Automatic detection control method for wireless charging device safety test

Abstract

The application discloses an automatic detection control method for wireless charging equipment safety test, which comprises a foreign matter detection step, and the foreign matter detection step comprises the following steps: connecting an upper computer with a virtual controller / robot controller by using a connection controller; setting the total length, total width and area row-column segmentation mode of a detection area; calculating the space coordinate data of the target position of a test point in a unit cell formed after area segmentation, and writing the space coordinate data into the robot controller; starting a protection signal under the premise that the detection equipment reaches a preparation position; starting and pausing a path program of the detection equipment by test control operation; and completing the test of all test points, so that the foreign matter detection test is passed. The application greatly improves the efficiency of the wireless charging detection process, and enables the detection project to be automatically processed.

Description

Technical Field

[0001] This invention relates to the field of wireless charging testing technology, and in particular to an automated testing and control method for safety testing of wireless charging devices. Background Technology

[0002] In the programming and control technology of industrial robots, the teach pendant is a crucial component. As a portable handheld operating device, the teach pendant can perform multiple tasks during the operation of an industrial robot, including running programs, micro-controlling the manipulator, and modifying programs and data. The teach pendant consists of software and hardware, and is itself a complete computer, connected to the controller via integrated cables and connectors. Traditional teach pendants are multifunctional and often require experienced operators to operate. To meet specific needs, some robot manufacturers provide SDK development kits for secondary development. Using these kits, users can customize the operating interface, create custom applications for specific scenarios, establish a user control platform, and communicate with the robot controller via network or communication cables, or directly with a virtual controller in simulation software.

[0003] Currently, a dedicated user interface for testing equipment used in the safety testing of wireless charging devices is yet to be developed. Compared to traditional teach pendant operation, a user control platform designed and built for specific scenarios can make the testing process easier to use and lower the operational threshold. Summary of the Invention

[0004] The purpose of this invention is to provide the necessary data for sodium-ion battery modeling and simulation, and to provide an automated detection and control method for safety testing of wireless charging devices. This method aims to solve the problem of complex and inefficient testing processes caused by the lack of a dedicated user interface for the safety testing process of wireless charging for electric vehicles.

[0005] The technical solution adopted to achieve the purpose of this invention is:

[0006] An automated detection and control method for safety testing of wireless charging devices includes a foreign object detection step, wherein the foreign object detection step includes:

[0007] Use the connection controller to connect the host computer to the virtual controller / robot controller;

[0008] Set the total length and width of the detection area, as well as the method for dividing the area into rows and columns;

[0009] Calculate the spatial coordinates of the target positions of the test points in the cells formed after the region segmentation, and write them into the robot controller;

[0010] Once the detection equipment has been confirmed to be in the ready position, activate the protection signal.

[0011] The foreign object detection test is passed once the test control operation of the detection equipment starts and pauses the path program; after all test points are completed, the foreign object detection test is passed.

[0012] The detection area is a selected area on the upper surface of the charging coil near the ground end where the test piece is held by the testing device for testing.

[0013] In the foreign object detection step, if no power outage occurs at a predicted pilot point, a continuous temperature measurement step is also included. The temperature data obtained from the continuous temperature measurement step is used to determine whether the test requirements are met. That is, when the temperature of the detection area and the surface of the foreign object reaches a thermal equilibrium state, if the temperature value meets the preset standard, the test at the subsequent test points will continue. Otherwise, it means that the power outage cannot be performed normally at the test point, the foreign object detection fails, the test is terminated, and debugging is carried out.

[0014] During continuous temperature measurement, the temperature value returned by the temperature measurement unit will be displayed in real time.

[0015] The protection signal is a safety signal preset in all path programs. If this safety signal is not activated, the device will be in a waiting state when executing the path program until the protection signal is activated before continuing to execute subsequent programs.

[0016] In the foreign object detection process, each test piece is tested sequentially according to its number. Each test piece moves completely to each test point. Upon entering a cell, starting from the first test point, it is determined whether the wireless charging device has lost power. If power is lost, it indicates that the presence of a foreign object can be detected normally, and the test of that unit test piece at that test point is completed. The process then continues to the next test point until all test points in that cell have been tested. After each cell test is completed, the process continues to the next cell test. When all numbered test pieces have completed all test points, the foreign object detection safety test is passed.

[0017] The automated detection and control method for safety testing of wireless charging devices includes a liveness detection step, which comprises:

[0018] Use the connection controller to connect the host computer to the virtual controller / actual robot controller.

[0019] Set the sample size and initial position, and input the EMF sampling settings parameters; the spatial coordinates of the sampling position required for magnetic field strength measurement will be written into the robot controller;

[0020] Once the device to be tested reaches the sampling process preparation position, the magnetic field strength measurement program is run, and the EMF sampling program is run simultaneously. The field strength value returned by the magnetic field strength measurement program is recorded and output through the sampling point data column.

[0021] Run the contour plotting program to draw a field strength map in the user interface view bar based on the sampling point data, and mark contour lines on the field strength map and output them through the contour line data bar;

[0022] Run the limit line drawing program, mark the limit lines in the view bar of the user interface based on the contour line data, and output them through the limit line data bar;

[0023] Run the protection line drawing program, based on the limit line data, expand the limit line by a specified distance and display the protection line in the user interface view bar, and output it through the protection line data bar;

[0024] Run the intersection calculation program, and based on the protection line data, output the coordinates of the intersection point between the path of the live protection simulation specimen and the protection line in the intersection data column;

[0025] The path calculation program calculates the start and end coordinates of each path, and all coordinate data is exported to a text document. The start and end coordinates can be written to the robot controller in order by calling the text document.

[0026] Once the detection equipment has been confirmed to be in the ready position for the live animal protection process, activate the protection signal.

[0027] The test control operation starts and pauses the path procedure of the detection equipment;

[0028] The liveness protection test is passed when all test conditions in the test path are met.

[0029] The EMF sampling parameters are magnetic field strength sampling test parameters that are set automatically according to the test conditions, including the range of the sampling space and the number of sampling points set in the longitudinal and transverse directions.

[0030] The sample refers to the electromagnetic coil used to simulate ground-based charging equipment, and the initial position refers to the placement of the electromagnetic coil in space relative to the testing equipment.

[0031] Wherein, the intersection coordinates are the spatial coordinates of the intersection point with the protection line when the equipment clamps and simulates the movement of a living body during the live body protection process, which are the test point coordinates in the live body protection test; first calculate the intersection coordinates, and then calculate the starting coordinates and ending coordinates of the corresponding path for each intersection point according to the number and position of the intersection points, and the resulting paths are the paths of the equipment clamping and simulating the movement of a living body during the live body protection process;

[0032] In the live protection test, each test point is associated with three parameters: θ, α, and h. θ represents the direction of invasion, and is defined as a circle with the sample center point as the center, within a range of 0° to 360°, with each increment θ representing a different direction. T This corresponds to one test point; α represents the intrusion attitude angle, with the horizontal line as 0°, within the range of -90° to +90°, every increment α T The angle of an intrusion posture at the test point is defined as h. Several intrusion posture tests need to be completed at each test point. The liveness protection test is a height-based test. After each change to a new height, the magnetic field strength information at the new height is remeasured, the field strength map is drawn, the protected area and the coordinates of the test point are determined, and each height corresponds to one layer of test point coordinates. If the simulated movement of a live body in an intrusion posture at a test point at a predetermined height cannot cause the system to shut down, the liveness protection test fails and needs to be stopped and debugged. When each intrusion posture at each test point in each layer of height can cause a power outage, the liveness protection test is successful.

[0033] This invention addresses the control requirements of robots and sensor devices in the wireless charging safety testing process by independently customizing a control module. Compared to traditional teach pendant control, this application achieves integrated control through a secondary development platform, enabling simultaneous communication and command transmission with both robots and sensor devices.

[0034] This application presents a customized functional integration module specifically designed for foreign object detection and liveness protection processes to meet the needs of wireless charging testing projects. Traditional teach pendant control cannot perform batch processing of robot target position data, making data rewriting extremely cumbersome. In contrast, the functional integration module in this application enables batch rewriting of robot target position data, significantly improving the efficiency of the wireless charging testing process and allowing for automated processing of the testing project.

[0035] The user control platform provided in this application is easy to operate, which helps reduce manual intervention in the safety testing of wireless charging devices, avoids tedious data processing, and simplifies the operation process by using an integrated user interface, thereby reducing the error rate during operation. Ultimately, it can help technicians improve work efficiency, reduce the time cost of the safety testing process of charging devices, and shorten the testing cycle. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of an automated detection and control method for safety testing of wireless charging devices according to an embodiment of the present invention.

[0037] Figure 2 This is a functional logic diagram of foreign object detection in an embodiment of the present invention.

[0038] Figure 3This is a logic diagram of the living body protection function in an embodiment of the present invention.

[0039] Figure 4 This is a screenshot of the user interface of the software program according to an embodiment of the present invention. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] Example 1:

[0042] like Figure 1 As shown in the figure, the automated detection and control method for safety testing of wireless charging devices in this embodiment of the invention provides a convenient device control technology for the automated testing process of wireless charging. It is implemented by deploying a written software program in the device.

[0043] The software program involved in this application forms a user control platform installed on a host industrial computer. This host industrial computer can connect to the robot's WAN port of the testing equipment via a communication cable and communicate with it. It can also connect to the sensor devices of the testing equipment via a data connection cable, thereby enabling the sending and receiving of data and controlling the actions of the testing equipment to execute corresponding testing steps, thus achieving automated testing control. See also... Figure 1 As shown, the automated testing equipment dedicated user control platform for safety testing of wireless charging devices of the present invention is built through the following steps:

[0044] S1: In Visual Studio, use the VB.NET language and the dynamic link libraries in the SDK secondary development package to build the required user interface.

[0045] S2: Obtain namespace reference permissions by adding references to DLL files in the dynamic link library, then use VB.NET language to integrate and debug operation instructions by referencing relevant instructions and conditional statements, and finally associate them with function buttons in the user interface.

[0046] S3: Based on the operational requirements of the automated testing equipment, first expand the main robot and sensor control modules. The program in the control module includes:

[0047] S31: Connect to the controller and set the program pointer and execution path program.

[0048] S32: Read and write data to obtain the value of the specified variable and the current robot end-effector pose information.

[0049] S33: Input and output, read and input signals.

[0050] S34: Speed ​​control, obtains the current movement speed value and adjusts the speed percentage.

[0051] S35: Read magnetic field strength data, send commands to the magnetic field strength sensor and read the returned data.

[0052] S36: Read temperature values ​​and continuously record real-time readings from the temperature sensor.

[0053] S4: Based on the requirements of the wireless charging safety testing project, expand the foreign object detection function module. The program in the function module includes:

[0054] S41: Detection area setting, the total length and total width can be customized.

[0055] S42: Test region segmentation, with customizable segmentation methods.

[0056] S43: Test point calculation, calculates the location of test points based on the custom area and segmentation method.

[0057] S44: Coordinate initialization, reset test point position information.

[0058] S45: Test control.

[0059] S46: Protection signal control.

[0060] S47: Temperature measurement, continuous temperature measurement and determination of whether the stable temperature value meets the standard.

[0061] S5: Based on the requirements of the wireless charging safety testing project, expand the liveness protection function module. The program in the function module includes:

[0062] S51: Sample size setting, allowing you to customize the total length and width of the test sample.

[0063] S52: Test setup, including setting the initial sample position, EMF sampling settings, and magnetic field strength measurement procedure.

[0064] S53: Protection area calculation, including EMF sampling, contour line drawing program, limit line drawing program, protection line drawing program, and intersection point calculation program.

[0065] S54: Test control.

[0066] S55: Protection signal control.

[0067] S56: Path calculation, which can calculate the start and end coordinates of the specimen's movement path in the live protection process, write the coordinates into the controller, and reset the coordinate values.

[0068] S6: Auxiliary function program, including video recording and workpiece position adjustment. Recorded video files are automatically saved in a specified folder on the host computer.

[0069] In step S31, a virtual controller connected to RobotStudio simulation software can be used for simulation.

[0070] In step S42, the test area should not be divided into more than 100 parts.

[0071] Example 2:

[0072] Based on the user control platform established in Embodiment 1 of the present invention, the operation method of the foreign object detection procedure therein is described. This foreign object detection procedure operation method includes the following steps:

[0073] S21. Use a connection controller to connect the host computer to the virtual controller or the actual robot controller.

[0074] S22. The user sets the total length, total width, and segmentation method of the detection area. For foreign object detection, the detection device needs to hold the test piece within a selected area on the upper surface of the charging coil near the ground. This selected area is the detection area. The segmentation method is typically 8×8 or 10×10, but can be customized. Depending on the number of rows and columns, each segmented area can be represented by the row number i and column number j.

[0075] S231. Calculate the target position data at the test point: Calculate the spatial coordinates of the target position according to the requirements for setting up the foreign object detection test point, and write this data into the robot controller in batches.

[0076] In foreign object detection, test points are set in equal divisions within each segmented grid. The specific setting standards refer to Part 6 of the National Standard for Wireless Charging Systems for Electric Vehicles, and are related to the size of each segmented grid. The foreign object detection section of the user control platform includes a pre-defined control for calculating the coordinates of the test points. This control is linked to a calculation program that divides the test points according to the national standard and can write the calculated values ​​to the controller.

[0077] S24. After confirming that the detection equipment has reached the ready position, activate the protection signal:

[0078] The protection signal is a safety signal that is preset in all path programs. If the signal is not turned on, the device will be in a waiting state when executing the path program until the protection signal is turned on before continuing to execute the subsequent program.

[0079] S25. Start and stop the path procedure of the test control operation detection equipment.

[0080] like Figure 2 As shown, the foreign object detection process involves testing several test pieces sequentially according to their numbers. Each test piece must move completely to every test point. Upon reaching each small square, starting from the first test point, the system will determine if the wireless charging device has lost power. If power is lost, it indicates that the presence of a foreign object can be detected normally, and the test for that test piece at that point is complete. The process then continues to the next test point until all test points within that small square have been tested. The process continues until all numbered test pieces have completed all test points, at which point the foreign object detection safety test is passed.

[0081] S26. If no power outage occurs at a certain test point, the test requirements are determined by continuous temperature measurement: when the temperature of the tested area and the surface of the foreign object reaches thermal equilibrium, if the temperature value meets the requirements of the national standard GB / T38775.1-2020, the test at subsequent test points continues; otherwise, it indicates that the power outage cannot be performed normally at that test point, the foreign object detection fails, the test needs to be terminated and debugging is required; during temperature measurement, the value returned by the temperature measurement unit will be displayed in real time.

[0082] The program operation method provided in this embodiment can be used in the foreign object detection process to achieve batch processing of test point target location data, thereby improving the working efficiency of the foreign object detection process.

[0083] Example 3:

[0084] This embodiment describes the operation method of the liveness protection procedure in a user control platform. The operation method includes the following steps:

[0085] S31. Use a connection controller to connect the host computer to the virtual controller or the actual robot controller.

[0086] S32. The user sets the sample size and initial position, EMF sampling parameters, and writes the spatial coordinates of the sampling position required for magnetic field strength measurement into the robot controller;

[0087] The sample refers to the electromagnetic coil used to simulate the ground-based charging equipment. The initial position refers to the placement of the electromagnetic coil in space relative to the detection equipment. The EMF sampling parameters are magnetic field strength sampling test parameters that are set according to the specific conditions during the test, including parameters such as the range of the sampling space and the number of sampling points in the longitudinal and transverse directions.

[0088] S33. When the device to be tested arrives at the sampling process preparation position, the magnetic field strength measurement program is run, and the EMF sampling program is run at the same time to record the field strength value returned by the magnetic field strength measurement unit and output it through the sampling point data column.

[0089] S34. Run the contour plotting program, draw the field strength map in the user interface view bar based on the sampling point data, and mark the contour lines in it, and output it through the contour line data bar.

[0090] S35. Run the limit line drawing program, mark the limit lines in the user interface view bar based on the contour line data, and output them through the limit line data bar.

[0091] S36. Run the protection line drawing program, based on the limit line data, expand the limit line by a specified distance and display the protection line in the user interface view bar, and output it through the protection line data bar.

[0092] S37. Run the intersection calculation program and output the coordinates of the intersection point between the path of the live protection simulation specimen and the protection line in the intersection data column based on the protection line data.

[0093] S38. The path calculation program calculates the coordinates of the start and end points of each path. All coordinate data will be exported to a text document. Calling this document will write the start and end point coordinates into the robot controller in order.

[0094] The intersection coordinates are the spatial coordinates of the points where the equipment clamps and simulates the movement of a living body during the live body protection process, and the points where the equipment clamps and simulates the movement of a living body. First, the intersection coordinates are calculated, and then the starting coordinates and ending coordinates of the corresponding path are calculated for each intersection based on the number and position of the intersections. These several paths are the paths through which the equipment clamps and simulates the movement of a living body during the live body protection process.

[0095] S39. After confirming that the detection equipment has reached the ready position for the live body protection process, activate the protection signal (same as in Example 2).

[0096] S40. Start and pause the path procedure of the test control operation detection equipment.

[0097] The coordinates of the intersection point mentioned above are the coordinates of the test point in the live animal protection test. For example... Figure 3 As shown, each test point is associated with three parameters: θ, α, and h. θ represents the direction of invasion, centered on the sample center point, within a range of 0° to 360°, with each increment θ representing a different direction. T This corresponds to one test point; α represents the intrusion attitude angle, with the horizontal line as 0°, within the range of -90° to +90°, every increment α TThe angle of an intrusion posture at a test point is defined as h. Several intrusion posture tests need to be performed at each test point. The liveness protection test is a height-based test. After each change to a new height, the magnetic field strength at that height needs to be remeasured, a field strength map drawn, and the protected area and test point coordinates determined. Therefore, each height corresponds to one layer of test point coordinates, and a new layer is typically taken every 5cm. There is no temperature condition consideration in the liveness protection test. If the simulated movement of a live body at a certain test point at a certain height fails to cause a system power outage, the liveness protection test fails and needs to be stopped and debugged. The liveness protection test is successful when all intrusion postures at each test point within each layer of height can cause a power outage.

[0098] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0099] Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the invention.

[0100] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated detection and control method for safety testing of wireless charging devices, characterized in that, The foreign object detection step includes: Use the connection controller to connect the host computer to the virtual controller / robot controller; Set the total length and width of the detection area, as well as the method for dividing the area into rows and columns; Calculate the spatial coordinates of the target positions of the test points in the cells formed after the region segmentation, and write them into the robot controller; Once the detection equipment has been confirmed to be in the ready position, activate the protection signal. The foreign object detection test is passed once the test control operation of the detection equipment starts and pauses the path program; after all test points are completed, the foreign object detection test is passed. In the foreign object detection process, if no power outage occurs at a predicted pilot point, a continuous temperature measurement step is also included. The temperature data obtained from the continuous temperature measurement step is used to determine whether the test requirements are met. That is, when the temperature of the detection area and the surface of the foreign object reaches a thermal equilibrium state, if the temperature value meets the preset standard, the test at the subsequent test points will continue. Otherwise, it means that the power outage cannot be performed normally at the test point, the foreign object detection fails, the test is terminated, and debugging is performed.

2. The automated detection and control method for safety testing of wireless charging devices according to claim 1, characterized in that, The detection area is the selected area on the upper surface of the charging coil near the ground end where the test piece is held by the testing equipment for testing.

3. The automated detection and control method for safety testing of wireless charging devices according to claim 1, characterized in that, During continuous temperature measurement, the temperature value returned by the temperature measurement unit will be displayed in real time.

4. The automated detection and control method for safety testing of wireless charging devices according to claim 1, characterized in that, The protection signal is a safety signal preset in all path programs. If the safety signal is not activated, the device will be in a waiting state when executing the path program until the protection signal is activated before continuing to execute the subsequent program.

5. The automated detection and control method for safety testing of wireless charging devices according to claim 1, characterized in that, In the foreign object detection process, each test piece is tested sequentially according to its number. Each test piece moves completely to each test point. Upon entering a cell, starting from the first test point, it is determined whether the wireless charging device has lost power. If power is lost, it indicates that the presence of a foreign object can be detected normally, and the test for that test piece at that test point is complete. The process then continues to the next test point until all test points in that cell have been tested. After each cell is completed, the process continues to the next cell. When all numbered test pieces have completed all test points, the foreign object detection safety test is passed.

6. The automated detection and control method for safety testing of wireless charging devices according to claim 1, characterized in that, The step includes a liveness detection step, which includes: Use the connection controller to connect the host computer to the virtual controller / actual robot controller; Set the sample size and initial position, and input the EMF sampling settings parameters; the spatial coordinates of the sampling position required for magnetic field strength measurement will be written into the robot controller; Once the device to be tested reaches the sampling process preparation position, the magnetic field strength measurement program is run, and the EMF sampling program is run simultaneously. The field strength value returned by the magnetic field strength measurement program is recorded and output through the sampling point data column. Run the contour plotting program to draw a field strength map in the user interface view bar based on the sampling point data, and mark contour lines on the field strength map and output them through the contour line data bar; Run the limit line drawing program, mark the limit lines in the view bar of the user interface based on the contour line data, and output them through the limit line data bar; Run the protection line drawing program, based on the limit line data, expand the limit line by a specified distance and display the protection line in the user interface view bar, and output it through the protection line data bar; Run the intersection calculation program, and based on the protection line data, output the coordinates of the intersection point between the path of the live protection simulation specimen and the protection line in the intersection data column; The path calculation program calculates the start and end coordinates of each path, and all coordinate data is exported to a text document. The start and end coordinates can be written to the robot controller in order by calling the text document. Once the detection equipment has been confirmed to be in the ready position for the live animal protection process, activate the protection signal. The test control operation starts and pauses the path procedure of the detection equipment; The liveness protection test is passed when all test conditions in the test path are met.

7. The automated detection and control method for safety testing of wireless charging devices according to claim 6, characterized in that, The EMF sampling parameters are magnetic field strength sampling test parameters that are set by the user according to the test conditions, including the range of the sampling space and the number of sampling points set in the longitudinal and transverse directions.

8. The automated detection and control method for safety testing of wireless charging devices according to claim 6, characterized in that, The sample refers to the electromagnetic coil used to simulate ground-based charging equipment, and the initial position refers to the placement of the electromagnetic coil in space relative to the testing equipment.

9. The automated detection and control method for safety testing of wireless charging devices according to claim 6, characterized in that, The intersection coordinates are the spatial coordinates of the intersection point with the protection line when the equipment clamps and simulates the movement of a living body during the live body protection process. They are the test point coordinates in the live body protection test. First, the intersection coordinates are calculated. Then, based on the number and position of the intersection points, the starting coordinates and ending coordinates of the corresponding path are calculated for each intersection point. The resulting paths are the paths of the equipment clamping and simulating the movement of a living body during the live body protection process. In the live protection test, each test point is associated with three parameters: θ, α, and h. θ represents the direction of invasion, and is defined as a circle with the sample center point as the center, within a range of 0° to 360°, with each increment θ representing a different direction. T This corresponds to one test point; α represents the intrusion attitude angle, with the horizontal line as 0°, within the range of -90° to +90°, every increment α T The angle of an intrusion posture at the test point is defined as h. Several intrusion posture tests need to be completed at each test point. The liveness protection test is a height-based test. After each change to a new height, the magnetic field strength information at the new height is remeasured, the field strength map is drawn, the protected area and the coordinates of the test point are determined, and each height corresponds to one layer of test point coordinates. If the simulated movement of a live body in an intrusion posture at a test point at a predetermined height cannot cause the system to shut down, the liveness protection test fails and needs to be stopped and debugged. When each intrusion posture at each test point in each layer of height can cause a power outage, the liveness protection test is successful.

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