A site intelligent construction method and system for vehicle driving test

Abstract

The application provides a site intelligent construction method and system for vehicle driving test. First, a to-be-decoupled composite device involved in to-be-constructed concurrent test task execution is acquired, then a conflict factor matrix corresponding to the to-be-decoupled composite device is acquired based on interference types of mutual interference between function modules, finally, a conflict factor whose non-diagonal element is greater than a preset threshold under the interference type is acquired, and the function modules used by the two test tasks corresponding to the conflict factor are reconstructed, virtual-real bidirectional mapping is performed based on parameters of the reconstructed function modules, and a driving test digital twin system corresponding to a site required by the to-be-constructed concurrent test task is constructed. Through reconstruction of the mutually interfering function modules in the composite device involved in the concurrent test task, the scheme can ensure the efficiency of vehicle test and the accuracy of test data.

Description

Technical Field

[0001] This application relates to the field of concurrent test task processing in vehicle driving tests, specifically to a method and system for intelligent site construction for vehicle driving tests. Background Technology

[0002] Vehicle driving test tracks are core infrastructure for verifying the functionality, performance, and safety of intelligent driving systems, and their development is closely related to the progress of automotive intelligence. As intelligent driving technology evolves from Level 2 assisted driving to Level 4 / 5 fully autonomous driving, test tracks are upgrading from traditional single-function testing platforms to complex systems supporting multi-scenario fusion and high-concurrency testing. Their core functions include simulating real-world road environments (such as urban roads, highways, and extreme weather scenarios) to provide controllable testing conditions for intelligent driving systems, verifying the reliability of basic functions such as Automatic Emergency Braking (AEB) and Adaptive Cruise Control (ACC), and covering long-tail scenarios (such as unexpected pedestrians or irregularly shaped obstacles) and edge cases (such as sensor failure or communication interruption).

[0003] Currently, vehicle driving tests are mainly conducted through two methods: real-vehicle testing and virtual simulation testing. The application of digital twin technology makes a combined real-virtual testing method possible, enabling a more comprehensive evaluation of vehicle performance. The application of digital twin technology relies on the intelligent connected vehicle testing area of ​​the test site. In this area, multi-functional composite equipment achieves space efficiency through hardware integration. For example, a gantry integrating traffic lights, V2X communication modules, and millimeter-wave radar meets the requirements for high precision and compactness of testing equipment. This type of equipment physically concentrates different functional modules (such as communication, sensing, and control units), reducing the area occupied on the testing site.

[0004] However, hardware integration also raises a series of resource conflict issues, mainly mutual interference between different functional modules in multifunctional composite equipment, including radio frequency interference, optical interference, and acoustic interference. This interference can affect data accuracy and even force concurrent tasks to be executed serially, significantly impacting testing efficiency and reliability. Therefore, a solution is urgently needed when constructing vehicle testing grounds to eliminate the impact of these interferences on vehicle testing. Summary of the Invention

[0005] This application provides a method and system for intelligent site construction for vehicle driving tests, which solves the problem of mutual interference between different functional modules in multifunctional composite equipment in the prior art, including radio frequency interference, optical interference and acoustic interference. These interferences can affect the accuracy of data and even cause concurrent tasks to be executed serially, which greatly affects the efficiency and reliability of testing.

[0006] On the one hand, embodiments of this application provide a method for intelligent site construction for vehicle driving tests, including:

[0007] Obtain the decoupled composite device involved in the execution of the concurrent test task to be built, wherein the concurrent test task to be built includes at least two concurrent test tasks, and the decoupled composite device is a composite device in which the functional modules of the decoupled composite device used by each test task interfere with each other when the at least two test tasks are executed.

[0008] For any composite device to be decoupled, based on the interference type of mutual interference between functional modules, the conflict factor matrix corresponding to the composite device to be decoupled is obtained. The interference type includes radio frequency interference, optical interference and acoustic interference. Each element in the conflict factor matrix is ​​the conflict factor between the two functional modules used by the two corresponding test tasks. The conflict factor represents the magnitude of the interference between the two functional modules used by the two corresponding test tasks.

[0009] Obtain conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and reconstruct the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, perform virtual-real bidirectional mapping to construct a driving test digital twin system corresponding to the site required for the concurrent test task to be constructed.

[0010] In one optional embodiment of this application, obtaining the decoupled composite device involved in the execution of the concurrent test task to be built includes:

[0011] Obtain the first composite device involved in each test task in the concurrent test task to be constructed;

[0012] The composite device used by at least two test tasks in the first composite device is identified as the second composite device;

[0013] Composite devices in the second composite device group whose at least two functional modules used by the tested task interfere with each other are considered as composite devices to be decoupled.

[0014] In one optional embodiment of this application, if the interference type is radio frequency interference, obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes:

[0015] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0016] Obtain the interference power density of the first functional module to the second functional module, obtain the system tolerance power of the second functional module, and obtain the corresponding spatial interference item based on the interference power density and the system tolerance power;

[0017] Obtain the time decay term corresponding to the temperature rise accumulation caused by the continuous operation of the second functional module device;

[0018] The spatial interference term and the time decay term are coupled to obtain the corresponding conflict factor;

[0019] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained. The diagonal elements in the conflict factor matrix only represent the time decay of the functional module used by the corresponding test task.

[0020] In one optional embodiment of this application, if the interference type is optical interference, obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes:

[0021] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0022] The interference light intensity emitted by the first functional module and the sensor light intensity saturation threshold of the second functional module are obtained, and the ratio between the interference light intensity and the light intensity saturation threshold is obtained.

[0023] Obtain the spectral overlap factor between the first functional module and the second functional module, and couple the ratio and the spectral overlap factor to obtain the corresponding conflict factor;

[0024] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0025] In one optional embodiment of this application, if the interference type is acoustic interference, obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes:

[0026] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0027] Obtain the sound pressure level and background noise threshold of the first functional module, and obtain the corresponding conflict factor based on the sound pressure level and the background noise threshold;

[0028] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0029] In one optional embodiment of this application, the step of obtaining conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and reconstructing the functional modules used by the two test tasks corresponding to the conflict factors, includes:

[0030] Step A: Obtain the maximum conflict factor among the conflict factors that are greater than the preset threshold, and reconstruct the interference sources in the two functional modules corresponding to the maximum conflict factor. Then, based on the reconstructed functional modules and victim units, obtain the reconstructed conflict factors and update the conflict factor matrix using the reconstructed conflict factors.

[0031] Step B: Repeat step A until all conflict factors in the conflict factor matrix are no greater than the preset threshold.

[0032] In one optional embodiment of this application, the reconstruction of the interference sources in the two functional modules corresponding to the maximum conflict factor includes:

[0033] If the interference type is radio frequency interference, then the function module acting as the interference source is disabled and the alternative function module is activated.

[0034] Secondly, embodiments of this application provide a site intelligent construction system for vehicle driving tests, comprising:

[0035] The module for acquiring decoupled composite devices is used to acquire the decoupled composite devices involved in the execution of the concurrent test task to be built. The concurrent test task to be built includes at least two concurrent test tasks. The decoupled composite devices are composite devices in which the functional modules of the decoupled composite devices used by each test task interfere with each other when the at least two test tasks are executed.

[0036] The conflict factor matrix acquisition module is used to acquire the conflict factor matrix corresponding to any composite device to be decoupled based on the interference type between the functional modules. The interference type includes radio frequency interference, optical interference and acoustic interference. Each element in the conflict factor matrix is ​​the conflict factor between the two functional modules used by the corresponding two test tasks. The conflict factor represents the magnitude of the interference between the two functional modules used by the corresponding two test tasks.

[0037] The test site construction module is used to obtain conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and to reconstruct the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, a virtual-real bidirectional mapping is performed to construct a driving test digital twin system corresponding to the test site required by the concurrent test task to be constructed.

[0038] In one optional embodiment of this application, the module for acquiring the decoupled composite device is specifically used for:

[0039] Obtain the first composite device involved in each test task in the concurrent test task to be constructed;

[0040] The composite device used by at least two test tasks in the first composite device is identified as the second composite device;

[0041] Composite devices in the second composite device group whose at least two functional modules used by the tested task interfere with each other are considered as composite devices to be decoupled.

[0042] In one optional embodiment of this application, if the interference type is radio frequency interference, the conflict factor matrix acquisition module is specifically used for:

[0043] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0044] Obtain the interference power density of the first functional module to the second functional module, obtain the system tolerance power of the second functional module, and obtain the corresponding spatial interference item based on the interference power density and the system tolerance power;

[0045] Obtain the time decay term corresponding to the temperature rise accumulation caused by the continuous operation of the second functional module device;

[0046] The spatial interference term and the time decay term are coupled to obtain the corresponding conflict factor;

[0047] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained. The diagonal elements in the conflict factor matrix only represent the time decay of the functional module used by the corresponding test task.

[0048] In one optional embodiment of this application, if the interference type is optical interference, the conflict factor matrix acquisition module is specifically used for:

[0049] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0050] The interference light intensity emitted by the first functional module and the sensor light intensity saturation threshold of the second functional module are obtained, and the ratio between the interference light intensity and the light intensity saturation threshold is obtained.

[0051] Obtain the spectral overlap factor between the first functional module and the second functional module, and couple the ratio and the spectral overlap factor to obtain the corresponding conflict factor;

[0052] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0053] In one optional embodiment of this application, if the interference type is acoustic interference, the conflict factor matrix acquisition module is specifically used for:

[0054] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0055] Obtain the sound pressure level and background noise threshold of the first functional module, and obtain the corresponding conflict factor based on the sound pressure level and the background noise threshold;

[0056] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0057] In one optional embodiment of this application, the test site construction module is specifically used for:

[0058] Step A: Obtain the maximum conflict factor among the conflict factors that are greater than the preset threshold, and reconstruct the interference sources in the two functional modules corresponding to the maximum conflict factor. Then, based on the reconstructed functional modules and victim units, obtain the reconstructed conflict factors and update the conflict factor matrix using the reconstructed conflict factors.

[0059] Step B: Repeat step A until all conflict factors in the conflict factor matrix are no greater than the preset threshold.

[0060] In an optional embodiment of this application, the test site construction module is further configured to:

[0061] If the interference type is radio frequency interference, then the function module acting as the interference source is disabled and the alternative function module is activated.

[0062] Thirdly, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement any of the above-described intelligent site construction methods for vehicle driving tests.

[0063] Fourthly, this application also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements any of the above-described intelligent site construction methods for vehicle driving tests.

[0064] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements any of the above-described intelligent site construction methods for vehicle driving tests.

[0065] The proposed solution first obtains the decoupled composite devices involved in the execution of the concurrent test task. Then, for any decoupled composite device, based on the interference type between functional modules, it obtains the corresponding conflict factor matrix. Finally, it obtains the conflict factors whose off-diagonal elements are greater than a preset threshold under the interference type, and reconstructs the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, it performs a virtual-real bidirectional mapping to construct a driving test digital twin system corresponding to the site required for the concurrent test task. This solution achieves dynamic decoupling by reconstructing the mutually interfering functional modules in the composite devices involved in the concurrent test task, eliminating the influence of radio frequency interference, optical interference, and acoustic interference on the test. Finally, it constructs a driving test digital twin system corresponding to the site required for vehicle testing based on the dynamically decoupled functional modules, ensuring the efficiency of vehicle testing and the accuracy of test data. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 A flowchart illustrating a method for intelligent site construction for vehicle driving tests provided in this application;

[0068] Figure 2 A structural block diagram of a site intelligent construction system for vehicle driving tests provided in this application;

[0069] Figure 3 A schematic diagram of the structure of the electronic device provided in this application. Detailed Implementation

[0070] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0071] Figure 1 This application provides a flowchart illustrating a method for intelligent site construction for vehicle driving tests, as shown in the embodiments below. Figure 1 As shown, the method may include:

[0072] Step S101: Obtain the decoupled composite device involved in the execution of the concurrent test task to be built, wherein the concurrent test task to be built includes at least two concurrent test tasks, and the decoupled composite device is a composite device in which the functional modules of the decoupled composite device used by each test task interfere with each other when the at least two test tasks are executed.

[0073] Specifically, the concurrent test tasks to be constructed can be multiple vehicle driving test tasks that need to be performed simultaneously, such as: AEB test tasks, vehicle-to-infrastructure (V2I) test tasks, vehicle driving noise test tasks, and ranging tasks. Before constructing the driving test digital twin system, it is necessary to determine whether the functional modules used by these test tasks are installed on the same composite equipment in the test site. Then, for these functional modules located on the same composite equipment, it is necessary to further consider whether there is mutual interference between them. For example, on some test sites, a gantry may simultaneously install the signal light control required for the AEB test task, the V2X communication module required for the V2I test task, the microphone module required for the vehicle driving noise test task, and the millimeter-wave radar required for the ranging task. Obviously, if these tasks are executed in parallel and these functional modules are activated simultaneously, there will be mutual interference between them. For example, the driving power supply of the signal control lights may cause radio frequency interference to the V2X communication module, and the 79GHz millimeter-wave radar may interfere with the 5.9GHz V2X band. In summary, after breaking down and analyzing the parallel testing task, the interfering functional modules of the composite equipment involved in the task were identified. These interfering modules were then decoupled, ensuring that multiple testing tasks could run in parallel without mutual interference or with significantly reduced interference. It is understandable that without decoupling these interfering devices, the parallel testing tasks would be unable to collect accurate test data, and there is even a risk of transmitting dangerous data, potentially leading to test failure. For example, when a signal light operates with a high current (≥10A), the V2X communication error rate spikes by 300 times; the PWM harmonics of a supplementary lighting lamp block a 79GHz radar, increasing the target detection miss rate by 45%.

[0074] It should be noted that in this step, if the parallel test task does not have any composite devices to be decoupled, a corresponding driving test digital twin system can be directly built for the parallel test task. If the parallel test task has composite devices to be decoupled, there may be one or more. Subsequent decoupling operations can be performed sequentially for each composite device.

[0075] Step S102: For any composite device to be decoupled, obtain the conflict factor matrix corresponding to the composite device to be decoupled based on the interference type between the functional modules. The interference type includes radio frequency interference, optical interference and acoustic interference. Each element in the conflict factor matrix is ​​the conflict factor between the two functional modules used by the corresponding two test tasks. The conflict factor represents the magnitude of the interference between the two functional modules used by the corresponding two test tasks.

[0076] If two functional modules in any decoupled composite device interfere with each other, the type of interference must first be determined. Common types include radio frequency interference, optical interference, and acoustic interference. Then, the degree of interference between the two functional modules is determined based on the type of interference, i.e., the magnitude of the conflict factor. Understandably, if interference exists but is minor, it can be considered as not affecting the test. If interference exists and is too significant, it is considered as affecting the test and task refactoring is required (i.e., refactoring the functional modules used by the task, generally refactoring the functional module acting as the interference source, or refactoring both functional modules simultaneously). If interference exists and is excessively large, the test is considered risky, and the parallel execution of the task can be stopped. Extending this further, if more than two functional modules in any decoupled composite device interfere with each other, the conflict factor between any two functional modules is calculated separately, and these conflict factors are used as elements of a matrix, thus obtaining the conflict factor matrix corresponding to the decoupled composite device. It should be noted that when two functional modules interfere with each other, they are divided into interference source and victim unit. For example, the driving power supply of the signal control light will generate radio frequency interference to the V2X communication module. The signal control light module is the interference source, and the V2X communication module is the victim unit.

[0077] Specifically, the methods for obtaining conflict factors differ for different types of interference, and consequently, the corresponding conflict factor acquisition matrices also differ.

[0078] When the interference type is radio frequency interference, the methods for obtaining the conflict factor matrix include:

[0079] First, identify any two mutually interfering functional modules, namely, the first functional module and the second functional module. The first functional module is the interference source, and the second functional module is the victim. Then, obtain the interference power density of the first functional module on the second functional module, and obtain the system tolerance power of the second functional module. Based on the interference power density and system tolerance power, obtain the corresponding spatial interference term. Next, obtain the time decay term corresponding to the temperature rise accumulation caused by the continuous operation of the second functional module. Subsequently, couple the spatial interference term and the time decay term to obtain the corresponding conflict factor. Finally, based on the conflict factors of each mutually interfering functional module, obtain the corresponding conflict factor matrix. The diagonal elements in the conflict factor matrix only represent the time decay of the functional module used in the corresponding test task.

[0080] When the interference type is optical interference, the methods for obtaining the conflict factor matrix include:

[0081] First, identify any two mutually interfering functional modules, namely, the first functional module (interference source) and the second functional module (victim). Then, obtain the interference light intensity emitted by the first functional module and the sensor light intensity saturation threshold of the second functional module, and calculate the ratio between the interference light intensity and the light intensity saturation threshold. Next, obtain the spectral overlap factor between the first and second functional modules, and couple the comparison value and the spectral overlap factor to obtain the corresponding conflict factor. Finally, based on the conflict factors of each mutually interfering functional module, obtain the corresponding conflict factor matrix.

[0082] When the interference type is acoustic interference, the methods for obtaining the conflict factor matrix include:

[0083] First, identify any two mutually interfering functional modules, namely, the first functional module and the second functional module, whereby the first functional module is the interference source and the second functional module is the victim. Then, obtain the sound pressure level and background noise threshold of the first functional module, and derive the corresponding conflict factor based on these values. Finally, based on the conflict factors of each mutually interfering functional module, obtain the corresponding conflict factor matrix.

[0084] It is understandable that determining the conflict factor matrix is ​​a key step in this application. Different conflict matrix acquisition methods are set for each type of interference, i.e., different preset thresholds are used to determine whether the functional modules need to be reconstructed subsequently.

[0085] Step S103: Obtain the conflict factors whose off-diagonal elements of the conflict factor matrix are greater than the preset threshold under the interference type, and reconstruct the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, perform virtual-real bidirectional mapping to construct a driving test digital twin system corresponding to the site required for the concurrent test task to be constructed.

[0086] In this step, the reconstructed functional module parameters are mapped onto the digital twin system using a virtual-real bidirectional mapping technology, enabling the intelligent construction of the driving test site. The digital twin system can accurately simulate the actual driving test environment, providing reliable site support for concurrent testing tasks.

[0087] It should be noted that, during the refactoring process, this application proposes to provide refactoring methods for different functional modules in order to complete the functional module refactoring in the shortest possible time and ensure the safe and efficient execution of parallel testing tasks.

[0088] The proposed solution first obtains the decoupled composite devices involved in the execution of the concurrent test task. Then, for any decoupled composite device, based on the interference type between functional modules, it obtains the corresponding conflict factor matrix. Finally, it obtains the conflict factors whose off-diagonal elements are greater than a preset threshold under the interference type, and reconstructs the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, it performs a virtual-real bidirectional mapping to construct a driving test digital twin system corresponding to the site required for the concurrent test task. This solution achieves dynamic decoupling by reconstructing the mutually interfering functional modules in the composite devices involved in the concurrent test task, eliminating the influence of radio frequency interference, optical interference, and acoustic interference on the test. Finally, it constructs a driving test digital twin system corresponding to the site required for vehicle testing based on the dynamically decoupled functional modules, ensuring the efficiency of vehicle testing and the accuracy of test data.

[0089] In one optional embodiment of this application, obtaining the decoupled composite device involved in the execution of the concurrent test task to be built includes:

[0090] Obtain the first composite device involved in each test task in the concurrent test task to be constructed;

[0091] The composite device used by at least two test tasks in the first composite device is identified as the second composite device;

[0092] Composite devices in the second composite device group whose at least two functional modules used by the tested task interfere with each other are considered as composite devices to be decoupled.

[0093] In one optional embodiment of this application, if the interference type is radio frequency interference, obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes:

[0094] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0095] Obtain the interference power density of the first functional module to the second functional module, obtain the system tolerance power of the second functional module, and obtain the corresponding spatial interference item based on the interference power density and the system tolerance power;

[0096] Obtain the time decay term corresponding to the temperature rise accumulation caused by the continuous operation of the second functional module device;

[0097] The spatial interference term and the time decay term are coupled to obtain the corresponding conflict factor;

[0098] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained. The diagonal elements in the conflict factor matrix only represent the time decay of the functional module used by the corresponding test task.

[0099] Specifically, if the interference type is radio frequency interference, the spatial interference term is first caused by spatial electromagnetic interference. Examining the electromagnetic compatibility limit, the spatial interference term is obtained as follows:

[0100] (1) The interference power density of the first functional module to the second functional module can be obtained by the following formula:

[0101]

[0102] in, The interference power density of the first functional module to the second functional module; Permeability of free space; The rate of change of the interference source current was obtained through derivative calculation using a high-frequency current probe and an oscilloscope. A The equivalent receiving area of ​​the victim unit; d The distance between the interference source and the victim unit is obtained by measurement and calibration using a laser rangefinder. The characteristic frequency of the concentrated interference energy is obtained by peak detection calibration using a spectrum analyzer.

[0103] (2) The system tolerance power of the second functional module can be obtained by the following formula:

[0104]

[0105] in, The system tolerance power for the second functional module; Boltzmann's constant, is the absolute ambient temperature; B is the receiver's equivalent noise band, obtained through scanning and calibration using a vector network analyzer. The minimum signal-to-noise ratio (to ensure communication quality) is obtained through testing and calibration using a bit error rate tester.

[0106] (3) The spatial interference term is:

[0107]

[0108] The time decay term reflects the decay of the heat accumulation effect and can be obtained using the following formula:

[0109]

[0110] in, The duration of the current task's continuous execution is obtained via the FPGA's real-time clock. The thermal time constant of the equipment; The material density of the second functional module is measured and calibrated using an electronic densitometer. The specific heat capacity of the second functional module can be measured and calibrated using a differential scanning calorimeter. This refers to the volume of the second functional module; h The convective heat transfer coefficient; This refers to the heat dissipation surface area of ​​the second functional module.

[0111] After obtaining the spatial interference term and the time decay term, coupling the two together yields the corresponding conflict factor. There are several ways to couple them; for example, the spatial interference term and the time decay term can be multiplied together to obtain the corresponding conflict factor.

[0112] Additionally, in the case of radio frequency interference, a preset threshold can be set to 0.8. If the conflict factor is not greater than 0.8, concurrent test tasks can be performed directly without calling dynamic decoupling. If the conflict factor is greater than 0.8 but not greater than 1.5, dynamic decoupling needs to be called, i.e., the interference source needs to be reconstructed. If the conflict factor is greater than 1.5, the interference source should be shut down immediately.

[0113] Furthermore, the reconstruction of the interference sources in the two functional modules corresponding to the maximum conflict factor includes:

[0114] If the interference type is radio frequency interference, then the function module acting as the interference source is disabled and the alternative function module is activated.

[0115] Specifically, if the first functional module is a traffic light and the second functional module is a V2X communication module with a conflict factor of 24, then the traffic light is shut off immediately, and a virtual traffic light is generated on the LED screen. This achieves the reconstruction of the first functional module. This ensures that the first functional module does not interfere with the second functional module, and also guarantees that the corresponding test tasks have alternative functional modules to perform their functions.

[0116] In one optional embodiment of this application, if the interference type is optical interference, obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes:

[0117] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0118] The interference light intensity emitted by the first functional module and the sensor light intensity saturation threshold of the second functional module are obtained, and the ratio between the interference light intensity and the light intensity saturation threshold is obtained.

[0119] Obtain the spectral overlap factor between the first functional module and the second functional module, and couple the ratio and the spectral overlap factor to obtain the corresponding conflict factor;

[0120] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0121] Specifically, the intensity of the interfering light emitted by the first functional module can be measured and calibrated using an illuminance meter, and the saturation threshold of the sensor light intensity of the second functional module can be obtained from the sensor datasheet. The spectral overlap factor is the ratio of the overlapping areas of the spectra of the two light sources. The coupling between the ratio and the spectral overlap factor can be achieved by multiplying the two.

[0122] Furthermore, in optical interference types, such as when the spectrum of the supplementary light (>1000 lux) overlaps with that of the tree-lined road simulator (550-650 nm), multispectral fusion projection can be used for functional module reconstruction.

[0123] In one optional embodiment of this application, if the interference type is acoustic interference, obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes:

[0124] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0125] Obtain the sound pressure level and background noise threshold of the first functional module, and obtain the corresponding conflict factor based on the sound pressure level and the background noise threshold;

[0126] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0127] Specifically, the corresponding conflict factor is obtained based on the sound pressure level and the background noise threshold, which can be the ratio of the difference between the sound pressure level and the background noise threshold to a fixed constant.

[0128] Furthermore, in acoustic interference types, inverse acoustic beamforming technology can be used for functional module reconstruction.

[0129] In one optional embodiment of this application, the step of obtaining conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and reconstructing the functional modules used by the two test tasks corresponding to the conflict factors, includes:

[0130] Step A: Obtain the maximum conflict factor among the conflict factors that are greater than the preset threshold, and reconstruct the interference sources in the two functional modules corresponding to the maximum conflict factor. Then, based on the reconstructed functional modules and victim units, obtain the reconstructed conflict factors and update the conflict factor matrix using the reconstructed conflict factors.

[0131] Step B: Repeat step A until all conflict factors in the conflict factor matrix are no greater than the preset threshold.

[0132] Figure 2 A structural block diagram of a site intelligent construction system for vehicle driving tests provided in this application embodiment is shown below. Figure 2 As shown, the system may include:

[0133] The module 201 for acquiring decoupled composite devices is used to acquire the decoupled composite devices involved in the execution of concurrent test tasks to be built. The concurrent test tasks to be built include at least two concurrent test tasks. The decoupled composite devices are composite devices in which the functional modules of the decoupled composite devices used by each test task interfere with each other when the at least two test tasks are executed.

[0134] The conflict factor matrix acquisition module 202 is used to acquire the conflict factor matrix corresponding to any composite device to be decoupled based on the interference type between the functional modules. The interference type includes radio frequency interference, optical interference and acoustic interference. Each element in the conflict factor matrix is ​​the conflict factor between the two functional modules used by the corresponding two test tasks. The conflict factor represents the magnitude of the interference between the two functional modules used by the corresponding two test tasks.

[0135] The test site construction module 203 is used to obtain the conflict factors whose off-diagonal elements of the conflict factor matrix are greater than the preset threshold under the interference type, and to reconstruct the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, a virtual-real bidirectional mapping is performed to construct the driving test digital twin system corresponding to the test site required by the concurrent test task to be constructed.

[0136] The proposed solution first obtains the decoupled composite devices involved in the execution of the concurrent test task. Then, for any decoupled composite device, based on the interference type between functional modules, it obtains the corresponding conflict factor matrix. Finally, it obtains the conflict factors whose off-diagonal elements are greater than a preset threshold under the interference type, and reconstructs the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, it performs a virtual-real bidirectional mapping to construct a driving test digital twin system corresponding to the site required for the concurrent test task. This solution achieves dynamic decoupling by reconstructing the mutually interfering functional modules in the composite devices involved in the concurrent test task, eliminating the influence of radio frequency interference, optical interference, and acoustic interference on the test. Finally, it constructs a driving test digital twin system corresponding to the site required for vehicle testing based on the dynamically decoupled functional modules, ensuring the efficiency of vehicle testing and the accuracy of test data.

[0137] In one optional embodiment of this application, the module for acquiring the decoupled composite device is specifically used for:

[0138] Obtain the first composite device involved in each test task in the concurrent test task to be constructed;

[0139] The composite device used by at least two test tasks in the first composite device is identified as the second composite device;

[0140] Composite devices in the second composite device group whose at least two functional modules used by the tested task interfere with each other are considered as composite devices to be decoupled.

[0141] In one optional embodiment of this application, if the interference type is radio frequency interference, the conflict factor matrix acquisition module is specifically used for:

[0142] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0143] Obtain the interference power density of the first functional module to the second functional module, obtain the system tolerance power of the second functional module, and obtain the corresponding spatial interference item based on the interference power density and the system tolerance power;

[0144] Obtain the time decay term corresponding to the temperature rise accumulation caused by the continuous operation of the second functional module device;

[0145] The spatial interference term and the time decay term are coupled to obtain the corresponding conflict factor;

[0146] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained. The diagonal elements in the conflict factor matrix only represent the time decay of the functional module used by the corresponding test task.

[0147] In one optional embodiment of this application, if the interference type is optical interference, the conflict factor matrix acquisition module is specifically used for:

[0148] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0149] The interference light intensity emitted by the first functional module and the sensor light intensity saturation threshold of the second functional module are obtained, and the ratio between the interference light intensity and the light intensity saturation threshold is obtained.

[0150] Obtain the spectral overlap factor between the first functional module and the second functional module, and couple the ratio and the spectral overlap factor to obtain the corresponding conflict factor;

[0151] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0152] In one optional embodiment of this application, if the interference type is acoustic interference, the conflict factor matrix acquisition module is specifically used for:

[0153] Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit;

[0154] Obtain the sound pressure level and background noise threshold of the first functional module, and obtain the corresponding conflict factor based on the sound pressure level and the background noise threshold;

[0155] Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

[0156] In one optional embodiment of this application, the test site construction module is specifically used for:

[0157] Step A: Obtain the maximum conflict factor among the conflict factors that are greater than the preset threshold, and reconstruct the interference sources in the two functional modules corresponding to the maximum conflict factor. Then, based on the reconstructed functional modules and victim units, obtain the reconstructed conflict factors and update the conflict factor matrix using the reconstructed conflict factors.

[0158] Step B: Repeat step A until all conflict factors in the conflict factor matrix are no greater than the preset threshold.

[0159] In an optional embodiment of this application, the test site construction module is further configured to:

[0160] If the interference type is radio frequency interference, then the function module acting as the interference source is disabled and the alternative function module is activated.

[0161] Figure 3 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 3As shown, the electronic device may include: a processor 310, a communication interface 320, a memory 330, and a communication bus 340, wherein the processor 310, the communication interface 320, and the memory 330 communicate with each other through the communication bus 340. The processor 310 can call logical instructions in the memory 330 to execute a site intelligent construction method for vehicle driving tests. This method includes: acquiring the decoupled composite devices involved in the execution of concurrent test tasks, wherein the concurrent test tasks include at least two concurrent test tasks, and the decoupled composite devices are composite devices whose functional modules interfere with each other when the at least two test tasks are executed; for any decoupled composite device, based on the interference type between the functional modules, acquiring the conflict factor matrix corresponding to the decoupled composite device, wherein... The interference types include radio frequency interference, optical interference, and acoustic interference. Each element in the conflict factor matrix is ​​a conflict factor between two functional modules used by two corresponding test tasks. The conflict factor characterizes the degree of interference between the two functional modules used by the two corresponding test tasks. Conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type are obtained, and the functional modules used by the two test tasks corresponding to the conflict factors are reconstructed. Based on the parameters of the reconstructed functional modules, a virtual-real bidirectional mapping is performed to construct a driving test digital twin system corresponding to the site required for the concurrent test tasks to be constructed. Furthermore, the logical instructions in the aforementioned memory 330 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage media include: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media that can store program code.

[0162] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the above-described intelligent site construction method for vehicle driving tests. This method includes: acquiring the decoupled composite devices involved in the execution of concurrent test tasks, wherein the concurrent test tasks include at least two concurrent test tasks, and the decoupled composite devices are composite devices whose functional modules interfere with each other when the at least two test tasks are executed; for any decoupled composite device, based on the functional modules... The interference types are identified, and a conflict factor matrix corresponding to the decoupled composite device is obtained. The interference types include radio frequency interference, optical interference, and acoustic interference. Each element in the conflict factor matrix represents the conflict factor between two functional modules used by the two corresponding test tasks. The conflict factor characterizes the degree of interference between the two functional modules used by the two corresponding test tasks. The conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type are obtained. The functional modules used by the two test tasks corresponding to the conflict factors are reconstructed. Based on the parameters of the reconstructed functional modules, a virtual-real bidirectional mapping is performed to construct a driving test digital twin system corresponding to the site required for the concurrent test tasks to be constructed.

[0163] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described intelligent site construction method for vehicle driving tests. This method includes: acquiring decoupled composite devices involved in the execution of concurrent test tasks to be constructed, wherein the concurrent test tasks to be constructed include at least two concurrent test tasks, and the decoupled composite devices are composite devices whose functional modules interfere with each other when the at least two test tasks are executed; for any decoupled composite device, based on the interference type between the functional modules, acquiring the decoupled composite device... A conflict factor matrix corresponding to the decoupled composite device is generated, wherein the interference types include radio frequency interference, optical interference, and acoustic interference. Each element in the conflict factor matrix is ​​a conflict factor between two functional modules used by two corresponding test tasks. The conflict factor represents the magnitude of interference between the two functional modules used by the two corresponding test tasks. Conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type are obtained, and the functional modules used by the two test tasks corresponding to the conflict factors are reconstructed. Based on the parameters of the reconstructed functional modules, a virtual-real bidirectional mapping is performed to construct a driving test digital twin system corresponding to the site required for the concurrent test tasks to be constructed.

[0164] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0165] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0166] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for intelligently constructing a testing ground for vehicle driving tests, characterized in that, include: Obtain the decoupled composite device involved in the execution of the concurrent test task to be built, wherein the concurrent test task to be built includes at least two concurrent test tasks, and the decoupled composite device is a composite device in which the functional modules of the decoupled composite device used by each test task interfere with each other when the at least two test tasks are executed. For any composite device to be decoupled, based on the interference type of mutual interference between functional modules, the conflict factor matrix corresponding to the composite device to be decoupled is obtained. The interference type includes radio frequency interference, optical interference and acoustic interference. Each element in the conflict factor matrix is ​​the conflict factor between the two functional modules used by the two corresponding test tasks. The conflict factor represents the magnitude of the interference between the two functional modules used by the two corresponding test tasks. Obtain conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and reconstruct the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, perform virtual-real bidirectional mapping to construct a driving test digital twin system corresponding to the site required for the concurrent test task to be constructed. If the interference type is radio frequency interference, the method of obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type of mutual interference between functional modules includes: Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit; Obtain the interference power density of the first functional module to the second functional module, obtain the system tolerance power of the second functional module, and obtain the corresponding spatial interference item based on the interference power density and the system tolerance power; Obtain the time decay term corresponding to the temperature rise accumulation caused by the continuous operation of the second functional module device; The spatial interference term and the time decay term are coupled to obtain the corresponding conflict factor; Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained. The diagonal elements in the conflict factor matrix only represent the time decay of the functional module used by the corresponding test task.

2. The method according to claim 1, characterized in that, The acquisition of the decoupled composite devices involved in the execution of the concurrent test task to be built includes: Obtain the first composite device involved in each test task in the concurrent test task to be constructed; The composite device used by at least two test tasks in the first composite device is identified as the second composite device; Composite devices in the second composite device group whose at least two functional modules used by the tested task interfere with each other are considered as composite devices to be decoupled.

3. The method according to claim 1, characterized in that, If the interference type is optical interference, the method for obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type between functional modules includes: Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit; The interference light intensity emitted by the first functional module and the sensor light intensity saturation threshold of the second functional module are obtained, and the ratio between the interference light intensity and the light intensity saturation threshold is obtained. Obtain the spectral overlap factor between the first functional module and the second functional module, and couple the ratio and the spectral overlap factor to obtain the corresponding conflict factor; Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

4. The method according to claim 1, characterized in that, If the interference type is acoustic interference, the method for obtaining the conflict factor matrix corresponding to the decoupled composite device based on the interference type between functional modules includes: Identify any two mutually interfering functional modules, namely, a first functional module and a second functional module, wherein the first functional module is the interference source and the second functional module is the victim unit; Obtain the sound pressure level and background noise threshold of the first functional module, and obtain the corresponding conflict factor based on the sound pressure level and the background noise threshold; Based on the conflict factors of each interfering functional module, the corresponding conflict factor matrix is ​​obtained.

5. The method according to claim 1, characterized in that, The step of obtaining conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and reconstructing the functional modules used by the two test tasks corresponding to the conflict factors, includes: Step A: Obtain the maximum conflict factor among the conflict factors that are greater than the preset threshold, and reconstruct the interference sources in the two functional modules corresponding to the maximum conflict factor. Then, based on the reconstructed functional modules and victim units, obtain the reconstructed conflict factors and update the conflict factor matrix using the reconstructed conflict factors. Step B: Repeat step A until all conflict factors in the conflict factor matrix are no greater than the preset threshold.

6. The method according to claim 5, characterized in that, The reconstruction of the interference sources in the two functional modules corresponding to the maximum conflict factor includes: If the interference type is radio frequency interference, then the function module acting as the interference source is disabled and the alternative function module is activated.

7. An intelligent construction system for the intelligent site construction method of vehicle driving test according to any one of claims 1-6, characterized in that, include: The module for acquiring decoupled composite devices is used to acquire the decoupled composite devices involved in the execution of the concurrent test task to be built. The concurrent test task to be built includes at least two concurrent test tasks. The decoupled composite devices are composite devices in which the functional modules of the decoupled composite devices used by each test task interfere with each other when the at least two test tasks are executed. The conflict factor matrix acquisition module is used to acquire the conflict factor matrix corresponding to any composite device to be decoupled based on the interference type between the functional modules. The interference type includes radio frequency interference, optical interference and acoustic interference. Each element in the conflict factor matrix is ​​the conflict factor between the two functional modules used by the corresponding two test tasks. The conflict factor represents the magnitude of the interference between the two functional modules used by the corresponding two test tasks. The test site construction module is used to obtain conflict factors whose off-diagonal elements of the conflict factor matrix are greater than a preset threshold under the interference type, and to reconstruct the functional modules used by the two test tasks corresponding to the conflict factors. Based on the parameters of the reconstructed functional modules, a virtual-real bidirectional mapping is performed to construct a driving test digital twin system corresponding to the test site required by the concurrent test task to be constructed.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 6.

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