Test system and test method for intelligent headlights

Abstract

The present invention relates to the field of automobile lamp testing technology, and in particular to a test system for smart headlights and a test method thereof. The system includes: a perception client module, a light scene control application module, a CAN simulation module, and a smart headlight to be tested; the smart headlight to be tested includes: a vehicle light domain controller, a lamp module, a power module, and a communication module; the vehicle light domain controller and the lamp module are both connected to the power module; the lamp module and the communication module are both connected to the vehicle light domain controller; the perception client module, the light scene control application module, and the CAN simulation module are all connected to the vehicle light domain controller through the communication module. A test system for smart headlights of the present invention performs function and performance tests on smart headlights, and supports full-scale real driving data verification based on scenarios. The test system has a simple structure and low implementation cost.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lamp testing, and in particular to a testing system and a testing method for intelligent headlights. Background Art

[0002] Smart headlights use advanced sensors and perception algorithms to sense different road conditions and vehicle driving scenarios, and perform intelligent lighting control based on perception-superimposed network interconnection technology, projecting light bands that adapt to road conditions. They can not only provide functions such as lane keeping and navigation assistance, but also interact with drivers, other vehicles and pedestrians through lights, greatly improving road use efficiency and safety.

[0003] As an important part of a vehicle, the functions and performance of smart headlights need to meet high quality requirements. However, as a new product, from regulations, standards to test methods, they are still in the research and development stage, either using the ordinary car light electro-optical performance test, or directly loading the car for closed-field or actual road testing. Ordinary car light electro-optical performance tests can only detect performance parameters such as light brightness, light type, current and voltage, and cannot realize the scene function and performance detection of smart headlights based on scenes. Direct loading of cars for closed sites has problems such as site restrictions, limited number and types of scenes, environmental limitations, and insufficient data volume. The cost of a single test is expensive and cannot cover and verify the real driving scenes of a large number of users; while actual road tests have safety risks, uncontrollable actual working conditions, low test efficiency, inability to reproduce working conditions, and inability to effectively close the loop for verification. It is difficult to control the boundary conditions of the triggering in actual road tests to meet the real scenes of smart headlight triggering. Therefore, the technical solutions of loading cars for closed-field or actual road testing have the defects of high testing costs, inability to be automated, and inability to support the needs of agile development and rapid iteration of smart headlight control systems. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the present invention provides a test system for smart headlights, which performs function and performance tests on smart headlights and supports full-scale scene-based verification of real driving data. The test system has a simple structure and low implementation cost.

[0006] A test system for a smart headlight according to an embodiment of the present invention comprises: a perception client module, a lighting scene control application module, a CAN simulation module, a communication module, and a smart headlight to be tested;

[0007] The intelligent headlight under test includes: a headlight domain controller, a lamp module, a power module, and a communication module;

[0008] The vehicle light domain controller and the lamp module are both connected to the power module;

[0009] The lamp module and the communication module are both connected to the vehicle light domain controller;

[0010] The perception client module, the light scene control application module and the CAN simulation module are all connected to the vehicle light domain controller through a communication module.

[0011] The beneficial effects of the present invention are that the test system for smart headlights of the present invention solves the problem that professional venues cannot cover the real driving scenarios of a large number of users, verifies the correct and accurate triggering ability of smart headlights under various real working conditions, performs smart headlight scene switches and scene switching through the lighting scene control application module, performs corresponding scene re-injection through the perception client module, inputs the demand for CAN signals through CAN software, and the headlight domain controller receives the perception signal and the CAN signal, drives and controls the smart headlights after judgment and processing, realizes the display of the corresponding scene functions of the smart headlights, can support full-scene testing of smart headlights and long-term high-load continuous operation testing, improves test coverage and test efficiency, and ensures the reliability and stability of smart headlights. In addition, the test system has a simple structure and low implementation cost.

[0012] According to one embodiment of the present invention, the communication module includes an Ethernet converter and a CAN tool.

[0013] According to one embodiment of the present invention, the perception client module and the light scene control application module are connected to the vehicle light domain controller via an Ethernet converter;

[0014] The CAN simulation module is connected to the vehicle light domain controller via a CAN tool;

[0015] The perception client module, the lighting scene control application module and the CAN simulation module are installed on the same intelligent terminal device.

[0016] According to an embodiment of the present invention, the communication module further includes a wireless communication unit.

[0017] According to one embodiment of the present invention, the perception client module is connected to the vehicle light domain controller via an Ethernet converter;

[0018] The CAN simulation module is connected to the vehicle light domain controller via a CAN tool;

[0019] The lighting scene control application module is connected to the vehicle lighting domain controller via a wireless communication unit;

[0020] The perception client module and the CAN simulation module are installed on the same first intelligent terminal device;

[0021] The lighting scene control application module is installed on the second intelligent terminal device;

[0022] A testing method using the above-mentioned intelligent headlight testing system comprises the following steps:

[0023] S1, select a lighting scene through the lighting scene control application module and generate a scene activation signal or a scene switching signal;

[0024] S2, feeding the video scene data back to the headlight domain controller through the perception client module, and the headlight domain controller processes the current video scene data to obtain the target perception data result in the video scene;

[0025] S3, the CAN software obtains a scene activation signal or a scene switching signal of the lighting scene control application module, and generates a CAN signal corresponding to the projection effect based on the scene activation signal or the scene switching signal;

[0026] S4, based on the target perception data result and / or the CAN signal, at least one lighting scene is activated, and the corresponding projection lighting effect of the smart headlight is triggered.

[0027] In the step S1, the lighting scene includes a low beam scene and a high beam scene;

[0028] Among them, the low beam scenes include welcome light, farewell light, pedestrian courtesy projection or door opening warning projection, and the high beam scenes include navigation light blanket, lane change light blanket, narrow lane width indicator light blanket, and ACC distance prompt projection;

[0029] Generate a scene activation signal for the scene or a scene switching signal for modifying the current scene by selecting the scene on the lighting scene control application module;

[0030] The switching between the near-field projection light and the far-field projection light is achieved by means of a double reflector in the components of the lamp module.

[0031] According to an embodiment of the present invention, in step S3, the CAN signal is activated and its value is modified according to the lighting scene through the Panel interface of the CAN software, thereby changing the value of the CAN signal in the communication environment.

[0032] According to one embodiment of the present invention, step S4 specifically includes:

[0033] The lighting scene control application module transmits the generated scene activation signal or scene switching signal to the vehicle light domain controller through the communication module, and turns on the lighting scene function corresponding to the tested smart headlight;

[0034] Open the CAN tool to build a vehicle CAN signal transceiver environment, obtain the CAN signal generated by the CAN software, and transmit the CAN signal to the vehicle light domain controller through the CAN tool;

[0035] The perception client module transmits the target perception data result to the vehicle light domain controller through the communication module;

[0036] The vehicle light domain controller controls the lighting module to perform projection lighting according to the target perception data results and / or CAN signals, and performs verification tests on the lighting effects of the smart headlights.

[0037] According to one embodiment of the present invention, opening the CAN tool to build a vehicle CAN signal transceiver environment includes: creating a corresponding bus project using the CAN tool according to the CAN communication matrix and DBC file of the lighting scene, and parsing the DBC file to load the required CAN signal for sending.

[0038] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0042] Figure 2 It is a structural diagram of embodiment 2 of the present invention.

[0043] Figure 3 It is a schematic diagram of the method flow of embodiment 3 of the present invention.

[0044] In the figure, 1 is the perception client module; 2 is the lighting scene control application module; 3 is the CAN simulation module; 4 is the smart headlight under test; 41 is the vehicle light domain controller; 42 is the lighting module; 43 is the power module; and 45 is the communication module. DETAILED DESCRIPTION

[0045] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Example 1

[0049] The present application embodiment provides a testing system for smart headlights, such as Figure 1 As shown, the system includes: a perception client module 1, a light scene control application module 2, a CAN simulation module 3 and a smart headlight 4 under test; the smart headlight 4 under test includes: a headlight domain controller 41, a lamp module 42, a power module 43, and a communication module 45; the headlight domain controller 41 and the lamp module 42 are both connected to the power module 43; the lamp module 42 and the communication module 45 are both connected to the headlight domain controller 41; the perception client module 1, the light scene control application module 2 and the CAN simulation module 3 are all connected to the headlight domain controller 41 through the communication module 45.

[0050] The lighting scene is selected through the lighting scene control application module 2 to generate a scene activation signal or a scene switching signal; the video scene data is fed back to the headlight domain controller 41 through the perception client module 1, and the headlight domain controller 41 module 1 processes the current video scene data to obtain the target perception data result in the video scene; the CAN software obtains the scene activation signal or scene switching signal of the lighting scene control application module 2, and generates a CAN signal corresponding to the projection effect based on the scene activation signal or the scene switching signal; based on the target perception data result and / or the CAN signal, at least one lighting scene is activated, and the lighting effect of the corresponding smart headlight is triggered.

[0051] In this embodiment, the communication module 45 includes an Ethernet converter and a CAN tool. The perception client module 1 and the light scene control application module 2 are connected to the vehicle light domain controller 41 through the Ethernet converter; the CAN simulation module 3 is connected to the vehicle light domain controller 41 through the CAN tool; the perception client module 1, the light scene control application module 2 and the CAN simulation module 3 are installed on the same intelligent terminal device. The intelligent terminal device can be a PC or a tablet computer. For example, the light scene control application module 2 transmits the generated scene activation signal or scene switching signal to the vehicle light domain controller 41 through the Ethernet converter, and turns on the light scene function corresponding to the tested intelligent headlight 4; turns on the CAN tool to build the vehicle CAN signal transceiver environment, obtains the CAN signal generated by the CAN software, and transmits the CAN signal to the vehicle light domain controller 41 through the CAN tool; the perception client module 1 transmits the target perception data result to the vehicle light domain controller 41 through the Ethernet converter; the vehicle light domain controller 41 activates at least one light scene according to the target perception data result or / and the CAN signal, and controls the lamp module 42 to perform projection lighting, and verifies the lighting effect of the intelligent headlight.

[0052] In this embodiment, the lighting scene includes low-beam scene and high-beam scene; among them, low-beam scene includes but is not limited to welcome light, farewell light, pedestrian-friendly projection, door opening warning projection, and high-beam scene includes but is not limited to navigation light blanket, lane change light blanket, narrow lane width light blanket, ACC distance prompt projection; by selecting a scene on the lighting scene control application module 2, a scene activation signal of the scene or a scene switching signal for modifying the current scene is generated. In addition, in this embodiment, the switching between near-field projection light and far-field projection light can be realized by the double mirror in the components of the lamp module 42.

[0053] The narrow lane width indicator light blanket test is taken as an example to specifically illustrate this embodiment. The narrow lane width indicator light blanket is mainly used in conditions such as dense traffic, narrow shoulders, limited vision, temporary road repairs, etc. The narrow lane width indicator light blanket function of the smart headlights is triggered to provide fill light, projecting a light blanket with the same width as the vehicle to ensure the safety of the vehicle's passage. During the test, first generate a corresponding scene activation signal through the light scene control application module 2 according to the test requirements (such as a narrow lane width indicator light blanket test), turn on the corresponding light scene function of the smart headlights, and use the video scene data as input to feed back to the vehicle light domain controller 41 through the perception client module 1. The video scene data includes scenes with heavy traffic, narrow roads, narrow bridges, low light, temporary road repairs, roadblocks, and road narrowing scenes. When the vehicle light domain controller 41 receives the video scene data, it senses and detects that the current lane meets the narrow lane requirements, such as: there is a roadblock On a road section, if the lane width formed by the roadblock is smaller than the standard width of the narrow lane defined by the traffic regulations, the scene perception result "narrow lane" will be output; and at this time, when the CAN signal received by the headlight domain controller 41 also meets the conditions (such as the gear is in D gear and the vehicle speed is less than a certain speed), the headlight domain controller 41 drives the lamp module 42 to project a narrow lane width light blanket. If the output scene perception result changes or the CAN signal does not meet the conditions (such as the CAN signal is in R gear or the vehicle speed is greater than a certain speed), the headlight domain controller 41 controls the lamp module 42 to turn off the narrow lane width light blanket projection. By setting the trigger conditions of different projection lighting effects of smart headlights, it is easy to capture the trigger errors of smart headlight projection scenes and more comprehensive test coverage.

[0054] In this embodiment, for example, the "narrow road" video scene data can be re-injected into different "narrow road" video scene data to verify the narrow road width light blanket function of the smart headlight under different working conditions, thereby collecting the accuracy, false triggering rate and missed triggering rate of the narrow road width light blanket function of the smart headlight under various working conditions. Therefore, by re-injecting scene technology to verify the function of the smart headlight, the scene coverage rate is high, the reliability of the smart headlight function is improved, and the value of data accumulation is also improved.

[0055] It should be noted that the video scene data can be automatically generated according to the test case requirements, such as automatically generating a video scene data set based on scene labels using an automated data management platform.

[0056] In this embodiment, the CAN signal is activated and its value is modified according to the lighting scene through the Panel interface of the CAN software, and the value of the CAN signal in the communication environment is changed. Specifically, the signal that needs to be activated or the value is changed needs to be extracted and constructed in the Panel interface according to the test requirements, and linked with the CAPL script or other CAN tool application script. When the execution script modifies the CAN signal through the Panel interface, the value of the corresponding signal in the vehicle CAN communication environment can be changed. The set Panel interface is convenient for CAN signal modification and more conducive to automated operation.

[0057] In this embodiment, opening the CAN tool to build the vehicle CAN signal receiving and transmitting environment includes: creating a corresponding bus project using the CAN tool according to the CAN communication matrix and DBC file of the lighting scene, and parsing the DBC file to load the required CAN signal for sending.

[0058] In this embodiment, an automation script is designed according to the test requirements, and by executing the automation script, the test of the smart headlights is completed in a fully automatic, high-coverage, and high-load manner, such as: the automation design of lighting scene opening, lighting, and lighting scene switching according to the test requirements; the activation and value of the corresponding scene CAN signal are automatically modified through the Panel interface according to the test requirements; the video scene data is automatically generated according to the test requirements to realize the scheduling and test execution of different test cases, which can quickly complete the test cycle at a low cost.

[0059] In this embodiment, a performance monitoring script is also provided to record the test data, and a test report is automatically generated after the test is completed, so as to judge whether to optimize the control system of the smart headlight according to the test report.

[0060] This embodiment performs regression testing and long-term stability testing on the software updated during the research and development phase of the smart headlights. The test system of the present invention is used to make timely design adjustments based on test feedback and then perform regression verification again, thereby accelerating the iteration speed of the system and supporting agile development.

[0061] In this embodiment, the lamp of the lamp module 42 can be a front HD lamp, a DLP lamp, or a tail lamp, an ISD lamp, but is not limited thereto.

[0062] The test system for smart headlights of this embodiment solves the problem that professional venues cannot cover the real driving scenarios of a large number of users, verifies the correct and accurate triggering ability of smart headlights under various real working conditions, performs lamp scene switches and scene switching through the light scene control application module 2, performs corresponding scene re-injection through the perception client module 1, and inputs CAN signal requirements through the CAN software. The headlight domain controller 41 controls the smart headlights to realize the corresponding scene function display of the smart headlights, and can support full-scene testing of smart headlights and long-term high-load continuous operation testing, improve test coverage and test efficiency, and ensure the reliability and stability of smart headlights. In addition, the test system has a simple structure and low implementation cost.

[0063] Example 2

[0064] like Figure 2 As shown, the test system for smart headlights in the embodiment of the present application is different from the first embodiment in that: the communication module 45 also includes a wireless communication unit. The perception client module 1 is connected to the vehicle light domain controller 41 through an Ethernet converter; the CAN simulation module 3 is connected to the vehicle light domain controller 41 through a CAN tool; the light scene control application module 2 is connected to the vehicle light domain controller 41 through a wireless communication unit; the perception client module 1 and the CAN simulation module 3 are installed on the same first smart terminal device; the light scene control application module 2 is installed on the second smart terminal device; the first smart terminal device can be a PC or a tablet computer. The second smart terminal device can be a mobile phone.

[0065] In this embodiment, the communication between the lighting scene control application module 2 and the vehicle light domain controller 41 is established through a wireless communication unit, which can better simulate the communication of the smart headlight control system after it is installed on the actual vehicle and connected to the vehicle-mounted WIFI device with high fidelity, thereby ensuring the stability and sensitivity of the system under WIFI communication.

[0066] The foregoing Figure 1 The various variations and specific examples of a test system for smart headlights in the first embodiment are also applicable to the second embodiment. Through the above detailed description of the first embodiment, those skilled in the art can clearly understand the implementation method of the second embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0067] Example 3

[0068] A test method using the above intelligent headlight test system, such as Figure 3 As shown, the test method includes the following steps:

[0069] S1, select a lighting scene through the lighting scene control application module 2 and generate a scene activation signal or a scene switching signal;

[0070] S2, the video scene data is fed back to the headlight domain controller 41 through the perception client module 1, and the headlight domain controller 41 processes the current video scene data to obtain at least one target perception data result;

[0071] S3, the CAN software obtains the scene activation signal or scene switching signal of the lighting scene control application module 2, and generates a CAN signal corresponding to the projection effect based on the scene activation signal or scene switching signal;

[0072] S4, based on the target perception data result and / or the CAN signal, at least one lighting scene is activated, and the lighting effect of the corresponding smart headlight is triggered.

[0073] In this embodiment, in step S1, the lighting scene includes a low beam scene and a high beam scene;

[0074] Among them, low beam scenes include but are not limited to welcome light, farewell light, pedestrian courtesy projection or door opening warning projection, and high beam scenes include but are not limited to pilot light blanket, lane change light blanket, narrow lane width indicator light blanket or ACC distance prompt projection;

[0075] By performing scene selection on the lighting scene control application module 2, a scene activation signal of the scene or a scene switching signal for modifying the current scene is generated.

[0076] In this embodiment, the switching between the near-field projection light and the far-field projection light can be achieved by using a double mirror in the components of the lamp module 42 .

[0077] In this embodiment, in step S3, the value of the CAN signal is modified according to the lighting scene through the Panel interface of the CAN software to change the value of the CAN signal in the communication environment.

[0078] In this embodiment, step S4 specifically includes:

[0079] The lighting scene control application module 2 transmits the generated scene activation signal or scene switching signal to the vehicle light domain controller 41 through the communication module 45, and turns on the lighting scene function corresponding to the tested smart headlight 4;

[0080] Open the CAN tool to build the vehicle CAN signal transceiver environment, obtain the CAN signal generated by the CAN software, and transmit the CAN signal to the vehicle light domain controller 41 through the CAN tool;

[0081] The perception client module 1 transmits the target perception data result to the vehicle light domain controller 41 through the communication module 45 by backfeeding;

[0082] The vehicle light domain controller 41 controls the lighting module 42 to perform projection lighting according to the target perception data results and / or the CAN signal, and performs verification test on the lighting effect of the smart headlights.

[0083] In this embodiment, opening the CAN tool to build the vehicle CAN signal receiving and transmitting environment includes: creating a corresponding bus project using the CAN tool according to the CAN communication matrix and DBC file of the lighting scene, and parsing the DBC file to load the required CAN signal for sending.

[0084] The foregoing Figure 1 The various variations and specific examples of a test system for smart headlights in Embodiment 1 are also applicable to a test method for smart headlights in this embodiment. Through the above detailed description of a test system for smart headlights, those skilled in the art can clearly know the implementation method of a test method for smart headlights in this embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0085] In summary,

[0086] (1) The present invention is used for a test system and a test method for smart headlights. The light scene control application module 2 issues a light scene command. Combined with the scene data feedback of the perception client module 1 and the real-time control change of the CAN signal by the CAN software, the vehicle light domain controller 41 drives the smart headlight to complete the corresponding scene projection lighting function display. This link realizes a closed-loop test of the smart headlight control system indoors.

[0087] (2) The present invention has a low implementation cost, does not require a professional closed site, does not require a real vehicle to be on the public road, eliminates the problem of uncontrollable external environment and insufficient scene data, and the test results obtained after full scene data verification in a highly controlled test environment are more accurate and reliable; the repeatable test execution of the test system facilitates the reproduction of defects and debugging and solution verification; in addition, the test system can be flexibly configured with different parameters to analyze its performance to achieve the optimal solution for the lighting control system;

[0088] (3) The present invention performs basic testing and regression testing on the software updated during the development phase of the intelligent headlight control system. The use of hardware-in-the-loop can be more convenient and faster and has the same authenticity as real vehicle testing. At the same time, the design can be adjusted in a timely manner according to the test feedback and can be quickly regressed, which speeds up the iteration speed of the system, supports agile development, and ensures product quality.

[0089] (4) The present invention utilizes the existing massive real driving scene data for re-injection, and verifies the triggering performance of the lighting control system in various scenarios with high coverage. For example, the navigation light blanket function of the smart headlights can be verified by using the re-injected data at various time points, on various highways, elevated roads, main urban roads, rural roads, mountain roads, and in various weather conditions. This solves the problem of limited closed-field test scenarios and the problem of unsafe social road testing and environmental restrictions.

[0090] (5) The present invention can automatically switch the intelligent headlights in various scenarios and operate continuously at high load for a long time, thereby ensuring the stability of the test system operation. At the same time, it does not require manual operation, saving a lot of manpower investment, further reducing the implementation cost and improving the test efficiency.

[0091] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A test system for smart headlights, characterized in that: The system comprises: a perception client module (1), a lighting scene control application module (2), a CAN simulation module (3), a communication module and a smart headlight to be tested (4); The intelligent headlight (4) under test comprises: a headlight domain controller (41), a lamp module (42), a power module (43) and a communication module (45); The vehicle light domain controller (41) and the lamp module (42) are both connected to the power module (43); The lamp module (42) and the communication module (45) are both connected to the vehicle lamp domain controller (41); The perception client module (1), the light scene control application module (2) and the CAN simulation module (3) are all connected to the vehicle light domain controller (41) via a communication module (45); The testing method of the testing system comprises the following steps: S1, selecting a lighting scene through a lighting scene control application module (2) to generate a scene activation signal or a scene switching signal; S2, feeding the video scene data back to the headlight domain controller (41) through the perception client module (1), and the headlight domain controller (41) processes the current video scene data to obtain target perception data results in the video scene; S3, the CAN software in the CAN simulation module (3) obtains the scene activation signal or the scene switching signal of the lighting scene control application module (2), and generates a CAN signal corresponding to the projection effect based on the scene activation signal or the scene switching signal; S4, based on the target perception data result and / or the CAN signal, at least one lighting scene is activated, and the corresponding projection effect of the smart headlight is triggered.

2. The test system for smart headlights according to claim 1, characterized in that: The communication module (45) of the perception client includes an Ethernet converter and a CAN tool.

3. The test system for smart headlights according to claim 2, characterized in that: The perception client module (1) and the light scene control application module (2) are connected to the vehicle light domain controller (41) via an Ethernet converter; The CAN simulation module (3) is connected to the vehicle light domain controller (41) via a CAN tool; The perception client module (1), the lighting scene control application module (2) and the CAN simulation module (3) are installed on the same intelligent terminal device.

4. The test system for smart headlights according to claim 2, characterized in that: The communication module (45) also includes a wireless communication unit.

5. The test system for smart headlights according to claim 4, characterized in that: The perception client module (1) is connected to the vehicle light domain controller (41) via an Ethernet converter; The CAN simulation module (3) is connected to the vehicle light domain controller (41) via a CAN tool; The lighting scene control application module (2) is connected to the vehicle lighting domain controller (41) via a wireless communication unit; The perception client module (1) and the CAN simulation module (3) are installed on the same first intelligent terminal device; The lighting scene control application module (2) is installed on the second intelligent terminal device.

6. The test system for smart headlights according to claim 1, characterized in that: In the step S1, the lighting scene includes a low beam scene and a high beam scene; The low beam scenes include welcome light, farewell light, pedestrian courtesy projection or door opening warning projection, and the high beam scenes include navigation light blanket, lane change light blanket, narrow lane width indicator light blanket, and ACC distance prompt projection; By selecting a lighting scene on the lighting scene control application module (2), a scene activation signal for the scene is generated or a scene switching signal for modifying the current scene is generated; The switching between the near-field projection light and the far-field projection light is achieved by means of a double reflector in a component of the lamp module (42).

7. The test system for smart headlights according to claim 6, characterized in that: In step S3, the CAN signal is activated and its value is modified according to the lighting scene through the Panel interface of the CAN software, thereby changing the value of the CAN signal in the communication environment.

8. The test system for smart headlights according to claim 7, characterized in that: Step S4 specifically includes: The lighting scene control application module (2) transmits the generated scene activation signal or scene switching signal to the vehicle light domain controller (41) via the communication module (45), thereby turning on the lighting scene function corresponding to the intelligent headlight (4) under test; Open the CAN tool to build a vehicle CAN signal transceiver environment, obtain the CAN signal generated by the CAN software, and transmit the CAN signal to the vehicle light domain controller (41) through the CAN tool; The perception client module (1) transmits the target perception data result to the vehicle light domain controller (41) via the communication module (45); The vehicle light domain controller (41) controls the lighting module (42) to perform projection lighting according to the target perception data result and / or the CAN signal, thereby performing a verification test on the lighting effect of the intelligent headlight.

9. The test system for smart headlights according to claim 8, characterized in that: Open the CAN tool to build the vehicle CAN signal receiving and sending environment, including: according to the CAN communication matrix and DBC file of the lighting scene, use the CAN tool to create the corresponding bus project, and parse the DBC file to load the required CAN signal for sending.

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