Method and device for determining installation position of antenna, and electronic equipment

Abstract

The invention discloses a method and a device for determining an antenna installation position, and electronic equipment. The method comprises the steps that an indoor plane structure chart of an underground garage is acquired, and the indoor plane structure chart is used for determining structure data; according to the structural data, determining that the power value received by the terminal is greater than the farthest coverage distance of the preset minimum receiving power; and according to the farthest coverage distance, the antenna installation position in the underground garage is determined. The technical problems that a traditional indoor distributed antenna system is high in manufacturing cost and too many in information source and antenna number in an underground garage scene are solved.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a method, device, and electronic device for determining an antenna installation position. Background Art

[0002] In some underground parking lots, severe signal shielding by buildings results in poor communication signal quality, severely impacting the user experience of wireless networks. Traditional indoor distributed antenna systems are often used to improve communication signal quality within buildings. These systems utilize feeder lines to transmit the signal from the signal source to distributed antennas located indoors, ensuring comprehensive signal coverage. Traditional indoor distributed systems typically utilize numerous signal sources, antennas, feeder lines, combiners, couplers, power splitters, and other components during construction. This results in extensive construction, long construction times, high costs, and an excessive number of signal sources and antennas.

[0003] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0004] The embodiments of the present application provide a method, device, and electronic device for determining antenna installation locations, to at least address the technical problems of high construction costs and excessive number of signal sources and antennas in traditional indoor distributed antenna systems in underground garage scenarios.

[0005] According to one aspect of an embodiment of the present application, a method for determining an antenna installation position is provided, including: obtaining an indoor plan structure diagram of an underground garage, wherein the indoor plan structure diagram is used to determine structural data; based on the structural data, determining a maximum coverage distance at which a power value received by a terminal is greater than a preset minimum receiving power; based on the maximum coverage distance, determining the antenna installation position in the underground garage.

[0006] Optionally, based on the structural data, the farthest coverage distance at which the power value received by the terminal is greater than the preset minimum receiving power is determined, including: determining the signal quality data based on the structural data; determining the signal end power based on the signal quality data; and determining the farthest coverage distance based on the signal end power and the preset minimum receiving power.

[0007] Optionally, the path loss in the signal quality data is determined in the following manner: any wall perpendicular to the channel in the indoor plan structure diagram is determined as the first wall, one of the vertices of the first wall is determined as the first initial point, and the other vertex of the first wall is determined as the second initial point, wherein the channel is in the middle position in the indoor plan structure diagram; the direction of the line connecting the first initial point and the second initial point is determined as the first initial direction, and the angle between the line connecting the position point on the center line of the channel and the first initial point and the line corresponding to the first initial direction is determined as the first cross angle; the path loss is determined based on the length of the first wall, the transmission frequency of the signal source device and the first cross angle; or, the direction of the line connecting the second initial point and the first initial point is determined as the second initial direction, and the angle between the line connecting the position point on the center line of the channel and the second initial point and the line corresponding to the second initial direction is determined as the second cross angle; the path loss is determined based on the length of the first wall, the transmission frequency of the signal source device and the second cross angle.

[0008] Optionally, the farthest coverage distance is determined based on the signal end power and the preset minimum receiving power, including: when the first cross angle increases according to the preset step size, each time the preset angle is increased, the corresponding position point and cross angle are determined to obtain the first position point and the third cross angle; based on the third cross angle, the first signal end power corresponding to the first position point is determined, and when the first signal end power is less than the preset minimum receiving power, the third cross angle is increased by the preset angle to obtain the fourth cross angle and the second position point; based on the fourth cross angle, the second signal end power corresponding to the second position point is determined, and when the second signal end power is less than the preset minimum receiving power, the preset angle is subtracted from the third cross angle to obtain the first target cross angle; based on the first target cross angle, the first farthest coverage distance is determined, wherein the farthest coverage distance includes the first farthest coverage distance.

[0009] Optionally, the farthest coverage distance is determined based on the signal end power and the preset minimum receiving power, including: when the second cross angle increases according to the preset step size, each time the preset angle is increased, the corresponding position point and cross angle are determined to obtain a third position point and a fifth cross angle; based on the fifth cross angle, the third signal end power corresponding to the third position point is determined, and when the third signal end power is less than the preset minimum receiving power, the fifth cross angle is increased by the preset angle to obtain a sixth cross angle and a fourth position point; based on the sixth cross angle, the fourth signal end power corresponding to the fourth position point is determined, and when the fourth signal end power is less than the preset minimum receiving power, the preset angle is subtracted from the fifth cross angle to obtain a second target cross angle; based on the second target cross angle, the second farthest coverage distance is determined, wherein the farthest coverage distance includes the second farthest coverage distance.

[0010] Optionally, the antenna installation position in the underground garage is determined based on the farthest coverage distance, including: determining the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determining the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; determining the intersection of the center line of the channel and the first connecting line as the first intersection point, wherein the first connecting line is the line connecting the first initial point and the second initial point; determining the first distance from the first target position point to the first intersection point, and determining the second distance from the second target position point to the first intersection point; determining the position point corresponding to the minimum value of the first distance and the second distance as the antenna installation position.

[0011] Optionally, based on the farthest coverage distance, the antenna installation position in the underground garage is determined, including: determining the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determining the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; determining the intersection of the center line of the channel and the first connecting line as the first intersection point, wherein the first connecting line is the line connecting the first initial point and the second initial point; determining a first distance from the first target position point to the first intersection point, and determining a second distance from the second target position point to the first intersection point; moving from the first intersection point as the starting point along the center line of the channel toward the inner side of the wall, and determining a set of position points of the first intersection point that meet the first condition during the movement, wherein the set of position points is determined as follows: determining the first intersection point at the first position point relative to the first intersection point The corresponding first position signal terminal power is determined. When the first position signal terminal power is less than the preset minimum receiving power, the second position signal terminal power corresponding to the first intersection point at the second position point is determined, and the second position point is the position point corresponding to the intersection angle corresponding to the first position point plus the preset angle; when the second position signal terminal power is less than the preset minimum receiving power, the position point corresponding to the intersection angle corresponding to the first position point minus the preset angle is determined as the target position point, wherein the target position point is the position point that meets the first condition; a position point set is determined based on the target position point; the third distance between each position point in the position point set and the first target position point and the fourth distance between each position point and the second target position point are determined, and the position point corresponding to the maximum value of the third distance and the fourth distance is determined as the antenna installation position.

[0012] Optionally, the method also includes: determining the seventh cross angle corresponding to the antenna installation position, wherein the seventh cross angle is the angle between the line connecting the point on the second wall and the antenna installation position and the second line, the second line is a parallel line connecting the first initial point and the second initial point, and passes through the antenna installation position, and the second wall is any wall parallel to the channel; when the seventh cross angle is increased according to a preset step size, the signal end power of the antenna installation position to the left and right edges is determined, and the left signal end power and the right signal end power are obtained; when the left signal end power and the right signal end power are both less than the preset minimum receiving power twice in a row, the coverage range of the installed antenna is determined.

[0013] Optionally, after determining the coverage of the installed antenna, the method further includes: obtaining the spatial distribution of the underground garage and the coverage of the antenna; and determining the number of antennas required for the underground garage and the installation position of each antenna based on the spatial distribution and the coverage of the antenna.

[0014] Optionally, the method further includes: determining a target angle formed by the first initial point, the antenna installation position, and the second initial point; and determining an installation direction of the antenna based on the target angle.

[0015] Optionally, the installation direction of the antenna is determined based on the target angle, including: when the target angle is less than or equal to 90 degrees, determining that the installation direction of the antenna is parallel to the channel; when the target angle is greater than 90 degrees, determining that the installation direction of the antenna is perpendicular to the channel.

[0016] According to another aspect of an embodiment of the present application, a device for determining an antenna installation position is also provided, including: an acquisition module for acquiring an indoor plan structure diagram of an underground garage, wherein the indoor plan structure diagram is used to determine structural data; a first determination module for determining, based on the structural data, a maximum coverage distance at which the power value received by the terminal is greater than a preset minimum receiving power; and a second determination module for determining the antenna installation position in the underground garage based on the maximum coverage distance.

[0017] According to another aspect of the embodiment of the present application, an electronic device is also provided, including: a memory for storing program instructions; a processor, connected to the memory, for executing program instructions to implement the following functions: obtaining an indoor plan structure diagram of an underground garage, wherein the indoor plan structure diagram is used to determine structural data; based on the structural data, determining the farthest coverage distance at which the power value received by the terminal is greater than a preset minimum receiving power; based on the farthest coverage distance, determining the antenna installation position in the underground garage.

[0018] According to another aspect of the embodiments of the present application, a non-volatile storage medium is provided, which includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the above-mentioned method for determining the antenna installation position by running the computer program.

[0019] According to another aspect of the embodiments of the present application, a computer program product is provided, including computer instructions, which implement the above-mentioned method for determining the antenna installation position when executed by a processor.

[0020] In an embodiment of the present application, by obtaining an indoor plan structure diagram of an underground garage, wherein the indoor plan structure diagram is used to determine structural data; based on the structural data, determining the farthest coverage distance at which the power value received by the terminal is greater than the preset minimum receiving power; based on the farthest coverage distance, determining the antenna installation position in the underground garage, the purpose of optimizing network coverage and improving communication quality is achieved, thereby achieving the technical effect of reducing construction costs and reducing the number of antennas, and further solving the technical problems of high construction costs, excessive number of signal sources and antennas in traditional indoor distributed antenna systems in underground garage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 is a hardware structure block diagram of a computer terminal for implementing a method for determining an antenna installation position according to an embodiment of the present application;

[0023] Figure 2 is a flow chart of a method for determining an antenna installation position according to an embodiment of the present application;

[0024] Figure 3 This is signal test data of an underground garage closed scene according to an embodiment of the present application;

[0025] Figure 4 This is a loss comparison of the distance signal strength corresponding to each frequency band according to an embodiment of the present application;

[0026] Figure 5 is a relationship curve between coverage gain and coverage radius according to an embodiment of the present application;

[0027] Figure 6 1 is a schematic diagram of the positions of L0 and R0 according to an embodiment of the present application;

[0028] Figure 7 is a schematic diagram of the coverage range of any antenna according to an embodiment of the present application;

[0029] Figure 8 is a schematic diagram of radiation generated by a wire according to an embodiment of the present application;

[0030] Figure 9 is a schematic diagram of radiation according to an embodiment of the present application;

[0031] Figure 10 Schematic diagram of an antenna with a large horizontal beam angle of 65 degrees and 90 degrees according to an embodiment of the present application;

[0032] Figure 11 is a schematic diagram of an improved antenna transmission method according to an embodiment of the present application;

[0033] Figure 12 is a schematic diagram of an antenna installation direction according to an embodiment of the present application;

[0034] Figure 13 The number and installation positions of antennas according to an embodiment of the present application;

[0035] Figure 14 This is a signal coverage rendering effect diagram according to an embodiment of the present application;

[0036] Figure 15 is a schematic diagram of a double L-shaped baffle according to an embodiment of the present application;

[0037] Figure 16 1 is a schematic diagram of an RSRP level value signal according to an embodiment of the present application;

[0038] Figure 17 1 is a schematic diagram of a SINR level value signal according to an embodiment of the present application;

[0039] Figure 18 This is a structural diagram of a device for determining an antenna installation position according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] The information collected in the embodiments of the present application is information and data authorized by the user or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of the relevant data comply with the relevant laws, regulations and standards of the relevant regions, take necessary confidentiality measures, do not violate public order and good morals, and provide corresponding operation entrances for users to choose to authorize or reject the automated decision results; if the user chooses to reject, the expert decision-making process will be entered.

[0043] In order to solve the problems existing in the related art, the embodiment of the present application provides a method for determining the installation position of an antenna, which can be run on Figure 1 In the computer terminal shown, the computer terminal is explained below.

[0044] The method for determining the antenna installation position provided in the embodiment of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 The hardware structure block diagram of a computer terminal for implementing a method for determining the antenna installation position is shown. Figure 1 As shown, the computer terminal 10 may include one or more (illustrated by 102a, 102b, ..., 102n in the figure) processors (the processor may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission module 106 for communication functions connected via a wired and / or wireless network. In addition, it may also include: a display, a keyboard, a cursor control device, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, and a BUS bus. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0045] It should be noted that the one or more processors and / or other data processing circuits described above may generally be referred to herein as "data processing circuitry." The data processing circuitry may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuitry may be a single, independent processing module, or may be incorporated in whole or in part into any of the other components of the computer terminal 10. As described in the embodiments of the present application, the data processing circuitry serves as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0046] Memory 104 can be used to store software programs and modules for application software, such as the program instructions / data storage device corresponding to the method for determining the antenna installation position in the embodiments of the present application. The processor executes the software programs and modules stored in memory 104 to execute various functional applications and data processing, thereby implementing the above-mentioned method for determining the antenna installation position. Memory 104 can include high-speed random access memory (RAM) and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 can further include memory remotely located relative to the processor, and such remote memory can be connected to computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0047] The transmission module 106 is configured to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by the communications provider of the computer terminal 10. In one embodiment, the transmission module 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission module 106 may be a radio frequency (RF) module, which is configured to communicate with the Internet wirelessly.

[0048] The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computer terminal 10 .

[0049] It should be noted that, in some optional embodiments, the above Figure 1 The computer terminal shown may include hardware elements (including circuits), software elements (including computer code stored on a computer-readable medium), or a combination of hardware elements and software elements. Figure 1This is merely one example of a particular embodiment and is intended to illustrate the types of components that may be present in the computer terminal described above.

[0050] In the above-mentioned operating environment, an embodiment of the present application provides an embodiment of a method for determining the installation position of an antenna. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0051] Figure 2 is a flow chart of a method for determining an antenna installation position according to an embodiment of the present application, such as Figure 2 As shown, the method includes the following steps:

[0052] Step S202: Acquire an indoor plan structure diagram of the underground garage, wherein the indoor plan structure diagram is used to determine structural data.

[0053] In step S202, the indoor plan structure diagram includes the total area of the underground garage and the spatial distribution of various areas, such as parking spaces and passageways. It also includes the specific locations of walls, doors, columns, and beams within the underground garage, as well as their sizes and thicknesses. These structures shield and absorb wireless signals, so their material properties (such as concrete, steel, and glass) are required to calculate different penetration losses. This spatial distribution, location, size, thickness, and other information constitute the structural data.

[0054] Step S204: determining, based on the structure data, the maximum coverage distance at which the power value received by the terminal is greater than a preset minimum receiving power.

[0055] In the above step S204, the minimum receiving power PT is preset min It is a pre-set threshold value used to ensure that the terminal can maintain sufficient communication quality and stability when receiving the signal. The power value P at the end of the signal is determined based on the structural data. end , P end It is the remaining power of the signal after all expected attenuation and reaching the farthest potential receiving point. end With PT min Compare. If P end Greater than PT min , it means that the signal is still strong enough at the farthest end to be received and processed by the terminal. By continuously adjusting the calculation parameters (such as antenna position, transmission unit power), until a position or a set of parameter configurations is found so that P end Lower than PT for the first time min Until then. At this point, record the last condition that satisfies P end >PT minThe location point and distance is the farthest coverage distance.

[0056] Step S206: Determine the antenna installation location in the underground garage based on the longest coverage distance.

[0057] In the above step S206, the purpose of this step is to enable the antenna to cover as large an underground garage area as possible under limited power while maintaining the signal strength not lower than PT min .

[0058] Through steps S202 to S206 above, the goal of optimizing network coverage and improving communication quality is achieved, thereby achieving the technical effect of reducing construction costs and the number of antennas. This solves the technical problems of traditional indoor distributed antenna systems in underground parking scenarios, such as high construction costs and excessive number of signal sources and antennas. This is explained below.

[0059] In step S204 of the above-mentioned method for determining the antenna installation position, the farthest coverage distance at which the power value received by the terminal is greater than the preset minimum receiving power is determined based on the structural data, including: determining the signal quality data based on the structural data; determining the signal end power based on the signal quality data; and determining the farthest coverage distance based on the signal end power and the preset minimum receiving power.

[0060] In some embodiments of the present application, the structural data in the indoor plan structure diagram include the geometric dimensions (such as length, width and height) and area of the underground garage, the size and thickness of the walls, doors, frame beams, and the distribution. By redefining the coverage signal of the actual space of the indoor plan structure diagram, the 3GPP protocol stipulates that the range of RSRP (Reference Signal Received Power) reported by the terminal is [-140dBm, -44dBm]. In dense urban areas, general urban areas and key traffic arteries, continuous coverage composed of multiple base stations will inevitably produce a certain overlapping coverage coefficient between base stations, which may cause mutual interference between signals, so the RSRP value must be greater than -105dBm. It can effectively reduce the probability of base station demodulation failure, otherwise it is easy to have problems such as access difficulty, dropped calls, reduced data rate performance, and weak coverage. Definition of network coverage indicators for conventional deployment: RSRR>=-105dBm&SINR (Signal-to-Interference-plus-Noise Ratio)>=-3dB; in the closed scenario of underground garages, the wireless signal is pure, there is little interference between signals, and the base station demodulation capability is strong. Secondly, users have relatively few demands on the network and do not have high speed requirements. Through the analysis of 1638 combined data of signal sampling tests in closed scenarios of underground garages, when the RSRP reported by the terminal is -115dBm, the edge rate can reach more than 12Mbps / s, meeting user needs. Therefore, in the underground garage scenario, the coverage rate is corrected from the original RSRP>-105dBm to RSRP>-115dBm, and a new definition of underground garage coverage is proposed. New standard definition of network coverage for underground garage coverage deployment: RSRP>=-115dBm&SINR>=-3dB; Signal test data (SINR, RSRP and rate) for closed scenarios of underground garages are as follows Figure 3 shown.

[0061] Conventional 7 / 8 feeder performance indicators: As the feeder length increases, its loss will also increase accordingly. When the feeder length is 100 meters, the signal attenuation is too large, affecting network coverage. The feeder length loss table (the leftmost column indicates the feeder length, the upper two rows indicate the standard, and the remaining data indicates the corresponding loss) is as follows:

[0062]

[0063]

[0064] Experiments were conducted on feeder lengths. Coverage was verified for 7 / 8 feeder lengths of 20 meters, 50 meters, 100 meters, 150 meters, and 200 meters. In a closed basement scenario, the verification results showed that even with a 200-meter feeder length, the attenuation level could still guarantee coverage quality. Using longer feeder wiring can effectively reduce signal sources and antennas, saving antenna costs while ensuring coverage quality. The experimental results are shown in the following table:

[0065]

[0066] The electromagnetic wave path loss calculation method adopted is formed by adding reference quantities such as the reference signal power, antenna gain, and ground stop area of the transmitting unit (such as the source device). After inputting the obtained structural data such as the area and indoor wall thickness into the calculation tool, the maximum coverage distance at which the power value received by the terminal is greater than -115dBm (that is, the above-mentioned preset minimum receiving power) is calculated based on the initial power value of the source device, the conventional antenna model, gain size, coverage lobe angle, and indoor signal attenuation value.

[0067] The difference in propagation loss in different frequency bands: Under the condition of a given power level, the lower the frequency, the longer the coverage distance; under the condition of a given distance, the lower the frequency, the stronger the signal and the better the coverage. Figure 4 Comparison of the loss corresponding to the distance signal strength in each frequency band.

[0068] The relationship curve between coverage gain and coverage radius is as follows: Figure 5 As shown: For every 3dB increase in coverage gain, the coverage radius increases by 20%.

[0069] Frequency Band Signal Attenuation Table Experiment Group: Based on the material properties and thickness of each material in the structure, the penetration loss of signals in different frequency bands was tested, and the calculated results were included in the penetration loss table. The experimental results are shown in the following table:

[0070]

[0071] The signal quality data is obtained based on the reference signal power value, antenna gain, feeder loss, penetration loss, and path loss of the source device (or transmitting unit), and the signal end power is determined based on the signal quality data. The maximum coverage distance is then determined based on the signal end power and the preset minimum receiving power.

[0072] In the above steps, the path loss in the signal quality data is determined by: determining any wall perpendicular to the channel in the indoor plan structure diagram as the first wall, determining one of the vertices of the first wall as the first initial point, and determining another vertex of the first wall as the second initial point, wherein the channel is located in the middle of the indoor plan structure diagram; determining the direction of the line connecting the first initial point and the second initial point as the first initial direction, and determining the angle between the line connecting the position point on the center line of the channel and the first initial point and the line corresponding to the first initial direction as the first intersection angle; determining the path loss based on the length of the first wall, the transmission frequency of the signal source device, and the first intersection angle; or determining the direction of the line connecting the second initial point and the first initial point as the second initial direction, and determining the angle between the line connecting the position point on the center line of the channel and the second initial point and the line corresponding to the second initial direction as the second intersection angle; determining the path loss based on the length of the first wall, the transmission frequency of the signal source device, and the second intersection angle.

[0073] In some embodiments of the present application, Figure 6 The path loss is explained. The path loss formula is as follows:

[0074] Path loss = (20log(W T / 2cosθ)+20lgTf+32.5)

[0075] Among them, W T is the length of the underground garage, i.e. the length of the first wall (V bl and V br , θ is the first cross angle, Tf is the transmission frequency of the source device, V br is the first initial point, V bl is the second initial point, V br Towards V bl The connection direction is the first initial direction, V bl Towards V br The connecting direction is the second initial direction, R0, R1, R2, L0 are the position points on the center line of the channel, and the second intersection angle is as follows Figure 6 ∠L0V in bl V br .

[0076] In the above steps, the farthest coverage distance is determined based on the signal end power and the preset minimum receiving power, including: when the first cross angle increases according to the preset step size, each time the preset angle is increased, the corresponding position point and cross angle are determined to obtain the first position point and the third cross angle; according to the third cross angle, the first signal end power corresponding to the first position point is determined, and when the first signal end power is less than the preset minimum receiving power, the third cross angle is increased by the preset angle to obtain the fourth cross angle and the second position point; according to the fourth cross angle, the second signal end power corresponding to the second position point is determined, and when the second signal end power is less than the preset minimum receiving power, the preset angle is subtracted from the third cross angle to obtain the first target cross angle; the first farthest coverage distance is determined based on the first target cross angle, wherein the farthest coverage distance includes the first farthest coverage distance.

[0077] In some embodiments of the present application, the signal end power P end The calculation formula is as follows:

[0078] P end =(Pr+Ag-FL-PL)-(201g(W T / 2cosθ)+20lgTf+32.5)

[0079] Where Pr is the reference signal power value of the source device, Ag is the antenna gain, FL is the feeder loss, PL is the penetration loss, (20lg(W T / 2cosθ)+20lgTf+32.5) is the above path loss.

[0080] Select the first initial point V br As the end starting point, the first intersection angle is θ, the initial value of θ is 5 (degrees), and the step length is 5 (that is, the preset angle, or called the preset step length), θ=5+5+5+……, calculate V br The received power P at the point on the center line of the channel end .

[0081] If the first signal terminal power P end1 <Preset minimum receiving power PT min When the position point is recorded as the first position point R1 and the third intersection angle θ1, continue to calculate P end ;

[0082] If the second signal terminal power P end2 <PT min , record the second position point R2 and the fourth intersection angle θ2;

[0083] If θ2-θ1=5, it means that P appears continuously at the positions R1 and R2. end <PTmin , then record the previous position point R0 (i.e. the first target position point mentioned below) and the corresponding angle θ0 (i.e. the first target intersection angle mentioned above), where θ0 = θ1-5. When the first target intersection angle is determined, the first farthest coverage distance can be obtained, i.e. R0 and V br The distance between the lines.

[0084] In the above steps, the farthest coverage distance is determined based on the signal end power and the preset minimum receiving power, including: when the second cross angle increases according to the preset step size, each time the preset angle is increased, the corresponding position point and cross angle are determined to obtain a third position point and a fifth cross angle; based on the fifth cross angle, the third signal end power corresponding to the third position point is determined, and when the third signal end power is less than the preset minimum receiving power, the fifth cross angle is increased by the preset angle to obtain a sixth cross angle and a fourth position point; based on the sixth cross angle, the fourth signal end power corresponding to the fourth position point is determined, and when the fourth signal end power is less than the preset minimum receiving power, the preset angle is subtracted from the fifth cross angle to obtain a second target cross angle; based on the second target cross angle, the second farthest coverage distance is determined, wherein the farthest coverage distance includes the second farthest coverage distance.

[0085] In some embodiments of the present application, the second initial point V is selected bl As the end starting point, the initial value of the second intersection angle is 5 (degrees), and it increases with a step length of 5 (ie, the preset angle, or called the preset step length). Calculate V bl The received power P at the point on the center line of the channel end .

[0086] If the third signal terminal power P end3 <Preset minimum receiving power PT min When , record the position point as the third position point L1 and the fifth intersection angle θ3, Figure 6 Not shown, continue to calculate P end ;

[0087] If the fourth signal terminal power P end4 <PT min , record the fourth position point L2 and the sixth intersection angle θ4, Figure 6 Not shown;

[0088] If θ4-θ3=5, it means that P appears continuously at the positions L1 and L2. end <PT min, then record the previous position point L0 (i.e. the second target position point mentioned below) and the corresponding angle θ0' (i.e. the second target intersection angle mentioned above), where θ0' = θ3-5. When the second target intersection angle is determined, the second farthest coverage distance can be obtained, i.e. L0 and V bl The distance between the lines.

[0089] In step S206 of the above-mentioned method for determining the antenna installation position, the antenna installation position in the underground garage is determined based on the farthest coverage distance, including: determining the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determining the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; determining the intersection of the center line of the channel and the first connecting line as the first intersection point, wherein the first connecting line is the line connecting the first initial point and the second initial point; determining a first distance from the first target position point to the first intersection point, and determining a second distance from the second target position point to the first intersection point; and determining the minimum value of the first distance and the second distance as the antenna installation position.

[0090] In some embodiments of the present application, Figure 6 As shown, M b is the first intersection point, and the first connecting line is the first initial point V br With the second initial point V bl The line connecting the first target position point R0 and the second target position point L0 is determined. b The first distance of the second target position point L0 and the first intersection point M are determined. b the second distance; and determining the position point corresponding to the minimum value of the first distance and the second distance as the antenna installation position.

[0091] Specifically, using the comparative method, Figure 6 , calculate R0 to M respectively b The first distance from L0 to M b The second distance between the two is taken, and the point corresponding to the minimum distance between the two is taken as the antenna installation position, which is recorded as antenna installation position point A1; that is, the installation position of A1 can achieve coverage of the farthest terminal signal receiving power.

[0092] In step S206 of the above-mentioned method for determining the antenna installation position, the antenna installation position in the underground garage is determined based on the farthest coverage distance, including: determining the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determining the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; determining the intersection of the center line of the channel and the first connecting line as the first intersection point, wherein the first connecting line is the line connecting the first initial point and the second initial point; determining a first distance from the first target position point to the first intersection point, and determining a second distance from the second target position point to the first intersection point; moving from the first intersection point as the starting point along the center line of the channel toward the inner side of the wall, and determining a set of position points of the first intersection point that meet the first condition during the movement, wherein the set of position points is determined as follows: determining the first The terminal power of the first position signal corresponding to the intersection point at the first position point is determined. When the terminal power of the first position signal is less than the preset minimum receiving power, the terminal power of the second position signal corresponding to the first intersection point at the second position point is determined, and the second position point is the position point corresponding to the intersection angle corresponding to the first position point plus the preset angle; when the terminal power of the second position signal is less than the preset minimum receiving power, the position point corresponding to the intersection angle corresponding to the first position point minus the preset angle is determined as the target position point, wherein the target position point is the position point that meets the first condition; a position point set is determined based on the target position point; the third distance of each position point in the position point set from the first target position point and the fourth distance from the second target position point are determined, and the position point corresponding to the maximum value of the third distance and the fourth distance is determined as the antenna installation position.

[0093] In some embodiments of the present application, a moving point method may also be used, with the first intersection point M b Move inward from the starting point and determine M b During the movement, the distances from R0 and L0 are obtained to obtain the third distance and the fourth distance, and determine M b The first position signal end power at the first position point, the first position signal end power <PT min When M b Go to the second position point (the second position point is the position point corresponding to the intersection angle corresponding to the first position point plus the preset angle), and determine M b The second position signal end power at the second position point, the second position signal end power <PT min When the intersection angle corresponding to the first position point is subtracted from the preset angle, the position point corresponding to the intersection angle is determined as the target position point, and M is found. bA set of position points is obtained from all target position points during the movement process, and the maximum value of the third distance and the fourth distance is determined from the set of position points to obtain the antenna installation position, which can also achieve coverage of the farthest terminal signal receiving power.

[0094] In the above-mentioned method for determining the antenna installation position, the method also includes: determining the seventh cross angle corresponding to the antenna installation position, wherein the seventh cross angle is the angle between the line connecting the point on the second wall and the antenna installation position and the second line, the second line is a parallel line connecting the first initial point and the second initial point, and passes through the antenna installation position, and the second wall is any wall parallel to the channel; when the seventh cross angle is increased according to a preset step size, the signal end power of the antenna installation position to the left and right edges is determined, and the left signal end power and the right signal end power are obtained; when the left signal end power and the right signal end power are both less than the preset minimum receiving power twice in a row, the coverage range of the installed antenna is determined.

[0095] In some embodiments of the present application, the seventh intersection angle is Figure 6 Not shown, the second wall can be Figure 6 Medium V br and V tr The wall between, or V bl and V tl The point on the second wall can be Figure 6 M1 in the figure, if the antenna installation position A1 is determined to be L0, then the second connection line can be, for example, Figure 6 After determining the antenna installation position A1, increase the seventh cross angle (initial value is 5 degrees) by a preset step size (e.g., 5 degrees), and calculate the signal end power of A1 to the left and right edges respectively to obtain the left signal end power and the right signal end power. min In the case of , determine the left coverage range of the installed antenna (that is, the coverage range corresponding to the left signal end power before the left signal end power is less than the preset minimum received power twice in a row); in the case of the right signal end power being less than the preset minimum received power twice in a row, determine the right coverage range of the installed antenna (that is, the coverage range corresponding to the right signal end power before the right signal end power is less than the preset minimum received power twice in a row); based on the left coverage range and the right coverage range, determine the coverage range of the installed antenna, that is, the coverage range of the first group of antennas, such as Figure 7 As shown, the red area is the coverage range of any antenna determined.

[0096] In the above steps, after determining the coverage of the installed antennas, the method further includes: obtaining the spatial distribution of the underground garage and the coverage of the antennas; and determining the number of antennas required for the underground garage and the installation location of each antenna based on the spatial distribution and the coverage of the antennas.

[0097] In some embodiments of the present application, the minimum number of antennas and their installation locations required to achieve full coverage are calculated based on the spatial distribution of the underground garage and the coverage area of the antennas. For difficult-to-cover edge areas or blind spots, additional antennas or different antenna types (such as directional antennas, log-periodic antennas, etc.) are required to provide supplemental coverage.

[0098] In the above-mentioned method for determining the antenna installation position, the method further includes: determining a target angle formed by the first initial point, the antenna installation position, and the second initial point; and determining the installation direction of the antenna based on the target angle.

[0099] In the above steps, the installation direction of the antenna is determined based on the target angle, including: when the target angle is less than or equal to 90 degrees, the installation direction of the antenna is determined to be parallel to the channel; when the target angle is greater than 90 degrees, the installation direction of the antenna is determined to be perpendicular to the channel.

[0100] In some embodiments of the present application, the first initial point V br , antenna installation position A1 and the second initial point V bl The target angle formed is defined as α, and the antenna coverage direction is determined based on the target angle. By fully utilizing the antenna's radiation divergence and wide coverage characteristics, the antenna is installed in an open space in the center of the room. This construction method, with the center surrounded by the surrounding area, can effectively reduce the number of antennas and feeders, while maintaining the same coverage level as traditional construction methods.

[0101] According to the principle of antenna, when alternating current flows on the wire, electromagnetic wave radiation can be generated; the radiation capacity is related to the length and shape of the wire: when the two wires are very close, the radiation is very weak; when the two wires are separated, the radiation will be enhanced; when the length of the wire is increased to 1 / 4 of the wavelength, a better radiation effect can be formed, such as Figure 8 and Figure 9 shown.

[0102] The average height of an underground garage is about 3 meters, with a low vertical plane and a wide horizontal plane. In view of this specific environment, the antenna in the embodiment of the present application adopts a horizontal beam with a large opening angle of 90 degrees. Its characteristic is that it covers a larger area and can effectively improve the coverage range. In the edge of the weak coverage area, a combination of traditional indoor antennas, log-periodic antennas or narrow beam angle antennas is used. The schematic diagram of the horizontal beam with a large opening angle of 65 degrees and 90 degrees is shown in the figure. Figure 10 shown.

[0103] The antenna used in the embodiments of this application reduces its overall size by adjusting the horizontal beam width, and can be suspended from tendons or beams, making installation more flexible and convenient. The antenna parameters are shown in the following table:

[0104] Electrical parameters Innovative antennas Dimensions (mm) 550*190*160 Weight (kg) 5 Gain (dBi) 15 Horizontal beamwidth (°) 90 Vertical beamwidth (°) 13 Front-to-back ratio (dB) ≥25

[0105] The traditional indoor distributed system is a ceiling-mounted antenna for both transmission and reception (1T1R). The antenna in this application adopts a 2T2R dual-antenna mode and uses multi-antenna coverage enhancement technology to improve uplink coverage. The base station can more easily demodulate the signal reported by the terminal, the peak rate is doubled, and the coverage and rate perception are improved. The improved antenna transmission method is as follows Figure 11 As shown, the antenna has small specifications and wide coverage, and adopts 2T2R dual-antenna mode with strong uplink transmission capability.

[0106] Schematic diagram of directional antenna coverage direction Figure 12 As shown in Figure 2, when the target angle α≤90 degrees, the installation direction of the antenna is parallel to the channel, that is, Figure 12 When the target angle α is greater than 90 degrees, the antenna is installed perpendicular to the channel. Figure 12 Directions shown below.

[0107] Repeat the above steps to determine the optimal number and installation location of directional antennas in the closed scene. If the edge locations do not meet the coverage conditions, use logarithmic periodic or traditional indoor antennas to supplement them, such as Figure 13 shown.

[0108] Determine the number of signal sources to use based on the site area and antenna layout. To ensure stable and efficient signal transmission, install the signal sources near the antenna locations and as close to the power supply as possible. During installation, ensure that the feeder cable lengths from the signal source to the antenna locations at both ends remain roughly consistent to ensure balanced and reliable signal transmission.

[0109] Based on the 5*5 meter grid, the basement is divided into grids. According to the selected antenna specifications and antenna positions, the signal strength from the antenna to the center of each grid is calculated by the dynamic point coverage calculation method, and filled in according to the color interval to simulate the signal coverage strength and output the signal coverage rendering. The rendering effect is as follows Figure 14 shown.

[0110] In addition, the traditional antenna installation method is to install it under the roof truss or on the load-bearing wall. Through the study of the basement scene, the double L-shaped baffle is used in the embodiment of the present application to form a new method to fix it on the suspension rod of the bridge frame. The double screws on both sides and the contact surface of the suspension rod are added with rubber pads to increase the friction of the contact surface, further improve the stability and safety of the overall structure, reduce the difficulty of antenna installation construction, and effectively solve the problem of the middle position of the installation channel and the signal blocking problem. The schematic diagram of the double L-shaped baffle is as follows Figure 15 shown.

[0111] Take a closed scene as an example, with an area of 22,000 square meters. There are 3 channels (occupying 80% of the area) + 2 independent areas (occupying 20% of the area), and each channel is separated by a wall. The "signal source + new antenna" method is used for coverage. 1) Antenna selection: 2 spotlight antennas are used for 3 channels, and 2 logarithmic periodic antennas are used for 2 independent areas; 2) The signal source is selected in the middle area between the spotlight and the logarithmic period and close to the existing power supply location; 3) The optical cable is laid according to the RRU position; 4) 7 / 8 feeders are used to extend the distance from the signal source to the antenna, with a total design of 120 meters, and 1 / 2 feeders are designed for 25 meters. After the implementation of the solution, the terminal receiving level value is -87dBm, the good point receiving level value is -50dBm, the poor point receiving level value is -109dBm, and the statistical sampling point coverage rate is 100% (RSRP>=-115dBm&SINR>-3dB), which meets user needs. The corresponding RSRP and SINR level value signals are as follows: Figure 16 and Figure 17 shown.

[0112] Figure 18 is a structural diagram of a device for determining an antenna installation position according to an embodiment of the present application, such as Figure 18 As shown, the device includes:

[0113] An acquisition module 40 is configured to acquire an indoor plan structure diagram of the underground garage, wherein the indoor plan structure diagram is used to determine structural data;

[0114] A first determining module 42 is configured to determine, based on the structure data, a maximum coverage distance at which a power value received by the terminal is greater than a preset minimum received power;

[0115] The second determining module 44 is configured to determine an antenna installation location in the underground garage based on the longest coverage distance.

[0116] Through the acquisition module, the first determination module, and the second determination module in the above-mentioned antenna installation position determination device, the purpose of optimizing network coverage and improving communication quality is achieved, thereby achieving the technical effect of reducing construction costs and reducing the number of antennas, and further solving the technical problems of high construction costs and excessive number of signal sources and antennas in traditional indoor distributed antenna systems in underground garage scenarios.

[0117] In the first determination module in the above-mentioned antenna installation position determination device, the first determination module is also used to determine signal quality data based on structural data; determine signal end power based on the signal quality data; and determine the farthest coverage distance based on the signal end power and the preset minimum receiving power.

[0118] In the first determination module in the above-mentioned device for determining the antenna installation position, the first determination module is further configured to determine the path loss in the signal quality data. Specifically, the path loss in the signal quality data is determined by: determining any wall perpendicular to the channel in the indoor plan structure diagram as the first wall, determining one of the vertices of the first wall as the first initial point, and determining another vertex of the first wall as the second initial point, wherein the channel is located in the middle of the indoor plan structure diagram; determining the direction of a line connecting the first initial point and the second initial point as the first initial direction, and determining the angle between a line connecting a position point on the center line of the channel and the first initial point and a line corresponding to the first initial direction as a first intersection angle; determining the path loss based on the length of the first wall, the transmission frequency of the signal source device, and the first intersection angle; or determining the direction of a line connecting the second initial point and the first initial point as the second initial direction, and determining the angle between a line connecting the position point on the center line of the channel and the second initial point and a line corresponding to the second initial direction as the second intersection angle; and determining the path loss based on the length of the first wall, the transmission frequency of the signal source device, and the second intersection angle.

[0119] In the first determination module in the above-mentioned antenna installation position determination device, the first determination module is also used to determine the corresponding position point and cross angle each time the preset angle is increased when the first cross angle increases according to the preset step size, to obtain the first position point and the third cross angle; determine the first signal end power corresponding to the first position point based on the third cross angle, and when the first signal end power is less than the preset minimum receiving power, increase the third cross angle by the preset angle to obtain the fourth cross angle and the second position point; determine the second signal end power corresponding to the second position point based on the fourth cross angle, and when the second signal end power is less than the preset minimum receiving power, subtract the preset angle from the third cross angle to obtain the first target cross angle; determine the first farthest coverage distance based on the first target cross angle, wherein the farthest coverage distance includes the first farthest coverage distance.

[0120] In the first determination module in the above-mentioned antenna installation position determination device, the first determination module is also used to, when the second cross angle increases according to a preset step size, determine the corresponding position point and cross angle each time the preset angle is increased, to obtain a third position point and a fifth cross angle; based on the fifth cross angle, determine the third signal end power corresponding to the third position point, and when the third signal end power is less than the preset minimum receiving power, increase the fifth cross angle by the preset angle to obtain a sixth cross angle and a fourth position point; based on the sixth cross angle, determine the fourth signal end power corresponding to the fourth position point, and when the fourth signal end power is less than the preset minimum receiving power, subtract the preset angle from the fifth cross angle to obtain a second target cross angle; determine the second farthest coverage distance based on the second target cross angle, wherein the farthest coverage distance includes the second farthest coverage distance.

[0121] In the second determination module in the above-mentioned antenna installation position determination device, the second determination module is also used to determine the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determine the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; determine the intersection of the center line of the channel and the first connecting line as the first intersection point, wherein the first connecting line is the line connecting the first initial point and the second initial point; determine the first distance from the first target position point to the first intersection point, and determine the second distance from the second target position point to the first intersection point; determine the position point corresponding to the minimum value of the first distance and the second distance as the first antenna installation position.

[0122] In the second determination module in the above-mentioned antenna installation position determination device, the second determination module is also used to determine the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determine the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; determine the intersection of the center line of the channel and the first connecting line as the first intersection point, wherein the first connecting line is the line connecting the first initial point and the second initial point; determine the first distance from the first target position point to the first intersection point, and determine the second distance from the second target position point to the first intersection point; move along the center line of the channel toward the inside of the wall with the first intersection point as the starting point, and determine the position point set of the first intersection point that meets the first condition during the movement, wherein the position point set is determined as follows: determine the first intersection point at the first position The terminal power of the first position signal corresponding to the point, when the terminal power of the first position signal is less than the preset minimum receiving power, determine the terminal power of the second position signal corresponding to the first intersection point at the second position point, the second position point is the position point corresponding to the intersection angle corresponding to the first position point plus the preset angle; when the terminal power of the second position signal is less than the preset minimum receiving power, the position point corresponding to the intersection angle corresponding to the first position point minus the preset angle is determined as the target position point, wherein the target position point is the position point that meets the first condition; determine a position point set based on the target position point; determine the third distance of each position point in the position point set from the first target position point and the fourth distance from the second target position point, and determine the position point corresponding to the maximum value of the third distance and the fourth distance as the antenna installation position.

[0123] In the second determination module in the above-mentioned antenna installation position determination device, the second determination module is also used to determine the seventh cross angle corresponding to the antenna installation position, wherein the seventh cross angle is the angle between the line connecting the point on the second wall and the antenna installation position and the second line, the second line is a parallel line connecting the first initial point and the second initial point, and passes through the antenna installation position, and the second wall is any wall parallel to the channel; when the seventh cross angle is increased according to the preset step size, the signal end power of the antenna installation position to the left and right edges is determined, and the left signal end power and the right signal end power are obtained; when the left signal end power and the right signal end power are both less than the preset minimum receiving power twice in a row, the coverage range of the installed antenna is determined.

[0124] In the second determination module in the above-mentioned antenna installation position determination device, the second determination module is also used to obtain the spatial distribution of the underground garage and the coverage range of the antenna; based on the spatial distribution and the coverage range of the antenna, determine the number of antennas required for the underground garage and the installation position of each antenna.

[0125] In the second determination module in the above-mentioned antenna installation position determination device, the second determination module is further used to determine a target angle formed by the first initial point, the antenna installation position and the second initial point; and determine the installation direction of the antenna based on the target angle.

[0126] In the second determination module in the above-mentioned antenna installation position determination device, the second determination module is also used to determine that the installation direction of the antenna is parallel to the channel when the target angle is less than or equal to 90 degrees; when the target angle is greater than 90 degrees, determine that the installation direction of the antenna is perpendicular to the channel.

[0127] It should be noted that Figure 18 The antenna installation position determination device shown is used to perform Figure 2 The method for determining the antenna installation position is shown in the figure, so the relevant explanations in the above-mentioned method for determining the antenna installation position are also applicable to the device for determining the antenna installation position, and will not be repeated here.

[0128] An embodiment of the present application also provides an electronic device, which includes a memory and a processor, wherein the memory is used to store program instructions; the processor is connected to the memory and is used to execute program instructions to implement the following functions: obtaining an indoor plan structure diagram of an underground garage, wherein the indoor plan structure diagram is used to determine structural data; based on the structural data, determining the farthest coverage distance at which the power value received by the terminal is greater than a preset minimum receiving power; based on the farthest coverage distance, determining the antenna installation position in the underground garage.

[0129] It should be noted that the above electronic equipment is used to perform Figure 2 The method for determining the antenna installation position is shown in the figure, so the relevant explanations in the above method for determining the antenna installation position are also applicable to the electronic device and will not be repeated here.

[0130] An embodiment of the present application further provides a non-volatile storage medium, which includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the above-mentioned method for determining the antenna installation position by running the computer program.

[0131] An embodiment of the present application further provides a computer program product, comprising computer instructions, which, when executed by a processor, implement the steps of the method for determining the antenna installation position in each embodiment of the present application.

[0132] An embodiment of the present application further provides a computer program, which, when executed by a processor, implements the steps of the method for determining the antenna installation position in each embodiment of the present application.

[0133] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0134] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0135] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0136] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0137] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0138] If the integrated unit 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 the part that contributes 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, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0139] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for determining an antenna installation position, characterized in that: include: Obtaining an indoor plan structure diagram of the underground garage, wherein the indoor plan structure diagram is used to determine structural data; Determining, based on the structural data, a maximum coverage distance at which a power value received by the terminal is greater than a preset minimum received power; The antenna installation position in the underground garage is determined based on the farthest coverage distance.

2. The method according to claim 1, characterized in that Determining, based on the structure data, a maximum coverage distance at which a power value received by the terminal is greater than a preset minimum received power, comprising: determining signal quality data based on the structural data; determining a signal end power based on the signal quality data; The farthest coverage distance is determined according to the signal end power and the preset minimum receiving power.

3. The method according to claim 2, characterized in that The path loss in the signal quality data is determined by: Determine any wall perpendicular to the passage in the indoor plan structure diagram as a first wall, determine one vertex of the first wall as a first initial point, and determine another vertex of the first wall as a second initial point, wherein the passage is located in the middle of the indoor plan structure diagram; Determine the direction of the line connecting the first initial point and the second initial point as a first initial direction, and determine the angle between the line connecting the position point on the center line of the channel and the first initial point and the line corresponding to the first initial direction as a first intersection angle; determining the path loss based on the length of the first wall, the transmission frequency of the source device, and the first intersection angle; or, Determine the direction of the line connecting the second initial point and the first initial point as the second initial direction, and determine the angle between the line connecting the position point on the center line of the channel and the second initial point and the line corresponding to the second initial direction as the second intersection angle; The path loss is determined according to the length of the first wall, the transmission frequency of the source device, and the second crossing angle.

4. The method according to claim 3, characterized in that Determining the maximum coverage distance according to the signal end power and the preset minimum received power includes: When the first intersection angle increases according to a preset step length, each time the preset angle is increased, the corresponding position point and intersection angle are determined to obtain a first position point and a third intersection angle; Determining, based on the third intersection angle, a first signal end power corresponding to the first position point, and, if the first signal end power is less than the preset minimum received power, increasing the third intersection angle by the preset angle to obtain a fourth intersection angle and a second position point; Determining a second signal end power corresponding to the second position point based on the fourth intersection angle, and when the second signal end power is less than the preset minimum received power, subtracting the preset angle from the third intersection angle to obtain a first target intersection angle; A first farthest coverage distance is determined according to the first target intersection angle, wherein the farthest coverage distance includes the first farthest coverage distance.

5. The method according to claim 4, characterized in that Determining the maximum coverage distance according to the signal end power and the preset minimum received power includes: When the second intersection angle increases according to the preset step size, each time the preset angle is increased, the corresponding position point and intersection angle are determined to obtain a third position point and a fifth intersection angle; Determining, based on the fifth intersection angle, a third signal end power corresponding to the third position point, and, if the third signal end power is less than the preset minimum received power, increasing the fifth intersection angle by the preset angle to obtain a sixth intersection angle and a fourth position point; Determining a fourth signal end power corresponding to the fourth position point based on the sixth intersection angle, and when the fourth signal end power is less than the preset minimum received power, subtracting the preset angle from the fifth intersection angle to obtain a second target intersection angle; A second farthest coverage distance is determined according to the second target intersection angle, wherein the farthest coverage distance includes the second farthest coverage distance.

6. The method according to claim 5, characterized in that Determining an antenna installation location in the underground garage based on the maximum coverage distance includes: Determine the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determine the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; Determine an intersection point between a center line of the channel and a first connecting line as a first intersection point, wherein the first connecting line is a line connecting the first initial point and the second initial point; Determining a first distance from the first target location point to the first intersection point, and determining a second distance from the second target location point to the first intersection point; A location point corresponding to a minimum value between the first distance and the second distance is determined as the antenna installation location.

7. The method according to claim 5, characterized in that Determining an antenna installation location in the underground garage based on the maximum coverage distance includes: Determine the position point on the center line of the channel corresponding to the first target intersection angle as the first target position point, and determine the position point on the center line of the channel corresponding to the second target intersection angle as the second target position point; Determine an intersection point between a center line of the channel and a first connecting line as a first intersection point, wherein the first connecting line is a line connecting the first initial point and the second initial point; Determining a first distance from the first target location point to the first intersection point, and determining a second distance from the second target location point to the first intersection point; Taking the first intersection as the starting point, move along the center line of the passage toward the inner side of the wall, and determine a set of position points of the first intersection that meet the first condition during the movement, wherein the set of position points is determined in the following manner: determining the terminal power of the first position signal corresponding to the first intersection at the first position point, and when the terminal power of the first position signal is less than the preset minimum receiving power, determining the terminal power of the second position signal corresponding to the first intersection at the second position point, the second position point being the position point corresponding to the intersection angle corresponding to the first position point plus the preset angle; when the terminal power of the second position signal is less than the preset minimum receiving power, determining the position point corresponding to the intersection angle corresponding to the first position point minus the preset angle as the target position point, wherein the target position point is the position point that meets the first condition; determining the set of position points based on the target position point; Determine a third distance between each location point in the location point set and the first target location point, and a fourth distance between each location point and the second target location point, and determine the location point corresponding to the maximum value of the third distance and the fourth distance as the antenna installation location.

8. The method according to claim 3, characterized in that The method further comprises: Determine a seventh intersection angle corresponding to the antenna installation location, where the seventh intersection angle is the angle between a line connecting a point on the second wall and the antenna installation location and a second line, where the second line is a line parallel to a line connecting the first initial point and the second initial point and passes through the antenna installation location, and the second wall is any wall parallel to the passage. When the seventh intersection angle is increased according to a preset step length, the signal end powers of the left and right edges of the antenna installation position are determined to obtain the left signal end power and the right signal end power; When both the left signal end power and the right signal end power are less than the preset minimum receiving power for two consecutive times, the coverage range of the installed antenna is determined.

9. The method according to claim 8, characterized in that After determining the coverage range of the installed antenna, the method further includes: Obtain the spatial distribution of underground garages and antenna coverage; The number of antennas required for the underground garage and the installation position of each antenna are determined based on the spatial distribution and the coverage of the antennas.

10. The method according to claim 3, characterized in that The method further comprises: Determining a target angle formed by the first initial point, the antenna installation position, and the second initial point; The installation direction of the antenna is determined according to the target angle.

11. The method according to claim 10, characterized in that Determining the installation direction of the antenna according to the target angle includes: When the target angle is less than or equal to 90 degrees, determining that the installation direction of the antenna is parallel to the channel; When the target angle is greater than 90 degrees, it is determined that the installation direction of the antenna is perpendicular to the channel.

12. A device for determining an antenna installation position, characterized in that: include: An acquisition module is used to acquire an indoor plan structure diagram of the underground garage, wherein the indoor plan structure diagram is used to determine the structural data; A first determining module is configured to determine, based on the structure data, a maximum coverage distance at which a power value received by the terminal is greater than a preset minimum receiving power; The second determining module is used to determine the antenna installation position in the underground garage according to the farthest coverage distance.

13. An electronic device, characterized in that: include: a memory for storing program instructions; A processor, connected to the memory, is used to execute program instructions to implement the following functions: obtaining an indoor plan structure diagram of the underground garage, wherein the indoor plan structure diagram is used to determine structural data; based on the structural data, determining the farthest coverage distance at which the power value received by the terminal is greater than a preset minimum receiving power; based on the farthest coverage distance, determining the antenna installation position in the underground garage.

14. A non-volatile storage medium, characterized in that: The non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the method for determining the antenna installation position according to any one of claims 1 to 11 by running the computer program.

15. A computer program product comprising computer instructions, characterized in that When the computer instructions are executed by a processor, the method for determining the antenna installation position according to any one of claims 1 to 11 is implemented.

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