WO2023275928A1 - エリア設計補助方法、エリア設計補助装置及びプログラム - Google Patents
エリア設計補助方法、エリア設計補助装置及びプログラム Download PDFInfo
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- WO2023275928A1 WO2023275928A1 PCT/JP2021/024334 JP2021024334W WO2023275928A1 WO 2023275928 A1 WO2023275928 A1 WO 2023275928A1 JP 2021024334 W JP2021024334 W JP 2021024334W WO 2023275928 A1 WO2023275928 A1 WO 2023275928A1
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- base station
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 42
- 238000011156 evaluation Methods 0.000 claims description 30
- 238000013461 design Methods 0.000 claims description 27
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/04—Architectural design, interior design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/56—Particle system, point based geometry or rendering
Definitions
- the present invention relates to an area design assistance method, an area design assistance device, and a program.
- Patent Document 1 In the technology for designing base stations, it is generally determined whether or not communication is possible depending on whether or not there is an obstacle between the base station and the point to be evaluated (for example, Patent Document 1). There is also a technique for monitoring the state of infrastructure equipment by utilizing point cloud data (for example, Non-Patent Document 1).
- the present invention provides an area design assistance method, an area design assistance device, and a program that realize area design by utilizing point cloud data.
- an evaluation range determination step of determining an evaluation range on a map generated from map information, a mesh creation step of creating a mesh group dividing the evaluation range, and a representative point of the mesh are determined.
- One aspect of the present invention is an evaluation range determination unit that determines an evaluation range on a map generated from map information, a mesh creation unit that creates a mesh group that divides the evaluation range, and a representative point of the mesh.
- a representative point determining unit a line of sight determining unit that determines the line of sight between the base station and the representative point based on the contours of buildings included in the evaluation range;
- an area design assisting device comprising: a communication propriety determining unit that determines propriety of communication between the base station and the representative point using point cloud data in the area corresponding to the map information for the point be.
- One aspect of the present invention is a program for causing a computer to function the above area design assistance method.
- area design can be realized using point cloud data.
- FIG. 11 is a schematic diagram of a mesh determination method by a communication availability determination unit 28 according to the second embodiment
- 11 is a schematic diagram of a mesh determination method by a communication availability determination unit 28 according to the second embodiment; It is an example of a triangle formed by a base station, a building outline, two line segments connecting the base station and both ends of the building outline, and the building outline.
- FIG. 1 is a diagram showing the configuration of an area design assisting device 1 according to the first embodiment.
- the area design assisting device 1 provides information for assisting in designing a communication area based on input map information and the like.
- the area design assistance device 1 includes a map information acquisition unit 10, an outdoor facility information acquisition unit 12, an evaluation range determination unit 14, a mesh creation unit 16, a representative point determination unit 18, a number assignment unit 20, a base station candidate position generation unit 22, A line-of-sight determination unit 24 , a point cloud data acquisition unit 26 , and a communication availability determination unit 28 are provided.
- the map information acquisition unit 10 acquires map information.
- the map information includes, for example, information on outlines of buildings on the map.
- the outline of a building on the map is, for example, the shape of the walls of an office, factory, residence, or the like on the map.
- the map information may be information about a two-dimensional map or information about a three-dimensional map. If the map information is information about a three-dimensional map, it may also include information about the height of buildings on the map.
- the map information acquisition unit 10 acquires map information input by a user, for example.
- the outdoor equipment information acquisition unit 12 acquires outdoor equipment information.
- the outdoor equipment information may include information about the location of outdoor communication equipment such as utility poles and communication cables, information about the location of existing wireless base stations, or other structures on which wireless base stations can be installed.
- the outdoor facility information acquisition unit 12 acquires outdoor facility information such as a candidate structure on which a wireless base station can be installed, which is input by a user.
- the evaluation range determination unit 14 determines the evaluation range on the map generated from the map information.
- the evaluation range is the range for area design.
- the evaluation range is designated, for example, by enclosing a place to be evaluated by the user on the screen displaying the map acquired by the map information acquisition unit 10, and is determined by the evaluation range determination unit 14 based on the specified range. .
- the mesh creation unit 16 creates a mesh that divides the evaluation range determined by the evaluation range determination unit 14.
- the mesh creation unit 16 creates a mesh group that partitions the evaluation range by, for example, using meshes of a predetermined size to cover the evaluation range.
- the mesh creation unit 16 may adjust the size of a predetermined number of meshes, for example, and create a mesh group that divides the evaluation range.
- FIG. 2 is an example of a map divided by meshes.
- the representative point determination unit 18 determines a representative point for each mesh. For example, when the mesh is a square, the representative point determination unit 18 determines the center of the mesh as the representative point. Also, for example, when a map is represented by two-dimensional XY coordinates, the representative point determining unit 18 may determine the smallest X coordinate and Y coordinate included in the mesh as the representative point.
- FIG. 3 is an example of a mesh with representative points determined.
- the number assigning unit 20 assigns numbers to meshes. Since the number of the mesh is for distinguishing it from other meshes, for example, a symbol or a representative point of the mesh may be used instead of the number.
- the base station candidate position generator 22 generates base station candidate positions.
- the candidate positions of the base station are, for example, the positions of utility poles based on the outdoor facility information. Further, the candidate position of the base station may be, for example, the position of a building having a height equal to or higher than a certain value among the heights of buildings based on map information.
- FIG. 4 is an example of base station candidate positions generated on a map.
- the line-of-sight determination unit 24 determines the line-of-sight to the mesh from the candidate positions of the base stations.
- the line-of-sight determining unit 24 connects, for example, a candidate position of the base station and a representative point of the mesh with a line segment, and determines that there is no line-of-sight when the line segment intersects the outline of the building. If they do not intersect, it is determined that there is a line of sight.
- the outlook determination unit 24 considers the candidate positions of the base stations and the height of the representative point of the mesh to determine the candidate positions of the base stations. may determine the line-of-sight to the mesh.
- FIG. 5 is an example of a mesh determined to have line of sight or no line of sight.
- the point cloud data acquisition unit 26 acquires the point cloud data collected in the area corresponding to the map information acquired by the map information acquisition unit 10 from the MMS travel trajectory and MMS.
- the area corresponding to the map information is the actual area indicated by the map created from the map information.
- the communication feasibility determination unit 28 uses the point cloud data to determine the feasibility of communication for the base station candidate positions and the corresponding line-of-sight meshes.
- a method for determining whether communication is possible is the method described in Patent Document 2, for example.
- FIG. 6 is a flow chart showing the operation of the area design assisting device 1.
- the map information acquisition unit 10 acquires map information (step S101).
- the outdoor equipment information acquisition unit 12 acquires outdoor equipment information (step S102).
- the evaluation range determination unit 14 determines the evaluation range (step S103).
- the mesh creation unit 16 creates a mesh (step S104).
- the representative point determination unit 18 determines a representative point for each mesh (step S105).
- the number assigning unit 20 assigns numbers to the meshes (step S106).
- the base station candidate position generator 22 generates base station candidate positions (step S107).
- the line-of-sight determination unit 24 repeats steps S109 to S113 for the candidate positions of each base station (step S108).
- the line-of-sight determination unit 24 repeats steps S110 to S113 for each mesh (step S109).
- the line-of-sight determination unit 24 determines the line-of-sight to all meshes from the candidate positions of all base stations in steps S108 and S109.
- the line-of-sight determination unit 24 draws a line segment between the candidate position of the base station and the mesh (step S110).
- the line of sight determination unit 24 determines whether or not the line segment intersects with the outline of the building (step S111). If the line segment intersects with the outline of the building (step S111: YES), the line-of-sight determining unit 24 determines that there is "no line-of-sight" between the candidate position of the base station and the mesh (step S112). If the line segment does not intersect with the outline of the building (step S111: NO), the line-of-sight determination unit 24 determines that there is "line-of-sight" between the candidate position of the base station and the mesh (step S113).
- the point cloud data acquisition unit 26 acquires point cloud data (step S114).
- the communication propriety determination unit 28 uses the point cloud data to evaluate shielding (step S115).
- the area design assisting device 1 can realize area design by utilizing the point cloud data by providing the above-described configuration.
- the communication feasibility determination unit 28 according to the second embodiment performs the operation of the communication feasibility determination unit 28 according to the first embodiment. If there is a mesh that is not connected to the base station, it is determined that communication between the base station and the representative point is not possible.
- the communication feasibility determination unit 28 uses the point cloud data to determine communication feasibility in order from the meshes with corresponding representative points closest to the base station, among the base station candidate positions and the corresponding line-of-sight meshes.
- 7A and 7B show schematic diagrams of a mesh determination method by the communication availability determination unit 28 according to the second embodiment.
- "YES” indicates meshes determined to be communicable based on the point cloud data
- "NO" indicates meshes determined to be non-communicable based on the point cloud data.
- the base station when there is a mesh for which communication is determined to be impossible between the candidate position of the base station and the representative point of the mesh by the communication availability determination unit 28, the base station and By determining that communication between the representative points is impossible, it is possible to reduce the number of meshes for determining whether communication is possible using point cloud data.
- a line-of-sight determination unit 24 according to the third embodiment determines the line-of-sight between the base station and the representative point in consideration of the reflection on the outer shell of the building.
- the line-of-sight determination unit 24 determines the shell as the transmission source of the reflected wave when it is determined that all meshes between the base station and the shell of the building have line-of-sight.
- the fact that there is line-of-sight between the base station and the building outline means that, for example, two line segments connecting the base station and both ends of the building outline and the triangle formed by the building outline overlap each other. It is determined that all the meshes that FIG. 8 shows an example of a triangle formed by a base station, a building outline, two line segments connecting the base station and both ends of the building outline, and the building outline.
- the line-of-sight determination unit 24 installs mirror base stations on the map.
- the mirror base station is installed at a line-symmetrical position with respect to the base station, with the outline determined as the transmission source of the reflected wave being the axis of symmetry.
- FIG. 8 shows an example of a mirror image base station.
- the line-of-sight determination unit 24 determines the line-of-sight from the mirror base station to the mesh by the same method as for the base station.
- the line of sight determination unit 24 installs a mirror base station on the map and determines the line of sight from the mirror base station to the mesh. It is possible to determine that communication is possible only in areas where communication with the base station is possible.
- a part or all of the area design assistance device 1 in the above-described embodiment may be realized by a computer.
- a program for realizing this function may be recorded in a computer-readable recording medium, and the program recorded in this recording medium may be read into a computer system and executed.
- the "computer system” referred to here includes hardware such as an OS and peripheral devices.
- the term "computer-readable recording medium” refers to portable media such as flexible discs, magneto-optical discs, ROMs and CD-ROMs, and storage devices such as hard discs incorporated in computer systems.
- “computer-readable recording medium” means a medium that dynamically retains a program for a short period of time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It may also include something that holds the program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client in that case. Further, the program may be for realizing a part of the functions described above, or may be capable of realizing the functions described above in combination with a program already recorded in the computer system. It may be implemented using a programmable logic device such as an FPGA (Field Programmable Gate Array).
- FPGA Field Programmable Gate Array
- 1 Area design assistance device 10 Map information acquisition unit, 12 Outdoor facility information acquisition unit, 14 Evaluation range determination unit, 16 Mesh creation unit, 18 Representative point determination unit, 20 Number assignment unit, 22 Base station candidate position generation unit, 24 Line of sight determination unit, 26 point cloud data acquisition unit, 28 communication availability determination unit
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Abstract
Description
本発明は点群データを活用してエリア設計を実現するエリア設計補助方法、エリア設計補助装置及びプログラムを提供する。
図1は第1の実施形態に係るエリア設計補助装置1の構成を示す図である。エリア設計補助装置1は、入力される地図情報などに基づいて通信エリアを設計することを補助する情報を提供する。
エリア設計補助装置1は、地図情報取得部10、屋外設備情報取得部12、評価範囲決定部14、メッシュ作成部16、代表点決定部18、番号付与部20、基地局候補位置生成部22、見通し判定部24、点群データ取得部26、通信可否判定部28を備える。
地図情報取得部10は、地図情報を取得する(ステップS101)。屋外設備情報取得部12は、屋外設備情報を取得する(ステップS102)。評価範囲決定部14は評価範囲を決定する(ステップS103)。メッシュ作成部16は、メッシュを作成する(ステップS104)。代表点決定部18は、メッシュごとに代表点を決定する(ステップS105)。番号付与部20は、メッシュに番号を付与する(ステップS106)。基地局候補位置生成部22は、基地局の候補位置を生成する(ステップS107)。
第2の実施形態に係る通信可否判定部28は、第1の実施形態に係る通信可否判定部28の動作に加え、基地局の候補位置とメッシュの代表点との間に通信不可と判定されたメッシュがある場合に、当該基地局と当該代表点間の通信を不可と判定する。
第3の実施形態に係る見通し判定部24は、建物の外郭における反射を考慮して基地局と前記代表点との間の見通しを判定する。
Claims (5)
- 地図情報から生成される地図上の評価範囲を決定する評価範囲決定ステップと、
前記評価範囲を区切るメッシュ群を作成するメッシュ作成ステップと、
前記メッシュの代表点を決定する代表点決定ステップと、
基地局と前記代表点との間の見通しを、前記評価範囲に含まれる建物の外郭に基づいて判定する見通し判定ステップと、
前記見通し判定ステップにより見通しありと判定された代表点に対して、前記地図情報に対応する地域における点群データを使用して、前記基地局と前記代表点との間の通信可否を判定する通信可否判定ステップと、
を有するエリア設計補助方法。 - 前記通信可否判定ステップは、
前記基地局と前記代表点との間に通信不可と判定されたメッシュがある場合に、前記基地局と前記代表点間の通信を不可と判定する、
請求項1に記載のエリア設計補助方法。 - 前記見通し判定ステップは、
前記建物の外郭における反射を考慮して基地局と前記代表点との間の見通しを判定する、
請求項1又は2に記載のエリア設計補助方法。 - 地図情報から生成される地図上の評価範囲を決定する評価範囲決定部と、
前記評価範囲を区切るメッシュ群を作成するメッシュ作成部と、
前記メッシュの代表点を決定する代表点決定部と、
基地局と前記代表点との間の見通しを、前記評価範囲に含まれる建物の外郭に基づいて判定する見通し判定部と、
前記見通し判定部により見通しありと判定された代表点に対して、前記地図情報に対応する地域における点群データを使用して、前記基地局と前記代表点との間の通信可否を判定する通信可否判定部と、
を備えるエリア設計補助装置。 - コンピュータに、
請求項1から3のいずれか一項に記載のエリア設計補助方法を機能させるためのプログラム。
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US18/570,197 US20240276235A1 (en) | 2021-06-28 | 2021-06-28 | Area design auxiliary method, area design auxiliary device and program |
PCT/JP2021/024334 WO2023275928A1 (ja) | 2021-06-28 | 2021-06-28 | エリア設計補助方法、エリア設計補助装置及びプログラム |
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Citations (5)
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JP2006352551A (ja) | 2005-06-16 | 2006-12-28 | Nippon Telegr & Teleph Corp <Ntt> | 無線局間の見通し判定方法及び装置、見通し判定プログラム及びそのプログラムを記録した記録媒体 |
JP2011234091A (ja) * | 2010-04-27 | 2011-11-17 | Nippon Telegr & Teleph Corp <Ntt> | 置局設計方法、置局設計装置、及び置局設計プログラム |
JP2019198051A (ja) * | 2018-05-13 | 2019-11-14 | Necネッツエスアイ株式会社 | 置局場所候補選定システム |
JP2020107955A (ja) | 2018-12-26 | 2020-07-09 | 日本電信電話株式会社 | 置局設計方法、置局設計装置、及び置局設計プログラム |
JP2020113826A (ja) * | 2019-01-08 | 2020-07-27 | 日本電信電話株式会社 | 設置候補提示方法、設置候補提示装置及びプログラム |
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- 2021-06-28 WO PCT/JP2021/024334 patent/WO2023275928A1/ja active Application Filing
- 2021-06-28 US US18/570,197 patent/US20240276235A1/en active Pending
- 2021-06-28 EP EP21948242.9A patent/EP4366356A1/en active Pending
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JP2006352551A (ja) | 2005-06-16 | 2006-12-28 | Nippon Telegr & Teleph Corp <Ntt> | 無線局間の見通し判定方法及び装置、見通し判定プログラム及びそのプログラムを記録した記録媒体 |
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