Magnetic levitation horizontal curve track section millimeter wave base station site selection method, device, equipment and medium

Abstract

The invention discloses a maglev horizontal curve track section millimeter wave base station site selection method, device and equipment and a medium, is applied to the technical field of track traffic, and aims to solve the problem of inaccurate site selection of a maglev horizontal curve track section millimeter wave base station, and the method comprises the following steps: establishing a high-speed maglev millimeter wave horizontal curve track coverage model; according to the high-speed magnetic levitation millimeter wave horizontal curve track coverage model, calculating the position of the ground base station relative to the track under the condition that the track coverage length of the ground base station is maximum; determining the position of the ground base station relative to the track as the site selection position of the ground base station; according to the method, the site selection position of the ground base station can be accurately determined, the station distribution cost can be reduced, the cell edge position signal coverage range can be improved, and the performance of millimeter wave system equipment can be improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of rail transit technology, and in particular to a method, device, electronic device and computer-readable storage medium for selecting a millimeter wave base station site for a maglev flat curve track section. Background Art

[0002] Millimeter wave wireless communication system is the only means to achieve vehicle-ground communication in high-speed maglev system, so reasonable and efficient site selection for ground base stations is an effective means to reduce system construction costs and improve system performance. At present, when selecting the site for millimeter wave ground base stations in the flat and curved track section of high-speed maglev, the installation location of the base station is mostly selected based on engineering experience. The base station installation location determined in this way generally causes problems such as increased station deployment costs and incomplete signal coverage at the edge of the cell, affecting the normal use of millimeter wave system equipment.

[0003] In view of this, how to improve the accuracy of millimeter wave base station site selection, reduce site deployment costs, increase signal coverage at the cell edge, and enhance the performance of millimeter wave system equipment has become a problem that technical personnel in this field need to solve. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a method, device, electronic device and computer-readable storage medium for millimeter wave base station site selection in a maglev flat curve track section, which can improve the accuracy of millimeter wave base station site selection, reduce station deployment costs, increase signal coverage at the edge of the cell, and enhance the performance of millimeter wave system equipment during use.

[0005] To solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

[0006] On one hand, the present invention provides a method for selecting a millimeter wave base station site in a maglev flat curve track section, comprising:

[0007] Establish a high-speed maglev millimeter wave flat curve track coverage model;

[0008] The position of the ground base station relative to the track is calculated according to the high-speed maglev millimeter wave flat curve track coverage model when the ground base station covers the maximum track length;

[0009] The position of the ground base station relative to the track is determined as the site selection position of the ground base station.

[0010] In one embodiment, the position of the ground base station relative to the track when the ground base station coverage track length is the maximum calculated according to the high-speed maglev millimeter wave flat curve track coverage model includes:

[0011] Obtain the center angle of the curved track of the high-speed maglev millimeter wave flat curved track;

[0012] Determine the curved track position and the straight track position according to the high-speed maglev millimeter wave flat curved track coverage model;

[0013] The position of the ground base station relative to the track when the ground base station covers the maximum track length is determined according to the central angle of the curved track and the curved track position, the curved track position and the straight track position.

[0014] In one embodiment, when the central angle of the curved track is greater than or equal to 90 degrees, determining the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved track and the curved track position, the curved track position and the straight track position includes:

[0015] Determine the position of a first auxiliary line according to the center angle of the curved track; the first auxiliary line bisects the center angle of the curved track;

[0016] Determine the position of a second auxiliary line according to the first auxiliary line and the position of the curved track; the second auxiliary line is a tangent line on the curved track and is perpendicular to the first auxiliary line;

[0017] Taking the intersection of the extended line of the outer side of the first straight track connected to the first end of the curved track and the second auxiliary line as the first position of the ground base station relative to the track;

[0018] The intersection of the extended line of the outer side of the second straight track connected to the second end of the curved track and the second auxiliary line is used as the second position of the ground base station relative to the track.

[0019] In one embodiment, when the central angle of the curved segment is less than 90 degrees, determining the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved segment and the curved track position, the curved track position and the straight track position includes:

[0020] Determining an extension line of an outer side of the first linear track according to a position of the first linear track connected to the first end of the curved track;

[0021] Determining an extension line of an outer side of the second linear track according to a position of the second linear track connected to the second end of the curved track;

[0022] The intersection of the extended line of the outer side of the first linear track and the extended line of the outer side of the second linear track is used as the position of the ground base station relative to the track.

[0023] In one embodiment, the high-speed maglev millimeter-wave flat curve track coverage model is constructed based on the width of the maglev train's onboard mobile base station antenna, the maximum gap between the maglev train's guide electromagnet and the track, the height of the maglev train's onboard mobile base station antenna, and the maximum gap between the maglev train's suspension electromagnet and the track.

[0024] In one embodiment, the high-speed maglev millimeter-wave flat curve track coverage model is constructed based on the width of the maglev train onboard mobile base station antenna, the maximum gap between the maglev train guide electromagnet and the track, the height of the maglev train onboard mobile base station antenna and the maximum gap between the maglev train suspension electromagnet and the track, and combined with the first relationship.

[0025] In one embodiment, the first relationship is:

[0026] ;

[0027] in, Indicates the track area of ​​the high-speed maglev millimeter wave flat curve track that needs to be covered by the ground base station; Indicates the width of the mobile base station antenna on the maglev train. Indicates the maximum gap between the guide electromagnet and the track of the maglev train. Indicates the height of the mobile base station antenna on the maglev train. It represents the maximum gap between the suspension electromagnet and the track of the maglev train, n represents the center angle of the flat curve track, and r represents the radius of the flat curve track.

[0028] Another aspect of the present invention provides a millimeter wave base station site selection device for a maglev flat curve track section, comprising:

[0029] Establish a module for building a high-speed maglev millimeter wave flat curve track coverage model;

[0030] A processing module, configured to calculate the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter wave flat curve track coverage model;

[0031] The determination module is used to determine the position of the ground base station relative to the track as the site selection position of the ground base station.

[0032] Another aspect of the present invention provides an electronic device, comprising:

[0033] Memory for storing computer programs;

[0034] A processor is used to implement the steps of the method for selecting millimeter wave base stations for a maglev flat curve track section as described above when executing the computer program.

[0035] On the other hand, the present invention 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 method for selecting a millimeter wave base station site for a maglev flat curve track section as described above are implemented.

[0036] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0037] A method for selecting a millimeter wave base station site in a maglev flat curve track section is provided in an embodiment of the present invention, comprising: establishing a high-speed maglev millimeter wave flat curve track coverage model; calculating the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter wave flat curve track coverage model; and determining the position of the ground base station relative to the track as the site selection position of the ground base station.

[0038] It can be seen that the embodiment of the present invention establishes a high-speed maglev millimeter-wave flat curve track coverage model, and further calculates the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter-wave flat curve track coverage model. This position can better cover the edge of the cell with signals, so the position of the ground base station relative to the track can be determined as the site selection location of the ground base station; the method in the present invention can accurately determine the site selection location of the ground base station, which is conducive to reducing the cost of station deployment, increasing the signal coverage range of the cell edge position, and improving the performance of the millimeter wave system equipment.

[0039] In addition, the present invention also provides corresponding implementation devices, electronic devices and computer-readable storage media for the method of selecting millimeter wave base stations in a flat curve track section of a maglev, further making the method more practical, and the devices, electronic devices and computer-readable storage media have corresponding advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 A schematic diagram of a flow chart of a method for selecting a millimeter wave base station site for a maglev flat curve track section provided by an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of a millimeter wave base station site selection scenario for a maglev flat curve track section provided by an embodiment of the present invention;

[0043] Figure 3 A schematic diagram of another millimeter wave base station site selection scenario in a maglev flat curve track section provided by an embodiment of the present invention;

[0044] Figure 4 A schematic diagram of the half-power angle in the vertical direction of a ground base station provided in an embodiment of the present invention;

[0045] Figure 5 A schematic diagram of the half-power angle in the horizontal direction of a ground base station provided by an embodiment of the present invention;

[0046] Figure 6 A schematic diagram of the structure of a millimeter wave base station site selection device for a maglev flat curve track section provided by an embodiment of the present invention;

[0047] Figure 7 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The embodiments of the present invention provide a method, device, electronic device and computer-readable storage medium for millimeter wave base station site selection in a maglev flat curve track section. During use, it can improve the accuracy of millimeter wave base station site selection, reduce station deployment costs, increase signal coverage at the edge of the cell, and enhance the performance of millimeter wave system equipment.

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Please refer to Figure 1 , Figure 1 A flow chart of a method for selecting a millimeter wave base station site for a maglev flat curve track section provided in an embodiment of the present invention. The method comprises:

[0051] S110: Establish a high-speed maglev millimeter wave flat curve track coverage model;

[0052] It should be noted that when the high-speed maglev train moves on the track, the area where the high-speed maglev train can receive the wireless signals transmitted by the ground base station is usually the on-board base station area located on the roof. Taking into account the serpentine motion and suspended landing of the high-speed maglev train, the track line model that needs to be covered by the ground base station can be equivalent to a rectangular block with a circular arc, and a high-speed maglev millimeter-wave flat curve track coverage model can be constructed.

[0053] The high-speed maglev millimeter wave flat curve track coverage model in the embodiment of the present invention is constructed based on the width of the maglev train onboard mobile base station antenna, the maximum gap between the maglev train guide electromagnet and the track, the height of the maglev train onboard mobile base station antenna, and the maximum gap between the maglev train suspension electromagnet and the track. The high-speed maglev millimeter wave flat curve track coverage model is specifically a track line model that the high-speed maglev millimeter wave flat curve track needs to be covered by a ground base station.

[0054] When constructing a high-speed maglev millimeter-wave flat curve track coverage model, the relevant parameters: the width of the maglev train onboard mobile base station antenna, the maximum gap between the maglev train guide electromagnet and the track, the height of the maglev train onboard mobile base station antenna, and the maximum gap between the maglev train suspension electromagnet and the track are established according to the first relationship, where the first relationship is:

[0055] ;

[0056] in, Indicates the track area of ​​the high-speed maglev millimeter wave flat curve track that needs to be covered by the ground base station, in m 3 ; Indicates the width of the mobile base station antenna on the maglev train, in meters; Indicates the maximum gap between the guide electromagnet and the track of the maglev train, in meters; Indicates the height of the mobile base station antenna on the maglev train, in meters; It represents the maximum gap between the suspension electromagnet and the track of the maglev train, in m; n represents the center angle of the flat curve track, and r represents the radius of the flat curve track, in m.

[0057] S120: calculating the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter wave flat curve track coverage model;

[0058] It should be noted that, in practical applications, the position of the ground base station relative to the track when the length of the ground base station coverage track is the largest can be determined based on the high-speed maglev millimeter-wave flat curve track coverage model.

[0059] In one implementation, the process of calculating the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter wave flat curve track coverage model in S120 may include:

[0060] Obtain the center angle of the curved track of the high-speed maglev millimeter wave flat curved track;

[0061] Determine the curved track position and the straight track position according to the high-speed maglev millimeter wave flat curved track coverage model;

[0062] According to the central angle of the curved track and the position of the curved track, the position of the curved track and the position of the straight track, the position of the ground base station relative to the track is determined when the ground base station covers the maximum track length.

[0063] It can be understood that in practical applications, the curve track center angle of the high-speed maglev millimeter wave flat curve track can be obtained according to the high-speed maglev millimeter wave flat curve track coverage model, and the curve track position and the straight track position can be determined, wherein the straight track includes two sections, namely, a first straight track connected to the first end of the curve track and a second straight track connected to the second end of the curve track. Furthermore, in an embodiment of the present invention, the position of the ground base station relative to the track can be determined when the ground base station covers the maximum track length according to the curve track center angle and the curve track position, the curve track position and the straight track position.

[0064] In one embodiment, Figure 2 As shown, when the central angle of the curved track is greater than or equal to 90 degrees, the process of determining the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved track and the curved track position, the curved track position and the straight track position may include:

[0065] According to the center angle of the curved track, the position of the first auxiliary line is determined; the first auxiliary line bisects the center angle of the curved track;

[0066] According to the first auxiliary line and the position of the curved track, the position of the second auxiliary line is determined; the second auxiliary line is a tangent line on the curved track and is perpendicular to the first auxiliary line;

[0067] The intersection of the extended line of the outer side of the first straight track connected to the first end of the curved track and the second auxiliary line is used as the first position of the ground base station relative to the track;

[0068] The intersection of the extended line of the outer side of the second straight track connected to the second end of the curved track and the second auxiliary line is used as the second position of the ground base station relative to the track.

[0069] Please note that, please refer to Figure 2 , the size of the center angle θ of the flat curve track curve segment can be determined. The size of the center angle θ can be obtained according to actual measurement. When the center angle θ is greater than or equal to 90°, the position of the first auxiliary line that can bisect the center angle θ can be determined according to the size of the center angle and the position of the center (such as Figure 2 l1 in the figure), the first auxiliary line intersects with the curved track segment, and a tangent line perpendicular to the first auxiliary line is determined according to the outer side of the curved track segment. The tangent line is the tangent line of the outer side of the curved track, and the tangent line is perpendicular to the first auxiliary line. For example, the tangent line is as follows: Figure 2l2 shown, and then the outer side of the first straight track connected to the first end A of the curved track is extended, and the intersection A1 of the extension line and the second auxiliary line can be used as the first position of the ground base station relative to the track, and the outer side of the second straight track connected to the second end B of the curved track is extended, and the intersection B1 of the extension line and the second auxiliary line can be used as the second position of the ground base station relative to the track. Figure 2 The sector area (C1 and C2) in is the first ground base station coverage model, and the sector area (C3 and C4) is the second ground base station coverage model. Therefore, it can be determined that the intersection of the curved track tangent perpendicular to the first auxiliary line and the extension line of the straight track is the position where the two ground base stations in the flat curved track area have the maximum coverage. In other words, the ground base stations can be set at the positions of A1 and B1, so that the ground base stations cover the track to the maximum extent.

[0070] In another embodiment, if Figure 3 As shown, when the central angle of the curved segment is less than 90 degrees, the process of determining the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved segment and the curved track position, the curved track position and the straight track position may specifically include:

[0071] Determine an extension line of an outer side of the first linear track according to a position of the first linear track connected to the first end of the curved track;

[0072] Determine an extension line of an outer side of the second linear track according to a position of the second linear track connected to the second end of the curved track;

[0073] The intersection of the extended line of the outer side of the first linear track and the extended line of the outer side of the second linear track is used as the position of the ground base station relative to the track.

[0074] It should be noted that when the central angle θ of the curve segment is less than 90 degrees, Figure 3 The high-speed maglev millimeter wave flat curve track coverage model shown in the figure is composed of straight line segment 1, curve segment and straight line segment 2. The ground base station coverage model can refer to Figure 3 In the two fan-shaped parts C5 and C6, when the half-power angle of the electromagnetic wave emitted by the ground base station on one side coincides with the outer side of the straight line segment 1 (the first straight track), and the half-power angle of the electromagnetic wave emitted on the other side coincides with the outer side of the track straight line segment 2 (the second straight track), the effective coverage area of ​​the track by the electromagnetic wave emitted by the ground base station is the largest. It can be known that the intersection of the extension lines of the outer sides of the straight line segment 1 and the straight line segment 2 is the best location for the ground base station to be installed. That is, in the embodiment of the present invention, the outer side of the first straight track can be extended, and the outer side of the second straight track can be extended. The intersection of the two extension lines is the position of the ground base station relative to the track when the ground base station covers the longest track length.

[0075] S130: Determine the position of the ground base station relative to the track as the site selection position of the ground base station.

[0076] It can be understood that, when it is determined that the ground base station covers the maximum length of the track, after the position of the ground base station relative to the track, the position can be determined as the site selection location of the ground base station, that is, in actual applications, a ground base station can be set at this position, and thus a ground base station can be set at the site selection location to ensure that the ground base station can cover the required length of the high-speed maglev millimeter-wave flat curve track.

[0077] It should also be noted that in order to improve the effective coverage of the high-speed maglev millimeter wave ground base station, the ground base station will perform beamforming design on the electromagnetic wave beam emitted by the ground base station during design, so as to achieve the concentration of beam energy and thus achieve long-distance transmission. High-speed maglev millimeter wave beamforming is achieved by limiting the horizontal half-power angle and vertical half-power angle of the emitted electromagnetic wave. Usually the horizontal half-power angle is 5°, 20° and 30°, and the vertical half-power angle is 5°. Please refer to Figures 4 to 5 , Figure 4 A schematic diagram of a half-power angle in the vertical direction of a ground base station provided in an embodiment of the present invention, Figure 5 A schematic diagram of the half-power angle of a ground base station in the horizontal direction provided by an embodiment of the present invention. In practical applications, the coverage model of the millimeter wave ground base station can be equivalent to a square cone for calculation. According to the FSPL formula, its mathematical model can be obtained as follows:

[0078] ,This model is the wireless signal coverage model of the high-speed maglev millimeter wave ground base station. Indicates the radio signal coverage range of the millimeter wave ground base station, in m 3 , Indicates the half-power angle of the ground base station in the vertical direction, It represents the half-power angle of the ground base station in the horizontal direction, and d represents the maximum distance when the radio signal power transmitted by the ground base station is higher than the available standard for reception by the vehicle-mounted base station.

[0079] The calculation formula of d can be obtained from the FSPL model and the atmospheric attenuation coefficient of 38G millimeter waves:

[0080] , which is the formula for calculating the maximum distance d when the radio signal power emitted by the high-speed maglev millimeter wave ground base station is higher than the available standard for receiving by the vehicle-mounted base station, where, represents the wavelength of the millimeter wave, Represents the gain of the ground base station antenna, in db; Represents the gain of the vehicle-mounted mobile base station, in db; Indicates the transmission power of the ground base station, the unit is dBm, Indicates the receiving sensitivity of the vehicle-mounted mobile base station, in dBm; It represents the atmospheric attenuation coefficient of the frequency band where the high-speed maglev millimeter wave communication system is located, and the unit is db / km.

[0081] According to the wireless signal coverage model of the ground base station combined with the above method, it can be effectively verified that the ground base station site selection position determined by the embodiment of the present invention can maximize the coverage track length of the ground base station.

[0082] It can be seen that the embodiment of the present invention establishes a high-speed maglev millimeter-wave flat curve track coverage model, and further calculates the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter-wave flat curve track coverage model. This position can better cover the edge of the cell with signals, so the position of the ground base station relative to the track can be determined as the site selection location of the ground base station; the method in the present invention can accurately determine the site selection location of the ground base station, which is conducive to reducing the cost of station deployment, increasing the signal coverage range of the cell edge position, and improving the performance of the millimeter wave system equipment.

[0083] The present invention also provides a corresponding device for the method for selecting a millimeter wave base station site for a maglev flat curve track section, which further makes the method more practical. Among them, the device can be described from the perspective of functional modules and hardware. The following is an introduction to the millimeter wave base station site selection device for a maglev flat curve track section provided by the present invention. The device is used to implement the method for selecting a millimeter wave base station site for a maglev flat curve track section provided by the present invention. In this embodiment, the millimeter wave base station site selection device for a maglev flat curve track section may include or be divided into one or more program modules, which are stored in a storage medium and executed by one or more processors to complete the method for selecting a millimeter wave base station site for a maglev flat curve track section disclosed in the above embodiment. The program module referred to in the present invention refers to a series of computer program instruction segments that can complete specific functions, which is more suitable for describing the execution process of the millimeter wave base station site selection device for a maglev flat curve track section in a storage medium than the program itself. The following description will specifically introduce the functions of each program module in this embodiment. The millimeter wave base station site selection device for a maglev flat curve track section described below and the method for selecting a millimeter wave base station site for a maglev flat curve track section described above can be referred to each other.

[0084] From the perspective of functional modules, see Figure 6 , Figure 6 The present invention provides a structural diagram of a millimeter wave base station site selection device for a maglev flat curve track section, which may include:

[0085] Establishing module 11, for establishing a high-speed maglev millimeter wave flat curve track coverage model;

[0086] The processing module 12 is used to calculate the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter wave flat curve track coverage model;

[0087] The determination module 13 is used to determine the position of the ground base station relative to the track as the site selection position of the ground base station.

[0088] In one embodiment, the processing module 12 includes:

[0089] A first acquisition unit is used to acquire the center angle of the curved track of the high-speed maglev millimeter wave flat curved track;

[0090] A first determining unit is used to determine the curved track position and the straight track position according to the high-speed maglev millimeter wave flat curved track coverage model;

[0091] The second determination unit is used to determine the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved track and the curved track position, the curved track position and the straight track position.

[0092] In one implementation, when the central angle of the curved track is greater than or equal to 90 degrees, the second determining unit includes:

[0093] The first determining subunit is used to determine the position of the first auxiliary line according to the center angle of the curved track; the first auxiliary line bisects the center angle of the curved track;

[0094] The second determining subunit is used to determine the position of the second auxiliary line according to the first auxiliary line and the position of the curved track; the second auxiliary line is a tangent line on the curved track and is perpendicular to the first auxiliary line;

[0095] A third determining subunit is used to use the intersection of the extended line of the outer side of the first straight track connected to the first end of the curved track and the second auxiliary line as the first position of the ground base station relative to the track;

[0096] The fourth determining subunit is used to use the intersection of the extended line of the outer side of the second straight track connected to the second end of the curved track and the second auxiliary line as the second position of the ground base station relative to the track.

[0097] In one implementation, when the central angle of the curve segment is less than 90 degrees, the second determining unit includes:

[0098] a fifth determining subunit, configured to determine an extension line of an outer side of the first linear track according to a position of the first linear track connected to the first end of the curved track;

[0099] a sixth determining subunit, configured to determine an extension line of an outer side of the second linear track according to a position of the second linear track connected to the second end of the curved track;

[0100] The seventh determination subunit is used to use the intersection of the extension line of the outer side of the first linear track and the extension line of the outer side of the second linear track as the position of the ground base station relative to the track.

[0101] In one embodiment, the high-speed maglev millimeter-wave flat curve track coverage model is constructed based on the width of the maglev train's onboard mobile base station antenna, the maximum gap between the maglev train's guide electromagnet and the track, the height of the maglev train's onboard mobile base station antenna, and the maximum gap between the maglev train's suspension electromagnet and the track.

[0102] In one embodiment, the high-speed maglev millimeter-wave flat curve track coverage model is constructed based on the width of the maglev train's onboard mobile base station antenna, the maximum gap between the maglev train's guide electromagnet and the track, the height of the maglev train's onboard mobile base station antenna, and the maximum gap between the maglev train's suspension electromagnet and the track, and combined with the first relationship.

[0103] In one embodiment, the first relationship is:

[0104] ;

[0105] in, Indicates the track area of ​​the high-speed maglev millimeter wave flat curve track that needs to be covered by the ground base station; Indicates the width of the mobile base station antenna on the maglev train. Indicates the maximum gap between the guide electromagnet and the track of the maglev train. Indicates the height of the mobile base station antenna on the maglev train. It represents the maximum gap between the suspension electromagnet and the track of the maglev train, n represents the center angle of the flat curve track, and r represents the radius of the flat curve track.

[0106] It should be noted that the millimeter wave base station site selection device for a maglev flat curve track section provided in the embodiment of the present invention has the same beneficial effects as the millimeter wave base station site selection method for a maglev flat curve track section provided in the above embodiment, and for the specific introduction of the millimeter wave base station site selection method for a maglev flat curve track section involved in the embodiment of the present invention, please refer to the above embodiment, and this application will not repeat it here.

[0107] The millimeter wave base station site selection device for the maglev flat curve track section mentioned above is described from the perspective of functional modules. Furthermore, the present invention also provides an electronic device, which is described from the perspective of hardware. Figure 7 A structural diagram of an electronic device provided in an embodiment of the present application, such as Figure 7 As shown, the electronic device includes: a memory 20 for storing a computer program;

[0108] The processor 21 is used to implement the steps of the method for selecting a millimeter wave base station site for a maglev flat curve track section as described in the above embodiment when executing a computer program.

[0109] The electronic device provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0110] Among them, the processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor 21 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 21 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 21 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0111] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the memory 20 may be an internal storage unit of an electronic device, such as a hard disk of a server. In other embodiments, the memory 20 may also be an external storage device of an electronic device, such as a plug-in hard disk equipped on a server, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. Further, the memory 20 may also include both an internal storage unit and an external storage device of an electronic device. The memory 20 can not only be used to store application software and various types of data installed in the electronic device, such as: the code of the program in the process of executing the method for selecting the millimeter wave base station site for the maglev flat curve track section, but also can be used to temporarily store data that has been output or is to be output. In this embodiment, the memory 20 is at least used to store the following computer program 201, wherein the computer program, after being loaded and executed by the processor 21, can implement the relevant steps of the method for selecting the site of the millimeter wave base station in the maglev flat curve track section disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 202 may include Windows, Unix, Linux, etc. Data 203 may include but is not limited to (data corresponding to the site selection results of the millimeter wave base station in the maglev flat curve track section) and the like.

[0112] In some embodiments, the electronic device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26. Among them, the display screen 22 and the input / output interface 23, such as a keyboard, belong to the user interface, and the optional user interface may also include a standard wired interface, a wireless interface, and the like. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, and the like. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device and to display a visual user interface. The communication interface 24 may optionally include a wired interface and / or a wireless interface, such as a WI-FI interface, a Bluetooth interface, and the like, which are generally used to establish a communication connection between the electronic device and other electronic devices. The communication bus 26 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, and the like. The bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, Figure 7 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0113] Those skilled in the art will understand that Figure 7 The structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure.

[0114] It is understandable that if the method for selecting the millimeter wave base station site for the flat curve track section of the maglev in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or partly contributed to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), electrically erasable programmable ROM, register, hard disk, removable disk, CD-ROM, disk or optical disk and other media that can store program code.

[0115] Based on this, an embodiment of the present invention also 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 method for selecting a millimeter wave base station for a flat curve track section of a maglev are implemented as described above.

[0116] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0117] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0118] 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 may 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 rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for selecting a millimeter wave base station site for a maglev flat curved track section, characterized in that: include: Establish a high-speed maglev millimeter wave flat curve track coverage model; The position of the ground base station relative to the track is calculated according to the high-speed maglev millimeter wave flat curve track coverage model when the ground base station covers the maximum track length; The position of the ground base station relative to the track is determined as the site selection position of the ground base station.

2. The method for selecting a millimeter wave base station site for a maglev flat curve track section according to claim 1, characterized in that: The position of the ground base station relative to the track when the ground base station coverage track length is the maximum calculated according to the high-speed maglev millimeter wave flat curve track coverage model includes: Obtain the center angle of the curved track of the high-speed maglev millimeter wave flat curved track; Determine the curved track position and the straight track position according to the high-speed maglev millimeter wave flat curved track coverage model; The position of the ground base station relative to the track when the ground base station covers the maximum track length is determined according to the central angle of the curved track and the curved track position, the curved track position and the straight track position.

3. The method for selecting a millimeter wave base station site for a maglev flat curve track section according to claim 2, characterized in that: When the central angle of the curved track is greater than or equal to 90 degrees, determining the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved track and the curved track position, the curved track position and the straight track position, includes: Determine the position of a first auxiliary line according to the center angle of the curved track; the first auxiliary line bisects the center angle of the curved track; Determine the position of a second auxiliary line according to the first auxiliary line and the position of the curved track; the second auxiliary line is a tangent line on the curved track and is perpendicular to the first auxiliary line; Taking the intersection of the extended line of the outer side of the first straight track connected to the first end of the curved track and the second auxiliary line as the first position of the ground base station relative to the track; The intersection of the extended line of the outer side of the second straight track connected to the second end of the curved track and the second auxiliary line is used as the second position of the ground base station relative to the track.

4. The method for selecting a millimeter wave base station site for a maglev flat curve track section according to claim 2, characterized in that: When the central angle of the curved segment is less than 90 degrees, determining the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the central angle of the curved segment and the curved track position, the curved track position and the straight track position, comprises: Determining an extension line of an outer side of the first linear track according to a position of the first linear track connected to the first end of the curved track; Determining an extension line of an outer side of the second linear track according to a position of the second linear track connected to the second end of the curved track; The intersection of the extended line of the outer side of the first linear track and the extended line of the outer side of the second linear track is used as the position of the ground base station relative to the track.

5. The method for selecting a millimeter wave base station site for a maglev flat curve track section according to any one of claims 1 to 4, characterized in that: The high-speed maglev millimeter-wave flat curve track coverage model is constructed based on the width of the maglev train onboard mobile base station antenna, the maximum gap between the maglev train guide electromagnet and the track, the height of the maglev train onboard mobile base station antenna and the maximum gap between the maglev train suspension electromagnet and the track.

6. The method for selecting a millimeter wave base station site for a maglev flat curve track section according to claim 5, characterized in that: The high-speed maglev millimeter-wave flat curve track coverage model is constructed based on the width of the maglev train onboard mobile base station antenna, the maximum gap between the maglev train guide electromagnet and the track, the height of the maglev train onboard mobile base station antenna and the maximum gap between the maglev train suspension electromagnet and the track, and combined with the first relationship.

7. The method for selecting a millimeter wave base station site for a maglev flat curve track section according to claim 6, characterized in that: The first relation is: ； in, Indicates the track area of ​​the high-speed maglev millimeter wave flat curve track that needs to be covered by the ground base station; Indicates the width of the mobile base station antenna on the maglev train. Indicates the maximum gap between the guide electromagnet and the track of the maglev train. Indicates the height of the mobile base station antenna on the maglev train. It represents the maximum gap between the suspension electromagnet and the track of the maglev train, n represents the center angle of the flat curve track, and r represents the radius of the flat curve track.

8. A millimeter wave base station site selection device for a maglev flat curve track section, characterized in that: include: Establish a module for building a high-speed maglev millimeter wave flat curve track coverage model; A processing module, configured to calculate the position of the ground base station relative to the track when the ground base station covers the maximum track length according to the high-speed maglev millimeter wave flat curve track coverage model; The determination module is used to determine the position of the ground base station relative to the track as the site selection position of the ground base station.

9. An electronic device, characterized in that: include: Memory for storing computer programs; A processor is used to implement the steps of the method for selecting millimeter wave base stations for a maglev flat curve track section as described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for selecting a millimeter wave base station site for a maglev flat curve track section as described in any one of claims 1 to 7.

Images