Method, device and equipment for testing wave transmission rate of radome of vehicle-mounted mobile base station and medium

Abstract

The invention discloses a method, a device, equipment and a medium for testing the wave transmission rate of an antenna housing of a vehicle-mounted mobile base station, which are applied to the technical field of rail transit. For different preset scenes, the turntable is controlled to drive the millimeter wave vehicle-mounted mobile base station, the radio frequency transmitting terminal and the antenna housing to be tested to rotate according to a rotation angular velocity curve of the rotation angular velocity changing along with time; the rotation angular velocity curve is set in advance based on an actual running velocity curve of the vehicle in a preset scene; acquiring the transmitting signal strength of the radio frequency transmitting end at each moment and the receiving signal strength of the ground base station in the rotating process of the rotary table; on the basis of each emission signal intensity and the corresponding reception signal intensity, obtaining actual wave transmission rate data changing along with the rotation angular velocity in the preset scene; determining whether the wave transmissivity of the to-be-tested radome meets the wave transmissivity requirement or not according to the standard wave transmissivity data and the corresponding actual wave transmissivity data which change along with the rotation angular velocity in each preset scene; the test accuracy of the antenna housing can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and particularly to a method, device, equipment and computer-readable storage medium for testing the wave transmission rate of an antenna cover of a vehicle-mounted mobile base station. Background Art

[0002] The high-speed maglev millimeter-wave wireless communication system is the only means to achieve vehicle-ground communication in the high-speed maglev system. The millimeter-wave vehicle-mounted mobile base station consists of an antenna cover, a vehicle-mounted antenna group, a vehicle-mounted transceiver, a modulator / demodulator, etc. The millimeter-wave radar has the characteristics of high resolution, small size and flexibility, and the antenna cover is a part of its sealing design. In addition to protecting the antenna, the antenna cover also has the effect of reducing wind resistance. Therefore, the antenna cover is an important part of the antenna and directly affects the technical indicators of the antenna. Due to the short wavelength of millimeter waves and large losses in the medium, high requirements are placed on the dimensional accuracy of the antenna cover. Therefore, the wave transmission rate (i.e., the power transmission coefficient) of the antenna cover is of great significance for the millimeter-wave wireless communication system.

[0003] In the prior art, the wave transmission rate of the antenna cover is usually tested on the ground, and only the wave transmission rate of a single reference plane of the antenna cover can be tested. It is impossible to simulate the electromagnetic beam between the vehicle-mounted mobile base station and the ground base station passing through different reference planes of the antenna cover when the train actually runs past the ground base station, resulting in inaccurate testing of the wave transmission rate of the antenna cover.

[0004] In view of this, how to improve the accuracy of testing the wave transmission rate of the antenna cover has become a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a method, device, equipment and computer-readable storage medium for testing the wave transmission rate of an antenna cover of a vehicle-mounted mobile base station, which can improve the accuracy of detecting the wave transmission rate of the antenna cover during use.

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

[0007] On the one hand, the present invention provides a method for testing the wave transmission rate of an antenna cover of a vehicle-mounted mobile base station, including:

[0008] For different preset scenarios, control the turntable to rotate according to the rotation angular velocity curve of the rotation angular velocity varying with time; wherein, the rotation angular velocity curve is set in advance based on the actual running speed curve of the vehicle under the preset scenario; a millimeter-wave vehicle-mounted mobile base station and a radio frequency transmitting end and an antenna cover to be tested provided on the millimeter-wave vehicle-mounted mobile base station are arranged on the turntable;

[0009] During the rotation of the turntable, obtain the transmission signal strength of the RF transmitter and the received signal strength of the ground base station at each moment; the ground base station is set at a preset position on the ground;

[0010] Based on each of the transmission signal strengths and the corresponding received signal strengths, obtain the actual transmission rate data varying with the rotational angular velocity in the preset scenario;

[0011] According to the standard transmission rate data varying with the rotational angular velocity in each preset scenario and the corresponding actual transmission rate data, determine whether the transmission rate of the antenna radome to be tested meets the transmission rate requirement.

[0012] In one implementation, the step of determining whether the transmission rate of the antenna radome to be tested meets the transmission rate requirement according to the standard transmission rate data varying with the rotational angular velocity in each preset scenario and the corresponding actual transmission rate data includes:

[0013] For each preset scenario, compare the actual transmission rate data varying with the rotational angular velocity in the preset scenario with the pre-obtained standard transmission rate data;

[0014] In the case where the actual transmission rate value at each moment is greater than or equal to the standard transmission rate value at the corresponding moment, determine that the actual transmission rate data in the preset scenario meets the preset scenario transmission rate requirement;

[0015] In the case where the actual transmission rate data corresponding to each preset scenario meets the corresponding preset scenario transmission rate requirement, determine that the transmission rate of the antenna radome to be tested meets the transmission rate requirement.

[0016] In one implementation, it further includes:

[0017] In the case where there is an actual transmission rate value less than the standard transmission rate value at the corresponding moment among the actual transmission rate values at each moment, determine that the actual transmission rate data in the preset scenario does not meet the preset scenario transmission rate requirement;

[0018] In the case where the actual transmission rate data corresponding to at least one preset scenario does not meet the preset scenario transmission rate requirement, determine that the transmission rate of the antenna radome to be tested does not meet the transmission rate requirement.

[0019] In one implementation, after determining that the transmission rate of the antenna radome to be tested does not meet the transmission rate requirement, it further includes:

[0020] Take the moment when the actual transmission rate value is less than the standard transmission rate value at the corresponding moment as an abnormal moment;

[0021] Determine the corresponding rotation angle according to the abnormal moment;

[0022] Determine the position range with abnormal transmission rate on the radome to be tested according to the initial position of the radome to be tested and the rotation angle.

[0023] In one embodiment, 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 set in advance based on the actual vehicle running speed curve in the preset scenario, and includes:

[0025] Obtain the signal coverage range of the ground base station and the actual constant speed of the vehicle in advance;

[0026] According to the signal coverage range, the actual constant speed of the vehicle, and the distance between the antenna pole on the ground base station and the track, obtain the rotational angular velocity curve of the rotational angular velocity changing with time in the constant-speed driving scenario;

[0027] In the case where the preset scenario is a variable-speed driving scenario, the rotational angular velocity curve is set in advance based on the actual vehicle running speed curve in the preset scenario, and includes:

[0028] Obtain the signal coverage range of the ground base station and the actual driving acceleration of the vehicle in advance;

[0029] According to the signal coverage range, the actual driving acceleration of the vehicle, and the distance between the antenna pole on the ground base station and the track, obtain the rotational angular velocity curve of the rotational angular velocity changing with time in the variable-speed driving scenario.

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

[0031] On the other hand, the present invention also provides a device for testing the transmission rate of the radome of a vehicle-mounted mobile base station, including:

[0032] A control module, configured to control the rotation of the turntable according to the rotational angular velocity curve of the rotational angular velocity changing with time for different preset scenarios; wherein, the rotational angular velocity curve is set in advance based on the actual vehicle running speed curve in the preset scenario; a millimeter-wave vehicle-mounted mobile base station and a radio frequency transmitting end and a radome to be tested arranged on the millimeter-wave vehicle-mounted mobile base station are provided on the turntable;

[0033] An acquisition module, configured to acquire the transmission signal intensity of the radio frequency transmitting end and the received signal intensity of the ground base station at each moment during the rotation of the turntable; the ground base station is arranged at a preset position on the ground;

[0034] A first determination module, configured to obtain actual transmission rate data varying with the rotational angular velocity in the preset scenario based on the intensity of each transmitted signal and the corresponding received signal intensity;

[0035] A second determination module, configured to determine whether the transmission rate of the antenna radome to be tested meets the transmission rate requirement according to the standard transmission rate data varying with the rotational angular velocity in each preset scenario and the corresponding actual transmission rate data.

[0036] On the other hand, the present invention further provides a device for testing the transmission rate of an antenna radome of a vehicle-mounted mobile base station, including a ground simulation base station, a turntable, a millimeter-wave vehicle-mounted mobile base station disposed on the turntable, a radio frequency transmitting end, a memory, and a processor disposed 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 configured to store a computer program;

[0038] The processor is configured to implement the steps of the method for testing the transmission rate of the antenna radome of the vehicle-mounted mobile base station as described above when executing the computer program.

[0039] On the other hand, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method for testing the transmission rate of the antenna radome of the vehicle-mounted mobile base station as described above are implemented.

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

[0041] The embodiments of the present invention provide a method for testing the transmission rate of an antenna radome of a vehicle-mounted mobile base station, including: for different preset scenarios, controlling the turntable to rotate according to the rotational angular velocity curve varying with time, where the rotational angular velocity curve is pre-set based on the actual running speed curve of the vehicle in the preset scenario; a millimeter-wave vehicle-mounted mobile base station, a radio frequency transmitting end disposed on the millimeter-wave vehicle-mounted mobile base station, and an antenna radome to be tested are disposed on the turntable; during the rotation of the turntable, obtaining the intensity of the transmitted signal of the radio frequency transmitting end and the intensity of the received signal of the ground base station at each moment; the ground base station is disposed at a preset position on the ground; obtaining actual transmission rate data varying with the rotational angular velocity in the preset scenario based on the intensity of each transmitted signal and the corresponding received signal intensity; and determining whether the transmission rate of the antenna radome to be tested meets the transmission rate requirement according to the standard transmission rate data varying with the rotational angular velocity in each preset scenario and the corresponding actual transmission rate data.

[0042] It can be seen that in this application, the millimeter-wave vehicle-mounted base station is arranged on a turntable that can rotate. The rotation angular velocity curve under the preset scenario is determined in advance according to the actual vehicle running speed curve under the preset scenario, and the turntable is controlled to rotate according to this rotation angular velocity curve. During the rotation process, the rotation angular velocity of the millimeter-wave vehicle-mounted mobile base station that rotates together with the turntable will also change with the rotation angular velocity curve, so as to simulate that the vehicle runs according to the corresponding actual running speed curve under the preset scenario. During the rotation of the turntable, the millimeter-wave signal emitted by the radio frequency transmitting end on the millimeter-wave vehicle-mounted mobile base station is transmitted through the antenna radome to be tested to the ground base station. The ground base station receives the corresponding millimeter-wave signal. According to the emission signal intensity emitted by the radio frequency transmitting end at each moment and the received signal intensity received by the ground base station, the corresponding actual transmittance data can be obtained. According to the standard wave transmission rate data that changes with the rotation angular velocity under this preset scenario and this actual transmittance data, it can be determined whether the wave transmission rate of the antenna radome to be tested meets the wave transmission rate requirement. This application can simulate the situation where the electromagnetic wave beam exits through different reference planes of the antenna radome when the train actually runs through the ground station, so as to improve the accuracy of the wave transmission rate detection of the antenna radome.

[0043] In addition, the present invention also provides corresponding implementation devices, electronic devices and computer-readable storage media for the method for testing the wave transmission rate of the antenna radome of the vehicle-mounted mobile base station, further making the method more practical, and the devices, equipment and computer-readable storage media have corresponding advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the prior art and the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0045] Figure 1 It is a schematic flow chart of a method for testing the wave transmission rate of the antenna radome of a vehicle-mounted mobile base station provided by an embodiment of the present invention;

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

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

[0048] Figure 4 It is a schematic position diagram of a vehicle-mounted mobile base station and a ground base station provided by an embodiment of the present invention;

[0049] Figure 5Schematic structural diagram of a device for testing the wave transmission rate of an antenna radome of a vehicle-mounted mobile base station provided by an embodiment of the present invention. Specific embodiments

[0050] Embodiments of the present invention provide a method, device, equipment and computer-readable storage medium for testing the wave transmission rate of an antenna radome of a vehicle-mounted mobile base station, which can improve the accuracy of detecting the wave transmission rate of the antenna radome during use.

[0051] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0052] Please refer to Figure 1 , Figure 1 Schematic flow diagram of a method for testing the wave transmission rate of an antenna radome of a vehicle-mounted mobile base station provided by an embodiment of the present invention. The method includes:

[0053] S110: For different preset scenarios, control the turntable to rotate according to the rotational angular velocity curve of the rotational angular velocity varying with time; wherein, the rotational angular velocity curve is pre-set based on the actual vehicle running speed curve under the preset scenario; a millimeter-wave vehicle-mounted mobile base station and a radio frequency transmitting end arranged on the millimeter-wave vehicle-mounted mobile base station are provided on the turntable;

[0054] It should be noted that the vehicle will be in different preset scenarios during actual operation. The preset scenarios are speed scenarios. For example, the different preset scenarios may include a constant-speed driving scenario and a variable-speed driving scenario. During the actual operation of the vehicle, there are corresponding actual vehicle operation speed curves for different preset scenarios. Since the ground base station is set at a fixed position beside the rail route, the distance between the antenna pole on the ground base station and the rail is, for example, x, and the wireless signal coverage range is 2S. Therefore, during the process of the vehicle running along the rail, the angle between the millimeter-wave vehicle-mounted mobile base station set on the vehicle and the ground base station will also change. In the present application, a device for setting the wave transmission rate of the antenna cover of the vehicle-mounted mobile base station can be set. The test device includes a turntable, on which a millimeter-wave vehicle-mounted mobile base station is set. The millimeter-wave vehicle-mounted mobile base station is provided with a radio frequency transmitting end, and a ground base station (including a ground antenna and a ground receiving terminal) is provided 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 the present application, the rotation angular velocity curve of the millimeter-wave vehicle-mounted mobile base station changing with time can be obtained in advance according to the actual vehicle operation speed curve in a certain scenario, so that during the process of controlling the rotation of the turntable according to the rotation angular velocity curve in the preset scenario, the angle between the millimeter-wave vehicle-mounted mobile base station on the turntable and the ground base station is consistent with the angle between the millimeter-wave vehicle-mounted mobile base station on the vehicle and the ground base station when the vehicle runs along the corresponding actual vehicle operation speed curve during the actual vehicle operation process. That is to say, in the present application, during the process of controlling the rotation of the turntable according to the rotation angular velocity curve in the preset scenario, the speed of the millimeter-wave vehicle-mounted mobile base station during the actual vehicle operation process can be simulated to change according to the corresponding actual vehicle operation speed curve.

[0055] It should be noted that, as Figures 2 to 3 shown, where Figure 2 is a schematic structural diagram of the millimeter-wave antenna cover and the mounting seat, Figure 3 is a structural diagram of the millimeter-wave antenna and the mounting seat. In the present application, in order to improve the test stability, a mounting seat is further provided on the turntable, and the millimeter-wave vehicle-mounted mobile base station on the turntable is set on the mounting seat.

[0056] S120: During the rotation of the turntable, obtain the transmission signal intensity of the radio frequency transmitting end and the received signal intensity of the ground base station at each moment; the ground base station is set at a preset position on the ground;

[0057] It can be understood that during the rotation of the turntable, the RF transmitter on the millimeter-wave vehicle-mounted mobile base station on the turntable will continuously transmit signals. Since the angle between the millimeter-wave station mobile base station and the ground base station changes with the rotation of the turntable, the signal transmitted by the RF transmitter will be transmitted to the ground terminal through different reference planes of the antenna station. Therefore, the transmission signal strength of the RF transmitter on the millimeter-wave vehicle-mounted mobile base station at different times during the rotation of the turntable can be obtained, as well as the reception signal strength of the reception signal received by the ground terminal at each corresponding time.

[0058] S130: Based on the strength of each transmitted signal and the corresponding received signal strength, obtaining actual transmittance data that varies with the rotation angular velocity in a preset scenario;

[0059] After obtaining the transmission signal strength of the RF transmitter at each moment and the corresponding reception signal strength of the ground base station, the transmittance at that moment can be determined based on the transmission signal strength and reception signal strength at each moment, thereby obtaining the actual transmittance data that changes with the rotation angle in the preset scenario.

[0060] S140: Determine whether the transmittance of the antenna cover to be tested meets the transmittance requirement based on the standard transmittance data that changes with the rotation angular velocity in each preset scenario and the corresponding actual transmittance data.

[0061] It should be noted that, for different preset scenarios, actual wave transmittance data varying with rotational angular velocity for the preset scenario can be obtained by following steps S110 to S130. Thus, actual wave transmittance data varying with rotational angular velocity corresponding to each preset scenario can be obtained. In practical applications, standard wave transmittance data varying with rotational angular velocity for the radome can be pre-tested for each preset scenario to obtain standard wave transmittance data for the radome for that preset scenario. Based on the standard wave transmittance data varying with rotational angular velocity for each preset scenario and the actual wave transmittance data obtained through steps S110 to S130 for the corresponding preset scenario, it can be determined whether the wave transmittance of the tested radome meets the wave transmittance requirements, thereby determining whether the tested radome is of acceptable quality.

[0062] In one embodiment, the process of determining whether the transmittance of the antenna cover to be tested meets the transmittance requirement based on the standard transmittance data that varies with the rotation angular velocity in each preset scenario and the corresponding actual transmittance data in S140 may include:

[0063] For each preset scenario, the actual transmittance data that changes with the rotation angular velocity in the preset scenario is compared with the pre-acquired standard transmittance data;

[0064] When the actual wave transmittance value at each moment is greater than or equal to the standard wave transmittance value at the corresponding moment, it is determined that the actual wave transmittance data under the preset scenario meets the preset scenario transmittance requirement;

[0065] In the case that the actual wave transmittance data corresponding to each preset scene meets the wave transmittance requirement of the corresponding preset scene, it is determined that the wave transmittance of the antenna cover to be tested meets the wave transmittance requirement.

[0066] It is understood that to improve the accuracy of radome testing, the actual transmittance data obtained for each preset scenario, which varies with the 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 standard transmittance value at the corresponding moment. If the actual transmittance value at each moment is not less than the corresponding standard transmittance value, it indicates that the actual transmittance data for that preset scenario meets the transmittance requirements for that preset scenario. According to this method, it is possible to determine whether the actual transmittance data for each preset scenario meets the corresponding preset scenario transmittance requirements. If the actual transmittance data for each preset scenario does meet the corresponding preset scenario transmittance requirements, it indicates that the transmittance of the radome under test meets the transmittance requirements, thereby confirming that the quality of the radome under test meets the requirements.

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

[0068] When the actual wave transmittance value at each moment is less than the standard wave transmittance value at the corresponding moment, it is determined that the actual wave transmittance data under the preset scenario does not meet the preset scenario transmittance requirement;

[0069] When actual wave transmittance data corresponding to at least one preset scenario does not meet the wave transmittance requirement of the preset scenario, it is determined that the wave transmittance of the antenna cover to be tested does not meet the wave transmittance requirement.

[0070] It should be noted that, in order to more comprehensively analyze the radome under test, if the actual transmittance values at each moment in a preset scenario are lower than the standard transmittance values at the corresponding moment(s), it can be determined that the actual transmittance data for that preset scenario does not meet the preset scenario transmittance requirements. If the actual transmittance data corresponding to just one of the preset scenarios does not meet the preset scenario transmittance requirements, it can be determined that the transmittance of the radome under test does not meet the transmittance requirements, and therefore, the quality of the radome under test does not meet the quality requirements.

[0071] In one embodiment, after determining that the wave transmittance of the radome to be tested does not meet the wave transmittance requirement, the method may further include:

[0072] Take the moment when the actual transmission rate value is less than the standard transmission rate value at the corresponding moment as the abnormal moment;

[0073] Determine the corresponding rotation angle according to the abnormal moment;

[0074] Determine the position range with abnormal transmission rate on the antenna radome to be tested according to the initial position and rotation angle of the antenna radome to be tested.

[0075] It should be noted that when the quality requirements are not met, in order to further determine which specific range of the antenna radome to be tested has abnormal transmission rate, the abnormal moment when the actual transmission rate value is less than the standard transmission rate value at the corresponding moment can be determined from the group of actual transmission rate data that does not meet the preset scenario transmission rate requirements. According to this abnormal moment, the rotation angle of the millimeter-wave vehicle-mounted mobile base station or the antenna radome to be tested relative to the ground base station during the period from the start of the turntable rotation to this abnormal moment can be determined, and the position of the antenna radome to be tested closest to the ground base station at the moment when the turntable starts to rotate can be determined as the initial position. Thus, according to this initial position and rotation angle, the position of the antenna radome to be tested closest to the ground base station at this abnormal moment can be determined, and the range corresponding to the surface of the antenna radome at this position can be determined as the position range with abnormal transmittance, so as to calibrate this position range on the antenna radome to be tested and feedback it to the manufacturer to improve the operation and maintenance efficiency of the antenna radome to be tested in the scenario.

[0076] Next, the determination process of the rotation angular velocity curve under different preset scenarios will be introduced:

[0077] Please refer to Figure 4 , in practical applications, assume that the distance between the antenna pole on the ground base station and the track is x, the 38G wireless signal coverage range 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 uniform motion scenario, the rotation angular velocity curve is a process set in advance based on the actual vehicle running speed curve under the preset scenario, which may include:

[0079] Obtain the signal coverage range of the ground base station and the actual uniform speed of the vehicle in advance;

[0080] According to the signal coverage range, the actual uniform speed of the vehicle, and the distance between the antenna pole on the ground base station and the track, obtain the rotation angular velocity curve of the rotation angular velocity changing with time in the uniform motion scenario;

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

[0082]

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

[0084]

[0085] Relative to the train, in the case of a uniform motion scenario, the rotational angular velocity ω1 of the millimeter-wave vehicle-mounted mobile base station is as follows:

[0086] Based on this, the corresponding ω1 at each moment is obtained, and thus the rotational angular velocity curve in the uniform motion scenario can be constructed according to the corresponding ω1 at each moment.

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

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

[0089] According to the signal coverage range, the actual driving acceleration of the vehicle, and the distance between the antenna pole on the ground base station and the track, the rotational angular velocity curve of the rotational angular velocity varying with time in the variable-speed driving scenario is obtained.

[0090] It should be noted that for the variable-speed operation scenario, the actual driving acceleration a of the vehicle can be obtained, and then the following relationship between the signal coverage range S of the millimeter-wave ground base station and the acceleration a and time t can be further determined:

[0091]

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

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

[0094]

[0095] Relative to the stationary train, the rotational angular velocity ω2 of the millimeter-wave vehicle-mounted mobile base station is as follows:

[0096] Based on this, the corresponding ω2 at each moment is obtained, and thus the rotational angular velocity curve in the variable-speed operation scenario can be constructed according to the corresponding ω2 at each moment.

[0097] It should be noted that since point A and point C are symmetrically distributed with respect to point B, in practical applications, the rotational angular velocity curve for the section where point A moves to point B can be determined first, and then the rotational angular velocity curve for the whole section from A to C can be obtained by symmetry.

[0098] Thus, in this application, the millimeter-wave vehicle-mounted base station is arranged on a rotatable turntable. The rotational angular velocity curve under a preset scenario is determined in advance according to the actual vehicle running speed curve under the preset scenario, and the turntable is controlled to rotate according to this rotational angular velocity curve. During the rotation process, the rotational angular velocity of the millimeter-wave vehicle-mounted mobile base station rotating together with the turntable will also change with the rotational angular velocity curve, so as to simulate the vehicle running according to the corresponding actual running speed curve under the preset scenario. During the rotation of the turntable, the millimeter-wave signal transmitted by the radio frequency transmitting end on the millimeter-wave vehicle-mounted mobile base station is transmitted through the radome to the ground base station, and the ground base station receives the corresponding millimeter-wave signal. According to the transmission signal strength transmitted by the radio frequency transmitting end at each moment and the received signal strength received by the ground base station, the corresponding actual transmittance data can be obtained. According to the standard wave transmission rate data varying with the rotational angular velocity under this preset scenario and this actual transmittance data, it can be determined whether the wave transmission rate of the radome to be tested meets the wave transmission rate requirement. This application can simulate the case where the electromagnetic beam passes through different reference planes of the radome when the train actually runs through the ground station, thereby improving the accuracy of the radome wave transmission rate detection.

[0099] The present invention also provides a corresponding device for the method of testing the wave transmission rate of the radome of the vehicle-mounted mobile base station, further making the method more practical. Among them, the device can be described from the perspective of functional modules and the perspective of hardware respectively. The following introduces the device for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station provided by the present invention. This device is used to implement the method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station provided by the present invention. In this embodiment, the device for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station can include or be divided into one or more program modules. These one or more program modules are stored in a storage medium and are executed by one or more processors to complete the method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station disclosed in the above embodiment. The program modules referred to in the present invention refer to a series of computer program instruction segments that can complete specific functions, and are more suitable for describing the execution process of the device for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station in the storage medium than the program itself. The following description will specifically introduce the functions of each program module in this embodiment. The device for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station described below can be correspondingly referred to with the method for testing the wave transmission rate of the radome based on the vehicle-mounted mobile base station described above.

[0100] From the perspective of functional modules, refer to Figure 5 , Figure 5The structural diagram of a test device for the wave transmission rate of an antenna cover of a vehicle-mounted mobile base station provided by the present invention. The device may include:

[0101] A control module 11, configured to control the turntable to rotate according to the rotational angular velocity curve that changes with time for different preset scenarios; wherein, the rotational angular velocity curve is set in advance by a setting module based on the actual vehicle running speed curve under the preset scenario; a millimeter-wave vehicle-mounted mobile base station and a radio frequency transmitting end and an antenna cover to be tested are provided on the turntable;

[0102] An acquisition module 12, configured to acquire the transmission signal intensity of the radio frequency transmitting end and the received signal intensity of the ground base station at each moment during the rotation of the turntable; the ground base station is set at a preset position on the ground;

[0103] A first determination module 13, configured to obtain the actual wave transmission rate data that changes with the rotational angular velocity under the preset scenario based on each transmission signal intensity and the corresponding received signal intensity;

[0104] A second determination module 14, configured to determine whether the wave transmission rate of the antenna cover to be tested meets the wave transmission rate requirement according to the standard wave transmission rate data that changes with the rotational angular velocity and the corresponding actual wave transmission rate data under each preset scenario.

[0105] In an implementation manner, the second determination module 14 includes:

[0106] A comparison unit, configured to compare the actual wave transmission rate data that changes with the rotational angular velocity under the preset scenario with the pre-acquired standard wave transmission rate data for each preset scenario;

[0107] A first determination unit, configured to determine that the actual wave transmission rate data under the preset scenario meets the wave transmission rate requirement of the preset scenario when the actual wave transmission rate value at each moment is greater than or equal to the standard wave transmission rate value at the corresponding moment;

[0108] A second determination unit, configured to determine that the wave transmission rate of the antenna cover to be tested meets the wave transmission rate requirement when the actual wave transmission rate data corresponding to each preset scenario meets the wave transmission rate requirement of the corresponding preset scenario.

[0109] In an implementation manner, the device further includes:

[0110] A third determination module, configured to determine that the actual wave transmission rate data under the preset scenario does not meet the wave transmission rate requirement of the preset scenario when there is an actual wave transmission rate value less than the standard wave transmission rate value at the corresponding moment among the actual wave transmission rate values at each moment;

[0111] A fourth determination module, configured to determine that the transmission rate of the antenna radome to be tested does not meet the transmission rate requirement when the actual transmission rate data corresponding to at least one preset scenario does not meet the transmission rate requirement of the preset scenario.

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

[0113] A fifth determination module, configured to use the moment when the actual transmission rate value is less than the standard transmission rate value at the corresponding moment as the abnormal moment;

[0114] A sixth determination module, configured to determine the corresponding rotation angle according to the abnormal moment;

[0115] A seventh determination module, configured to determine the position range with abnormal transmission rate on the antenna radome to be tested according to the initial position and the rotation angle of the antenna radome to be tested.

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

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

[0118] A first acquisition unit, configured to pre-acquire the signal coverage range of the ground base station and the actual uniform speed of the vehicle;

[0119] A third determination unit, configured to obtain a rotation angular velocity curve of the rotation angular velocity changing with time in the uniform speed driving scenario according to the signal coverage range, the actual uniform speed of the vehicle, and the distance between the antenna pole on the ground base station and the track;

[0120] When the preset scenario is a variable speed driving scenario, the setting module includes:

[0121] A second acquisition unit, configured to pre-acquire the signal coverage range of the ground base station and the actual driving acceleration of the vehicle;

[0122] A fourth determination unit, configured to obtain a rotation angular velocity curve of the rotation angular velocity changing with time in the variable speed driving scenario according to the signal coverage range, the actual driving acceleration of the vehicle, and the distance between the antenna pole on the ground base station and the track.

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

[0124] It should be noted that the test device for the wave transmission rate of the radome of the vehicle-mounted mobile base station in the embodiments of the present invention has the same beneficial effects as the method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station provided in the above embodiments. For the specific introduction of the method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station involved in the embodiments of the present invention, please refer to the above embodiments, and the present application will not elaborate here.

[0125] The test device for the wave transmission rate of the radome of the vehicle-mounted mobile base station mentioned above is described from the perspective of functional modules. Further, the present invention also provides a test equipment for the wave transmission rate of the radome of the vehicle-mounted mobile base station, which is described from the hardware perspective. The test equipment for the wave transmission rate of the radome of the vehicle-mounted mobile base station includes a ground simulation base station, a turntable, a millimeter-wave vehicle-mounted mobile base station arranged on the turntable, a radio frequency transmitting end, a memory and a processor arranged on the millimeter-wave vehicle-mounted mobile base station, wherein the radome to be tested is used to cover the millimeter-wave vehicle-mounted mobile base station;

[0126] The memory is used to store computer programs;

[0127] The processor is used to implement the steps of the method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station as described above when executing the computer program.

[0128] Among them, the processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one of the following hardware forms: DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor used to process data in the wake state, also known as the CPU (Central Processing Unit); the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor, and the AI processor is used to process 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, as well as non-volatile memory, such as one or more disk storage devices, flash storage devices. The memory may be an internal storage unit of an electronic device in some embodiments, such as the hard disk of a server. Those skilled in the art can understand that the structures described above do not constitute a limitation on the electronic device, and it may include more or fewer components.

[0130] Based on this, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station are implemented.

[0131] In this specification, the various embodiments are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and the relevant parts can be referred to the description of the method part.

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

[0133] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not 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 transmission rate of an antenna radome of a vehicle-mounted mobile base station, characterized in that, Including: For different preset scenarios, control the turntable to rotate according to the rotational angular velocity curve of the rotational angular velocity varying with time, where the rotational angular velocity curve is set in advance based on the actual vehicle running speed curve under the preset scenario; a millimeter-wave vehicle-mounted mobile base station is provided on the turntable, and a radio frequency transmitting end and a to-be-tested radome are provided on the millimeter-wave vehicle-mounted mobile base station; During the rotation of the turntable, obtain the transmitting signal strength of the radio frequency transmitting end and the receiving signal strength of the ground base station at each moment; the ground base station is set at a preset position on the ground; Based on each of the transmitting signal strengths and the corresponding receiving signal strengths, obtain the actual transmission rate data varying with the rotational angular velocity under the preset scenario; According to the standard transmission rate data varying with the rotational angular velocity and the corresponding actual transmission rate data under each preset scenario, determine whether the transmission rate of the to-be-tested radome meets the transmission rate requirement.

2. The method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station according to claim 1, wherein, The step of determining whether the transmission rate of the to-be-tested radome meets the transmission rate requirement according to the standard transmission rate data varying with the rotational angular velocity and the corresponding actual transmission rate data under each preset scenario includes: For each preset scenario, compare the actual transmission rate data varying with the rotational angular velocity under the preset scenario with the pre-obtained standard transmission rate data; In the case where the actual transmission rate value at each moment is greater than or equal to the standard transmission rate value at the corresponding moment, determine that the actual transmission rate data under the preset scenario meets the preset scenario transmission rate requirement; In the case where the actual transmission rate data corresponding to each preset scenario meets the corresponding preset scenario transmission rate requirement, determine that the transmission rate of the to-be-tested radome meets the transmission rate requirement.

3. The method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station according to claim 2, characterized in that It further includes: In the case where there is an actual transmission rate value less than the standard transmission rate value at the corresponding moment among the actual transmission rate values at each moment, determine that the actual transmission rate data under the preset scenario does not meet the preset scenario transmission rate requirement; In the case where the actual transmission rate data corresponding to at least one preset scenario does not meet the preset scenario transmission rate requirement, determine that the transmission rate of the to-be-tested radome does not meet the transmission rate requirement.

4. The method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station according to claim 3, characterized in that, After determining that the transmission rate of the to-be-tested radome does not meet the transmission rate requirement, it further includes: Take the moment when the actual transmission rate value is less than the standard transmission rate value at the corresponding moment as an abnormal moment; Determine the corresponding rotation angle according to the abnormal moment; Determine the position range with abnormal transmission rate on the to-be-tested radome according to the initial position of the to-be-tested radome and the rotation angle.

5. The method for testing the transmittance of the antenna cover of the vehicle-mounted mobile base station according to claim 1, characterized in that: The preset scenarios include a constant-speed driving scenario and a variable-speed driving scenario.

6. The method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station according to claim 5, characterized in that, In the case where the preset scenario is a constant-speed driving scenario, the rotational angular velocity curve being set in advance based on the actual vehicle running speed curve under the preset scenario includes: Pre-obtain the signal coverage range of the ground base station and the actual constant speed of the vehicle; According to the signal coverage range, the actual constant speed of the vehicle, and the distance between the antenna pole on the ground base station and the track, obtain the rotational angular velocity curve of the rotational angular velocity varying with time under the constant-speed driving scenario; When the preset scenario is a variable-speed driving scenario, the rotational angular velocity curve is pre-set based on the actual vehicle running speed curve in the preset scenario, and includes: Pre-acquire the signal coverage range of the ground base station and the actual driving acceleration of the vehicle; According to the signal coverage range, the actual driving acceleration of the vehicle, and the distance between the antenna pole on the ground base station and the track, obtain the rotational angular velocity curve of the rotational angular velocity varying with time in the variable-speed driving scenario.

7. The method for testing the wave transmission rate of the radome of the vehicle-mounted mobile base station according to any one of claims 1 to 6, characterized in that, The turntable is further provided with a mounting seat, and the millimeter-wave vehicle-mounted mobile base station on the turntable is arranged on the mounting seat.

8. An antenna radome transmission rate testing device for a vehicle-mounted mobile base station, characterized in that, Includes: A control module, configured to control the turntable to rotate according to the rotational angular velocity curve of the rotational angular velocity varying with time for different preset scenarios; wherein, the rotational angular velocity curve is pre-set based on the actual vehicle running speed curve in the preset scenario; a millimeter-wave vehicle-mounted mobile base station and a radio frequency transmitting end and a to-be-tested radome arranged on the millimeter-wave vehicle-mounted mobile base station are provided on the turntable; An acquisition module, configured to acquire the transmission signal strength of the radio frequency transmitting end and the reception signal strength of the ground base station at each moment during the rotation of the turntable; the ground base station is arranged at a preset position on the ground; A first determination module, configured to obtain the actual transmission rate data varying with the rotational angular velocity in the preset scenario based on each of the transmission signal strengths and the corresponding reception signal strengths; A second determination module, configured to determine whether the transmission rate of the to-be-tested radome meets the transmission rate requirement according to the standard transmission rate data varying with the rotational angular velocity and the corresponding actual transmission rate data in each preset scenario.

9. An antenna radome transmission rate testing device, characterized in that Includes a ground simulation base station arranged at a preset position on the ground, a turntable, a millimeter-wave vehicle-mounted mobile base station arranged on the turntable, a radio frequency transmitting end arranged on the millimeter-wave vehicle-mounted mobile base station, a memory, and a processor, wherein the to-be-tested radome is used to cover the millimeter-wave vehicle-mounted mobile base station; The memory is used to store a computer program; The processor is configured to implement the steps of the method for testing the transmission rate of the radome of the vehicle-mounted mobile base station according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor, the steps of the method for testing the transmission rate of the radome of the vehicle-mounted mobile base station according to any one of claims 1 to 7 are implemented.

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