JPH02162857A - Communication method using light and radio wave - Google Patents
Communication method using light and radio waveInfo
- Publication number
- JPH02162857A JPH02162857A JP63316658A JP31665888A JPH02162857A JP H02162857 A JPH02162857 A JP H02162857A JP 63316658 A JP63316658 A JP 63316658A JP 31665888 A JP31665888 A JP 31665888A JP H02162857 A JPH02162857 A JP H02162857A
- Authority
- JP
- Japan
- Prior art keywords
- stations
- master station
- master
- radio waves
- station
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 7
- 239000013307 optical fiber Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は通信媒体として光と電波を併用した通信方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a communication method that uses both light and radio waves as communication media.
「従来の技術」
従来からオフィス、工場内などの近距離通信には、光空
間伝送ＬＡＮシステムとワイヤレスＬＡＮシステムが知
られている。これはある一定範囲内で、ケーブル配線を
省き、機器のレイアウト変更などに柔軟に対応したり、
移動する端局との通信をするのに用いられる。"Prior Art" Optical space transmission LAN systems and wireless LAN systems have been known for short-distance communication in offices, factories, etc. Within a certain range, this can eliminate cable wiring, flexibly respond to changes in equipment layout, etc.
Used to communicate with mobile terminal stations.
［発明が解決しようとする課題」
従来の光空間伝送ＬＡＮシステムは、相互の局間の見通
しが悪い場合、通信不能であるばかりか、通信中に、通
信経路を遮断するものがあると通信エラーをおこすとい
う問題があった。[Problem to be solved by the invention] In conventional optical space transmission LAN systems, not only is communication impossible when the line of sight between stations is poor, but also communication errors occur if something blocks the communication path during communication. There was a problem of causing
また、ワイヤレスＬＡＮ（無線）システムは、電磁波な
どの外来ノイズの影響をうけやすいこと、使用する電波
を強くすると、電波法の規制対象となったり、他の機器
に対するノイズ源となる可能性があること、逆に、微弱
電波では通信速度や容量を大きくできないこと、などの
問題があった。Additionally, wireless LAN (wireless) systems are easily affected by external noise such as electromagnetic waves, and if the radio waves used are strong, they may become subject to regulations under the Radio Law or may become a source of noise for other devices. Conversely, there were problems such as the inability to increase communication speed and capacity with weak radio waves.
なお、電波と光を同時に送受信するものとして。Assuming that radio waves and light are transmitted and received at the same time.
特開昭５０−１０５０３号公報記載の技術が知られてい
るが、これは固定局と移動局間の通信について記載しで
あるが、固定局間の通信については触れられていない、
また、固定局間を光ファイバで通信し。A technique described in Japanese Unexamined Patent Publication No. 10503/1983 is known, but this describes communication between a fixed station and a mobile station, but does not mention communication between fixed stations.
Additionally, optical fibers are used to communicate between fixed stations.
固定局と移動局間を電波で通信する方法として特開昭６
０−１９００４２号公報があるが、これは一部のみワイ
ヤレスで、また、固定局と移動局とは電波だけの通信で
あるから前述のような問題点がある。Unexamined Japanese Patent Publication No. 6 as a method of communicating by radio waves between fixed stations and mobile stations
No. 0-190042 exists, but this is only partially wireless, and the fixed station and mobile station communicate only by radio waves, so there are the problems mentioned above.
本発明は固定局間の通信も、固定局と移動局間の通信も
ワイヤレスとし、かつ高い信頼性の得られる通信方法を
提供することを目的とするものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a communication method that enables communication between fixed stations and between fixed stations and mobile stations to be wireless, and which provides high reliability.
「課題を解決するための手段」
本発明は光と電波を同時に用いる情報伝達方法において
、互いに見通しのよい場所に設置された複数の主局を階
梯構成してなる主局群と、この主局群の最低位主局に対
してスター構成された複数の端局とを具備し、前記主局
群内の各主局間は情報伝達手段として空間光伝搬にて行
ない、前記最低位主局と複数の主局との間は情報伝達手
段として微弱電波で行なうようにした通信方法である。"Means for Solving the Problems" The present invention relates to an information transmission method that uses light and radio waves at the same time. A plurality of terminal stations are provided in a star configuration with respect to the lowest master station of the group, and communication between each master station in the master station group is carried out by spatial optical propagation as a means of transmitting information. This is a communication method that uses weak radio waves as a means of transmitting information between multiple main stations.
「作用」
主局群内の主局同士は互いに見通しのよい場所に設置し
て指向性ビームによって交信する。また、最低位主局と
端局との間は、微弱電波で交信する。"Operation" The main stations in the main station group are installed in locations with good line of sight to each other and communicate using directional beams. Furthermore, communication is performed between the lowest-level master station and the terminal stations using weak radio waves.
「実施例」 以下、本発明の一実施例を図面に基づき説明する。"Example" Hereinafter, one embodiment of the present invention will be described based on the drawings.
（１ａ）は内部の全主局が所定地域内の互いに見通しの
良い場所に設置された主局群である。この主局群（１ａ
）は、最高位の１次主局（２）に複数の２次主局（３ａ
） （３ｂ）・・・（３ｎ）が配属され、これらの２次
主局（３ａ） （３ｂ）・・・（３ｎ）にそれぞれ複数
の最低位の３次主局（４ａ） （４ｂ）・・・（４ｎ）
、・・・が配属されて順次階梯構成されている。これら
１次主局（２）と２次主局（３ａ）（３ｂ） −（３ｎ
）間、２次主局（３ａ） （３ｂ） ・・・（３ｎ）と
３次主局（４ａ） （４ｂ）・・・（４ｎ）、・・・間
はそれぞれ指向性光ビーム（５）によって通信する。こ
の場合、１次主局（２）と２次主局（３ａ） （３ｂ）
・・・（３ｎ）間は光ビームにより相互に交信できるよ
うな送受信機能を有する。(1a) is a main station group in which all internal main stations are installed at locations with good visibility of each other within a predetermined area. This main station group (1a
), the highest primary master station (2) has multiple secondary master stations (3a
) (3b)...(3n) are assigned, and each of these secondary master stations (3a) (3b)...(3n) is assigned a plurality of lowest tertiary master stations (4a) (4b), respectively. ...(4n)
, . . . are assigned, and the ladder is constructed in order. These primary main stations (2) and secondary main stations (3a) (3b) - (3n
), the directional light beams (5) between the secondary main stations (3a) (3b) ... (3n) and the tertiary main stations (4a) (4b) ... (4n), ... communicate by. In this case, the primary main station (2) and the secondary main station (3a) (3b)
. . . (3n) has a transmitting and receiving function that allows mutual communication using light beams.
また、３次主局（４ａ） （４ｂ）・・・（４ｎ） 、
・・・は光ビーム（５）の受信機能のみを有する。Also, the tertiary main station (4a) (4b)...(4n),
... has only the function of receiving the light beam (5).
前記３次主局（４ａ） （４ｂ）・・・（４ｎ）、・・
・にはそれぞれにスター構成された複数の端局（６ａ）
（６ｂ）・・・（６ｎ）、・・・に、微弱電波（７）
にて情報を伝達するための送信アンテナを具備している
。The tertiary main station (4a) (4b)...(4n),...
・There are multiple terminal stations (6a) each configured as a star.
(6b)...(6n),...weak radio waves (7)
It is equipped with a transmitting antenna for transmitting information.
前記１次主局（２）には、ゲートウェイ（８）を介して
幹線（９）に結合され、また、サテライト（１０）を介
して他地域の主局群（１ｂ）・・・（１ｎ）とも交信可
能になっている。The primary main station (2) is connected to a trunk line (9) via a gateway (8), and is also connected to main station groups (1b)...(1n) in other regions via satellites (10). It is now possible to communicate with both.
以上のような構成において、主局群（１ａ）内の１次主
局（２）、 ２次主局（３ａ） （３ｂ） −（３ｎ）
、３次主局（４ａ） （４ｂ） ・・・（４ｎ）、・・
・間は、光ビーム（５）によって通信し、３次主局（４
ａ） （４ｂ） −（４ｎ）、・・・と端局（６ａ）（
６ｂ）・・・（６ｎ）、・・・間は微弱電波（７）で通
信する。In the above configuration, the primary master station (2), the secondary master stations (3a) (3b) - (3n) in the master station group (1a)
, 3rd main station (4a) (4b) ... (4n), ...
・Communicates with a light beam (5) between the tertiary main station (4
a) (4b) - (4n), ... and the terminal station (6a) (
6b)...(6n), . . . communicate using weak radio waves (7).
このとき、いずれの通信媒体においても、スペクトル拡
散方式を用いる。この方式を用いることによって、光ビ
ーム（５）では、多チヤンネル時の波長選択が任意にで
きない現状のレーザダイオードなどを使用する場合に同
一波長のものを用いても相互に干渉混信を起しにくく、
また、電波（７）では電波のもつ弱点の耐電磁ノイズ性
、秘話性を補うことができる。At this time, a spread spectrum method is used in any communication medium. By using this method, optical beams (5) are less likely to cause mutual interference even when using the same wavelength when using current laser diodes, which cannot arbitrarily select wavelengths when using multiple channels. ,
Furthermore, radio waves (7) can compensate for the weak points of radio waves, such as electromagnetic noise resistance and confidentiality.
なお、１次、２次、３次主局内に交換機能をもたせ、か
つ主局、端局にそれぞれ送信機能をもたせれば、主局群
、端局からなるネットワークを構成できる。もちろん、
この場合の通信手段として光と電波を併用する。Note that if the primary, secondary, and tertiary master stations are provided with switching functions, and the master stations and terminal stations are each provided with transmission functions, a network consisting of a group of master stations and terminal stations can be constructed. of course,
In this case, both light and radio waves are used as communication means.
「発明の効果」
（１）主局を互いに見通しのよい場所に設置し、指向性
の良い光ビームを用いることにより遠くても高速で確実
に交信を行なわせ、かつ出力増大の規制もない。"Effects of the Invention" (1) By installing the main stations in a place where they can see each other and using a light beam with good directionality, communication can be carried out reliably at high speed even at a distance, and there is no restriction on increase in output.
（２）空間伝搬方式のため、光ファイバのような設置の
困難さがなく、移動の自由度が高い。(2) Since it is a spatial propagation method, it is not difficult to install unlike optical fibers and has a high degree of freedom of movement.
（３）スペクトラム拡散方式を採用することにより、レ
ーザダイオードのような波長選択度の厳しい発光素子を
自由に利用できる。(3) By adopting the spread spectrum method, light emitting elements with strict wavelength selectivity such as laser diodes can be used freely.
（４）最低位主局と端局間は微弱電波を用いているため
、他に電波障害を与えることがなく、かつ遮蔽物があっ
ても受信ができ、移動体に搭載できる。(4) Since weak radio waves are used between the lowest level master station and the terminal station, there is no interference with other radio waves, reception is possible even if there are obstacles, and it can be mounted on a mobile object.
（５）スペクトラム拡散方式を用いることにより電波の
弱点である耐電磁ノイズが増し、同時に秘話性も有する
。(5) By using the spread spectrum method, resistance to electromagnetic noise, which is a weak point of radio waves, is increased, and at the same time, communication is kept confidential.
図は本発明による光と電波を併用した通信方法を行うた
めのブロック図である。
（１）・・・主局群、（２）・・・１次主局、（３ａ）
〜（３ｎ）・・・２次主局、（４ａ）〜（４ｎ）・・・
３次主局、（５）・・・光ビーム、（６ａ）〜（６ｎ）
・・・端局、（７）・・微弱電波、（８）・・・ゲート
手続補正書（白側
平成０１年０６月０７日The figure is a block diagram for carrying out a communication method using both light and radio waves according to the present invention. (1)...Main station group, (2)...Primary master station, (3a)
~(3n)...Secondary main station, (4a)~(4n)...
Tertiary main station, (5)...Light beam, (6a) to (6n)
... terminal station, (7) ... weak radio waves, (8) ... gate procedure amendment (white side June 7, 1999)
Claims (4)
互いに見通しのよい場所に設置された複数の主局を階梯
構成してなる主局群と、この主局群の最低位主局に対し
てスター構成された複数の端局とを具備し、前記主局群
内の各主局間は情報伝達手段として空間光伝搬にて行な
い、前記最低位主局と複数の主局との間は情報伝達手段
として微弱電波で行なうようにしたことを特徴とする光
と電波を併用した通信方法。(1) In an information transmission method that uses light and radio waves simultaneously,
The main station group includes a plurality of main stations arranged in a hierarchical structure, and a plurality of terminal stations are arranged in a star configuration with respect to the lowest master station of the main station group, and Information is transmitted between each master station in the master station group by spatial light propagation as a means of transmitting information, and information is transmitted between the lowest master station and a plurality of master stations by weak radio waves as a means of transmitting information. A communication method that uses both light and radio waves.
行なうようにした請求項（１）記載の光と電波を併用し
た通信方法。(2) The communication method using both light and radio waves according to claim (1), wherein spatial light propagation and weak radio waves are performed using a spread spectrum method.
からの情報を伝達するようにした請求項（１）または（
２）記載の光と電波を併用した通信方法。(3) Claim (1) or (3) wherein the highest master station in the master station group transmits information from the main line via a gateway.
2) Communication method using both light and radio waves as described.
の主局群と交信するようにした請求項（１）または（２
）記載の光と電波を併用した通信方法。(4) Claim (1) or (2) wherein the highest level master station in the master station group communicates with the master station groups in other regions via satellites.
) A communication method that uses both light and radio waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63316658A JPH02162857A (en) | 1988-12-15 | 1988-12-15 | Communication method using light and radio wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63316658A JPH02162857A (en) | 1988-12-15 | 1988-12-15 | Communication method using light and radio wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02162857A true JPH02162857A (en) | 1990-06-22 |
Family
ID=18079468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63316658A Pending JPH02162857A (en) | 1988-12-15 | 1988-12-15 | Communication method using light and radio wave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02162857A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993012596A1 (en) * | 1991-12-16 | 1993-06-24 | Motorola, Inc. | Optical distribution system |
| JP2008538473A (en) * | 2005-04-11 | 2008-10-23 | ラストマイル・コミュニケーションズ・リミテッド | Communication network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526798A (en) * | 1978-06-02 | 1980-02-26 | Texas Instruments Inc | Centralized communication network |
| JPS6242635A (en) * | 1985-04-02 | 1987-02-24 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Infrared data communication method and apparatus |
| JPS6360643A (en) * | 1986-08-25 | 1988-03-16 | アメリカン テレフオン アンド テレグラフ カムパニ− | Local area network |
| JPS63114333A (en) * | 1986-10-31 | 1988-05-19 | Nec Home Electronics Ltd | Radio bus system |
-
1988
- 1988-12-15 JP JP63316658A patent/JPH02162857A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526798A (en) * | 1978-06-02 | 1980-02-26 | Texas Instruments Inc | Centralized communication network |
| JPS6242635A (en) * | 1985-04-02 | 1987-02-24 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Infrared data communication method and apparatus |
| JPS6360643A (en) * | 1986-08-25 | 1988-03-16 | アメリカン テレフオン アンド テレグラフ カムパニ− | Local area network |
| JPS63114333A (en) * | 1986-10-31 | 1988-05-19 | Nec Home Electronics Ltd | Radio bus system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993012596A1 (en) * | 1991-12-16 | 1993-06-24 | Motorola, Inc. | Optical distribution system |
| GB2268653A (en) * | 1991-12-16 | 1994-01-12 | Motorola Inc | Optical distribution system |
| US5301056A (en) * | 1991-12-16 | 1994-04-05 | Motorola, Inc. | Optical distribution system |
| GB2268653B (en) * | 1991-12-16 | 1995-08-30 | Motorola Inc | Optical distribution system |
| JP2008538473A (en) * | 2005-04-11 | 2008-10-23 | ラストマイル・コミュニケーションズ・リミテッド | Communication network |
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