A method, device, equipment and medium for testing the wave permeability of an antenna cover of a vehicle-mounted mobile base station

Abstract

The application discloses a kind of antenna cover wave permeability test method, device, equipment and medium of vehicle mobile base station, applied to rail transit technical field, for different preset scene according to the rotation angular velocity curve of rotation angular velocity variation with time Control turntable drives millimeter wave vehicle mobile base station, radio frequency transmitting end and antenna cover to be tested to rotate;Rotation angular velocity curve is set in advance based on the actual running speed curve of vehicle under preset scene;In the process of turntable rotation, the transmission signal intensity of radio frequency transmitting end and the receiving signal intensity of ground base station are acquired at each time;Based on each transmission signal intensity and corresponding receiving signal intensity, actual wave permeability data varying with rotation angular velocity under preset scene is obtained;According to standard wave permeability data varying with rotation angular velocity under each preset scene and corresponding actual wave permeability data, whether the wave permeability of antenna cover to be tested meets wave permeability requirement is determined;It can improve the test accuracy of antenna cover.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a method, apparatus, equipment, and computer-readable storage medium for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station. Background Technology

[0002] The high-speed maglev millimeter-wave wireless communication system is the only means of achieving vehicle-to-ground communication in a high-speed maglev system. The millimeter-wave vehicle-mounted mobile base station consists of an radome, vehicle-mounted antenna array, vehicle-mounted transceiver, modulator / demodulator, etc. Millimeter-wave radar is characterized by high resolution, compact size, and flexibility, and the radome is part of its sealed design. Besides protecting the antenna, the radome also reduces wind resistance. Therefore, the radome is a crucial component of the antenna, directly affecting its technical specifications. Due to the short wavelength and high loss of millimeter waves in the medium, the dimensional accuracy requirements for the radome are high; therefore, the transmittance (i.e., power transfer coefficient) of the radome is of great significance to the millimeter-wave wireless communication system.

[0003] In existing technologies, the transmittance of radomes is usually tested on the ground. This can only test the transmittance of a single reference surface of the radome and cannot simulate the electromagnetic beams between the on-board mobile base station and the ground base station passing through different reference surfaces of the radome when the train is actually running and passing over the ground base station. This results in inaccurate transmittance tests of the radome.

[0004] Therefore, improving the accuracy of radome transmittance testing has become a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a method, apparatus, device, and computer-readable storage medium for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, which can improve the accuracy of antenna transmittance detection during use.

[0006] To address the aforementioned technical problems, the embodiments of the present invention provide the following technical solutions:

[0007] This invention provides a method for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, comprising:

[0008] For different preset scenarios, the turntable is controlled to rotate according to the rotational angular velocity curve that changes with time; wherein, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario; the turntable is equipped with a millimeter-wave vehicle-mounted mobile base station and an RF transmitter and an antenna cover to be tested mounted on the millimeter-wave vehicle-mounted mobile base station.

[0009] During the rotation of the turntable, the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station are acquired at various times; the ground base station is located at a preset position on the ground.

[0010] Based on the transmitted signal strength and the corresponding received signal strength, the actual transmittance data as a function of rotational angular velocity under the preset scenario is obtained.

[0011] Based on the standard transmittance data and the corresponding actual transmittance data of the radome under various preset scenarios as a function of rotational angular velocity, it is determined whether the transmittance of the radome under test meets the transmittance requirements.

[0012] In one embodiment, determining whether the transmittance of the radome under test meets the transmittance requirements based on standard transmittance data varying with rotational angular velocity under various preset scenarios and the corresponding actual transmittance data includes:

[0013] For each preset scenario, the actual transmittance data of the preset scenario as a function of rotational angular velocity is compared with the pre-acquired standard transmittance data.

[0014] If the actual transmittance value at each moment is greater than or equal to the standard transmittance value at the corresponding moment, it is determined that the actual transmittance data under the preset scenario meets the transmittance requirements of the preset scenario.

[0015] If the actual transmittance data for each preset scenario meets the transmittance requirements of the corresponding preset scenario, then the transmittance of the radome under test is determined to meet the transmittance requirements.

[0016] In one implementation, it further includes:

[0017] If any of the actual transmittance values ​​at any given time are less than the standard transmittance value at the corresponding time, it is determined that the actual transmittance data under the preset scenario does not meet the transmittance requirements of the preset scenario.

[0018] If the actual transmittance data corresponding to at least one preset scenario does not meet the transmittance requirement of the preset scenario, it is determined that the transmittance of the radome under test does not meet the transmittance requirement.

[0019] In one embodiment, after determining that the transmittance of the radome under test does not meet the transmittance requirement, the method further includes:

[0020] The moment when the actual transmittance value is less than the standard transmittance value at the corresponding moment is considered an abnormal moment.

[0021] The corresponding rotation angle is determined based on the abnormal moment.

[0022] Based on the initial position of the radome under test and the rotation angle, the range of locations on the radome under test where the transmittance is abnormal is determined.

[0023] In one implementation, the preset scenarios include a constant speed driving scenario and a variable speed driving scenario.

[0024] In one embodiment, when the preset scenario is a constant speed driving scenario, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario, including:

[0025] Pre-obtain the signal coverage area of ​​the ground base station and the actual constant speed of the vehicle;

[0026] Based on the signal coverage area, the actual constant speed of the vehicle, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the constant speed driving scenario is obtained.

[0027] When the preset scenario is a variable-speed driving scenario, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario, including:

[0028] Pre-obtain the signal coverage area of ​​the ground base station and the actual vehicle acceleration;

[0029] Based on the signal coverage area, the actual vehicle acceleration, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the variable speed driving scenario is obtained.

[0030] In one embodiment, the turntable is further provided with a mounting base, and the millimeter-wave vehicle-mounted mobile base station on the turntable is mounted on the mounting base.

[0031] Another aspect of the present invention provides a device for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, comprising:

[0032] The control module is used to control the rotation of the turntable according to the rotational angular velocity curve that changes with time for different preset scenarios; wherein, the rotational angular velocity curve is preset based on the actual operating speed curve of the vehicle under the preset scenario; the turntable is equipped with a millimeter-wave vehicle-mounted mobile base station and an RF transmitter and an antenna cover to be tested mounted on the millimeter-wave vehicle-mounted mobile base station.

[0033] The acquisition module is used to acquire the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station at various times during the rotation of the turntable; the ground base station is set at a preset position on the ground.

[0034] The first determining module is used to obtain the actual transmittance data as a function of rotational angular velocity under the preset scenario based on the strength of each transmitted signal and the corresponding received signal strength.

[0035] The second determining module is used to determine whether the transmittance of the radome under test meets the transmittance requirements based on the standard transmittance data and the corresponding actual transmittance data that vary with rotational angular velocity under various preset scenarios.

[0036] In another aspect, the present invention provides a device for testing the transmittance of an antenna radome of a vehicle-mounted mobile base station, comprising a ground-based simulated base station set at a preset location on the ground, a turntable, a millimeter-wave vehicle-mounted mobile base station set on the turntable, a radio frequency transmitter, a memory, and a processor set on the millimeter-wave vehicle-mounted mobile base station, wherein the antenna radome to be tested is used to cover the millimeter-wave vehicle-mounted mobile base station.

[0037] The memory is used to store computer programs;

[0038] The processor is used to execute the computer program to implement the steps of the antenna transmittance test method for the vehicle-mounted mobile base station described above.

[0039] In another aspect, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described method for testing the transmittance of the radome of a vehicle-mounted mobile base station.

[0040] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0041] This invention provides a method for testing the transmittance of an radome for a vehicle-mounted mobile base station, comprising: controlling a turntable to rotate according to a rotational angular velocity curve that varies with time for different preset scenarios; wherein the rotational angular velocity curve is preset based on the actual operating speed curve of the vehicle under the preset scenario; a millimeter-wave vehicle-mounted mobile base station, an RF transmitter mounted on the millimeter-wave vehicle-mounted mobile base station, and an radome to be tested are mounted on the turntable; during the rotation of the turntable, the transmitted signal strength of the RF transmitter and the received signal strength of the ground base station are acquired at various times; the ground base station is located at a preset position on the ground; based on the transmitted signal strength and the corresponding received signal strength, the actual transmittance data that varies with rotational angular velocity under the preset scenario is obtained; based on the standard transmittance data that varies with rotational angular velocity under each preset scenario and the corresponding actual transmittance data, it is determined whether the transmittance of the radome to be tested meets the transmittance requirements.

[0042] Therefore, this application sets the millimeter-wave vehicle-mounted base station on a rotating turntable, and pre-determines the rotational angular velocity curve under the actual operating speed curve of the vehicle in the preset scenario. The turntable is then controlled to rotate according to the rotational angular velocity curve. During the rotation, the rotational angular velocity of the millimeter-wave vehicle-mounted mobile base station, which rotates with the turntable, also changes with the rotational angular velocity curve, thereby simulating the vehicle running according to the corresponding actual operating speed curve under the preset scenario. During the rotation of the turntable, the millimeter-wave signal emitted by the radio frequency transmitter on the millimeter-wave vehicle-mounted mobile base station is transmitted to the ground base station through the radome under test. The ground base station receives the corresponding millimeter-wave signal. Based on the transmitted signal strength emitted by the radio frequency transmitter and the received signal strength received by the ground base station at each moment, the corresponding actual transmittance data can be obtained. Based on the standard transmittance data changing with the rotational angular velocity under the preset scenario and the actual transmittance data, it can be determined whether the transmittance of the radome under test meets the transmittance requirements. This application can simulate the situation where the electromagnetic beam is emitted through different reference surfaces of the radome when the train actually passes through the ground station, thereby improving the accuracy of radome transmittance detection.

[0043] Furthermore, the present invention also provides a corresponding implementation device, electronic device, and computer-readable storage medium for the antenna transmittance testing method of vehicle-mounted mobile base stations, further making the method more practical. The device, equipment, and computer-readable storage medium have corresponding advantages. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the prior art and embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 A flowchart illustrating a method for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, provided in an embodiment of the present invention.

[0046] Figure 2 This is a schematic diagram of the structure of a millimeter-wave antenna radome and mounting base provided in an embodiment of the present invention;

[0047] Figure 3 A structural diagram of a millimeter-wave antenna and mounting base provided in an embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram showing the positions of a vehicle-mounted mobile base station and a ground base station, provided in an embodiment of the present invention.

[0049] Figure 5This is a schematic diagram of the structure of an antenna transmittance testing device for a vehicle-mounted mobile base station, provided in an embodiment of the present invention. Detailed Implementation

[0050] This invention provides a method, apparatus, device, and computer-readable storage medium for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, which can improve the accuracy of antenna transmittance detection during use.

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Please refer to Figure 1 , Figure 1 This is a flowchart illustrating a method for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, provided in an embodiment of the present invention. The method includes:

[0053] S110: For different preset scenarios, the turntable is controlled to rotate according to the rotational angular velocity curve that changes with time; wherein, the rotational angular velocity curve is preset based on the actual vehicle running speed curve under the preset scenario; the turntable is equipped with a millimeter-wave vehicle-mounted mobile base station and a radio frequency transmitter set on the millimeter-wave vehicle-mounted mobile base station;

[0054] It should be noted that the vehicle will be in different preset scenarios during actual operation. These preset scenarios are speed scenarios, such as constant speed driving scenarios and variable speed driving scenarios. During the actual operation of the vehicle, there are corresponding actual vehicle speed curves under different preset scenarios. Since the ground base station is set at a fixed position beside the track, and the distance between the antenna mast of the ground base station and the track is, for example, x, and the wireless signal coverage range is 2S, the angle between the millimeter-wave vehicle-mounted mobile base station set on the vehicle and the ground base station will also change during the vehicle's movement along the track. In this application, a device for setting the transmittance of the radome of the vehicle-mounted mobile base station can be set. This testing device includes a turntable on which the millimeter-wave vehicle-mounted mobile base station is set. The millimeter-wave vehicle-mounted mobile base station is equipped with an RF transmitter. A ground base station (including a ground antenna and a ground receiving terminal) is set at a preset position on the ground. By controlling the rotation of the turntable, the angle between the millimeter-wave vehicle-mounted base station on the turntable and the ground terminal can be changed. Therefore, in this application, the rotational angular velocity curve of the millimeter-wave vehicle-mounted mobile base station over time can be obtained in advance based on the actual vehicle speed curve under a certain scenario. This ensures that during the process of controlling the turntable rotation according to the rotational angular velocity curve under the preset scenario, the angle between the millimeter-wave vehicle-mounted mobile base station on the turntable and the ground base station remains consistent with the angle between the millimeter-wave vehicle-mounted mobile base station and the ground base station when the vehicle is actually traveling along the corresponding actual vehicle speed curve. In other words, in this application, during the process of controlling the turntable rotation according to the rotational angular velocity curve under the preset scenario, the speed of the millimeter-wave vehicle-mounted mobile base station during the actual vehicle operation can be simulated to change according to the corresponding actual vehicle speed curve.

[0055] It should be noted that, as Figures 2 to 3 As shown, where, Figure 2 This is a schematic diagram of the millimeter-wave antenna radome and mounting base. Figure 3 This is a structural diagram of the millimeter-wave antenna and its mounting base. To increase testing stability, a mounting base is also provided on the turntable, and the millimeter-wave vehicle-mounted mobile base station on the turntable is mounted on the mounting base.

[0056] S120: During the rotation of the turntable, the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station are acquired at various times; the ground base station is set at a preset position on the ground;

[0057] It is understandable that during the rotation of the turntable, the radio frequency transmitter on the millimeter-wave vehicle-mounted mobile base station on the turntable will continuously transmit signals. Since the angle between the millimeter-wave mobile base station and the ground base station changes as the turntable rotates, the signals transmitted by the radio frequency transmitter will be transmitted to the ground terminal through different reference planes of the antenna station. Therefore, it is possible to obtain the transmitted signal strength of the radio frequency transmitter on the millimeter-wave vehicle-mounted mobile base station at different times during the turntable rotation, as well as the received signal strength of the received signal at the ground terminal at each corresponding time.

[0058] S130: Based on the strength of each transmitted signal and the corresponding received signal strength, obtain the actual transmittance data as a function of rotational angular velocity under a preset scenario;

[0059] After obtaining the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station at each moment, the transmittance at that moment can be determined based on the transmitted and received signal strengths at each moment, thereby obtaining the actual transmittance data as the rotation angle changes under the preset scenario.

[0060] S140: Based on the standard transmittance data and the corresponding actual transmittance data of the radome under various preset scenarios as a function of rotational angular velocity, determine whether the transmittance of the radome under test meets the transmittance requirements.

[0061] It should be noted that, for different preset scenarios, by following steps S110 to S130, the actual transmittance data as a function of rotational angular velocity under that preset scenario can be obtained. Therefore, the actual transmittance data as a function of rotational angular velocity corresponding to each preset scenario can be obtained. In practical applications, for different preset scenarios, a standard radome can be tested in advance to obtain the standard transmittance data of the radome as a function of rotational angular velocity under that preset scenario. Based on the standard transmittance data as a function of rotational angular velocity under each preset scenario and the actual transmittance data obtained through steps S110 to S130 for the corresponding preset scenario, it can be determined whether the transmittance of the radome under test meets the transmittance requirements, thereby determining whether the quality of the radome under test is qualified.

[0062] In one embodiment, the process in S140 above, which determines whether the transmittance of the radome under test meets the transmittance requirements based on the standard transmittance data varying with rotational angular velocity under various preset scenarios and the corresponding actual transmittance data, may include:

[0063] For each preset scenario, the actual transmittance data of the preset scenario as the rotational angular velocity changes is compared with the pre-acquired standard transmittance data;

[0064] If the actual transmittance value at each moment is greater than or equal to the standard transmittance value at the corresponding moment, then the actual transmittance data under the preset scenario is determined to meet the transmittance requirements of the preset scenario.

[0065] If the actual transmittance data for each preset scenario meets the transmittance requirements of the corresponding preset scenario, then the transmittance of the radome under test is determined to meet the transmittance requirements.

[0066] Understandably, to improve the accuracy of radome testing, the actual transmittance data obtained in each preset scenario, varying with rotational angular velocity, can be compared with the standard transmittance data corresponding to that preset scenario. For example, the actual transmittance value at each moment can be compared with the corresponding standard transmittance value. If the actual transmittance value at each moment is not less than the corresponding standard transmittance value, it indicates that the actual transmittance data in that preset scenario meets the transmittance requirements. Following this method, it can be determined whether the actual transmittance data in each preset scenario meets the corresponding transmittance requirements. If the actual transmittance data in each preset scenario meets the corresponding transmittance requirements, it indicates that the transmittance of the radome under test meets the transmittance requirements, thus confirming that the quality of the radome under test meets the requirements.

[0067] In one embodiment, the method may further include:

[0068] If any of the actual transmittance values ​​at any given time are lower than the standard transmittance value at that time, it is determined that the actual transmittance data under the preset scenario does not meet the transmittance requirements of the preset scenario.

[0069] If the actual transmittance data corresponding to at least one preset scenario does not meet the transmittance requirement of the preset scenario, it is determined that the transmittance of the radome under test does not meet the transmittance requirement.

[0070] It should be noted that, for a more comprehensive analysis of the radome under test, if the actual transmittance value at any one or more moments within a preset scenario is lower than the standard transmittance value for that moment, it can be determined that the actual transmittance data for that preset scenario does not meet the transmittance requirements. If, within any preset scenario, the actual transmittance data for that preset scenario does not meet the transmittance requirements, it can be determined that the transmittance of the radome under test does not meet the transmittance requirements, and thus, the quality of the radome under test does not meet the quality requirements.

[0071] In one embodiment, after determining that the transmittance of the radome under test does not meet the transmittance requirement, the method may further include:

[0072] The moment when the actual transmittance value is less than the standard transmittance value at the corresponding moment is considered an abnormal moment.

[0073] The corresponding rotation angle is determined based on the abnormal moment;

[0074] Based on the initial position and rotation angle of the radome under test, the location range of the radome under test where the transmittance is abnormal is determined.

[0075] It should be noted that, in cases where quality requirements are not met, to further determine which specific area of ​​the radome under test exhibits abnormal transmittance, the abnormal moment when the actual transmittance value is lower than the standard transmittance value at the corresponding time can be identified from the set of actual transmittance data that does not meet the transmittance requirements of the preset scenario. Based on this abnormal moment, the rotation angle of the millimeter-wave vehicle-mounted mobile base station or the radome under test relative to the ground base station can be determined from the start of the turntable rotation to that abnormal moment. Furthermore, the position of the radome under test closest to the ground base station at the moment the turntable starts rotating can be determined as the initial position. Based on this initial position and rotation angle, the position of the radome under test closest to the ground base station at that abnormal moment can be determined. The area corresponding to the surface of the radome under test at this position can be determined as the location range where the transmittance is abnormal. This location range on the radome under test can then be calibrated and fed back to the manufacturer to accelerate the maintenance efficiency of the radome under test in the scenario.

[0076] The following describes the process of determining the rotational angular velocity curve under different preset scenarios:

[0077] Please refer to Figure 4 In practical applications, assume that the distance between the antenna mast on the ground base station and the track is x, the coverage range of the 38G wireless signal of the ground base station is 2S, and the train runs from point A to point C.

[0078] In one implementation, when the preset scenario is a constant speed driving scenario, the process of pre-setting the rotational angular velocity curve based on the actual vehicle speed curve under the preset scenario may include:

[0079] Pre-obtain the signal coverage area of ​​the ground base station and the actual constant speed of the vehicle;

[0080] Based on the signal coverage area, the actual constant speed of the vehicle, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the constant speed driving scenario is obtained.

[0081] It should be noted that if the actual constant speed of the vehicle is v, then the relationship between the signal coverage area S of the millimeter-wave terrestrial base station and v is S = v * t. Therefore, the angle θ′ between the millimeter-wave vehicle-mounted mobile base station and the terrestrial base station at point A is:

[0082]

[0083] The train travels from A to C within time t1. The angle θ1 between the millimeter-wave vehicle-mounted mobile base station and the ground base station is:

[0084]

[0085] Unlike a train, in a uniform speed operation scenario, the rotational angular velocity ω1 of a millimeter-wave vehicle-mounted mobile base station is as follows:

[0086] Based on this, we obtain ω1 corresponding to each moment, and thus construct the rotational angular velocity curve for the uniform running scenario based on ω1 corresponding to each moment.

[0087] In one implementation, when the preset scenario is a variable-speed driving scenario, the process of pre-setting the rotational angular velocity curve based on the actual vehicle speed curve under the preset scenario may include:

[0088] Pre-obtain the signal coverage area of ​​the ground base station and the actual vehicle acceleration;

[0089] Based on the signal coverage area, the actual vehicle acceleration, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the variable speed driving scenario is obtained.

[0090] It should be noted that, for variable speed operation scenarios, the actual vehicle acceleration 'a' can be obtained, and then the relationship between the millimeter-wave terrestrial base station signal coverage S and the acceleration 'a' and time 't' can be further determined as follows:

[0091]

[0092] Therefore, it can be determined that when the train reaches point A, the angle θ″ between the millimeter-wave vehicle-mounted mobile base station and the ground base station is:

[0093] The train travels from A to C within time t1. The angle θ1′ between the millimeter-wave vehicle-mounted mobile base station and the base station is:

[0094]

[0095] Relative to the stationary train, the millimeter-wave vehicle-mounted mobile base station has the following rotational angular velocity ω2:

[0096] Based on this, we obtain ω2 corresponding to each moment, and thus construct the rotational angular velocity curve under the variable speed operation scenario based on ω2 corresponding to each moment.

[0097] It should be noted that since points A and C are symmetrically distributed with respect to point B, in practical applications, the rotational angular velocity curve of the segment from point A to point B can be determined first, and then the overall rotational angular velocity curve from A to C can be obtained through symmetry.

[0098] Therefore, this application sets the millimeter-wave vehicle-mounted base station on a rotating turntable, and pre-determines the rotational angular velocity curve under the actual operating speed curve of the vehicle in the preset scenario. The turntable is then controlled to rotate according to the rotational angular velocity curve. During the rotation, the rotational angular velocity of the millimeter-wave vehicle-mounted mobile base station, which rotates with the turntable, also changes with the rotational angular velocity curve, thereby simulating the vehicle running according to the corresponding actual operating speed curve under the preset scenario. During the rotation of the turntable, the millimeter-wave signal emitted by the radio frequency transmitter on the millimeter-wave vehicle-mounted mobile base station is transmitted to the ground base station through the radome. The ground base station receives the corresponding millimeter-wave signal. Based on the transmitted signal strength emitted by the radio frequency transmitter and the received signal strength received by the ground base station at each moment, the corresponding actual transmittance data can be obtained. Based on the standard transmittance data changing with the rotational angular velocity under the preset scenario and the actual transmittance data, it can be determined whether the transmittance of the radome under test meets the transmittance requirements. This application can simulate the situation where the electromagnetic beam is emitted through different reference surfaces of the radome when the train actually passes through the ground station, thereby improving the accuracy of radome transmittance detection.

[0099] This invention also provides a corresponding apparatus for testing the transmittance of radomes of vehicle-mounted mobile base stations, further enhancing the practicality of the method. The apparatus can be described from both a functional module perspective and a hardware perspective. The following describes the apparatus for testing the transmittance of radomes of vehicle-mounted mobile base stations provided by this invention. This apparatus is used to implement the transmittance testing method for radomes of vehicle-mounted mobile base stations provided by this invention. In this embodiment, the apparatus may include or be divided into one or more program modules. These program modules are stored in a storage medium and executed by one or more processors to complete the transmittance testing method for radomes of vehicle-mounted mobile base stations disclosed in the above embodiments. The program module referred to in this invention is a series of computer program instruction segments capable of performing specific functions, which is more suitable than the program itself for describing the execution process of the transmittance testing device for radomes of vehicle-mounted mobile base stations in the storage medium. The following description will specifically introduce the functions of each program module in this embodiment. The transmittance testing device for radomes of vehicle-mounted mobile base stations described below can be referred to in correspondence with the transmittance testing method for radomes of vehicle-mounted mobile base stations described above.

[0100] From the perspective of functional modules, see Figure 5 , Figure 5This invention provides a structural diagram of an antenna transmittance testing device for a vehicle-mounted mobile base station radome. The device may include:

[0101] Control module 11 is used to control the rotation of the turntable according to the rotational angular velocity curve that changes with time for different preset scenarios; wherein, the rotational angular velocity curve is preset by the setting module based on the actual running speed curve of the vehicle under the preset scenario; the turntable is equipped with a millimeter-wave vehicle-mounted mobile base station and an RF transmitter and an antenna cover to be tested set on the millimeter-wave vehicle-mounted mobile base station.

[0102] The acquisition module 12 is used to acquire the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station at various times during the rotation of the turntable; the ground base station is set at a preset position on the ground.

[0103] The first determining module 13 is used to obtain the actual transmittance data as the rotational angular velocity changes under a preset scenario based on each transmitted signal strength and the corresponding received signal strength.

[0104] The second determining module 14 is used to determine whether the transmittance of the radome to be tested meets the transmittance requirements based on the standard transmittance data and the corresponding actual transmittance data that change with rotational angular velocity under various preset scenarios.

[0105] In one embodiment, the second determining module 14 includes:

[0106] The comparison unit is used to compare the actual transmittance data of the preset scenario with the standard transmittance data obtained in advance for each preset scenario.

[0107] The first determining unit is used to determine whether the actual transmittance data under the preset scenario meets the transmittance requirements when the actual transmittance value at each time is greater than or equal to the standard transmittance value at the corresponding time.

[0108] The second determining unit is used to determine that the transmittance of the radome under test meets the transmittance requirements when the actual transmittance data corresponding to each preset scenario meets the transmittance requirements of the corresponding preset scenario.

[0109] In one embodiment, the device further includes:

[0110] The third determining module is used to determine that the actual transmittance data under the preset scenario does not meet the transmittance requirements when the actual transmittance value at each time is less than the standard transmittance value at the corresponding time.

[0111] The fourth determination module is used to determine that the transmittance of the radome under test does not meet the transmittance requirements when the actual transmittance data corresponding to at least one preset scenario does not meet the transmittance requirements of the preset scenario.

[0112] In one embodiment, the device may further include:

[0113] The fifth determination module is used to identify moments when the actual transmittance value is less than the standard transmittance value at the corresponding moment as abnormal moments.

[0114] The sixth determination module is used to determine the corresponding rotation angle based on the abnormal moment;

[0115] The seventh determination module is used to determine the location range of abnormal transmittance on the radome under test based on the initial position and rotation angle of the radome under test.

[0116] In one implementation, the preset scenarios include a constant speed driving scenario and a variable speed driving scenario.

[0117] In one implementation, when the preset scenario is a constant speed driving scenario, the rotation setting module includes:

[0118] The first acquisition unit is used to acquire the signal coverage area of ​​the ground base station and the actual constant speed of the vehicle in advance.

[0119] The third determining unit is used to obtain the rotational angular velocity curve of rotational angular velocity changing with time under the uniform speed driving scenario based on the signal coverage area, the actual uniform speed of the vehicle, and the distance between the antenna mast on the ground base station and the track.

[0120] In the case of a preset scenario of variable speed driving, the following modules are configured:

[0121] The second acquisition unit is used to acquire the signal coverage area of ​​the ground base station and the actual driving acceleration of the vehicle in advance.

[0122] The fourth determining unit is used to obtain the rotational angular velocity curve of rotational angular velocity over time in a variable speed driving scenario, based on the signal coverage area, the actual driving acceleration of the vehicle, and the distance between the antenna mast on the ground base station and the track.

[0123] In one embodiment, the turntable is further provided with a mounting base, on which the millimeter-wave vehicle-mounted mobile base station on the turntable is mounted.

[0124] It should be noted that the antenna transmittance testing device for vehicle-mounted mobile base stations in this embodiment of the invention has the same beneficial effects as the antenna transmittance testing method for vehicle-mounted mobile base stations provided in the above embodiments. For a detailed description of the antenna transmittance testing method for vehicle-mounted mobile base stations involved in this embodiment of the invention, please refer to the above embodiments, and this application will not repeat it here.

[0125] The antenna transmittance testing device for vehicle-mounted mobile base stations mentioned above is described from the perspective of functional modules. Furthermore, this invention also provides an antenna transmittance testing equipment for vehicle-mounted mobile base stations, which is described from a hardware perspective. This antenna transmittance testing equipment for vehicle-mounted mobile base stations includes a ground-based simulated base station set at a preset location on the ground, a turntable, a millimeter-wave vehicle-mounted mobile base station set on the turntable, an RF transmitter set on the millimeter-wave vehicle-mounted mobile base station, a memory, and a processor. The antenna radome to be tested is used to cover the millimeter-wave vehicle-mounted mobile base station.

[0126] Memory, used to store computer programs;

[0127] A processor is used to execute computer programs to implement the steps of the above-described method for testing the transmittance of the radome of a vehicle-mounted mobile base station.

[0128] The processor may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor can be implemented using at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor may also include a main processor and coprocessors. The main processor, also known as a CPU (Central Processing Unit), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor, which is used to handle computational operations related to machine learning.

[0129] The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the memory may be an internal storage unit of an electronic device, such as a hard drive in a server. Those skilled in the art will understand that the structures described above do not constitute a limitation on the electronic device and may include more or fewer components.

[0130] Based on this, embodiments of the present invention also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-described method for testing the transmittance of the radome of a vehicle-mounted mobile base station.

[0131] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0132] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0133] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for testing the wave permeability of an antenna cover of a vehicle-mounted mobile base station, characterized in that, include: For different preset scenarios, the turntable is controlled to rotate according to the rotational angular velocity curve that changes with time; wherein, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario; the turntable is equipped with a millimeter-wave vehicle-mounted mobile base station and an RF transmitter and an antenna cover to be tested mounted on the millimeter-wave vehicle-mounted mobile base station. During the rotation of the turntable, the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station are acquired at various times; the ground base station is set at a preset position on the ground. Based on the transmitted signal strength and the corresponding received signal strength, the actual transmittance data as a function of rotational angular velocity under the preset scenario is obtained. Based on the standard transmittance data and the corresponding actual transmittance data under various preset scenarios, it is determined whether the transmittance of the radome under test meets the transmittance requirements; wherein: The preset scenarios include constant speed driving scenarios and variable speed driving scenarios; When the preset scenario is a constant speed driving scenario, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario, including: Pre-obtain the signal coverage area of ​​the ground base station and the actual constant speed of the vehicle; Based on the signal coverage area, the actual constant speed of the vehicle, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the constant speed driving scenario is obtained. When the preset scenario is a variable-speed driving scenario, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario, including: Pre-obtain the signal coverage area of ​​the ground base station and the actual vehicle acceleration; Based on the signal coverage area, the actual vehicle acceleration, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the variable speed driving scenario is obtained.

2. The method for testing the transmittance of the radome of a vehicle-mounted mobile base station according to claim 1, characterized in that, The step of determining whether the transmittance of the radome under test meets the transmittance requirements based on the standard transmittance data and the corresponding actual transmittance data under various preset scenarios, includes: For each preset scenario, the actual transmittance data of the preset scenario as a function of rotational angular velocity is compared with the pre-acquired standard transmittance data. If the actual transmittance value at each moment is greater than or equal to the standard transmittance value at the corresponding moment, it is determined that the actual transmittance data under the preset scenario meets the transmittance requirements of the preset scenario. If the actual transmittance data for each preset scenario meets the transmittance requirements of the corresponding preset scenario, then the transmittance of the radome under test is determined to meet the transmittance requirements.

3. The method for testing the transmittance of the radome of a vehicle-mounted mobile base station according to claim 2, characterized in that, Also includes: If any of the actual transmittance values ​​at any given time are less than the standard transmittance value at the corresponding time, it is determined that the actual transmittance data under the preset scenario does not meet the transmittance requirements of the preset scenario. If the actual transmittance data corresponding to at least one preset scenario does not meet the transmittance requirement of the preset scenario, it is determined that the transmittance of the radome under test does not meet the transmittance requirement.

4. The method for testing the transmittance of the radome of a vehicle-mounted mobile base station according to claim 3, characterized in that, After determining that the transmittance of the radome under test does not meet the transmittance requirement, the method further includes: The moment when the actual transmittance value is less than the standard transmittance value at the corresponding moment is considered an abnormal moment. The corresponding rotation angle is determined based on the abnormal moment. Based on the initial position of the radome under test and the rotation angle, the range of locations on the radome under test where the transmittance is abnormal is determined.

5. The method for testing the transmittance of the radome of a vehicle-mounted mobile base station according to any one of claims 1 to 4, characterized in that, The turntable is also equipped with a mounting base, and the millimeter-wave vehicle-mounted mobile base station on the turntable is mounted on the mounting base.

6. A device for testing the transmittance of an antenna radome for a vehicle-mounted mobile base station, characterized in that, include: The control module is used to control the rotation of the turntable according to the rotational angular velocity curve that changes with time for different preset scenarios; wherein, the rotational angular velocity curve is preset based on the actual operating speed curve of the vehicle under the preset scenario; the turntable is equipped with a millimeter-wave vehicle-mounted mobile base station and an RF transmitter and an antenna cover to be tested mounted on the millimeter-wave vehicle-mounted mobile base station. The acquisition module is used to acquire the transmitted signal strength of the radio frequency transmitter and the received signal strength of the ground base station at various times during the rotation of the turntable; the ground base station is set at a preset position on the ground. The first determining module is used to obtain the actual transmittance data as a function of rotational angular velocity under the preset scenario based on the strength of each transmitted signal and the corresponding received signal strength. The second determining module is used to determine whether the transmittance of the radome under test meets the transmittance requirements based on the standard transmittance data varying with rotational angular velocity under various preset scenarios and the corresponding actual transmittance data; wherein: The preset scenarios include constant speed driving scenarios and variable speed driving scenarios; When the preset scenario is a constant speed driving scenario, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario, including: Pre-obtain the signal coverage area of ​​the ground base station and the actual constant speed of the vehicle; Based on the signal coverage area, the actual constant speed of the vehicle, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the constant speed driving scenario is obtained. When the preset scenario is a variable-speed driving scenario, the rotational angular velocity curve is preset based on the actual vehicle operating speed curve under the preset scenario, including: Pre-obtain the signal coverage area of ​​the ground base station and the actual vehicle acceleration; Based on the signal coverage area, the actual vehicle acceleration, and the distance between the antenna mast on the ground base station and the track, the rotational angular velocity curve as a function of time under the variable speed driving scenario is obtained.

7. A device for testing the transmittance of an antenna radome, characterized in that, The system includes a ground-based simulated base station set at a preset location on the ground, a turntable, a millimeter-wave vehicle-mounted mobile base station set on the turntable, a radio frequency transmitter, a memory, and a processor set on the millimeter-wave vehicle-mounted mobile base station, wherein the antenna cover to be tested is used to cover the millimeter-wave vehicle-mounted mobile base station. The memory is used to store computer programs; The processor is configured to execute the computer program to implement the steps of the antenna transmittance test method for the vehicle-mounted mobile base station as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the antenna transmittance test method for the vehicle-mounted mobile base station as described in any one of claims 1 to 5.

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