Foresight camera interference method, device and system for assisting in vehicle expected function safety test

Abstract

The invention discloses a foresight camera interference method, device and system for assisting a vehicle expected function safety test, and the method comprises the steps: setting an interference light source to carry out the fault injection of interference adjustment of a to-be-tested foresight camera; during fault injection, detecting whether the function operation of the vehicle based on the front-view camera is abnormal or not; stopping the fault injection, detecting the running state of the vehicle, and if the function of stopping running due to the fault injection exists, reactivating the function of stopping running and detecting whether the function is abnormal or not; analyzing the detection result, and determining whether a fault or a defect exists in the function of the vehicle running state based on the operation of the front-view camera or not; in an actual road test, a scene that a vehicle is suddenly encountered with strong light in front of driving is simulated, and an interference device is automatically controlled through an upper computer, so that the functional performance and treatment measures of the strong light in front of the vehicle are judged, and whether the vehicle has potential safety hazards or not is judged; the method is simple, fast and easy to operate, has strong plasticity, can adapt to different vehicle type items, and improves the test efficiency and accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle function testing, and in particular to a front-view camera interference method, device and system for assisting in the safety testing of the intended functions of a vehicle. Background Art

[0002] Due to the diversity and reliability of the information output by visual sensors, many autonomous driving or driving assistance functions are realized through visual sensors. However, due to the working principle of the device, light conditions, rainfall, fog and ambient temperature have a great impact on the normal operation of the sensor. The expected functional safety focuses on the insufficient specification of the expected functions at the vehicle level or the performance limitations of the electronic and electrical system elements. The standard points out that bad weather, poor road conditions, and extreme behaviors of other traffic will cause corresponding risks to the vehicle. As the mainstream solution for intelligent driving of mass-produced vehicles, the front-view camera will also face corresponding bad weather during its actual operation. Traditional extreme working condition tests often use virtual simulation test methods, which often have corresponding errors due to problems such as model accuracy and computing power. Therefore, the research ideas of expected functional safety can be used to develop a set of fault injection test solutions for front-view cameras at the real vehicle level, thereby ensuring sufficient verification during the vehicle development process. Summary of the invention

[0003] The object of the present invention is to provide a forward-looking camera interference method, device and system for assisting vehicle intended functional safety testing, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a front-view camera interference method for assisting vehicle expected functional safety testing, comprising:

[0005] Setting the interference position of the interference light source relative to the front view camera to be tested and the interference light source intensity for fault injection for interference adjustment of the front view camera to be tested;

[0006] Fault injection under preset driving test conditions to detect whether the vehicle's front-view camera-based functions are operating abnormally;

[0007] Stop fault injection and detect the vehicle's driving status. If there is a function that has stopped running due to fault injection, reactivate the stopped function and detect whether it is abnormal.

[0008] If the function of the vehicle driving state based on the front view camera is not abnormal during the fault injection detection, then detect whether the function of the vehicle driving state based on the front view camera is abnormal after the fault injection is stopped;

[0009] The detection results are analyzed to determine whether there are any faults or defects in the vehicle's driving status based on the functions running on the front-view camera.

[0010] On the other hand, a forward-looking camera jammer for assisting in the safety test of the intended function of a vehicle is provided, comprising:

[0011] A setting module, used to set the interference position of the interference light source relative to the front view camera to be tested and the interference light source intensity, and used for fault injection for interference adjustment of the front view camera to be tested;

[0012] The first detection module is used to inject faults under preset driving test conditions to detect whether the function of the vehicle based on the front-view camera is abnormal;

[0013] The second detection module is used to stop the fault injection, detect the driving state of the vehicle, and if there is a function that stops running due to the fault injection, reactivate the stopped function and detect whether it is abnormal;

[0014] A third detection module is used to detect whether the function of the vehicle driving state based on the front view camera running after stopping the fault injection is abnormal if there is no abnormality in the function of the vehicle driving state based on the front view camera running during the fault injection process;

[0015] The analysis module is used to analyze the detection results to determine whether there is a fault or defect in the function of the vehicle driving state based on the front-view camera.

[0016] In another aspect, a forward-looking camera interference system for assisting in the safety test of the intended function of a vehicle is provided, comprising:

[0017] A host computer, wherein the host computer is equipped with a front-view camera jamming application for assisting the vehicle's expected functional safety test, and the front-view camera jamming application sends control signals and receives detection information through the host computer;

[0018] Controller, the controller is connected with the host computer;

[0019] A driving mechanism connected to the controller;

[0020] A disturbance light source device, the disturbance light source device is connected to the driving mechanism, and the disturbance light source device is used to generate a disturbance light source;

[0021] A light source adjustment device, the light source adjustment device is connected to the host computer and the disturbance light source device respectively, and the light source adjustment device is used to adjust the intensity of the disturbance light source generated by the disturbance light source device;

[0022] The signal acquisition device is connected to the host computer and the front camera controller respectively, and is used to collect the position of the disturbance light source device and the intensity of the disturbance light source, as well as the expected function information of the vehicle, and send the collected data to the host computer.

[0023] Furthermore, it also includes:

[0024] Display module, the front-view camera includes a display module, and the display position of the disturbance light source device is obtained through the display interface of the display module;

[0025] The calibration module calibrates the display position of the disturbance light source device injected into the disturbance light source on the display interface of the display module, moves the disturbance light source device to the display position where the calibration disturbance light source device injects the disturbance light source through the driving mechanism, and obtains the position information of the actuator corresponding to each display position.

[0026] Furthermore, it also includes:

[0027] A bracket, the bracket is arranged on the vehicle;

[0028] The guide rail is connected to the bracket, and the driving mechanism can control the disturbance light source device to move along the guide rail to the display position where the disturbance light source device is calibrated to inject the disturbance light source.

[0029] Furthermore, the controller and the actuator are respectively connected to the vehicle battery, and the vehicle battery is used to power the controller and the actuator.

[0030] In another aspect, a method for testing a front-view camera jammer system for use in an application-assisted vehicle intended functional safety test is provided, comprising:

[0031] Move the disturbance light source device, obtain the display position, record the position information of the motor actuator when the disturbance light source device is in the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface in sequence, and set the position of the motor actuator as the disturbance position of the fault injection;

[0032] Activate the corresponding function of the front camera and make sure it works normally;

[0033] The host computer sends a driving signal to the controller, the controller generates a driving command according to the signal sent by the host computer, and the driving mechanism moves the disturbance light source device along the guide rail to the disturbance position of the fault injection according to the driving command;

[0034] The host computer sends a control signal to the light source adjustment device, the light source adjustment device generates an adjustment command according to the control signal, and the light source adjustment device adjusts the disturbance light source intensity of the disturbance light source device according to the adjustment command;

[0035] Under the preset driving test conditions, the disturbance light source device is moved to the preset disturbance position and a fault is injected;

[0036] The signal acquisition device sends the expected function information of the vehicle during the fault injection period to the host computer through the front camera controller;

[0037] The host computer detects whether the vehicle's front-view camera-based function is operating abnormally;

[0038] Stop fault injection, and the host computer detects the driving status of the vehicle. If there is a function that stops running due to fault injection, reactivate the stopped function and detect whether it is abnormal;

[0039] If the function of the vehicle driving state based on the front view camera is not abnormal during the fault injection detection, then detect whether the function of the vehicle driving state based on the front view camera is abnormal after the fault injection is stopped;

[0040] The detection results are analyzed to determine whether there are any faults or defects in the vehicle's driving status based on the functions running on the front-view camera.

[0041] Furthermore, the preset driving test conditions also include:

[0042] The vehicle was driven on a closed road at night.

[0043] The vehicle is set to adaptive cruise control and the cruising speed is set;

[0044] Set the target vehicle ahead when the vehicle is adaptive cruising.

[0045] In another aspect, an electronic device is provided, the electronic device comprising:

[0046] one or more processors;

[0047] a storage device for storing one or more programs,

[0048] When the one or more programs are executed by the one or more processors, the one or more processors implement a forward-looking camera interference method for assisting vehicle intended functional safety testing as described.

[0049] On the other hand, a computer-readable storage medium is provided, on which a computer program is stored, characterized in that when the program is executed by a processor, a forward-looking camera interference method for assisting the vehicle's intended functional safety test as described is implemented.

[0050] Compared with the prior art, the beneficial effects of the present invention are as follows: the purpose of the invention is to provide an automated forward-looking camera interference device for safety testing of the intended functions of a driving assistance vehicle; in actual road testing, a scenario in which a vehicle suddenly encounters strong light in front of it is simulated (such as driving against the sun, oncoming vehicles using high beams), and the light intensity and interference position of the interference source within the camera detection range are set through the camera interference device, and the interference device is automatically controlled through the host computer instructions, so as to judge the functional performance and disposal measures of strong light appearing in front during the activation of the vehicle's driving assistance function, and judge whether the vehicle has safety hazards; the operation is simple, fast and easy to use, with strong plasticity, and can be adapted to different vehicle models and projects, thereby improving test efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A flow chart of a front-view camera interference method for assisting in the safety test of the expected function of a vehicle in an embodiment of the present invention;

[0052] Figure 2 A schematic diagram of a front-view camera jammer for assisting in the safety test of the intended function of a vehicle according to an embodiment of the present invention;

[0053] Figure 3 A schematic diagram of a front-view camera jammer system for assisting in the safety test of the intended function of a vehicle according to an embodiment of the present invention;

[0054] Figure 4 A flow chart of a testing method of a front-view camera interference system for assisting in the safety testing of the expected functions of a vehicle according to an embodiment of the present invention;

[0055] Figure 5 A schematic diagram of the connection structure of an electronic device and a computer-readable storage medium in an embodiment of the present invention;

[0056] In the figure: 10, memory; 11, processor; 12, communication bus; 13, communication interface; 14, computer program; 15, storage medium; 16, setting module; 17, first detection module; 18, second detection module; 19, third detection module; 20, analysis module; 21, host computer; 22, controller; 23, driving mechanism; 24, disturbance light source device; 25, light source adjustment device; 26, signal acquisition device. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Please refer to the attached drawings of the specification, the present invention provides a technical solution: Figure 1 As shown, a front-view camera interference method for assisting vehicle expected functional safety testing includes the following steps:

[0061] S102, setting an interference position of an interference light source relative to the front view camera to be tested and an interference light source intensity, for fault injection for interference adjustment of the front view camera to be tested;

[0062] Among them, the present invention prefers that the interference light source is an LED light source. Taking into account the differences in the layout positions of front cameras of different vehicle models, the interference light source is configured according to the assembly position of the front camera of the actual vehicle, that is, the adjustment range of the LED light source; the LED light source is continuously moved, and the display position of the LED light source is observed through the internal data interface of the front camera, and the position information of the motor actuator is recorded when the LED light source is in the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface respectively; and by adjusting the intensity of the LED light source, interference adjustment fault injection is performed on the front camera to be tested.

[0063] S104, injecting faults under preset driving test conditions to detect whether the function of the vehicle based on the front-view camera is abnormal;

[0064] During fault injection, taking the vehicle's ACC (adaptive cruise control) function as an example, when the vehicle is following the vehicle in front normally, fault injection is achieved through one-click on the host computer. The motor actuator and LED light source module are controlled by scripts to control the intensity and position of the disturbance light source, illuminating the vehicle's front camera. The observed vehicle should stably identify the target in front or immediately exit the corresponding function to ensure the driver's safety. If the vehicle interrupts the recognition of the target in front at this time and accelerates at a speed of 80km / h, the test is terminated due to the risk of collision with the target vehicle directly in front.

[0065] S106, stop the fault injection, detect the driving state of the vehicle, and if there is a function that stops running due to the fault injection, reactivate the stopped function and detect whether it is abnormal;

[0066] Among them, end the fault injection, turn off the disturbance light source, observe the vehicle's driving status, and if the function exits due to a fault during the fault injection period, try to activate the function again to check whether the function is normal.

[0067] S108, if the function of the vehicle driving state based on the front view camera running during the fault injection process is detected to be normal, then detecting whether the function of the vehicle driving state based on the front view camera running after the fault injection is stopped is abnormal;

[0068] If the vehicle under test maintains normal operation during the fault injection period, observe whether there are other abnormalities in the vehicle status after the fault injection is completed;

[0069] S110: Analyze the detection results to determine whether there is a fault or defect in the function of the vehicle driving state based on the front-view camera.

[0070] During the entire test process, the bus data of the vehicle under test is collected through the CAN signal acquisition module and stored synchronously with the fault injection information in the host computer for subsequent problem analysis.

[0071] The positive effect of the method in this embodiment is to accurately control the position and brightness of the external interference light source of the front camera to verify whether the handling strategy of the actual vehicle driving assistance system for such faults meets the requirements under external strong light conditions, thereby improving the test accuracy and coverage.

[0072] On the other hand, a forward-looking camera jammer for assisting in the safety test of the intended function of a vehicle is provided, comprising:

[0073] A setting module 16, used to set the interference position of the interference light source relative to the front view camera to be tested and the interference light source intensity, for fault injection for interference adjustment of the front view camera to be tested;

[0074] It can be understood that the preferred interference light source of the present invention is an LED light source. Taking into account the differences in the layout positions of front cameras of different vehicle models, the interference light source is configured according to the assembly position of the front camera of the actual vehicle, that is, the adjustment range of the LED light source; the LED light source is continuously moved, and the display position of the LED light source is observed through the internal data interface of the front camera, and the position information of the motor actuator is recorded when the LED light source is in the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface respectively; and by adjusting the intensity of the LED light source, interference adjustment fault injection is performed on the front camera to be tested.

[0075] The first detection module 17 is used to inject faults under a preset driving test road condition to detect whether the function of the vehicle based on the front-view camera is abnormal;

[0076] It can be understood that during fault injection, taking the vehicle's ACC (adaptive cruise control) function as an example, when the vehicle is following the vehicle in front normally, fault injection is achieved through one-click on the host computer. The motor actuator and LED light source module are controlled by scripts to control the intensity and position of the disturbance light source, illuminating the vehicle's front camera. The observed vehicle should stably identify the target in front or immediately exit the corresponding function to ensure the driver's safety. If the vehicle interrupts the recognition of the target in front at this time and accelerates at a speed of 80km / h, the test is terminated due to the risk of collision with the target vehicle directly in front.

[0077] The second detection module 18 is used to stop the fault injection, detect the driving state of the vehicle, and if there is a function that stops running due to the fault injection, reactivate the stopped function and detect whether it is abnormal;

[0078] It is understandable that after the fault injection is ended, the disturbance light source is turned off, and the vehicle driving status is observed, if the function is exited due to a fault during the fault injection, try to activate the function again to see if the function is normal.

[0079] The third detection module 19 is used to detect whether the function of the vehicle driving state based on the front view camera running is abnormal after stopping the fault injection if there is no abnormality in the function of the vehicle driving state based on the front view camera running during the fault injection process;

[0080] It is understandable that if the vehicle under test maintains normal operation during the fault injection period, it is necessary to observe whether there are other abnormalities in the vehicle status after the fault injection is completed.

[0081] The analysis module 20 is used to analyze the detection results to determine whether there is a fault or defect in the function of the vehicle driving state based on the front-view camera.

[0082] It can be understood that during the entire test process, the bus data of the vehicle under test is collected through the CAN signal acquisition module and stored synchronously with the fault injection information in the host computer for subsequent problem analysis.

[0083] In another aspect, a forward-looking camera interference system for assisting in the safety test of the intended function of a vehicle is provided, comprising:

[0084] A host computer 21, the host computer is equipped with a front-view camera interference application for assisting the vehicle's expected functional safety test, and the front-view camera interference application sends control signals and receives detection information through the host computer;

[0085] Controller 22, the controller is connected to the host computer;

[0086] A driving mechanism 23, the driving mechanism is connected to the controller;

[0087] A disturbance light source device 24, the disturbance light source device is connected to the driving mechanism, and the disturbance light source device is used to generate a disturbance light source;

[0088] A light source adjustment device 25, which is connected to the host computer and the disturbance light source device respectively, and is used to adjust the intensity of the disturbance light source generated by the disturbance light source device;

[0089] The signal acquisition device 26 is connected to the host computer and the front camera controller 27 respectively, and is used to collect the position of the disturbance light source device and the intensity of the disturbance light source, as well as the expected function information of the vehicle, and send the collected data to the host computer.

[0090] In the above embodiment, the test system hardware is composed of a driving mechanism, a disturbance light source device, a light source adjustment device, a controller, a host computer, a signal acquisition device, a bracket and a guide rail. The software system is controlled by a CAN signal protocol, and the position and brightness of the disturbance light source are controlled by the host computer, wherein the position of the disturbance light source device is adjusted by the driving mechanism, and the fault triggering and testing of the vehicle's front camera are realized. The bus data before and after the fault triggering is synchronously recorded by the host computer, and the test results are read and saved in real time.

[0091] Optionally, it also includes:

[0092] Display module: the front-view camera 28 includes a display module, and the display position of the disturbance light source device is obtained through the display interface of the display module;

[0093] The calibration module calibrates the display position of the disturbance light source device injected into the disturbance light source on the display interface of the display module, moves the disturbance light source device to the display position where the calibration disturbance light source device injects the disturbance light source through the driving mechanism, and obtains the position information of the actuator corresponding to each display position.

[0094] After the equipment is connected, the interference device is configured according to the assembly position of the front camera of the actual vehicle, that is, the adjustment range of the LED light source. The LED light source is continuously moved, and the display position of the LED light source is observed through the internal data interface of the front camera. The position information of the motor actuator is recorded when the LED light source is in the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface.

[0095] Optionally include:

[0096] A bracket, the bracket is arranged on the vehicle;

[0097] The guide rail is connected to the bracket, and the driving mechanism can control the disturbance light source device to move along the guide rail to the display position where the disturbance light source device is calibrated to inject the disturbance light source.

[0098] Optionally, the controller and the actuator are respectively connected to a vehicle battery, and the vehicle battery is used to power the controller and the actuator.

[0099] In another aspect, a method for testing a front-view camera jammer system for use in an application-assisted vehicle intended functional safety test is provided, comprising the following steps:

[0100] S202, moving the disturbance light source device, obtaining the display position, recording the position information of the motor actuator when the disturbance light source device is located at the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface in sequence, and setting the position of the motor actuator as the disturbance position of the fault injection;

[0101] After the equipment is connected, the interference device is configured according to the assembly position of the front camera of the real vehicle, that is, the adjustment range of the LED light source. The LED light source is continuously moved, and the display position of the LED light source is observed through the internal data interface of the front camera, and the position information of the motor actuator is recorded when the LED light source is in the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface.

[0102] S204, activating the corresponding function of the front camera and confirming that the corresponding function works normally;

[0103] Before fault injection, the corresponding function of the front camera is activated to check whether the function is working normally. Taking the vehicle ACC (adaptive cruise control) function as an example, the vehicle is driving on a closed road in the test environment at night. The vehicle is set to a cruising speed of 80km / h. There is a target vehicle directly in front of the vehicle. The actual speed of the target vehicle is 50km / h. The vehicle under test recognizes the target in front through the front camera and follows the front vehicle at 50km / h. At this time, it is confirmed that the camera has no faults.

[0104] S206, the host computer sends a driving signal to the controller, the controller generates a driving command according to the signal sent by the host computer, and the driving mechanism moves the disturbance light source device along the guide rail to the disturbance position of the fault injection according to the driving command;

[0105] S208, the host computer sends a control signal to the light source adjustment device, the light source adjustment device generates an adjustment command according to the control signal, and the light source adjustment device adjusts the disturbance light source intensity of the disturbance light source device according to the adjustment command;

[0106] S210, under a preset driving test condition, moving the disturbance light source device to a preset disturbance position, and injecting a fault;

[0107] S212, the signal acquisition device sends the expected function information of the vehicle during the fault injection period to the host computer through the front camera controller;

[0108] S214, the host computer detects whether the function of the vehicle based on the front view camera is abnormal;

[0109] Among them, in the fault injection, taking the vehicle ACC (adaptive cruise control) function as an example, when the vehicle is following the front vehicle normally, the fault injection is realized by one key of the host computer, and the motor actuator and LED light source module are controlled by the script to control the intensity and position of the disturbance light source, illuminating the front camera of the vehicle, and observing that the vehicle should stably identify the target in front or immediately exit the corresponding function to ensure the safety of the driver. If the vehicle interrupts the recognition of the target in front at this time and accelerates at a speed of 80km / h, the test is terminated due to the risk of collision with the target vehicle in front.

[0110] S216, stop the fault injection, the upper computer detects the driving state of the vehicle, and if there is a function that stops running due to the fault injection, reactivate the stopped function and detect whether it is abnormal;

[0111] After the fault injection, end the fault injection, turn off the disturbance light source, and observe the vehicle driving status. If the function exits due to a fault during the fault injection, try to activate the function again to check whether the function is normal.

[0112] S218, if the function of the vehicle driving state based on the front view camera is not abnormal during the fault injection process, then detecting whether the function of the vehicle driving state based on the front view camera is abnormal after the fault injection is stopped;

[0113] Among them, if the vehicle under test maintains normal operation during the fault injection period, then observe whether there are other abnormalities in the vehicle status after the fault injection is completed.

[0114] S220: Analyze the detection results to determine whether there is a fault or defect in the function of the vehicle driving state based on the front-view camera.

[0115] During the entire test process, the bus data of the vehicle under test is collected through the CAN signal acquisition module and stored synchronously with the fault injection information in the host computer for subsequent problem analysis.

[0116] Optionally, the preset driving test conditions also include:

[0117] The vehicle was driven on a closed road at night.

[0118] The vehicle is set to adaptive cruise control and the cruising speed is set;

[0119] Set the target vehicle ahead when the vehicle is adaptive cruising.

[0120] On the other hand, Figure 5 As shown, an electronic device is provided, the electronic device comprising:

[0121] One or more processors 11;

[0122] a storage device for storing one or more programs,

[0123] When the one or more programs are executed by the one or more processors 11, the one or more processors 11 implement a forward-looking camera interference method for assisting vehicle intended functional safety testing as described in any of the above.

[0124] Specifically, the storage device is a memory 10, a processor (CPU) 11 and a computer program 14, the computer program 14 is stored in the memory 10, and the processor 11 executes the computer program 14 to implement any of the above-mentioned front-view camera interference methods for assisting the expected functional safety test of the vehicle. The control system also includes: a communication interface 13 and a communication bus 12, and the processor 11, the communication interface 13, and the memory 10 communicate through the communication bus 12, wherein the communication bus 12 is an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc., and if the memory 10, the processor 11, and the communication interface 13 are integrated on a chip, the memory 10, the processor 11, and the communication interface 13 can communicate with each other through an internal interface.

[0125] The processor 11 may also be a specific integrated circuit or multiple integrated circuits.

[0126] On the other hand, Figure 5 As shown, a computer-readable storage medium 15 is provided, on which a computer program 14 is stored. When the program is executed by a processor 11, a forward-looking camera interference method for assisting the vehicle's intended functional safety test as described above is implemented.

[0127] Specifically, the computer program 14 may include a program code, which includes a computer operation instruction; a memory 10, which is used to store the computer program 14. The memory 10 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory; a communication interface 13, which is used to communicate with other devices such as a client or other servers.

[0128] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A front-view camera interference method for assisting vehicle expected functional safety testing, characterized in that: include: Setting the interference position of the interference light source relative to the front view camera to be tested and the interference light source intensity for fault injection for interference adjustment of the front view camera to be tested; Fault injection under preset driving test conditions to detect whether the vehicle's front-view camera-based functions are operating abnormally; Stop fault injection and detect the vehicle's driving status. If there is a function that has stopped running due to fault injection, reactivate the stopped function and detect whether it is abnormal. If the function of the vehicle driving state based on the front view camera is not abnormal during the fault injection detection, then detect whether the function of the vehicle driving state based on the front view camera is abnormal after the fault injection is stopped; The detection results are analyzed to determine whether there are any faults or defects in the vehicle's driving status based on the functions running on the front-view camera.

2. A forward-looking camera jammer for assisting vehicle intended functional safety testing, characterized in that: include: A setting module, used to set the interference position of the interference light source relative to the front view camera to be tested and the interference light source intensity, and used for fault injection for interference adjustment of the front view camera to be tested; The first detection module is used to inject faults under preset driving test conditions to detect whether the function of the vehicle based on the front-view camera is abnormal; The second detection module is used to stop the fault injection, detect the driving state of the vehicle, and if there is a function that stops running due to the fault injection, reactivate the stopped function and detect whether it is abnormal; A third detection module is used to detect whether the function of the vehicle driving state based on the front view camera running after stopping the fault injection is abnormal if there is no abnormality in the function of the vehicle driving state based on the front view camera running during the fault injection process; The analysis module is used to analyze the detection results to determine whether there is a fault or defect in the function of the vehicle driving state based on the front-view camera.

3. A front-view camera jammer system for assisting vehicle intended functional safety testing, characterized in that: include: A host computer, wherein the host computer is equipped with a front-view camera jamming application for assisting the vehicle's expected functional safety test, and the front-view camera jamming application sends control signals and receives detection information through the host computer; Controller, the controller is connected with the host computer; A driving mechanism connected to the controller; A disturbance light source device, the disturbance light source device is connected to the driving mechanism, and the disturbance light source device is used to generate a disturbance light source; A light source adjustment device, the light source adjustment device is connected to the host computer and the disturbance light source device respectively, and the light source adjustment device is used to adjust the intensity of the disturbance light source generated by the disturbance light source device; The signal acquisition device is connected to the host computer and the front camera controller respectively, and is used to collect the position of the disturbance light source device and the intensity of the disturbance light source, as well as the expected function information of the vehicle, and send the collected data to the host computer.

4. A front-view camera jamming system for assisting vehicle intended functional safety testing according to claim 3, characterized in that: Also includes: Display module, the front-view camera includes a display module, and the display position of the disturbance light source device is obtained through the display interface of the display module; The calibration module calibrates the display position of the disturbance light source device injected into the disturbance light source on the display interface of the display module, moves the disturbance light source device to the display position where the calibration disturbance light source device injects the disturbance light source through the driving mechanism, and obtains the position information of the actuator corresponding to each display position.

5. A front-view camera jamming system for assisting vehicle intended functional safety testing according to claim 4, characterized in that: include: A bracket, the bracket is arranged on the vehicle; The guide rail is connected to the bracket, and the driving mechanism can control the disturbance light source device to move along the guide rail to the display position where the disturbance light source device is calibrated to inject the disturbance light source.

6. A front-view camera jamming system for assisting vehicle intended functional safety testing according to claim 4, characterized in that: include: The controller and the actuator are respectively connected to the vehicle battery, and the vehicle battery is used to power the controller and the actuator.

7. A method for testing a front-view camera jammer system for assisting vehicle expected functional safety testing, characterized in that: include: Move the disturbance light source device, obtain the display position, record the position information of the motor actuator when the disturbance light source device is in the upper left corner, lower left corner, upper right corner, and lower right corner of the display interface in sequence, and set the position of the motor actuator as the disturbance position of the fault injection; Activate the corresponding function of the front camera and make sure it works normally; The host computer sends a driving signal to the controller, the controller generates a driving command according to the signal sent by the host computer, and the driving mechanism moves the disturbance light source device along the guide rail to the disturbance position of the fault injection according to the driving command; The host computer sends a control signal to the light source adjustment device, the light source adjustment device generates an adjustment command according to the control signal, and the light source adjustment device adjusts the disturbance light source intensity of the disturbance light source device according to the adjustment command; Under the preset driving test conditions, the disturbance light source device is moved to the preset disturbance position and a fault is injected; The signal acquisition device sends the expected function information of the vehicle during the fault injection period to the host computer through the front camera controller; The host computer detects whether the vehicle's front-view camera-based function is operating abnormally; Stop fault injection, and the host computer detects the driving status of the vehicle. If there is a function that stops running due to fault injection, reactivate the stopped function and detect whether it is abnormal; If the function of the vehicle driving state based on the front view camera is not abnormal during the fault injection detection, then detect whether the function of the vehicle driving state based on the front view camera is abnormal after the fault injection is stopped; The detection results are analyzed to determine whether there are any faults or defects in the vehicle's driving status based on the functions running on the front-view camera.

8. The method for testing a front-view camera jammer system for assisting in the safety test of the intended function of a vehicle according to claim 7, characterized in that: The preset driving test conditions also include: The vehicle was driven on a closed road at night. The vehicle is set to adaptive cruise control and the cruising speed is set; Set the target vehicle ahead when the vehicle is adaptive cruising.

9. An electronic device, characterized in that: The electronic device comprises: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement a forward-looking camera interference method for assisting vehicle intended functional safety testing as described in claim 1.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, a forward-looking camera interference method for assisting vehicle intended functional safety testing as described in claim 1 is implemented.

Images