Integrated vehicle lamp test and simulation system and test method

Abstract

The invention discloses an integrated vehicle lamp test and simulation system and a test method, and belongs to the field of vehicle lamp test. The system comprises a cabinet, an upper computer, a foresight camera camera obscura and a Labcar module. The upper computer is used for performing operation management on the whole test and simulation system, monitoring a test state, managing test parameters and test data, generating a test report, simulating a traffic scene, performing automobile dynamics configuration, editing and generating an automatic test script and a test sequence; the cabinet is used for performing power supply management on the test and simulation system, providing a power supply and a control signal for the Labcar module, and communicating with the upper computer and the Labcar module; the foresight camera camera obscura is used for capturing a virtual traffic scene. According to the integrated vehicle lamp test and simulation system and the test method, the systematic test capability is enhanced, the scene interaction verification capability is improved, the detection precision and objectivity are improved, the small defect detection capability is enhanced, and test data quantification and traceability are realized.

Description

Technical Field

[0001] The invention relates to an integrated vehicle lamp test and simulation system and a test method, belonging to the field of vehicle lamp test. Background Art

[0002] At present, car lighting technology is undergoing a revolutionary change. Consumers' demand for car lights is no longer limited to excellent lighting performance. They also expect car lights to play an important role in safety assistance, intelligent interaction and personalized display. Car lights should be able to adjust the lighting mode in real time according to road conditions, weather and driving status, so as to improve driving safety at night and in complex environments; at the same time, they can also interact with the surrounding environment and pedestrians through projection, animation and other means to convey information such as vehicle status and driving intentions. In addition, this improvement in interactivity and personalization has continuously expanded the application scope of display technology. From daytime running lights to grille lights, and then to rear combination lights, the functional combination of car lights has become more diverse.

[0003] In the existing technology, vehicle lighting tests generally use single lamps as units for testing, lacking effective integration and communication testing. During the test, testers usually manually trigger the lamp function and rely on the human eye to intuitively evaluate the lamp response, brightness and dynamic effects, resulting in low test efficiency and poor accuracy. In addition, the existing test system has deficiencies in simulating vehicle simulation tests under actual driving conditions, and cannot fully simulate actual working conditions, limiting the comprehensiveness of the test. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an integrated vehicle lamp testing and simulation system and testing method, so as to enhance the systematic testing capability, improve the scene interaction verification capability, improve the detection accuracy and objectivity, enhance the ability to detect minor defects, and realize the quantification and traceability of test data.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: On one hand, the present invention provides an integrated vehicle lamp test and simulation system, which includes a cabinet, a host computer, a front-view camera dark box and a Labcar module; The host computer is used to manage the operation of the entire test and simulation system, monitor the test status, manage test parameters and test data, generate test reports, simulate traffic scenarios and perform vehicle dynamics configuration, and edit and generate automated test scripts and test sequences; The cabinet is used to perform power management on the test and simulation system, provide power and control signals for the Labcar module, and communicate with the host computer and the Labcar module; The front-view camera dark box is used to capture virtual traffic scenes; The Labcar module is used to simulate the behavior characteristics of a real vehicle and establish an experimental environment for testing the effects of headlights.

[0006] Further, the cabinet includes an electric control module, a real-time machine, a programmable power supply, a VT board and a fault injection module; The electric control module is used to control, distribute and protect the external AC power supply; The real-time machine is used to communicate with the host computer and the Labcar module; The program-controlled power supply is used to supply power to the VT board; The VT board is used to simulate the conventional power supply on the real vehicle and provide power and control signals for the Labcar module; The fault injection module is used to provide various modes of fault injection for the host computer.

[0007] Furthermore, the fault types injected by the fault injection module include a short circuit fault to power supply, a short circuit fault to ground, a short circuit fault between pins and an open circuit fault.

[0008] Further, the host computer includes scene and dynamics simulation software, host computer test management software and host computer automation editing software; The scenario and dynamics simulation software is used to simulate the traffic environment and perform vehicle dynamics settings; The host computer test management software is used to manage the operation of the entire test and simulation system, monitor the test status, adjust the test parameters, manage the test data, and automatically generate a test report; The host computer automatic editing software is used for automatic editing and generating automatic test scripts and test sequences.

[0009] Further, the front-view camera dark box includes a camera, a lens and a display; The display is used to display virtual scene images and videos; The camera captures the virtual scene image and video data on the display through a lens, and outputs them to the Labcar module in real time.

[0010] Furthermore, the Labcar module includes a domain controller, a display screen, a vehicle driving operation module, a headlight module, a high-speed camera and an image acquisition board; The vehicle light module is used to simulate the vehicle lighting system; The domain controller is used to receive and analyze virtual road information and obstacles, as well as receive signals from the host computer test management software and control the lighting module to display accordingly; The display screen is used to display a virtual traffic scene; The high-speed camera is used to collect images of the vehicle light module; The image acquisition board is used to convert the image data collected by the high-speed camera into bus signals and system variables; The vehicle driving operation module is used for the driver to perform vehicle driving operations in a virtual scene.

[0011] Furthermore, the vehicle driving operation module includes an accelerator, a brake, a gear, a steering wheel and function buttons, and the function buttons are arranged on the steering wheel.

[0012] Furthermore, the vehicle light module includes a combination headlight, a combination taillight, a daytime running light and a grille light.

[0013] Another aspect of the present invention provides a testing method of an integrated vehicle lamp testing and simulation system, which comprises the following steps: Step S1, use the host computer test management software to perform system configuration management, set hardware system parameters, and control the VT board through the experiment management platform in the host computer test management software; Step S2: Build the required dynamic traffic scene through scene and dynamics simulation software to simulate the actual road environment; Step S3, capturing road images and video data through the camera in the dark box of the front camera, and outputting them to the domain controller in real time, and the domain controller receives and analyzes the road information and obstacles; Step S4: The driver performs driving function operations according to the virtual traffic scene, transmits the expected value, and outputs the expected value signal to the host computer test management software; Step S5, the domain controller receives the expected value signal transmitted by the host computer test management software, simulates the image type to be projected by the real vehicle combination headlight, combination taillight, daytime running light and grille light according to the signal content, and controls the vehicle light module to display accordingly; Step S6: Use a high-speed camera to collect images of the combined headlight, combined taillight, daytime running light and grille light of the vehicle light module; the image acquisition card processes the images collected by the high-speed camera, converts them into bus signals and system variables, and transmits the processed data back to the host computer test management software; Step S7: Use the host computer test management software to determine whether the dynamic traffic scene type and the projection pattern signal, brightness, color, and dynamic effect obtained by the image processing module meet the software requirements, output the test results based on the judgment results, and use the host computer automation editing software to automatically generate a test report to complete the system closed-loop test.

[0014] By adopting the above technical scheme, the present invention integrates the test of combined headlights, combined taillights, daytime running lights and grille lights into the whole vehicle environment, configures them according to the connection logic and data link of the real vehicle, highly restores the current status of the real vehicle, realizes systematic testing with the whole vehicle working condition as the background, overcomes the limitation of only testing a single lamp in the past, and can comprehensively evaluate the performance of the headlights in a complex whole vehicle environment. The introduction of complex traffic scene simulation technology can simulate scenes such as meeting, braking, and turning, and verify whether the behavior of the headlights in these scenes meets the design requirements, which helps to improve the interactive performance and safety of the headlights. Combining the scene and dynamics simulation software with Labcar, it can simulate a variety of actual driving scenes, realize real-time interactive verification of the headlights and other vehicle systems, significantly improve the comprehensiveness and authenticity of the test, and ensure that the headlight function is still reliable in a complex and changeable road environment. The use of high-speed cameras and high-precision image acquisition boards, combined with automated image processing technology, realizes the accurate measurement of parameters such as headlight brightness, color, and dynamic effects, effectively avoiding the subjectivity and false detection and missed detection problems caused by human eye detection, and significantly improving the detection accuracy and objectivity. Through high-precision image analysis technology, it is possible to capture tiny defects at the pixel level of headlights, providing more stringent standards and basis for headlight quality control. The system can also provide detailed test data and reports, including various performance indicators of headlights, test environment parameters, etc., to achieve quantification and traceability of test results, and provide strong data support for headlight design optimization, quality control and troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a principle block diagram of the integrated vehicle lamp testing and simulation system of the present invention; Figure 2 The schematic diagram of the integrated vehicle lamp testing and simulation system of the present invention; Figure 3 The flowchart is a test method of the integrated vehicle lamp test and simulation system of the present invention. DETAILED DESCRIPTION

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0017] Embodiment 1 like Figure 1 As shown, this embodiment provides an integrated vehicle lamp testing and simulation system, which includes a cabinet, a host computer, a front-view camera dark box and a Labcar module.

[0018] The host computer is used to manage the operation of the entire test and simulation system, monitor the test status, manage test parameters and test data, generate test reports, simulate traffic scenarios and perform vehicle dynamics configuration, and edit and generate automated test scripts and test sequences.

[0019] The cabinet is used to manage the power supply of the test and simulation system, provide power and control signals for the Labcar module, communicate with the host computer and the Labcar module, and provide space for installation and protection of various devices.

[0020] The forward-looking camera dark box is used to capture virtual traffic scenes and simulate the environment in front of the vehicle.

[0021] The Labcar module is used to simulate the behavior characteristics of a real vehicle, from simple operations to complex road conditions, to establish an immersive experimental environment for testing the effects of headlights.

[0022] like Figure 2 As shown, the cabinet of this embodiment includes an electric control module, a real-time machine, a programmable power supply, a VT board and a fault injection module.

[0023] The electric control module is used to control, distribute and protect the external AC power supply, thereby providing power for the entire test and simulation system.

[0024] The real-time machine interacts with the host computer and the Labcar module in real time through Ethernet.

[0025] The programmable power supply is used to power the VT board.

[0026] The VT board is used to simulate the conventional power supply on the actual vehicle and provide power and control signals for the Labcar module.

[0027] The fault injection module is used to provide various modes of fault injection for the host computer and can be controlled by the host computer. The host computer can conveniently call the program control function of the fault injection unit to perform various modes of fault injection and test the diagnostic function of the Labcar module.

[0028] The fault types injected by the fault injection module include short circuit fault to power supply, short circuit fault to ground, short circuit fault between pins and open circuit fault, etc. Other fault forms can be selectively connected to the load.

[0029] like Figure 2 As shown, the host computer of this embodiment includes scene and dynamics simulation software, host computer test management software and host computer automatic editing software.

[0030] The scene and dynamics simulation software is used to simulate the traffic environment and perform vehicle dynamics settings. The scene and dynamics simulation software in this embodiment uses carmaker software.

[0031] The host computer test management software is used to manage the operation of the entire test and simulation system, monitor the test status, adjust the test parameters, manage the test data, and automatically generate a test report. The host computer test management software in this embodiment uses canoe software.

[0032] The host computer automation editing software is used to automatically edit and generate automated test scripts and test sequences.

[0033] like Figure 2 As shown, the front-view camera dark box of this embodiment includes a camera, a lens and a display.

[0034] The display is used to display virtual scene images and videos.

[0035] The camera captures the virtual scene image and video data on the display through the lens and outputs them to the Labcar module in real time. The Labcar module receives and analyzes the results of the front camera dark box.

[0036] like Figure 2 As shown, the Labcar module of this embodiment includes a domain controller, a display screen, a vehicle driving operation module, a light module, a high-speed camera and an image acquisition board.

[0037] The headlight module is used to simulate the vehicle lighting system. The headlight module includes combination headlights, combination taillights, daytime running lights and grille lights.

[0038] The vehicle driving operation module is used for the driver to perform vehicle driving operations in a virtual scene. The vehicle driving operation module includes an accelerator, brake, gear, steering wheel and function buttons. The function buttons are set on the steering wheel.

[0039] The display screen is used to display virtual traffic scenes, as well as the accelerator, brake, gear, steering wheel and function buttons, so that the driver can operate in the virtual scene.

[0040] The domain controller is used to receive and analyze virtual road information and obstacles, as well as receive signals from the host computer test management software and control the lighting module for corresponding display.

[0041] The driver transmits expected value signals on the Labcar module according to the virtual scene, including accelerator, brake, clutch, steering, etc. The expected value signals are output to the canoe software. The expected value signals received by the domain controller are used to simulate the image types to be projected by the real vehicle's combination headlights, combination taillights, daytime running lights and grille lights.

[0042] High-speed cameras are used to capture images of the headlight module. The Labcar module consists of multiple high-speed cameras. Since the headlights are relatively bright and the low beam and high beam have different light types, the high-speed cameras are divided into the first high-speed camera and the second high-speed camera. The first high-speed camera is facing the luminous area of ​​the combined headlights, combined taillights, daytime running lights and grille lights. The second high-speed camera is installed on the roof of the car to detect the brightness and beam pattern of the headlights to ensure their normal operation.

[0043] The image acquisition board is used to convert the image data collected by the high-speed camera into bus signals and system variables.

[0044] The canoe software receives the image data processed by the image acquisition board, determines whether the dynamic scene type and the projection pattern signal, brightness, color, and dynamic effect obtained by the image processing module meet the software requirements, and outputs the test results.

[0045] Embodiment 2 like Figure 3 As shown, this embodiment provides a testing method for an integrated vehicle lamp testing and simulation system, which comprises the following steps: Step S1, use the host computer test management software to perform system configuration management, set the hardware system parameters, control the VT board through the experiment management platform in the host computer test management software, and ensure that the Labcar module obtains the required power supply and control signals.

[0046] Step S2: Build the required dynamic traffic scene through scene and dynamics simulation software to simulate the actual road environment, including road layout, traffic conditions, etc.

[0047] Step S3: The camera in the dark box of the front-view camera captures road images and video data, and outputs them to the domain controller in real time. The domain controller receives and analyzes the road information and obstacles.

[0048] Step S4: The driver performs driving function operations according to the virtual traffic scene, such as operating the steering wheel, accelerator, brake, clutch, steering, etc., transmits the expected value, and outputs the expected value signal to the host computer test management software.

[0049] Step S5, the domain controller receives the expected value signal transmitted by the host computer test management software, simulates the image type to be projected by the real vehicle combination headlights, combination taillights, daytime running lights and grille lights according to the signal content, and controls the vehicle light module to display accordingly.

[0050] Step S6: Use a high-speed camera to capture images of the combined headlights, combined taillights, daytime running lights and grille lights of the vehicle lighting module to ensure that accurate light projection images are captured. The image acquisition card processes the images captured by the high-speed camera, converts them into bus signals and system variables, and transmits the processed data back to the host computer test management software.

[0051] Step S7: Use the host computer test management software to determine whether the dynamic traffic scene type and the projection pattern signal, brightness, color, and dynamic effect obtained by the image processing module meet the software requirements, output the test results based on the judgment results, and use the host computer automation editing software to automatically generate a test report to complete the system closed-loop test.

[0052] The working principle of the present invention is as follows: The required dynamic traffic scene is built using scene and dynamic simulation software. The camera in the dark box of the front-view camera captures road images and video data and outputs them to the domain controller in real time. The driver operates the driving function according to the virtual traffic scene displayed on the display screen, and transmits the expected value signal to the host computer test management software. The host computer test management software then outputs the expected value signal to the domain controller. The domain controller controls the combination headlights, combination taillights, daytime running lights and grille lights to display accordingly according to the signal content. A high-speed camera is used to capture images of the combination headlights, combination taillights, daytime running lights and grille lights. The image acquisition card processes the images captured by the high-speed camera and transmits the processed data back to the host computer test management software. The host computer test management software determines whether the software requirements are met and outputs the test results. Finally, the host computer automation editing software is used to automatically generate a test report.

[0053] By integrating the tests of combination headlamps, combination taillamps, daytime running lamps and grille lamps into the whole vehicle environment, a systematic test based on the whole vehicle working conditions is realized, which can comprehensively evaluate the performance of the headlights in a complex whole vehicle environment. By introducing complex traffic scene simulation technology, simulating scenes such as meeting, braking and turning, it is helpful to improve the interactive performance and safety of the headlights. Combining the scene and dynamics simulation software with Labcar, the real-time interactive verification of the headlights and other vehicle systems is realized, which significantly improves the comprehensiveness and authenticity of the test. The use of high-speed cameras and high-precision image acquisition boards realizes the accurate measurement of parameters such as the brightness, color and dynamic effects of the headlights, which significantly improves the detection accuracy and objectivity. Through high-precision image analysis technology, it is possible to capture tiny defects at the pixel level of the headlights, providing more stringent standards and basis for the quality control of the headlights. This system can also provide detailed test data and reports, realize the quantification and traceability of the test results, and provide strong data support for the design optimization, quality control and troubleshooting of the headlights.

[0054] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated vehicle lamp testing and simulation system, characterized in that: It includes a cabinet, a host computer, a front-view camera dark box and a Labcar module; The host computer is used to manage the operation of the entire test and simulation system, monitor the test status, manage test parameters and test data, generate test reports, simulate traffic scenarios and perform vehicle dynamics configuration, and edit and generate automated test scripts and test sequences; The cabinet is used to perform power management on the test and simulation system, provide power and control signals for the Labcar module, and communicate with the host computer and the Labcar module; The front-view camera dark box is used to capture virtual traffic scenes; The Labcar module is used to simulate the behavior characteristics of a real vehicle and establish an experimental environment for testing the effects of headlights.

2. The integrated vehicle lamp testing and simulation system according to claim 1, characterized in that: The cabinet includes an electric control module, a real-time machine, a programmable power supply, a VT board and a fault injection module; The electric control module is used to control, distribute and protect the external AC power supply; The real-time machine is used to communicate with the host computer and the Labcar module; The program-controlled power supply is used to supply power to the VT board; The VT board is used to simulate the conventional power supply on the real vehicle and provide power and control signals for the Labcar module; The fault injection module is used to provide various modes of fault injection for the host computer.

3. The integrated vehicle lamp testing and simulation system according to claim 2, characterized in that: The fault types injected by the fault injection module include short circuit fault to power supply, short circuit fault to ground, short circuit fault between pins and open circuit fault.

4. The integrated vehicle lamp testing and simulation system according to claim 1, characterized in that: The host computer includes scene and dynamics simulation software, host computer test management software and host computer automation editing software; The scenario and dynamics simulation software is used to simulate the traffic environment and perform vehicle dynamics settings; The host computer test management software is used to manage the operation of the entire test and simulation system, monitor the test status, adjust the test parameters, manage the test data, and automatically generate a test report; The host computer automatic editing software is used for automatic editing and generating automatic test scripts and test sequences.

5. The integrated vehicle lamp testing and simulation system according to claim 1, characterized in that: The front-view camera dark box includes a camera, a lens and a display; The display is used to display virtual scene images and videos; The camera captures the virtual scene image and video data on the display through a lens, and outputs them to the Labcar module in real time.

6. The integrated vehicle lamp testing and simulation system according to claim 1, characterized in that: The Labcar module includes a domain controller, a display screen, a vehicle driving operation module, a light module, a high-speed camera and an image acquisition board; The vehicle light module is used to simulate the vehicle lighting system; The domain controller is used to receive and analyze virtual road information and obstacles, as well as receive signals from the host computer test management software and control the lighting module to display accordingly; The display screen is used to display a virtual traffic scene; The high-speed camera is used to collect images of the vehicle light module; The image acquisition board is used to convert the image data collected by the high-speed camera into bus signals and system variables; The vehicle driving operation module is used for the driver to perform vehicle driving operations in a virtual scene.

7. The integrated vehicle lamp testing and simulation system according to claim 6, characterized in that: The vehicle driving operation module includes an accelerator, a brake, a gear, a steering wheel and function buttons, and the function buttons are arranged on the steering wheel.

8. The integrated vehicle lamp testing and simulation system according to claim 6, characterized in that: The vehicle lamp module includes a combination headlamp, a combination taillamp, a daytime running lamp and a grille lamp.

9. A testing method for an integrated vehicle lamp testing and simulation system as claimed in any one of claims 1 to 8, characterized in that: It includes the following steps: Step S1, use the host computer test management software to perform system configuration management, set hardware system parameters, and control the VT board through the experiment management platform in the host computer test management software; Step S2: Build the required dynamic traffic scene through scene and dynamics simulation software to simulate the actual road environment; Step S3, capturing road images and video data through the camera in the dark box of the front camera, and outputting them to the domain controller in real time, and the domain controller receives and analyzes the road information and obstacles; Step S4: The driver performs driving function operations according to the virtual traffic scene, transmits the expected value, and outputs the expected value signal to the host computer test management software; Step S5, the domain controller receives the expected value signal transmitted by the host computer test management software, simulates the image type to be projected by the real vehicle combination headlight, combination taillight, daytime running light and grille light according to the signal content, and controls the vehicle light module to display accordingly; Step S6: Use a high-speed camera to collect images of the combined headlight, combined taillight, daytime running light and grille light of the vehicle light module; the image acquisition card processes the images collected by the high-speed camera, converts them into bus signals and system variables, and transmits the processed data back to the host computer test management software; Step S7: Use the host computer test management software to determine whether the dynamic traffic scene type and the projection pattern signal, brightness, color, and dynamic effect obtained by the image processing module meet the software requirements, output the test results based on the judgment results, and use the host computer automation editing software to automatically generate a test report to complete the system closed-loop test.

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