JPH0360005U - - Google Patents
Info
- Publication number
- JPH0360005U JPH0360005U JP11948089U JP11948089U JPH0360005U JP H0360005 U JPH0360005 U JP H0360005U JP 11948089 U JP11948089 U JP 11948089U JP 11948089 U JP11948089 U JP 11948089U JP H0360005 U JPH0360005 U JP H0360005U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving
- light emitting
- selection means
- elements
- 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
- 230000003321 amplification Effects 0.000 claims 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims 5
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Description
第１図は本考案の構成を示す機能ブロツク図で
ある。第２図ないし第４図は本考案の第１実施例
を示し、第２図は回路図、第３図は初期設定のた
めの手順を示すフローチヤート、第４図はマイク
ロコンピユータの動作を示すフローチヤート、第
５図は本考案の第２実施例を示す第１図相当図で
ある。また、第６図は従来のエリアセンサを示す
ブロツク図である。
図面中、１１……投光素子、１２……マイクロ
コンピユータ（記憶手段を含む）、１３……マト
リツクス回路（投光用選択手段）、１４……受光
素子、１５……受光用選択回路（受光用選択手段
）、１６……受光アンプ、２３，３３……比較回
路（比較手段）である。
FIG. 1 is a functional block diagram showing the configuration of the present invention. Figures 2 to 4 show a first embodiment of the present invention, Figure 2 is a circuit diagram, Figure 3 is a flowchart showing the procedure for initial setting, and Figure 4 shows the operation of the microcomputer. The flowchart, FIG. 5, is a diagram corresponding to FIG. 1 showing a second embodiment of the present invention. Further, FIG. 6 is a block diagram showing a conventional area sensor. In the drawings, 11... Light emitting element, 12... Microcomputer (including storage means), 13... Matrix circuit (light emitting selection means), 14... Light receiving element, 15... Light receiving selection circuit (light receiving 16...light-receiving amplifier, 23, 33...comparison circuit (comparison means).
Claims (1)
数の投光素子から１つの投光素子を選択する投光
用選択手段と、選択された投光素子に対応する受
光素子からの信号を選択する受光用選択手段と、
この受光用選択手段により選択された受光信号を
所定の増幅率で増幅する受光アンプと、この受光
アンプにより増幅された受光信号のレベルと所定
の基準レベルとを比較する比較手段とを備えたも
のにおいて、前記受光アンプにおける前記各受光
素子毎の受光信号の適正な増幅率を記憶する記憶
手段と、前記選択手段による選択に併せて前記記
憶手段から当該受光素子に対応する増幅率を読み
出してこれらを前記受光アンプに与える増幅率選
択手段とを設けてなるエリアセンサ。 ２ 複数組の投光素子および受光素子と、前記複
数の投光素子から１つの投光素子を選択する投光
用選択手段と、選択された投光素子に対応する受
光素子からの信号を選択する受光用選択手段と、
この受光用選択手段により選択された受光信号を
増幅する受光アンプと、この受光アンプにより増
幅された受光信号のレベルと基準レベルとを比較
して検出エリアへの物体の侵入の判断を行う比較
手段とを備えたものにおいて、前記比較手段にお
ける前記各受光素子毎の基準レベルを記憶する記
憶手段と、前記選択手段による選択に併せて前記
記憶手段から当該受光素子に対応する基準レベル
を読み出してこれらを前記比較手段に与える基準
レベル選択手段とを設けてなるエリアセンサ。[Claims for Utility Model Registration] 1. A plurality of sets of light emitting elements and light receiving elements, a light emitting selection means for selecting one light emitting element from the plurality of light emitting elements, and corresponding to the selected light emitting element. light-receiving selection means for selecting a signal from the light-receiving element;
A light-receiving amplifier that amplifies the light-receiving signal selected by the light-receiving selection means at a predetermined amplification factor, and a comparison means that compares the level of the light-receiving signal amplified by the light-receiving amplifier with a predetermined reference level. a storage means for storing an appropriate amplification factor of the light-receiving signal for each of the light-receiving elements in the light-receiving amplifier; and a storage means for reading the amplification factors corresponding to the light-receiving elements from the storage means in conjunction with the selection by the selection means. and an amplification factor selection means for applying amplification factor to the light receiving amplifier. 2. A plurality of sets of light emitting elements and light receiving elements, a light emitting selection means for selecting one light emitting element from the plurality of light emitting elements, and selecting a signal from the light receiving element corresponding to the selected light emitting element. a selection means for receiving light;
A light-receiving amplifier that amplifies the light-receiving signal selected by the light-receiving selection means, and a comparison means that compares the level of the light-receiving signal amplified by the light-receiving amplifier with a reference level to determine whether an object has entered the detection area. a storage means for storing a reference level for each of the light receiving elements in the comparison means; and a storage means for reading the reference level corresponding to the light receiving element from the storage means in conjunction with the selection by the selection means. and reference level selection means for providing a reference level to the comparison means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11948089U JPH0360005U (en) | 1989-10-12 | 1989-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11948089U JPH0360005U (en) | 1989-10-12 | 1989-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0360005U true JPH0360005U (en) | 1991-06-13 |
Family
ID=31667604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11948089U Pending JPH0360005U (en) | 1989-10-12 | 1989-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0360005U (en) |
-
1989
- 1989-10-12 JP JP11948089U patent/JPH0360005U/ja active Pending