WO2023026339A1 - Antenna direction determination device, antenna direction determination method, and antenna direction determination program - Google Patents

Antenna direction determination device, antenna direction determination method, and antenna direction determination program Download PDF

Info

Publication number
WO2023026339A1
WO2023026339A1 PCT/JP2021/030863 JP2021030863W WO2023026339A1 WO 2023026339 A1 WO2023026339 A1 WO 2023026339A1 JP 2021030863 W JP2021030863 W JP 2021030863W WO 2023026339 A1 WO2023026339 A1 WO 2023026339A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
angle
range
error rate
unit
Prior art date
Application number
PCT/JP2021/030863
Other languages
French (fr)
Japanese (ja)
Inventor
正文 吉岡
文昭 永瀬
圭太 栗山
利文 宮城
Original Assignee
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to PCT/JP2021/030863 priority Critical patent/WO2023026339A1/en
Priority to JP2023543503A priority patent/JPWO2023026339A1/ja
Publication of WO2023026339A1 publication Critical patent/WO2023026339A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Definitions

  • the present invention relates to an antenna direction determination device, an antenna direction determination method, and an antenna direction determination program.
  • the antenna As a method of determining the direction in which to install the antenna, there is a method of installing the antenna in the direction that maximizes the power of the received radio waves. For example, based on the amount of deviation between the calculated time when a noise radio wave is received and the noise level peak is observed and the time when the received noise radio wave is actually measured and the noise level peak is measured, the antenna A known technique is to calculate the pointing errors of the azimuth and elevation angles and correct the antenna's azimuth and elevation angles using the calculated pointing errors when adjusting the pointing direction of the antenna with respect to a target. (See Patent Document 1, for example).
  • the antenna installation direction may change due to weather such as wind, rain, or snow on the transmitting and receiving sides, the influence of animals and plants, or physical reasons such as vibration. I can put it away.
  • the received power of the antenna fluctuates due to external or internal factors such as temperature changes and chemical denaturation (rust).
  • the degree of variation may increase even if the angle of the antenna oriented in the direction in which the signal can be received with the maximum received power is slightly deviated.
  • the present invention provides an antenna direction determination apparatus and an antenna direction that can determine the installation direction of an antenna so as to suppress deterioration in wireless communication quality even if the installation direction of an antenna having directivity changes after installation.
  • An object is to provide a determination method and an antenna direction determination program.
  • An antenna direction determination device contributes to the error rate of a signal received by the antenna for each antenna angle indicating the installation direction when the installation direction of the antenna having directivity is changed sequentially.
  • an extraction unit for extracting one or more continuous angle ranges including only antenna angles at which the error rate of the signal received by the antenna is equal to or less than a threshold based on each of the signal data; and the angle range extracted by the extraction unit.
  • a determination unit that selects the widest range from each of them and determines the antenna angle at which the antenna should be installed within the selected range of angles.
  • the error rate of the signal received by the antenna for each antenna angle indicating the installation direction is an extraction unit for extracting, based on each of the contributing signal data, a continuous angle range including only the antenna angle at which the probability that the error rate of the signal received by the antenna is equal to or lower than each of a plurality of thresholds is highest; and a determination unit that determines an antenna angle at which the antenna should be installed within the range of angles extracted by the unit.
  • the antenna direction determination method when the installation direction of a directional antenna is sequentially changed, the error rate of the signal received by the antenna is changed for each antenna angle indicating the installation direction.
  • the error rate of the signal received by the antenna for each antenna angle indicating the installation direction is extracting, based on each of the contributing signal data, a contiguous range of angles that includes only those antenna angles for which the error rate of the signal received by the antenna has the highest probability of being below each of a plurality of thresholds; and determining an antenna angle at which the antenna should be installed within a range of angles.
  • the present invention even if the installation direction of a directional antenna changes after installation, it is possible to determine the installation direction of the antenna so as to suppress deterioration in wireless communication quality.
  • FIG. 3 is a functional block diagram illustrating functions of an antenna direction determination device according to one embodiment
  • FIG. FIG. 10 is a graph schematically showing a process in which an extraction unit extracts a continuous range of antenna angles in which the error rate of a signal received by the antenna is equal to or lower than a predetermined threshold
  • FIG. 4 is a flow chart showing a first operation example of the antenna direction determination device
  • FIG. 10 is a diagram illustrating features of a second operation example of the antenna direction determination device; It is a figure which shows the hardware structural example of a process part.
  • (a) is a graph illustrating the result of determining the direction of the antenna with respect to the receiving device of the comparative example.
  • (b) is a graph exemplifying a range in which the direction of the antenna of the receiving device of the comparative example is deviated due to external influences and the like.
  • FIG. 6 is a graph illustrating a relationship between an angle indicating an adjustable antenna direction of a receiving apparatus having a directional antenna and received power at that angle.
  • FIG. 6A is a graph illustrating the result of determining the direction (angle) of the antenna for the receiver of the comparative example.
  • FIG. 6B is a graph exemplifying the range in which the direction (angle) of the antenna of the receiving device of the comparative example deviates due to external influences and the like.
  • the receiving apparatus of the comparative example can obtain received power equal to or higher than the threshold A indicating the required communication quality, and the angle B at which the received power is the largest is set as the installation direction of the antenna. It is determined.
  • the threshold A is a reference value indicating the minimum required communication quality. For example, if the received power is equal to or higher than the threshold A, it indicates that the error rate of the signal received by the antenna is equal to or lower than the reference value indicating the minimum required communication quality.
  • the direction (angle) of the antenna may fluctuate, for example, within the range of C due to external influences and the like.
  • the received power may be less than the threshold A within the range of C when the angle B is determined as the direction of the antenna.
  • the error rate may become larger than the reference value indicating the minimum required communication quality due to the change in the direction of the antenna.
  • an antenna direction determination apparatus is configured to determine the installation direction of an antenna so as to suppress deterioration in wireless communication quality even if the installation direction of the antenna changes after installation. .
  • FIG. 1 is a functional block diagram illustrating functions of an antenna direction determination device 1 according to one embodiment.
  • the antenna direction determination device 1 has an antenna 2 and a processing unit 3, for example.
  • the antenna 2 is, for example, an antenna with directivity in a low frequency band such as the VHF band, and is provided so that the installation direction can be manually changed by the operator. Further, the antenna 2 may be provided with a mechanism for changing the direction by an operation input, or may be configured to dynamically change the direction.
  • the antenna 2 may be configured to change its direction within a range of 360 degrees, or may be configured to change its direction within a predetermined range. Also, the antenna 2 may be provided so as to be oriented in any three-dimensional direction.
  • the processing unit 3 has a receiving unit 30 , an obtaining unit 31 , a first storage unit 32 , an extraction unit 33 , a second storage unit 34 , a determination unit 35 , an output unit 36 and a third storage unit 37 .
  • the reception unit 30 receives a signal transmitted by a transmission device (not shown) via the antenna 2 and outputs the received signal to the acquisition unit 31 .
  • the acquisition unit 31 acquires signal data contributing to the error rate of the signal received by the antenna 2 for each antenna angle indicating the installation direction of the antenna 2 when the installation direction of the antenna 2 is sequentially changed. 1 storage unit 32.
  • the signal data acquired by the acquisition unit 31 is the reception strength of the signal received by the reception unit 30 via the antenna 2, and the like.
  • the signal data that contributes to the error rate of the signal received by the antenna 2 may be the difference (C/N) between a state in which a transmission device (not shown) transmits a signal and a state in which the transmission is stopped, or other indicators. good too.
  • the first storage unit 32 stores the signal data acquired by the acquisition unit 31 for each antenna angle, and outputs it in response to access from the extraction unit 33 .
  • the extracting unit 33 Based on the signal data and the antenna angles read from the first storage unit 32, the extracting unit 33 selects a range of continuous angles including only the antenna angles at which the error rate of the signal received by the antenna 2 is equal to or lower than a predetermined threshold. At least one angle is extracted, and data (data series) indicating the extracted range of angles is output to the second storage unit 34 .
  • FIG. 2 is a graph schematically showing the process by which the extraction unit 33 extracts a continuous angle range including only the antenna angles at which the error rate of the signal received by the antenna 2 is equal to or less than a predetermined threshold.
  • the extraction unit 33 extracts ranges D and F in which the received power is equal to or greater than the threshold A, for example.
  • the threshold A is a reference value indicating the minimum required communication quality, as described above. That is, when the received power is equal to or higher than the threshold A, the error rate of the signal received by the antenna 2 is equal to or lower than the reference value indicating the minimum required communication quality.
  • the extraction unit 33 determines the probability that the error rate of the signal received by the antenna 2 is equal to or lower than a plurality of threshold values (described later using FIG. 5). may be configured to extract a continuous angle range including only the antenna angle with the highest , and output data indicating the extracted angle range to the second storage unit 34 .
  • the extracting unit 33 determines that the time or data amount that allows compliance with the minimum quality of wireless communication is maximized when the antenna 2 changes according to the feature.
  • the range may be extracted so that
  • the extraction unit 33 does not read out the signal data and the antenna angle from the first storage unit 32, but based on the signal data and the antenna angle previously stored in the third storage unit 37, which will be described later. Each range of angles may be extracted.
  • the antenna angle data is, for example, discrete values. Also, the correspondence between the signal data and the antenna angle may be represented by a mathematical formula.
  • the second storage unit 34 (FIG. 1) stores data indicating the range of angles extracted by the extraction unit 33, and outputs the data in response to access from the determination unit 35.
  • the determination unit 35 selects the widest angle range from each of the angle ranges read from the second storage unit 34, and determines and determines the antenna angle at which the antenna 2 should be installed within the selected angle range. The result is output to the output unit 36 .
  • the determination unit 35 selects range F, which is the widest range, from ranges D and F shown in FIG. For example, when the determination unit 35 determines the angle E as the antenna angle, even if the direction (angle) of the antenna 2 fluctuates, for example, within the range C due to external influences, the antenna direction determination device 1 always sets the threshold A signal can be received with a reception power of A or higher. In other words, the antenna direction determination device 1 can make the signal error rate equal to or lower than the reference value indicating the minimum necessary communication quality.
  • the determination unit 35 may determine the center of the widest angle range extracted by the extraction unit 33 as the antenna angle at which the antenna 2 should be installed.
  • the extracting unit 33 extracts a continuous angle range including only the antenna angle at which the probability that the error rate of the signal received by the antenna 2 is equal to or lower than each of the plurality of thresholds is highest.
  • the deciding unit 35 An antenna angle at which the antenna 2 should be installed is determined within the range of angles extracted by the extraction unit 33 (described later with reference to FIG. 5). At this time, the determination unit 35 determines, for example, the center of the angle range extracted by the extraction unit 33 as the antenna angle at which the antenna 2 should be installed.
  • the output unit 36 outputs the result determined by the determination unit 35 by, for example, displaying it, and presents the antenna angle at which the antenna 2 should be installed to the worker.
  • the third storage unit 37 stores in advance data corresponding to the signal data for each antenna angle stored in the first storage unit 32, and outputs data in response to access from the extraction unit 33.
  • the third storage unit 37 stores signal data that contributes to the error rate of the signal received by the antenna 2 for each antenna angle indicating the installation direction. , are stored as signal data for each antenna angle.
  • the third storage unit 37 stores signal data for each antenna angle measured in advance, signal data for each antenna angle calculated in advance from the characteristics of the antenna 2, or antenna angles processed to facilitate handling. It stores data corresponding to signal data for each unit.
  • the extraction unit 33 selects one continuous angle range including only the antenna angles at which the error rate of the signal received by the antenna 2 is equal to or lower than the threshold. The above may be extracted.
  • the determination unit 35 selects the widest angle range from each of the angle ranges extracted by the extraction unit 33, and determines the antenna angle at which the antenna 2 should be installed within the selected angle range.
  • the extracting unit 33 includes only the antenna angle at which the probability that the error rate of the signal received by the antenna 2 is equal to or lower than each of the plurality of threshold values is the highest, based only on the data stored in the third storage unit 37.
  • a range of continuous angles may be extracted.
  • the determination unit 35 determines the antenna angle at which the antenna 2 should be installed within the angle range extracted by the extraction unit 33 .
  • FIG. 3 is a flow chart showing a first operation example of the antenna direction determination device 1. As shown in FIG.
  • step 100 the antenna direction determination device 1 acquires the received power for each antenna angle through the antenna 2 by the acquisition unit 31.
  • step 102 the antenna direction determination device 1 causes the extraction unit 33 to extract one or more continuous angle ranges including only the antenna angles that satisfy the required received power.
  • step 104 the antenna direction determination device 1 selects the maximum range from each angle range extracted by the extraction unit 33, and determines the antenna angle at which the antenna 2 should be installed within the selected angle range. do.
  • the antenna direction determination device 1 causes the output section 36 to display (output) the antenna angle determined by the determination section 35 to the operator.
  • FIG. 4 is a diagram illustrating features of a second operation example of the antenna direction determination device 1.
  • the extraction unit 33 of the antenna direction determination device 1 selects only the antenna angle at which the probability that the error rate of the signal received by the antenna 2 is equal to or lower than a plurality of thresholds (for example, thresholds a, b, c) is highest. Extract a range of contiguous angles containing .
  • the probability of threshold a is 0.3
  • the probability of threshold b is 0.4
  • the probability of threshold c is 0.3.
  • the probabilities of satisfying the required quality in the angle range X of the antenna 2 are 0.5, 0.6, and 0.7, respectively.
  • the probabilities of satisfying the required quality in the angle range Y of the antenna 2 are 0.4, 0.55, and 0.9, respectively.
  • the extraction unit 33 extracts the range Y as the angle range of the antenna 2 .
  • the antenna direction determination device 1 determines the antenna angle at which the antenna 2 should be installed within the widest angle range or within the range of angles extracted by the extraction unit 33. Therefore, the directivity is Even if the installation direction of a certain antenna 2 changes after installation, the installation direction of the antenna 2 can be determined so as to suppress deterioration in wireless communication quality.
  • each function of the processing unit 3 may be partially or entirely configured by hardware such as PLD (Programmable Logic Device) or FPGA (Field Programmable Gate Array), or may be executed by a processor such as a CPU. It may be configured as a program.
  • hardware such as PLD (Programmable Logic Device) or FPGA (Field Programmable Gate Array)
  • FPGA Field Programmable Gate Array
  • the antenna direction determination device 1 can be realized using a computer and a program, and the program can be recorded on a storage medium or provided through a network.
  • FIG. 5 is a diagram showing a hardware configuration example of the processing unit 3.
  • the processing unit 3 has an input unit 50, an output unit 51, a communication unit 52, a CPU 53, a memory 54, and an HDD 55 connected via a bus 56, and functions as a computer.
  • the processing unit 3 can input/output data to/from a computer-readable storage medium 57 .
  • the input unit 50 is, for example, a keyboard and a mouse.
  • the output unit 51 is, for example, a display device such as a display, and corresponds to the output unit 36 described above.
  • the communication unit 52 is, for example, a wired or wireless network interface.
  • the CPU 53 controls each part constituting the processing unit 3 and performs predetermined processing.
  • the memory 54 and the HDD 55 correspond to the above-described first storage section 32 and second storage section 34 that store data and the like.
  • the storage medium 57 can store programs and the like for executing the functions of the processing unit 3 . Note that the architecture constituting the processing unit 3 is not limited to the example shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

An antenna direction determination device according to one embodiment is characterized by comprising: an extraction unit that, when the installation direction of a directional antenna is changed sequentially and on the basis of signal data contributing to the error rate of a signal received by the antenna at each of antenna angles indicating installation directions, extracts one or more continuous angle ranges including only antenna angles at which the error rate of the signal received by the antenna is less than or equal to a threshold; and a determination unit that selects the widest angle range from the angle ranges extracted by the extraction unit and determines an antenna angle at which the antenna is to be installed within the selected angle range.

Description

アンテナ方向決定装置、アンテナ方向決定方法、及びアンテナ方向決定プログラムAntenna direction determination device, antenna direction determination method, and antenna direction determination program
　本発明は、アンテナ方向決定装置、アンテナ方向決定方法、及びアンテナ方向決定プログラムに関する。 The present invention relates to an antenna direction determination device, an antenna direction determination method, and an antenna direction determination program.
　指向性があるアンテナを用いて無線通信を行うためには、例えば受信信号の誤り率が基準値（閾値）以下になる方向に向けてアンテナを設置する必要がある。 In order to perform wireless communication using a directional antenna, for example, it is necessary to install the antenna in a direction where the error rate of the received signal is below a reference value (threshold).
　アンテナを設置する方向を決定する方法として、受信電波の電力が最大になる方向にアンテナを設置する方法がある。例えば、ノイズ電波を受信し、ノイズレベルのピークが観測される計算時刻と、受信したノイズ電波を測定して実際にノイズレベルのピークが測定された時刻とのずれ量をもとに、アンテナの方位角と仰角の指向誤差を算出し、目標物に対してアンテナの指向方向を調整する際に、算出された指向誤差を利用してアンテナの方位角と仰角を補正する技術が知られている（例えば、特許文献１参照）。 　As a method of determining the direction in which to install the antenna, there is a method of installing the antenna in the direction that maximizes the power of the received radio waves. For example, based on the amount of deviation between the calculated time when a noise radio wave is received and the noise level peak is observed and the time when the received noise radio wave is actually measured and the noise level peak is measured, the antenna A known technique is to calculate the pointing errors of the azimuth and elevation angles and correct the antenna's azimuth and elevation angles using the calculated pointing errors when adjusting the pointing direction of the antenna with respect to a target. (See Patent Document 1, for example).
特開２００７－２４３７９５号公報JP 2007-243795 A
　しかしながら、実際にアンテナを設置する環境においては、送信側・受信側の風、雨、若しくは雪などの天候、動植物の影響、又は振動などの物理的な理由により、アンテナの設置方向が変動してしまうことがある。 However, in the environment where the antenna is actually installed, the antenna installation direction may change due to weather such as wind, rain, or snow on the transmitting and receiving sides, the influence of animals and plants, or physical reasons such as vibration. I can put it away.
　また、アンテナは、温度の変化や、化学的変性（錆）などの外部又は内部の要因により、受信電力が変動する。その変動度合いは、最大受信電力で信号を受信できる方向に向けられたアンテナの角度が少しズレても大きくなる可能性がある。 In addition, the received power of the antenna fluctuates due to external or internal factors such as temperature changes and chemical denaturation (rust). The degree of variation may increase even if the angle of the antenna oriented in the direction in which the signal can be received with the maximum received power is slightly deviated.
　また、アンテナの角度が変動した場合、アンテナが他の方向に向けられた場合に比べて特性が劣化していることがある。そのため、指向性があるアンテナは、方向の変動や、生じる誤差を考慮して設置される方向を決定されることが必要とされている。 Also, when the angle of the antenna fluctuates, the characteristics may deteriorate compared to when the antenna is oriented in another direction. Therefore, it is necessary to determine the installation direction of a directional antenna in consideration of directional fluctuations and errors that occur.
　本発明は、指向性があるアンテナの設置方向が設置後に変動しても、無線通信品質の低下を抑制することができるようにアンテナの設置方向を決定することができるアンテナ方向決定装置、アンテナ方向決定方法、及びアンテナ方向決定プログラムを提供することを目的とする。 The present invention provides an antenna direction determination apparatus and an antenna direction that can determine the installation direction of an antenna so as to suppress deterioration in wireless communication quality even if the installation direction of an antenna having directivity changes after installation. An object is to provide a determination method and an antenna direction determination program.
　本発明の一態様にかかるアンテナ方向決定装置は、指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が閾値以下となるアンテナ角度のみを含む連続する角度の範囲を１つ以上抽出する抽出部と、前記抽出部が抽出した角度の範囲それぞれの中から最も広い範囲を選択し、選択した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定部とを有することを特徴とする。 An antenna direction determination device according to an aspect of the present invention contributes to the error rate of a signal received by the antenna for each antenna angle indicating the installation direction when the installation direction of the antenna having directivity is changed sequentially. an extraction unit for extracting one or more continuous angle ranges including only antenna angles at which the error rate of the signal received by the antenna is equal to or less than a threshold based on each of the signal data; and the angle range extracted by the extraction unit. a determination unit that selects the widest range from each of them and determines the antenna angle at which the antenna should be installed within the selected range of angles.
　また、本発明の一態様にかかるアンテナ方向決定装置は、指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が複数の閾値それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出する抽出部と、前記抽出部が抽出した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定部とを有することを特徴とする。 Further, in the antenna direction determination device according to one aspect of the present invention, when the installation direction of a directional antenna is sequentially changed, the error rate of the signal received by the antenna for each antenna angle indicating the installation direction is an extraction unit for extracting, based on each of the contributing signal data, a continuous angle range including only the antenna angle at which the probability that the error rate of the signal received by the antenna is equal to or lower than each of a plurality of thresholds is highest; and a determination unit that determines an antenna angle at which the antenna should be installed within the range of angles extracted by the unit.
　また、本発明の一態様にかかるアンテナ方向決定方法は、指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が閾値以下となるアンテナ角度のみを含む連続する角度の範囲を１つ以上抽出する抽出工程と、抽出した角度の範囲それぞれの中から最も広い角度の範囲を選択し、選択した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定工程とを含むことを特徴とする。 Further, in the antenna direction determination method according to one aspect of the present invention, when the installation direction of a directional antenna is sequentially changed, the error rate of the signal received by the antenna is changed for each antenna angle indicating the installation direction. An extraction step of extracting one or more continuous angle ranges containing only antenna angles at which the error rate of the signal received by the antenna is equal to or less than a threshold value, based on each of the contributing signal data, and extracting each of the extracted angle ranges a determining step of selecting the widest range of angles and determining the antenna angle at which the antenna should be installed within the selected range of angles.
　また、本発明の一態様にかかるアンテナ方向決定方法は、指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が複数の閾値それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出する抽出工程と、抽出した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定工程とを含むことを特徴とする。 Further, in the antenna direction determination method according to one aspect of the present invention, when the installation direction of a directional antenna is sequentially changed, the error rate of the signal received by the antenna for each antenna angle indicating the installation direction is extracting, based on each of the contributing signal data, a contiguous range of angles that includes only those antenna angles for which the error rate of the signal received by the antenna has the highest probability of being below each of a plurality of thresholds; and determining an antenna angle at which the antenna should be installed within a range of angles.
　本発明によれば、指向性があるアンテナの設置方向が設置後に変動しても、無線通信品質の低下を抑制することができるようにアンテナの設置方向を決定することができる。 According to the present invention, even if the installation direction of a directional antenna changes after installation, it is possible to determine the installation direction of the antenna so as to suppress deterioration in wireless communication quality.
一実施形態にかかるアンテナ方向決定装置が有する機能を例示する機能ブロック図である。3 is a functional block diagram illustrating functions of an antenna direction determination device according to one embodiment; FIG. アンテナが受信する信号の誤り率が所定の閾値以下となるアンテナ角度の連続する範囲を抽出部が抽出する処理を模式的に示すグラフである。FIG. 10 is a graph schematically showing a process in which an extraction unit extracts a continuous range of antenna angles in which the error rate of a signal received by the antenna is equal to or lower than a predetermined threshold; FIG. アンテナ方向決定装置の第１動作例を示すフローチャートである。4 is a flow chart showing a first operation example of the antenna direction determination device; アンテナ方向決定装置の第２動作例の特徴を例示する図である。FIG. 10 is a diagram illustrating features of a second operation example of the antenna direction determination device; 処理部のハードウェア構成例を示す図である。It is a figure which shows the hardware structural example of a process part. （ａ）は、比較例の受信装置に対してアンテナの方向を決定した結果を例示するグラフである。（ｂ）は、比較例の受信装置のアンテナの方向が外部からの影響等によりズレる範囲を例示するグラフである。(a) is a graph illustrating the result of determining the direction of the antenna with respect to the receiving device of the comparative example. (b) is a graph exemplifying a range in which the direction of the antenna of the receiving device of the comparative example is deviated due to external influences and the like.
　まず、本発明がなされるに至った背景について説明する。図６は、指向性があるアンテナを備えた受信装置の調整可能なアンテナ方向を示す角度と、当該角度における受信電力との関係を例示するグラフである。図６（ａ）は、比較例の受信装置に対してアンテナの方向（角度）を決定した結果を例示するグラフである。図６（ｂ）は、比較例の受信装置のアンテナの方向（角度）が外部からの影響等によりズレる範囲を例示するグラフである。 First, the background that led to the invention will be explained. FIG. 6 is a graph illustrating a relationship between an angle indicating an adjustable antenna direction of a receiving apparatus having a directional antenna and received power at that angle. FIG. 6A is a graph illustrating the result of determining the direction (angle) of the antenna for the receiver of the comparative example. FIG. 6B is a graph exemplifying the range in which the direction (angle) of the antenna of the receiving device of the comparative example deviates due to external influences and the like.
　図６（ａ）に示したように、比較例の受信装置は、必要な通信品質を示す閾値Ａ以上の受信電力を得られ、かつ、最も大きな受信電力となる角度Ｂがアンテナの設置方向として決定される。 As shown in FIG. 6(a), the receiving apparatus of the comparative example can obtain received power equal to or higher than the threshold A indicating the required communication quality, and the angle B at which the received power is the largest is set as the installation direction of the antenna. It is determined.
　ここで、閾値Ａは、必要最低の通信品質を示す基準値である。例えば、受信電力が閾値Ａ以上であれば、アンテナが受信する信号の誤り率が必要最低の通信品質を示す基準値以下になることを示す。 Here, the threshold A is a reference value indicating the minimum required communication quality. For example, if the received power is equal to or higher than the threshold A, it indicates that the error rate of the signal received by the antenna is equal to or lower than the reference value indicating the minimum required communication quality.
　また、図６（ｂ）に示したように、比較例の受信装置は、アンテナの方向（角度）が外部からの影響等により、例えばＣの範囲で変動することがある。このとき、比較例の受信装置は、角度Ｂがアンテナの方向として決定されている場合、Ｃの範囲内で受信電力が閾値Ａ未満となることがある。つまり、比較例の受信装置は、アンテナの方向の変動により、誤り率が必要最低の通信品質を示す基準値よりも大きくなってしまうことがある。 Also, as shown in FIG. 6(b), in the receiving device of the comparative example, the direction (angle) of the antenna may fluctuate, for example, within the range of C due to external influences and the like. At this time, in the receiving apparatus of the comparative example, the received power may be less than the threshold A within the range of C when the angle B is determined as the direction of the antenna. In other words, in the receiver of the comparative example, the error rate may become larger than the reference value indicating the minimum required communication quality due to the change in the direction of the antenna.
　そこで、一実施形態にかかるアンテナ方向決定装置は、アンテナの設置方向が設置後に変動しても、無線通信品質の低下を抑制することができるようにアンテナの設置方向を決定するように構成される。 Therefore, an antenna direction determination apparatus according to one embodiment is configured to determine the installation direction of an antenna so as to suppress deterioration in wireless communication quality even if the installation direction of the antenna changes after installation. .
　以下に、図面を用いてアンテナ方向決定装置の一実施形態を説明する。図１は、一実施形態にかかるアンテナ方向決定装置１が有する機能を例示する機能ブロック図である。図１に示すように、アンテナ方向決定装置１は、例えばアンテナ２及び処理部３を有する。 An embodiment of the antenna direction determination device will be described below using the drawings. FIG. 1 is a functional block diagram illustrating functions of an antenna direction determination device 1 according to one embodiment. As shown in FIG. 1, the antenna direction determination device 1 has an antenna 2 and a processing unit 3, for example.
　アンテナ２は、例えばＶＨＦ帯などの低周波数帯の指向性があるアンテナであり、作業者が手動で設置方向を変えることができるように設けられている。また、アンテナ２は、操作入力によって方向を変える機構がもうけられていてもよいし、動的に方向を変えるように構成されていてもよい。 The antenna 2 is, for example, an antenna with directivity in a low frequency band such as the VHF band, and is provided so that the installation direction can be manually changed by the operator. Further, the antenna 2 may be provided with a mechanism for changing the direction by an operation input, or may be configured to dynamically change the direction.
　また、アンテナ２は、３６０度の範囲で方向を変えるように構成されてもいし、所定の範囲内で方向を変えるように構成されていてもよい。また、アンテナ２は、任意の３次元方向に向けられるように設けられていてもよい。 Also, the antenna 2 may be configured to change its direction within a range of 360 degrees, or may be configured to change its direction within a predetermined range. Also, the antenna 2 may be provided so as to be oriented in any three-dimensional direction.
　処理部３は、受信部３０、取得部３１、第１記憶部３２、抽出部３３、第２記憶部３４、決定部３５、出力部３６、及び第３記憶部３７を有する。 The processing unit 3 has a receiving unit 30 , an obtaining unit 31 , a first storage unit 32 , an extraction unit 33 , a second storage unit 34 , a determination unit 35 , an output unit 36 and a third storage unit 37 .
　受信部３０は、図示しない送信装置が送信した信号を、アンテナ２を介して受信し、受信した信号を取得部３１に対して出力する。 The reception unit 30 receives a signal transmitted by a transmission device (not shown) via the antenna 2 and outputs the received signal to the acquisition unit 31 .
　取得部３１は、アンテナ２の設置方向が順次に変えられた場合に、アンテナ２が受信する信号の誤り率に寄与する信号データを、アンテナ２の設置方向を示すアンテナ角度ごとに取得し、第１記憶部３２に対して出力する。 The acquisition unit 31 acquires signal data contributing to the error rate of the signal received by the antenna 2 for each antenna angle indicating the installation direction of the antenna 2 when the installation direction of the antenna 2 is sequentially changed. 1 storage unit 32.
　例えば、取得部３１が取得する信号データは、アンテナ２を介して受信部３０が受信する信号の受信強度などである。なお、アンテナ２が受信する信号の誤り率に寄与する信号データは、図示しない送信装置が信号を送信する状態と送信を止めた状態との差（Ｃ／Ｎ）や、他の指標であってもよい。 For example, the signal data acquired by the acquisition unit 31 is the reception strength of the signal received by the reception unit 30 via the antenna 2, and the like. The signal data that contributes to the error rate of the signal received by the antenna 2 may be the difference (C/N) between a state in which a transmission device (not shown) transmits a signal and a state in which the transmission is stopped, or other indicators. good too.
　第１記憶部３２は、取得部３１が取得した信号データをアンテナ角度ごとに記憶し、抽出部３３からのアクセスに応じて出力する。 The first storage unit 32 stores the signal data acquired by the acquisition unit 31 for each antenna angle, and outputs it in response to access from the extraction unit 33 .
　抽出部３３は、第１記憶部３２から読み出した信号データ及びアンテナ角度に基づいて、アンテナ２が受信する信号の誤り率が所定の閾値以下となるアンテナ角度のみを含む連続する角度の範囲を１つ以上抽出し、抽出した角度の範囲を示すデータ（データ系列）を第２記憶部３４に対して出力する。 Based on the signal data and the antenna angles read from the first storage unit 32, the extracting unit 33 selects a range of continuous angles including only the antenna angles at which the error rate of the signal received by the antenna 2 is equal to or lower than a predetermined threshold. At least one angle is extracted, and data (data series) indicating the extracted range of angles is output to the second storage unit 34 .
　図２は、アンテナ２が受信する信号の誤り率が所定の閾値以下となるアンテナ角度のみを含む連続する角度の範囲を抽出部３３が抽出する処理を模式的に示すグラフである。 FIG. 2 is a graph schematically showing the process by which the extraction unit 33 extracts a continuous angle range including only the antenna angles at which the error rate of the signal received by the antenna 2 is equal to or less than a predetermined threshold.
　図２に示したように、抽出部３３は、例えば受信電力が閾値Ａ以上である範囲Ｄ，Ｆを抽出する。なお、閾値Ａは、上述したように、必要最低の通信品質を示す基準値である。すなわち、受信電力が閾値Ａ以上であれば、アンテナ２が受信する信号の誤り率が必要最低の通信品質を示す基準値以下になる。 As shown in FIG. 2, the extraction unit 33 extracts ranges D and F in which the received power is equal to or greater than the threshold A, for example. Note that the threshold A is a reference value indicating the minimum required communication quality, as described above. That is, when the received power is equal to or higher than the threshold A, the error rate of the signal received by the antenna 2 is equal to or lower than the reference value indicating the minimum required communication quality.
　また、抽出部３３は、第１記憶部３２から読み出した信号データ及びアンテナ角度に基づいて、アンテナ２が受信する信号の誤り率が複数の閾値（図５を用いて後述）それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出し、抽出した角度の範囲を示すデータを第２記憶部３４に対して出力するように構成されてもよい。 Further, based on the signal data and the antenna angle read from the first storage unit 32, the extraction unit 33 determines the probability that the error rate of the signal received by the antenna 2 is equal to or lower than a plurality of threshold values (described later using FIG. 5). may be configured to extract a continuous angle range including only the antenna angle with the highest , and output data indicating the extracted angle range to the second storage unit 34 .
　また、抽出部３３は、アンテナ２の設置方向の変動の特徴が推定される場合などには、当該特徴通りにアンテナ２が変動したときに無線通信の最低品質を遵守できる時間又はデータ量が最大となるように範囲を抽出してもよい。 Further, when the feature of the change in the installation direction of the antenna 2 is estimated, the extracting unit 33 determines that the time or data amount that allows compliance with the minimum quality of wireless communication is maximized when the antenna 2 changes according to the feature. The range may be extracted so that
　さらに、抽出部３３は、第１記憶部３２から信号データ及びアンテナ角度を読出すことなく、後述する第３記憶部３７が予め記憶している信号データ及びアンテナ角度それぞれなどに基づいて、上述した角度の範囲それぞれを抽出してもよい。 Further, the extraction unit 33 does not read out the signal data and the antenna angle from the first storage unit 32, but based on the signal data and the antenna angle previously stored in the third storage unit 37, which will be described later. Each range of angles may be extracted.
　なお、アンテナ角度のデータは、例えば離散的な値であるとする。また、信号データとアンテナ角度の対応は、数式によって示されてもよい。 It should be noted that the antenna angle data is, for example, discrete values. Also, the correspondence between the signal data and the antenna angle may be represented by a mathematical formula.
　第２記憶部３４（図１）は、抽出部３３が抽出した角度の範囲を示すデータを記憶し、決定部３５からのアクセスに応じて出力する。 The second storage unit 34 (FIG. 1) stores data indicating the range of angles extracted by the extraction unit 33, and outputs the data in response to access from the determination unit 35.
　決定部３５は、第２記憶部３４から読み出した角度の範囲それぞれの中から最も広い角度の範囲を選択し、選択した角度の範囲内でアンテナ２を設置すべきアンテナ角度を決定し、決定した結果を出力部３６に対して出力する。 The determination unit 35 selects the widest angle range from each of the angle ranges read from the second storage unit 34, and determines and determines the antenna angle at which the antenna 2 should be installed within the selected angle range. The result is output to the output unit 36 .
　例えば、決定部３５は、図２に示した範囲Ｄ，Ｆの中から最も広い範囲である範囲Ｆを選択し、範囲Ｆ内でアンテナ２を設置すべきアンテナ角度を決定する。例えば、決定部３５が角度Ｅをアンテナ角度と決定した場合、アンテナ２の方向（角度）が外部からの影響等により、例えばＣの範囲で変動しても、アンテナ方向決定装置１は、常に閾値Ａ以上の受信電力で信号を受信することができる。つまり、アンテナ方向決定装置１は、信号の誤り率を必要最低の通信品質を示す基準値以下にすることができる。 For example, the determination unit 35 selects range F, which is the widest range, from ranges D and F shown in FIG. For example, when the determination unit 35 determines the angle E as the antenna angle, even if the direction (angle) of the antenna 2 fluctuates, for example, within the range C due to external influences, the antenna direction determination device 1 always sets the threshold A signal can be received with a reception power of A or higher. In other words, the antenna direction determination device 1 can make the signal error rate equal to or lower than the reference value indicating the minimum necessary communication quality.
　また、決定部３５は、抽出部３３が抽出した最も広い角度の範囲の中心を、アンテナ２を設置すべきアンテナ角度として決定してもよい。 Further, the determination unit 35 may determine the center of the widest angle range extracted by the extraction unit 33 as the antenna angle at which the antenna 2 should be installed.
　また、決定部３５は、アンテナ２が受信する信号の誤り率が複数の閾値それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出部３３が抽出した場合には、抽出部３３が抽出した角度の範囲内でアンテナ２を設置すべきアンテナ角度を決定する（図５を用いて後述）。このとき、決定部３５は、例えば抽出部３３が抽出した角度の範囲の中心を、アンテナ２を設置すべきアンテナ角度として決定する。 Further, when the extracting unit 33 extracts a continuous angle range including only the antenna angle at which the probability that the error rate of the signal received by the antenna 2 is equal to or lower than each of the plurality of thresholds is highest, the deciding unit 35 An antenna angle at which the antenna 2 should be installed is determined within the range of angles extracted by the extraction unit 33 (described later with reference to FIG. 5). At this time, the determination unit 35 determines, for example, the center of the angle range extracted by the extraction unit 33 as the antenna angle at which the antenna 2 should be installed.
　出力部３６は、決定部３５が決定した結果を例えば表示することによって出力し、作業者にアンテナ２を設置すべきアンテナ角度を提示する。 The output unit 36 outputs the result determined by the determination unit 35 by, for example, displaying it, and presents the antenna angle at which the antenna 2 should be installed to the worker.
　第３記憶部３７は、第１記憶部３２が記憶するアンテナ角度ごとの信号データに対応するデータを予め記憶しており、抽出部３３からのアクセスに応じてデータを出力する。 The third storage unit 37 stores in advance data corresponding to the signal data for each antenna angle stored in the first storage unit 32, and outputs data in response to access from the extraction unit 33.
　より具体的には、第３記憶部３７は、アンテナ２の設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとにアンテナ２が受信する信号の誤り率に寄与する信号データを、アンテナ角度ごとの信号データとして記憶している。 More specifically, when the installation direction of the antenna 2 is sequentially changed, the third storage unit 37 stores signal data that contributes to the error rate of the signal received by the antenna 2 for each antenna angle indicating the installation direction. , are stored as signal data for each antenna angle.
　例えば、第３記憶部３７は、予め測定されたアンテナ角度ごとの信号データ、アンテナ２の特性などから予め算出されたアンテナ角度ごとの信号データ、又は取り扱いを容易にするように加工されたアンテナ角度ごとの信号データに相当するデータなどを記憶している。 For example, the third storage unit 37 stores signal data for each antenna angle measured in advance, signal data for each antenna angle calculated in advance from the characteristics of the antenna 2, or antenna angles processed to facilitate handling. It stores data corresponding to signal data for each unit.
　つまり、抽出部３３は、第３記憶部３７が記憶しているデータのみに基づいて、アンテナ２が受信する信号の誤り率が閾値以下となるアンテナ角度のみを含む連続する角度の範囲を１つ以上抽出してもよい。 That is, based on only the data stored in the third storage unit 37, the extraction unit 33 selects one continuous angle range including only the antenna angles at which the error rate of the signal received by the antenna 2 is equal to or lower than the threshold. The above may be extracted.
　このとき、決定部３５は、抽出部３３が抽出した角度の範囲それぞれの中から最も広い角度の範囲を選択し、選択した角度の範囲内でアンテナ２を設置すべきアンテナ角度を決定する。 At this time, the determination unit 35 selects the widest angle range from each of the angle ranges extracted by the extraction unit 33, and determines the antenna angle at which the antenna 2 should be installed within the selected angle range.
　また、抽出部３３は、第３記憶部３７が記憶しているデータのみに基づいて、アンテナ２が受信する信号の誤り率が複数の閾値それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出してもよい。 Further, the extracting unit 33 includes only the antenna angle at which the probability that the error rate of the signal received by the antenna 2 is equal to or lower than each of the plurality of threshold values is the highest, based only on the data stored in the third storage unit 37. A range of continuous angles may be extracted.
　このとき、決定部３５は、抽出部３３が抽出した角度の範囲内でアンテナ２を設置すべきアンテナ角度を決定する。 At this time, the determination unit 35 determines the antenna angle at which the antenna 2 should be installed within the angle range extracted by the extraction unit 33 .
　次に、アンテナ方向決定装置１の第１動作例について説明する。図３は、アンテナ方向決定装置１の第１動作例を示すフローチャートである。 Next, a first operation example of the antenna direction determination device 1 will be described. FIG. 3 is a flow chart showing a first operation example of the antenna direction determination device 1. As shown in FIG.
　ステップ１００（Ｓ１００）において、アンテナ方向決定装置１は、アンテナ２を介して取得部３１が受信電力をアンテナ角度ごとに取得する。 In step 100 (S100), the antenna direction determination device 1 acquires the received power for each antenna angle through the antenna 2 by the acquisition unit 31.
　ステップ１０２（Ｓ１０２）において、アンテナ方向決定装置１は、必要な受信電力を満たすアンテナ角度のみを含む連続する角度の範囲を抽出部３３が１つ以上抽出する。 In step 102 (S102), the antenna direction determination device 1 causes the extraction unit 33 to extract one or more continuous angle ranges including only the antenna angles that satisfy the required received power.
　ステップ１０４（Ｓ１０４）において、アンテナ方向決定装置１は、抽出部３３が抽出した角度の範囲それぞれの中から最大範囲を選択し、選択した角度の範囲内でアンテナ２を設置すべきアンテナ角度を決定する。 In step 104 (S104), the antenna direction determination device 1 selects the maximum range from each angle range extracted by the extraction unit 33, and determines the antenna angle at which the antenna 2 should be installed within the selected angle range. do.
　ステップ１０６（Ｓ１０６）において、アンテナ方向決定装置１は、決定部３５が決定したアンテナ角度を出力部３６が作業者に表示（出力）して提示する。 At step 106 (S106), the antenna direction determination device 1 causes the output section 36 to display (output) the antenna angle determined by the determination section 35 to the operator.
　次に、アンテナ方向決定装置１の第２動作例について説明する。図４は、アンテナ方向決定装置１の第２動作例の特徴を例示する図である。 Next, a second operation example of the antenna direction determination device 1 will be described. FIG. 4 is a diagram illustrating features of a second operation example of the antenna direction determination device 1. FIG.
　上述したように、アンテナ方向決定装置１の抽出部３３は、アンテナ２が受信する信号の誤り率が複数の閾値（例えば閾値ａ．ｂ．ｃ）それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出する。 As described above, the extraction unit 33 of the antenna direction determination device 1 selects only the antenna angle at which the probability that the error rate of the signal received by the antenna 2 is equal to or lower than a plurality of thresholds (for example, thresholds a, b, c) is highest. Extract a range of contiguous angles containing .
　図４に示したように、例えば、閾値ａがとる確率は０．３、閾値ｂがとる確率は０．４、閾値ｃがとる確率は０．３であるとする。このとき、アンテナ２の角度の範囲Ｘで必要品質を満たす確率はそれぞれ０．５，０．６，０．７であるとする。また、アンテナ２の角度の範囲Ｙで必要品質を満たす確率はそれぞれ０．４，０．５５，０．９であるとする。 As shown in FIG. 4, for example, the probability of threshold a is 0.3, the probability of threshold b is 0.4, and the probability of threshold c is 0.3. At this time, it is assumed that the probabilities of satisfying the required quality in the angle range X of the antenna 2 are 0.5, 0.6, and 0.7, respectively. Further, it is assumed that the probabilities of satisfying the required quality in the angle range Y of the antenna 2 are 0.4, 0.55, and 0.9, respectively.
　閾値ａ，ｂ，ｃのように上述した確率で必要品質が変動する場合、範囲Ｘで必要品質を満たす確率は０．６であり、範囲Ｙで必要品質を満たす確率は０．６１である。よって、この場合には、抽出部３３は、アンテナ２の角度の範囲として、範囲Ｙを抽出する。 When the required quality fluctuates with the above probabilities like the threshold values a, b, and c, the probability that the required quality is satisfied in the range X is 0.6, and the probability that the required quality is satisfied in the range Y is 0.61. Therefore, in this case, the extraction unit 33 extracts the range Y as the angle range of the antenna 2 .
　このように、一実施形態にかかるアンテナ方向決定装置１は、抽出部３３が抽出した最も広い角度の範囲内又は角度の範囲内でアンテナ２を設置すべきアンテナ角度を決定するので、指向性があるアンテナ２の設置方向が設置後に変動しても、無線通信品質の低下を抑制することができるようにアンテナ２の設置方向を決定することができる。 As described above, the antenna direction determination device 1 according to one embodiment determines the antenna angle at which the antenna 2 should be installed within the widest angle range or within the range of angles extracted by the extraction unit 33. Therefore, the directivity is Even if the installation direction of a certain antenna 2 changes after installation, the installation direction of the antenna 2 can be determined so as to suppress deterioration in wireless communication quality.
　なお、処理部３が有する各機能は、それぞれ一部又は全部がＰＬＤ（Programmable Logic Device）やＦＰＧＡ（Field Programmable Gate Array）等のハードウェアによって構成されてもよいし、ＣＰＵ等のプロセッサが実行するプログラムとして構成されてもよい。 In addition, each function of the processing unit 3 may be partially or entirely configured by hardware such as PLD (Programmable Logic Device) or FPGA (Field Programmable Gate Array), or may be executed by a processor such as a CPU. It may be configured as a program.
　例えば、本発明にかかるアンテナ方向決定装置１は、コンピュータとプログラムを用いて実現することができ、プログラムを記憶媒体に記録することも、ネットワークを通して提供することも可能である。 For example, the antenna direction determination device 1 according to the present invention can be realized using a computer and a program, and the program can be recorded on a storage medium or provided through a network.
　図５は、処理部３のハードウェア構成例を示す図である。図５に示すように、例えば処理部３は、入力部５０、出力部５１、通信部５２、ＣＰＵ５３、メモリ５４及びＨＤＤ５５がバス５６を介して接続され、コンピュータとしての機能を備える。また、処理部３は、コンピュータ読み取り可能な記憶媒体５７との間でデータを入出力することができるようにされている。 FIG. 5 is a diagram showing a hardware configuration example of the processing unit 3. As shown in FIG. As shown in FIG. 5, for example, the processing unit 3 has an input unit 50, an output unit 51, a communication unit 52, a CPU 53, a memory 54, and an HDD 55 connected via a bus 56, and functions as a computer. In addition, the processing unit 3 can input/output data to/from a computer-readable storage medium 57 .
　入力部５０は、例えばキーボード及びマウス等である。出力部５１は、例えばディスプレイなどの表示装置であり、上述した出力部３６に対応する。通信部５２は、例えば有線又は無線のネットワークインターフェースである。 The input unit 50 is, for example, a keyboard and a mouse. The output unit 51 is, for example, a display device such as a display, and corresponds to the output unit 36 described above. The communication unit 52 is, for example, a wired or wireless network interface.
　ＣＰＵ５３は、処理部３を構成する各部を制御し、所定の処理等を行う。メモリ５４及びＨＤＤ５５は、データ等を記憶する上述の第１記憶部３２及び第２記憶部３４に対応する。記憶媒体５７は、処理部３が有する機能を実行させるプログラム等を記憶可能にされている。なお、処理部３を構成するアーキテクチャは図５に示した例に限定されない。 The CPU 53 controls each part constituting the processing unit 3 and performs predetermined processing. The memory 54 and the HDD 55 correspond to the above-described first storage section 32 and second storage section 34 that store data and the like. The storage medium 57 can store programs and the like for executing the functions of the processing unit 3 . Note that the architecture constituting the processing unit 3 is not limited to the example shown in FIG.
　１・・・アンテナ方向決定装置、２・・・アンテナ、３・・・処理部、３０・・・受信部、３１・・・取得部、３２・・・第１記憶部、３３・・・抽出部、３４・・・第２記憶部、３５・・・決定部、３６・・・出力部、３７・・・第３記憶部、５０・・・入力部、５１・・・出力部、５２・・・通信部、５３・・・ＣＰＵ、５４・・・メモリ、５５・・・ＨＤＤ、５６・・・バス、５７・・・記憶媒体 DESCRIPTION OF SYMBOLS 1... Antenna direction determination apparatus, 2... Antenna, 3... Processing part, 30... Reception part, 31... Acquisition part, 32... First storage part, 33... Extraction Section 34 Second storage section 35 Determination section 36 Output section 37 Third storage section 50 Input section 51 Output section 52 Communication unit 53 CPU 54 memory 55 HDD 56 bus 57 storage medium

Claims (8)

  1. 　指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が閾値以下となるアンテナ角度のみを含む連続する角度の範囲を１つ以上抽出する抽出部と、
    　前記抽出部が抽出した角度の範囲それぞれの中から最も広い角度の範囲を選択し、選択した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定部と
    　を有することを特徴とするアンテナ方向決定装置。     A signal received by the antenna based on each of the signal data contributing to the error rate of the signal received by the antenna for each antenna angle indicating the installation direction when the installation direction of the antenna having directivity is sequentially changed. An extraction unit that extracts one or more continuous angle ranges including only the antenna angles at which the error rate of is equal to or lower than the threshold;
    a determination unit that selects the widest angle range from each of the angle ranges extracted by the extraction unit and determines the antenna angle at which the antenna should be installed within the selected angle range. Antenna pointing device.
  2. 　前記決定部は、
    　前記抽出部が抽出した最も広い角度の範囲の中心を、前記アンテナを設置すべきアンテナ角度として決定すること
    　を特徴とする請求項１に記載のアンテナ方向決定装置。     The decision unit
    The antenna direction determining apparatus according to claim 1, wherein the center of the widest angle range extracted by the extraction unit is determined as the antenna angle at which the antenna should be installed.
  3. 　指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が複数の閾値それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出する抽出部と、
    　前記抽出部が抽出した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定部と
    　を有することを特徴とするアンテナ方向決定装置。     A signal received by the antenna based on each of the signal data contributing to the error rate of the signal received by the antenna for each antenna angle indicating the installation direction when the installation direction of the antenna having directivity is sequentially changed. an extraction unit that extracts a continuous angle range that includes only the antenna angle at which the probability that the error rate of is below each of a plurality of thresholds is highest;
    and a determination unit that determines an antenna angle at which the antenna should be installed within the range of angles extracted by the extraction unit.
  4. 　前記決定部は、
    　前記抽出部が抽出した角度の範囲の中心を、前記アンテナを設置すべきアンテナ角度として決定すること
    　を特徴とする請求項３に記載のアンテナ方向決定装置。     The decision unit
    4. The antenna direction determination device according to claim 3, wherein the center of the range of angles extracted by the extraction unit is determined as the antenna angle at which the antenna should be installed.
  5. 　指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が閾値以下となるアンテナ角度のみを含む連続する角度の範囲を１つ以上抽出する抽出工程と、
    　抽出した角度の範囲それぞれの中から最も広い範囲を選択し、選択した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定工程と
    　を含むことを特徴とするアンテナ方向決定方法。     A signal received by the antenna based on each of the signal data contributing to the error rate of the signal received by the antenna for each antenna angle indicating the installation direction when the installation direction of the antenna having directivity is sequentially changed. An extraction step of extracting one or more continuous angle ranges including only the antenna angles at which the error rate of is equal to or lower than the threshold;
    selecting the widest range from each of the extracted angle ranges, and determining the antenna angle at which the antenna should be installed within the selected range of angles.
  6. 　前記決定工程では、
    　抽出した最も広い角度の範囲の中心を、前記アンテナを設置すべきアンテナ角度として決定すること
    　を特徴とする請求項５に記載のアンテナ方向決定方法。     In the determining step,
    6. The antenna direction determination method according to claim 5, wherein the center of the extracted widest angle range is determined as the antenna angle at which the antenna should be installed.
  7. 　指向性があるアンテナの設置方向が順次に変えられた場合に、設置方向を示すアンテナ角度ごとに前記アンテナが受信する信号の誤り率に寄与する信号データそれぞれに基づいて、前記アンテナが受信する信号の誤り率が複数の閾値それぞれ以下になる確率が最も高くなるアンテナ角度のみを含む連続する角度の範囲を抽出する抽出工程と、
    　抽出した角度の範囲内で前記アンテナを設置すべきアンテナ角度を決定する決定工程と
    　を含むことを特徴とするアンテナ方向決定方法。     A signal received by the antenna based on each of the signal data contributing to the error rate of the signal received by the antenna for each antenna angle indicating the installation direction when the installation direction of the antenna having directivity is sequentially changed. an extracting step of extracting a continuous angle range including only the antenna angle at which the probability that the error rate of is below each of a plurality of thresholds is highest;
    and determining an antenna angle at which the antenna should be installed within the range of the extracted angles.
  8. 　請求項１～４のいずれか１項に記載のアンテナ方向決定装置の各部としてコンピュータを機能させるためのアンテナ方向決定プログラム。 An antenna direction determination program for causing a computer to function as each part of the antenna direction determination device according to any one of claims 1 to 4.
PCT/JP2021/030863 2021-08-23 2021-08-23 Antenna direction determination device, antenna direction determination method, and antenna direction determination program WO2023026339A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2021/030863 WO2023026339A1 (en) 2021-08-23 2021-08-23 Antenna direction determination device, antenna direction determination method, and antenna direction determination program
JP2023543503A JPWO2023026339A1 (en) 2021-08-23 2021-08-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/030863 WO2023026339A1 (en) 2021-08-23 2021-08-23 Antenna direction determination device, antenna direction determination method, and antenna direction determination program

Publications (1)

Publication Number Publication Date
WO2023026339A1 true WO2023026339A1 (en) 2023-03-02

Family

ID=85321623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/030863 WO2023026339A1 (en) 2021-08-23 2021-08-23 Antenna direction determination device, antenna direction determination method, and antenna direction determination program

Country Status (2)

Country Link
JP (1) JPWO2023026339A1 (en)
WO (1) WO2023026339A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013106101A (en) * 2011-11-10 2013-05-30 Canon Inc Communication device, communication system, control method, communication method, and program
WO2017150255A1 (en) * 2016-03-03 2017-09-08 株式会社日立国際電気 Antenna angle control system
JP2017208620A (en) * 2016-05-16 2017-11-24 富士通株式会社 Information processing device, terminal device, electronic device, and control program

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013106101A (en) * 2011-11-10 2013-05-30 Canon Inc Communication device, communication system, control method, communication method, and program
WO2017150255A1 (en) * 2016-03-03 2017-09-08 株式会社日立国際電気 Antenna angle control system
JP2017208620A (en) * 2016-05-16 2017-11-24 富士通株式会社 Information processing device, terminal device, electronic device, and control program

Also Published As

Publication number Publication date
JPWO2023026339A1 (en) 2023-03-02

Similar Documents

Publication Publication Date Title
JP5134624B2 (en) Base station apparatus and directivity control method in mobile communication system
JP4973382B2 (en) Position estimation method and position estimation system
US8150413B2 (en) Radio network designing apparatus and method
KR101874361B1 (en) System and method for satellite communication of vessel
JP6835582B2 (en) Electromagnetic interference wave measuring device, electromagnetic interference wave measuring method, and electromagnetic interference wave measuring program
AU2016274145B2 (en) Systems and methods for antenna analysis and validation
WO2023026339A1 (en) Antenna direction determination device, antenna direction determination method, and antenna direction determination program
JP4015180B2 (en) Arrival direction estimation apparatus, arrival direction estimation method, and obstacle estimation apparatus
CN104467938A (en) Method and system for selecting diversity reception merging mode
EP3120417B1 (en) Method for finding signal direction using modal antenna
US10476724B2 (en) Scanning in a wireless network
WO2023032136A1 (en) Antenna direction evaluating device, antenna direction evaluating method, and antenna direction evaluating program
CN108601034B (en) Network working parameter optimization method based on random gradient descent method
CN114257278B (en) Communication method, device and system
JP4014981B2 (en) Arrival direction estimation apparatus and arrival direction estimation method
WO2017119275A1 (en) Communication load estimation system, information processing device, method, and program
US10939245B2 (en) Position estimation system
JP5167509B2 (en) Automatic channel selection for wireless LAN access points
JP6326646B2 (en) Attenuation characteristic function estimation device, attenuation characteristic function estimation method, and program
US11522620B2 (en) Method for adjusting antenna and communication device using same
US11159251B2 (en) Antenna control method and communication system control method
JP7046285B1 (en) Communication traffic analyzer, control circuit, storage medium and communication traffic analysis method
WO2022064709A1 (en) Radio relay system, radio relay method, software radio machine for radio relay, and radio relay program
WO2023243155A1 (en) Distance measurement device
WO2023012950A1 (en) Antenna positioning direction presentation device, antenna positioning direction presentation method, and antenna positioning direction presentation program

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21954956

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2023543503

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE