JPH01190146A - Transmission system - Google Patents
Transmission systemInfo
- Publication number
- JPH01190146A JPH01190146A JP63015042A JP1504288A JPH01190146A JP H01190146 A JPH01190146 A JP H01190146A JP 63015042 A JP63015042 A JP 63015042A JP 1504288 A JP1504288 A JP 1504288A JP H01190146 A JPH01190146 A JP H01190146A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- transmission system
- transmission
- wired
- space
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 235
- 230000003287 optical effect Effects 0.000 claims abstract description 120
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 108091036429 KCNQ1OT1 Proteins 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Small-Scale Networks (AREA)
- Selective Calling Equipment (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］
本発明はパーソナルフンピユータ等を利用してＬＡＮを
構成する伝送システムに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transmission system that configures a LAN using personal computer computers and the like.
［従来の技術１
従来、パーソナルコンピュータを端末機として使用した
ＬＡＮでは有線伝送系を用いるため伝送ラインの配線を
近傍の端末機間においては床配線や机上配線で行い、少
し離れたパーソナルコンピュータ間や別のフロアへの配
線は天井への立ち上げ、立ち下げを行って配線する天井
配線等により実現している。[Prior art 1] Traditionally, LANs that use personal computers as terminals use wired transmission systems, so the transmission lines are wired between nearby terminals using floor wiring or desktop wiring, and between personal computers that are a little apart or Wiring to another floor is accomplished by using ceiling wiring, etc., which involves wiring up and down to the ceiling.
［発明が解決しようとする課題〕
上述のような従来例では非常に配線工事への手間がかか
る上に美観的にも問題があった。[Problems to be Solved by the Invention] In the conventional example as described above, wiring work is extremely time-consuming and aesthetically problematic.
本発明は上述の問題点に鑑みて為されたもので、地上側
の床或いは机上と天井との間の立ち上げ配線、立ち下げ
配線を無くして配線工事の手間を省き、且つ美観を損な
わない伝送システムを提供することを目的とし、更には
１台のサテライト用空間伝送ユニットと複数のターミナ
ル用空間伝送ユニットとの間でデータ伝送が行え、且つ
端末機の増設に討して容易に対応できる伝送システムを
提供することを目的とし、また更に光送受イε方向を自
在に設定できる伝送システムを提供することを目的とす
る。The present invention has been made in view of the above-mentioned problems, and eliminates the need for rising and falling wiring between the floor or desk top and ceiling on the ground side, thereby saving the labor of wiring work and not impairing the aesthetic appearance. The purpose is to provide a transmission system that can perform data transmission between one satellite space transmission unit and multiple terminal space transmission units, and can easily accommodate the addition of terminals. It is an object of the present invention to provide a transmission system, and a further object of the present invention is to provide a transmission system in which the ε direction of optical transmission and reception can be freely set.
［課題を解決しようとする課題］
本発明は天井側に配設した有線伝送系の伝送ラインから
の伝送信号を光パルス信号に変換して送出する光送信部
と、光’ｊ！Ｗ！Ｊ伝送系からの元パルス信号を受信し
て有線伝送系の伝送信号に復調して有線伝送系に送出す
る光受信部と、これら光送信部及び光受信部と有線伝送
系の伝送ラインとの間を電気的に接続するインターフェ
ース手段とからなるサテライト用空間伝送ユニットを天
井側に設けてあり、地上側に配設した有線伝送系の伝送
ラインからの伝送信号を光パルス信号に変換して送出す
る光送信部と、光空間伝送系からの光パルス信号を受信
して有線伝送系の伝送信号に復調して有線伝送系に送出
する先受Ｍ部と、これら光送信部及び光受信部と有線伝
送系の伝送フィンとの間を電気的に接続するインターフ
ェース手段とからなるターミナル用空間伝送ユニットを
地上側に設はサテライト用空間伝送ユニットとターミナ
ル用空間伝送ユニットとを１討１で対応させである。[Problems to be Solved] The present invention provides an optical transmitter that converts a transmission signal from a transmission line of a wired transmission system installed on the ceiling side into an optical pulse signal and sends it out, and an optical 'j! W! An optical receiving section that receives the original pulse signal from the J transmission system, demodulates it into a transmission signal of the wired transmission system, and sends it to the wired transmission system, and a connection between these optical transmitting section and optical receiving section and the transmission line of the wired transmission system. A space transmission unit for satellites is installed on the ceiling and consists of an interface means for electrically connecting between an optical transmitting section that receives an optical pulse signal from an optical space transmission system, demodulates it into a transmission signal of a wired transmission system, and sends it to the wired transmission system; A terminal space transmission unit consisting of an interface means for electrically connecting with the transmission fin of the wired transmission system is installed on the ground side, and the satellite space transmission unit and the terminal space transmission unit are matched in one unit. It is.
サテライト用空間伝送ユニットには上記光送信部と、光
受信部と、インターフェース手段とを持つ回路ユニット
部を複数設け、各回路ユニット部サテライト用空間伝送
ユニット内の上記各回路ユニット部とターミナル用空間
伝送ユニットとを１討１で対応させてもよい。The satellite spatial transmission unit is provided with a plurality of circuit unit sections each having the above-mentioned optical transmitting section, optical receiving section, and interface means, and each circuit unit section and the above-mentioned circuit unit section in the satellite spatial transmission unit and a terminal space are provided. It is also possible to have one correspondence with one transmission unit.
又各回路ユニット部の先受Ｍ部及び光送信部の光送受信
方向を設定するホーン状の光送受信方向設定治具をユニ
ット本体に回動自在に設けてもよい。Further, a horn-shaped optical transmission/reception direction setting jig for setting the optical transmission/reception direction of the pre-receiving M part and the optical transmitting part of each circuit unit part may be rotatably provided in the unit body.
［作用］
而して端末機と端末機との間で半二重による双方向伝送
を行う場合には、一方の端末機からの送信信号は地上側
の伝送ラインによりターミナル用空間伝送ユニットに伝
えられて更にこのターミナル用空間伝送ユニットにより
光パルス信号に変換され、また更に光空間伝送によって
対応する天井側のサテライト用空間伝送ユニットへ伝え
られ、この空間伝送ユニットにより更に天井側の有線伝
送系の信号に変換されて天井に配設された伝送ラインを
通して別の空間伝送ユニットに送られ、この空間伝送ユ
ニットにより光パルス信号に再び変換されて、対応する
地上側のターミナル用空間伝送ユニットへ伝えられ、再
度地上側の有線伝送系の信号に変換されて対応する端末
機に取り込まれる。この端末機から他方の端末機への送
信は上述の経路とは逆の経路で行なわれる。[Operation] When half-duplex bidirectional transmission is performed between terminals, the transmission signal from one terminal is transmitted to the terminal space transmission unit via the transmission line on the ground side. This signal is further converted into an optical pulse signal by this terminal space transmission unit, and is further transmitted to the corresponding satellite space transmission unit on the ceiling side by optical space transmission. It is converted into a signal and sent to another spatial transmission unit through a transmission line installed on the ceiling, and this spatial transmission unit converts it back into an optical pulse signal and transmits it to the corresponding terminal spatial transmission unit on the ground side. , it is converted again to a signal for the wired transmission system on the ground side, and then taken in by the corresponding terminal. Transmission from this terminal to the other terminal is performed via a route opposite to the above-mentioned route.
そして回路ユニット部をサテライト用空間伝送ユニット
に設けている場合には地上側のターミナル用空間伝送ユ
ニットとの対応は回路ユニット部の光送信部、光受信部
が行い、また光送受信方向の設定はホーン状の光送受信
方向設定治具を用いで行うと良い。When the circuit unit is installed in the satellite space transmission unit, the optical transmitter and optical receiver of the circuit unit handle the correspondence with the terminal space transmission unit on the ground side, and the optical transmission and reception directions are set. It is best to use a horn-shaped optical transmission/reception direction setting jig.
［実施例］ 以下本発明を実施例により説明する。[Example] The present invention will be explained below with reference to Examples.
第１図は実施例の全体的な構成を示し、天井Ｂ側には伝
送ラインＩ０を配設しである。地上Ａ側では各伝送ライ
ン１．．（１２・・・にバーンナルコンピュータのよう
な端末機２，１・・・を接続しである。そして伝送ライ
ン１０には複数のサテライト用空間伝送ユニット１゜１
・・・を接続し、また各伝送ライン１２・・・には上記
サテライト用空間伝送ユニット１゜１・・・に対応する
ターミナル用空間伝送ユニット１１、・・・を接続しで
ある。FIG. 1 shows the overall configuration of the embodiment, in which a transmission line I0 is arranged on the ceiling B side. On the ground A side, each transmission line 1. ．． (Terminals 2, 1, etc., such as burner computers, are connected to
. . . and each transmission line 12 . . . is connected to a terminal space transmission unit 11, .
第２図、第３図は本実施例の全体構成を更に模式化した
図面である。FIGS. 2 and 3 are drawings further schematically showing the overall configuration of this embodiment.
第４図はサテライト用又はターミナル用の空間伝送ユニ
ット１の回路構成を示しており、空間伝送ユニット１に
は光パルス信号にＮＺＲＩ信号のような伝送信号を変換
して送信させる光送信部３と、受信した光パルス信号を
伝送信号に復調する先受Ｍ部４とを備えるとともに、こ
れら光送信部３及び光受信部４と伝送ラインｌとの間の
電気的インターフェース手段として伝送ラインｌを介し
て伝送されてくるＮＺＲＩ信号からなる伝送信号を光送
信部３へ通過或いは、遮断させるための受信デートを構
成する例えばＲ８−４２２用のラインレシーバ５と、受
信復調した伝送信号を伝送ラインｌへ通過、或いは連断
させる送信デートを構成する例えばＲ８−４２２用のラ
イントライバ６と、これらラインレシーバ５と、ライン
トライバ６をオンオフ制御するドライバ／レシーバ切り
替え回路７と、切り替えのために送信信号の検出と、受
信信号の検出とを夫々行う送信信号検出回路８と、受信
信号検出回路９とを備えている。尚端末機２．・・・に
は伝送信号を取り込むラインレシーバ（図示せず）と、
伝送信号を送出するライントライバ（図示せず）と、信
号処理を行う信号処理回路（図示せず）とを備えている
。Figure 4 shows the circuit configuration of the space transmission unit 1 for satellites or terminals. , and a pre-receiving M section 4 that demodulates the received optical pulse signal into a transmission signal. For example, a line receiver 5 for R8-422 constitutes a reception date for passing or blocking a transmission signal consisting of an NZRI signal transmitted to the optical transmitter 3, and a transmission signal received and demodulated is sent to the transmission line l. For example, a line driver 6 for R8-422 that constitutes a transmission date to pass or connect, a driver/receiver switching circuit 7 that controls on/off the line driver 6, and a transmission date for switching. It includes a transmitted signal detection circuit 8 and a received signal detection circuit 9 that detect signals and detect received signals, respectively. Terminal 2. ... includes a line receiver (not shown) that receives the transmission signal, and
It includes a line driver (not shown) that sends out transmission signals and a signal processing circuit (not shown) that performs signal processing.
而して第３図に示すように例えば端末機２７．から伝送
信号が送信されるとその送信信号は地上側の伝送ライン
１１によりターミナル用空間伝送ユニット１，１に伝え
られるとともに伝送ライン１１に接続しである端末機２
＋２，２＋３へ伝えられる。ターミナル用空間伝送ユニ
ット１□では送信信号が送信信号検出回路８で検出され
、ドライバ／レシーバ切り替え回路７はこの検出に基づ
いて送信信号を取り込み光送信部３により光パルス信号
に変換し、光空間伝送によって対応する天井側のサテラ
イト用空間伝送ユニット１゜１へ送信する。As shown in FIG. 3, for example, the terminal 27. When a transmission signal is transmitted from the terminal, the transmission signal is transmitted to the terminal space transmission unit 1, 1 through the transmission line 11 on the ground side, and is also transmitted to the terminal 2 which is connected to the transmission line 11.
It is transmitted to +2, 2+3. In the terminal space transmission unit 1□, the transmission signal is detected by the transmission signal detection circuit 8, and the driver/receiver switching circuit 7 takes in the transmission signal based on this detection, converts it into an optical pulse signal by the optical transmitter 3, and transmits it to the optical space. The data is transmitted to the corresponding satellite spatial transmission unit 1°1 on the ceiling side.
ここでデータ伝送は半二重で行なわれるので、光受信部
４で光パルス信号を受信した空間伝送ユニット１゜１で
は受信信号が光受信部４で復調され、この復調された信
号は受信信号検出回路９の検出出力によるドライバ／レ
シーバ切り替え回路７の働きでラインレシーバ６へ送り
込まれ、伝送ライン１０上に送出される。天井Ｂに配設
された伝送ラインｒ０を通して送られてきた伝送信号を
取り込んだ別のターミナル用空間伝送ユニット１゜２，
１゜。Since the data transmission is performed in half-duplex mode, the received signal is demodulated by the optical receiver 4 in the spatial transmission unit 1゜1 which receives the optical pulse signal at the optical receiver 4, and this demodulated signal is converted into the received signal. The detection output of the detection circuit 9 is used by the driver/receiver switching circuit 7 to send the signal to the line receiver 6 and onto the transmission line 10 . Another terminal space transmission unit 1゜2, which takes in the transmission signal sent through the transmission line r0 installed on the ceiling B.
1°.
は空間伝送ユニット１１１と同様に動作して光パルス信
号に伝送信号を再Ｖ変換して、対応する地上Ａ側のター
ミナル用空間伝送ユニット１□ｌｊｌ：１１へ伝える。operates in the same manner as the space transmission unit 111, re-converts the transmission signal into an optical pulse signal, and transmits it to the corresponding terminal space transmission unit 1□ljl:11 on the ground A side.
各ターミナル用空間伝送ユニツ）１２．。Spatial transmission unit for each terminal)12. .
１．１はサテライト用空間伝送ユニット１゜１と同様に
働いて、再度有線伝送系の伝送信号に変換し、各伝送ラ
インＩ１２・・・を通じで各端末機２□１・・・に送る
のである。つまり送信されたデータは全端末機に伝送さ
れることになる。1.1 works in the same way as the satellite spatial transmission unit 1゜1, converts it again into a transmission signal for the wired transmission system, and sends it to each terminal 2□1... through each transmission line I12... be. In other words, the transmitted data will be transmitted to all terminals.
ここでドライバ／レシーバ切り替え回路７の働きで送受
Ｍ信号の切り替えが行なわれるため、有線伝送系と光空
間伝送系とが混在していても正常にシステムが動作する
ことになる。Since the driver/receiver switching circuit 7 switches between the transmitted and received M signals, the system can operate normally even if the wired transmission system and the optical space transmission system coexist.
第５図は別の実施例を示しており、この実施例では工事
の手間、及びコストの面から先受Ｍ部４、光送信部３及
びインターフェース手段とからなる回路ユニット部１１
Ｌｔ １ ｂ、 １ ｃの３組をサテライト用空間伝送
ユニット１゜に設けて、複数のターミナル用空間伝送ユ
ニツ）１．、．１□１１１３＋に対応させたものである
。第６図（ａ）は３組の回路ユニット部１ ａｔ ｌ
ｂ、 １ ｃをユニット本体に収納配置した配置例を示
している。勿Ｗ！＃＆６図（ｂ）に示すように４組の回
路ユニット部１ ａ、 １ ｂ、 １ ｅｔ １ ｄヲ
ユニット本体に収納配置しても良く、回路ユニット部の
個数は実施例に特に限定されない。FIG. 5 shows another embodiment, in which a circuit unit section 11 consisting of a pre-receiving M section 4, an optical transmitting section 3, and an interface means is used in order to reduce construction time and cost.
Three sets of Lt 1 b and 1 c are provided in the satellite space transmission unit 1° to create a plurality of terminal space transmission units)1. ,． This corresponds to 1□1113+. FIG. 6(a) shows three sets of circuit units 1 at l.
An example of the arrangement in which the units b and 1c are housed in the unit body is shown. Of course! # & 6 As shown in FIG. 6(b), four sets of circuit units 1a, 1b, 1 et 1d may be housed and arranged in the unit body, and the number of circuit units is not particularly limited to the embodiment.
ここで回路ユニット部の収納部を各収納個数に対応して
予め準備しておけば、サテライト用空間伝送ユニット１
の回路ユニット部の収納個数の変更が即座に行え、ター
ミナルの増設時にも容易に対応することができる。Here, if the storage areas of the circuit unit section are prepared in advance according to the number of storage units, the satellite space transmission unit 1
The number of stored circuit units can be changed instantly, and it is easy to accommodate the addition of terminals.
また天井Ｂ側の有線伝送系の伝送ライン１０を省略すれ
ば１個のみでも各ターミナル用空間伝送ユニットに対す
る信号中継機としてできる。Furthermore, if the transmission line 10 of the wired transmission system on the ceiling B side is omitted, even one can serve as a signal repeater for each terminal space transmission unit.
第５図実施例ではサテライト用空間伝送ユニット１゜は
単純にユニット本体の下面を各回路ユニット部１１１．
１ ｂ、 １ ｃに合わせて分割しただけであるから送
受信方向の向きは固定されるため、向きの調整はターミ
ナル側で行うようにしであるがターミナル側からの光パ
ルス信号同士が重なりあってデータエラーの発生する恐
れがあるため、第７図に示す実施例では各回路ユニット
部１ａ、 ｌｂ、 ＩＣに対応してホーン状の光送
受信方向股定治其１０ａ、１０ｂ、１０ｃを回動自在に
空間伝送ユニット１゜のユニット本体に収設し、送受信
方向を自由に設定できるようにしである。In the embodiment shown in FIG. 5, the satellite space transmission unit 1° simply connects the bottom surface of the unit body to each circuit unit portion 111.
Since the direction of transmission and reception is fixed because it is only divided according to 1b and 1c, the direction should be adjusted on the terminal side, but the optical pulse signals from the terminal side overlap each other and the data is distorted. To prevent errors from occurring, in the embodiment shown in FIG. 7, horn-shaped optical transmitting/receiving direction fixing devices 10a, 10b, and 10c are made rotatable in correspondence with each circuit unit section 1a, lb, and IC. It is housed in the unit body of the spatial transmission unit 1°, and the transmission and reception directions can be freely set.
［発明の効果］
本発明は天井側に配設した有線伝送系の伝送ラインから
の伝送信号を光パルス信号に変換して送出する光送信部
と、光空間伝送系からの光パルス信号を受信して有線伝
送系の伝送信号に復調して有線伝送系に送出する光受信
部と、これら光送信部及び光受信部と有線伝送系の伝送
ラインとの間を電気的に接続するインターフェース手段
とからなるサテライト用空間伝送ユニットを天井側に設
け、地上側に配設した有線伝送系の伝送ラインからの伝
送信号を光パルス信号に変換して送出する光送信部と、
光空間伝送系からの光パルス信号を受信して有線伝送系
の伝送信号に復調して有線伝送系に送出する光受信部と
、これら光送信部属１光受信部と有線伝送系の伝送ライ
ンとの間を電気的に接続するインターフェース手段とか
らなるターミナル用空間伝送ユニットを地上側に設け、
サテライト用空間伝送ユニットとターミナル用空間伝送
ユニットとを１討１で対応させて半二重通信を行うよう
にさせであるから、従来のように地上側から天井へ伝送
ラインを立ち上がり配線したり、逆に立ち下がり配線し
たりする必要が無く、そのため配線工事の簡便化が図れ
、その上配線による美観上の問題も解決できるという効
果がある。[Effects of the Invention] The present invention includes an optical transmitter that converts a transmission signal from a transmission line of a wired transmission system installed on the ceiling side into an optical pulse signal and sends it out, and an optical transmitter that receives an optical pulse signal from an optical space transmission system. an optical receiver that demodulates the signal into a transmission signal of the wired transmission system and sends it to the wired transmission system; and an interface means that electrically connects the optical transmitter and the optical receiver to the transmission line of the wired transmission system. an optical transmitter that converts a transmission signal from a transmission line of a wired transmission system arranged on the ground side into an optical pulse signal and sends it out;
An optical receiver that receives an optical pulse signal from an optical space transmission system, demodulates it into a transmission signal for a wired transmission system, and sends it to the wired transmission system; A terminal space transmission unit consisting of an interface means for electrically connecting between the terminals is provided on the ground side,
Since the space transmission unit for the satellite and the space transmission unit for the terminal are made to correspond in one unit to perform half-duplex communication, it is not necessary to run the transmission line from the ground side to the ceiling as in the past. On the other hand, there is no need for falling wiring, which simplifies the wiring work and also solves aesthetic problems caused by the wiring.
更に天井側に配設した有線伝送系の伝送ラインからの伝
送信号を光パルス信号に変換して送出する光送信部と、
光空間伝送系からの光パルス信号を受信して有線伝送系
の伝送信号に復調して有線伝送系に送出する光受信部と
、これら光送信部及び光受信部と有線伝送系の伝送ライ
ンとの間を電気的に接続するインターフェース手段とか
らなる回路ユニット部を複数備えたサテライト用空間伝
送ユニットを天井側に設けることにより、１台のサテラ
イト用空間伝送ユニットで複数のターミナル用空間伝送
ユニットに対応させることができるから、施工性の向上
とともにコストの低減が図れ、またターミナル増設にも
容易に対応できるという効果がある。Furthermore, an optical transmitter that converts a transmission signal from a transmission line of a wired transmission system arranged on the ceiling side into an optical pulse signal and sends it out;
An optical receiver that receives an optical pulse signal from an optical space transmission system, demodulates it into a transmission signal of a wired transmission system, and sends it to the wired transmission system, and these optical transmitter and receiver, and a transmission line of the wired transmission system. By installing a space transmission unit for satellites on the ceiling side that is equipped with multiple circuit units consisting of interface means for electrically connecting between Since it can be adapted, it is possible to improve workability and reduce costs, and it also has the effect of easily responding to the expansion of terminals.
また各回路ユニット部の光受信部及び光透Ｍ部の光送受
信方向を設定するホーン状の光送受信方向設定治具をユ
ニット本体に回動自在に設けたサテライト用空間伝送ユ
ニットを天井側に設ければ、光送受信方向を自由に設定
できるから光空間伝送系のデータエラーの発生が少ない
適正な方向に光送受信方向を定めることができ、ターミ
ナル増設への対応のより一屑の簡便化が図れるという効
果がある。In addition, a space transmission unit for satellite is installed on the ceiling side, in which a horn-shaped light transmission/reception direction setting jig is rotatably mounted on the unit body to set the light transmission/reception direction of the light receiving section and the light transmitting M section of each circuit unit. If you do so, you can freely set the direction of optical transmission and reception, so you can set the direction of optical transmission and reception in an appropriate direction that reduces the occurrence of data errors in the optical space transmission system, making it even easier to accommodate the expansion of terminals. There is an effect.
＃４１図は本発明の一実施例の配置例図、第２図、第３
図は同上の模式化した構成図、第４図は同上使用の空間
伝送ユニットの回路構成図、第５図は本発明の別の実施
例の構成図、＄６図（、）（ｂ）は同上の空間伝送ユニ
ットの回路ユニット部の配置構成説明図、第７図は本発
明の他の実施例の構成図である。
１゜１・・・サテライト用空間伝送ユニット、Ｉ Ｉ＋
・・・ターミナル用空間伝送ユニット、１ ｌｉｔ １
ｂ、 １ ｃ・・・回路ユニット部、１０ａ、１０ｂ
、１０ｃ・・・光送受信方向設定治具、２１．・・・端
末機、３・・・光送信部、４・・・光受信部、ｉ ｏ
、１ ｌ−１２−１３・・・伝送ラインである。
代理人 弁理士 石 １）長 七
第３図
Ｊｏ
第４図
第５図
Ｊｏ
第６図
（ａ） （ｂ） ゛第７図#41 is a layout example diagram of one embodiment of the present invention, Figures 2 and 3
The figure is a schematic block diagram of the same as above, Figure 4 is a circuit block diagram of the space transmission unit used in the above, Figure 5 is a block diagram of another embodiment of the present invention, and Figure 6 (,) (b) is a block diagram of another embodiment of the present invention. FIG. 7, which is an explanatory diagram of the arrangement and configuration of the circuit unit section of the space transmission unit same as above, is a configuration diagram of another embodiment of the present invention. 1゜1...Satellite space transmission unit, I I+
...Space transmission unit for terminal, 1 lit 1
b, 1 c... circuit unit section, 10a, 10b
, 10c... Optical transmission/reception direction setting jig, 21. ...terminal device, 3...optical transmitter, 4...optical receiver, i o
, 1 l-12-13...transmission line. Agent Patent Attorney Ishi 1) Chief 7 Figure 3 Jo Figure 4 Figure 5 Jo Figure 6 (a) (b) ゛Figure 7
Claims (3)
送系の一部に、光空間伝送系を用いた伝送システムにお
いて、天井側に配設した有線伝送系の伝送ラインからの
伝送信号を光パルス信号に変換して送出する光送信部と
、光空間伝送系からの光パルス信号を受信して有線伝送
系の伝送信号に復調して有線伝送系に送出する光受信部
と、これら光送信部及び光受信部と有線伝送系の伝送ラ
インとの間を電気的に接続するインターフェース手段と
からなるサテライト用空間伝送ユニットを天井側に設け
、地上側に配設した有線伝送系の伝送ラインからの伝送
信号を光パルス信号に変換して送出する光送信部と、光
空間伝送系からの光パルス信号を受信して有線伝送系の
伝送信号に復調して有線伝送系に送出する光受信部と、
これら光送信部及び光受信部と有線伝送系の伝送ライン
との間を電気的に接続するインターフェース手段とから
なるターミナル用空間伝送ユニットを地上側に設け、サ
テライト用空間伝送ユニットとターミナル用空間伝送ユ
ニットとを１対１で対応させて半二重通信を行うように
して成ることを特徴とする伝送システム。(1) In a transmission system that uses an optical space transmission system as part of a wired transmission system that connects multiple terminals and transmits data, the transmission signal from the transmission line of the wired transmission system installed on the ceiling side. an optical transmitter that converts the optical pulse signal into an optical pulse signal and sends it out; an optical receiver that receives the optical pulse signal from the optical space transmission system, demodulates it into a transmission signal for the wired transmission system, and sends it to the wired transmission system; A satellite space transmission unit consisting of an optical transmitter and an interface means for electrically connecting the optical receiver and the transmission line of the wired transmission system is installed on the ceiling side, and the wired transmission system is installed on the ground side. An optical transmitter that converts the transmission signal from the line into an optical pulse signal and sends it out, and an optical transmitter that receives the optical pulse signal from the optical space transmission system, demodulates it into a transmission signal for the wired transmission system, and sends it out to the wired transmission system. a receiving section;
A terminal spatial transmission unit consisting of an interface means for electrically connecting these optical transmitting parts and optical receiving parts to the transmission line of the wired transmission system is provided on the ground side, and the satellite spatial transmission unit and the terminal spatial transmission unit are provided on the ground side. A transmission system characterized in that the transmission system is configured to perform half-duplex communication by providing one-to-one correspondence between units.
送系の一部に、光空間伝送系を用いた伝送システムにお
いて、天井側に配設した有線伝送系の伝送ラインからの
伝送信号を光パルス信号に変換して送出する光送信部と
、光空間伝送系からの光パルス信号を受信して有線伝送
系の伝送信号に復調して有線伝送系に送出する光受信部
と、これら光送信部及び光受信部と有線伝送系の伝送ラ
インとの間を電気的に接続するインターフェース手段と
からなる回路ユニット部を複数備えたサテライト用空間
伝送ユニットを天井側に設け、地上側に配設した有線伝
送系の伝送ラインからの伝送信号を光パルス信号に変換
して送出する光送信部と、光空間伝送系からの光パルス
信号を受信して有線伝送系の伝送信号に復調して有線伝
送系に送出する光受信部と、これら光送信部及び光受信
部と有線伝送系の伝送ラインとの間を電気的に接続する
インターフェース手段とからなるターミナル用空間伝送
ユニットを地上側に設け、サテライト用空間伝送ユニッ
ト内の上記各回路ユニット部とターミナル用空間伝送ユ
ニットとを１対１で対応させて半二重通信を行うように
して成ることを特徴とする伝送システム。(2) In a transmission system that uses an optical space transmission system as part of the wired transmission system that connects multiple terminals and transmits data, the transmission signal from the transmission line of the wired transmission system installed on the ceiling side. an optical transmitter that converts the optical pulse signal into an optical pulse signal and sends it out; an optical receiver that receives the optical pulse signal from the optical space transmission system, demodulates it into a transmission signal for the wired transmission system, and sends it to the wired transmission system; A space transmission unit for a satellite is provided on the ceiling side, and is equipped with a plurality of circuit unit sections each consisting of an interface means for electrically connecting between an optical transmitting section, an optical receiving section, and a transmission line of a wired transmission system, and is arranged on the ground side. An optical transmitter that converts the transmission signal from the transmission line of the wired transmission system installed into an optical pulse signal and sends it out, and an optical transmitter that receives the optical pulse signal from the optical space transmission system and demodulates it into the transmission signal of the wired transmission system. A space transmission unit for a terminal is provided on the ground side, which consists of an optical receiver that sends out data to the wired transmission system, and an interface means that electrically connects these optical transmitters and optical receivers to the transmission line of the wired transmission system. A transmission system characterized in that each of the circuit units in the satellite space transmission unit and the terminal space transmission unit are made to correspond one-to-one to perform half-duplex communication.
送系の一部に、光空間伝送系を用いた伝送システムにお
いて、天井側に配設した有線伝送系の伝送ラインからの
伝送信号を光パルス信号に変換して送出する光送信部と
、光空間伝送系からの光パルス信号を受信して有線伝送
系の伝送信号に復調して有線伝送系に送出する光受信部
と、これら光送信部及び光受信部と有線伝送系の伝送ラ
インとの間を電気的に接続するインターフェース手段と
からなる回路ユニット部を複数備えるとともに各回路ユ
ニット部の光受信部及び光送信部の光送受信方向を設定
するホーン状の光送受信方向設定治具をユニット本体に
回動自在に設けたサテライト用空間伝送ユニットを天井
側に設け、地上側に配設した有線伝送系の伝送ラインか
らの伝送信号を光パルス信号に変換して送出する光送信
部と、光空間伝送系からの光パルス信号を受信して有線
伝送系の伝送信号に復調して有線伝送系に送出する光受
信部と、これら光送信部及び光受信部と有線伝送系の伝
送ラインとの間を電気的に接続するインターフェース手
段とからなるターミナル用空間伝送ユニットを地上側に
設け、サテライト用空間伝送ユニット内の上記各回路ユ
ニット部とターミナル用空間伝送ユニットとを１対１で
対応させて半二重通信を行うようにして成ることを特徴
とする伝送システム。(3) In a transmission system that uses an optical space transmission system as part of a wired transmission system that connects multiple terminals and transmits data, the transmission signal from the transmission line of the wired transmission system installed on the ceiling side. an optical transmitter that converts the optical pulse signal into an optical pulse signal and sends it out; an optical receiver that receives the optical pulse signal from the optical space transmission system, demodulates it into a transmission signal for the wired transmission system, and sends it to the wired transmission system; It is equipped with a plurality of circuit unit sections consisting of an optical transmitting section and an interface means for electrically connecting the optical receiving section and the transmission line of the wired transmission system, and the optical transmitting and receiving section of the optical receiving section and the optical transmitting section of each circuit unit section. A space transmission unit for satellite is installed on the ceiling side with a horn-shaped optical transmission/reception direction setting jig that is rotatably attached to the unit body, and the transmission signal is transmitted from the transmission line of the wired transmission system installed on the ground side. an optical transmitter that converts the optical pulse signal into an optical pulse signal and sends it out; an optical receiver that receives the optical pulse signal from the optical space transmission system, demodulates it into a transmission signal for the wired transmission system, and sends it to the wired transmission system; A terminal space transmission unit consisting of an optical transmitter, an interface means for electrically connecting the optical receiver and the transmission line of the wired transmission system is provided on the ground side, and each of the above-mentioned circuit units in the satellite space transmission unit is provided on the ground side. A transmission system characterized in that a terminal space transmission unit and a terminal space transmission unit are in one-to-one correspondence to perform half-duplex communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63015042A JPH01190146A (en) | 1988-01-26 | 1988-01-26 | Transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63015042A JPH01190146A (en) | 1988-01-26 | 1988-01-26 | Transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01190146A true JPH01190146A (en) | 1989-07-31 |
Family
ID=11877781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63015042A Pending JPH01190146A (en) | 1988-01-26 | 1988-01-26 | Transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01190146A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5786921A (en) * | 1994-08-15 | 1998-07-28 | Actisys Corporation | Infrared communication device for multistandard operations |
| US6099608A (en) * | 1998-07-30 | 2000-08-08 | 3M Innovative Properties Company | Rotating filtration cartridge and blower for HVAC applications |
| US6099609A (en) * | 1998-07-30 | 2000-08-08 | 3M Innovative Properties Company | Moving sorbent filter device |
-
1988
- 1988-01-26 JP JP63015042A patent/JPH01190146A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5786921A (en) * | 1994-08-15 | 1998-07-28 | Actisys Corporation | Infrared communication device for multistandard operations |
| US6099608A (en) * | 1998-07-30 | 2000-08-08 | 3M Innovative Properties Company | Rotating filtration cartridge and blower for HVAC applications |
| US6099609A (en) * | 1998-07-30 | 2000-08-08 | 3M Innovative Properties Company | Moving sorbent filter device |
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