In-vehicle wireless communication performance evaluation and measurement method and device for intelligent connected vehicles

Abstract

The present invention discloses a method and device for evaluating the performance of wireless communication in a smart connected car. The method includes: obtaining performance measurement data of a single-level smart connected car in-car communication antenna; based on the performance measurement data, performing full-wave simulation in combination with the in-car environment of the entire vehicle to obtain the power values ​​of wireless communication signals at multiple designated positions in the vehicle; judging whether the difference between the wireless communication signal power value and a preset power limit value is within a limited value range, and when the judgment is yes, determining that the in-car wireless communication performance of the smart connected car is qualified; when the judgment is no, determining that the in-car wireless communication performance of the smart connected car is unqualified. The present invention replaces the traditional test scheme of arranging multiple sensors in the car, and can achieve accurate and rapid evaluation of the in-car wireless communication performance of the smart connected car on the basis of ensuring test consistency and test accuracy, greatly improving test efficiency, and greatly reducing the cost of test system construction.

Description

Technical Field

[0001] The present invention relates to the field of antenna performance measurement technology, and in particular to a method and device for evaluating and measuring in-vehicle wireless communication performance for intelligent network-connected vehicles. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention recited in the claims. No admission is made that the description herein is prior art by inclusion in this section.

[0003] The enhanced mobile broadband scenario (eMBB) in the three major application scenarios of the fifth generation of mobile communications (5G) mainly improves the user experience of personal consumer services such as entertainment and social networking centered on "people". "High speed, large bandwidth, and low latency" are the key to improving the user experience of individual users. As an important carrier for user experience of 5G, with the emergence of the next generation of advanced driving assistance systems and the increasing popularity of in-vehicle infotainment equipment, more and more vehicles are beginning to use wireless technology to achieve vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) and vehicle-to-network (V2N) connections. Under this technological trend, modern cars are increasingly like a wireless technology center that integrates a series of in-vehicle wireless communication technologies and multiple transmission systems. A car can be equipped with up to 40 to 50 antennas. For many automakers, wireless connectivity has become a key market strategy.

[0004] Different from the out-of-vehicle wireless communication for other traffic participants (V2X, satellite navigation, etc.), the in-vehicle wireless communication of intelligent connected vehicles is mainly based on 4G / 5G mobile communication, Bluetooth, WiFi and other wireless communication technologies, aiming to enhance the user experience of personal consumption services such as entertainment and social interaction centered on "people". Therefore, there must be a strict test process to ensure the reliability, compliance and consumer experience of in-vehicle wireless communication. Unfortunately, considering the particularity of in-vehicle wireless communication scenarios, traditional wireless communication performance test methods are not applicable to the evaluation of in-vehicle wireless communication performance of the entire vehicle. It is mainly reflected in:

[0005] 1. The traditional wireless communication performance test is based on the direct far-field test method. The device under test is placed at the center of the darkroom turntable, and the wireless communication performance indicators (gain, EIRP, EIS, etc.) of the device under test are sampled on the test sphere with a radius greater than the far-field distance of the device under test. Since it is a free space far-field test, the obtained wireless communication performance indicators are independent of the test distance;

[0006] 2. For the in-vehicle wireless communication performance test of the whole vehicle, the focus is on the wireless communication performance evaluation inside the vehicle body (rather than outside the whole vehicle). First, the darkroom measurement antenna based on direct far-field cannot enter the interior of the vehicle body to sample the field characteristics inside the vehicle; second, the in-vehicle environment is complex (equipment, seats, passengers, etc.), and it is not a free space test environment; finally, the in-vehicle wireless communication performance evaluation focuses on the power distribution at different locations in the vehicle, rather than the far-field wireless communication performance indicators measured at a fixed test distance. The power distribution changes with the test distance and is closely related to the in-vehicle environment / scenario. For different seat arrangements and people sitting in different ways, the power distribution will be very different even at the same test position.

[0007] In view of this, the industry's in-vehicle wireless communication performance testing and evaluation has long been in the primary stage. Automakers have always regarded antennas, including radars, as aftermarket accessories like cameras for recording videos: in the final stage of vehicle design, they only need to select, purchase and install antennas based on the radiation characteristics of the antenna monomer, and do not evaluate the in-vehicle wireless communication performance at the vehicle level. This testing method ignores the impact of the vehicle body and the layout of equipment / personnel in the vehicle on the in-vehicle wireless communication performance, and cannot meet the requirements for in-vehicle wireless communication performance evaluation in the era of intelligent connected vehicles.

[0008] With the emergence of semi-automatic or fully-automatic vehicles, manufacturers have begun to realize that in-vehicle wireless communication performance evaluation is an indispensable key step to ensure the user experience of personal consumer services. At present, the typical in-vehicle wireless communication performance evaluation method is to arrange a large number of power probes at different locations in the car, collect the power distribution values ​​at relevant locations, and draw the relevant three-dimensional power distribution curve. For the power value at the position between two probes, the interpolation method is used for calculation. This solution takes into account the impact of the test distance and the in-vehicle equipment / personnel layout scenario on the in-vehicle wireless communication performance, and has high test accuracy. However, this solution has the problem of extremely complex test layout and high test cost. Accurate in-vehicle wireless communication signal power collection requires the deployment of hundreds of power probes in the car and the connection of multiple test instruments outside the car. It is also necessary to consider the interference between different in-vehicle probes and between probes and cables. In addition, for multiple different in-vehicle equipment / personnel layout scenarios, the power probes need to be rearranged for testing, which requires a lot of time for test preparation and implementation, and the time cost is high. Summary of the invention

[0009] The embodiment of the present invention provides a method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent network-connected vehicle, which is used to solve the technical problem that hundreds of power probes are deployed in the vehicle in the prior art, which requires a lot of time for test preparation and implementation, and has high time cost. The method includes:

[0010] Conduct performance measurement of the in-vehicle communication antenna of a single-unit intelligent networked vehicle, and obtain performance measurement data of the in-vehicle communication antenna of a single-unit intelligent networked vehicle;

[0011] Based on the performance measurement data of the in-vehicle communication antenna of a single-unit intelligent connected vehicle, a full-wave simulation is performed in combination with the in-vehicle environment of the entire vehicle to obtain the wireless communication signal power values ​​at multiple specified locations in the vehicle;

[0012] Determine whether the difference between the wireless communication signal power value and a preset power limit is within a limited value range. When the determination is yes, determine that the in-vehicle wireless communication performance of the intelligent connected vehicle is qualified; when the determination is no, determine that the in-vehicle wireless communication performance of the intelligent connected vehicle is unqualified.

[0013] The embodiment of the present invention further provides a device for evaluating and measuring the in-vehicle wireless communication performance of an intelligent networked vehicle, which is used to solve the technical problem that hundreds of power probes are deployed in the vehicle in the prior art, which requires a lot of time for test preparation and implementation, and has high time cost. The device includes:

[0014] A performance measurement data acquisition module is used to perform performance measurement of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle and obtain performance measurement data of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle;

[0015] The wireless communication signal power value acquisition module is used to perform full-wave simulation based on the performance measurement data of the in-vehicle communication antenna of a single-level intelligent networked vehicle and the in-vehicle environment of the entire vehicle to obtain the wireless communication signal power values ​​at multiple specified locations in the vehicle;

[0016] The wireless communication performance qualification judgment module is used to judge whether the difference between the wireless communication signal power value and the preset power limit value is within the limited value range. When the judgment is yes, it is determined that the wireless communication performance in the intelligent connected vehicle is qualified; when the judgment is no, it is determined that the wireless communication performance in the intelligent connected vehicle is unqualified.

[0017] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles when executing the computer program.

[0018] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles is implemented.

[0019] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the above-mentioned in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles.

[0020] In the embodiment of the present invention, compared with the technical solution of accurate in-vehicle wireless communication signal power acquisition in the prior art, which requires the deployment of hundreds of power probes in the vehicle, and the connection of multiple test instruments outside the vehicle, and also the need to consider the interference between different probes in the vehicle and between the probes and cables, the performance measurement data of the in-vehicle communication antenna of the single-level intelligent networked vehicle is obtained; based on the performance measurement data, full-wave simulation is performed in combination with the in-vehicle environment of the whole vehicle to obtain the wireless communication signal power values ​​at multiple specified positions in the vehicle; it is determined whether the difference between the wireless communication signal power value and the pre-set power limit value is within the limited value range, and when it is determined to be yes, it is determined that the in-vehicle wireless communication performance of the intelligent networked vehicle is qualified; when it is determined to be no, it is determined that the in-vehicle wireless communication performance of the intelligent networked vehicle is unqualified. The present invention replaces the traditional test solution of arranging multiple sensors in the vehicle, and can realize accurate and rapid evaluation of the in-vehicle wireless communication performance of the intelligent networked vehicle on the basis of ensuring test consistency and test accuracy, greatly improve test efficiency, and greatly reduce the cost of test system construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 The process of the wireless communication performance evaluation and measurement method for intelligent connected vehicles in the embodiment of the present invention is as follows Figure 1 ;

[0023] Figure 2 The following is a flow chart of a method for evaluating the performance of wireless communication in a smart connected vehicle according to an embodiment of the present invention. Figure 2 ;

[0024] Figure 3 The following is a flow chart of a method for evaluating the performance of wireless communication in a smart connected vehicle according to an embodiment of the present invention. Figure 3 ;

[0025] Figure 4 The process of the wireless communication performance evaluation and measurement method for intelligent connected vehicles in the embodiment of the present invention is as follows Figure 4 ;

[0026] Figure 5 The process of the wireless communication performance evaluation and measurement method for intelligent connected vehicles in the embodiment of the present invention is as follows Figure 5 ;

[0027] Figure 6 This is a flow chart of a specific and complete method for evaluating the performance of in-vehicle wireless communication of an intelligent connected vehicle in an embodiment of the present invention;

[0028] Figure 7 This is a structural block diagram of a device for evaluating and measuring in-vehicle wireless communication performance for intelligent connected vehicles in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0030] In the description of this specification, the terms "include", "including", "have", "contain", etc. are all open terms, which mean including but not limited to. The descriptions with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", etc. mean that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The order of steps involved in each embodiment is used to schematically illustrate the implementation of the present application, and the order of steps is not limited and can be appropriately adjusted as needed.

[0031] Figure 1 The process of the wireless communication performance evaluation and measurement method for intelligent connected vehicles in the embodiment of the present invention is as follows Figure 1 ,like Figure 1 As shown, the method includes:

[0032] Step 101: Performing performance measurement of an in-vehicle communication antenna of a single-unit intelligent network-connected vehicle to obtain performance measurement data of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle;

[0033] Step 102: Based on the performance measurement data of the in-vehicle communication antenna of the single-unit intelligent network-connected vehicle, a full-wave simulation is performed in combination with the in-vehicle environment of the entire vehicle to obtain the wireless communication signal power values ​​at multiple designated locations in the vehicle;

[0034] Step 103: Determine whether the difference between the wireless communication signal power value and a preset power limit value is within a limited value range:

[0035] Step 104: When the determination is yes, determining that the in-vehicle wireless communication performance of the intelligent network-connected vehicle is qualified;

[0036] Step 105: When the determination is no, it is determined that the in-vehicle wireless communication performance of the intelligent connected vehicle is unqualified.

[0037] Specifically, the present invention calculates and evaluates the in-vehicle wireless communication performance of the intelligent connected vehicle based on the performance measurement data of the in-vehicle communication antenna of a single-body intelligent connected vehicle, combined with the full-wave simulation of the in-vehicle environment of the entire vehicle, and uses the wireless communication signal power values ​​at multiple specified locations as the in-vehicle wireless communication performance index, replacing the traditional wireless communication performance indexes (gain, EIRP / EIS, TRP / TIS, etc.), and uses the difference between the wireless communication signal power value and the pre-set power limit as the judgment index.

[0038] Specifically, the performance measurement data of the single-unit-level intelligent connected vehicle in-vehicle communication antenna includes its equivalent current distribution, and the amplitude and phase distribution of the tangential electric field.

[0039] Specifically, the selection of the multiple designated positions includes the head position, waist position, armrest position of the vehicle occupant, and all possible positions in the vehicle where wireless communication terminals (mobile phones, laptop computers, and Pads) may be placed.

[0040] In the embodiment of the present invention, Figure 2 As shown, step 102 performs full-wave simulation based on the performance measurement data of the in-vehicle communication antenna of the single-level intelligent network-connected vehicle and the in-vehicle environment of the whole vehicle to obtain the wireless communication signal power values ​​at multiple specified locations, including:

[0041] Step 201: converting the format of the measurement result file corresponding to the performance measurement data and importing it into full-wave electromagnetic simulation software;

[0042] Step 202: In combination with the interior environment of the vehicle, full-wave simulation is performed based on full-wave electromagnetic simulation software to obtain wireless communication signal power values ​​at multiple specified locations.

[0043] Specifically, when performing full-wave simulation calculation of a whole vehicle, the whole vehicle includes the entire body structure;

[0044] When performing full-wave simulation calculations for the entire vehicle, the interior environment (in-vehicle scene) is set according to the vehicle model. The interior environment includes the number and arrangement of people and seats, and the number and placement of human body models.

[0045] Specifically, when performing full-wave simulation calculations for the entire vehicle, the measurement result file should be placed at the actual installation position of the relevant antenna in the vehicle.

[0046] In the embodiment of the present invention, the step 103 of determining whether the difference between the wireless communication signal power value and the preset power limit value is within a limited value range includes:

[0047] like Figure 3 As shown, S3: determine whether the differences between the wireless communication signal power values ​​at multiple designated locations and the preset power limit values ​​are all within the limited value range.

[0048] or,

[0049] like Figure 4 As shown, S4: determine whether the linear average value of the difference between the wireless communication signal power values ​​at multiple designated locations and the preset power limit value is within a limited value range.

[0050] or,

[0051] like Figure 5 As shown, S5: determine whether the weighted average of the differences between the wireless communication signal power values ​​at multiple designated locations and the preset power limit value is within a limited value range.

[0052] Specifically, the selection of the limit value includes, but is not limited to, a power limit of ±3dBm and a power limit of ±5dBm at a relevant position.

[0053] Figure 6 The present invention is a complete flow chart of a method for evaluating the in-vehicle wireless communication performance of an intelligent connected vehicle in an embodiment of the present invention.

[0054] The embodiment of the present invention also provides a device for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle, as described in the following embodiment. Since the principle of solving the problem by the device is similar to the in-vehicle wireless communication performance evaluation and measurement method for an intelligent connected vehicle, the implementation of the device can refer to the implementation of the in-vehicle wireless communication performance evaluation and measurement method for an intelligent connected vehicle, and the repeated parts will not be repeated.

[0055] Figure 7 FIG. 1 is a structural block diagram of a device for evaluating and measuring in-vehicle wireless communication performance of an intelligent connected vehicle according to an embodiment of the present invention. Figure 7 As shown, the device comprises:

[0056] The performance measurement data acquisition module 02 is used to perform performance measurement of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle and obtain performance measurement data of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle;

[0057] The wireless communication signal power value acquisition module 04 is used to perform full-wave simulation based on the performance measurement data of the in-vehicle communication antenna of the single-level intelligent network-connected vehicle and the in-vehicle environment of the whole vehicle to obtain the wireless communication signal power values ​​at multiple specified positions in the vehicle;

[0058] The wireless communication performance qualification judgment module 06 is used to judge whether the difference between the wireless communication signal power value and the preset power limit value is within the limited value range. When the judgment is yes, it is determined that the wireless communication performance in the intelligent connected vehicle is qualified; when the judgment is no, it is determined that the wireless communication performance in the intelligent connected vehicle is unqualified.

[0059] In the embodiment of the present invention, the single-unit-level intelligent network-connected vehicle in-vehicle communication antenna refers to a vehicle-mounted antenna unit for in-vehicle communication that is not installed on the vehicle;

[0060] The performance measurement data of the single-unit-level intelligent connected vehicle in-vehicle communication antenna includes equivalent current distribution, and amplitude and phase distribution of the tangential electric field.

[0061] In the embodiment of the present invention, the wireless communication signal power value obtaining module is specifically used for:

[0062] Convert the format of the measurement result file corresponding to the performance measurement data and import it into the full-wave electromagnetic simulation software;

[0063] Combined with the vehicle interior environment, full-wave simulation is performed based on full-wave electromagnetic simulation software to obtain the wireless communication signal power values ​​at multiple specified locations.

[0064] In the embodiment of the present invention, the measurement result file is placed at the actual installation position of the relevant antenna in the vehicle.

[0065] In an embodiment of the present invention, the whole vehicle includes the entire vehicle body structure;

[0066] The wireless communication signal power value acquisition module is specifically used for:

[0067] Setting the in-car environment according to the vehicle model, the in-car environment including the number and arrangement of people and seats, the number and placement of human models;

[0068] Full-wave simulation is performed in combination with the set in-vehicle environment.

[0069] In the embodiment of the present invention, the wireless communication performance qualification judgment module is specifically used to:

[0070] It is determined whether the differences between the wireless communication signal power values ​​at the plurality of designated locations and the preset power limit values ​​are all within a limited value range.

[0071] In the embodiment of the present invention, the wireless communication performance qualification judgment module is specifically used to:

[0072] It is determined whether a linear average value of a difference between power values ​​of wireless communication signals at a plurality of designated locations and a preset power limit value is within a limited value range.

[0073] In the embodiment of the present invention, the wireless communication performance qualification judgment module is specifically used to:

[0074] It is determined whether a weighted average of differences between power values ​​of wireless communication signals at multiple designated locations and a preset power limit value is within a limited value range.

[0075] In the embodiment of the present invention, the multiple designated positions in the vehicle include the head position, waist position, armrest position of the vehicle occupant, and the position where the wireless communication terminal is placed in the vehicle.

[0076] In the embodiment of the present invention, the limiting value is ±3dBm or ±5dBm.

[0077] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles when executing the computer program.

[0078] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles is implemented.

[0079] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the above-mentioned in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles.

[0080] In the embodiment of the present invention, compared with the technical solution of accurate in-vehicle wireless communication signal power acquisition in the prior art, which requires the deployment of hundreds of power probes in the vehicle, and the connection of multiple test instruments outside the vehicle, and also the need to consider the interference between different probes in the vehicle and between the probes and cables, the performance measurement data of the in-vehicle communication antenna of the single-level intelligent networked vehicle is obtained; based on the performance measurement data, full-wave simulation is performed in combination with the in-vehicle environment of the whole vehicle to obtain the wireless communication signal power values ​​at multiple specified positions in the vehicle; it is determined whether the difference between the wireless communication signal power value and the pre-set power limit value is within the limited value range, and when it is determined to be yes, it is determined that the in-vehicle wireless communication performance of the intelligent networked vehicle is qualified; when it is determined to be no, it is determined that the in-vehicle wireless communication performance of the intelligent networked vehicle is unqualified. The present invention replaces the traditional test solution of arranging multiple sensors in the vehicle, and can realize accurate and rapid evaluation of the in-vehicle wireless communication performance of the intelligent networked vehicle on the basis of ensuring test consistency and test accuracy, greatly improve test efficiency, and greatly reduce the cost of test system construction.

[0081] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0082] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0083] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0084] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0085] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for evaluating the performance of wireless communication in an intelligent connected vehicle, characterized in that: include: Conduct performance measurement of the in-vehicle communication antenna of a single-unit intelligent networked vehicle, and obtain performance measurement data of the in-vehicle communication antenna of a single-unit intelligent networked vehicle; Based on the performance measurement data of the in-vehicle communication antenna of a single-unit intelligent connected vehicle, a full-wave simulation is performed in combination with the in-vehicle environment of the entire vehicle to obtain the wireless communication signal power values ​​at multiple specified locations in the vehicle; Determine whether the difference between the wireless communication signal power value and a preset power limit is within a limited value range. When the determination is yes, determine that the in-vehicle wireless communication performance of the intelligent connected vehicle is qualified; when the determination is no, determine that the in-vehicle wireless communication performance of the intelligent connected vehicle is unqualified.

2. The method for evaluating the performance of wireless communication in a smart connected vehicle according to claim 1, wherein: The single-unit-level intelligent connected vehicle in-vehicle communication antenna refers to a vehicle-mounted antenna unit for in-vehicle communication that is not installed on the vehicle; The performance measurement data of the single-unit-level intelligent connected vehicle in-vehicle communication antenna includes equivalent current distribution, and amplitude and phase distribution of the tangential electric field.

3. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 1, characterized in that: Based on the performance measurement data of the in-vehicle communication antenna of a single-unit intelligent connected vehicle, a full-wave simulation is performed in combination with the in-vehicle environment of the entire vehicle to obtain the wireless communication signal power values ​​at multiple specified locations, including: Convert the format of the measurement result file corresponding to the performance measurement data and import it into the full-wave electromagnetic simulation software; Combined with the vehicle interior environment, full-wave simulation is performed based on full-wave electromagnetic simulation software to obtain the wireless communication signal power values ​​at multiple specified locations.

4. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 3, characterized in that: The measurement result file is placed at the actual installation position of the relevant antenna in the vehicle.

5. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 3, characterized in that: The complete vehicle includes the entire vehicle body structure; Combined with the vehicle interior environment, full-wave simulation is performed, including: Setting the in-car environment according to the vehicle model, the in-car environment including the number and arrangement of people and seats, the number and placement of human models; Full-wave simulation is performed in combination with the set in-vehicle environment.

6. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 1, characterized in that: Determining whether a difference between the wireless communication signal power value and a preset power limit value is within a limited value range includes: It is determined whether the differences between the wireless communication signal power values ​​at the plurality of designated locations and the preset power limit values ​​are all within a limited value range.

7. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 1, characterized in that: Determining whether a difference between the wireless communication signal power value and a preset power limit value is within a limited value range includes: It is determined whether a linear average value of a difference between power values ​​of wireless communication signals at a plurality of designated locations and a preset power limit value is within a limited value range.

8. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 1, characterized in that: Determining whether a difference between the wireless communication signal power value and a preset power limit value is within a limited value range includes: It is determined whether a weighted average of differences between power values ​​of wireless communication signals at multiple designated locations and a preset power limit value is within a limited value range.

9. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 1, characterized in that: The multiple designated positions in the vehicle include the head position, waist position, armrest box position of the vehicle occupant, and the position where the wireless communication terminal is placed in the vehicle.

10. The method for evaluating and measuring the in-vehicle wireless communication performance of an intelligent connected vehicle according to claim 1, characterized in that: The limit value is ±3dBm or ±5dBm.

11. A device for evaluating and measuring the performance of wireless communication in an intelligent connected vehicle, characterized in that: include: A performance measurement data acquisition module is used to perform performance measurement of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle and obtain performance measurement data of the in-vehicle communication antenna of a single-unit intelligent network-connected vehicle; The wireless communication signal power value acquisition module is used to perform full-wave simulation based on the performance measurement data of the in-vehicle communication antenna of a single-level intelligent networked vehicle and the in-vehicle environment of the entire vehicle to obtain the wireless communication signal power values ​​at multiple specified locations in the vehicle; The wireless communication performance qualification judgment module is used to judge whether the difference between the wireless communication signal power value and the preset power limit value is within the limited value range. When the judgment is yes, it is determined that the wireless communication performance in the intelligent connected vehicle is qualified; when the judgment is no, it is determined that the wireless communication performance in the intelligent connected vehicle is unqualified.

12. The device for evaluating and measuring in-vehicle wireless communication performance for intelligent connected vehicles according to claim 11, characterized in that: The single-unit-level intelligent connected vehicle in-vehicle communication antenna refers to a vehicle-mounted antenna unit for in-vehicle communication that is not installed on the vehicle; The performance measurement data of the single-unit-level intelligent connected vehicle in-vehicle communication antenna includes equivalent current distribution, and amplitude and phase distribution of the tangential electric field.

13. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 11, characterized in that: The wireless communication signal power value acquisition module is specifically used for: Convert the format of the measurement result file corresponding to the performance measurement data and import it into the full-wave electromagnetic simulation software; Combined with the vehicle interior environment, full-wave simulation is performed based on full-wave electromagnetic simulation software to obtain the wireless communication signal power values ​​at multiple specified locations.

14. The device for evaluating and measuring in-vehicle wireless communication performance for intelligent connected vehicles according to claim 13, characterized in that: The measurement result file is placed at the actual installation position of the relevant antenna in the vehicle.

15. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 13, characterized in that: The complete vehicle includes the entire vehicle body structure; The wireless communication signal power value acquisition module is specifically used for: Setting the in-car environment according to the vehicle model, the in-car environment including the number and arrangement of people and seats, the number and placement of human models; Full-wave simulation is performed in combination with the set in-vehicle environment.

16. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 11, characterized in that: The wireless communication performance qualification judgment module is specifically used for: It is determined whether the differences between the wireless communication signal power values ​​at the plurality of designated locations and the preset power limit values ​​are all within a limited value range.

17. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 11, characterized in that: The wireless communication performance qualification judgment module is specifically used for: It is determined whether a linear average value of a difference between power values ​​of wireless communication signals at a plurality of designated locations and a preset power limit value is within a limited value range.

18. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 11, characterized in that: The wireless communication performance qualification judgment module is specifically used for: It is determined whether a weighted average of differences between power values ​​of wireless communication signals at multiple designated locations and a preset power limit value is within a limited value range.

19. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 11, characterized in that: The multiple designated positions in the vehicle include the head position, waist position, armrest box position of the vehicle occupant, and the position where the wireless communication terminal is placed in the vehicle.

20. The in-vehicle wireless communication performance evaluation and measurement device for intelligent connected vehicles according to claim 11, characterized in that: The limit value is ±3dBm or ±5dBm.

21. A computer 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 computer program, the in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles as described in any one of claims 1 to 10 is implemented.

22. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for evaluating and measuring the in-vehicle wireless communication performance for an intelligent connected vehicle according to any one of claims 1 to 10 is implemented.

23. A computer program product, characterized in that The computer program product includes a computer program, and when the computer program is executed by a processor, it implements the in-vehicle wireless communication performance evaluation and measurement method for intelligent connected vehicles as claimed in any one of claims 1 to 10.

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