JPH0180548U - - Google Patents
Info
- Publication number
- JPH0180548U JPH0180548U JP1987176627U JP17662787U JPH0180548U JP H0180548 U JPH0180548 U JP H0180548U JP 1987176627 U JP1987176627 U JP 1987176627U JP 17662787 U JP17662787 U JP 17662787U JP H0180548 U JPH0180548 U JP H0180548U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical fiber
- switch means
- detection means
- detecting
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例の構成を示すシステ
ム図、第２図は上記実施例中における断線検出回
路の構成を示す回路図、第３図は上記断線検出回
路中の判断回路の論理回路である。
８，８′……電球（発光体）、２２，２６……
スイツチ、２８，２８′……光フアイバ、３２…
…判断回路（制御手段）、５０……フオトダイオ
ード（光検出手段）。
Figure 1 is a system diagram showing the configuration of an embodiment of the present invention, Figure 2 is a circuit diagram showing the configuration of the disconnection detection circuit in the above embodiment, and Figure 3 is the logic of the judgment circuit in the disconnection detection circuit. It is a circuit. 8, 8'... Light bulb (luminous body), 22, 26...
Switch, 28, 28'...Optical fiber, 32...
...judgment circuit (control means), 50...photodiode (light detection means).
Claims (1)
と、上記発光体を必要に応じて発光せしめるスイ
ツチ手段と、上記光フアイバの他端部に配設され
同光フアイバを介して伝達される光の有無を検出
する光検出手段と、上記スイツチ手段と上記光検
出手段とが接続され上記スイツチ手段が上記発光
体を発光せしめる状態で且つ上記光検出手段が光
を検出していないときに断線信号を出力する制御
手段とを備えたことを特徴とする車両用断線検出
装置。 an optical fiber disposed at one end near the light emitter; a switch means for causing the light emitter to emit light as needed; and an optical fiber disposed at the other end of the optical fiber for transmitting light through the optical fiber. A light detection means for detecting the presence or absence of light, the switch means and the light detection means are connected, and the wire is disconnected when the switch means causes the light emitting body to emit light and the light detection means is not detecting light. A disconnection detection device for a vehicle, comprising a control means for outputting a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176627U JPH0180548U (en) | 1987-11-19 | 1987-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176627U JPH0180548U (en) | 1987-11-19 | 1987-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0180548U true JPH0180548U (en) | 1989-05-30 |
Family
ID=31468351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987176627U Pending JPH0180548U (en) | 1987-11-19 | 1987-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0180548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012126228A (en) * | 2010-12-15 | 2012-07-05 | Panasonic Corp | Device for monitoring light |
-
1987
- 1987-11-19 JP JP1987176627U patent/JPH0180548U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012126228A (en) * | 2010-12-15 | 2012-07-05 | Panasonic Corp | Device for monitoring light |
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