CN111832946A - Wiring technology quantitative scoring system and method based on machine vision - Google Patents
Wiring technology quantitative scoring system and method based on machine vision Download PDFInfo
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Abstract
The utility model provides a wiring technology quantitative scoring system based on machine vision, which belongs to the technical field of wiring evaluation and comprises an image acquisition device and a data terminal, wherein the image acquisition device is communicated with the data terminal; the image acquisition device is arranged relative to the wiring control cabinet and used for acquiring image data of a wiring result and sending the image data to the data terminal in real time, and the data terminal judges the wiring condition by utilizing a preset image reference surface according to the received image data and outputs a wiring grading result; the angle of each line is accurately measured through a machine vision algorithm, the specific angle value of each line can be obtained, and the objectivity evaluation on the line is realized.
Description
Technical Field
The disclosure relates to the technical field of wiring evaluation, in particular to a wiring process quantitative scoring system and method based on machine vision.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The meter installing and connecting electrician is a basic work type in an electric power enterprise, the wiring of the electric energy metering device is an important post operating skill of a metering personnel, and for the installation of the electric energy metering device, the wiring correctness and the wiring layout are ensured to be attractive, and the later maintenance, namely the wiring manufacturability is convenient.
The inventor of the disclosure finds that when the measurement personnel perform training evaluation at present, all the evaluation of wiring processes are performed in a manual mode, the horizontal and vertical and the front and back layout of the wiring are evaluated in a manual mode, a basic influence factor serving as the manual evaluation is certain subjectivity, and meanwhile, a plurality of detail differences cannot be distinguished through human eyes.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a wiring process quantitative scoring system and method based on machine vision, the angle of each wire is accurately measured through a machine vision algorithm, the specific angle value of each wire can be obtained, and the objectivity evaluation on the wiring is realized.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
the first aspect of the disclosure provides a wiring process quantitative scoring system based on machine vision.
A wiring technology quantitative scoring system based on machine vision comprises an image acquisition device and a data terminal, wherein the image acquisition device is communicated with the data terminal;
the image acquisition device is used for acquiring image data of the wiring result and sending the image data to the data terminal in real time, and the data terminal judges the wiring condition by utilizing a preset image reference surface according to the received image data and outputs a wiring grading result.
The second aspect of the disclosure provides a wiring process quantitative scoring method based on machine vision.
A wiring process quantitative scoring method based on machine vision utilizes the scoring system of the first aspect of the disclosure, and comprises the following steps:
the image acquisition device is arranged at a non-working position, and after the wiring operation is finished, the camera turns to an acquisition position and is positioned to acquire a wiring image;
after the image is acquired, the image is transmitted to a data terminal in real time, the image is analyzed by the center of the data terminal, and the horizontal and vertical angles of each line can be measured through a position detection algorithm;
and (4) scoring each line according to the scoring standard of evaluation, then calculating the final score, and displaying the final score on a display screen in real time.
Compared with the prior art, the beneficial effect of this disclosure is:
1. according to the system and the method, the angle of each line is accurately measured through a machine vision algorithm, the specific angle value of each line can be obtained, the objectivity evaluation on the connection line is realized, and the accuracy and the fairness of the connection line evaluation are ensured.
2. According to the system and the method, the collection position of the image collection device is fixed, the reference surface is preset, so that each wiring in the collected image data can be calibrated and scored quickly according to the reference surface, and the image collection device and the reference surface are fixed, so that the data terminal can evaluate each individual wiring result quickly according to the same standard, the accuracy of the evaluation result is guaranteed, and the evaluation efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a machine vision-based wiring process quantitative scoring system provided in embodiment 1 of the present disclosure.
Fig. 2 is a schematic structural diagram of a bracket of the image capturing device during a wiring operation according to embodiment 1 of the present disclosure.
Fig. 3 is a schematic diagram of a connecting part of the image capturing device during photographing after the termination of the wiring operation provided in embodiment 1 of the present disclosure.
Fig. 4 is a graph illustrating the effect of the quantitative scoring result of the wiring process based on machine vision according to embodiment 2 of the present disclosure.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
Example 1:
as shown in fig. 1, an embodiment 1 of the present disclosure provides a wiring process quantitative scoring system based on machine vision, including an image acquisition device and a data terminal, where the image acquisition device is in communication with the data terminal;
the image acquisition device is arranged relative to the wiring control cabinet and used for acquiring image data of a wiring result and sending the image data to the data terminal in real time, and the data terminal judges the wiring condition by utilizing a preset image reference surface according to the received image data and outputs a wiring grading result.
The judgment result of the wiring comprises one or more of the levelness and the verticality of each line, the spacing distance of each line, the distance of the central line of each line and the horizontal angle and the vertical angle of each line.
In this embodiment, the horizontal angle and the vertical angle of each connection line are evaluated, and of course, those skilled in the art may also realize other connection line data collection and analysis according to the technical solution described in the present application.
The image acquisition device is arranged on the wiring control cabinet through the support, when measurement is needed, the shooting range of the camera of the image acquisition device comprises a wiring position and a preset reference surface, the image acquisition device is movably fixed on the wiring control cabinet through the support, during wiring operation, the image acquisition device is far away from the wiring operation area, an effect diagram is shown in figure 4, when wiring is finished, the image acquisition device shoots the wiring operation position, and the camera or the camera is connected with the connecting piece in figure 3 through the support in figure 2.
When the wiring control cabinet is used for collecting the images, the relative positions of the image collecting device and the wiring control cabinet are the same, the position of the preset reference surface shot by the camera is kept unchanged, the consistency of the angle and the position of the shot images at each time is ensured, and the objectivity of the wiring evaluation of each wiring operator is ensured.
In this embodiment, the bottom surface of the wiring control cabinet is used as a reference surface to perform horizontal and vertical measurement, the calibration board is placed on the bottom surface of the control cabinet, the conversion relationship between the camera coordinate and the earth coordinate is calculated according to the data collected from the calibration board, and the data terminal can realize the position standard of the wiring on each acquired image according to the obtained conversion relationship, so that the accuracy of labeling is ensured.
It can be understood that in some other embodiments, other surfaces may also be used as reference surfaces, such as side surfaces of the control cabinet, as long as a surface on the control cabinet or a surface with a position unchanged relative to the control cabinet can be selected, and a person skilled in the art may design the reference surfaces according to specific working conditions, and details are not described here.
The image acquisition device is in communication connection with the data terminal through the switch, and the data terminal marks the image judgment result and then displays the image judgment result on the display screen in real time.
The image acquisition device is provided with a light source for realizing light supplement during shooting, and in the embodiment, the light source is arranged around the camera.
Example 2:
the embodiment 2 of the disclosure provides a wiring process quantitative scoring method based on machine vision, and the scoring system in the embodiment 1 of the disclosure is utilized;
the industrial camera is arranged at a non-working position, so that the competition personnel can conveniently carry out specific wiring operation, the camera turns to a collecting position and is positioned after the wiring operation is finished, the position of each positioning is the same, and meanwhile, the position of the control box is ensured to be unchanged;
acquiring a wiring image by using a camera, transmitting the acquired image to a data terminal through a gigabit network, analyzing the image by the data terminal, and measuring the horizontal and vertical angles of each wire by using a position detection algorithm;
scoring each line according to the scoring standard of evaluation, and then calculating the final score;
the scores are displayed on a large display screen, the score conditions of all lines can be displayed simultaneously, and meanwhile, the related data can also be stored in a database for further analysis and statistics in the follow-up process.
The specific algorithm flow is as follows:
the method comprises the following steps that a reference coordinate is required to be selected for measuring angle and other wiring processes, and the bottom surface of a wiring panel of a control cabinet is selected according to the actual situation on site according to the test standard of the project;
the standard calibration plate is placed on a bottom plate, the conversion relation between the camera coordinate and the earth coordinate, namely the calibration coefficient, is calculated according to the data collected from the calibration plate, and all the subsequent collected data can be calculated according to the calibration coefficient to obtain physical data;
specifically, a calibration plate can be placed on a reference point to calibrate an area to be measured before position detection, because the coordinates of each point of the calibration plate are known, firstly, the image of each point of the calibration plate is collected, and then the size of the coordinate point of the calibration plate is determined according to the actual size of the coordinate point of the calibration plate, so that a coordinate system can be established, and the actual size can be converted into the actual size according to the collected image in the coordinate system according to the conversion relation of the calibration plate, so that the position measurement is realized.
As shown in fig. 4, each dark color line segment is a calibration result, and the angle of the line segment can be obtained, then the corresponding wiring score is calculated according to the scoring standard, and the scoring results of all the wirings are accumulated to obtain the final scoring result.
In the embodiment, machine identification is adopted to replace manual subjective judgment, and an objective digital form is adopted to express, so that the evaluation work is fairer and more fair.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A wiring technology quantitative scoring system based on machine vision is characterized by comprising an image acquisition device and a data terminal, wherein the image acquisition device is communicated with the data terminal;
the image acquisition device is configured to acquire image data of a wiring result and send the image data to the data terminal in real time, and the data terminal judges the wiring condition by utilizing a preset image reference surface according to the received image data and outputs a wiring grading result.
2. The machine-vision-based quantitative scoring system for the wire connection process of claim 1, wherein the wire connection condition comprises one or more of levelness and verticality of each wire, separation distance of wires, distance of center lines of wires, and horizontal angle and vertical angle of each wire.
3. The wiring process quantitative scoring system based on machine vision as claimed in claim 1, wherein the image acquisition device is arranged on the wiring control cabinet through a bracket, and when measurement is needed, the shooting range of the camera of the image acquisition device comprises a wiring position and a preset reference surface.
4. The machine vision-based wiring process quantitative scoring system as claimed in claim 3, wherein the relative position of the image acquisition device and the wiring control cabinet is the same at each acquisition, and the position of the preset reference plane shot by the camera is kept unchanged.
5. The machine vision-based wiring process quantitative scoring system as claimed in claim 1, wherein horizontal and vertical measurements are performed with the bottom surface of the wiring control cabinet as a reference surface, a calibration board is placed on the bottom surface of the control cabinet, a conversion relationship between camera coordinates and earth coordinates is calculated based on data collected from the calibration board, and the data terminal calibrates all the acquired image data based on the obtained conversion relationship.
6. The machine vision-based wiring process quantitative scoring system as claimed in claim 1, wherein the image acquisition device is in communication connection with a data terminal through a switch, and the data terminal displays the image judgment result on a display screen in real time after labeling.
7. The machine vision-based wiring process quantitative scoring system as claimed in claim 1, wherein the image acquisition device is movably fixed on the wiring control cabinet through a bracket, the image acquisition device is far away from a wiring operation area during wiring operation, and the image acquisition device is used for shooting a wiring operation position when wiring is finished.
8. The machine vision-based wiring process quantitative scoring system as claimed in claim 1, wherein a light source is provided on the image acquisition device.
9. A wiring process quantitative scoring method based on machine vision, which is characterized in that the scoring system of any one of claims 1-8 is used, and the method comprises the following steps:
the image acquisition device is arranged at a non-working position, and after the wiring operation is finished, the camera turns to an acquisition position and is positioned to acquire a wiring image;
after the image is acquired, the image is transmitted to a data terminal in real time, the image is analyzed by the center of the data terminal, and the horizontal and vertical angles of each line can be measured through a position detection algorithm;
and (4) scoring each line according to the scoring standard of evaluation, then calculating the final score, and displaying the final score on a display screen in real time.
10. The machine vision-based wiring process quantitative scoring method as claimed in claim 9, wherein the position detection algorithm is specifically:
obtaining a conversion relation between the camera coordinate and the earth coordinate by using the bottom surface reference surface of the control box;
calculating the position coordinates of each wiring in each image relative to the reference surface according to the obtained conversion relation;
and acquiring the wiring angle of each wiring according to the position coordinate of each wiring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010680895.3A CN111832946A (en) | 2020-07-15 | 2020-07-15 | Wiring technology quantitative scoring system and method based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010680895.3A CN111832946A (en) | 2020-07-15 | 2020-07-15 | Wiring technology quantitative scoring system and method based on machine vision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117334099A (en) * | 2023-10-31 | 2024-01-02 | 广州工程技术职业学院 | Intelligent teaching method and device for electric control circuit, equipment and storage medium |
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| CN109741325A (en) * | 2019-01-14 | 2019-05-10 | 南京理工大学 | A kind of wiring verticality intelligent detecting method |
| CN110119680A (en) * | 2019-04-03 | 2019-08-13 | 上海工程技术大学 | A kind of electrical cabinet wiring automatic errordetecting system based on image recognition |
| CN110954552A (en) * | 2018-09-27 | 2020-04-03 | 联合汽车电子有限公司 | Jumper wire detection device, jumper wire detection system and jumper wire detection method |
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2020
- 2020-07-15 CN CN202010680895.3A patent/CN111832946A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107481223A (en) * | 2017-07-21 | 2017-12-15 | 中车青岛四方机车车辆股份有限公司 | A kind of method and device of wiring state image automatic identification |
| CN110954552A (en) * | 2018-09-27 | 2020-04-03 | 联合汽车电子有限公司 | Jumper wire detection device, jumper wire detection system and jumper wire detection method |
| CN109741325A (en) * | 2019-01-14 | 2019-05-10 | 南京理工大学 | A kind of wiring verticality intelligent detecting method |
| CN110119680A (en) * | 2019-04-03 | 2019-08-13 | 上海工程技术大学 | A kind of electrical cabinet wiring automatic errordetecting system based on image recognition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117334099A (en) * | 2023-10-31 | 2024-01-02 | 广州工程技术职业学院 | Intelligent teaching method and device for electric control circuit, equipment and storage medium |
| CN117334099B (en) * | 2023-10-31 | 2024-05-10 | 广州工程技术职业学院 | Intelligent teaching method and device for electric control circuit, equipment and storage medium |
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Application publication date: 20201027 |