complexity of the device can be reduced, and the device cost can be reduced.

Description

technical field [0001] A cable aging position detection device based on the law of temperature transfer belongs to the technical field of electric power and infrared detection. Background technique [0002] The cable is usually made of two or more wires twisted, each group of wires is insulated from each other, and the outside is covered with an insulating coating. The cable has the characteristics of internal electrification and external insulation. [0003] This structure is beneficial to protect the cable and prolong its service life, but it still cannot completely avoid aging problems such as oxidation of the conductors in the cable. Once the wires in the cable have aging problems such as oxidation, it will affect the transmission function of the line, and in severe cases, the cable will fail. [0004] Aiming at aging problems such as wire oxidation in the cable, the service life of the cable is specified. After the service life is reached, the cable will be replaced a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 王琪
Owner 南通市东风特种电线有限公司
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