JPH01100542U - - Google Patents
Info
- Publication number
- JPH01100542U JPH01100542U JP1987195775U JP19577587U JPH01100542U JP H01100542 U JPH01100542 U JP H01100542U JP 1987195775 U JP1987195775 U JP 1987195775U JP 19577587 U JP19577587 U JP 19577587U JP H01100542 U JPH01100542 U JP H01100542U
- Authority
- JP
- Japan
- Prior art keywords
- optical cable
- line
- optical
- bidirectional
- half mirror
- 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
- 230000003287 optical effect Effects 0.000 claims description 29
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Description
第１図は、１回線式の光ケーブル通信回線に適
用された本考案の１実施例を示す双方向光ケーブ
ル中継装置の電気回路図、第２図乃至第６図は、
本考案が適用される１回線式光ケーブル通信回線
を例示するもので、第２図は、光ケーブル回線を
環状回線にして、自動制御システムに適用したブ
ロツク図、第３図は、親局のブロツク図、第４図
は、子局のブロツク図、第５図は、親局の要部を
具体的に示す電気回路図、第６図は、第４図に示
す双方向光電変換器の電気回路図である。
１……ホストコンピユータ、２Ａ，２Ｂ……親
局、３Ａ，３Ｂ……光ケーブル接続端子、４……
子局、５……アクチユエータ、６……光ケーブル
回線、７……光ケーブル中継部、８Ａ，８Ｂ……
光ケーブル接続端子、９Ａ，９Ｂ……ハーフミラ
ー、１０……データ引き渡しライン、１１……通
信回線、１２，２３……ＣＰＵ、１３，２４……
ＲＯＭ、１４，２５……ＲＡＭ、１５，２６……
入出力制御部、１６……通信制御部、１７……デ
ータ転送制御部、１８……デイジタル・アナログ
変換部、１９……計測表示部、２０……通信制御
部、２１……データ転送制御部、２２……光ケー
ブルインターフエイス部、２７……弁、２８，２
９……リミツトスイツチ、３０……モータ制御部
、３１……駆動モータ、３２……開度検出器、３
３……アナログ・デイジタル変換部、３４……通
信制御部、３６Ａ，３６Ｂ……双方向光電変換器
、３７……受光素子、３８……発光素子、３９…
…増幅器、４０……スイツチ素子、４１……デー
タ端子、４２……スイツチ素子、４３……ドライ
バ、４４……制御端子、４５Ａ，４５Ｂ，４６Ａ
，４６Ｂ……スイツチ素子、４７Ａ，４７Ｂ……
遮蔽板、４９Ａ，４９Ｂ……双方向光電変換器、
５０Ａ，５０Ｂ，５１Ａ，５１Ｂ，５３Ａ，５３
Ｂ……スイツチ素子、５２……オアゲート、５４
……遮蔽板、ＭＡ，ＭＢ……ハーフミラー、ＨＡ
，ＨＢ……受光素子、ＲＡ，ＲＢ，ＲＸ……受信
端子、ＴＡ，ＴＢ，ＴＸ……送信端子、Ｌ１，Ｌ
２……光、Ｌ３……光軸、ｌＡ，ｌＢ……光軸、
ｌＣ……反射光路。
FIG. 1 is an electrical circuit diagram of a bidirectional optical cable relay device showing an embodiment of the present invention applied to a single-line optical cable communication line, and FIGS. 2 to 6 are
This shows an example of a single-line optical cable communication line to which the present invention is applied. Fig. 2 is a block diagram of a ring-shaped optical cable line applied to an automatic control system, and Fig. 3 is a block diagram of a master station. , Fig. 4 is a block diagram of the slave station, Fig. 5 is an electric circuit diagram specifically showing the main parts of the master station, and Fig. 6 is an electric circuit diagram of the bidirectional photoelectric converter shown in Fig. 4. It is. 1...Host computer, 2A, 2B...Master station, 3A, 3B...Optical cable connection terminal, 4...
Slave station, 5... Actuator, 6... Optical cable line, 7... Optical cable relay section, 8A, 8B...
Optical cable connection terminal, 9A, 9B... Half mirror, 10... Data delivery line, 11... Communication line, 12, 23... CPU, 13, 24...
ROM, 14, 25...RAM, 15, 26...
Input/output control unit, 16...Communication control unit, 17...Data transfer control unit, 18...Digital/analog conversion unit, 19...Measurement display unit, 20...Communication control unit, 21...Data transfer control unit , 22...Optical cable interface section, 27...Valve, 28,2
9... Limit switch, 30... Motor control unit, 31... Drive motor, 32... Opening degree detector, 3
3... Analog-digital converter, 34... Communication control unit, 36A, 36B... Bidirectional photoelectric converter, 37... Light receiving element, 38... Light emitting element, 39...
...Amplifier, 40...Switch element, 41...Data terminal, 42...Switch element, 43...Driver, 44...Control terminal, 45A, 45B, 46A
, 46B...Switch element, 47A, 47B...
Shielding plate, 49A, 49B...bidirectional photoelectric converter,
50A, 50B, 51A, 51B, 53A, 53
B...Switch element, 52...Or gate, 54
...Shielding plate, MA, MB...Half mirror, HA
, HB... Light receiving element, RA, RB, RX... Receiving terminal, TA, TB, TX... Transmitting terminal, L 1 , L
2 ...Light, L3 ...Optical axis, lA, lB...Optical axis,
lC...Reflected optical path.
Claims (1)
発信局に設けた双方向光ケーブル中継部において
、光ケーブル中継部に導入した１対の光ケーブル
端部の両光路上に設けたハーフミラーと、各ハー
フミラーの一方の分岐光路上に設けた光信号伝送
方向検出用受光素子と備えてなる１回線式光ケー
ブル通信回線における双方向光ケーブル中継装置
。 (2) ハーフミラーが、両光路上に、相互の反射
光路を合致させて設けられている実用新案登録請
求の範囲第(1)項に記載の１回線式光ケーブル通
信回線における双方向光ケーブル中継装置。 (3) 受光素子が、ハーフミラーによつて分けら
れた分岐光路上に出没自在に設けられている実用
新案登録請求の範囲第(1)項又は第(2)項に記載の
１回線式光ケーブル通信回線における双方向光ケ
ーブル中継装置。[Scope of Claim for Utility Model Registration] (1) In a bidirectional optical cable relay section provided at each receiving and transmitting station in a single-line optical cable communication line, a bidirectional optical cable relay section installed on both optical paths of a pair of optical cable ends introduced into the optical cable relay section. 1. A bidirectional optical cable relay device for a single-line optical cable communication line, comprising: a half mirror, and a light receiving element for detecting the direction of optical signal transmission provided on one branch optical path of each half mirror. (2) A bidirectional optical cable relay device for a single-line optical cable communication line according to claim (1) of the utility model registration claim, in which half mirrors are provided on both optical paths so that their mutually reflected optical paths match. . (3) The single-line optical cable according to claim 1 or 2 of the utility model registration claim, in which the light-receiving element is provided on a branched optical path separated by a half mirror so that it can appear and disappear at will. Bidirectional optical cable relay equipment for communication lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987195775U JPH01100542U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987195775U JPH01100542U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100542U true JPH01100542U (en) | 1989-07-06 |
Family
ID=31486433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987195775U Pending JPH01100542U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100542U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880943A (en) * | 1981-11-06 | 1983-05-16 | Matsushita Electric Ind Co Ltd | Optical communication system |
| JPS6076831A (en) * | 1983-10-03 | 1985-05-01 | Fuji Electric Co Ltd | Loop type optical transmission system |
| JPS62118648A (en) * | 1985-11-19 | 1987-05-30 | Matsushita Electric Ind Co Ltd | Duplicated optical loop network |
-
1987
- 1987-12-25 JP JP1987195775U patent/JPH01100542U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880943A (en) * | 1981-11-06 | 1983-05-16 | Matsushita Electric Ind Co Ltd | Optical communication system |
| JPS6076831A (en) * | 1983-10-03 | 1985-05-01 | Fuji Electric Co Ltd | Loop type optical transmission system |
| JPS62118648A (en) * | 1985-11-19 | 1987-05-30 | Matsushita Electric Ind Co Ltd | Duplicated optical loop network |
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