阅读说明：本技术 一种导地线线径测量方法、装置、设备及介质 (Method, device, equipment and medium for measuring wire diameter of ground wire ) 是由 高瑞 杜永永 李倩竹 黄凯 朱国光 李诺东 江宁 周福 张博洲 杨阳 黄满意 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种导/地线线径测量方法、装置、设备及介质,其技术方案要点是：采用RTK无人机对导/地线挂点悬垂线夹外侧面进行拍摄,获取导/地线的挂点图像；选取导/地线的悬垂线夹为所述挂点图像中的参照物,获取导/地线的像素尺寸；根据所述像素尺寸和导/地线悬垂线夹的实际长度计算得到导线线径及地线线径；根据所述导线线径及地线线径计算得到导/地线的型号；达到能够在不影响导/地线正常运行的情况下,准确测量输电线路导/地线的线径,其操作简单且测量精度高、安全可靠。(The invention discloses a method, a device, equipment and a medium for measuring the wire diameter of a lead/ground wire, and the technical scheme is as follows: shooting the outer side surface of the suspension clamp of the lead/ground wire hanging point by using an RTK unmanned aerial vehicle to obtain a hanging point image of the lead/ground wire; selecting a suspension clamp of the lead/ground wire as a reference object in the hanging point image to obtain the pixel size of the lead/ground wire; calculating according to the pixel size and the actual length of the lead/ground wire suspension clamp to obtain the wire diameter and the ground wire diameter; calculating the type of the lead/ground wire according to the wire diameter of the lead and the wire diameter of the ground wire; the method can accurately measure the wire diameter of the conducting wire/ground wire of the power transmission line under the condition of not influencing the normal operation of the conducting wire/ground wire, and has the advantages of simple operation, high measurement precision, safety and reliability.)

1. A method for measuring the diameter of a lead/ground wire, the method comprising:

shooting the outer side surface of the suspension clamp of the lead/ground wire hanging point by using an RTK unmanned aerial vehicle to obtain a hanging point image of the lead/ground wire;

selecting a suspension clamp of the lead/ground wire as a reference object in the hanging point image to obtain the pixel size of the lead/ground wire;

calculating according to the pixel size and the actual length of the lead/ground wire suspension clamp to obtain the wire diameter and the ground wire diameter;

and calculating the type of the lead/ground wire according to the wire diameter of the lead and the wire diameter of the ground wire.

2. The method for measuring the wire diameter of the lead/ground wire as claimed in claim 1, wherein an RTK unmanned aerial vehicle is used for determining a reference surface of the position of a tower hanging point of the lead/ground wire to be measured, and the reference surface is the outer side surface of a suspension clamp of the lead/ground wire hanging point.

3. The method for measuring the wire diameter of the lead/ground wire according to claim 1, wherein the shooting distance of the RTK unmanned aerial vehicle to the outer side surface of the lead/ground wire suspension point suspension clamp is 2-3 m.

4. The method of claim 1 wherein the pixel size of the ground/lead wire includes the pixel size of the ground/lead suspension clamp and the ground/lead wire diameter.

5. The method as claimed in claim 1, wherein the calculation formula of the wire diameter of the wire is H₁＝S₁/L₁*D₁The calculation formula of the ground wire diameter is H₂＝S₂/L₂*D₂(ii) a Wherein S is₁Indicating the actual length of the wire suspension clamp, S₂Representing the actual length of the ground suspension clamp, L₁Denotes the pixel size of the wire suspension clamp, L₂Indicating the pixel size of the ground suspension clamp, D₁Pixel size, D, representing wire diameter₂The pixel size of the ground wire path is indicated.

6. The method as claimed in claim 1, wherein the calculation formula of the type of the wire isThe calculation formula of the ground wire model isWherein H₁Indicates the wire diameter of the wire H₂Representing the ground wire diameter.

7. A wire/ground wire diameter measuring device for performing the method, the device comprising:

the image acquisition module is used for controlling the RTK unmanned aerial vehicle to shoot the outer side face of the suspension clamp of the hanging point of the lead/ground wire and acquiring the hanging point image of the lead/ground wire;

the pixel size measuring module is used for selecting the suspension clamp of the lead/ground wire as a reference object in the hanging point image and acquiring the pixel size of the lead/ground wire;

the wire diameter calculating module is used for calculating the wire diameter and the ground wire diameter according to the pixel size and the actual length of the lead/ground wire suspension clamp;

and the model calculation module is used for calculating the model of the lead/ground wire according to the wire diameter of the lead and the wire diameter of the ground wire.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of measuring a wire/ground wire diameter according to any one of claims 1 to 6 when executing the computer program.

9. A computer-readable storage medium storing computer-readable instructions that, when executed, perform the operations of a method of wire/ground wire diameter measurement according to any one of claims 1 to 6.

Technical Field

The invention relates to the field of detection and analysis of a ground wire of a power transmission line, in particular to a method, a device, equipment and a medium for measuring the wire diameter of the ground wire.

Background

With the continuous development of urbanization construction, the requirement on the reliability of power supply of a power transmission line is higher and higher. The power transmission ground/wire diameter is used as an important equipment parameter and is very critical to the daily operation and maintenance of the line and the power first-aid repair construction. The existing transmission/ground wire diameter measurement mainly obtains a wire diameter value by measuring the cross section of a ground wire by a micrometer or a vernier caliper and the like when a person climbs a tower after power failure, or looks up the ground wire/lead wire in high altitude by naked eyes, and judges the type and specification of the ground wire/lead wire through experience. The method has the defects of power failure, complex operation, high error rate, low safety coefficient of high-altitude operation and the like, brings inconvenience to the daily operation and maintenance and emergency repair work of the power transmission line, and reduces the work efficiency and the power supply reliability.

Disclosure of Invention

The invention aims to solve the technical problem that the wire diameter of the existing conducting/grounding wire can be measured only when power is cut off, and aims to provide a method, a device, equipment and a medium for measuring the wire diameter of the conducting/grounding wire.

The technical purpose of the invention is realized by the following technical scheme:

a method of conducting/grounding wire diameter measurement, the method comprising:

shooting the outer side surface of the suspension clamp of the lead/ground wire hanging point by using an RTK unmanned aerial vehicle to obtain a hanging point image of the lead/ground wire;

selecting a suspension clamp of the lead/ground wire as a reference object in the hanging point image to obtain the pixel size of the lead/ground wire;

calculating according to the pixel size and the actual length of the lead/ground wire suspension clamp to obtain the wire diameter and the ground wire diameter;

and calculating the type of the lead/ground wire according to the wire diameter of the lead and the wire diameter of the ground wire.

The existing transmission/ground wire diameter measurement mainly obtains a wire diameter value by manually climbing a tower after power failure and measuring the cross section of a guide/ground wire by using a micrometer or a vernier caliper and the like, or checks the guide/ground wire in high altitude by naked eyes, and judges the type and specification of the guide/ground wire through experience. The method comprises the steps that an RTK unmanned aerial vehicle is adopted to carry a high-definition camera to determine a datum plane of a tower hanging point position of a to-be-detected ground wire, the datum plane is the outer side surface of a suspension clamp of the hanging point of the ground wire, the RTK unmanned aerial vehicle is controlled to shoot a high-definition image of the outer side surface of the suspension clamp of the hanging point of the ground wire, then the high-definition image of the outer side surface of the suspension clamp of the hanging point of the ground wire is shot, the suspension clamp of the ground wire is selected as a reference object in the high-definition image, and the pixel size of the suspension clamp of the ground wire and the pixel size of the wire diameter are obtained through measurement of the reference object; the pixel size of the ground wire suspension clamp and the pixel size of the ground wire diameter are known lengths, so that a calculation formula of the ground wire diameter is obtained through the actual lengths of the lead/ground wire suspension clamp and the pixel size of the lead/ground wire suspension clamp, the pixel size of the lead/ground wire and the actual length are correspondingly brought into the calculation formula, the wire diameter of the lead/ground wire can be calculated, the sectional area of the lead/ground wire can be obtained through the calculated wire diameter, the type of the lead/ground wire can be obtained, and the measurement of the radius of the lead/ground wire of the power transmission line can be accurately measured under the condition that the normal operation of the lead/ground wire is not influenced.

Further, a RTK unmanned aerial vehicle is adopted to determine a reference surface of the position of a tower hanging point of the lead/ground wire to be detected, wherein the reference surface is the outer side surface of a suspension clamp of the hanging point of the lead/ground wire.

Further, the shooting distance of the RTK unmanned aerial vehicle to the outer side face of the suspension clamp of the guide/ground wire hanging point is 2-3 m.

Further, the pixel size of the lead/ground wires includes the pixel size of the lead/ground wire suspension clamp and the pixel size of the lead/ground wire diameter.

Further, the calculation formula of the wire diameter of the wire is H₁＝S₁/L₁*D₁The calculation formula of the ground wire diameter is H₂＝S₂/L₂*D₂(ii) a Wherein S is₁Indicating the actual length of the wire suspension clamp, S₂Representing the actual length of the ground suspension clamp, L₁Denotes the pixel size of the wire suspension clamp, L₂Indicating the pixel size of the ground suspension clamp, D₁Pixel size, D, representing wire diameter₂The pixel size of the ground wire path is indicated.

Further, the calculation formula of the lead model isThe calculation formula of the ground wire model isWherein H₁Indicates the wire diameter of the wire H₂Representing the ground wire diameter.

A wire/ground wire diameter measuring device for performing the method, the device comprising:

the image acquisition module is used for controlling the RTK unmanned aerial vehicle to shoot the outer side face of the suspension clamp of the hanging point of the lead/ground wire and acquiring the hanging point image of the lead/ground wire;

the pixel size measuring module is used for selecting the suspension clamp of the lead/ground wire as a reference object in the hanging point image and acquiring the pixel size of the lead/ground wire;

the wire diameter calculating module is used for calculating the wire diameter and the ground wire diameter according to the pixel size and the actual length of the lead/ground wire suspension clamp;

and the model calculation module is used for calculating the model of the lead/ground wire according to the wire diameter of the lead and the wire diameter of the ground wire.

An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of wire/ground wire diameter measurement when executing the computer program.

A computer-readable storage medium storing computer-readable instructions that, when executed, perform operations of a method of measuring a wire/ground wire diameter.

Compared with the prior art, the invention has the following beneficial effects:

the RTK unmanned aerial vehicle carries the high-definition camera to shoot hanging point high-definition images of the left side and the right side of the lead/ground wire, the suspension clamp is selected from the hanging point images as a reference object, the reference object is used as the reference point to measure and obtain the pixel size of the suspension clamp of the lead/ground wire, then the wire diameter of the lead/ground wire can be calculated according to a pixel size and actual length matching formula, the model of the lead/ground wire can be calculated according to the pixel size of the lead/ground wire, the wire diameter of the lead/ground wire of the power transmission line can be accurately measured under the condition that the normal operation of the lead/ground wire is not influenced, and the RTK unmanned aerial vehicle is simple to operate, high in measuring precision, safe and reliable.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a flow chart of a method for measuring the wire diameter of a ground wire according to the present invention;

FIG. 2 is a diagram of selected traces in an embodiment of the present invention;

FIG. 3 is a floor map selected for use in embodiments of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

In this embodiment, a method for measuring a wire diameter of a conducting/grounding wire is provided, as shown in fig. 1, the method includes:

step S1, shooting the outer side surface of the suspension clamp of the lead/ground wire hanging point by using an RTK unmanned aerial vehicle to obtain a hanging point image of the lead/ground wire;

step S2, selecting a suspension clamp of the lead/ground wire as a reference object in the hanging point image, and acquiring the pixel size of the lead/ground wire;

step S3, calculating the wire diameter and the ground wire diameter according to the pixel size and the actual length of the lead/ground wire suspension clamp;

and step S4, calculating the type of the lead/ground wire according to the wire diameter of the lead wire and the wire diameter of the ground wire.

Specifically, in step S1, the shooting may be performed by manual control or by automatic control, and the setting of the shooting target point by automatic control is common knowledge and will not be described herein again.

Preferably, the RTK unmanned aerial vehicle is adopted to determine a reference plane of the position of the tower hanging point of the lead/ground wire to be measured, and the reference plane is the outer side face of the suspension clamp of the hanging point of the lead/ground wire.

Specifically, the reference plane can be determined when the shooting tripod head angle is 0 °.

Preferably, the shooting distance of the RTK unmanned aerial vehicle to the outer side face of the suspension clamp of the guide/ground wire hanging point is 2-3 m.

Preferably, the pixel size of the conductive/ground lines includes the pixel size of the conductive/ground suspension clamp and the conductive/ground line diameter.

Preferably, the calculation formula of the wire diameter of the wire is H₁＝S₁/L₁*D₁The calculation formula of the ground wire diameter is H₂＝S₂/L₂*D₂(ii) a Wherein S is₁Indicating the actual length of the wire suspension clamp, S₂Representing the actual length of the ground suspension clamp, L₁Denotes the pixel size of the wire suspension clamp, L₂Indicating the pixel size of the ground suspension clamp, D₁Pixel size, D, representing wire diameter₂The pixel size of the ground wire path is indicated.

Preferably, the calculation of the wire type isThe calculation formula of the ground wire model isWherein H₁Indicates the wire diameter of the wire H₂Representing the ground wire diameter.

The present embodiment also provides a device for measuring a wire diameter of a conducting/grounding wire, which is used for executing the method, and the device comprises:

the image acquisition module is used for controlling the RTK unmanned aerial vehicle to shoot the outer side face of the suspension clamp of the hanging point of the lead/ground wire and acquiring the hanging point image of the lead/ground wire;

the pixel size measuring module is used for selecting the suspension clamp of the lead/ground wire as a reference object in the hanging point image and acquiring the pixel size of the lead/ground wire;

the wire diameter calculating module is used for calculating the wire diameter and the ground wire diameter according to the pixel size and the actual length of the lead/ground wire suspension clamp;

and the model calculation module is used for calculating the model of the lead/ground wire according to the wire diameter of the lead and the wire diameter of the ground wire.

The present embodiment also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements a method for measuring a wire/ground wire diameter when executing the computer program.

The present embodiment also provides a computer-readable storage medium for storing computer-readable instructions, which when executed perform operations of a method for measuring a wire/ground wire diameter.

The working principle is as follows: controlling the RTK unmanned aerial vehicle to shoot a high-definition image on the outer side face of the suspension clamp of the side lead ground wire hanging point, then shooting the high-definition image on the outer side face of the suspension clamp of the side lead ground wire hanging point, selecting the selected suspension clamp of the side lead ground wire as a reference object in the high-definition image, and obtaining the pixel size of the suspension clamp of the lead ground wire and the pixel size of the wire diameter of the lead ground wire through the measurement of the reference object; the pixel size of the ground wire suspension clamp and the pixel size of the ground wire diameter are known lengths, so that a calculation formula of the ground wire diameter is obtained according to the actual length of the lead/ground wire suspension clamp and the pixel size of the lead/ground wire suspension clamp, the pixel size of the lead/ground wire and the actual length are correspondingly brought into the calculation formula, the wire diameter of the lead/ground wire can be calculated, and the sectional area of the lead/ground wire can be obtained through the calculated wire diameter, so that the model of the lead/ground wire can be obtained.

Example two

In the second embodiment, based on the method for measuring the wire diameter of the conducting/grounding wire provided in the first embodiment, the unmanned aerial vehicle is used for fine photographing of the suspension point of the conducting/grounding wire of a certain 220kV power transmission line, the actual size of the conducting wire suspension clamp is set to 300mm, as shown in fig. 2, the pixel size of the conducting wire suspension clamp obtained through measurement is 448.84, the pixel size of the wire diameter of the conducting wire is 42.46, and the calculation formula H is used for further describing the method according to₁＝S₁/L₁*D₁The wire diameter of the wire was calculated to be 28.38 mm.

As shown in fig. 3, the actual size of the ground suspension clamp was set to 200mm, the pixel size of the ground suspension clamp was measured to be 209.05, and the pixel size of the ground wire diameter was measured to be 8.55, according to the calculation formula H₂＝S₂/L₂*D₂The ground wire diameter was calculated to be 8.18 mm.

According to the above-mentioned wire diameter, calculating formulaThe cross-sectional area of the wire was calculated to be 632.26mm²That is, the type of the lead is M₁632.26, calculated from said ground wire pathThe sectional area of the ground wire is calculated to be 50.24mm²That is, the type of the lead is M₂-50.24, inquiring the design data to obtain the wire model design value M₁₁630, design value of ground wire model M₂₂And 50, within the error range, the result is correct.

In conclusion, the measuring method provided by the invention can accurately measure the wire diameter of the conducting wire/ground wire of the power transmission line under the condition of not influencing the normal operation of the conducting wire/ground wire, and has the advantages of simple operation, high measuring precision, safety and reliability.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.