Vehicle-mounted communication antenna radio frequency performance test method, device, equipment and medium

Abstract

The invention relates to a vehicle-mounted communication antenna radio frequency performance test method and device, equipment and a medium. The method comprises the following steps: acquiring first sensitivity of a terminal equipment communication antenna at a plurality of test point positions; wherein the plurality of test point locations comprise test point locations inside and outside a vehicle cabin; acquiring the air loss between the vehicle-mounted communication antenna and the terminal equipment communication antenna at each test point; determining a second sensitivity of the vehicle-mounted communication antenna relative to each test point according to the first sensitivity and the air loss; and evaluating the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity. According to the method, the air loss between the vehicle-mounted communication antenna and the terminal equipment communication antenna is measured and applied, so that the radio frequency performance of the vehicle-mounted communication antenna can be accurately evaluated, and the whole vehicle research and development and troubleshooting can be guided.

Description

Technical Field

[0001] The present disclosure relates to the field of antenna measurement technology, and in particular to a method, device, equipment, and medium for testing the radio frequency performance of an on-board communication antenna. Background Art

[0002] With the advancement of wireless communications and the demand for smart cockpit entertainment, more and more communication devices are being used in vehicles. These devices include cellular networks, GNSS (Global Navigation Satellite System) satellite positioning, WiFi (Wireless Fidelity), Bluetooth, and more. To ensure the RF performance of antennas in these devices, there is an urgent need for a test method that can accurately evaluate the RF performance of these antennas to guide vehicle development and troubleshooting. Summary of the Invention

[0003] To overcome the problems existing in the related art, the present disclosure provides a method, apparatus, device and medium for testing the radio frequency performance of an on-board communication antenna.

[0004] According to a first aspect of an embodiment of the present disclosure, a method for testing radio frequency performance of a vehicle-mounted communication antenna is provided, the method comprising the following steps:

[0005] Obtaining a first sensitivity of a communication antenna of a terminal device at a plurality of test points; wherein the plurality of test points include test points inside and outside a vehicle cabin;

[0006] Obtaining the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points;

[0007] Determining a second sensitivity of the vehicle-mounted communication antenna relative to each of the test points based on the first sensitivity and the air loss;

[0008] The radio frequency performance of the vehicle-mounted communication antenna is evaluated according to the first sensitivity and the second sensitivity.

[0009] In one embodiment of the present disclosure, the evaluating the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity includes:

[0010] determining, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points is abnormal, and generating a first communication result for each of the test points;

[0011] determining, based on the second sensitivity, whether communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each of the test points is abnormal, and generating a second communication result for each of the test points;

[0012] The radio frequency performance of the vehicle-mounted communication antenna is evaluated according to the plurality of first communication results and the plurality of second communication results.

[0013] In one embodiment of the present disclosure, determining whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point is abnormal based on the first sensitivity, and generating a first communication result for each test point, includes:

[0014] Obtaining a first transmission power of the vehicle-mounted communication antenna;

[0015] Determining a first power from the vehicle-mounted communication antenna to the terminal device communication antenna at each of the test points according to the first transmission power and the air loss;

[0016] The first power and the first sensitivity are compared, and a first communication result of each of the test points is generated.

[0017] In one embodiment of the present disclosure, determining whether communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each test point is abnormal based on the second sensitivity, and generating a second communication result for each test point, includes:

[0018] Obtaining a second transmission power of the communication antenna of the terminal device at each of the test points;

[0019] Determining a second power from the terminal device communication antenna to the vehicle-mounted communication antenna at each of the test points according to the second transmission power and the air loss;

[0020] The second power and the second sensitivity are compared, and a second communication result of each of the test points is generated.

[0021] In one embodiment of the present disclosure, the evaluating the radio frequency performance of the vehicle-mounted communication antenna according to the plurality of first communication results and the plurality of second communication results includes:

[0022] In response to the first communication result at the same test point being that the first power is greater than the first sensitivity, and the second result being that the second power is greater than the second sensitivity, the terminal device communication antenna and the vehicle-mounted communication antenna at the current test point can be normally connected.

[0023] In one embodiment of the present disclosure, obtaining the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points includes:

[0024] Obtaining a transmission coefficient between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points;

[0025] The air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points is determined based on the transmission coefficient.

[0026] In one embodiment of the present disclosure, before determining the second sensitivity of the vehicle communication antenna relative to each of the test points based on the first sensitivity and the air loss, the method further includes:

[0027] Obtaining a multiple of amplification for a signal received by a communication antenna of the terminal device;

[0028] The determining, based on the first sensitivity and the air loss, of the second sensitivity of the vehicle-mounted communication antenna relative to each of the test points includes:

[0029] The second sensitivity of the vehicle-mounted communication antenna relative to each of the test points is determined according to the first sensitivity, the air loss, and the multiple.

[0030] According to a second aspect of an embodiment of the present disclosure, a device for testing radio frequency performance of a vehicle-mounted communication antenna is provided, the device comprising:

[0031] A first acquisition module is configured to acquire a first sensitivity of a communication antenna of a terminal device at a plurality of test points; wherein the plurality of test points include test points inside and outside a vehicle cabin;

[0032] A second acquisition module is used to obtain the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points;

[0033] a determination module, configured to determine a second sensitivity of the vehicle-mounted communication antenna relative to each of the test points based on the first sensitivity and the air loss;

[0034] An evaluation module is used to evaluate the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity.

[0035] In one embodiment of the present disclosure, the evaluation module includes:

[0036] a first generating unit, configured to determine, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points is abnormal, and generate a first communication result for each of the test points;

[0037] a second generating unit, configured to determine, based on the second sensitivity, whether the communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each of the test points is abnormal, and generate a second communication result for each of the test points;

[0038] An evaluation unit is configured to evaluate the radio frequency performance of the vehicle-mounted communication antenna according to the plurality of first communication results and the plurality of second communication results.

[0039] In one embodiment of the present disclosure, the first generating unit is configured to determine, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point is abnormal, and generate a first communication result for each test point, including:

[0040] Obtaining a first transmission power of the vehicle-mounted communication antenna;

[0041] Determining a first power from the vehicle-mounted communication antenna to the terminal device communication antenna at each of the test points according to the first transmission power and the air loss;

[0042] The first power and the first sensitivity are compared, and a first communication result of each of the test points is generated.

[0043] In one embodiment of the present disclosure, the second generation unit is configured to determine, based on the second sensitivity, whether communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each test point is abnormal, and generate a second communication result for each test point, including:

[0044] Obtaining a second transmission power of the communication antenna of the terminal device at each of the test points;

[0045] Determining a second power from the terminal device communication antenna to the vehicle-mounted communication antenna at each of the test points according to the second transmission power and the air loss;

[0046] The second power and the second sensitivity are compared, and a second communication result of each of the test points is generated.

[0047] In one embodiment of the present disclosure, the evaluation unit is configured to evaluate the radio frequency performance of the vehicle-mounted communication antenna based on the plurality of first communication results and the plurality of second communication results, including:

[0048] In response to the first communication result at the same test point being that the first power is greater than the first sensitivity, and the second result being that the second power is greater than the second sensitivity, the terminal device communication antenna and the vehicle-mounted communication antenna at the current test point can be normally connected.

[0049] In one embodiment of the present disclosure, the second acquisition module includes:

[0050] an acquiring unit, configured to acquire a transmission coefficient between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points;

[0051] A determination unit is used to determine the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points according to the transmission coefficient.

[0052] In one embodiment of the present disclosure, the apparatus further includes:

[0053] A third acquisition module is used to obtain a multiple of amplification of the signal received by the communication antenna of the terminal device;

[0054] The determining module is configured to determine the second sensitivity of the vehicle-mounted communication antenna relative to each of the test points based on the first sensitivity and the air loss, including:

[0055] The second sensitivity of the vehicle-mounted communication antenna relative to each of the test points is determined according to the first sensitivity, the air loss, and the multiple.

[0056] According to a third aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0057] at least one processor; and

[0058] a memory communicatively connected to the at least one processor; wherein,

[0059] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned vehicle communication antenna radio frequency performance testing method.

[0060] According to a fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored. When the program instructions are executed by a processor, the above-mentioned vehicle-mounted communication antenna radio frequency performance testing method is implemented.

[0061] According to a fifth aspect of an embodiment of the present disclosure, a computer program product is provided, including a computer program, which implements the above-mentioned vehicle-mounted communication antenna radio frequency performance testing method when executed by a processor.

[0062] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0063] In an embodiment of the present disclosure, a first sensitivity of a terminal device's communication antenna is obtained at multiple test points, including test points inside and outside the vehicle cabin. The air loss between the vehicle's communication antenna and the terminal device's communication antenna at each test point is obtained. Based on the first sensitivity and the air loss, a second sensitivity of the vehicle's communication antenna relative to each test point is determined. Based on the first sensitivity and the air loss, the RF performance of the vehicle's communication antenna is evaluated. Thus, by measuring and applying the air loss between the vehicle's communication antenna and the terminal device's communication antenna, this method can more accurately evaluate the RF performance of the vehicle's communication antenna, thereby guiding vehicle development and troubleshooting.

[0064] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0066] Figure 1 is a flow chart of a method for testing radio frequency performance of an on-vehicle communication antenna according to an embodiment of the present disclosure;

[0067] Figure 2 is a schematic diagram of using a comprehensive tester to test the radio frequency performance of a vehicle-mounted communication antenna according to an embodiment of the present disclosure;

[0068] Figure 3 1 is a schematic diagram of using a vector network to perform radio frequency performance testing of an on-vehicle communication antenna according to an embodiment of the present disclosure;

[0069] Figure 4 4 is a block diagram of a vehicle-mounted communication antenna radio frequency performance testing device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0070] Some embodiments of the present disclosure will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. Various changes, modifications and equivalents of the methods, devices and / or systems described herein will become apparent after understanding the present disclosure. For example, the order of operations described herein is merely an example and is not limited to those orders set forth herein, but may be changed as becomes apparent after understanding the present disclosure, except for operations that must be performed in a specific order. In addition, for the sake of clarity and brevity, descriptions of features known in the art may be omitted.

[0071] The embodiments described in the following examples of the present disclosure do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0072] The following describes, with reference to the accompanying drawings, a method, apparatus, device, and medium for testing the radio frequency performance of an on-board communication antenna proposed in the embodiments of the present disclosure.

[0073] In related technology, to ensure the RF performance of in-vehicle communication equipment, an increasing number of vehicles are undergoing OTA (Over-The-Air) testing of vehicle antennas. These OTA tests primarily include TRP (Total Radiated Power) and TIS (Total Radiated Power) testing. TRP is used to evaluate the antenna's transmit power, or the power radiated into space, while TIS is used to assess the antenna's receive sensitivity, or the minimum receivable signal strength. The technical solution involves measuring the power in all directions across the vehicle's spherical surface to obtain data for the entire sphere, ultimately yielding TRP and TIS values. However, this solution only tests the antenna's communication performance in all directions within the vehicle's upper hemisphere. It cannot test the antenna's RF performance at various locations within the cabin, nor can it test the antenna's signal coverage within the cabin. This approach may not provide guidance for addressing communication antenna signal coverage issues encountered during vehicle development.

[0074] To this end, the present disclosure proposes a new method for testing the RF performance of vehicle-mounted communication antennas. By measuring and applying the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna, this method can more accurately evaluate the RF performance of the vehicle-mounted communication antenna, so as to guide vehicle development and problem troubleshooting.

[0075] Figure 1 It is a flow chart of a method for testing the radio frequency performance of a vehicle-mounted communication antenna according to an embodiment of the present disclosure.

[0076] like Figure 1 As shown, the vehicle-mounted communication antenna radio frequency performance testing method of the embodiment of the present disclosure includes:

[0077] S1, obtaining a first sensitivity E' of a terminal device's communication antenna at multiple test points, wherein the multiple test points include test points inside and outside a vehicle cabin. Locations inside the vehicle cabin may include a driver's seat, a front passenger seat, a left passenger seat, a right passenger seat, and a center console armrest.

[0078] For example, the first sensitivity E' of the communication antenna of the terminal device at multiple test points may be measured by a comprehensive tester.

[0079] like Figure 2 As shown, for vehicle-mounted communication equipment with a non-detachable communication antenna, the first antenna can be placed at the position of the communication antenna in the vehicle-mounted communication equipment, and the first antenna is connected to the comprehensive tester through a first cable. Alternatively, for vehicle-mounted communication equipment with a detachable communication antenna, the first cable can be directly connected to the port of the communication antenna in the vehicle-mounted communication equipment and the comprehensive tester. In addition, the second antenna is connected to the comprehensive tester through a second cable. After the connection is completed, the comprehensive tester is used to control the vehicle-mounted communication equipment through the first antenna, set the required signal and power to ensure a stable connection between the first antenna and the vehicle-mounted communication equipment, perform necessary calibration, and place the second antenna at various test points inside the vehicle cabin for sensitivity testing. During the test, the comprehensive tester will record the antenna sensitivity of the second antenna at each test point, and the first sensitivity E' of the terminal device communication antenna at multiple test points can be obtained. The sensitivity test can refer to the standards established by the Cellular Telecommunications and Internet Association (CTIA). Antenna sensitivity refers to the power output when the bit error rate (BER) of the received spatial signal is 2.44%. The BER or throughput test can be set using a comprehensive tester based on actual needs.

[0080] It should be noted that, in order to improve the accuracy of the antenna sensitivity at each test point, multiple tests may be performed on the same test point and an average value may be taken.

[0081] S2, obtaining the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point.

[0082] like Figure 3As shown, for on-board communication devices with a non-removable communication antenna, the first antenna can be placed in the vehicle communication device's communication antenna location and connected to the VNA (i.e., vector network analyzer) via a first cable. Alternatively, for on-board communication devices with a removable communication antenna, the first cable can be directly connected to the vehicle communication device's communication antenna port and the VNA. Furthermore, the second antenna is connected to the VNA via a second cable. After the connection is complete, the first line loss L1 of the first cable and the second line loss L2 of the second cable are measured via the VNA. The operating frequency of the VNA is then adjusted, and the transmission coefficient between the first and second antennas is measured and recorded. This measured value is recorded as the total loop loss, L'. After measuring the first line loss L1, the second line loss L2, and the total loop loss L' via the VNA, the air loss L between the on-board communication antenna and the terminal device communication antenna at each test point can be calculated as L' = L' - (L1 + L2 + G1 + G2), where G1 is the gain of the first antenna and G2 is the gain of the second antenna, both of which are known quantities.

[0083] S3, determining the second sensitivity E of the vehicle-mounted communication antenna relative to each test point based on the first sensitivity E' and the air loss L. Wherein, E=E'-L-L2.

[0084] After the first sensitivity E' is measured in step S1 and the air loss L and the second line loss L2 are measured in step S2, the second sensitivity E=E'-L-L2 of the vehicle communication antenna relative to each test point is calculated.

[0085] It should be noted that when measuring the first sensitivity E' in step S1, a first amplifier may be added between the first antenna and the integrated tester, and a second amplifier may be added between the second antenna and the integrated tester. The functions of the first amplifier and the second amplifier are to amplify the signal and compensate for the air loss L. In one embodiment of the present disclosure, before determining the second sensitivity E of the vehicle communication antenna relative to each test point based on the first sensitivity E' and the air loss L, it also includes: obtaining the multiple A2 for amplifying the signal received by the terminal device communication antenna; wherein, determining the second sensitivity E of the vehicle communication antenna relative to each test point based on the first sensitivity E' and the air loss L includes: determining the second sensitivity E of the vehicle communication antenna relative to each test point based on the first sensitivity E', the air loss L and the multiple A2, and determining the second sensitivity E of the vehicle communication antenna relative to each test point = E'-L-L2+A2.

[0086] The above measurement results can be reflected in the following Table 1, which can be stored so that it can be directly called when used later.

[0087] Table 1

[0088] Test Area Test points First sensitivity E' Loop loss L' Empty loss L Second sensitivity E Main driver First point E1’ L1’ L1 E1 co-pilot Second point E2’ L2’ L2 E2 Left passenger The third point E3’ L3’ L3 E3 Right passenger Fourth point E4’ L4’ L4 E4 Central control armrest Fifth point E5’ L5’ L5 E5 … … … … … …

[0089] Among them, when the test area is the main driving area, the test point is the first point, and the obtained first sensitivity E'=E1', loop loss L'=L1', air loss L=L1, and second sensitivity E=E1; when the test area is the co-pilot area, the test point is the second point, and the obtained first sensitivity E'=E2', loop loss L'=L2', air loss L=L2, and second sensitivity E=E2; when the test area is the left passenger area, the test point is the third point, and the obtained first sensitivity E '=E3', loop loss L'=L3', air loss L=L3, and second sensitivity E=E3; when the test area is the right passenger area, the test point is the fourth point, and the first sensitivity E'=E4', loop loss L'=L4', air loss L=L4, and second sensitivity E=E4 are obtained; when the test area is the center console armrest area, the test point is the fifth point, and the first sensitivity E'=E5', loop loss L'=L5', air loss L=L5, and second sensitivity E=E5 are obtained. Of course, the first sensitivity E', loop loss L', air loss L, and second sensitivity E can also be measured at other locations inside the vehicle cabin, which will not be repeated here.

[0090] S4, evaluating the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity.

[0091] In step S4, for different test points, the first sensitivity and second sensitivity corresponding to each test point can be obtained, and then, based on the first sensitivity, it is determined whether the communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point is abnormal, and a first communication result for each test point is generated. And, based on the second sensitivity, it is determined whether the communication between the terminal device communication antenna at each test point and the vehicle-mounted communication antenna is abnormal, and a second communication result for each test point is generated. Then, based on multiple first communication results and multiple second communication results, the RF performance of the vehicle-mounted communication antenna is evaluated.

[0092] In one embodiment of the present disclosure, based on the first sensitivity, it is determined whether the communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point is abnormal, and a first communication result for each test point is generated, including: obtaining the first transmission power of the vehicle-mounted communication antenna; determining the first power of the vehicle-mounted communication antenna to the terminal device communication antenna at each test point based on the first transmission power and the air loss; comparing the first power and the first sensitivity, and generating the first communication result for each test point.

[0093] For example, for the main driving area, the first sensitivity E'=E1' and the air loss L=L1. The first transmission power of the vehicle communication antenna is P1; based on the first transmission power P1 and the air loss L1, the first power P of the terminal device communication antenna from the vehicle communication antenna to the test point is determined. DL=P1-L1, if P DL >E', it means that there is no problem with the downlink communication, and the vehicle communication antenna can be normally connected to the terminal device communication antenna. Otherwise, the connection will be stuck or even disconnected, which requires optimization.

[0094] In one embodiment of the present disclosure, based on the second sensitivity E, it is determined whether the communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each test point is abnormal, and a second communication result for each test point is generated, including: obtaining the second transmission power of the terminal device communication antenna at each test point; determining the second power from the terminal device communication antenna to the vehicle-mounted communication antenna at each test point based on the second transmission power and the air loss; comparing the second power and the second sensitivity E, and generating a second communication result for each test point.

[0095] For example, for the main driving area, the second sensitivity E = E1 and the air loss L = L1. The second transmission power of the terminal device communication antenna at the first test point is P2; based on the second transmission power P2 and the air loss L1, the second power P from the terminal device communication antenna to the vehicle communication antenna at each test point is determined. UL =P2-L, if P UL >E, it means that there is no problem with the uplink communication, and the terminal device communication antenna and the vehicle communication antenna can be connected normally. Otherwise, the connection will be stuck or even disconnected, and optimization is needed.

[0096] In one embodiment of the present disclosure, the radio frequency performance of the vehicle-mounted communication antenna is evaluated based on multiple first communication results and multiple second communication results, including: in response to the first communication result at the same test point being that the first power is greater than the first sensitivity, and the second result being that the second power is greater than the second sensitivity, the terminal device communication antenna at the current test point and the vehicle-mounted communication antenna can be normally connected.

[0097] That is to say, for the same test point, if P DL Greater than the corresponding first sensitivity E' and P UL If it is greater than the corresponding second sensitivity E, it means that the terminal device communication antenna and the vehicle communication antenna at the current test point can be connected normally. Otherwise, the connection will be stuck or even disconnected, and optimization is needed.

[0098] The RF performance testing method for vehicle-mounted communication antennas according to the disclosed embodiment has the following advantages: the interior and exterior of the vehicle cabin can be tested to evaluate the signal coverage and quality of the antenna inside and outside the cabin; it is closer to actual application scenarios, and the test results are more meaningful; the test is simple, and the experimenter can operate it easily and quickly; there are basically no requirements for the site, and an open area can be used; the test time is short, for example, the test time for a single test point is 2-5 minutes; the test is flexible, and the test plan can be flexibly modified according to actual needs.

[0099] In summary, according to the RF performance testing method for an on-board communication antenna according to the embodiment of the present disclosure, the first sensitivity of the terminal device communication antenna at multiple test points is first obtained, including test points inside and outside the vehicle cabin, and the air loss between the on-board communication antenna and the terminal device communication antenna at each test point is obtained. Then, based on the first sensitivity and the air loss, the second sensitivity of the on-board communication antenna relative to each test point is determined. Finally, the RF performance of the on-board communication antenna is evaluated based on the first sensitivity and the second sensitivity. Therefore, by measuring and applying the air loss between the on-board communication antenna and the terminal device communication antenna, this method can more accurately evaluate the RF performance of the on-board communication antenna, thereby guiding vehicle development and problem troubleshooting.

[0100] Figure 4 4 is a block diagram of a vehicle-mounted communication antenna radio frequency performance testing device according to an embodiment of the present disclosure.

[0101] like Figure 4 As shown, the vehicle-mounted communication antenna radio frequency performance testing device 400 of the embodiment of the present disclosure includes:

[0102] A first acquisition module 410 is configured to acquire a first sensitivity of a communication antenna of a terminal device at a plurality of test points, wherein the plurality of test points include test points inside and outside a vehicle cabin;

[0103] The second acquisition module 420 is used to obtain the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point;

[0104] A determination module 430 is configured to determine a second sensitivity of the vehicle-mounted communication antenna relative to each test point based on the first sensitivity and the air loss;

[0105] The evaluation module 440 is configured to evaluate the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity.

[0106] In one embodiment of the present disclosure, the evaluation module 440 includes:

[0107] A first generating unit is configured to determine, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point is abnormal, and generate a first communication result for each test point;

[0108] A second generating unit is configured to determine whether the communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each test point is abnormal based on the second sensitivity, and generate a second communication result for each test point;

[0109] The evaluation unit is configured to evaluate the radio frequency performance of the vehicle-mounted communication antenna according to the plurality of first communication results and the plurality of second communication results.

[0110] In one embodiment of the present disclosure, the first generating unit is configured to determine, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point is abnormal, and generate a first communication result for each test point, including:

[0111] Obtaining a first transmission power of the vehicle-mounted communication antenna;

[0112] Determine the first power of the communication antenna of the terminal device at each test point from the vehicle communication antenna to the communication antenna of the terminal device at each test point according to the first transmission power and the air loss;

[0113] The first power and the first sensitivity are compared, and a first communication result of each test point is generated.

[0114] In one embodiment of the present disclosure, the second generating unit is configured to determine whether communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each test point is abnormal based on the second sensitivity, and generate a second communication result for each test point, including:

[0115] Obtaining the second transmission power of the terminal device communication antenna at each test point;

[0116] Determine the second power from the terminal device communication antenna to the vehicle-mounted communication antenna at each test point based on the second transmission power and the air loss;

[0117] The second power and the second sensitivity are compared, and a second communication result of each test point is generated.

[0118] In one embodiment of the present disclosure, an evaluation unit is configured to evaluate the radio frequency performance of a vehicle-mounted communication antenna based on a plurality of first communication results and a plurality of second communication results, including:

[0119] In response to the first communication result at the same test point being that the first power is greater than the first sensitivity, and the second result being that the second power is greater than the second sensitivity, the terminal device communication antenna and the vehicle-mounted communication antenna at the current test point can be normally connected.

[0120] In one embodiment of the present disclosure, the second acquisition module 420 includes:

[0121] An acquisition unit, configured to acquire a transmission coefficient between the vehicle-mounted communication antenna and the communication antenna of the terminal device at each test point;

[0122] The determination unit is used to determine the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point according to the transmission coefficient.

[0123] In one embodiment of the present disclosure, the apparatus further includes:

[0124] A third acquisition module is used to obtain a multiple of amplification of the signal received by the communication antenna of the terminal device;

[0125] The determining module 430 is configured to determine the second sensitivity of the vehicle-mounted communication antenna relative to each test point based on the first sensitivity and the air loss, including:

[0126] The second sensitivity of the vehicle-mounted communication antenna relative to each test point is determined according to the first sensitivity, the air loss and the multiple.

[0127] It should be noted that for details not disclosed in the vehicle-mounted communication antenna RF performance testing device of the embodiment of the present disclosure, please refer to the details disclosed in the vehicle-mounted communication antenna RF performance testing device of the embodiment of the present disclosure, and the details will not be repeated here.

[0128] According to the vehicle-mounted communication antenna RF performance testing device of the embodiment of the present disclosure, a first acquisition module is used to obtain the first sensitivity of the terminal device communication antenna at multiple test points, wherein the multiple test points include test points inside and outside the vehicle cabin. A second acquisition module is used to obtain the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each test point. A determination module is used to determine the second sensitivity of the vehicle-mounted communication antenna relative to each test point based on the first sensitivity and the air loss. An evaluation module is used to evaluate the RF performance of the vehicle-mounted communication antenna based on the first sensitivity and the second sensitivity. Thus, by measuring and applying the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna, the device can more accurately evaluate the RF performance of the vehicle-mounted communication antenna, thereby guiding vehicle development and problem troubleshooting.

[0129] The present disclosure also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the above-mentioned vehicle-mounted communication antenna radio frequency performance test method.

[0130] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon. When the program instructions are executed by a processor, the vehicle-mounted communication antenna radio frequency performance testing method provided by the present disclosure is implemented.

[0131] The present disclosure also provides a computer program product, including a computer program, which, when executed by a processor, implements the vehicle-mounted communication antenna radio frequency performance testing method provided by the present disclosure.

[0132] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. 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, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0133] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0134] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0135] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0136] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0137] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0138] In addition, the functional units in the various embodiments of the present disclosure may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0139] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. A person of ordinary skill in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for testing the radio frequency performance of a vehicle-mounted communication antenna, characterized in that: include: Obtaining a first sensitivity of a communication antenna of a terminal device at a plurality of test points; wherein the plurality of test points include test points inside and outside a vehicle cabin; Obtaining the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points; Determining a second sensitivity of the vehicle-mounted communication antenna relative to each of the test points based on the first sensitivity and the air loss; The radio frequency performance of the vehicle-mounted communication antenna is evaluated according to the first sensitivity and the second sensitivity.

2. The method according to claim 1, characterized in that The evaluating the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity includes: determining, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points is abnormal, and generating a first communication result for each of the test points; determining, based on the second sensitivity, whether communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each of the test points is abnormal, and generating a second communication result for each of the test points; The radio frequency performance of the vehicle-mounted communication antenna is evaluated according to the plurality of first communication results and the plurality of second communication results.

3. The method according to claim 2, characterized in that The determining, based on the first sensitivity, whether communication between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points is abnormal, and generating a first communication result for each of the test points includes: Obtaining a first transmission power of the vehicle-mounted communication antenna; Determining a first power from the vehicle-mounted communication antenna to the terminal device communication antenna at each of the test points according to the first transmission power and the air loss; The first power and the first sensitivity are compared, and a first communication result of each of the test points is generated.

4. The method according to claim 2, characterized in that The determining, based on the second sensitivity, whether communication between the terminal device communication antenna and the vehicle-mounted communication antenna at each of the test points is abnormal, and generating a second communication result for each of the test points includes: Obtaining a second transmission power of the communication antenna of the terminal device at each of the test points; Determining a second power from the terminal device communication antenna to the vehicle-mounted communication antenna at each of the test points according to the second transmission power and the air loss; The second power and the second sensitivity are compared, and a second communication result of each of the test points is generated.

5. The method according to claim 2, characterized in that The evaluating the radio frequency performance of the vehicle-mounted communication antenna according to the plurality of first communication results and the plurality of second communication results includes: In response to the first communication result at the same test point being that the first power is greater than the first sensitivity, and the second result being that the second power is greater than the second sensitivity, the terminal device communication antenna and the vehicle-mounted communication antenna at the current test point can be normally connected.

6. The method according to claim 1, characterized in that The obtaining of the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points includes: Obtaining a transmission coefficient between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points; The air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points is determined based on the transmission coefficient.

7. The method according to claim 1, characterized in that Before determining the second sensitivity of the vehicle-mounted communication antenna relative to each of the test points based on the first sensitivity and the air loss, the method further includes: Obtaining a multiple of amplification for a signal received by a communication antenna of the terminal device; The determining, based on the first sensitivity and the air loss, of the second sensitivity E of the vehicle-mounted communication antenna relative to each of the test points includes: The second sensitivity of the vehicle-mounted communication antenna relative to each of the test points is determined according to the first sensitivity, the air loss, and the multiple.

8. A vehicle-mounted communication antenna radio frequency performance test device, characterized in that: include: A first acquisition module is configured to acquire a first sensitivity of a communication antenna of a terminal device at a plurality of test points; wherein the plurality of test points include test points inside and outside a vehicle cabin; A second acquisition module is used to obtain the air loss between the vehicle-mounted communication antenna and the terminal device communication antenna at each of the test points; a determination module, configured to determine a second sensitivity of the vehicle-mounted communication antenna relative to each of the test points based on the first sensitivity and the air loss; An evaluation module is used to evaluate the radio frequency performance of the vehicle-mounted communication antenna according to the first sensitivity and the second sensitivity.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle communication antenna radio frequency performance testing method according to any one of claims 1 to 7.

10. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the program instructions are executed by a processor, the vehicle-mounted communication antenna radio frequency performance testing method described in any one of claims 1-7 is implemented.

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