An automated insulator creepage distance measurement system and method

Abstract

The present invention discloses an automated measuring system for the creepage distance of insulators, comprising: a transfer device, an identification device, a sample stage, a three-dimensional scanning terminal, and a system control server. The system control server controls the sample stage to adjust its carrying position according to the characteristic information of the insulator under test obtained by the identification device. After placing the insulator under test on the sample stage, the three-dimensional scanning terminal is started to obtain the three-dimensional information of the insulator under test, and finally the creepage distance is calculated. The present invention also discloses a method for measuring the creepage distance of an automated insulator, comprising: identifying the characteristic information of the insulator under test; adjusting the sample stage; placing the insulator under test on the sample stage; obtaining three-dimensional information; and calculating the creepage distance. During the testing process, automatic feeding, clamping, and measurement of the creepage distance of the insulator under test can be realized, reducing the participation of personnel, lowering the labor intensity, improving the work efficiency, and having a high measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of insulators, and particularly to an automated insulator creepage distance measurement system and method. Background Art

[0002] An insulator is an important insulating control component in an overhead transmission line. The creepage distance is an important indicator for evaluating the safety of an insulator. The creepage distance refers to the shortest distance along the outer surface contour of the insulation between two electrodes that normally withstand the operating voltage.

[0003] Currently, for the measurement of the creepage distance of an insulator, a metal wire or a tape is mainly used to wrap around the surface of the insulator from top to bottom to replicate the shape of the outer contour of the insulator, and then the length of the metal wire or the tape is measured. However, the outer contour shape of the insulator is complex, and generally, there are large measurement errors and low measurement efficiency in the above measurement methods. Summary of the Invention

[0004] The purpose of the present invention is to provide an automated insulator creepage distance measurement system and method, which can effectively improve the measurement accuracy of the creepage distance of an insulator.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] An automated insulator creepage distance measurement system includes: a transfer device, an identification device, a sample stage, a three-dimensional scanning terminal, and a system control server. The transfer device, the identification device, the sample stage, and the three-dimensional scanning terminal are respectively connected to the system control server. The identification device is used to identify the characteristic information of the insulator to be measured. The system control server is used to control the sample stage to adjust its carrying position according to the characteristic information, and control the transfer device to place the insulator to be measured on the carrying position of the sample stage. The three-dimensional scanning terminal is used to obtain the three-dimensional information of the insulator to be measured, and the system control server is used to obtain the creepage distance of the insulator to be measured according to the three-dimensional information.

[0007] Preferably, the sample stage includes a fixed loading stage, a movable loading stage, and a driving device. The driving device is used to control the movement of the movable loading stage to adjust the distance between the movable loading stage and the fixed loading stage, so as to adapt to insulators to be measured with different lengths.

[0008] Preferably, the sample stage further includes a guide rail. The movable loading stage is slidably connected to the guide rail. The driving device includes a stepping motor and a lead screw. The lead screw is threadedly connected to the movable loading stage, and the stepping motor is used to drive the lead screw to rotate to drive the movable loading stage to move on the guide rail.

[0009] Preferably, the identification device includes a positioning and identification camera and a first robotic arm. The positioning and identification camera is disposed on the first robotic arm, and the first robotic arm is used to adjust the position of the positioning and identification camera. The positioning and identification camera is used to identify the characteristic information of the insulator under test.

[0010] Preferably, the transfer device includes a second robotic arm. The second robotic arm is used to pick up and place the insulator under test, and the three-dimensional scanning terminal is disposed on the second robotic arm.

[0011] Preferably, it further includes a sample area for placing a plurality of insulating terminals to be tested. The second robotic arm is used to identify the insulator under test in the sample area and transfer it to the sample stage.

[0012] An automated method for measuring the creepage distance of an insulator includes the following steps:

[0013] Identify the characteristic information of the insulator under test;

[0014] According to the characteristic information, adjust the sample stage to adapt to carrying the insulator under test;

[0015] Place the insulator under test on the sample stage through the transfer device;

[0016] Obtain the three-dimensional information of the insulator under test;

[0017] According to the three-dimensional information, obtain the creepage distance of the insulator under test.

[0018] Preferably, the step of obtaining the creepage distance of the insulator under test according to the three-dimensional information includes:

[0019] According to the three-dimensional information, perform three-dimensional modeling on the insulator under test to obtain three-dimensional model information;

[0020] According to the three-dimensional model information, obtain the axial section information;

[0021] According to the axial section information and the curve characteristics of the insulator under test, identify the connection points between the insulating material and the connecting material of the insulator under test, and obtain the curve part where the creepage distance needs to be measured;

[0022] Calculate the creepage distance according to the curve integral algorithm.

[0023] Compared with the prior art, the above technical solution has the following advantages:

[0024] An automated insulator creepage distance measurement system provided by the present invention, when in operation, starts the system control server. The identification device can identify the characteristic information of the insulator to be measured. Then, the system control server controls the sample stage to adjust its carrying position according to the characteristic information to adapt to the insulator to be measured. Subsequently, it controls the transfer device to place the insulator to be measured on the carrying position of the sample stage. Then, the system control server starts the three-dimensional scanning terminal to obtain the three-dimensional information of the insulator to be measured. Finally, the system control server obtains the creepage distance of the insulator to be measured according to the three-dimensional information. During the testing process, it can automatically realize the automatic feeding, clamping and measurement of the creepage distance of the insulator to be measured, reduce the participation of personnel, lower the labor intensity, improve the work efficiency, and have a high measurement accuracy.

[0025] An automated insulator creepage distance measurement method provided by the present invention can realize the automatic identification of the insulator to be measured, the automatic adjustment of the sample stage, the automatic handling of the insulator to be measured to the sample stage, automatic scanning and calculation of the creepage distance, reduce the participation of personnel, reduce the subjective factors of personnel during the test process, make the data more objective, and at the same time lower the labor intensity. In addition, compared with the manual measurement method, the creepage distance measurement based on a high-precision three-dimensional model has the characteristics of automation, high efficiency and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of an automated insulator creepage distance measurement system provided by a specific embodiment of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the sample stage of an automated insulator creepage distance measurement system provided by a specific embodiment of the present invention;

[0029] Figure 3 It is a schematic flow diagram of an automated insulator creepage distance measurement method provided by a specific embodiment of the present invention.

[0030] The reference numerals are as follows:

[0031] 1 is an integrated chassis, 2 is a display operation interface, 3 is a server, 4 is a sample area, 5 is a first robotic arm, 6 is a positioning and identification camera, 7 is a second robotic arm, 8 is a 3D scanning terminal, 9 is a sample stage, 9-1 is a fixed loading stage, 9-2 is a movable loading stage, 9-3 is a stepping motor, 9-4 is a lead screw, 9-5 is a guide rail, and 10 is an insulator under test. Specific Embodiment

[0032] In order to make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0033] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Please refer to Figure 1 and Figure 2 , Figure 1 which are the structural schematic diagrams of an automated insulator creepage distance measurement system provided by a specific embodiment of the present invention; Figure 2 which is the structural schematic diagram of the sample stage of an automated insulator creepage distance measurement system provided by a specific embodiment of the present invention.

[0035] A specific embodiment of the present invention provides an automated insulator creepage distance measurement system, including: a transfer device, an identification device, a sample stage 9, a 3D scanning terminal 8, and a system control server 3, wherein the transfer device, the identification device, the sample stage 9, and the 3D scanning terminal 8 are respectively connected to the system control server 3. During operation, the system control server 3 is started, and the identification device can identify the characteristic information of the insulator under test 10. Then, the system control server 3 controls the sample stage 9 to adjust its loading position according to the characteristic information to adapt to the insulator under test 10. Subsequently, the transfer device is controlled to place the insulator under test 10 on the loading position of the sample stage 9. Then, the system control server 3 starts the 3D scanning terminal 8 to obtain the 3D information of the insulator under test 10. Finally, the system control server 3 obtains the creepage distance of the insulator under test 10 according to the 3D information. During the testing process, the automatic feeding, clamping, and creepage distance measurement of the insulator under test 10 can be automatically realized, reducing the participation of personnel, lowering the labor intensity, improving the work efficiency, and having a high measurement accuracy.

[0036] In an embodiment of the present invention, it further includes an integrated chassis 1. A transfer device, an identification device, a sample stage 9, a three-dimensional scanning terminal 8, a system control server 3, and a power supply are arranged inside the integrated chassis 1. A display operation interface 2 is provided on the integrated chassis 1. The display operation interface 2 can be used for information entry of the insulator under test 10, identification of experimenters, and output of experiment result reports, etc. A sample area 4 for placing a plurality of insulating terminals to be tested is also arranged inside the integrated chassis 1. The transfer device can identify the insulator under test in the sample area 4 and transfer it onto the sample stage 9.

[0037] Among them, the sample stage 9 includes a fixed loading stage 9-1, a movable loading stage 9-2, and a driving device. The driving device is connected to the system control server 3. When the system control server 3 receives the characteristic information of the insulator under test 10 obtained by the transfer device, it can control the movement of the movable loading stage 9-2 through the driving device to adjust the distance between the movable loading stage 9-2 and the fixed loading stage 9-1, so as to adapt to insulators under test 10 of different lengths.

[0038] In addition, the sample stage 9 further includes a guide rail 9-5. The movable loading stage 9-2 is slidably connected to the guide rail 9-5. The driving device includes a stepping motor 9-3 and a lead screw 9-4. The lead screw 9-4 is threadedly connected to the movable loading stage 9-2. The stepping motor 9-3 is connected to the system control server 3. The stepping motor 9-3 can drive the lead screw 9-4 to rotate to drive the movable loading stage 9-2 to move on the guide rail 9-5. The guide rail 9-5 can ensure the smooth movement of the movable loading stage 9-2.

[0039] Furthermore, the identification device includes a positioning and identification camera 6 and a first robotic arm 5. The positioning and identification camera 6 and the first robotic arm 5 are connected to the system control server 3. The positioning and identification camera 6 is arranged on the first robotic arm 5. The first robotic arm 5 can adjust the position of the positioning and identification camera 6. The positioning and identification camera 6 can identify the characteristic information of the insulator under test 10. The characteristic information includes the length of the insulator under test 10.

[0040] Among them, the transfer device includes a second robotic arm 7. The three-dimensional scanning terminal 8 is arranged on the second robotic arm 7. The three-dimensional scanning terminal 8 can be a three-dimensional scanning device using the structured light principle or a three-dimensional scanning device implemented by a three-dimensional lidar. The second robotic arm 7 can control the movement of the three-dimensional scanning terminal 8 in space to obtain the three-dimensional information of the insulator under test 10. The second robotic arm 7 can also identify the insulators in the sample area 4. For example, a marking part can be set on the insulator. The marking part can be a two-dimensional code or a customized serial code. After the identification is completed, first adjust the position of the movable loading stage 9-2, and then place the insulator. The second robotic arm 7 has a replaceable front end actuator to adapt to the clamping and transfer operations of different types of insulators.

[0041] An embodiment of the present invention further provides an automated method for measuring the creepage distance of an insulator, including the following steps:

[0042] S100: Identify the characteristic information of the insulator 10 to be measured. Specifically, the first robotic arm 5 can drive the positioning and identification camera 6 to scan the code of the insulator 10 to be measured from the sample area 4, so as to automatically identify the characteristic information of the insulator 10 to be measured. Before the test, the system control server 3 verifies the identity of the experimenter, and then the characteristic information of the insulator 10 to be measured can be manually input or automatically identified by the positioning and identification camera 6.

[0043] S200: Adjust the sample stage 9 according to the characteristic information to adapt to carrying the insulator 10 to be measured. The sample stage 9 can adjust the distance between the movable loading stage 9-2 and the fixed loading stage 9-1. The two ends of the insulator 10 to be measured are respectively placed on the movable stage and the fixed loading stage 9-1, which can adapt to insulators 10 to be measured with different lengths.

[0044] S300: Place the insulator 10 to be measured on the sample stage 9 through the transfer device. The transfer device includes a second robotic arm 7. The system control server 3 can drive the second robotic arm 7 to move the insulator 10 to be measured from the sample area 4 to the sample stage 9.

[0045] S400: Obtain the three-dimensional information of the insulator 10 to be measured. The three-dimensional scanning terminal 8 provided on the second robotic arm 7 can be used to scan the insulator 10 to be measured to obtain the three-dimensional information. The system control server 3 can obtain the creepage distance of the insulator 10 to be measured according to the three-dimensional information, specifically including the following steps:

[0046] S500: Perform three-dimensional modeling on the insulator 10 to be measured according to the three-dimensional information to obtain three-dimensional model information.

[0047] S600: Obtain the axial section information according to the three-dimensional model information.

[0048] S700: Identify the connection points between the insulating material and the connecting material of the insulator 10 to be measured according to the axial section information and the curve characteristics of the insulator 10 to be measured, and obtain the curve part where the creepage distance needs to be measured.

[0049] S800: Calculate the creepage distance according to the curve integral algorithm.

[0050] After calculating the creepage distance, the system control server 3 controls the second robotic arm 7 to remove the insulator 10 that has completed the measurement test from the sample stage 9 and transfer it to the test-completed sample placement area. Subsequently, the system can output a test report according to the measured data, and the test process ends here.

[0051] An automatic method for measuring the creepage distance of insulators provided by the present invention can achieve automatic identification of the insulator to be measured 10, automatic adjustment of the sample stage 9, automatically transporting the insulator to be measured 10 to the sample stage 9, automatically scanning and calculating the creepage distance, reducing the participation of personnel and the subjective factors of personnel during the test, making the data more objective while reducing the labor intensity. In addition, compared with the manual measurement method, the creepage distance measurement based on a high-precision three-dimensional model has the characteristics of automation, high efficiency, and high precision.

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated insulator creepage distance measurement system, characterized in that, Including: A transfer device, an identification device, a sample stage, a three-dimensional scanning terminal, and a system control server. The transfer device, the identification device, the sample stage, and the three-dimensional scanning terminal are respectively connected to the system control server. The identification device is used to identify the characteristic information of the insulator under test. The system control server is used to control the sample stage to adjust its carrying position according to the characteristic information, and control the transfer device to place the insulator under test on the carrying position of the sample stage. The three-dimensional scanning terminal is used to obtain the three-dimensional information of the insulator under test. The system control server is used to obtain the creepage distance of the insulator under test according to the three-dimensional information. The sample stage includes a fixed loading stage, a movable loading stage, and a driving device. The driving device is used to control the movement of the movable loading stage to adjust the distance between the movable loading stage and the fixed loading stage, so as to adapt to insulators under test of different lengths. The identification device includes a positioning and identification camera and a first robotic arm. The positioning and identification camera is arranged on the first robotic arm. The first robotic arm is used to adjust the position of the positioning and identification camera. The positioning and identification camera is used to identify the characteristic information of the insulator under test. The transfer device includes a second robotic arm. The second robotic arm is used to pick up and place the insulator under test. The three-dimensional scanning terminal is arranged on the second robotic arm. There is also a sample area for placing several insulating terminals to be tested. The second robotic arm is used to identify the insulating terminals to be tested in the sample area and transfer them to the sample stage.

2. The automated insulator creepage distance measurement system according to claim 1, wherein The sample stage further includes a guide rail. The movable loading stage is slidably connected to the guide rail. The driving device includes a stepper motor and a lead screw. The lead screw is threadedly connected to the movable loading stage. The stepper motor is used to drive the lead screw to rotate to drive the movable loading stage to move on the guide rail.

3. An automated method for measuring the creepage distance of an insulator, which is applied to the automated insulator creepage distance measurement system described in claim 1 or 2, and is characterized in that, Including the following steps: Identifying the characteristic information of the insulator under test; Adjusting the sample stage according to the characteristic information to adapt to carrying the insulator under test; Placing the insulator under test on the sample stage through the transfer device; Obtaining the three-dimensional information of the insulator under test; Obtaining the creepage distance of the insulator under test according to the three-dimensional information.

4. The automated insulator creepage distance measurement method according to claim 3, characterized in that, The obtaining the creepage distance of the insulator under test according to the three-dimensional information includes: Performing three-dimensional modeling on the insulator under test according to the three-dimensional information to obtain three-dimensional model information; Obtaining axial section information according to the three-dimensional model information; Identifying the connection points between the insulating material and the connecting material of the insulator under test according to the axial section information and the curve characteristics of the insulator under test, and obtaining the curve part where the creepage distance needs to be measured; Calculating the creepage distance according to the curve integral algorithm.

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