JP2606984Y2 - Spatial optical transmission equipment - Google Patents
Spatial optical transmission equipmentInfo
- Publication number
- JP2606984Y2 JP2606984Y2 JP1991051566U JP5156691U JP2606984Y2 JP 2606984 Y2 JP2606984 Y2 JP 2606984Y2 JP 1991051566 U JP1991051566 U JP 1991051566U JP 5156691 U JP5156691 U JP 5156691U JP 2606984 Y2 JP2606984 Y2 JP 2606984Y2
- Authority
- JP
- Japan
- Prior art keywords
- receiving
- light transmitting
- signal
- transmitting
- command circuit
- 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 - Fee Related
Links
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- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Optical Communication System (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、光送信部と光受信部と
を備えた送受光装置を室内を移動する無人車等に配設す
ると共に、該送受光装置と対をなして前記と同様な送受
光装置を空間の所定部分に配設し、対をなすこれら送受
光装置間で光を媒体とする通信を行なう空間光伝送装置
に関し、特に、これら送受光装置と中央制御装置間を連
結する伝送線の数を削減することができる空間光伝送装
置に関するものである。BACKGROUND OF THE INVENTION The present invention provides a light transmitting / receiving device provided with an optical transmitting unit and a light receiving unit on an unmanned vehicle or the like moving in a room, and forming a pair with the light transmitting / receiving device. A spatial light transmission device in which a similar light transmitting and receiving device is disposed in a predetermined portion of a space and a communication using light as a medium between the pair of light transmitting and receiving devices is performed. The present invention relates to a spatial light transmission device capable of reducing the number of connected transmission lines.
【０００２】[0002]
【従来の技術】無人台車やスタッカークレーンのような
移動物体と固定点間のデータ伝送、移動物体間のデータ
伝送、或は自動機器等で生じるインターロック信号や収
集された情報等のデータ伝送、集中制御装置から自動機
器等に対する指示といったデータ伝送に空間光伝送装置
が使用されることは周知である。この空間光伝送装置は
空間を進行する光を伝送の媒体とし、該光媒体に種々の
データを載せて伝送するものである。2. Description of the Related Art Data transmission between a moving object such as an unmanned trolley and a stacker crane and a fixed point, data transmission between moving objects, or data transmission of an interlock signal or collected information generated by an automatic device or the like, It is well known that a spatial light transmission device is used for data transmission such as an instruction from a centralized control device to an automatic device or the like. This spatial light transmission device uses light traveling in space as a transmission medium, and transmits various data on the optical medium.
【０００３】一方、コンベア、スタッカークレーン等を
組み合わせた自動倉庫や自動搬送ラインと組み立てライ
ンとの間に無人台車を運転し、資材、部品、製品の保管
補給、運搬、組み立てといった一連の生産工程を計画的
に効率よく自動的に制御するために、各工程内で使用さ
れている各種センサやリミットスイッチまた電磁弁のよ
うな駆動源や無人台車といった複数の制御対象物或いは
計測器等と例えば、コンピュータのような制御機器との
間を空間光伝送装置や電線或いはファイバー等で結合
し、階層的にネットワークを構成して各種機器の状況把
握、各機器への作動指令といった情報を収集・加工し、
送受することで各端末機器を時間的、空間的に効率良く
作動させるという総合的システムを構築することが多々
行われている。On the other hand, an unmanned trolley is operated between an automatic warehouse or an automatic transport line and an assembly line, which combine a conveyor, a stacker crane, and the like, to perform a series of production processes such as storage, replenishment, transportation, and assembly of materials, parts, and products. In order to automatically control systematically and efficiently, various control objects such as various sensors and limit switches or driving sources such as solenoid valves and unmanned trolleys such as unmanned trolleys, and measuring instruments, for example, It is connected to a control device such as a computer with a spatial light transmission device, electric wire or fiber, etc. and forms a hierarchical network to collect and process information such as grasping the status of various devices and operating commands to each device. ,
2. Description of the Related Art A comprehensive system for efficiently operating each terminal device in terms of time and space by transmitting and receiving is often performed.
【０００４】このような場合、ネットワークの階層が上
位から下位になるに従い制御機器間の結合から制御器機
と端末機器との結合へと移行していくため信号伝送手段
に要する機器間の配線数が増大していくことになる。In such a case, as the hierarchy of the network changes from higher to lower, the connection between the control devices shifts to the connection between the control device and the terminal device. Will increase.
【０００５】図１は、シーケンサーのような制御機器
（指令回路）（Ｃ）をマスターとし、これのスレーブと
なる送受光装置（Ｒ１〜Ｒｎ），（ｒ１〜ｒｎ）を持
ち、これらと指令回路（Ｃ）との間で有線通信を行い、
更にこれら送受光装置（Ｒ１〜Ｒｎ），（ｒ１〜ｒｎ）
と被制御機器である自動機器（Ｍ１〜Ｍｎ）の信号出入
り口となる送受光装置（Ｓ１〜Ｓｎ），或いは、無人台
車（Ｌ）との間の通信に空間光伝送装置を使用した場合
の従来例を示す概略ブロック図であり、上記シーケンサ
ーのような制御機器（指令回路）（Ｃ）は、工場、自動
倉庫など屋社内の一隅に設けた管理室あるいはこれらと
は離れた管理棟内に設けられる。自動機器（Ｍ１〜Ｍ
ｎ）は工場内の所定位置に設置される。送受光装置（Ｒ
１〜Ｒｎ），（Ｓ１〜Ｓｎ），（ｒ０），（ｒ１〜ｒ
ｎ）は、これらと通信を行う機器の近辺、例えば自動機
器が設置されている近辺の側壁、あるいは無人台車
（Ｌ）の走行通路上空の天井等に設置される。FIG. 1 shows a control device (command circuit) (C) such as a sequencer as a master, which has slave devices (R1 to Rn) and (r1 to rn) serving as slaves thereof. (C) to perform wired communication,
Further, these light transmitting and receiving devices (R1 to Rn), (r1 to rn)
A conventional case in which a spatial light transmission device is used for communication between the control device and the automatic transmission / reception device (S1 to Sn) serving as a signal entrance / exit of the automatic device (M1 to Mn) or the unmanned trolley (L). FIG. 3 is a schematic block diagram showing an example, in which a control device (command circuit) (C) such as the above-mentioned sequencer is provided in a control room provided in a corner of a building, such as a factory or an automatic warehouse, or in a control building remote from these. Can be Automatic equipment (M1-M
n) is installed at a predetermined position in the factory. Transmitter / receiver (R
1 to Rn), (S1 to Sn), (r0), (r1 to r
n) is installed near a device that communicates with them, for example, on a side wall near an automatic device, or on a ceiling above a traveling passage of an unmanned trolley (L).
【０００６】図１において、送受光装置（Ｒ１〜Ｒｎ，
Ｓ１〜Ｓｎ，ｒ０，ｒ１〜ｒｎ）は８ビットの並列入出
力信号処理ができる、すなわち、８本の通信線が通信を
行う両者間に接続されていて、これら８本の通信線に同
時に送られる信号の組合せで、通信内容を判断するもの
である（これをパラレルな信号の送受と定義する）。そ
して、送受光装置（Ｒ１〜Ｒｎ）と（Ｓ１〜Ｓｎ）はそ
れぞれ固定して設置されているものであるから、送受光
装置（Ｒ１）と送受光装置（Ｓ１）のように相対して一
対で使用される。送受光装置（ｒ１〜ｒｎ）は無人台車
Ｌに搭載された１個の送受光装置（ｒ０）と対応するも
のであり、無人台車Ｌが移動する毎に、送受光装置（ｒ
０）がその位置に対応する送受光装置と通信を行うもの
である。In FIG. 1, a light transmitting / receiving device (R1 to Rn,
S1 to Sn, r0, r1 to rn) can perform 8-bit parallel input / output signal processing, that is, eight communication lines are connected between the two communicating devices, and are simultaneously transmitted to these eight communication lines. The communication content is determined by the combination of the signals received (this is defined as parallel signal transmission / reception). Since the light transmitting and receiving devices (R1 to Rn) and (S1 to Sn) are fixedly installed, respectively, the light transmitting and receiving device (R1) and the light transmitting and receiving device (S1) are opposed to each other. Used in. The light transmitting and receiving devices (r1 to rn) correspond to one light transmitting and receiving device (r0) mounted on the unmanned vehicle L, and each time the unmanned vehicle L moves, the light transmitting and receiving device (r)
0) communicates with the light transmitting / receiving device corresponding to the position.
【０００７】指令回路（Ｃ）は、一般的に制御盤のごと
き画体に収納され、前記のように指令回路（Ｃ）が別棟
の管理棟に配設されている場合には、各生産現場に配置
されている送受光装置（Ｒ１〜Ｒｎ），（Ｓ１〜Ｓ
ｎ），（ｒ１〜ｒｎ）或いは、自動機（Ｍ１〜Ｍｎ）と
は通常かなりの距離を隔てて設置されている。The command circuit (C) is generally housed in a picture such as a control panel. When the command circuit (C) is provided in a separate management building as described above, each production site Light transmitting and receiving devices (R1 to Rn), (S1 to Sn)
n), (r1 to rn) or the automatic machines (M1 to Mn) are usually installed at a considerable distance.
【０００８】また、無人台車（Ｌ）は、送受光装置（ｒ
0 ）とシーケンサのような制御機器（Ｃ0 ）を装備して
おり、離れて設置されている各地上局間を移動しながら
材料、製品、工具といった物品運搬情報のアクセスを各
地上局に設置されている送受光装置（ｒ1 〜ｒn ）との
間で行っている。The unmanned trolley (L) includes a light transmitting / receiving device (r)
0) and a control device (C0) such as a sequencer, etc., are installed at each ground station to access material transportation information such as materials, products, and tools while moving between the ground stations that are remotely located. Between the transmitting and receiving devices (r1 to rn).
【０００９】また、送受光装置（Ｓ１〜Ｓｎ）は、各工
程に応じて配置されている自動機（Ｍ１〜Ｍｎ）の近く
に設置されている。端末スイッチ（１１〜１８）群から
の８ビット並列信号は自動機（Ｍ１〜Ｍｎ）側の送受光
装置（Ｓ１〜Ｓｎ）を介して送受光装置（Ｒ１〜Ｒｎ）
へ伝送され、該送受光装置（Ｒ１〜Ｒｎ）から各々８本
のワイヤーを通じて指令回路（Ｃ）へ入力される。The light transmitting and receiving devices (S1 to Sn) are installed near automatic machines (M1 to Mn) arranged according to each process. The 8-bit parallel signals from the group of terminal switches (11 to 18) are transmitted and received by the light transmitting and receiving devices (R1 to Rn) via the light transmitting and receiving devices (S1 to Sn) on the automatic machine (M1 to Mn) side.
And transmitted from the light transmitting / receiving device (R1 to Rn) to the command circuit (C) through eight wires.
【００１０】一方、指令回路（Ｃ）の８ビット並列信号
からなる指令情報は各々８本のワイヤーを通じて送受光
装置（Ｒ１〜Ｒｎ）へ入力され、送受光装置（Ｓ１〜Ｓ
ｎ）を介して駆動源（Ｄ１〜Ｄ８）群を制御している。On the other hand, command information consisting of an 8-bit parallel signal of the command circuit (C) is input to the light transmitting and receiving devices (R1 to Rn) through eight wires, respectively, and transmitted and received by the light transmitting and receiving devices (S1 to Sn).
n) to control the drive sources (D1 to D8).
【００１１】また、指令回路（Ｃ）から無人台車（Ｌ）
への８ビット並列信号は、それぞれ８本のワイヤーでも
って並列に配線された送受光装置（ｒ１〜ｒｎ）を介し
て地上局で無人台車上の送受光装置（ｒ０）へ伝送さ
れ、制御機器（Ｃ０）での処理後、無人台車Ｌの駆動装
置に伝達され、無人台車はその指令に対応した所定の位
置へ移動し、作業を行うと共に無人台車（Ｌ）内の情報
を送受光装置（ｒ０）を通して逆ルートで指令回路
（Ｃ）へ入力することになる。[0011] Also, the command circuit (C) to the unmanned trolley (L)
8 bit parallel signal is transmitted to the light transmitting and receiving device (r0) on the unmanned bogie at the ground station via the light transmitting and receiving devices (r1 to rn) wired in parallel with eight wires each. After the processing in (C0), the information is transmitted to the drive unit of the unmanned trolley L, the unmanned trolley moves to a predetermined position corresponding to the command, performs work, and transmits information in the unmanned trolley (L) to the light transmitting / receiving device ( The signal is input to the command circuit (C) in the reverse route through r0).
【００１２】なお、図１では信号線のみをブロック的に
記してある。In FIG. 1, only signal lines are shown in block form.
【００１３】[0013]
【考案が解決しようとする課題】ところで上述のよう
な、指令回路（Ｃ）を使用し、かつこれに対応する複数
の送受光装置を設け、光電スイッチ、リミットスイッ
チ、電磁弁といった端末機器を制御する下位層のシステ
ムを構成する場合、ソフトウエア面で、設計側にもきわ
めて扱いやすい並列入出力信号処理方式が適しており多
く使用されているが、図１の例でも明らかなように、指
令回路（Ｃ）とこれの端末機器となる送受光装置（Ｒ１
〜Ｒｎ），（ｒ１〜ｒｎ）の各々との間で必要な入出力
信号数（例えば、８ビット、１６ビット、３２ビツト
等）に対応した数十本〜数百本の配線引き回しが必要と
なり、その布線費用は膨大なものとなる。By the way, the above-mentioned command circuit (C) is used, and a plurality of light transmitting / receiving devices corresponding thereto are provided to control terminal devices such as a photoelectric switch, a limit switch, and a solenoid valve. In the case of configuring a lower layer system, a parallel input / output signal processing method, which is very easy to handle on the design side, is suitable for software and is often used, but as is clear from the example of FIG. Circuit (C) and a light transmitting / receiving device (R1
To Rn) and (r1 to rn), tens to hundreds of wirings corresponding to the required number of input / output signals (for example, 8 bits, 16 bits, 32 bits, etc.) are required. However, the wiring cost is enormous.
【００１４】特に各スレーブとマスターの設置場所は遠
隔である場合が多くその敷線施工費用が嵩むだけでな
く、途中障害物の迂回させた場合、一層の敷線施工費用
が嵩む。また、その敷線距離が長くなると、システムの
変更、マスターの移動などを行う場合、膨大な配線全部
を取り替えるなど、実施面で大きな問題となっている。In particular, the installation locations of the slaves and the master are often remote, which not only increases the installation cost of the wiring, but also increases the installation cost of the wiring if the obstacle is detoured on the way. In addition, when the wiring distance becomes long, when a system is changed, a master is moved, or the like, all huge wirings are replaced.
【００１５】本考案は上述のような従来の欠点を解消す
るものであり、その目的はマスターとなる指令回路とこ
れに支配されてスレーブとなる複数の送受光装置との間
に敷設される配線数をきわめて少なくすることができる
空間光伝送装置を得ることにある。The present invention solves the above-mentioned drawbacks of the prior art, and has as its object the wiring laid between a command circuit serving as a master and a plurality of light transmitting / receiving devices controlled by the master and serving as slaves. An object of the present invention is to provide a spatial light transmission device capable of extremely reducing the number.
【００１６】[0016]
【課題を解決するための手段】上述のような本考案の目
的を達成するために、本考案は指令回路をマスターと
し、該指令回路からなるマスターのスレーブとなる複数
の第１の送受光装置を持ち、該指令回路と該複数の第１
の送受光装置の間で有線通信を行い、更にこれら複数の
第１の送受光装置と被制御機器等との間の通信に空間光
伝送方式を使用する空間光伝送装置において、シリアル
な信号の送受が自在な指令回路と、該シリアルな信号の
送受が自在な指令回路と複数の第１の送受光装置との間
をループ状に接続し、シリアルな信号の送受を行う通信
線と、該シリアルな信号の送受が自在な指令回路と前記
通信線により接続され、この指令回路から送られるシリ
アルな信号をパラレルな信号に変換し、パラレルな信号
をシリアルな信号に変換して指令回路に送出する変換回
路を有する複数の第１の送受光装置と、複数の第１の送
受光装置と間隔をおいて配置されると共に、光送信部と
光受信部とを備えて被制御機器との間で信号の授受を行
う第２の送受光装置と、上記第２の送受光装置と被制御
機器とを搭載し、前記複数の第１の送受光装置との間の
信号授受可能範囲内で移動可能である無人台車と、を備
えたことを特徴とする空間光伝送装置を提供する。In order to achieve the object of the present invention as described above, in the present invention, a plurality of first light transmitting / receiving devices, each having a command circuit as a master and serving as a slave of a master including the command circuit, are provided. And the command circuit and the plurality of first
In a spatial light transmission device that uses a spatial light transmission method for communication between the plurality of first light transmission / reception devices and a controlled device, etc., wired communication is performed between the light transmission / reception devices. A command circuit capable of sending and receiving freely, a communication line connecting the command circuit capable of sending and receiving the serial signal and the plurality of first light transmitting and receiving devices in a loop, and transmitting and receiving a serial signal; The communication circuit is connected to a command circuit capable of freely transmitting and receiving a serial signal, and converts a serial signal sent from the command circuit into a parallel signal, converts a parallel signal into a serial signal, and sends the signal to the command circuit. A plurality of first light transmitting and receiving devices having a conversion circuit, and a plurality of first light transmitting and receiving devices, which are arranged at an interval from the plurality of first light transmitting and receiving devices, and which include an optical transmitting unit and an optical receiving unit, and Second light transmitting and receiving device for transmitting and receiving signals And an unmanned carriage that is mounted with the second light transmitting and receiving device and the controlled device, and that is movable within a signal transferable range between the plurality of first light transmitting and receiving devices. Provided is a spatial light transmission device characterized by the following.
【００１７】[0017]
【作用】第１の送受光装置では、指令回路からシリアル
な信号の送受を行う通信線を介して送られるシリアルな
信号を受け、パラレルな信号に変換し、更に変調光信号
として第２の送受光装置に空間伝送する。In the first light transmitting and receiving device, a serial signal transmitted from a command circuit via a communication line for transmitting and receiving a serial signal is received, converted into a parallel signal, and further converted as a modulated optical signal into a second transmitting and receiving device. Spatial transmission to the light receiving device.
【００１８】また、第１の送受光装置では、第２の送受
光装置からのパラレルな信号を空間変調光信号として受
光し、そのパラレルな信号をシリアルな信号に再生し
て、シリアルな信号の送受を行う通信線を介して指令回
路に送信する。The first light transmitting and receiving device receives a parallel signal from the second light transmitting and receiving device as a spatially modulated optical signal, reproduces the parallel signal into a serial signal, and converts the parallel signal into a serial signal. The signal is transmitted to the command circuit via the communication line for transmission and reception.
【００１９】[0019]
【実施例】次に，本考案の実施例を図面について説明す
る。Next, an embodiment of the present invention will be described with reference to the drawings.
【００２０】図２は従来例と同様な１個の並列入出力型
の送受光装置のブロック構成図である。図２には示され
てはいないが、例えば図１に示すシーケンサのような制
御機器の並列８ビット出力信号が入力端子（７）を通し
て送受光装置に入力されると、その８ビット信号は信号
処理部（６）と発信器（２）により変調されたパルス信
号に変換され、増幅器（３）により電流増幅され、発光
ダイオードのような光源（１）を点滅させて変調光
（９）となって空間へ放射される。FIG. 2 is a block diagram of one parallel input / output type light transmitting / receiving device similar to the conventional example. Although not shown in FIG. 2, for example, when a parallel 8-bit output signal of a control device such as the sequencer shown in FIG. 1 is input to the light transmitting / receiving device through the input terminal (7), the 8-bit signal becomes a signal. The pulse signal is converted into a modulated pulse signal by the processing unit (6) and the transmitter (2), the current is amplified by the amplifier (3), and the light source (1) such as a light emitting diode is turned on and off to become a modulated light (9). Radiated into space.
【００２１】この放射された光は、図示されてはないが
通常対をなして使用される他方の送受光装置で受光され
る。The emitted light is received by the other light transmitting and receiving device, which is not shown but is usually used in pairs.
【００２２】その他方から放射された上記と同様に変調
された光（１０）は受光素子（４）により電気信号に変
換され、増幅器（５）により増幅され信号処理部（６）
にてパルス列信号から並列８ビット信号に復調されて、
出力端子（８）を介してシーケンサの入力端子へと接続
されることになり、入出力信号線数は合計１６本の配線
が必要となる。The light (10) modulated in the same manner and emitted from the other side is converted into an electric signal by the light receiving element (4), amplified by the amplifier (5), and processed by the signal processing section (6).
Demodulated from the pulse train signal to a parallel 8-bit signal,
It is connected to the input terminal of the sequencer via the output terminal (8), so that a total of 16 input / output signal lines are required.
【００２３】図３は本考案にかかる空間光伝送装置を構
成する送受光装置のブロック図であり、図２と同様に信
号処理部６に対する入出力信号は並列の８ビットで処理
される。FIG. 3 is a block diagram of a light transmitting / receiving device constituting the spatial light transmission device according to the present invention. As in FIG. 2, input / output signals to / from the signal processing section 6 are processed by parallel 8 bits.
【００２４】図３において、（ａ）は変換処理回路であ
り、入力端子（１１）から入力されたシリアルな信号を
パラレルな８ビットの信号に変換して、信号処理部
（６）に送出し、信号処理部（６）から送られてくるパ
ラレルな信号をシリアルな信号に変換して出力端子（１
２）から送出する。なお、図中、符号（１）〜（５）、
（９）、（１０）は図２に示す同一符号の部品と同じで
ある。変換処理回路（ａ）の入力端子（１１）と出力端
子（１２）は、図示されていない例えばシーケンサのよ
うな制御機器に接続され、これから送られてくるシリア
ルな出力信号は入力端子（１１）を通して変換処理回路
（ａ）に送られ、該回路で８ビットのパラレルな信号に
変換された後、信号処理部（６）へ送られ、その後、図
２において従来例として説明したよう、にパルス列変調
光として放射される。In FIG. 3, (a) is a conversion processing circuit which converts a serial signal input from the input terminal (11) into a parallel 8-bit signal and sends it to the signal processing section (6). , The parallel signal sent from the signal processing unit (6) is converted into a serial signal and output to the output terminal (1).
Send out from 2). In the figure, reference numerals (1) to (5),
(9) and (10) are the same as the parts with the same reference numerals shown in FIG. An input terminal (11) and an output terminal (12) of the conversion processing circuit (a) are connected to a control device (not shown) such as a sequencer, and a serial output signal sent from the input terminal (11) is input terminal (11). The signal is sent to a conversion processing circuit (a) through the circuit, converted into an 8-bit parallel signal by the circuit, and then sent to a signal processing unit (6). Thereafter, as described in FIG. Emitted as modulated light.
【００２５】一方、これと対をなす図示されていない他
方の送受光装置からの放射光は受光素子（４）で電気信
号へと変換され増幅器（５）により増幅され、信号処理
部（６）を経て８ビットパラレルな信号に復調され変換
処理回路（ａ）にて８ビットのシリアルな信号列に再生
されて、出力端子（１２）を介してシーケンサ結合ライ
ンへ載せられてシーケンサへと伝達される。On the other hand, the radiated light from the other light transmitting and receiving device (not shown) forming a pair is converted into an electric signal by the light receiving element (4), amplified by the amplifier (5), and is processed by the signal processing section (6). The signal is demodulated into an 8-bit parallel signal via a converter, and is converted into an 8-bit serial signal sequence by the conversion processing circuit (a), and is loaded on a sequencer connection line via an output terminal (12) and transmitted to the sequencer. You.
【００２６】このようにして入出力信号線数は各々１〜
２本で８ビットの信号伝送ができることになる。As described above, the number of input / output signal lines is 1 to
It is possible to transmit an 8-bit signal with two lines.
【００２７】図４は本考案に係る空間光伝送装置を、図
１で説明した従来の複数の端末機器とシーケンサとの接
続を行わせたシステムに適用した実施例を示す。FIG. 4 shows an embodiment in which the spatial light transmission device according to the present invention is applied to the conventional system for connecting a plurality of terminal devices and a sequencer described with reference to FIG.
【００２８】図４において、Ａはシリアルな信号の送受
ができるシーケンサ等の指令回路であって、シリアルな
信号の送受を行う配線（ｗ）（通信線）でもって本考案
の第１の送受光装置（Ｐ１〜Ｐｎ．ｄ１〜ｄｎ）と結合
している。In FIG. 4, reference numeral A denotes a command circuit such as a sequencer capable of transmitting and receiving a serial signal. The first transmitting and receiving circuit of the present invention is provided by a wiring (w) (communication line) for transmitting and receiving a serial signal. Devices (P1 to Pn.d1 to dn).
【００２９】一方、送受光装置Ｐ1 〜Ｐn と相対して、
送受光装置（Ｓ1 〜Ｓn ）が配置され、各々には端末機
器としてＭ1 〜Ｍn が接続され、各端末機器Ｍ1 〜Ｍn
にはリミットスイッチ（ｌ1 〜ｌ8 ）および電磁弁（Ｄ
1 〜Ｄ8 ）が設けられている。On the other hand, as opposed to the light transmitting / receiving devices P1 to Pn,
Transmitting and receiving devices (S1 to Sn) are arranged, and M1 to Mn are connected to each as terminal devices.
Has limit switches (11 to 18) and solenoid valves (D
1 to D8) are provided.
【００３０】また、１台の無人台車（Ｌ）には従来と同
様な送受光装置（ｒ０）とシーケンサのような制御機器
（Ｃ０）が装備されていて、各ステーションに配備され
ている送受光装置（ｄ１）〜（ｄｎ）との間で信号の送
受を行うシステム構成は図１に示す従来のシステムと同
様であるが、送受光装置ｐ１〜ｐｎ、ｄ１〜ｄｎが本考
案に係る第１の送受光装置であることと、これらがシー
ケンサ（Ａ）（指令回路）に対してシリアルな信号の送
受を行う配線（ｗ）（通信線）でもって結合されてい
て、指令回路（Ａ）から送られるシリアルな信号をパラ
レルな信号に変換し、空間光伝送方式で受信したパラレ
ルな信号をシリアルな信号に変換して指令回路に送出す
る変換回路を第１の送受光装置に設けた点が異なってい
る。A single unmanned trolley (L) is equipped with a conventional light transmitting / receiving device (r0) and a control device (C0) such as a sequencer. The system configuration for transmitting and receiving signals to and from the devices (d1) to (dn) is the same as that of the conventional system shown in FIG. 1, except that the light transmitting and receiving devices p1 to pn and d1 to dn according to the present invention are the first. Are connected by a wiring (w) (communication line) for transmitting and receiving a serial signal to and from the sequencer (A) (command circuit). The first light transmitting / receiving device is provided with a conversion circuit that converts a transmitted serial signal into a parallel signal, converts a parallel signal received by the spatial light transmission method into a serial signal, and sends the signal to a command circuit. Is different.
【００３１】さて、シーケンサ（Ａ）からは、ある周期
で送受光装置Ｐ1 〜Ｐn 、ｄ1 〜ｄn に対し、所定の手
順に従い一定のビット配列をしたシリアルな信号列が配
線（ｗ）を通し出力される。各送受光装置Ｐ1 〜Ｐn 、
ｄ1 〜ｄn は各自の認識番号に応じた８ビットのデータ
列を受けとり、図３で説明した動作手順で変調光に変換
し相対した送受光装置Ｓ1 〜Ｓn あるいは送受光装置ｒ
0 にデータを転送し、電磁弁（Ｄ1 〜Ｄ8 群）を駆動し
たり制御機器Ｃ0 へ指示を与える。From the sequencer (A), a serial signal sequence having a fixed bit array according to a predetermined procedure is output from the sequencer (A) to the light transmitting / receiving devices P1 to Pn and d1 to dn via the wiring (w). Is done. Each of the light transmitting and receiving devices P1 to Pn,
Each of d1 to dn receives an 8-bit data string corresponding to its own identification number, converts it into modulated light by the operation procedure described with reference to FIG. 3, and faces the corresponding light transmitting / receiving device S1 to Sn or light transmitting / receiving device r.
0 to transfer the data to drive the solenoid valves (groups D1 to D8) and give instructions to the control device C0.
【００３２】一方、リミットスイッチ（ｌ1 〜ｌ8 群）
からの端末情報は送受光装置Ｓ1 〜Ｓn から送受光装置
Ｐ1 〜Ｐn へ、また制御機器（Ｃ0 ）からの情報データ
は送受光装置ｒ0 から送受光装置ｄ1 〜ｄn のいずれか
へ伝送され、シーケンサ（Ａ）から所定読取り周期で配
線（結合ライン）（ｗ）に吸い上げられ、シリアルな信
号列となってシーケンサ（Ａ）へと伝送される。このよ
うに各端末での８ビットパラレルな信号は本考案に基づ
く空間光伝送装置を使用することによりシリアルな信号
へと変換されてしまう。したがって、入出力信号線各１
〜２本にて処理されてしまうことになる。On the other hand, limit switches (groups l1 to l8)
Terminal information from the light transmitting and receiving devices S1 to Sn to the light transmitting and receiving devices P1 to Pn, and information data from the control device (C0) from the light transmitting and receiving device r0 to one of the light transmitting and receiving devices d1 to dn. From (A), it is taken up by a wiring (coupling line) (w) at a predetermined reading cycle, and transmitted as a serial signal sequence to the sequencer (A). As described above, the 8-bit parallel signal at each terminal is converted into a serial signal by using the spatial light transmission device according to the present invention. Therefore, each one of the input / output signal lines
That is, the processing is performed by two or more.
【００３３】[0033]
【考案の効果】以上詳細に説明した様に本願考案は、上
述のような構成を有することにより、指令回路と第１の
送受光装置間を接続する通信線がシリアルな信号の送受
を行う簡単な通信線で済むので、その敷線施工にかかる
費用．時間も極端に少なくなり、またシステムの規模が
大きくなればなる程その効果は計り知れないものとなる
し、指令回路と第１の送受光装置との設置距離を問題と
する障害もなくなってしまうなど付帯的費用も大きく削
減されることとなり本考案に基づく効果は絶大である。
特に、第２の送受光装置が縦横無尽に走り回る無人の台
車に搭載されているので、１台の無人の台車に対して第
１の送受光装置を多数配置している場合に、上記の効果
は顕著なものとなる。As described above in detail, according to the present invention having the above-described configuration, the communication line connecting the command circuit and the first light transmitting / receiving device transmits and receives serial signals. The cost for the construction of the laying line is sufficient because the communication line is sufficient. The time becomes extremely short, and the effect becomes immeasurable as the scale of the system increases, and there is no obstacle to the installation distance between the command circuit and the first light transmitting / receiving device. Such incidental costs are greatly reduced, and the effect based on the present invention is enormous.
In particular, since the second light transmitting and receiving device is mounted on an unmanned bogie that runs around in all directions, the above-described effect is obtained when a large number of first light transmitting and receiving devices are arranged for one unmanned bogie. Becomes noticeable.
【図１】従来のシーケンサ結合で８ビットの並列入出力
信号処理ができる空間光伝送装置のブロック図である。FIG. 1 is a block diagram of a conventional spatial light transmission device capable of performing 8-bit parallel input / output signal processing by a sequencer combination.
【図２】従来の送受光装置のブロック図である。FIG. 2 is a block diagram of a conventional light transmitting and receiving device.
【図３】本考案の空間光伝送装置に使用される送受光装
置のブロック図である。FIG. 3 is a block diagram of a light transmitting and receiving device used in the spatial light transmission device of the present invention.
【図４】本考案の空間光伝送装置を示すブロック図であ
る。FIG. 4 is a block diagram showing the spatial light transmission device of the present invention.
Ａ…シーケンサ Ｃ…制御機器 ａ…変換処理回路 Ｒ1 〜Ｒn …送受光装置 ｒ0 、ｒ1 〜ｒn …送受光装置 Ｓ1 〜Ｓn …送受光装置 Ｍ1 〜…Ｍn …自動機 Ｌ…無人台車 ｗ…配線 １…光源 ２…発信器 ３…増幅器 ４…受光素子 ５…増幅器 ６…信号処理部 ７…入力端子 ８…出力端子 ９…変調光 １０…光 １１…入力端子 １２…出力端子 A: sequencer C: control equipment a: conversion processing circuit R1 to Rn: light transmitting / receiving device r0, r1 to rn: light transmitting / receiving device S1 to Sn: light transmitting / receiving device M1 to Mn: automatic machine L: unmanned trolley w: wiring 1 ... Light source 2 ... Transmitter 3 ... Amplifier 4 ... Light receiving element 5 ... Amplifier 6 ... Signal processing unit 7 ... Input terminal 8 ... Output terminal 9 ... Modulated light 10 ... Light 11 ... Input terminal 12 ... Output terminal
───────────────────────────────────────────────────── フロントページの続き (72)考案者 二宮正明 愛知県春日井市味美町２丁目156番地 東洋電子株式会社内 (56)参考文献 特開 昭59−81935（ＪＰ，Ａ) 特開 昭63−152299（ＪＰ，Ａ) 特開 昭58−107743（ＪＰ，Ａ) 特開 昭63−288693（ＪＰ，Ａ) 特開 昭51−49386（ＪＰ，Ａ) 特開 昭62−277979（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masaaki Ninomiya 2-156, Amimachi, Kasugai-shi, Aichi Toyo Denshi Co., Ltd. (56) References JP-A-59-81935 (JP, A) JP-A-63- 152299 (JP, A) JP-A-58-107743 (JP, A) JP-A-63-288693 (JP, A) JP-A-51-49386 (JP, A) JP-A-62-277979 (JP, A)
Claims (1)
らなるマスターのスレーブとなる複数の第１の送受光装
置を持ち、該指令回路と該複数の第１の送受光装置の間
で有線通信を行い、更にこれら複数の第１の送受光装置
と被制御機器等との間の通信に空間光伝送方式を使用す
る空間光伝送装置において、 シリアルな信号の送受が自在な指令回路と、 該シリアルな信号の送受が自在な指令回路と複数の第１
の送受光装置との間をループ状に接続し、シリアルな信
号の送受を行う通信線と、 該シリアルな信号の送受が自在な指令回路と前記通信線
により接続され、この指令回路から送られるシリアルな
信号をパラレルな信号に変換し、パラレルな信号をシリ
アルな信号に変換して指令回路に送出する変換回路を有
する複数の第１の送受光装置と、 複数の第１の送受光装置と間隔をおいて配置されると共
に、光送信部と光受信部とを備えて被制御機器との間で
信号の授受を行う第２の送受光装置と、 上記第２の送受光装置と被制御機器とを搭載し、前記複
数の第１の送受光装置との間の信号授受可能範囲内で移
動可能である無人台車と、 を備えたことを特徴とする空間光伝送装置。1. A command circuit having a plurality of first light transmitting / receiving devices serving as a master and a master slave comprising the command circuit, and wired communication between the command circuit and the plurality of first light transmitting / receiving devices. A spatial light transmission device that uses a spatial light transmission system for communication between the plurality of first light transmitting and receiving devices and the controlled device, etc., wherein a command circuit capable of freely transmitting and receiving serial signals; A command circuit that can send and receive serial signals freely and multiple first
And a communication line for transmitting and receiving a serial signal, and a command circuit for freely transmitting and receiving the serial signal, which is connected to the communication line and transmitted from the command circuit. A plurality of first light transmitting / receiving devices having a conversion circuit for converting a serial signal into a parallel signal, converting the parallel signal into a serial signal, and sending the converted signal to a command circuit; A second light transmitting and receiving device that is arranged at an interval and includes an optical transmitting unit and an optical receiving unit for transmitting and receiving signals to and from a controlled device; An unmanned trolley mounted with a device and movable within a signal transmittable / receiveable range between the plurality of first light transmitting / receiving devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991051566U JP2606984Y2 (en) | 1991-06-07 | 1991-06-07 | Spatial optical transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991051566U JP2606984Y2 (en) | 1991-06-07 | 1991-06-07 | Spatial optical transmission equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0531395U JPH0531395U (en) | 1993-04-23 |
| JP2606984Y2 true JP2606984Y2 (en) | 2001-02-19 |
Family
ID=12890521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991051566U Expired - Fee Related JP2606984Y2 (en) | 1991-06-07 | 1991-06-07 | Spatial optical transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2606984Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981935A (en) * | 1982-11-01 | 1984-05-11 | Mitsubishi Electric Corp | Compound optical communication system |
| JPS63152299A (en) * | 1986-12-17 | 1988-06-24 | Fuji Electric Co Ltd | Communication equipment in group equipment |
-
1991
- 1991-06-07 JP JP1991051566U patent/JP2606984Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531395U (en) | 1993-04-23 |
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