JPS6052478B2 - Optical identification device for banknotes, etc. - Google Patents
Optical identification device for banknotes, etc.Info
- Publication number
- JPS6052478B2 JPS6052478B2 JP52070700A JP7070077A JPS6052478B2 JP S6052478 B2 JPS6052478 B2 JP S6052478B2 JP 52070700 A JP52070700 A JP 52070700A JP 7070077 A JP7070077 A JP 7070077A JP S6052478 B2 JPS6052478 B2 JP S6052478B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- elements
- printed matter
- receiving
- banknotes
- 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
Links
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
Description
【発明の詳細な説明】
本発明は紙幣等の印刷物識別装置に関し、発光素子よ
り紙幣等に光を照射してそれによつて生ずる透過光量若
しくは反射光量に基づいて紙幣等の適正を判定する光学
的識別装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printed matter identification device for banknotes, etc., which is an optical device that irradiates light from a light emitting element onto a banknote, etc. and determines the suitability of the banknote, etc. based on the amount of transmitted light or reflected light generated thereby. This invention relates to an identification device.
此程識別装置て問題となるのは発光素子及び発光素子
の温度変化そして経時変化によるドリフトであり、また
塵埃等の付着によつても特性の劣化が生じる。Problems with such identification devices include drift due to temperature changes and changes in the light emitting elements over time, as well as deterioration of characteristics due to adhesion of dust and the like.
そのために細かい調節及びたびたび清掃する必要があり
非常に煩わしいものとなつており、これを解決するには
高価な補償回路を具備しなければならなかつた。 以上
の点より本発明は一対の発光素子及び受光素子を二組ま
たはそれ以上設けた簡単な構成に依り、そのうちの一対
の受光強度によつて他のすべての発光素子の発光量を制
御し各々の受光素子の受光強度により紙幣等の適正を判
定することで前記ドリフト及び劣化にも確実な判定を行
ない得る装置を提供しようとするものてある。This requires detailed adjustment and frequent cleaning, which is very troublesome, and to solve this problem, an expensive compensation circuit must be provided. From the above points, the present invention relies on a simple configuration in which two or more sets of a pair of light emitting elements and light receiving elements are provided, and the amount of light emitted by all other light emitting elements is controlled by the received light intensity of one of the pairs. The present invention attempts to provide a device that can reliably determine the drift and deterioration by determining the suitability of banknotes or the like based on the light intensity received by the light receiving element.
以下、図面と共に一実施例を詳述する。 Hereinafter, one embodiment will be described in detail with reference to the drawings.
図は、一対の発光素子及び受光素子を三組配設して受
光素子ＩＡと受光素子２Ａ、発光素子ＩＢと受光素子２
Ｂ）発光素子ＩＣと受光素子２Ｃを夫々対に構成し、発
光素子ＩＡと受光素子２Ａが基本の対となつて、発光素
子ＩＢ及びＩＣの発光量が制御される。The figure shows three pairs of light emitting elements and light receiving elements arranged in three sets: a light receiving element IA and a light receiving element 2A, and a light emitting element IB and a light receiving element 2.
B) The light-emitting element IC and the light-receiving element 2C are configured as a pair, and the light-emitting element IA and the light-receiving element 2A form a basic pair, and the amount of light emitted by the light-emitting elements IB and IC is controlled.
他からの影響を受けずに自由に点灯している発光素子Ｉ
Ａよりの光を受けて受光素子２Ａは信号を生じ、増巾器
３で増巾した後に比較器４、５に出力する。ゲート回路
６、７は通常開放して比較器４、５の出力は増巾器８、
９に入力するようになつているが、紙幣等の印刷物が到
来すると閉止するものである。したがつて比較器４の出
力はコンデンサ１０を充電すると共に増巾器８で増巾さ
れた後発光素子ＩＢを点灯せしめ、そして発光素子ＩＢ
の光量は受光素子２Ｂで検出されその検出々力は増巾器
１２で増巾されて比較器４に入力する。同様にして比較
器５の出力によつてコンデンサ１１が充填され且つ発光
素子１Ｃが点灯し、受光素子２Ｃの検出々力は増巾器１
３で増巾されて比較器５に入力する。斯かる構成により
増巾器３，１２，１３の出力Ａ，Ｂ，Ｃは各々等しい状
態にある。ここで鑑別すべき紙幣等の印刷物が到来する
とゲート回路６，７は閉止するが、増巾器８，９は入力
インピーダンスが高いために夫々コンデンサ１０，１１
とでゲート回路６，７が閉止する直前の電位を記憶して
おり、したがつて発光素子１Ｂ，１Ｃは印刷物が到来す
る直前の光量で発光できる。そして、印刷物が各対の発
光素子１Ａ，１Ｂ，１Ｃ及び受光素子２Ａ，２Ｂ，２Ｃ
間を遮ると、その印刷模様に応じた反射光量若しくは透
過光量が受光素子２Ａ，２Ｂ，２Ｃにて検出されて検出
量に応じた出力がＡ，Ｂ，Ｃに生ずる。図示されていな
いが鑑別回路は、出力Ａ，Ｂ，Ｃの割合を算出し、この
割合が適正であるかを判定して識別を行なうものである
。以上詳述してきた本発明に依ると、一対の発光素子及
び受光素子を基準とし、他の対の受光素子が基準の受光
素子と等しい検出々力が得られるようにその発光素子を
基準受光素子の検出々力に基づいて点灯させるものであ
る。Light-emitting element I that lights up freely without being influenced by others
Upon receiving the light from A, the light receiving element 2A generates a signal, which is amplified by the amplifier 3 and then output to the comparators 4 and 5. The gate circuits 6 and 7 are normally open and the outputs of the comparators 4 and 5 are connected to the amplifier 8.
9, but it closes when printed matter such as banknotes arrives. Therefore, the output of the comparator 4 charges the capacitor 10 and is amplified by the amplifier 8, and then lights up the light emitting element IB.
The amount of light is detected by the light receiving element 2B, and its detection power is amplified by the amplifier 12 and input to the comparator 4. Similarly, the capacitor 11 is filled with the output of the comparator 5, the light emitting element 1C is lit, and the detection power of the light receiving element 2C is increased by the amplifier 1.
The signal is amplified by 3 and input to the comparator 5. With this configuration, the outputs A, B, and C of the amplifiers 3, 12, and 13 are in an equal state. When a printed matter such as a banknote to be discriminated arrives, the gate circuits 6 and 7 are closed, but since the input impedance of the amplifiers 8 and 9 is high, the capacitors 10 and 11 are connected to the amplifiers 8 and 9, respectively.
The potential immediately before the gate circuits 6 and 7 are closed is stored, and therefore the light emitting elements 1B and 1C can emit light with the amount of light immediately before the printed matter arrives. Then, the printed matter is each pair of light emitting elements 1A, 1B, 1C and light receiving elements 2A, 2B, 2C.
When the space is interrupted, the amount of reflected light or transmitted light corresponding to the printed pattern is detected by the light receiving elements 2A, 2B, and 2C, and outputs corresponding to the detected amounts are generated at A, B, and C. Although not shown, the discrimination circuit calculates the ratio of outputs A, B, and C, and determines whether this ratio is appropriate for identification. According to the present invention described in detail above, a pair of light-emitting element and a light-receiving element is used as a reference, and the light-emitting element is set as a reference light-receiving element so that the other pair of light-receiving elements can obtain the same detection force as the reference light-receiving element. The light is turned on based on the detection power of the sensor.
そして、紙幣等の印刷物の到来にて、両者の関係を遮断
しても少なくとも通過を完了するまでの間は他の発光素
子が到来直前と同様な光度で点灯しうるように電位を記
憶する素子を配設し、印刷物の通過に基づく各受光素子
の検出々力に基いてその適正を判定するものである。し
たがつて複数組の発光素子及び受光素子を備えた光学的
識別装置に於いて各組の受光素子が等しい検出々力を生
じるように構成したことにより、ドリフト等の変化が基
準側素子の間で生じた場合は新しい基準値で各組の素子
間が統一されまた他の組の素子間で生じた場合は基準側
と一致するように補正することができ、常に正確な判定
を行なうことができる。Then, even if the relationship between the two is cut off when a printed matter such as a banknote arrives, the other light emitting elements store the potential so that they can be lit at the same luminous intensity as just before the arrival, at least until the passage is completed. The suitability of each light-receiving element is determined based on the detection power of each light-receiving element based on the passage of the printed material. Therefore, in an optical identification device equipped with multiple sets of light-emitting elements and light-receiving elements, by configuring each set of light-receiving elements to produce an equal detection force, changes such as drift can be minimized between the reference-side elements. If this occurs, the elements in each set are unified using the new reference value, and if it occurs between the elements in another set, it can be corrected to match the reference side, ensuring accurate judgment at all times. can.
図は本発明の電気回路図を示す。
主な図番の説明、１Ａ，１Ｂ，１Ｃ・・・・・・発光素
子、２Ａ，２Ｂ，２Ｃ・・・・・受光素子。The figure shows an electrical circuit diagram of the invention. Explanation of main drawing numbers: 1A, 1B, 1C... Light emitting element, 2A, 2B, 2C... Light receiving element.
Claims (1)
て紙幣等の印刷物に前記発光素子により光を照射し該発
光素子に対応する前記受光素子の受光電圧に基づき印刷
物を識別する装置において、供給電源に応じて自由に発
光するよう基準側に設定した１つの前記発光素子に対応
する前記受光素子の受光電圧と他の前記受光素子の受光
電圧とを比較して電圧差に応じた出力を発生する比較回
路と、印刷物が装置内に挿入されていない状態では前記
比較回路の比較出力を供給するゲート回路と、該ゲート
回路から供給される比較出力によつて充電されるコンデ
ンサと、前記ゲート回路から供給される比較出力及び印
刷物が投入された状態では前記コンデンサの充電々圧に
応じた電流を基準側以外の前記発光素子に供給する制御
回路とから成る紙幣等の光学的識別装置。1. In an apparatus that includes at least two pairs of light-emitting elements and light-receiving elements, the light-emitting elements illuminate printed matter such as banknotes, and the printed matter is identified based on the light-receiving voltage of the light-receiving element corresponding to the light-emitting element. The light receiving voltage of the light receiving element corresponding to one of the light emitting elements set on the reference side so as to emit light freely according to the light emitting element is compared with the light receiving voltage of the other light receiving elements, and an output is generated according to the voltage difference. a comparison circuit, a gate circuit that supplies a comparison output of the comparison circuit when no printed matter is inserted into the apparatus, a capacitor that is charged by the comparison output supplied from the gate circuit, and a capacitor that is charged by the comparison output supplied from the gate circuit; An optical identification device for banknotes, etc., comprising a comparison output to be supplied and a control circuit that supplies a current corresponding to the charging voltage of the capacitor to the light emitting elements other than the reference side when a printed matter is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52070700A JPS6052478B2 (en) | 1977-06-14 | 1977-06-14 | Optical identification device for banknotes, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52070700A JPS6052478B2 (en) | 1977-06-14 | 1977-06-14 | Optical identification device for banknotes, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS545496A JPS545496A (en) | 1979-01-16 |
| JPS6052478B2 true JPS6052478B2 (en) | 1985-11-19 |
Family
ID=13439141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52070700A Expired JPS6052478B2 (en) | 1977-06-14 | 1977-06-14 | Optical identification device for banknotes, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6052478B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61294274A (en) * | 1985-06-20 | 1986-12-25 | Tokyo Keiki Co Ltd | Fluid control valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR69124B (en) * | 1980-02-06 | 1982-05-03 | Mars Inc |
-
1977
- 1977-06-14 JP JP52070700A patent/JPS6052478B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61294274A (en) * | 1985-06-20 | 1986-12-25 | Tokyo Keiki Co Ltd | Fluid control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS545496A (en) | 1979-01-16 |
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