JPH0236996B2 - - Google Patents
Info
- Publication number
- JPH0236996B2 JPH0236996B2 JP57221560A JP22156082A JPH0236996B2 JP H0236996 B2 JPH0236996 B2 JP H0236996B2 JP 57221560 A JP57221560 A JP 57221560A JP 22156082 A JP22156082 A JP 22156082A JP H0236996 B2 JPH0236996 B2 JP H0236996B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- paper
- paper sheet
- weight setting
- receiving 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/121—Apparatus characterised by sensor details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/181—Testing mechanical properties or condition, e.g. wear or tear
- G07D7/185—Detecting holes or pores
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/181—Testing mechanical properties or condition, e.g. wear or tear
- G07D7/187—Detecting defacement or contamination, e.g. dirt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
- B65H2553/41—Photoelectric detectors
- B65H2553/416—Array arrangement, i.e. row of emitters or detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1912—Banknotes, bills and cheques or the like
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は搬送される紙葉の印刷パターンを光
学的に検出して紙葉の判別を行う紙葉類判別装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper sheet discriminating device that optically detects a printed pattern on a conveyed paper sheet and discriminates the paper sheet.
〔従来の技術〕
紙幣等の真偽、種類を判別する紙幣判別装置は
銀行等において広く利用されており、また、その
判別方法としては、搬送される紙幣に光を照射し
てこの反射光または透過光を検出し、この検出結
果から紙幣の印刷パターンを認識するという方法
がとられる。すなわち、反射光または透過光の変
化のパターン（以下光学パターンという）と、予
め記憶された基準となる光学パターンとを比較
し、この比較結果から紙幣の種類、真偽を判別す
る方法が用いられている。この場合、紙幣の光学
パターンを所定の局部的なチエツクゾーンにおい
て検出するとともに、“１”／“０”の２値デー
タで現し、この２値データを論理回路によつて判
定する方法も開発されている（特公昭50―
33880）。[Prior Art] Banknote discriminating devices that determine the authenticity and type of banknotes are widely used in banks and other institutions. A method is used in which transmitted light is detected and the printed pattern of the banknote is recognized from the detection result. In other words, a method is used in which a pattern of changes in reflected light or transmitted light (hereinafter referred to as an optical pattern) is compared with a pre-stored reference optical pattern, and the type and authenticity of the banknote are determined from the comparison results. ing. In this case, a method has been developed in which the optical pattern of the banknote is detected in a predetermined local check zone, expressed as binary data of "1"/"0", and this binary data is judged by a logic circuit. (Tokuko Showa 50-
33880).
ところで、従来の紙幣判別装置においては透過
光または反射光を１個もしくは数個の受光素子を
用いて局部的に検出しているため、搬送される紙
幣の位置がずれると検出誤差が発生した。このた
め、搬送紙幣の位置ずれを防止するためのガイド
板を設けたり、紙幣の位置に応じて受光素子を切
り換る必要があるが、ガイド板を設けた場合は紙
幣の挿入（装置外部からの利用者による挿入）が
しにくくなるという問題が発生し、また、受光素
子を切り換える場合は構成が複雑になるという問
題が発生した。一方、紙幣の位置ずれや搬送の乱
れの影響を除くために、光学レンズを用いて搬送
紙幣の部分像を、受光素子上に適度にボケるよう
に結像させるという方法があるが、この方法にお
いては、光学系がほこり等の影響を受け易く、ま
た、光学レンズと受光素子との距離（光学経路）
が長くなるので装置を小型化しにくいという欠点
があつた。
By the way, in conventional banknote discriminating devices, transmitted light or reflected light is locally detected using one or several light receiving elements, and therefore, a detection error occurs if the position of the transported banknote shifts. For this reason, it is necessary to provide a guide plate to prevent the transferred banknotes from shifting, or to switch the light-receiving element depending on the position of the banknote. A problem occurred in that it became difficult for the user to insert the light receiving element (insertion by the user), and a problem occurred in that the configuration became complicated when switching the light receiving element. On the other hand, in order to eliminate the effects of misalignment of banknotes and disturbances in conveyance, there is a method in which a partial image of the conveyed banknote is formed on a light-receiving element so as to be moderately blurred using an optical lens. , the optical system is easily affected by dust, etc., and the distance between the optical lens and the light receiving element (optical path)
This has the disadvantage that it is difficult to miniaturize the device because the length is long.
この発明は上述した事情に鑑み構成が簡単で小
型化に適し、しかも、紙葉の挿入がし易くほこり
等の影響も受けない紙葉類判別装置を提供するこ
とを目的とする。 In view of the above-mentioned circumstances, it is an object of the present invention to provide a paper sheet discrimination device which has a simple structure, is suitable for miniaturization, allows easy insertion of paper sheets, and is not affected by dust or the like.
この発明は、上記問題点を解決するために、搬
送される紙葉を照射し、この透過光を検出して前
記紙葉の判別を行う紙葉類判別装置において、
前記透過光を受光する一連の密接した多数の受
光素子を、それらの受光面が前記紙葉に接するよ
うに、かつ前記紙葉の搬送路の全幅にわたつて直
交するように１列に配置するとともに、
前記各受光素子にそれぞれ接続され、かつ演算
増幅器とこの演算増幅器に接続されたフイードバ
ツク抵抗及び出力抵抗とをそれぞれ有し、これら
の抵抗の値をそれぞれ設定することにより、前記
各受光素子の出力信号に対応してなだらかな山形
の曲線を形成するようにそれぞれ個別に重みを付
ける多数の重み設定部と、前記各重み設定部に接
続され、かつ前記各重み設定部の出力信号の総和
をとる総和検出部とを具備することを特徴として
いる。
In order to solve the above-mentioned problems, the present invention provides a paper sheet discriminating device that irradiates a conveyed paper sheet and detects the transmitted light to discriminate the paper sheet. A large number of closely spaced light-receiving elements are arranged in a row so that their light-receiving surfaces are in contact with the sheet of paper and are perpendicular to each other across the entire width of the conveyance path of the sheet of paper, and each of the light-receiving elements is They each have an operational amplifier and a feedback resistor and an output resistor connected to the operational amplifier, respectively, and by setting the values of these resistors, a smooth signal can be generated corresponding to the output signal of each of the light receiving elements. The weight setting section includes a large number of weight setting sections that individually weight each weight setting section so as to form a mountain-shaped curve, and a sum detection section that is connected to each of the weight setting sections and sums the output signals of each of the weight setting sections. It is characterized by
前記重み設定部のフイードバツク抵抗及び出力
抵抗を適宜選択して、なだらかな山形の曲線を形
成するように重み付けをすることにより、紙葉の
位置ずれがあつた場合でも、両側部部分の変動の
影響は少ないので、安定した判別が行われる。ま
た、受光素子の受光面が搬送中の紙葉に接するよ
うに配置されていることにより、紙葉によつて前
記受光素子の受光面がセルフクリーニングされ、
従つて、ホコリ、チリ等の影響を受けず、常に正
確な検出が行われる。
By appropriately selecting the feedback resistance and output resistance of the weight setting section and weighting them to form a gentle mountain-shaped curve, even if the paper sheet is misaligned, the influence of fluctuations on both sides can be reduced. Since there are few, stable discrimination is performed. Furthermore, since the light-receiving surface of the light-receiving element is arranged so as to be in contact with the paper leaf being conveyed, the light-receiving surface of the light-receiving element is self-cleaned by the paper leaf.
Therefore, accurate detection is always performed without being affected by dust, dust, etc.
〔実施例〕
以下図面を参照したこの発明の実施例について
説明する。[Embodiments] Examples of the present invention will be described below with reference to the drawings.
第１図はこの発明の一実施例である紙幣判別装
置の要部の構成を示す平面図である。 FIG. 1 is a plan view showing the configuration of a main part of a banknote discriminating device which is an embodiment of the present invention.
この図において１は紙幣の搬送路であり、紙幣
はこの搬送路に沿つて図面左から右へ搬送され
る。２はホトダイオードph１〜phnを直線的に配
置して成るホトダイオードアレイ（以下単にアレ
イと称す）であり、搬送路１の幅と同じ長さを有
し、この搬送路１に直交して設けられている。第
２図はアレイ２，紙幣３および光源４の位置関係
４の位置関係を示す概略構成図であり、この図に
示すように光源４の照射光は紙幣３を透過した後
アレイ２に受光され、また、紙幣３はアレイ２の
上面（受光面）に接して搬送される。この場合、
光源４は紙幣３を一様に照射するようになつてい
る。 In this figure, reference numeral 1 denotes a banknote conveyance path, and banknotes are conveyed from left to right in the drawing along this conveyance path. 2 is a photodiode array (hereinafter simply referred to as an array) consisting of photodiodes ph1 to phn arranged linearly, and has the same length as the width of the conveyance path 1, and is provided orthogonally to the conveyance path 1. There is. FIG. 2 is a schematic configuration diagram showing the positional relationship 4 among the array 2, the banknote 3, and the light source 4. As shown in this figure, the irradiation light from the light source 4 is transmitted through the banknote 3 and then received by the array 2. Moreover, the banknote 3 is conveyed in contact with the upper surface (light-receiving surface) of the array 2 . in this case,
The light source 4 is designed to uniformly illuminate the banknotes 3.
次に、第３図はこの実施例の電気的構成を示す
回路図であり、図において第１図と対応する部分
には同一の符号が付してある。 Next, FIG. 3 is a circuit diagram showing the electrical configuration of this embodiment, and in the diagram, parts corresponding to those in FIG. 1 are given the same reference numerals.
この図において５―１〜５―ｎは各々演算増幅
器であり、各々の反転入力端子がホトダイオード
ph１〜phnを順方向に介して接地されるととも
に、フイードバツク抵抗ra1〜raoを介して各々の
出力端子に接続されており、また、各々の非反転
入力端子が接地されている。この場合、演算増幅
器５―１〜５―ｎの出力電圧V1〜Voは、ホトダ
イオードph１〜phnが出力する光電流を各々I1〜
Ioとすると、次式で示される。 In this figure, 5-1 to 5-n are each operational amplifiers, and each inverting input terminal is a photodiode.
It is grounded via ph1 to phn in the forward direction, and connected to each output terminal via feedback resistors ra1 to rao , and each non-inverting input terminal is grounded. In this case, the output voltages V 1 to V o of the operational amplifiers 5-1 to 5-n correspond to the photocurrents output by the photodiodes ph1 to phn, respectively, I 1 to V o.
Assuming I o , it is expressed by the following formula.
Vi＝−Ii・rai …(1)
（ただし、ｉ＝１，２，…ｎ）
そして、電圧V1〜Voは各々出力抵抗rb1〜rbo
を介して演算増幅器６の反転入力端子に印加され
る。この演算増幅器６は非反転入力端子が接地さ
れ、反転入力端子が抵抗rcを介して出力端子に接
続され、また、出力端子が端子７に接続されてい
る。この演算増幅器６の出力電圧V0は図から分
るように次式で示される。 Vi=-Ii・rai...(1) (However, i=1, 2,...n) And the voltages V 1 to V o are the output resistances rb 1 to rb o, respectively.
is applied to the inverting input terminal of operational amplifier 6 via . The operational amplifier 6 has a non-inverting input terminal connected to ground, an inverting input terminal connected to an output terminal via a resistor rc, and an output terminal connected to a terminal 7. As can be seen from the figure, the output voltage V 0 of the operational amplifier 6 is expressed by the following equation.
V0＝o
〓i=1
（−rc／rbi・Vi）
＝o
〓i=1
rc／rbi・Ii・rai …(2)
そして、この実施例においては、ホトダイオー
ドph１〜pbnの出力信号I1〜Io（光電流）に、例え
ば第４図イ，ロに示すような重み付けを行う。第
４図イは搬送路１の幅方向に並ぶホトダイオード
ph１〜phnの位置を示しており、同図ロは同図イ
に示すホトダイオードph１〜phnの各位置に対応
する重みを示している。この第４図イ，ロに示す
ように、搬送路１の幅方向中央部付近の重みが最
も大きくなつており、幅方向中央部から両側部へ
ゆくにしたがつて重みが小さくなつているなだら
かな山形の曲線とされている。そしてこの重みの
設定は、第３図および第２式に示すように、抵抗
ra1〜raoもしくは抵抗rb1〜rboの値を適切に設定
することにより、行うことができる。 V 0 = o 〓 i=1 (−rc/rbi・Vi) = o 〓 i=1 rc/rbi・Ii・rai (2) And, in this embodiment, the output signal I 1 of the photodiodes ph1 to pbn ~ Io (photocurrent) is weighted as shown in FIG. 4, A and B, for example. Figure 4 A shows photodiodes lined up in the width direction of transport path 1.
The positions of the photodiodes ph1 to phn are shown in FIG. As shown in Figure 4 A and B, the weight near the center in the width direction of the transport path 1 is the largest, and the weight decreases from the center in the width direction to both sides. It is said to be a mountain-shaped curve. The setting of this weight is determined by the resistance as shown in Figure 3 and the second equation.
This can be done by appropriately setting the values of ra 1 to ra o or the resistances rb 1 to rb o .
このように、幅方向中央部の重みを両側部に対
して大きくとると、搬送される紙幣の位置が幅方
向に変動した場合でも両側部にあるホトダイオー
ドの出力信号の重み付けが小さいので、この部分
のホトダイオードの出力変動が電圧V0に与える
影響は小さい。このため、電圧V0はほとんど変
動せず、したがつて、実質的に紙幣の位置ずれを
無視することができる。また、紙幣周縁の一部が
ちぎれている（欠落している）場合でも、上述の
場合と同じ理由で出力電圧V0の変動は少ない。
このように、出力電圧V0は紙幣の搬送状態等に
影響されず、したがつて、紙幣の印刷パターンを
忠実に反映する。 In this way, if the weight of the central part in the width direction is larger than that of both sides, even if the position of the transported banknote changes in the width direction, the weighting of the output signals of the photodiodes on both sides is small, so this part The effect of the output fluctuation of the photodiode on the voltage V 0 is small. Therefore, the voltage V 0 hardly changes, and therefore, the positional shift of the banknote can be substantially ignored. Further, even if a part of the periphery of the banknote is torn (missing), the output voltage V 0 will not fluctuate much for the same reason as in the above case.
In this way, the output voltage V 0 is not affected by the conveyance state of the banknote, etc., and therefore faithfully reflects the printing pattern of the banknote.
なお、この実施例においては第２図に示すよう
に紙幣３がアレイ２の上面（受光面）を擦りなが
ら搬送されるので、紙幣３によりアレイ２（すな
わちホトダイオードph１〜phn）がセルフクリー
ニングされ、これにより、ホコリ，チリ等の影響
を受けずに常に正確な検出を行うことができる。 In this embodiment, as shown in FIG. 2, the banknotes 3 are conveyed while rubbing the upper surface (light-receiving surface) of the array 2, so that the banknotes 3 self-clean the array 2 (that is, the photodiodes ph1 to phn). Thereby, accurate detection can always be performed without being affected by dust, dust, etc.
以上説明したように、本発明は、搬送される紙
葉を照射し、この透過光を検出して前記紙葉の判
別を行う紙葉類判別装置において、
前記透過光を受光する一連の密接した多数の受
光素子を、それらの受光面が前記紙葉に接するよ
うに、かつ前記紙葉の搬送路の全幅にわたつて直
交するように１列に配置するとともに、
前記各受光素子にそれぞれ接続され、かつ演算
増幅器とこの演算増幅器に接続されたフイードバ
ツク抵抗及び出力抵抗とをそれぞれ有し、これら
の抵抗の値をそれぞれ設定することにより、前記
各受光素子の出力信号に対応してなだらかな山形
の曲線を形成するようにそれぞれ個別に重みを付
ける多数の重み設定部と、前記各重み設定部に接
続され、かつ前記各重み設定部の出力信号の総和
をとる総和検出部とを具備したものであるから、
前記重み設定部のフイードバツク抵抗及び出力抵
抗を適宜選択して、なだらかな山形の曲線を形成
するように重み付けをすることにより、紙葉の周
縁の一部が欠落している場合、あるいは紙葉の位
置ずれがあつた場合でも安定して、正確な判別を
行うことができ、しかも光学レンズ等を用いない
ので小型化が容易となる利点が得られる。その
上、搬送されている紙葉が受光素子の受光面に接
するようにされているから、受光素子の受光面が
紙葉によつてクリーニングされることにより、ホ
コリ、ゴミ等の影響を受けず、長期間使用しても
常に正確な検出を行うことができ、さらに、紙葉
の位置を厳密に規制するガイド等が不要なので紙
葉が挿入し易いという利点も得られる。
As explained above, the present invention provides a paper sheet discriminating device that irradiates a conveyed paper sheet and detects the transmitted light to discriminate the paper sheet. A large number of light-receiving elements are arranged in a row so that their light-receiving surfaces are in contact with the sheet of paper and are perpendicular to each other across the entire width of the conveyance path of the sheet of paper, and each of the light-receiving elements is connected to each of the light-receiving elements. , and has an operational amplifier, and a feedback resistor and an output resistor connected to the operational amplifier, and by setting the values of these resistors, a gentle mountain shape is created corresponding to the output signal of each of the light receiving elements. It is equipped with a large number of weight setting sections that individually weight each weight setting section so as to form a curve, and a summation detection section that is connected to each of the weight setting sections and sums up the output signals of each of the weight setting sections. because there is,
By appropriately selecting the feedback resistance and output resistance of the weight setting section and weighting the paper to form a gentle mountain-shaped curve, it is possible to detect when a part of the periphery of the paper sheet is missing or when the paper sheet is Even if there is a positional shift, stable and accurate discrimination can be performed, and since no optical lens or the like is used, there is an advantage that miniaturization is easy. Furthermore, since the paper leaf being conveyed is in contact with the light-receiving surface of the light-receiving element, the light-receiving surface of the light-receiving element is cleaned by the paper leaf and is not affected by dust, dirt, etc. Even when used for a long period of time, accurate detection can always be performed, and furthermore, there is an advantage that paper sheets can be easily inserted since there is no need for a guide or the like to strictly control the position of the paper sheet.
第１図はこの発明の一実施例である紙幣判別装
置の要部の構成を示す平面図、第２図は第１図に
示すアレイ２と光源との位置関係を示す概略構成
図、第３図は同実施例の電気的構成を示す回路
図、第４図イは搬送路幅方向に並ぶホトダイオー
ドph１〜phnの位置を示す図、第４図ロは同図イ
に示すホトダイオードph１〜phnに対応する重み
を示す図である。
１…搬送路、２…ホトダイオードアレイ、３…
紙幣（紙葉）、５―１〜５―ｎ…演算増幅器（重
み設定部）、６…演算増幅器（総和検出部）、ph
１〜phn…ホトダイオード（受光素子）、ra1〜rao
…フイードバツク抵抗（重み設定部）、rb1〜rbo
…出力抵抗（重み設定部）、rc…抵抗（総和検出
部）。
FIG. 1 is a plan view showing the configuration of the main parts of a bill discriminating device which is an embodiment of the present invention, FIG. 2 is a schematic configuration diagram showing the positional relationship between the array 2 shown in FIG. 1 and the light source, and FIG. The figure is a circuit diagram showing the electrical configuration of the same embodiment, FIG. FIG. 3 is a diagram showing corresponding weights. 1... Conveyance path, 2... Photodiode array, 3...
Banknotes (paper sheets), 5-1 to 5-n... operational amplifier (weight setting section), 6... operational amplifier (sum detection section), ph
1~phn...Photodiode (light receiving element), ra 1 ~ra o
...Feedback resistance (weight setting section), rb 1 ~ rb o
...output resistance (weight setting section), rc...resistance (sum detection section).
Claims (1)
して前記紙葉の判別を行う紙葉類判別装置におい
て、 前記透過光を受光する一連の密接した多数の受
光素子を、それらの受光面が前記紙葉に接するよ
うに、かつ前記紙葉の搬送路の全幅にわたつて直
交するように１列に配置するとともに、 前記各受光素子にそれぞれ接続され、かつ演算
増幅器とこの演算増幅器に接続されたフイードバ
ツク抵抗及び出力抵抗とをそれぞれ有し、これら
の抵抗の値をそれぞれ設定することにより、前記
各受光素子の出力信号に対応してなだらかな山形
の曲線を形成するようにそれぞれ個別に重みを付
ける多数の重み設定部と、前記各重み設定部に接
続され、かつ前記各重み設定部の出力信号の総和
をとる総和検出部とを具備したことを特徴とする
紙葉類判別装置。[Scope of Claims] 1. A paper sheet discrimination device that irradiates a conveyed paper sheet and detects the transmitted light to discriminate the paper sheet, comprising: a series of a number of closely spaced light receivers that receive the transmitted light; The elements are arranged in a row so that their light-receiving surfaces are in contact with the sheet of paper and are perpendicular to each other across the entire width of the conveyance path of the sheet of paper, and are connected to each of the light-receiving elements, and are connected to each of the light-receiving elements, and are connected to each of the light-receiving elements, and It has an amplifier, and a feedback resistor and an output resistor connected to the operational amplifier, and by setting the values of these resistors, a gentle mountain-shaped curve is formed corresponding to the output signal of each of the light receiving elements. The present invention is characterized by comprising a large number of weight setting sections that individually weight each weight setting section, and a summation detection section that is connected to each of the weight setting sections and that calculates the sum of the output signals of each of the weight setting sections. Paper sheet discrimination device.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57221560A JPS59111589A (en) | 1982-12-17 | 1982-12-17 | Sheet paper discriminator |
| DE19833345251 DE3345251A1 (en) | 1982-12-17 | 1983-12-14 | Device for testing paper sheets |
| GB08333413A GB2132756A (en) | 1982-12-17 | 1983-12-15 | Paper sheet discriminating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57221560A JPS59111589A (en) | 1982-12-17 | 1982-12-17 | Sheet paper discriminator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59111589A JPS59111589A (en) | 1984-06-27 |
| JPH0236996B2 true JPH0236996B2 (en) | 1990-08-21 |
Family
ID=16768635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57221560A Granted JPS59111589A (en) | 1982-12-17 | 1982-12-17 | Sheet paper discriminator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS59111589A (en) |
| DE (1) | DE3345251A1 (en) |
| GB (1) | GB2132756A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4947441A (en) * | 1988-05-20 | 1990-08-07 | Laurel Bank Machine Co., Ltd. | Bill discriminating apparatus |
| DE59208632D1 (en) * | 1992-01-31 | 1997-07-24 | Mars Inc | Device for classifying a pattern, in particular a banknote or a coin |
| EP0680909A1 (en) * | 1994-05-03 | 1995-11-08 | Grapha-Holding Ag | Method and device for checking the similarity of sheets especially of printed sheets |
| WO2003063098A1 (en) * | 2002-01-26 | 2003-07-31 | Eurosystems Limited | Counterfeit detector for bank notes |
| US20070278138A1 (en) * | 2004-06-04 | 2007-12-06 | De La Rue International Limited | Document Sorting Machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5286145A (en) * | 1976-01-14 | 1977-07-18 | Hitachi Ltd | Oscillating circuit for constant voltage device for transistor chopper |
| JPS5585992A (en) * | 1978-12-18 | 1980-06-28 | Gretag Ag | Examine method of printing quality |
| JPS56137478A (en) * | 1980-03-28 | 1981-10-27 | Sanyo Vending Mach Mfg Co Ltd | Discrimination for printed matter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT311097B (en) * | 1972-03-21 | 1973-10-25 | Gao Ges Automation Org | Method for measuring the degree of soiling of banknotes or the like. |
| JPS5237091A (en) * | 1975-09-18 | 1977-03-22 | Glory Ltd | Currency distinguishing method |
| CH615031A5 (en) * | 1976-04-30 | 1979-12-28 | Gretag Ag | |
| DE2929846A1 (en) * | 1979-07-23 | 1981-03-12 | Siemens AG, 1000 Berlin und 8000 München | OPTO-ELECTRONIC TESTING SYSTEM FOR AUTOMATIC CHECKING OF CHARACTERISTICS, THEIR INTERMEDIATE PRODUCTS AND PRINTING TOOLS |
-
1982
- 1982-12-17 JP JP57221560A patent/JPS59111589A/en active Granted
-
1983
- 1983-12-14 DE DE19833345251 patent/DE3345251A1/en not_active Ceased
- 1983-12-15 GB GB08333413A patent/GB2132756A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5286145A (en) * | 1976-01-14 | 1977-07-18 | Hitachi Ltd | Oscillating circuit for constant voltage device for transistor chopper |
| JPS5585992A (en) * | 1978-12-18 | 1980-06-28 | Gretag Ag | Examine method of printing quality |
| JPS56137478A (en) * | 1980-03-28 | 1981-10-27 | Sanyo Vending Mach Mfg Co Ltd | Discrimination for printed matter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2132756A (en) | 1984-07-11 |
| GB8333413D0 (en) | 1984-01-25 |
| DE3345251A1 (en) | 1984-06-20 |
| JPS59111589A (en) | 1984-06-27 |
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