JPS647431U - - Google Patents
Info
- Publication number
- JPS647431U JPS647431U JP10110987U JP10110987U JPS647431U JP S647431 U JPS647431 U JP S647431U JP 10110987 U JP10110987 U JP 10110987U JP 10110987 U JP10110987 U JP 10110987U JP S647431 U JPS647431 U JP S647431U
- Authority
- JP
- Japan
- Prior art keywords
- failure
- light
- signal
- light receiving
- failure determination
- 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 4
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Electronic Switches (AREA)
Description
図面は、何れもこの考案の一実施例を示し、第
１図ａは、この実施例に係るラインセンサの電源
投入時に、故障判別を行なう場合の動作を説明す
るフロー図、第１図ｂは、同ラインセンサの故障
判別指令信号入力時に故障判別を行なう場合の動
作を説明するフロー図、第２図は、同ラインセン
サの概略構成を説明する図、第３図は、同ライン
センサの故障判別指令信号入力の一例を説明する
図、第４図は、同ラインセンサの回路構成を説明
する図である。
Ｌ１〜Ｌ８：ＬＥＤ、Ｐ１〜Ｐ８：ホトトラン
ジスタ、７：コンパレータ、９：ＣＰＵ。
The drawings all show one embodiment of this invention, and FIG. 1a is a flowchart illustrating the operation when fault determination is performed when the line sensor according to this embodiment is powered on, and FIG. , a flowchart explaining the operation when fault determination is performed when a fault determination command signal is input to the same line sensor, FIG. 2 is a diagram explaining the schematic configuration of the same line sensor, and FIG. FIG. 4, which is a diagram illustrating an example of inputting a discrimination command signal, is a diagram illustrating a circuit configuration of the line sensor. L1-L8: LED, P1-P8: Phototransistor, 7: Comparator, 9: CPU.
Claims (1)
素子よりの光を受ける受光素子と、この受光素子
の受光信号を処理する受光信号処理手段とを備え
てなる光電センサにおいて、 電源投入時及び／または故障判別指令信号入力
時に、前記投光素子に投光させ、前記受光素子の
受光レベルが所定のレベルに達したか否かにより
故障を判別し、故障と判別された場合に故障信号
を出力する故障判別手段を備えたことを特徴とす
る光電センサ。 (2) 前記検出領域内に検出物体が無い場合に信
号を出力するセンサを、この検出領域に隣接して
配置し、このセンサの出力信号を故障判別指令信
号として、前記故障判別手段が故障を判別する実
用新案登録請求の範囲第１項記載の光電センサ。[Scope of Claim for Utility Model Registration] (1) A light emitting element that emits light onto a detection area, a light receiving element that receives light from the light emitting element, and a light receiving signal processing means that processes the light receiving signal of the light receiving element. In the photoelectric sensor provided, when the power is turned on and/or when a failure determination command signal is input, the light emitting element is caused to emit light, and a failure is determined based on whether the light reception level of the light receiving element has reached a predetermined level. A photoelectric sensor characterized by comprising a failure determination means that outputs a failure signal when a failure is determined. (2) A sensor that outputs a signal when there is no detection object within the detection area is arranged adjacent to this detection area, and the output signal of this sensor is used as a failure determination command signal to cause the failure determination means to detect a failure. A photoelectric sensor according to claim 1, which is a utility model for discrimination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10110987U JPS647431U (en) | 1987-06-30 | 1987-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10110987U JPS647431U (en) | 1987-06-30 | 1987-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647431U true JPS647431U (en) | 1989-01-17 |
Family
ID=31329800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10110987U Pending JPS647431U (en) | 1987-06-30 | 1987-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647431U (en) |
-
1987
- 1987-06-30 JP JP10110987U patent/JPS647431U/ja active Pending
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