CN112437445B - Power wireless private network networking method and system based on low-altitude platform - Google Patents
Power wireless private network networking method and system based on low-altitude platform Download PDFInfo
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Abstract
The invention provides a power wireless private network networking method and system based on a low-altitude platform, and belongs to the field of wireless communication. The method comprises the following steps: acquiring deployment conditions of ground access base stations, wherein the ground access base stations are communicated with terminals and are used for collecting information from the terminals; generating a low-altitude platform coverage model according to the deployment condition of the ground access base station and selecting a corresponding low-altitude platform coverage scheme; generating a corresponding low-altitude platform convergence base station deployment scheme according to the low-altitude platform coverage model and the low-altitude platform coverage scheme; and deploying the low-altitude platform convergence base station according to the deployment scheme of the low-altitude platform convergence base station, wherein the low-altitude platform convergence base station is used for collecting the information transmitted by the ground access base station and uploading the information to a core network. And the targeted deployment of the low-altitude platform convergence base stations is carried out according to the deployment condition of the ground access base stations, so that the utilization efficiency of the low-altitude platform convergence base stations is improved, and the construction cost of the base stations is effectively reduced.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to a power wireless private network networking method based on a low-altitude platform and a power wireless private network networking system based on the low-altitude platform.
Background
With the construction and development of smart power grids, particularly energy Internet, the requirements on real-time performance, stability, reliability and safety of power business communication are continuously improved, traditional optical fiber communication has the problems of high construction difficulty, high deployment cost, incapability of meeting the full coverage of mass business terminals with large quantity and wide scope, and the like, and meanwhile, the wireless broadband communication technology is continuously broken through, so that the construction of power wireless private networks is more and more concerned.
The novel network architecture of the power wireless private network is of a three-layer structure and comprises a bottom layer equipment terminal, a middle layer ground access base station and an upper layer LAP ((Low Altitude Platform, low-altitude platform) convergence base station, when the low-altitude platform convergence base station is built, the low-altitude platform convergence base station is faced with different coverage environments, if the position of the low-altitude platform base station is determined according to a unified standard, the preset coverage model is easily biased due to the arrangement density of ground obstacles, terrains and the ground access base station, so that the problems of low connection success rate, low communication efficiency, low base station utilization efficiency and the like between the low-altitude platform convergence base station and the ground access base station are caused.
Disclosure of Invention
The embodiment of the invention aims to provide a power wireless private network networking method based on a low-altitude platform, which at least solves the problems of reduced connection success rate, low communication efficiency and low base station utilization efficiency of a low-altitude platform convergence base station and a ground access base station.
In order to achieve the above object, a first aspect of the present invention provides a power wireless private network networking method based on a low-altitude platform, the method comprising: acquiring deployment conditions of ground access base stations, wherein the ground access base stations are communicated with terminals and are used for collecting information from the terminals; generating a low-altitude platform coverage model according to the deployment condition of the ground access base station and selecting a corresponding low-altitude platform coverage scheme; generating a corresponding low-altitude platform convergence base station deployment scheme according to the low-altitude platform coverage model and the low-altitude platform coverage scheme; and deploying the low-altitude platform convergence base station according to the deployment scheme of the low-altitude platform convergence base station, wherein the low-altitude platform convergence base station is used for collecting the information transmitted by the ground access base station and uploading the information to a core network.
Optionally, the deployment situation of the ground access base station includes: the ground access base station distributes the topography condition of the area and the distribution condition of the ground access base station in the area.
Optionally, the topography condition of the ground access base station distribution area includes a ground obstacle condition of the ground access base station distribution area, and the distribution condition of the ground access base station in the ground access base station distribution area includes: the ground access base station is distributed in the distribution position, the distribution shape and the distribution density of the distribution area.
Optionally, the low-altitude platform coverage model includes a line-of-sight probability model p L (r) between an antenna of the low-altitude platform convergence base station and an antenna of the ground access base station, and the line-of-sight probability model p L (r) is generated according to the following preset formula:
Wherein h c represents the antenna height of the low-altitude platform convergence base station, and h a represents the antenna height of the ground access base station; r represents the distance between the ground access base station and the ground projection point of the low-altitude platform convergence base station; c is a scale parameter of a ground barrier in the ground access base station distribution area, wherein a relation between c and the height H of the ground barrier is as follows:
f(H)＝(H/c2)exp(-H2/2c2)；
optionally, the low-altitude platform coverage model further includes a Friis electric wave propagation model, and the formula of the Friis electric wave propagation model is:
L(dB)＝A×pL(r)+10×log(r2+Δh2)+B
Wherein Δh=h c-ha; a and B represent additional path loss factors for radio wave propagation environments and line-of-sight and non-line-of-sight conditions, respectively; and obtaining the relation between the coverage radius of the low-altitude platform convergence base station and the ground height of the low-altitude platform convergence base station according to the Friis electric wave propagation model.
Optionally, the generating a low-altitude platform coverage model according to the deployment situation of the ground access base station and selecting a corresponding low-altitude platform coverage scheme include: according to the distribution shape and distribution density of the ground access base station in the distribution area, selecting an adaptive coverage scheme of the low-altitude platform convergence base station, wherein the coverage scheme of the low-altitude platform convergence base station at least comprises: regular hexagonal full coverage, efficient full coverage, linear full coverage, mixed area coverage, and targeted area coverage.
The communication between the low-altitude platform convergence base station and the ground access base station adopts WiFi based on IEEE802.11b standard; wherein: a low-altitude platform convergence base station communicates with all ground access base stations within its coverage area multiplexing channels 1,6 and 11 of the IEEE802.11b standard.
The second aspect of the present invention provides a power wireless private network networking system based on a low-altitude platform, the system comprising: the system comprises an acquisition unit, a terminal and a control unit, wherein the acquisition unit is used for acquiring the deployment condition of a ground access base station, and the ground access base station is communicated with the terminal and is used for collecting information from the terminal; the processing unit is used for generating a low-altitude platform coverage model according to the deployment condition of the ground access base station and selecting a corresponding low-altitude platform coverage scheme; generating a corresponding low-altitude platform convergence base station deployment scheme according to the low-altitude platform coverage model and the low-altitude platform coverage scheme; the low-altitude platform convergence base station is deployed according to the deployment scheme of the low-altitude platform convergence base station, and the low-altitude platform convergence base station is used for collecting information transmitted by the ground access base station and uploading the information to a core network; and the execution unit is used for deploying the low-altitude platform convergence base station according to the deployment scheme of the low-altitude platform convergence base station.
Optionally, the deployment situation of the ground access base station includes: the ground access base station distributes the topography of the area and the distribution of the ground access base station in the area; the acquisition unit comprises: the extraction unit is used for extracting the distribution position, the distribution shape and the distribution density of the ground access base station in the distribution area from the ground access base station deployment database; and the sensor unit is used for acquiring the ground obstacle condition of the ground access base station distribution area.
In another aspect, the present invention provides a computer readable storage medium having instructions stored thereon, which when executed on a computer, cause the computer to perform the above-described low-altitude platform-based power wireless private network networking method.
Through the technical scheme, the system automatically acquires the deployment condition of the ground access base station, generates the low-altitude platform coverage model according to the deployment condition of the ground access base station and selects the corresponding low-altitude platform coverage scheme, so that the low-altitude platform convergence base station can be erected in a targeted manner according to the arrangement working conditions of the unused ground access base station, the problems of low connection success rate, low communication efficiency, low base station utilization efficiency and the like caused when the low-altitude platform convergence base station is erected due to the fact that the different arrangement areas in actual conditions adopt unified standards are different are avoided, and the utilization efficiency of the low-altitude platform convergence base station is effectively improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain, without limitation, the embodiments of the invention. In the drawings:
fig. 1 is a flowchart of a method for networking a power wireless private network based on a low-altitude platform according to an embodiment of the present invention;
Fig. 2 is a system configuration diagram of a power wireless private network networking system based on a low-altitude platform according to an embodiment of the present invention;
fig. 3 is a block diagram of an acquisition unit of the power wireless private network networking system according to an embodiment of the present invention.
Description of the reference numerals
10-An acquisition unit; a 20-processing unit; 30-an execution unit;
101-an extraction unit; 102-sensor unit.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Fig. 2 is a system structure diagram of a power wireless private network networking system based on a low-altitude platform according to an embodiment of the present invention, and as shown in fig. 2, the present invention provides a power wireless private network networking system based on a low-altitude platform, where the system includes: the acquisition unit 10 is configured to acquire a deployment situation of a ground access base station, where the ground access base station is in communication with a terminal, and is configured to collect information from the terminal; the processing unit 20 is configured to generate a low-altitude platform coverage model according to the deployment situation of the ground access base station and select a corresponding low-altitude platform coverage scheme; generating a corresponding low-altitude platform convergence base station deployment scheme according to the low-altitude platform coverage model and the low-altitude platform coverage scheme; the low-altitude platform convergence base station is deployed according to the deployment scheme of the low-altitude platform convergence base station, and the low-altitude platform convergence base station is used for collecting information transmitted by the ground access base station and uploading the information to a core network. And the execution unit is used for deploying the low-altitude platform convergence base station according to the deployment scheme of the low-altitude platform convergence base station.
Preferably, as shown in fig. 3, the collecting unit includes: an extracting unit 101, configured to extract a distribution position, a distribution shape, and a distribution density of the ground access base station in a distribution area thereof from a ground access base station deployment database; and the sensor unit 102 is used for acquiring the ground obstacle condition of the ground access base station distribution area.
Fig. 1 is a flowchart of a method for networking a wireless private network of electric power based on a low-altitude platform according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a power wireless private network networking method based on a low-altitude platform, where the method includes:
step S10: acquiring deployment conditions of a terminal and a ground base station;
Specifically, the network architecture of the traditional power grid wireless private network is a two-layer architecture, and comprises a terminal layer at the lowest end and an access base station layer at the upper end, the construction cost of access construction is higher, a large number of access base stations are required to be constructed for wireless communication resource transmission of user terminals along with the rapid increase of terminal equipment, in order to reduce the construction cost of the base stations and improve the management efficiency of the base stations, a layer of LAP convergence base station is preferably added on an upper low-altitude platform of the original two-layer wireless private network architecture for collecting information transmitted from a ground access base station layer and uploading the information to a core network, so that the collection and management capability of the power wireless private network to mass terminal equipment information is enhanced, the backhaul link optical fiber laying required by the dense deployment of the base stations is reduced, and the range of supporting power service of the power wireless private network is expanded.
The LAP convergent base station is in communication connection with the ground access base station, so that in the deployment process of the LAP convergent base station, reference must be made to the deployment condition of the ground access base station. The coverage model of the LAP convergence base station adopts an air-ground transmission path loss model, so that reference needs to be made to the detailed deployment situation of the ground access base station, including the distribution position of the ground base station, the obstacle situation of the distribution area, the distribution shape of the ground base station and the distribution density of the ground base station. The situation of the obstacle in the area where the ground access base stations are distributed and the distribution shape of the ground access base stations are collected by the sensor unit 102, the sensor unit 102 is a video sensor, preferably, the video collector is arranged in the unmanned aerial vehicle, the surrounding obstacle of the ground access base stations is photographed through an overhead angle, if the ground access base stations are arranged in a city building group, the situation of the obstacle in the area where the ground access base stations are built is recorded and stored even when the ground base stations are built because the city building is faster than the terrain obstacle outside the urban area, the situation of the obstacle in the area where the ground access base stations are built may be greatly changed in the subsequent city transition process, and the obstacle situation of the attachment of the ground access base stations is reconfirmed before the LAP convergent base station deployment is carried out. Preferably, the video sensor is provided with an optical measuring sensor for measuring the external dimensions of the obstacle after the video sensor recognizes the obstacle and transmitting the measured external dimensions of the obstacle to the processing unit 20. When the ground base station is built, the building position record of the ground base station is stored, and preferably, the extracting unit 101 is constructed on the original resource library for storing the building data of the ground base station, and is used for extracting the distribution position and the distribution density condition of the ground base station from the preset ground base station deployment database. When the LAP convergence base station is built, the processing unit 20 extracts the building data of all the ground base stations in the area according to the positions of the LAP convergence base stations to be built, and draws a ground access base station distribution map on a map according to the extracted ground base station building data, so that a distribution density map and a distribution shape map of the ground access base stations in the area are obtained.
In the embodiment of the invention, when the LAP convergent base station is built, firstly, the deployment condition of the ground access base station is acquired, and the LAP convergent base station is built pertinently according to the deployment condition of the ground access base station, so that the LAP convergent base station is prevented from being redundantly arranged, the communication resource waste is caused, and the resource management efficiency of the LAP convergent base station is improved.
Step S20: and generating a corresponding LAP convergence base station coverage model according to the deployment condition of the ground base station.
Specifically, the coverage model of the LAP convergence base station adopts an A2G (Air to Ground) transmission path loss model, and is composed of a LoS (Line of Sight) probability model and a Friis wave propagation model provided by the international telecommunications union. The LoS probability model provided by the International telecommunication Union models a propagation environment as a group of obstructions in a square grid, wherein three-dimensional obstructions in suburban areas, urban areas, dense urban areas of buildings or urban areas of high buildings are characterized by three characteristic parameters (a, b and c), and a represents the percentage of the obstructions in the total occupied area; b represents the average number of obstructions per square kilometer of land area; c represents a scale parameter of the obstacle. Wherein the obstacle height H is a random variable of Rayleigh distribution compliant with the scale parameter c, satisfying the following relation:
f(H)＝(H/c2)exp(-H2/2c2)
When the LAP convergent base station is erected, the LAP convergent base station and the ground access base station in the coverage area must be guaranteed to have enough connection success rate, namely, the LoS probability between the LAP convergent base station antenna and the ground access base station antenna is guaranteed to reach a preset value, and the LoS probability p L (r) between the LAP convergent base station antenna and the ground access base station antenna is calculated according to a line-of-sight probability model provided by the International telecommunication Union:
Wherein h c,ha represents the heights of the LAP convergent base station and the ground access base station antenna, r represents the distance between the ground access base station and the ground projection point of the LAP convergent base station,
In the communication connection process of the ground access base station and the LAP convergence base station, the electric wave propagation path loss also needs to be considered when the theoretical coverage range is considered, and the apparent distance and non-apparent distance average path loss is rewritten according to the Friis electric wave propagation model:
L(dB)＝A×pL(r)+10×log(r2+Δh2)+B
Wherein Δh=h c-ha,A＝ηLoS-ηNLoS,B＝20log(4πf/c)+ηNLoS,ηLoS,ηNLoS represents the propagation environment and the additional path loss factors of the line-of-sight and non-line-of-sight propagation conditions, respectively, f represents the carrier frequency, c represents the speed of light, the average path loss of the predetermined requirement, and η LoS,ηNLoS is estimated according to the communication environment, after the additional path loss factors of the propagation environment and the line-of-sight and non-line-of-sight propagation conditions are obtained, the relationship between the coverage radius R of the LAP and the ground height h of the LAP convergence base station can be determined according to the path loss and the LoS probability, thereby generating the coverage model of the LAP convergence base station, and c is required
The radius of the coverage range is used for determining the erection height of the LAP convergence base station.
In another possible implementation manner, the conventional coverage topography is distinguished, for example, four types of conventional ground base station erection areas including suburban areas, urban areas, dense building urban areas and high building urban areas are listed, in order to reduce steps, when the LAP deployment is performed, three-dimensional characteristic parameters of corresponding obstacles need to be calculated each time, preferably, rule statistics of four coverage area types are performed, the obstacle information of the same coverage area type has great similarity, even if slight deviation exists, the coverage area of the LAP convergence base station is not greatly affected, so that a plurality of positions with characterization significance are selected for each coverage area type to perform the three-dimensional characteristic parameter statistics of the obstacles in the area. And after integrating a plurality of data, obtaining the standard three-dimensional characteristic parameters of the corresponding coverage area types by obtaining an average value. For example, after the adaptive rule statistics, three-dimensional characteristic parameters (a, b, c) of suburban areas, urban areas, dense building urban areas and high-rise urban areas are set as (0.1,750,8), (0.3,500,15), (0.5,300,20), (0.5,300,50), respectively. In order to ensure the stability of communication connection and the high efficiency of data transmission between the ground access base station and the LAP convergence base station, preferably, the ground access base station and the LAP convergence base station adopt WiFi based on IEEE 802.11b standard, after adaptive training, the path loss experience value between the ground access base station and the LAP convergence base station is positioned between-70 dBm and-75 dBm, the carrier frequency f=2.4 GHz, and the maximum bandwidth is 11Mbps. When the LAP convergence base station deployment scheme is generated, constructors only need to manually select the type of the coverage area according to the requirement, and select the proper coverage area type, the processing unit 20 directly extracts the preset parameters of the corresponding coverage area type, and the acquisition and calculation of the re-related parameters are not performed, so that the use efficiency of the system is improved, and the generation time of the LAP convergence base station deployment scheme is shortened.
Step S30: and generating a corresponding LAP convergence base station coverage scheme according to the deployment condition of the ground base station.
Specifically, the distribution shape and density of the ground access base stations can affect deployment of the LAP convergence base stations, because the coverage area of the LAP convergence base stations is a standard circular area, and the distribution shape and density of the ground access base stations are irregularly distributed, in order to ensure that the coverage area of the LAP convergence base stations is efficiently utilized, a detailed deployment scheme of the ground access base stations needs to be acquired. The extraction unit 101 extracts the construction positions of the ground access base stations of the selected area in the ground access base station construction information base, and simulates the deployment shape of the ground access base stations in the area on a map along the outermost periphery of the area, for example, a rectangular shape and a divergent shape along the periphery of the center. And then marking the positions of all the ground access base stations in the area, counting the total number of the ground access base stations in the area, and then calculating the distribution density of the ground access base stations in the area according to the area of the selected area. For example, the area where the LAP convergence base station is prepared to be deployed is a city or a dense factory, the area is densely deployed by ground access base stations in a large area, and the amount of terminals and the ground access base stations in the area is very large, so that the amount of service resources required to be processed is also very large. The ground access base station in the overlapping area of the plurality of LAP convergent base stations can be selectively in communication connection with the plurality of LAP convergent base stations covering the area, and the ground access base station is selected according to the load degree of the LAP convergent base stations, so that the ground access base station can be cooperatively and efficiently processed by the plurality of LAP convergent base stations in the peak stage of service resource request. The LAP convergent base stations are erected above the area, each LAP convergent base station and the adjacent 6 LAP convergent base stations form 6 equilateral triangles, the side length of the equilateral triangles is determined by the coverage radius of the erected LAP convergent base stations, and the LAP convergent base stations are preferably arranged as followsThe processing unit 20 draws the complete area outline of the area to be covered, then completely covers the whole selected area according to the regular hexagon complete coverage principle containing the overlapped area, presents a honeycomb arrangement, ensures that the whole area is completely covered by the LAP convergent base stations, and improves the base station management efficiency in the area.
In another possible implementation manner, the LAP convergence base station is ready to be deployed in suburban areas, and the suburban ground access base station distribution manner is often sparse deployment of the ground access base stations in a large area, in which the area of the ground base station distribution area is large, but because of fewer terminals, the usage efficiency of a single ground access base station is not high, the coverage area of a single ground access base station is large, and the service requests to be processed are fewer. Therefore, in order to adapt to such a ground base station deployment manner, preferably, the LAP convergence base station coverage scheme selects a full coverage scheme of a non-overlapping area, first, the extraction unit 101 obtains construction positions of all the ground access base stations in the area, the processing unit 20 marks the construction positions on a simulation map, and performs adaptive LAP convergence base station arrangement, for example, firstly, relatively dense areas of the ground access base stations are distributed, the LAP convergence base stations and the coverage area are simulated into a circle, one LAP convergence base station is preferentially set in the relatively dense areas of the ground access base stations as a reference base station, then, the convergence base stations are continuously set along edges of the LAP convergence base stations, so that all the ground access base stations are guaranteed to have the LAP convergence base station coverage, and because the service request amount of the area is not large, one LAP convergence base station can completely process the service request of the convergence base station in the corresponding coverage area, therefore, when the LAP convergence base stations are arranged, one ground access base station is guaranteed to only correspond to one LAP convergence base station, on the premise that the LAP convergence base station is guaranteed to be covered by the LAP convergence base station in the area, the construction cost of each LAP convergence base station is reduced, and each LAP convergence base station is managed.
In another possible implementation manner, the LAP convergence base stations are to be deployed in a single factory, the deployment manner of the ground access base stations in the single factory is often that the ground access base stations in a strip-shaped area are more densely deployed, and the ground access base stations in the area are often in linear distribution, because the coverage area of the LAP convergence base stations is a circle, in order to adapt to the distribution shape of the ground base stations, the coverage scheme of the LAP convergence base stations preferably selects a linear LAP convergence base station deployment scheme, and each 3 LAP convergence base stations use channels 1,6 and 11, that is, the channels used in the coverage area of one LAP convergence base station are different from the coverage areas of two adjacent LAP convergence base stations, so that co-channel interference is reduced. The processing unit 20 obtains the construction positions of the ground access base stations in the selected area, the processing unit 20 draws the distribution shape of the ground access base stations distributed in long strips according to the construction positions, then the length a of the short side of the shape is identified through a map, and preferably, the coverage radius of the LAO convergence base stations is determined according to the length a of the short side to beThe distance between two base stations is a.
In another possible implementation manner, the LAP-pooling base stations are to be deployed in areas where the access base station arrangement density is severely uneven, such as rural areas where there are aggregation areas and wilderness areas, where there may be more dense ground access base station distribution in populated aggregation areas, and where there are more closely spaced farmland areas and mountainous areas where there are particularly sparse ground access base stations, and according to the basic principle that all ground access base stations need to be covered by the LAP-pooling base stations, preferably, the coverage scheme of the LAP-pooling base stations selects a mixed area coverage scheme, and different LAP-pooling base station deployment schemes are implemented for different ground base station distribution small areas. For example, the processing unit 20 obtains that the high-density area and the low-density area of the ground access base station exist in the selected area, and the processing unit 20 divides the areas into the high-density areas, such as a rural residential aggregation point according to splitting the areas; medium density areas, such as scattered rural residence points; low density areas such as farmland areas and mountainous areas. And selecting a corresponding LAP convergence base station coverage scheme according to the different differentiated ground access base station density regions, for example, selecting a regular hexagon full coverage scheme containing an overlapping region by a high-density region, selecting a full coverage scheme without overlapping region by a medium-density region, and selecting a linear LAP convergence base station deployment scheme by a low-density region. Different LAP convergence base station coverage schemes are selected aiming at unused ground access base stations, so that the high efficiency of the schemes is ensured, and the base station management efficiency is improved.
Step S40: and generating a LAP convergent base station deployment scheme according to the generated LAP convergent base station coverage scheme and the coverage model.
Specifically, in generating the coverage scheme and the coverage model of the LAP-base station, the deployment scheme of the LAP-base station is basically determined, but the deployment scheme is only used as the preliminary deployment scheme of the LAP-base station, and because the LAP-base station can also need to finely adjust the position of the LAP-base station because of more prominent obstacle interference and overlarge service request amount required to be processed in a processing area. In order to ensure the stability and the high efficiency of the communication connection between the ground access base station and the LAP convergence base station, preferably, the ground access base station and the LAP convergence base station adopt WiFi based on IEEE 802.11b standard, the two channels share 4 channels, the effective width of each channel is 20MHz, and the forced isolation bandwidth of 2MHz is additionally provided, as shown in figure 3, orthogonal channels 1, 6 and 11 in 14 channels are selected, and the maximum ground access base station number of each LAP convergence base station = the actual throughput rate of the LAP convergence base station/the average bandwidth of each ground access base station. The deployment density of the LAP convergence base stations is estimated according to the maximum ground access base station number supported by each LAP convergence base station and the concurrent ground access base station number M AP in busy hours:
DAP＝Mb/MAP
Wherein D AP represents the number of deployed LAP convergence base stations, and the calculation formula of M b is:
Mb＝Mh×SOP×P
Wherein M h represents the number of concurrent ground access base stations in busy hours, S OP represents the network permeability, and P represents the concurrency rate in busy hours.
After determining the coverage model of the LAP convergence base station, if the number of the ground access base stations in a certain LAP convergence base station is calculated and identified to be far more than the maximum number of the ground access base stations of the LAP convergence base station or the maximum concurrent service throughput in busy hours, in order to ensure effective management of the ground access base stations, preferably, the deployment density scheme optimization of the LAP convergence base stations is performed according to the actual density of the current ground access base stations, and the optimal erection number of the LAP convergence base stations is determined. In order to accurately adapt to the situation of the obstacles in different areas, preferably, the optimization for avoiding the obstacle area is performed on the basis of the generated preliminary deployment scheme of the LAP convergence base station, the sensor unit 102 extracts the appearance information of the protruding obstacle and the newly generated obstacle, performs targeted three-dimensional parameter optimization according to the characteristic three-dimensional parameters of the current area, brings the protruding obstacle and the newly generated obstacle into a reference range, optimizes the LAP convergence base station coverage model according to the new three-dimensional parameters, recalculates the coverage radius, the erection height and the erection position of the LAP, and takes the updated deployment scheme of the LAP convergence base station as the final erection scheme of the LAP convergence base station.
In the embodiment of the invention, the position of the LAP convergence base station is finely adjusted according to factors such as specific environment, topography, shielding objects and the like aiming at a coverage blind spot or a blind area. The ground base stations can be ensured to accurately establish stable communication connection with the LAP convergence base stations, and the problems that the connection strength of the ground base stations and the LAP convergence base stations is reduced due to specific environmental influence, the access probability is reduced, management failure is caused during later-stage base station management and the like are avoided. And the scheme optimization is carried out on the generated preliminary deployment scheme according to actual matters, so that the problem of lengthening the scheme generation time caused by the targeted optimization from the first step is avoided.
Step S50: and outputting the LAP convergence base station deployment scheme.
Specifically, after the processing unit 20 completes the optimization of the preliminary deployment scheme of the LAP convergence base stations, a scheme report of the deployment number, the erection position and the erection height of the LAP convergence base stations in the area is generated, and then the scheme report is displayed through the display unit for relevant personnel to review. Preferably, a constructor can perform construction simulation of the LAP convergence base station through the display unit, wherein the construction simulation comprises an image simulation coverage area and a communication transmission load scheme, and an effective and image deployment scheme of the LAP convergence base station is provided for the constructor. The processing unit 20 sorts the generated deployment scheme of the LAP convergent base station into a conventional document format, and related personnel can directly export the document containing the detailed deployment scheme of the LAP convergent base station, so that the use convenience of the system is improved.
The alternative embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the embodiments of the present invention within the scope of the technical concept of the embodiments of the present invention, and all the simple modifications belong to the protection scope of the embodiments of the present invention. In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of embodiments of the invention are not described in detail.
In addition, any combination of the various embodiments of the present invention may be made, so long as it does not deviate from the idea of the embodiments of the present invention, and it should also be regarded as what is disclosed in the embodiments of the present invention.
Claims (6)
1. A power wireless private network networking method based on a low-altitude platform, the method comprising:
Acquiring deployment conditions of ground access base stations, wherein the ground access base stations are communicated with terminals and are used for collecting information from the terminals; wherein,
The deployment situation of the ground access base station comprises the following steps:
the ground access base station distributes the topography of the area and the distribution of the ground access base station in the area;
The terrain conditions of the ground access base station distribution area comprise ground obstacle conditions of the ground access base station distribution area, and the distribution conditions of the ground access base station in the ground access base station distribution area comprise: the distribution position, the distribution shape and the distribution density of the ground access base stations in the distribution area of the ground access base stations;
Generating a low-altitude platform coverage model according to the deployment condition of the ground access base station and selecting a corresponding low-altitude platform coverage scheme; wherein,
The low-altitude platform coverage model comprises a line-of-sight probability model p L (r) for calculating the relation between the antennas of the low-altitude platform convergence base station and the ground access base station, and the line-of-sight probability model p L (r) is generated according to the following preset formula:
Wherein h c represents the antenna height of the low-altitude platform convergence base station, and h a represents the antenna height of the ground access base station;
a represents the percentage of the total usable floor area of the obstacle; b represents the average number of obstructions per square kilometer of land area; r represents the distance between the ground access base station and the ground projection point of the low-altitude platform convergence base station;
c is a scale parameter of a ground barrier in the ground access base station distribution area, wherein a relation between c and the height H of the ground barrier is as follows:
f(H)＝(H/c2)exp(-H2/2c2)；
Where f (H) represents that the obstacle height H is a random variable of the Rayleigh distribution subject to the scale parameter c;
The low-altitude platform coverage model further comprises a Friis electric wave propagation model for calculating the relation between the coverage radius of the low-altitude platform convergence base station and the ground height of the low-altitude platform convergence base station, and the Friis electric wave propagation model formula is as follows:
L(dB)＝A×pL(r)+10×log(r2+Δh2)+B
Wherein Δh=h c-ha;A＝ηLoS-ηNLoS,B＝20log(4πf/c)+ηNLoS;
η LoS,ηNLoS represents the additional path loss factors for propagation environment and line-of-sight and non-line-of-sight propagation conditions, respectively; f represents a carrier frequency; c represents the speed of light;
Generating a corresponding low-altitude platform convergence base station deployment scheme according to the low-altitude platform coverage model and the low-altitude platform coverage scheme;
And deploying the low-altitude platform convergence base station according to the deployment scheme of the low-altitude platform convergence base station, wherein the low-altitude platform convergence base station is used for collecting the information transmitted by the ground access base station and uploading the information to a core network.
2. The method for power wireless private network networking based on a low-altitude platform according to claim 1, wherein the generating a low-altitude platform coverage model and selecting a corresponding low-altitude platform coverage scheme according to the deployment situation of the ground access base station comprises:
according to the distribution shape and distribution density of the ground access base station in the distribution area, selecting an adaptive coverage scheme of the low-altitude platform convergence base station, wherein the coverage scheme of the low-altitude platform convergence base station at least comprises:
Regular hexagonal full coverage, efficient full coverage, linear full coverage, mixed area coverage, and targeted area coverage.
3. The low-altitude platform-based power wireless private network networking method according to claim 1, wherein communication between the low-altitude platform convergence base station and the ground access base station adopts WiFi based on IEEE 802.11b standard; wherein:
A low-altitude platform convergence base station communicates with all ground access base stations within its coverage area multiplexing channels 1, 6 and 11 of the IEEE 802.11b standard.
4. A low-altitude platform-based power wireless private network networking system, the system configured to perform the low-altitude platform-based power wireless private network networking method of any one of claims 1-3, the system comprising:
The system comprises an acquisition unit, a terminal and a control unit, wherein the acquisition unit is used for acquiring the deployment condition of a ground access base station, and the ground access base station is communicated with the terminal and is used for collecting information from the terminal;
The processing unit is used for generating a low-altitude platform coverage model according to the deployment condition of the ground access base station and selecting a corresponding low-altitude platform coverage scheme; generating a corresponding low-altitude platform convergence base station deployment scheme according to the low-altitude platform coverage model and the low-altitude platform coverage scheme;
And the execution unit is used for deploying the low-altitude platform convergence base station according to the deployment scheme of the low-altitude platform convergence base station.
5. The low-altitude platform-based power wireless private network networking system of claim 4, wherein the deployment scenario of the ground access base station comprises: the ground access base station distributes the topography of the area and the distribution of the ground access base station in the area;
The acquisition unit comprises:
The extraction unit is used for extracting the distribution position, the distribution shape and the distribution density of the ground access base station in the distribution area from the ground access base station deployment database;
and the sensor unit is used for acquiring the ground obstacle condition of the ground access base station distribution area.
6. A computer readable storage medium having instructions stored thereon, which when run on a computer causes the computer to perform the low-altitude platform-based power wireless private network networking method of any one of claims 1 to 3.
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