JPS6212704B2 - - Google Patents
Info
- Publication number
- JPS6212704B2 JPS6212704B2 JP56214463A JP21446381A JPS6212704B2 JP S6212704 B2 JPS6212704 B2 JP S6212704B2 JP 56214463 A JP56214463 A JP 56214463A JP 21446381 A JP21446381 A JP 21446381A JP S6212704 B2 JPS6212704 B2 JP S6212704B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- repeater
- optical transmission
- closed space
- transmission system
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Optical Communication System (AREA)
Description
【発明の詳細な説明】
本発明は、光の空中伝搬を利用した光伝送方式
に関するもので、その目的とするところは、四方
が壁、天井等で完全に覆われている閉空間から別
の閉空間に通信ができるようにすることにあり、
他の目的とするところは、複数の閉空間の間の光
伝送を効率よく行なうことにあり、別の目的とす
るところは、複数の閉空間の中のいずれの場所と
も光伝送ができるようにすることにあり、更に他
の目的とするところは、複数の閉空間の間の光伝
送を一層効率よく行なうことにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical transmission system that utilizes the aerial propagation of light, and its purpose is to move from a closed space completely covered on all sides by walls, ceilings, etc. The purpose is to enable communication in closed spaces.
Another purpose is to efficiently transmit light between multiple closed spaces, and another purpose is to enable optical transmission to any location within multiple closed spaces. Another object of the present invention is to more efficiently transmit light between a plurality of closed spaces.
光の空中伝搬を利用した光伝送方式は、天井、
壁、床等の光の反射によつて相手方の受信装置に
伝搬する。しかるに、四方が天井、壁等で完全に
覆われている閉空間から別の閉空間に通信を行な
う場合、伝達媒体である光が１つの閉空間から他
の閉空間へ伝搬しないため、通信が行なえないと
いう欠点を有する。従来、この解決手段として光
フアイバーが使用されていた。しかるに、光フア
イバーを使用したものにあつては、送受信器の位
置が固定され、常に携帯できないという欠点を有
していた。 Optical transmission methods that utilize aerial propagation of light are
The light propagates to the receiving device of the other party by reflection of light from walls, floors, etc. However, when communicating from a closed space completely covered on all sides by ceilings, walls, etc. to another closed space, the communication is difficult because light, which is the transmission medium, does not propagate from one closed space to another. The disadvantage is that it cannot be carried out. Traditionally, optical fibers have been used as a solution to this problem. However, devices using optical fibers have the disadvantage that the transmitter/receiver is fixed in position and cannot be carried around at all times.
本発明はかかる点に鑑みてなされたもので、以
下実施例により詳細に説明する。 The present invention has been made in view of this point, and will be explained in detail below with reference to Examples.
第１図において、１，１は受光素子、２，２は
発光素子で、これらを増巾発光駆動回路３，３に
接続して中継器４を構成する。この中継器４を第
２図のように円筒状のケース５内に収納し、ケー
ス５の両端にレンズ６，６を設け、受光素子１，
１および発光素子２，２をレンズ６，６の焦点の
位置に設置する。７，７は支持台、８，８は配線
である。ケース５を天井、壁等に設置し、一つの
閉空間より別の閉空間に光伝送により通信を行な
う。 In FIG. 1, reference numerals 1 and 1 are light receiving elements, and 2 and 2 are light emitting elements, which are connected to amplified light emission drive circuits 3 and 3 to constitute a repeater 4. This repeater 4 is housed in a cylindrical case 5 as shown in FIG.
1 and light emitting elements 2, 2 are installed at the focal points of lenses 6, 6. 7 and 7 are support stands, and 8 and 8 are wiring. The case 5 is installed on the ceiling, wall, etc., and communication is performed from one closed space to another closed space by optical transmission.
光伝送により伝達する信号は、マーカー信号と
情報信号とで形成し、マーカー信号で情報信号を
はさむようにし、情報信号はアドレス信号、命令
信号等より成る制御信号又は音声信号で、一つの
閉空間より別の閉空間に情報として伝送するもの
で、PCM変調し光出力に変換して空中伝搬によ
り伝送し、待期回路を設けておき、マーカー信号
を検知して送受信回路の電源を入れ、情報信号を
復調する。情報信号は数値データとしてCPUに
より処理する。以上のようにして一つの閉空間よ
り発射した赤外線等の光を受光素子１で受光し、
増巾発光駆動回路３を介して発光素子２より別の
閉空間に光を発射し、別の閉空間に光伝送により
通信できる。 The signal transmitted by optical transmission is formed of a marker signal and an information signal, the information signal is sandwiched between the marker signals, and the information signal is a control signal or audio signal consisting of an address signal, command signal, etc., and is transmitted in a closed space. It is used to transmit information to another closed space by PCM modulating it, converting it to optical output, and transmitting it through air propagation.A standby circuit is installed, the marker signal is detected, the transmitter/receiver circuit is turned on, and the information is transmitted. Demodulate the signal. The information signal is processed by the CPU as numerical data. As described above, light such as infrared rays emitted from one closed space is received by the light receiving element 1,
Light can be emitted from the light emitting element 2 to another closed space via the amplified light emission drive circuit 3, and communication can be made to the other closed space by optical transmission.
第３図は本発明の他の実施例で、集光用に放物
面鏡９，９を設けたもので、放物面鏡９，９の曲
率を受光素子１，１、発光素子２，２の設置個所
に焦点をむすぶようにしたもので、他は第２図の
ものと同じである。第４図の実施例は、自動追従
装置１０，１０を設けたもので、壁１１に連結し
た天井１２に設けておき、自動追従装置１０，１
０は赤外線等の発光している方向へ自動的に制御
され、受光素子１，１、発光素子２，２がその方
向に向くように制御する。したがつて、閉空間の
中に設置される送受信器の位置が限定されること
がなく、どの場所からも光伝送ができる。第５図
は受光素子１および発光素子２の構成図で、同一
のチツプ１３上に設けたもので、同一のチツプ１
３上に設けることにより、レンズ６又は放物面鏡
９の焦点に受光素子１および発光素子２を設置で
き、光伝送を効率よく行なうことができる。尚、
１４は遮光用マスクである。 FIG. 3 shows another embodiment of the present invention, in which parabolic mirrors 9, 9 are provided for condensing light, and the curvature of the parabolic mirrors 9, 9 is adjusted to The focal point is connected to the installation location in Figure 2, and the rest is the same as the one in Figure 2. In the embodiment shown in FIG. 4, automatic tracking devices 10, 10 are installed on a ceiling 12 connected to a wall 11.
0 is automatically controlled in the direction in which infrared light or the like is being emitted, and the light receiving elements 1, 1 and the light emitting elements 2, 2 are controlled to face in that direction. Therefore, the position of the transmitter/receiver installed in a closed space is not limited, and optical transmission can be performed from any location. FIG. 5 is a block diagram of the light receiving element 1 and the light emitting element 2, which are provided on the same chip 13.
By providing the light-receiving element 1 and the light-emitting element 2 on the focal point of the lens 6 or the parabolic mirror 9, light transmission can be performed efficiently. still,
14 is a light shielding mask.
叙上のように本発明は、受光素子と発光素子と
増巾発光駆動回路とにより中継器を構成し、前記
中継器により複数の閉空間の間を光伝送する如く
したから、四方が壁、天井等で完全に覆われてい
る閉空間から別の閉空間に通信でき、例えば、風
呂と居間、１階と２階との間で遠隔通信ができ、
又、中継器に集光装置を設けたから、複数の閉空
間の間の光伝送を効率よく行なうことができ、更
に、中継器に自動追従装置を設けたから、複数の
閉空間の中のいずれの場所とも光伝送ができ、更
に又、受光素子と発光素子とを同一チツプ上に設
けたから、複数の閉空間の間の光伝送を一層効率
よくできるという効果を奏するものである。 As described above, in the present invention, a repeater is configured by a light receiving element, a light emitting element, and an amplified light emitting drive circuit, and the repeater transmits light between a plurality of closed spaces. It is possible to communicate from a closed space completely covered by a ceiling etc. to another closed space, for example, it is possible to perform remote communication between the bath and living room, the first floor and the second floor,
In addition, since the repeater is equipped with a condensing device, it is possible to efficiently transmit light between multiple closed spaces.Furthermore, since the repeater is equipped with an automatic tracking device, it is possible to efficiently transmit light between multiple closed spaces. Furthermore, since the light-receiving element and the light-emitting element are provided on the same chip, light transmission between a plurality of closed spaces can be made more efficient.
第１図は本発明に使用する中継器の一実施例の
構成図、第２図は本発明の一実施例の縦断面図、
第３図は同上の他の実施例の縦断面図、第４図は
同上の別の実施例の一部切欠せる縦断面図、第５
図は同上の受光素子、発光素子の構成図である。
１……受光素子、２……発光素子、３……増巾
発光駆動回路、４……中継器、６……レンズ、９
……放物面鏡、１０……自動追従装置、１３……
チツプ。
FIG. 1 is a configuration diagram of an embodiment of a repeater used in the present invention, FIG. 2 is a longitudinal sectional view of an embodiment of the present invention,
FIG. 3 is a vertical sectional view of another embodiment same as the above, FIG. 4 is a longitudinal sectional view partially cut away of another embodiment same as the above, and FIG.
The figure is a configuration diagram of a light receiving element and a light emitting element same as above. DESCRIPTION OF SYMBOLS 1... Light receiving element, 2... Light emitting element, 3... Width light emission drive circuit, 4... Relay, 6... Lens, 9
... Parabolic mirror, 10 ... Automatic tracking device, 13 ...
Chip.
Claims (1)
より中継器を構成し、前記中継器により複数の閉
空間の間を光伝送する如くして成る光伝送方式。 ２ 中継器に集光装置を設けて成ることを特徴と
する特許請求の範囲第１項記載の光伝送方式。 ３ 中継器に自動追従装置を設けて成ることを特
徴とする特許請求の範囲第１項記載の光伝送方
式。 ４ 受光素子と発光素子とを同一チツプ上に設け
て成ることを特徴とする特許請求の範囲第１項記
載の光伝送方式。[Scope of Claims] 1. An optical transmission system in which a light receiving element, a light emitting element, and an amplified light emission driving circuit constitute a repeater, and the repeater transmits light between a plurality of closed spaces. 2. The optical transmission system according to claim 1, characterized in that a repeater is provided with a light condensing device. 3. The optical transmission system according to claim 1, characterized in that the repeater is provided with an automatic tracking device. 4. The optical transmission system according to claim 1, characterized in that a light receiving element and a light emitting element are provided on the same chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56214463A JPS58125923A (en) | 1981-12-29 | 1981-12-29 | Light transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56214463A JPS58125923A (en) | 1981-12-29 | 1981-12-29 | Light transmitting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58125923A JPS58125923A (en) | 1983-07-27 |
| JPS6212704B2 true JPS6212704B2 (en) | 1987-03-20 |
Family
ID=16656144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56214463A Granted JPS58125923A (en) | 1981-12-29 | 1981-12-29 | Light transmitting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125923A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59140735A (en) * | 1983-01-31 | 1984-08-13 | Takashi Mori | Repeating device of optical communication system |
| JPS59132260U (en) * | 1983-02-21 | 1984-09-05 | 日本マランツ株式会社 | remote control system |
| JPS59132263U (en) * | 1983-02-21 | 1984-09-05 | 日本マランツ株式会社 | remote control system |
| JPS607235A (en) * | 1983-06-24 | 1985-01-16 | Sharp Corp | Adaptor for optical communication equipment |
| US4727600A (en) * | 1985-02-15 | 1988-02-23 | Emik Avakian | Infrared data communication system |
| US4878254A (en) * | 1986-12-30 | 1989-10-31 | David Richardson | Compact signal enhancer |
| JPH01174031A (en) * | 1987-12-28 | 1989-07-10 | Kokusan Kinzoku Kogyo Co Ltd | Communication system for customer station equipment |
| JPH04200033A (en) * | 1990-11-29 | 1992-07-21 | Smk Corp | Underwater wireless communication system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474303A (en) * | 1977-11-25 | 1979-06-14 | Matsushita Electric Works Ltd | Photo transfer wireless interphone |
| JPS54177811U (en) * | 1978-06-02 | 1979-12-15 | ||
| JPS5567253A (en) * | 1978-11-15 | 1980-05-21 | Hitachi Ltd | Signal transmission unit |
| DE3000958C2 (en) * | 1980-01-12 | 1984-04-26 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Home emergency call system with remote release |
-
1981
- 1981-12-29 JP JP56214463A patent/JPS58125923A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58125923A (en) | 1983-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4977618A (en) | Infrared data communications | |
| US7751716B2 (en) | Open-path/free-space optical communication system and method using reflected or backscattered light | |
| JPS6212704B2 (en) | ||
| JPS59235A (en) | Communicating system | |
| KR19980035246A (en) | Short-range data communication device using diffusion array infrared antenna | |
| JPS6358497B2 (en) | ||
| JPH1117615A (en) | Communication device | |
| JPH05206946A (en) | Optical communication system | |
| JPS59122141A (en) | Infrared ray communicating system | |
| JPS60117833A (en) | optical space repeater | |
| JP2943449B2 (en) | Laser radar device | |
| JPH0119481Y2 (en) | ||
| JPH0340616A (en) | Optical space transmission equipment | |
| JP2668793B2 (en) | Mobile optical communication control system | |
| JPS59139730A (en) | Optical data bus transmission system | |
| JPS6123427A (en) | Information transmitter | |
| JPH10336762A (en) | Information transmission system | |
| JPH0837496A (en) | Optical space transmission system | |
| JPS6072340A (en) | Repeating installation of optical spatial propagation | |
| JP2001320332A (en) | Infrared repeater | |
| JPH1098434A (en) | Optical radio communication system | |
| JPH02235451A (en) | optical transmitter | |
| JPS63175539A (en) | Optical communication method | |
| JPH0340613A (en) | Optical space transmission device | |
| JPH08275276A (en) | Optical space transmission controller |