CN-122015674-A - Distribution network overhead line non-contact line diameter measuring method, system, equipment and medium

CN122015674ACN 122015674 ACN122015674 ACN 122015674ACN-122015674-A

Abstract

The invention relates to the technical field of wire diameter measurement of a wire harness overhead line, in particular to a wire diameter measurement method, a system, equipment and a medium of the wire harness overhead line in a non-contact way, which comprise the steps of operating a laser ranging head through an insulating operating rod, and performing non-contact positioning on an electrified wire overhead line to be measured by utilizing an insulating positioning structure on the laser ranging head; starting a laser ranging head to emit laser to the surface of an overhead line and receive reflected light, obtaining an original measurement signal based on a triangle ranging principle, transmitting measurement data containing the original measurement signal in a wireless communication mode, receiving the measurement data by a remote terminal, decoding the original measurement signal, and calculating based on a preset measurement model to obtain the line diameter value of the overhead line. The invention has the beneficial effects that the safety, high efficiency, accurate measurement and intelligent data management of the wire diameter of the overhead wire of the distribution network are realized by a non-contact laser measurement technology, the ascending electric shock risk is thoroughly eliminated, and the operation and maintenance efficiency is greatly improved.

Inventors

HUANG ZHONGHUA
Long Junxu
LIANG BOXING
YANG XU
DONG YINGHUA

Assignees

贵州电网有限责任公司

Dates

Publication Date: 20260512
Application Date: 20251230

Claims (10)

1. A non-contact wire diameter measuring method for a wire distribution overhead wire is characterized by comprising the following steps of, Operating a laser ranging head through an insulating operating rod, and performing non-contact positioning on the electrified overhead line to be measured by utilizing an insulating positioning structure on the laser ranging head; Starting the laser ranging head to enable the laser ranging head to emit laser to the surface of the overhead line and receive reflected light, obtaining an original measurement signal based on a triangle ranging principle, and transmitting measurement data containing the original measurement signal in a wireless communication mode; The remote terminal receives the measurement data, decodes the original measurement signal, and calculates a wire diameter value of the overhead wire based on a preset measurement model; outputting the wire diameter value based on the remote terminal.
2. The method for measuring the non-contact wire diameter of the grid-connected overhead wire of claim 1, wherein the insulation positioning structure is an insulation groove arranged on the laser ranging head; The laser ranging head is operated by the insulating operating rod, and the insulating positioning structure on the laser ranging head is utilized to perform non-contact positioning on the electrified overhead line to be measured, comprising, And the angle and the position of the insulating operation rod are adjusted, so that the overhead wire is clamped into the insulating groove, and the overhead wire is positioned and aligned on the premise of keeping a safe distance.
3. The method for measuring the wire diameter of the distribution network overhead wire in a non-contact manner according to claim 2, wherein the measurement data is a data set which is organized and packaged according to a specific frame format; the measurement data also includes a system identification parameter associated with the raw measurement signal.
4. A method for non-contact wire diameter measurement of overhead wire of a power distribution network as set forth in claim 3, wherein said remote terminal receives said measurement data, decodes said raw measurement signal, and calculates a wire diameter value of said overhead wire based on a preset measurement model, comprising, Analyzing the received measurement data according to a frame format corresponding to a transmitting end, verifying the integrity of the measurement data, and extracting effective original measurement signals and related system parameters; Calculating according to the original measurement signals and related system parameters to obtain a measurement distance, and deriving the line diameter value through geometric model operation by combining prestored mechanical structure parameters of the device; And filtering the result of the multiple calculations to output a final wire diameter value.
5. The method for non-contact wire diameter measurement of distribution network overhead wire of claim 4 wherein said wireless communication uses a low power wireless protocol with a link layer checking mechanism to verify the integrity of said measurement data during transmission.
6. The method for measuring the wire diameter of the distribution network overhead wire in a non-contact manner according to claim 5, wherein the outputting the wire diameter value based on the remote terminal comprises, Displaying the wire diameter value in real time in a digital form on a display interface of the remote terminal; The remote terminal also provides a historical data query function, and can display the line diameter change trend of the same measuring point in a chart form.
7. The method for measuring the non-contact wire diameter of the grid-connected overhead wire of claim 6, further comprising, Comparing the calculated wire diameter value with a preset threshold range; and if the line diameter value exceeds the threshold range, triggering an alarm on the display interface to prompt an operator that the measurement result is abnormal.
8. A wire diameter measurement system of a distribution network overhead wire, applying the method of any one of claims 1-7, comprising: the positioning module is used for operating the laser ranging head through the insulating operating rod and performing non-contact positioning on the electrified overhead line to be measured by utilizing an insulating positioning structure on the laser ranging head; the acquisition and transmission module is used for starting the laser ranging head, enabling the laser ranging head to emit laser to the surface of the overhead line and receive reflected light, acquiring an original measurement signal based on a triangle ranging principle, and transmitting measurement data containing the original measurement signal in a wireless communication mode; The receiving and calculating module is used for receiving the measurement data by the remote terminal, decoding the original measurement signals and calculating the wire diameter value of the overhead wire based on a preset measurement model; And the output module is used for outputting the wire diameter value based on the remote terminal.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.

Description

Distribution network overhead line non-contact line diameter measuring method, system, equipment and medium Technical Field The invention relates to the technical field of wire diameter measurement of overhead wires of a distribution network, in particular to a method, a system, equipment and a medium for measuring the non-contact wire diameter of a distribution network overhead wire. Background The traditional mode only can obtain single isolated data, lacks long-term continuous monitoring capability, cannot track the aging deformation trend of the cable to support preventive maintenance, is also easily affected by electromagnetic interference, site vibration and weather under the electrified environment, and has insufficient data stability and repeatability during non-contact measurement. Disclosure of Invention In order to solve the technical problems, the invention provides the following technical scheme: In a first aspect, the invention provides a method for measuring a non-contact wire diameter of a distribution network overhead wire, which comprises the steps of operating a laser ranging head through an insulating operating rod, and performing non-contact positioning on the electrified overhead wire to be measured by utilizing an insulating positioning structure on the laser ranging head; Starting a laser ranging head to enable the laser ranging head to emit laser to the surface of an overhead line and receive reflected light, obtaining an original measurement signal based on a triangle ranging principle, and transmitting measurement data containing the original measurement signal in a wireless communication mode; the remote terminal receives the measurement data, decodes the original measurement signal, and calculates the wire diameter value of the overhead wire based on a preset measurement model; And outputting a wire diameter value based on the remote terminal. As a preferable scheme of the non-contact wire diameter measuring method of the distribution network overhead wire, the invention comprises an insulation positioning structure, a measuring device and a measuring device, wherein the insulation positioning structure is an insulation groove arranged on a laser ranging head; The laser ranging head is operated by the insulating operating rod, and the electrified overhead line to be measured is positioned in a non-contact way by utilizing the insulating positioning structure on the laser ranging head, comprising, The angle and the position of the insulating operation rod are adjusted, so that the overhead wire is clamped into the insulating groove, and the overhead wire is positioned and aligned on the premise of keeping the safe distance. As a preferable scheme of the distribution network overhead line non-contact line diameter measuring method, the invention comprises that the measured data is a data set which is organized and packaged according to a specific frame format; The measurement data also includes a system identification parameter associated with the raw measurement signal. The invention is a preferable scheme of the non-contact wire diameter measuring method of the overhead wire, wherein, the remote terminal receives the measured data, decodes the original measured signal, calculates the wire diameter value of the overhead wire based on a preset measuring model, comprises, Analyzing the received measurement data according to a frame format corresponding to the transmitting end, verifying the integrity of the measurement data, and extracting effective original measurement signals and related system parameters; according to the original measurement signals and related system parameters, calculating to obtain measurement distances, and combining pre-stored mechanical structure parameters of the device, and deducing a line diameter value through geometric model operation; And filtering the result of the multiple calculations to output a final wire diameter value. As a preferable scheme of the distribution network overhead line non-contact line diameter measuring method, the invention adopts a low-power wireless protocol with a link layer checking mechanism for wireless communication, and the integrity of measured data is verified in the transmission process. As a preferable scheme of the distribution network overhead line non-contact line diameter measuring method of the invention, wherein the method outputs the line diameter value based on the remote terminal comprises, Displaying the line diameter value in a digital form on a display interface of a remote terminal in real time; the remote terminal also provides a historical data query function, and can display the line diameter change trend of the same measuring point in a chart form. As a preferable scheme of the distribution network overhead line non-contact line diameter measuring method, the method further comprises the following steps of, Comparing the calculated wire diameter value with a preset threshold range; If the line diam