Video camera obscura rack test platform and test method
By using a video darkroom bench test platform and automated testing processes, the problems of diverse hardware and software types and complex environment setup in ADAS testing have been solved, enabling low-cost, high-efficiency, and high-safety HIL testing and reducing the risks of real-vehicle testing.
Patent Information
- Application Number
- CN202511011301.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-10-28
AI Technical Summary
Existing ADAS testing solutions involve a wide variety of hardware and software, complex test environment setup, high costs, low efficiency, and high risks associated with real-vehicle testing.
A video darkroom bench test platform is adopted, including a video darkroom module, a multi-functional forward-looking monocular camera controller, an information processing unit, and a simulation processing unit. It achieves automated testing process through HDMI, CAN communication, and Ethernet connection, and uses VTD simulation software to simulate complex traffic environments to form a closed-loop feedback system.
It simplifies the setup of the testing environment, reduces costs, improves testing efficiency and safety, reduces reliance on real-vehicle testing, and significantly enhances test coverage and reliability.
Smart Images

Figure CN120848253A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of intelligent driving simulation testing technology, and relates to a video darkroom bench test platform and test method. Background Technology
[0002] Advanced Driving Assistance Systems (ADAS) are control systems specifically designed to enhance vehicle safety. They rely on various high-precision sensors, such as cameras and radar, installed on the vehicle. These sensors accurately capture key information such as road targets and lane markings, thereby enabling the controller's algorithmic functions.
[0003] Currently, most vehicles use multi-functional forward-looking monocular cameras to implement ADAS functions, such as Forward Collision Warning (FCW) and Automatic Emergency Braking (AEB). To ensure the safety and stability of monocular camera functions, HIL (Hardware-in-the-Loop) testing is usually performed before real-vehicle testing to reduce testing time and lower real-vehicle testing costs. However, existing testing solutions employ a variety of hardware and software, with expensive software equipment and complex test environment setup. Summary of the Invention
[0004] The purpose of this invention is to provide a video darkroom bench test platform and test method to solve the technical problems of existing test solutions using a variety of hardware and software and complex test environment setup.
[0005] To achieve the above objectives, the present invention employs the following technical solution: In a first aspect, the present invention provides a video darkroom bench testing platform, comprising: The video darkroom module is used to play VTD simulation footage; A multi-functional forward-looking monocular camera controller located in the video dark box module is used to acquire vehicle information in the VTD simulation image; The system includes an information processing unit and a simulation processing unit, wherein the information processing unit is communicatively connected to the multi-functional forward-looking monocular camera controller. The information processing unit is used to control the operation of the multi-functional forward-looking monocular camera controller and the simulation processing unit, to receive vehicle information and transmit it to the simulation processing unit, and to receive test data from the simulation processing unit and generate a report. The simulation processing unit is used to generate, update and run VTD simulation screens based on vehicle information, and transmit the VTD simulation screens to the video dark box module for playback, and generate test data based on the VTD simulation screens.
[0006] Furthermore, the video dark box module includes a video dark box, a display screen, and a teleconverter lens. The teleconverter lens is located between the display screen and the multi-functional forward-looking monocular camera controller. The display screen is connected to the simulation processing unit via HDMI.
[0007] Furthermore, the multi-functional forward-looking monocular camera controller is connected to the information processing unit via CAN communication; The information processing unit and the simulation processing unit communicate via Ethernet.
[0008] Furthermore, the information processing unit includes: an ECU-TEST automated test management module, a MATLAB / Simulink module, and a CANape communication module; The ECU-TEST automated test management module is used to control the start and stop of the multi-functional forward-looking monocular camera controller, the simulation processing unit, the MATLAB / Simulink module and the CANape communication module, to control the simulation processing unit to switch VTD simulation scenarios, and to receive test data from the simulation processing unit and generate test evaluations and test reports. The MATLAB / Simulink module is used to obtain simulation information from the simulation processing unit and transmit it to the multi-functional forward-looking monocular camera controller, and to receive vehicle information from the multi-functional forward-looking monocular camera controller and transmit it to the simulation processing unit. The CANape communication module is used to configure wake-up messages and transmit them to the multi-functional forward-looking monocular camera controller.
[0009] Furthermore, the ECU-TEST automated test management module includes: The simulation control module is used to control the simulation processing unit to switch simulation scenes; The control command sending module is used to control the start and stop of the multi-functional forward-looking monocular camera controller, the simulation processing unit, the MATLAB / Simulink module and the CANape communication module; The test report generation module is used to receive the test data from the simulation processing unit and generate test evaluations and test reports.
[0010] Furthermore, the simulation control module configures test case scenarios according to the test case table, and sets the simulation execution time and test evaluation indicators; The control command sending module sends VTD start and stop commands to the simulation processing unit via the SSH protocol.
[0011] Furthermore, the simulation processing unit includes a VTD module, which is used for: Run the VTD simulation screen; It receives control commands from the information processing unit, and starts the simulation, configures the VTD interface, and ends the simulation according to the control commands.
[0012] Furthermore, the CAN communication device is a VECTOR VN1640A device; The information processing unit is a Windows PC; The simulation processing unit is an Ubuntu PC.
[0013] Secondly, the present invention provides a video darkroom bench test method, comprising the following steps: The information processing unit controls the activation of the multi-functional forward-looking monocular camera controller and the simulation processing unit. The simulation processing unit generates and runs the VTD simulation screen, and transmits the VTD simulation screen to the video darkroom module for playback; The vehicle information in the VTD simulation image inside the video dark box module is obtained by the multi-functional forward-looking monocular camera controller, and the vehicle information is transmitted to the information processing unit. The information processing unit receives vehicle information and transmits it to the simulation processing unit. The simulation processing unit is used to generate, update and run VTD simulation screens based on the vehicle information. After the simulation is completed, the simulation processing unit sends the test data to the information processing unit, which then generates a report based on the test data.
[0014] Furthermore, the video darkroom module includes a display screen; In the step of acquiring vehicle information in the VTD simulation image within the video dark box module through the multi-functional forward-looking monocular camera controller, visual calibration is performed between the multi-functional forward-looking monocular camera controller and the display screen to ensure that the distance at which the multi-functional forward-looking monocular camera controller identifies the target object is the same as the set distance.
[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention's video darkroom module is used to play VTD simulation images. The video darkroom module provides a controllable, stable, and ambient light-free optical testing environment, which is beneficial to the stability of test results and greatly simplifies the setup of the testing environment. A multi-functional forward-looking monocular camera controller is used to acquire vehicle information within the VTD simulation image. The multi-functional forward-looking monocular camera controller performs testing and data acquisition in a controlled environment, avoiding the risks and uncontrollable factors of real-vehicle testing. The information processing unit automatically starts, manages, and synchronizes the entire testing process, reducing manual intervention and improving testing efficiency, reducing manual operation steps and time, and increasing testing efficiency and repeatability. The simulation processing unit receives the perception results from the multi-functional forward-looking monocular camera controller in real time and dynamically adjusts the virtual scene in the VTD accordingly, forming a closed-loop feedback system. This software simulates complex and ever-changing traffic environments, replacing expensive hardware equipment that requires a large number of real targets, and can easily create various extreme or dangerous scenarios. This invention, a video darkroom bench test platform, integrates a video darkroom environment, a monocular camera controller, an automated control unit, and powerful virtual simulation software to create a low-cost, easy-to-build, highly automated, and high-coverage HIL test environment. This reduces costs and significantly improves testing efficiency and security.
[0016] This invention provides a low-cost, high-efficiency, high-coverage, and high-security HIL (High-Intensity Module) testing solution through automated process control, high-fidelity virtual scene generation and playback, camera-sensing information acquisition, and dynamic closed-loop interaction. It lowers the testing threshold and cost, significantly improves testing efficiency, coverage, and reliability, and substantially reduces reliance on time-consuming, costly, and high-risk real-vehicle testing, thus accelerating the development of ADAS (Advanced Driver Assistance Systems) functions. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the connection of the video darkroom test platform according to an embodiment of the present invention; Figure 2 This is a flowchart of the method of the present invention.
[0018] The components are as follows: 100, video darkroom module; 101, video darkroom; 102, display screen; 103, teleconverter lens; 200, multi-functional forward-looking monocular camera controller; 300, information processing unit; 400, simulation processing unit. Detailed Implementation
[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0020] It should be noted that the terms "first," "second," etc., in the specification and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0021] The relevant terms in the embodiments of this invention are explained as follows: The VECTOR VN1640A CAN communication device is a professional CAN communication device widely used in the field of automotive electronics testing. The VECTOR VN1640A is a high-performance vehicle network interface card.
[0022] Windows PC and Ubuntu PC refer to computer devices that run different operating systems; ECU-TEST is an automated ECU testing platform that automates functional testing of ECUs (Electronic Control Units) and supports test case design, execution, and report generation for systems such as ADAS and powertrain.
[0023] MATLAB / Simulink, short for MATrix LABoratory (MATLAB) + Simulation and Link (Simulink), is a suite of tools for mathematical modeling and dynamic system simulation. CANape, short for CAN Calibration and Measurement Protocol Application, is an ECU calibration and diagnostic measurement tool that measures internal ECU signals in real time, calibrates parameters, and supports diagnostic protocols. VTD, short for Virtual Test Drive, is a virtual test driving simulation platform. UDP, short for User Datagram Protocol, is a protocol for transmitting user datagrams. SSH, short for Secure Shell Protocol, is a secure shell protocol. HDMI, short for High-Definition Multimedia Interface, is a fully digital audio and video transmission interface standard.
[0024] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1: See also Figure 1 The present invention discloses a video darkroom bench test platform, comprising: a video darkroom module 100, a multi-functional forward-looking monocular camera controller 200, an information processing unit 300, and a simulation processing unit 400; In this embodiment of the invention, the multi-functional forward-looking monocular camera controller 200 is connected to the information processing unit 300 via CAN communication; The information processing unit 300 and the simulation processing unit 400 communicate via Ethernet.
[0025] The video dark box module 100 is used to play VTD simulation images. It provides a controllable, stable, and ambient light-free optical testing environment, which is beneficial to the stability of test results. The VTD simulation images displayed on the screen of the video dark box module 100 simulate real road scenarios, replacing the complex and ever-changing external environment in actual vehicle testing, greatly simplifying the setup of the testing environment.
[0026] The multi-functional forward-looking monocular camera controller 200, located within the video darkroom module 100, is used to acquire vehicle information from the VTD simulation image. The multi-functional forward-looking monocular camera controller 200 perceives the virtual road scene ahead (i.e., the VTD image on the screen) as a real scene, identifies targets in the image, and extracts relevant information. The multi-functional forward-looking monocular camera controller 200 performs testing and data acquisition in a controlled environment, avoiding the risks and uncontrollable factors of real-vehicle testing.
[0027] In this embodiment of the invention, the video darkroom module 100 includes a video darkroom 101, a display screen 102, and a teleconverter lens 103. The teleconverter lens 103 is located between the display screen 102 and the multi-functional forward-looking monocular camera controller 200. The display screen 102 is connected to the simulation processing unit 400 via HDMI.
[0028] The information processing unit 300 is communicatively connected to the multi-functional forward-looking monocular camera controller 200; The information processing unit 300 controls the operation of the multi-functional forward-looking monocular camera controller 200 and the simulation processing unit 400. It receives vehicle information and transmits it to the simulation processing unit 400, and receives test data from the simulation processing unit 400 and generates reports. The information processing unit 300 automatically starts, manages, and synchronizes the entire testing process, reducing manual intervention, improving testing efficiency, and decreasing manual operation steps and time, thus enhancing testing efficiency and repeatability.
[0029] In this embodiment of the invention, the information processing unit 300 includes: an ECU-TEST automated test management module, a MATLAB / Simulink module, and a CANape communication module; The ECU-TEST automated test management module is used to control the start and stop of the multi-functional forward-looking monocular camera controller 200, the simulation processing unit 400, the MATLAB / Simulink module and the CANape communication module, to control the simulation processing unit 400 to switch VTD simulation scenarios, and to receive test data from the simulation processing unit 400 and generate test evaluation and test report. The MATLAB / Simulink module is used to obtain simulation information from the simulation processing unit 400 and transmit it to the multi-functional forward-looking monocular camera controller 200, and to receive vehicle information from the multi-functional forward-looking monocular camera controller 200 and transmit it to the simulation processing unit 400. The CANape communication module is used to configure wake-up messages and transmit them to the multi-functional forward-looking monocular camera controller 200.
[0030] In this embodiment of the invention, the ECU-TEST automated test management module includes: The simulation control module is used to control the simulation processing unit 400 to switch simulation scenes; The control command sending module is used to control the start and stop of the multi-functional forward-looking monocular camera controller 200, the simulation processing unit 400, the MATLAB / Simulink module and the CANape communication module; The test report generation module is used to receive the test data from the simulation processing unit 400 and generate test evaluations and test reports.
[0031] In this embodiment of the invention, the simulation control module configures test case scenarios according to the test case table and sets the simulation execution time and test evaluation indicators; The control command sending module sends VTD start and stop commands to the simulation processing unit 400 via the SSH protocol.
[0032] The simulation processing unit 400 is used to generate, update, and run VTD simulation images based on vehicle information. Specifically, the simulation processing unit 400 generates a new VTD simulation image based on the vehicle information, updates the previous new VTD simulation image using the new VTD simulation image, runs the updated VTD simulation image, and transmits the VTD simulation image to the video darkroom module 100 for playback. Test data is generated based on the VTD simulation image. The simulation processing unit 400 receives the perception results from the multi-functional forward-looking monocular camera controller 200 in real time and dynamically adjusts the virtual scene in the VTD accordingly, forming a closed-loop feedback system. Through software (VTD), it simulates complex and ever-changing traffic environments, replacing expensive hardware equipment that requires a large number of real targets, and can easily create various extreme or dangerous scenarios.
[0033] In this embodiment of the invention, the simulation processing unit 400 includes a VTD module, which is used for: Run the VTD simulation screen; The system receives control commands from the information processing unit 300, and starts the simulation, configures the VTD interface, and ends the simulation according to the control commands.
[0034] In this embodiment of the invention, the CAN communication device is a VECTOR VN1640A device; The information processing unit 300 is a Windows PC; The simulation processing unit 400 is an Ubuntu PC.
[0035] Compared to traditional HIL test benches, this invention significantly reduces the types and quantities of hardware required, including complex physical target simulators, high-precision motion platforms, and numerous sensor interface boards. The main task is to build a darkroom and connect several computers / controllers. This eliminates the cumbersome processes of complex mechanical structure installation, extensive wiring connections, and signal conditioning equipment configuration required by traditional HIL test benches. Environment setup requirements are reduced, eliminating the need for large laboratories or special foundations, making deployment more flexible and faster. From test scenario loading, camera activation, data acquisition, dynamic scenario updates to result analysis and report generation, the entire process can be automatically controlled by the information processing unit 300, significantly improving testing efficiency. The VTD software can easily and safely create various dangerous, extreme, rare, or regulatory-required test scenarios, which are high-risk, high-cost, or difficult to reproduce in real-vehicle testing. Furthermore, the closed-loop feedback mechanism allows testing to simulate the dynamic impact of camera decisions on the environment. This invention also greatly reduces the number of test cases requiring real-vehicle verification, shortens the real-vehicle testing cycle, and reduces mileage consumption, fuel consumption, vehicle wear and tear, labor costs, and potential risks associated with real-vehicle testing.
[0036] This invention, a video darkroom bench test platform, integrates a video darkroom environment, a monocular camera controller, an automated control unit, and powerful virtual simulation software (VTD) to create a low-cost, easy-to-build, highly automated, and high-coverage HIL test environment. This reduces costs and significantly improves testing efficiency and security.
[0037] Based on the aforementioned video darkroom bench test platform, this invention also discloses a video darkroom bench test method, see [link to relevant documentation]. Figure 2 This includes the following steps: S1, through the information processing unit 300 controlling the multi-functional forward-looking monocular camera controller 200 and the simulation processing unit 400 to start, realizes the automated start of the test process.
[0038] S2, the simulation processing unit 400 generates and runs the VTD simulation screen, and transmits the VTD simulation screen to the video dark box module 100 for playback, creating an initial, controllable virtual test environment.
[0039] S3, the multi-functional forward-looking monocular camera controller 200 acquires vehicle information from the VTD simulation screen in the video dark box module 100 and transmits the vehicle information to the information processing unit 300. The multi-functional forward-looking monocular camera controller 200 performs testing and data acquisition in a controlled environment, avoiding the risks and uncontrollable factors of real vehicle testing. S4, the information processing unit 300 receives vehicle information and transmits it to the simulation processing unit 400. The simulation processing unit 400 is used to generate, update and run VTD simulation screens based on vehicle information, realize closed-loop simulation and dynamic scene interaction, dynamically adjust the virtual scene in real time, and form a real closed loop of "perception-decision-environmental feedback". S5. After the simulation is completed, the simulation processing unit 400 sends the test data to the information processing unit 300. The information processing unit 300 generates a report based on the test data, which greatly improves the testing efficiency and evaluation objectivity, reduces human interpretation errors and report writing time, and supports the rapid summary of batch test results.
[0040] In this embodiment of the invention, the video darkroom module 100 includes a display screen 102; In the step of acquiring vehicle information in the VTD simulation image within the video dark box module 100 through the multi-functional forward-looking monocular camera controller 200, visual calibration is performed between the multi-functional forward-looking monocular camera controller 200 and the display screen 102 to ensure that the distance at which the multi-functional forward-looking monocular camera controller 200 identifies the target object is the same as the set distance.
[0041] This invention's video darkroom bench testing method constructs a low-cost, high-efficiency, high-coverage, and high-security HIL (High-Intensity Interaction) testing solution through automated process control, high-fidelity virtual scene generation and playback, camera-sensor information acquisition, and dynamic closed-loop interaction. It lowers the testing threshold and cost, significantly improves testing efficiency, coverage, and reliability, and significantly reduces reliance on time-consuming, costly, and high-risk real-vehicle testing, thus accelerating the development of ADAS (Advanced Driver Assistance Systems) functions.
[0042] Example 2: The overall concept of this invention is as follows: On the hardware side, the multi-functional forward-looking monocular camera controller 200 is connected to the first client Windows PC for data communication via the VECTOR CAN communication device VN1640A, and the first client Windows PC is connected to the second client Ubuntu PC for data communication via Ethernet; on the software side, a data closed loop is achieved between the first client Windows PC, the second client Ubuntu PC, and the multi-functional forward-looking monocular camera controller 200 through multiple communication protocols, and the ECU-TEST automated test management module is used for automated execution of test cases, test evaluation, and report generation.
[0043] See also Figure 1 This invention proposes a video darkroom bench test platform, including a multi-functional forward-looking monocular camera controller 200, a VECTOR CAN communication device VN1640A, a video darkroom module 100, a first client, and a second client; the first client is a Windows PC, including an ECU-TEST automated test management module, a MATLAB / Simulink module, and a CANape communication module, and the second client is an Ubuntu PC, including a VTD module; the first client and the second client are linked via Ethernet communication.
[0044] The multi-functional forward-looking monocular camera controller is used to run the controller algorithm program and output the vehicle control information obtained by the controller algorithm based on the control information input by the Simulink module. The VECTOR CAN communication device VN1640A is used to connect the first client and the multi-functional forward-looking monocular camera controller for CAN communication. The video dark box module 100 provides a physical environment for HIL testing and is used to play VTD simulation images and fix the multi-functional forward-looking monocular camera controller 200. The MATLAB / Simulink module is used to simulate the signal node model of the multi-functional forward-looking monocular camera controller. It obtains simulation information from the VTD module and sends it to the multi-functional forward-looking monocular camera controller 200. It also sends the vehicle control information output by the multi-functional forward-looking monocular camera controller 200 to the VTD module. The MATLAB / Simulink module and the VTD module are connected via UDP communication. The CANape communication module is used for sending wake-up messages to the multi-functional forward-looking monocular camera controller 200; The VTD module is used to run the VTD simulation screen, receive control commands sent by the ECU-TEST automated test management module, start the simulation according to the control commands, configure the VTD interface, and end the simulation. The ECU-TEST automated test management module is used for automated testing of the HIL video darkroom bench, specifically including: switching test cases; sending control commands to the VTD module to control the VTD module to switch simulation scenarios; sending control commands to the MATLAB / Simulink module to run the Simulink simulation module; and collecting test data and generating test reports after the test is completed.
[0045] Based on the aforementioned video darkroom bench test platform, this embodiment also discloses a video darkroom bench test method, including the following steps: S1: Establish the hardware connection link between the multi-functional forward-looking monocular camera controller 200, the information processing unit 300, and the simulation processing unit 400, and debug the data communication between each node; S2: In MATLAB / Simulink, a 200-node simulation model of a multi-functional forward-looking monocular camera controller is built, along with a Simulink-VTD communication interface model. The MATLAB / Simulink module and the VTD module are connected via UDP communication. The controller node simulation model sends the received VTD information to the multi-functional forward-looking monocular camera controller via the VECTOR CAN communication device VN1640A. The controller sends vehicle control signals to the controller node simulation model via the VECTOR CAN communication device VN1640A. The controller node simulation model then sends the vehicle control signals to the VTD via UDP communication. S3: In the CANape communication module, configure the wake-up message of the multi-function forward-looking monocular camera controller 200 and send it to the multi-function forward-looking monocular camera controller 200 through the VECTOR CAN communication device VN1640A; S4: In the video dark box module 100, perform visual calibration between the multi-functional forward-looking monocular camera controller 200 and the display screen 102 to ensure that the distance at which the controller identifies the target object is the same as the set distance. S5: The ECU-TEST automated test management module sends the VTD start command to the second client via the SSH protocol; S6: The ECU-TEST automated test management module directly controls the start-up and shutdown of the MATLAB / Simulink model of the startup information processing unit 300; S7: The ECU-TEST automated test management module configures test case scenarios based on the test case table, sets simulation execution time and test evaluation indicators, and generates test case reports after the test is completed.
[0046] The technical solution of this invention comprises a VECTOR CAN communication device VN1640A, a multi-functional forward-looking monocular camera controller 200, a Windows PC, and an Ubuntu PC. The multi-functional forward-looking monocular camera controller 200 connects to the first client Windows PC via the VECTOR CAN communication device VN1640A. The information processing unit 300 on the Windows PC is equipped with the ECU-TEST automated test management module, a MATLAB / Simulink module, and a CANape module; the simulation processing unit 400 on the Ubuntu PC is equipped with VTD simulation software. The CANape module sends a wake-up message to the multi-functional forward-looking monocular camera controller via the VECTOR CAN communication device VN1640A. MATLAB / Simulink performs communication node simulation of the multi-functional forward-looking monocular camera controller and models the communication interface with the VTD. Data interaction between the VTD and the multi-functional forward-looking monocular camera controller is achieved through the VECTOR CAN communication device VN1640A. The ECU-TEST automated test management module controls the operation and shutdown of MATLAB / Simulink, the operation and shutdown of VTD simulation, the switching of test case scenarios, and the generation of test reports through commands.
[0047] This invention enables HIL (High-Intensity Interval) video darkroom testing of multifunctional forward-looking monocular cameras using minimal hardware and simulation software. The testing equipment is low-cost, simple to set up, and automates the testing process. It is of great significance for verifying ADAS (Advanced Driver Assistance Systems) functions of multifunctional forward-looking monocular camera controllers, reducing testing time and lowering real-vehicle testing costs.
[0048] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of this invention.
Claims
1. A video anechoic chamber bench testing platform, characterized in that, include: Video darkroom module (100) is used to play VTD simulation images; The multi-functional forward-looking monocular camera controller (200) located in the video dark box module (100) is used to acquire vehicle information in the VTD simulation screen; Information processing unit (300) and simulation processing unit (400), wherein the information processing unit (300) is communicatively connected to the multi-functional forward-looking monocular camera controller (200); The information processing unit (300) is used to control the operation of the multi-functional forward-looking monocular camera controller (200) and the simulation processing unit (400), to receive vehicle information and transmit it to the simulation processing unit (400), and to receive test data from the simulation processing unit (400) and generate a report. The simulation processing unit (400) is used to generate, update and run VTD simulation screens based on vehicle information, and transmit the VTD simulation screens to the video dark box module (100) for playback, and generate test data based on the VTD simulation screens.
2. The video darkroom bench test platform according to claim 1, characterized in that, The video dark box module (100) includes a video dark box (101), a display screen (102) and a teleconverter (103). The teleconverter (103) is located between the display screen (102) and the multi-functional forward-looking monocular camera controller (200). The display screen (102) is connected to the simulation processing unit (400) via HDMI.
3. The video darkroom bench test platform according to claim 1, characterized in that, The multi-functional forward-looking monocular camera controller (200) is connected to the information processing unit (300) via CAN communication. The information processing unit (300) and the simulation processing unit (400) communicate via Ethernet.
4. The video darkroom bench test platform according to claim 1, characterized in that, The information processing unit (300) includes: an ECU-TEST automated test management module, a MATLAB / Simulink module, and a CANape communication module; The ECU-TEST automated test management module is used to control the start and stop of the multi-functional forward-looking monocular camera controller (200), the simulation processing unit (400), the MATLAB / Simulink module and the CANape communication module, to control the simulation processing unit (400) to switch VTD simulation scenarios, and to receive the test data of the simulation processing unit (400) and generate test evaluation and test report. The MATLAB / Simulink module is used to obtain simulation information from the simulation processing unit (400) and transmit it to the multi-functional forward-looking monocular camera controller (200), and to receive vehicle information from the multi-functional forward-looking monocular camera controller (200) and transmit it to the simulation processing unit (400). The CANape communication module is used to configure wake-up messages and transmit wake-up messages to the multi-function forward-looking monocular camera controller (200).
5. A video darkroom bench testing platform according to claim 4, characterized in that, The ECU-TEST automated test management module includes: The simulation control module is used to control the simulation processing unit (400) to switch simulation scenes; The control command sending module is used to control the start and stop of the multi-functional forward-looking monocular camera controller (200), the simulation processing unit (400), the MATLAB / Simulink module and the CANape communication module; The test report generation module is used to receive the test data from the simulation processing unit (400) and generate test evaluations and test reports.
6. A video darkroom bench test platform according to claim 5, characterized in that, The simulation control module configures test case scenarios according to the test case table and sets the simulation execution time and test evaluation indicators. The control command sending module sends VTD start and stop commands to the simulation processing unit (400) via the SSH protocol.
7. The video darkroom bench test platform according to claim 1, characterized in that, The simulation processing unit (400) includes a VTD module, which is used for: Run the VTD simulation screen; The system receives control commands sent by the information processing unit (300), and starts the simulation, configures the VTD interface, and ends the simulation according to the control commands.
8. The video darkroom bench test platform according to claim 1, characterized in that, The CAN communication device is a VECTOR VN1640A device; The information processing unit (300) is a Windows PC; The simulation processing unit (400) is an Ubuntu PC.
9. A video darkroom bench test method, based on the video darkroom bench test platform according to any one of claims 1 to 8, characterized in that, Includes the following steps: The information processing unit (300) controls the activation of the multi-functional forward-looking monocular camera controller (200) and the simulation processing unit (400); The simulation processing unit (400) generates a running VTD simulation screen and transmits the VTD simulation screen to the video dark box module (100) for playback; The vehicle information in the VTD simulation screen in the video dark box module (100) is obtained by the multi-functional forward-looking monocular camera controller (200) and transmitted to the information processing unit (300). The information processing unit (300) receives vehicle information and transmits it to the simulation processing unit (400). The simulation processing unit (400) generates, updates and runs the VTD simulation screen based on the vehicle information. After the simulation is completed, the simulation processing unit (400) sends the test data to the information processing unit (300), and the information processing unit (300) generates a report based on the test data.
10. A video darkroom bench test method according to claim 9, characterized in that, The video darkroom module (100) includes a display screen (102); In the step of acquiring vehicle information in the VTD simulation image in the video dark box module (100) through the multi-functional forward-looking monocular camera controller (200), the visual scene calibration between the multi-functional forward-looking monocular camera controller (200) and the display screen (102) is performed to ensure that the distance at which the multi-functional forward-looking monocular camera controller (200) identifies the target object is the same as the set distance.