WO2020217789A1 - Paper sheet processing apparatus and paper sheet processing method - Google Patents
Paper sheet processing apparatus and paper sheet processing method Download PDFInfo
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- WO2020217789A1 WO2020217789A1 PCT/JP2020/011943 JP2020011943W WO2020217789A1 WO 2020217789 A1 WO2020217789 A1 WO 2020217789A1 JP 2020011943 W JP2020011943 W JP 2020011943W WO 2020217789 A1 WO2020217789 A1 WO 2020217789A1
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- paper
- paper leaf
- transported
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- transport direction
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- 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
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
- G07D11/10—Mechanical details
- G07D11/16—Handling of valuable papers
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- 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
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- 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
- G07D7/16—Testing the dimensions
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- 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
- G07D7/16—Testing the dimensions
- G07D7/164—Thickness
Definitions
- a passing sensor such as an optical sensor for detecting passing paper sheets is placed in the width direction of the paper leaf transport path 2
- a method of detecting the distance between two sheets of paper that are continuously conveyed by providing up to three sheets and using these passage sensors.
- the passage sensor When the distance between media is detected by the passage sensor as described above, when at least one of the two sheets of paper is skewed, the front end or the rear end of the skewed paper leaves protrudes from the position of the passage sensor. Therefore, the actual inter-media distance is shorter than the inter-media distance detected by the passage sensor. Therefore, when using a passing sensor, a distance with a margin smaller than the inter-media distance detected by the passing sensor, that is, a distance smaller than the inter-media distance detected by the passing sensor is calculated as the estimated inter-media distance, and this estimation is performed. The transfer abnormality of paper sheets is judged from the distance between the media.
- the estimated inter-media distance is smaller than the predetermined distance even though the actual inter-media distance is greater than or equal to the predetermined distance required for branching. Sometimes those paper leaves were rejected.
- the present invention is characterized in that, in the above invention, the sensor is an optical line sensor.
- the senor is a thickness detection sensor, detects the distribution of the thickness of the conveyed paper leaves, and the interval information acquisition unit is the thickness of the first paper leaves.
- the rear end of the first paper leaf is detected from the distribution of the above, and the front end of the second paper leaf is detected from the thickness distribution of the second paper leaf.
- the paper leaf processing apparatus includes a branch portion for switching a transport destination of paper leaves transported through the transport path, and two sheets continuously transported through the transport path.
- the branch portion is compared with the storage unit that stores the reference interval information in the transport direction of the paper sheets and the interval information acquired by the interval information acquisition unit with the reference interval information stored in the storage unit. It is characterized by further including a branch control unit for controlling.
- the interval information is the distance in the transport direction between the rear end of the first paper leaf and the front end of the second paper leaf. It is a feature.
- the transmitted image means an image based on the intensity distribution of light transmitted through the paper sheets by irradiating the paper sheets with light.
- the reflected image means an image based on the intensity distribution of the light reflected by the paper leaves by irradiating the paper leaves with light.
- the optical line sensor acquires information (for example, optical information) on the entire surface of each banknote transported along the transport path, and an image including the entire surface of each banknote (preferably a transparent image). To generate.
- the information on the entire surface of the banknote acquired by the optical line sensor includes not only the optical information (optical features) on the entire surface of the banknote, but also the position information of each detection point (each pixel) and the optical information at each detection point (each pixel). It also includes information about the time when the data was acquired.
- the rear end of the bill BN1 in the transport direction and the front end of the bill BN2 in the transport direction are detected.
- the spacing information which is the information regarding the spacing in the transport direction of the bills BN1 and BN2 is acquired.
- the interval information is the distance in the transport direction between two bills that are continuously transported (for example, the distance in the transport direction between the rear end of the bill BN1 and the front end of the bill BN2). It may be a time interval in which the banknotes pass through the same place (for example, the time from when the optical line sensor detects the rear end of the banknote BN1 to when the front end of the banknote BN2 is detected).
- the interval information is the smallest interval in the transport direction between the preceding banknote BN1 and the banknote BN2 transported following the banknote BN1. More specifically, it corresponds to the distance between the position of the rear end of the bill BN1 in the transport direction and the position of the front end of the bill BN2 in the transport direction.
- the banknote processing device 200 has, for example, the configurations shown in FIGS. 2A and 2B.
- the banknote processing device 200 includes a hopper 210 capable of placing a plurality of banknotes, a feeding section 211 for feeding out the banknotes placed on the hopper 210 one by one, and a transport path for transporting the banknotes delivered from the feeding section 211. 212, a bill identification unit 100 having a detection unit (not shown in FIG. 1) such as an optical line sensor and performing bill identification processing, and a stacking unit for accumulating normal bills identified by the bill identification unit 100.
- a reject unit 214 for accumulating abnormal banknotes that do not meet the predetermined conditions
- a display unit 215 for displaying information input to the banknote processing device 200, the processing result, etc., and a banknote along the transport path 212.
- It is provided with a transport unit (not shown in FIG. 1) that transports the banknotes one by one.
- the transport unit includes a plurality of transport means such as rollers and a drive device such as a motor that drives the transport means.
- the bill processing device 200 is further provided at a branch portion of the transport path 212, and is indicated by a branch portion 216 that switches the transport destination of banknotes in the transport path 212 to either the accumulating portion 213 or the reject portion 214, and a triangular mark in the drawing.
- Each position is provided with a passage sensor 217 that detects the state of transporting banknotes in the device 200.
- a passage sensor 217 As the passage sensor 217, a transmission type or reflection type optical sensor is provided. From the detection results of these passing sensors 217, the shape and skew state of the bill may be estimated.
- the branch portion 216 is composed of a plurality of branch claws 216a, a support shaft 216b to which the branch claw 216a is fixed, a drive device (not shown in FIG. 1) for rotating the support shaft 216b in both forward and reverse directions, and the like. .. By rotating the support shaft 216b by the drive device, the branch claw 216a can swing between the first and second positions.
- the banknote identification unit 100 built into such a banknote processing device 200
- a plurality of banknotes placed on the hopper 210 can be continuously processed into a fake ticket, a loss ticket, or an uncertain authenticity ticket.
- the determined banknotes can be returned to the reject unit 214 and sorted.
- the bill identification unit 100 acquires interval information in the transport direction of the two bills that are continuously transported, and the bill processing device 200 is acquired by the bill identification unit 100. Based on the interval information, it is determined whether or not the interval between the banknotes meets the criteria. Then, if it is satisfied, it is determined that the transfer abnormality has not occurred in those banknotes, and the transfer destination of the banknotes is switched to the accumulation unit 213 at the branch portion 216.
Abstract
The present invention provides a paper sheet processing apparatus and a paper sheet processing method with which it is possible to more accurately ascertain information relating to the interval between two sheets being continuously transported. This paper sheet processing apparatus is equipped with: a transport path along which paper sheets are transported; sensors that are arranged in a line in a direction intersecting the transport direction of the paper sheets being transported along the transport path and acquire information relating to the entire surface of the paper sheets being transported; and an interval information acquisition unit that detects, on the basis of the output data of the sensors, the rear end of a first paper sheet in the transport direction and the front end of a second paper sheet being transported subsequent to the first paper sheet in the transport direction and acquires information relating to the interval between the first paper sheet and the second paper sheet in the transport direction on the basis of the detection results of the rear end and the front end.
Description
本発明は、紙葉類処理装置及び紙葉類処理方法に関する。より詳しくは、連続して搬送される２枚の紙葉類の搬送方向における間隔情報を取得するのに好適な紙葉類処理装置及び紙葉類処理方法に関する。
The present invention relates to a paper leaf processing apparatus and a paper leaf processing method. More specifically, the present invention relates to a paper leaf processing apparatus and a paper leaf processing method suitable for acquiring interval information in a transport direction of two sheets of paper that are continuously transported.
従来、紙幣の入出金処理等を行う紙葉類処理装置として様々なタイプのものが知られている。例えば、紙葉類処理装置の筐体内には、紙葉類を１枚ずつ搬送する搬送部が設けられている。また、紙葉類処理装置の筐体内において、搬送部により搬送される紙葉類の種類（紙幣の場合は金種）、真偽、正損等の識別を行う紙葉類識別部が設けられている。また、紙葉類識別部は、紙葉類の搬送状態を検出する。具体的には、紙葉類識別部は、連続して搬送される２枚の紙葉類間の搬送方向における距離（以下、媒体間距離）を検出する。そして、検出した媒体間距離が所定の距離よりも小さい場合には、それらの紙葉類に搬送異常が生じていると判断し、それらの紙葉類の搬送先を分岐部でリジェクト部に切り替えてリジェクトする。媒体間距離が小さすぎると紙葉類の搬送先を１枚ずつ分岐部で切り替えることができなくなるためである。
Conventionally, various types of paper leaf processing devices for depositing and withdrawing banknotes are known. For example, a transport unit for transporting paper sheets one by one is provided in the housing of the paper leaf processing device. Further, in the housing of the paper leaf processing device, a paper leaf identification unit is provided to identify the type (denomination in the case of banknotes), authenticity, correctness, etc. of the paper sheets transported by the transport unit. ing. In addition, the paper leaf identification unit detects the transport state of the paper leaf. Specifically, the paper leaf identification unit detects the distance between two sheets of paper that are continuously transported in the transport direction (hereinafter, the distance between media). Then, when the detected distance between the media is smaller than a predetermined distance, it is determined that a transport abnormality has occurred in those paper sheets, and the transport destination of those paper sheets is switched to the reject section at the branch portion. Reject. This is because if the distance between the media is too small, it becomes impossible to switch the transport destinations of paper sheets one by one at the branch portion.
ここで、媒体間距離を検出する方法としては、例えば、特許文献１に記載のように、通過する紙葉類を検出する光センサ等の通過センサを紙葉類の搬送路の幅方向に２～３個設け、これらの通過センサにより、連続して搬送される２枚の紙葉類間の距離を検出する方法が知られている。
Here, as a method of detecting the distance between media, for example, as described in Patent Document 1, a passing sensor such as an optical sensor for detecting passing paper sheets is placed in the width direction of the paper leaf transport path 2 There is known a method of detecting the distance between two sheets of paper that are continuously conveyed by providing up to three sheets and using these passage sensors.
媒体間距離を上述のように通過センサで検出する場合、２枚の紙葉類の少なくとも一方が斜行すると、斜行した紙葉類の前端又は後端が通過センサの配置位置から突出することになるため、通過センサが検出した媒体間距離よりも実際の媒体間距離は短くなってしまう。そのため、通過センサを使用する場合は、通過センサが検出した媒体間距離よりもマージンをとった距離、すなわち通過センサが検出した媒体間距離よりも小さな距離を推定媒体間距離として算出し、この推定媒体間距離から紙葉類の搬送異常を判断している。
When the distance between media is detected by the passage sensor as described above, when at least one of the two sheets of paper is skewed, the front end or the rear end of the skewed paper leaves protrudes from the position of the passage sensor. Therefore, the actual inter-media distance is shorter than the inter-media distance detected by the passage sensor. Therefore, when using a passing sensor, a distance with a margin smaller than the inter-media distance detected by the passing sensor, that is, a distance smaller than the inter-media distance detected by the passing sensor is calculated as the estimated inter-media distance, and this estimation is performed. The transfer abnormality of paper sheets is judged from the distance between the media.
しかしながら、このように媒体間距離を推定する方法では、実際の媒体間距離が分岐のために必要な所定の距離以上であるにも関わらず、推定媒体間距離が所定の距離より小さいために、それらの紙葉類がリジェクトされてしまうことがあった。
However, in the method of estimating the inter-media distance in this way, the estimated inter-media distance is smaller than the predetermined distance even though the actual inter-media distance is greater than or equal to the predetermined distance required for branching. Sometimes those paper leaves were rejected.
連続して通過する２枚の紙葉類の時間間隔を通過センサで検出し、これらの紙葉類が同じ場所を通過する時間間隔を推定することによって紙葉類の搬送異常を判断する場合も、同様の課題が発生し得る。
In some cases, the passage sensor detects the time interval between two sheets of paper that pass in succession, and estimates the time interval during which these sheets pass through the same place to determine the transfer abnormality of the sheets. , Similar challenges can occur.
このように、従来は、連続して搬送される２枚の紙葉類間の搬送方向における距離や、それらの紙葉類が同じ場所を通過する時間間隔等、連続して搬送される２枚の紙葉類の間隔情報をより正確に把握するという点で改善の余地があった。
In this way, conventionally, the distance between two sheets of paper that are continuously transported in the transport direction, the time interval at which the paper sheets pass through the same place, and the like, the two sheets that are continuously transported There was room for improvement in terms of more accurately grasping the spacing information of the paper leaves.
本発明は、上記現状に鑑みてなされたものであり、連続して搬送される２枚の紙葉類の間隔情報をより正確に把握することが可能な紙葉類処理装置及び紙葉類処理方法を提供することを目的とするものである。
The present invention has been made in view of the above-mentioned current situation, and is a paper leaf processing apparatus and a paper leaf processing device capable of more accurately grasping the interval information of two sheets of paper that are continuously transported. It is intended to provide a method.
上述した課題を解決し、目的を達成するために、本発明は、紙葉類処理装置であって、紙葉類が搬送される搬送路と、前記搬送路を搬送される紙葉類の搬送方向に交差する方向にライン状に設けられ、搬送される紙葉類全面の情報を取得するセンサと、前記センサの出力データに基づいて、第１の紙葉類の前記搬送方向における後端と、前記第１の紙葉類に後続して搬送される第２の紙葉類の前記搬送方向における前端とをそれぞれ検出し、前記後端及び前記前端の検出結果に基づいて、前記第１の紙葉類及び前記第２の紙葉類の前記搬送方向における間隔情報を取得する間隔情報取得部と、を備えることを特徴とする。
In order to solve the above-mentioned problems and achieve the object, the present invention is a paper leaf processing apparatus, which is a transport path for transporting paper leaves and a transport path for transporting the paper leaves to be transported through the transport path. A sensor provided in a line in a direction intersecting the directions to acquire information on the entire surface of the paper sheets to be transported, and a rear end of the first paper sheets in the transport direction based on the output data of the sensor. , The front end of the second paper leaf to be transported following the first paper leaf in the transport direction, respectively, and based on the detection results of the rear end and the front end, the first It is characterized by comprising an interval information acquisition unit for acquiring interval information of paper sheets and the second paper leaf in the transport direction.
また、本発明は、上記発明において、前記センサは、搬送される紙葉類の画像を取得し、前記間隔情報取得部は、前記第１の紙葉類の画像から前記第１の紙葉類の前記後端を検出するとともに、前記第２の紙葉類の画像から前記第２の紙葉類の前記前端を検出することを特徴とする。
Further, in the present invention, in the above invention, the sensor acquires an image of the paper leaves to be conveyed, and the interval information acquisition unit obtains the image of the first paper leaves from the image of the first paper leaves. It is characterized in that the rear end of the second paper leaf is detected and the front end of the second paper leaf is detected from the image of the second paper leaf.
また、本発明は、上記発明において、前記センサは、光学ラインセンサであることを特徴とする。
Further, the present invention is characterized in that, in the above invention, the sensor is an optical line sensor.
また、本発明は、上記発明において、前記センサは、厚み検知センサであり、搬送される紙葉類の厚みの分布を検出し、前記間隔情報取得部は、前記第１の紙葉類の厚みの分布から前記第１の紙葉類の前記後端を検出するとともに、前記第２の紙葉類の厚みの分布から前記第２の紙葉類の前記前端を検出することを特徴とする。
Further, in the present invention, in the above invention, the sensor is a thickness detection sensor, detects the distribution of the thickness of the conveyed paper leaves, and the interval information acquisition unit is the thickness of the first paper leaves. The rear end of the first paper leaf is detected from the distribution of the above, and the front end of the second paper leaf is detected from the thickness distribution of the second paper leaf.
また、本発明は、上記発明において、前記紙葉類処理装置は、前記搬送路を搬送される紙葉類の搬送先を切り替える分岐部と、前記搬送路を連続して搬送される２枚の紙葉類の前記搬送方向における基準間隔情報を記憶する記憶部と、前記間隔情報取得部で取得された前記間隔情報を前記記憶部に記憶された前記基準間隔情報と比較し、前記分岐部を制御する分岐制御部と、を更に備えることを特徴とする。
Further, in the present invention, in the above-mentioned invention, the paper leaf processing apparatus includes a branch portion for switching a transport destination of paper leaves transported through the transport path, and two sheets continuously transported through the transport path. The branch portion is compared with the storage unit that stores the reference interval information in the transport direction of the paper sheets and the interval information acquired by the interval information acquisition unit with the reference interval information stored in the storage unit. It is characterized by further including a branch control unit for controlling.
また、本発明は、上記発明において、前記間隔情報は、前記第１の紙葉類の前記後端と前記第２の紙葉類の前記前端との間の前記搬送方向における距離であることを特徴とする。
Further, in the present invention, the interval information is the distance in the transport direction between the rear end of the first paper leaf and the front end of the second paper leaf. It is a feature.
また、本発明は、上記発明において、前記間隔情報は、前記センサが前記後端を検出してから前記前端を検出するまでの時間であることを特徴とする。
Further, the present invention is characterized in that, in the above invention, the interval information is the time from when the sensor detects the rear end to when the front end is detected.
また、本発明は、紙葉類処理方法であって、搬送路を搬送される紙葉類の搬送方向に交差する方向にライン状に設けられたセンサにより、搬送される紙葉類全面の情報を取得する工程と、前記センサの出力データに基づいて、第１の紙葉類の前記搬送方向における後端と、前記第１の紙葉類に後続して搬送される第２の紙葉類の前記搬送方向における前端とをそれぞれ検出し、前記後端及び前記前端の検出結果に基づいて、前記第１の紙葉類及び前記第２の紙葉類の前記搬送方向における間隔情報を取得する工程と、を備えることを特徴とする。
Further, the present invention is a method for processing paper leaves, and information on the entire surface of the paper leaves to be transported by a sensor provided in a line in a direction intersecting the transport direction of the paper leaves to be transported along the transport path. Based on the step of acquiring the above and the output data of the sensor, the rear end of the first paper leaf in the transport direction and the second paper leaf to be transported following the first paper leaf. The front end in the transport direction is detected, and the interval information of the first paper leaf and the second paper leaf in the transport direction is acquired based on the detection results of the rear end and the front end, respectively. It is characterized by having a process.
本発明の紙葉類処理装置及び紙葉類処理方法によれば、連続して搬送される２枚の紙葉類の間隔情報をより正確に把握することができる。
According to the paper leaf processing apparatus and the paper leaf processing method of the present invention, it is possible to more accurately grasp the interval information of two sheets of paper that are continuously transported.
以下、本発明に係る紙葉類処理装置及び紙葉類処理方法の好適な実施形態を、図面を参照しながら説明する。本発明の対象となる紙葉類としては、紙幣、小切手、商品券、手形、帳票、有価証券、カード状媒体等の様々な紙葉類が適用可能であるが、以下においては、紙幣を対象とする装置及び方法を例として、本発明を説明する。なお、以下の説明は、紙葉類処理装置及び紙葉類処理方法の一例である。
Hereinafter, preferred embodiments of the paper leaf processing apparatus and the paper leaf processing method according to the present invention will be described with reference to the drawings. As the paper leaves to be the subject of the present invention, various paper leaves such as banknotes, checks, gift certificates, bills, forms, securities, card-like media, etc. can be applied, but in the following, banknotes are targeted. The present invention will be described by exemplifying the apparatus and method described above. The following description is an example of a paper leaf processing apparatus and a paper leaf processing method.
本明細書において、透過画像とは、紙葉類に光を照射して当該紙葉類を透過させた光の強度分布に基づく画像を意味する。また、反射画像とは、紙葉類に光を照射して当該紙葉類で反射された光の強度分布に基づく画像を意味する。
In the present specification, the transmitted image means an image based on the intensity distribution of light transmitted through the paper sheets by irradiating the paper sheets with light. Further, the reflected image means an image based on the intensity distribution of the light reflected by the paper leaves by irradiating the paper leaves with light.
＜本実施形態の概要＞
まず、図１を用いて、本実施形態の概要について説明する。図１に示すように、本実施形態では、光学ラインセンサにより、搬送路を搬送される各紙幣全面の情報（例えば光学情報）を取得し、各紙幣全面を含む画像（好適には透過画像）を生成する。光学ラインセンサによって取得される紙幣全面の情報には、紙幣全面の光学情報（光学的特徴）のみならず、各検出点（各画素）の位置情報や、各検出点（各画素）で光学情報を取得した時刻に関する情報等も含まれる。また、連続して搬送される２枚の紙幣ＢＮ１及びＢＮ２の画像ＩＭＧ１及びＩＭＧ２から、紙幣ＢＮ１の搬送方向における後端と、紙幣ＢＮ２の搬送方向における前端とをそれぞれ検出する。そして、紙幣ＢＮ１の後端及び紙幣ＢＮ２の前端の検出結果に基づいて、紙幣ＢＮ１及びＢＮ２の搬送方向における間隔に関する情報である間隔情報を取得する。これにより、光センサ等の通過センサを用いる場合に比べて、２枚の紙幣ＢＮ１及びＢＮ２間の間隔をより正確に検出することができる。したがって、マージンの考慮が不要となるため、２枚の紙幣間の間隔が原因でリジェクトされる紙幣の枚数を削減することができる。 <Outline of this embodiment>
First, the outline of the present embodiment will be described with reference to FIG. As shown in FIG. 1, in the present embodiment, the optical line sensor acquires information (for example, optical information) on the entire surface of each banknote transported along the transport path, and an image including the entire surface of each banknote (preferably a transparent image). To generate. The information on the entire surface of the banknote acquired by the optical line sensor includes not only the optical information (optical features) on the entire surface of the banknote, but also the position information of each detection point (each pixel) and the optical information at each detection point (each pixel). It also includes information about the time when the data was acquired. Further, from the images IMG1 and IMG2 of the two bills BN1 and BN2 that are continuously transported, the rear end of the bill BN1 in the transport direction and the front end of the bill BN2 in the transport direction are detected. Then, based on the detection results of the rear end of the bill BN1 and the front end of the bill BN2, the spacing information which is the information regarding the spacing in the transport direction of the bills BN1 and BN2 is acquired. As a result, the distance between the two bills BN1 and BN2 can be detected more accurately than when a passage sensor such as an optical sensor is used. Therefore, since it is not necessary to consider the margin, the number of banknotes rejected due to the space between the two banknotes can be reduced.
まず、図１を用いて、本実施形態の概要について説明する。図１に示すように、本実施形態では、光学ラインセンサにより、搬送路を搬送される各紙幣全面の情報（例えば光学情報）を取得し、各紙幣全面を含む画像（好適には透過画像）を生成する。光学ラインセンサによって取得される紙幣全面の情報には、紙幣全面の光学情報（光学的特徴）のみならず、各検出点（各画素）の位置情報や、各検出点（各画素）で光学情報を取得した時刻に関する情報等も含まれる。また、連続して搬送される２枚の紙幣ＢＮ１及びＢＮ２の画像ＩＭＧ１及びＩＭＧ２から、紙幣ＢＮ１の搬送方向における後端と、紙幣ＢＮ２の搬送方向における前端とをそれぞれ検出する。そして、紙幣ＢＮ１の後端及び紙幣ＢＮ２の前端の検出結果に基づいて、紙幣ＢＮ１及びＢＮ２の搬送方向における間隔に関する情報である間隔情報を取得する。これにより、光センサ等の通過センサを用いる場合に比べて、２枚の紙幣ＢＮ１及びＢＮ２間の間隔をより正確に検出することができる。したがって、マージンの考慮が不要となるため、２枚の紙幣間の間隔が原因でリジェクトされる紙幣の枚数を削減することができる。 <Outline of this embodiment>
First, the outline of the present embodiment will be described with reference to FIG. As shown in FIG. 1, in the present embodiment, the optical line sensor acquires information (for example, optical information) on the entire surface of each banknote transported along the transport path, and an image including the entire surface of each banknote (preferably a transparent image). To generate. The information on the entire surface of the banknote acquired by the optical line sensor includes not only the optical information (optical features) on the entire surface of the banknote, but also the position information of each detection point (each pixel) and the optical information at each detection point (each pixel). It also includes information about the time when the data was acquired. Further, from the images IMG1 and IMG2 of the two bills BN1 and BN2 that are continuously transported, the rear end of the bill BN1 in the transport direction and the front end of the bill BN2 in the transport direction are detected. Then, based on the detection results of the rear end of the bill BN1 and the front end of the bill BN2, the spacing information which is the information regarding the spacing in the transport direction of the bills BN1 and BN2 is acquired. As a result, the distance between the two bills BN1 and BN2 can be detected more accurately than when a passage sensor such as an optical sensor is used. Therefore, since it is not necessary to consider the margin, the number of banknotes rejected due to the space between the two banknotes can be reduced.
本実施形態において、間隔情報は、連続して搬送される２枚の紙幣間の搬送方向における距離（例えば、紙幣ＢＮ１の後端と紙幣ＢＮ２の前端との間の搬送方向における距離）であってもよいし、それらの紙幣が同じ場所を通過する時間間隔（例えば、光学ラインセンサが紙幣ＢＮ１の後端を検出してから紙幣ＢＮ２の前端を検出するまでの時間）であってもよい。
In the present embodiment, the interval information is the distance in the transport direction between two bills that are continuously transported (for example, the distance in the transport direction between the rear end of the bill BN1 and the front end of the bill BN2). It may be a time interval in which the banknotes pass through the same place (for example, the time from when the optical line sensor detects the rear end of the banknote BN1 to when the front end of the banknote BN2 is detected).
なお、間隔情報とは、図１に示したように、先行する紙幣ＢＮ１と、紙幣ＢＮ１に後続して搬送される紙幣ＢＮ２との間の搬送方向における最も小さい間隔である。より詳細には、紙幣ＢＮ１の後端の搬送方向における位置と、紙幣ＢＮ２の前端の搬送方向における位置との間の間隔に相当する。
As shown in FIG. 1, the interval information is the smallest interval in the transport direction between the preceding banknote BN1 and the banknote BN2 transported following the banknote BN1. More specifically, it corresponds to the distance between the position of the rear end of the bill BN1 in the transport direction and the position of the front end of the bill BN2 in the transport direction.
＜紙幣処理装置の構成＞
次に、図２及び３を用いて、本実施形態に係る紙幣処理装置の構成について説明する。本実施形態に係る紙幣処理装置２００は、例えば、図２（ａ）及び（ｂ）に示す構成を有する。紙幣処理装置２００は、複数の紙幣を載置可能なホッパ２１０と、ホッパ２１０に載置された紙幣を１枚ずつ繰り出す繰出部２１１と、繰出部２１１から繰り出された紙幣が搬送される搬送路２１２と、光学ラインセンサ等の検出部（図１では図示せず）を有し、紙幣の識別処理を行う紙幣識別部１００と、紙幣識別部１００で識別された正常な紙幣を集積する集積部２１３と、所定条件を満たさない異常な紙幣を集積するリジェクト部２１４と、紙幣処理装置２００に入力された情報や、処理された結果等を表示する表示部２１５と、紙幣を搬送路２１２に沿って１枚ずつ搬送する搬送部（図１では図示せず）と、を備える。搬送部は、複数のローラ等の搬送手段と、搬送手段を駆動する、モータ等の駆動装置とを有している。紙幣処理装置２００は更に、搬送路２１２の分岐箇所に設けられ、搬送路２１２における紙幣の搬送先を集積部２１３又はリジェクト部２１４のいずれかに切り替える分岐部２１６と、図中の三角印で示される各位置に、装置２００内における紙幣の搬送状態を検知する通過センサ２１７とを備えている。通過センサ２１７としては、透過型又は反射型の光センサが設けられている。これらの通過センサ２１７の検知結果から、紙幣の形状と斜行状態を推定してもよい。分岐部２１６は、複数の分岐爪２１６ａと、分岐爪２１６ａが固定される支軸２１６ｂと、支軸２１６ｂを正逆両方向に回転させる駆動装置（図１では図示せず）等から構成されている。駆動装置により支軸２１６ｂを回転することにより、分岐爪２１６ａは、第１及び第２の位置の間で揺動可能となっている。紙幣識別部１００をこのような紙幣処理装置２００に内蔵して利用することにより、ホッパ２１０に載置された複数の紙幣を連続して処理し、偽券、損券又は真偽不確定券と判定された紙幣をリジェクト部２１４に返却し、分別することができる。また、紙幣識別部１００は、連続して搬送される２枚の紙幣の画像に基づいて、それらの紙幣の搬送方向における間隔情報を取得し、紙幣処理装置２００は、紙幣識別部１００で取得された間隔情報に基づき、それらの紙幣の間隔が基準を満たしているか否かを判定する。そして、満たしている場合には、それらの紙幣に搬送異常が生じていないと判断し、それらの紙幣の搬送先を分岐部２１６で集積部２１３に切り替える。 <Structure of banknote processing device>
Next, the configuration of the banknote processing apparatus according to the present embodiment will be described with reference to FIGS. 2 and 3. Thebanknote processing device 200 according to the present embodiment has, for example, the configurations shown in FIGS. 2A and 2B. The banknote processing device 200 includes a hopper 210 capable of placing a plurality of banknotes, a feeding section 211 for feeding out the banknotes placed on the hopper 210 one by one, and a transport path for transporting the banknotes delivered from the feeding section 211. 212, a bill identification unit 100 having a detection unit (not shown in FIG. 1) such as an optical line sensor and performing bill identification processing, and a stacking unit for accumulating normal bills identified by the bill identification unit 100. 213, a reject unit 214 for accumulating abnormal banknotes that do not meet the predetermined conditions, a display unit 215 for displaying information input to the banknote processing device 200, the processing result, etc., and a banknote along the transport path 212. It is provided with a transport unit (not shown in FIG. 1) that transports the banknotes one by one. The transport unit includes a plurality of transport means such as rollers and a drive device such as a motor that drives the transport means. The bill processing device 200 is further provided at a branch portion of the transport path 212, and is indicated by a branch portion 216 that switches the transport destination of banknotes in the transport path 212 to either the accumulating portion 213 or the reject portion 214, and a triangular mark in the drawing. Each position is provided with a passage sensor 217 that detects the state of transporting banknotes in the device 200. As the passage sensor 217, a transmission type or reflection type optical sensor is provided. From the detection results of these passing sensors 217, the shape and skew state of the bill may be estimated. The branch portion 216 is composed of a plurality of branch claws 216a, a support shaft 216b to which the branch claw 216a is fixed, a drive device (not shown in FIG. 1) for rotating the support shaft 216b in both forward and reverse directions, and the like. .. By rotating the support shaft 216b by the drive device, the branch claw 216a can swing between the first and second positions. By using the banknote identification unit 100 built into such a banknote processing device 200, a plurality of banknotes placed on the hopper 210 can be continuously processed into a fake ticket, a loss ticket, or an uncertain authenticity ticket. The determined banknotes can be returned to the reject unit 214 and sorted. Further, the bill identification unit 100 acquires interval information in the transport direction of the two bills that are continuously transported, and the bill processing device 200 is acquired by the bill identification unit 100. Based on the interval information, it is determined whether or not the interval between the banknotes meets the criteria. Then, if it is satisfied, it is determined that the transfer abnormality has not occurred in those banknotes, and the transfer destination of the banknotes is switched to the accumulation unit 213 at the branch portion 216.
次に、図２及び３を用いて、本実施形態に係る紙幣処理装置の構成について説明する。本実施形態に係る紙幣処理装置２００は、例えば、図２（ａ）及び（ｂ）に示す構成を有する。紙幣処理装置２００は、複数の紙幣を載置可能なホッパ２１０と、ホッパ２１０に載置された紙幣を１枚ずつ繰り出す繰出部２１１と、繰出部２１１から繰り出された紙幣が搬送される搬送路２１２と、光学ラインセンサ等の検出部（図１では図示せず）を有し、紙幣の識別処理を行う紙幣識別部１００と、紙幣識別部１００で識別された正常な紙幣を集積する集積部２１３と、所定条件を満たさない異常な紙幣を集積するリジェクト部２１４と、紙幣処理装置２００に入力された情報や、処理された結果等を表示する表示部２１５と、紙幣を搬送路２１２に沿って１枚ずつ搬送する搬送部（図１では図示せず）と、を備える。搬送部は、複数のローラ等の搬送手段と、搬送手段を駆動する、モータ等の駆動装置とを有している。紙幣処理装置２００は更に、搬送路２１２の分岐箇所に設けられ、搬送路２１２における紙幣の搬送先を集積部２１３又はリジェクト部２１４のいずれかに切り替える分岐部２１６と、図中の三角印で示される各位置に、装置２００内における紙幣の搬送状態を検知する通過センサ２１７とを備えている。通過センサ２１７としては、透過型又は反射型の光センサが設けられている。これらの通過センサ２１７の検知結果から、紙幣の形状と斜行状態を推定してもよい。分岐部２１６は、複数の分岐爪２１６ａと、分岐爪２１６ａが固定される支軸２１６ｂと、支軸２１６ｂを正逆両方向に回転させる駆動装置（図１では図示せず）等から構成されている。駆動装置により支軸２１６ｂを回転することにより、分岐爪２１６ａは、第１及び第２の位置の間で揺動可能となっている。紙幣識別部１００をこのような紙幣処理装置２００に内蔵して利用することにより、ホッパ２１０に載置された複数の紙幣を連続して処理し、偽券、損券又は真偽不確定券と判定された紙幣をリジェクト部２１４に返却し、分別することができる。また、紙幣識別部１００は、連続して搬送される２枚の紙幣の画像に基づいて、それらの紙幣の搬送方向における間隔情報を取得し、紙幣処理装置２００は、紙幣識別部１００で取得された間隔情報に基づき、それらの紙幣の間隔が基準を満たしているか否かを判定する。そして、満たしている場合には、それらの紙幣に搬送異常が生じていないと判断し、それらの紙幣の搬送先を分岐部２１６で集積部２１３に切り替える。 <Structure of banknote processing device>
Next, the configuration of the banknote processing apparatus according to the present embodiment will be described with reference to FIGS. 2 and 3. The
また、図３に示すように、紙幣処理装置２００は、装置２００の各構成要素を制御する制御部２２０と、記憶部２３０とを備えている。制御部２２０には、繰出部２１１、紙幣識別部１００、表示部２１５、分岐部２１６、通過センサ２１７、搬送部２１８、記憶部２３０等が接続されている。
Further, as shown in FIG. 3, the banknote processing device 200 includes a control unit 220 for controlling each component of the device 200 and a storage unit 230. The control unit 220 is connected to a payout unit 211, a bill identification unit 100, a display unit 215, a branch unit 216, a passing sensor 217, a transport unit 218, a storage unit 230, and the like.
記憶部２３０は、半導体メモリやハードディスク等の不揮発性の記憶装置から構成されている。記憶部２３０には、搬送路２１２を連続して搬送される２枚の紙幣の搬送方向における間隔の基準に関する情報である基準間隔情報が記憶されている。基準間隔情報には、分岐部２１６により搬送先を切り替え可能な２枚の紙幣の搬送方向における間隔の許容値、例えば、それらの紙幣の搬送方向における距離の許容値や、それらの紙幣が分岐部２１６を通過する時間間隔の許容値が含まれている。
The storage unit 230 is composed of a non-volatile storage device such as a semiconductor memory or a hard disk. The storage unit 230 stores reference interval information, which is information regarding an interval reference in the conveying direction of two bills continuously conveyed through the conveying path 212. The reference interval information includes the permissible value of the distance in the transport direction of the two banknotes whose transport destination can be switched by the branch portion 216, for example, the permissible value of the distance in the transport direction of the banknotes, and the branch portion of the banknotes. Includes an allowance for the time interval to pass 216.
制御部２２０は、分岐制御部２２１の機能を備えている。制御部２２０は、例えば、各種の処理を実現するためのソフトウェアプログラムと、該ソフトウェアプログラムを実行するＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）と、該ＣＰＵによって制御される各種ハードウェア等によって構成されている。制御部２２０の動作に必要なソフトウェアプログラムやデータは記憶部２３０に記憶される。
The control unit 220 has the function of the branch control unit 221. The control unit 220 is composed of, for example, a software program for realizing various processes, a CPU (Central Processing Unit) that executes the software program, various hardware controlled by the CPU, and the like. Software programs and data necessary for the operation of the control unit 220 are stored in the storage unit 230.
分岐制御部２２１は、間隔情報を紙幣識別部１００から取得し、間隔情報を記憶部２３０に記憶された基準間隔情報と比較し、分岐部２１６を制御する。これにより、紙幣間の間隔が充分でない紙幣を効果的にリジェクトしつつ、紙幣間の間隔が充分確保された紙幣を適切に集積部２１３に搬送することができる。より詳細には、搬送路２１２を連続して搬送される２枚の紙幣の搬送方向における間隔（距離及び／又は時間間隔）を、基準間隔情報に含まれる間隔の許容値（距離の許容値及び／又は時間間隔の許容値）と比較する。そして、間隔が許容値以上であれば、それらの紙幣の搬送先を分岐部２１６で集積部２１３に切り替え、間隔が許容値未満あれば、それらの紙幣の搬送先を分岐部２１６でリジェクト部２１４に切り替える。
The branch control unit 221 acquires the interval information from the bill identification unit 100, compares the interval information with the reference interval information stored in the storage unit 230, and controls the branch unit 216. As a result, it is possible to appropriately reject the banknotes having insufficient intervals between the banknotes and appropriately convey the banknotes having sufficient intervals between the banknotes to the collecting unit 213. More specifically, the distance (distance and / or time interval) in the transport direction of two banknotes continuously transported along the transport path 212 is the permissible value of the interval (distance permissible value and the permissible value of the distance) included in the reference interval information. / Or the allowable value of the time interval). Then, if the interval is equal to or more than the permissible value, the destination of the banknotes is switched to the accumulation unit 213 by the branching unit 216, and if the interval is less than the allowable value, the destination of the banknotes is rejected by the branching unit 216. Switch to.
なお、分岐部２１６を制御するとは、例えば、３枚の紙幣Ａ、Ｂ及びＣについて、紙幣Ａ及びＢの間隔が正常であり、かつ紙幣Ｂ及びＣの間隔が異常である場合に、分岐爪２１６ａの方向を切り替えて紙幣Ａを集積部２１３に搬送した後、分岐爪２１６ａの方向を元に戻して紙幣Ｂ及びＣをリジェクト部２１４に搬送することを指している。この場合、紙幣Ｂを集積部２１３に搬送した後に紙幣Ｃをリジェクト部２１４に搬送することは、紙幣Ｂ及びＣの間隔上できない。
Note that controlling the branching portion 216 means that, for example, for three bills A, B and C, when the spacing between the bills A and B is normal and the spacing between the bills B and C is abnormal, the branching claw is used. It means that after switching the direction of the 216a and transporting the bill A to the accumulating portion 213, the direction of the branch claw 216a is returned to the original direction and the bills B and C are transported to the reject portion 214. In this case, it is not possible to transport the banknote C to the reject unit 214 after transporting the banknote B to the accumulating unit 213 due to the interval between the banknotes B and C.
また、分岐制御部２２１は、上述の間隔情報と基準間隔情報との比較だけでなく、紙幣の金種識別結果や、紙幣の斜行の度合い等の条件も考慮して分岐部２１６を制御してもよい。
Further, the branch control unit 221 controls the branch unit 216 in consideration of not only the comparison between the above-mentioned interval information and the reference interval information but also conditions such as the denomination identification result of the banknote and the degree of skewing of the banknote. You may.
＜紙幣識別部の構成＞
次に、図４及び５を用いて、紙幣識別部１００の構成について説明する。紙幣識別部１００は、図４（ａ）及び（ｂ）に示すように、搬送路２１２を搬送される紙幣ＢＮの種々の特徴を順次検出する検出部１０を有している。検出部１０は、紙幣処理装置２００において紙幣ＢＮが搬送される搬送路２１２を挟んだ上側のユニットと下側のユニットとから構成されている。図４（ｂ）は、検出部１０の上側のユニットを下から見た平面図に相当する。検出部１０は、紙幣ＢＮの搬送路２１２に沿って、検出部１０に順次搬送されてくる紙幣ＢＮを検出し、検出部１０における紙幣ＢＮの検出開始のタイミングを決定するための紙幣検出信号を生成する複数の通過センサ１１ａと、撮像素子（受光素子）がライン状に配列された画像センサ、及び光源やレンズ等の撮像光学系で構成され、搬送路２１２を搬送される紙幣ＢＮを撮像する光学ラインセンサ（密着イメージセンサ）１２と、搬送路２１２を挟んで対向するローラの一方における紙幣ＢＮ通過時の変位量をセンサによって検出することによって紙幣ＢＮの厚みを検出する厚み検知センサ１３と、搬送路２１２を搬送される紙幣ＢＮに含まれる磁気情報や磁気パターンを検出する磁気ラインセンサ１４と、紙幣ＢＮが通過したことを検出する複数の通過センサ１１ｂとが並んで配置された構成を有する。通過センサ１１ａ及び１１ｂとしては、透過型の光センサが設けられている。光学ラインセンサ１２、厚み検知センサ１３及び磁気ラインセンサ１４は、紙幣ＢＮの搬送方向に交差する方向（好ましくは直交方向）に設けられ、かつ搬送路２１２の幅に対して充分に長く、紙幣ＢＮの全面を検出でき、紙幣ＢＮの前端及び後端を含む全面の情報を取得することができる。また、検出部１０には、搬送路２１２内を紙幣ＢＮが移動できるように、搬送機構１５が設けられている。搬送機構１５としては特に限定されず、例えば、ローラ、ベルト等をモータ等の駆動装置で駆動するものが用いられる。更に、磁気ラインセンサ１４の下方には、紙幣ＢＮを磁気ラインセンサ１４の磁気検出面に密着させることができるように、外周表面に毛状の材料が設けられた毛ローラ１６が配置されている。 <Structure of banknote identification unit>
Next, the configuration of thebill identification unit 100 will be described with reference to FIGS. 4 and 5. As shown in FIGS. 4A and 4B, the bill identification unit 100 has a detection unit 10 that sequentially detects various features of the bill BN transported along the transport path 212. The detection unit 10 is composed of an upper unit and a lower unit sandwiching a transport path 212 for transporting bills BN in the bill processing device 200. FIG. 4B corresponds to a plan view of the upper unit of the detection unit 10 as viewed from below. The detection unit 10 detects the banknote BN sequentially transported to the detection unit 10 along the banknote BN transport path 212, and transmits a banknote detection signal for determining the timing of starting detection of the banknote BN in the detection unit 10. It is composed of a plurality of passage sensors 11a to be generated, an image sensor in which image pickup elements (light receiving elements) are arranged in a line, and an image pickup optical system such as a light source and a lens, and images a banknote BN carried through a carrier path 212. An optical line sensor (contact image sensor) 12, a thickness detection sensor 13 that detects the thickness of the banknote BN by detecting the amount of displacement of one of the rollers facing each other across the transport path 212 when passing the banknote BN, and a thickness detection sensor 13. It has a configuration in which a magnetic line sensor 14 for detecting magnetic information and a magnetic pattern included in a bill BN carried on a transport path 212 and a plurality of passage sensors 11b for detecting the passage of a bill BN are arranged side by side. .. As the passage sensors 11a and 11b, transmission type optical sensors are provided. The optical line sensor 12, the thickness detection sensor 13, and the magnetic line sensor 14 are provided in a direction intersecting the transport direction of the bill BN (preferably in the orthogonal direction), and are sufficiently long with respect to the width of the transport path 212, so that the bill BN It is possible to detect the entire surface of the banknote BN and acquire information on the entire surface including the front end and the rear end of the banknote BN. Further, the detection unit 10 is provided with a transport mechanism 15 so that the bill BN can move in the transport path 212. The transport mechanism 15 is not particularly limited, and for example, a mechanism in which a roller, a belt, or the like is driven by a drive device such as a motor is used. Further, below the magnetic line sensor 14, a hair roller 16 provided with a hair-like material on the outer peripheral surface is arranged so that the bill BN can be brought into close contact with the magnetic detection surface of the magnetic line sensor 14. ..
次に、図４及び５を用いて、紙幣識別部１００の構成について説明する。紙幣識別部１００は、図４（ａ）及び（ｂ）に示すように、搬送路２１２を搬送される紙幣ＢＮの種々の特徴を順次検出する検出部１０を有している。検出部１０は、紙幣処理装置２００において紙幣ＢＮが搬送される搬送路２１２を挟んだ上側のユニットと下側のユニットとから構成されている。図４（ｂ）は、検出部１０の上側のユニットを下から見た平面図に相当する。検出部１０は、紙幣ＢＮの搬送路２１２に沿って、検出部１０に順次搬送されてくる紙幣ＢＮを検出し、検出部１０における紙幣ＢＮの検出開始のタイミングを決定するための紙幣検出信号を生成する複数の通過センサ１１ａと、撮像素子（受光素子）がライン状に配列された画像センサ、及び光源やレンズ等の撮像光学系で構成され、搬送路２１２を搬送される紙幣ＢＮを撮像する光学ラインセンサ（密着イメージセンサ）１２と、搬送路２１２を挟んで対向するローラの一方における紙幣ＢＮ通過時の変位量をセンサによって検出することによって紙幣ＢＮの厚みを検出する厚み検知センサ１３と、搬送路２１２を搬送される紙幣ＢＮに含まれる磁気情報や磁気パターンを検出する磁気ラインセンサ１４と、紙幣ＢＮが通過したことを検出する複数の通過センサ１１ｂとが並んで配置された構成を有する。通過センサ１１ａ及び１１ｂとしては、透過型の光センサが設けられている。光学ラインセンサ１２、厚み検知センサ１３及び磁気ラインセンサ１４は、紙幣ＢＮの搬送方向に交差する方向（好ましくは直交方向）に設けられ、かつ搬送路２１２の幅に対して充分に長く、紙幣ＢＮの全面を検出でき、紙幣ＢＮの前端及び後端を含む全面の情報を取得することができる。また、検出部１０には、搬送路２１２内を紙幣ＢＮが移動できるように、搬送機構１５が設けられている。搬送機構１５としては特に限定されず、例えば、ローラ、ベルト等をモータ等の駆動装置で駆動するものが用いられる。更に、磁気ラインセンサ１４の下方には、紙幣ＢＮを磁気ラインセンサ１４の磁気検出面に密着させることができるように、外周表面に毛状の材料が設けられた毛ローラ１６が配置されている。 <Structure of banknote identification unit>
Next, the configuration of the
紙幣識別部１００は、検出部１０のこれらのセンサによって取得されたデータを利用して紙幣ＢＮの識別処理を行う。識別処理の内容は特に限定されず、例えば、紙幣の場合は金種の識別、紙幣の真偽や正損の判定といった各種機能が挙げられる。
The bill identification unit 100 performs a bill BN identification process using the data acquired by these sensors of the detection unit 10. The content of the identification process is not particularly limited, and examples thereof include various functions such as identification of denominations in the case of banknotes and determination of authenticity and correctness of banknotes.
また、図５に示すように、紙幣識別部１００は、紙幣識別部１００の各構成要素を制御する制御部２０と、記憶部３０とを備えている。制御部２０には、検出部１０の各センサ及び搬送機構１５や、記憶部３０等が接続されている。
Further, as shown in FIG. 5, the bill identification unit 100 includes a control unit 20 that controls each component of the bill identification unit 100, and a storage unit 30. Each sensor of the detection unit 10, the transport mechanism 15, the storage unit 30, and the like are connected to the control unit 20.
記憶部３０は、半導体メモリやハードディスク等の不揮発性の記憶装置から構成されている。
The storage unit 30 is composed of a non-volatile storage device such as a semiconductor memory or a hard disk.
制御部２０は、間隔情報取得部２１の機能を備えている。制御部２０は、例えば、各種の処理を実現するためのソフトウェアプログラムと、該ソフトウェアプログラムを実行するＣＰＵと、該ＣＰＵによって制御される各種ハードウェア等によって構成されている。制御部２０の動作に必要なソフトウェアプログラムやデータは記憶部３０に記憶される。
The control unit 20 has a function of the interval information acquisition unit 21. The control unit 20 is composed of, for example, a software program for realizing various processes, a CPU for executing the software program, various hardware controlled by the CPU, and the like. Software programs and data necessary for the operation of the control unit 20 are stored in the storage unit 30.
間隔情報取得部２１は、光学ラインセンサ１２の出力データから生成された紙幣ＢＮの画像データに基づいて、第１の紙幣ＢＮ１の搬送方向における後端と、第１の紙幣ＢＮ１に後続して搬送される第２の紙幣ＢＮ２の搬送方向における前端とをそれぞれ検出する。なお、ここで、紙幣の搬送方向における後端とは、紙幣が斜行している場合は、搬送方向と反対の方向に最も突出した紙幣の角部に相当し、紙幣が斜行していない場合は、搬送方向と反対側（後方）の紙幣の辺に相当する。また、紙幣の搬送方向における前端とは、紙幣が斜行している場合は、搬送方向に最も突出した紙幣の角部に相当し、紙幣が斜行していない場合は、搬送方向側（前方）の紙幣の辺に相当する。
Based on the image data of the banknote BN generated from the output data of the optical line sensor 12, the interval information acquisition unit 21 conveys the first banknote BN1 at the rear end in the conveying direction and the first banknote BN1 following the first banknote BN1. The front end of the second bill BN2 to be carried in the transport direction is detected. Here, the rear end in the transport direction of the bill corresponds to the corner of the bill that protrudes most in the direction opposite to the transport direction when the bill is skewed, and the bill is not skewed. In the case, it corresponds to the side of the bill on the opposite side (rear) of the transport direction. Further, the front end in the transport direction of the bill corresponds to the corner of the bill that protrudes most in the transport direction when the bill is skewed, and when the bill is not skewed, the side in the transport direction (forward). ) Corresponds to the side of the bill.
より詳細には、間隔情報取得部２１は、図１に示したように、光学ラインセンサ１２の出力データから生成された第１の紙幣ＢＮ１の画像ＩＭＧ１から第１の紙幣ＢＮ１の後端を検出するとともに、光学ラインセンサ１２の出力データから生成された第２の紙幣ＢＮ２の画像ＩＭＧ２から第２の紙幣ＢＮ２の前端を検出する。なお、各紙幣ＢＮ１、ＢＮ２の画像ＩＭＧ１、ＩＭＧ２は、通常、紙幣が撮像された媒体領域Ｒ１と、その周囲の紙幣が撮像されていない周辺領域Ｒ２とを含んでいる。
More specifically, as shown in FIG. 1, the interval information acquisition unit 21 detects the rear end of the first banknote BN1 from the image IMG1 of the first banknote BN1 generated from the output data of the optical line sensor 12. At the same time, the front end of the second banknote BN2 is detected from the image IMG2 of the second banknote BN2 generated from the output data of the optical line sensor 12. The images IMG1 and IMG2 of the banknotes BN1 and BN2 usually include a medium area R1 in which the banknotes are imaged and a peripheral area R2 in which the surrounding banknotes are not imaged.
また、間隔情報取得部２１は、第１の紙幣ＢＮ１の後端及び第２の紙幣ＢＮ２の前端の検出結果に基づいて、第１の紙幣ＢＮ１及び第２の紙幣ＢＮ２の搬送方向における間隔情報を取得する。より詳細には、図１に示したように、第１の紙幣ＢＮ１の画像ＩＭＧ１から、第１の紙幣ＢＮ１の後端と第１の紙幣ＢＮ１の画像ＩＭＧ１の後端との間の間隔（１）を算出するとともに、第２の紙幣ＢＮ２の画像ＩＭＧ２から、第２の紙幣ＢＮ２の前端と第２の紙幣ＢＮ２の画像ＩＭＧ２の前端との間の間隔（２）を算出する。これらの間隔（１）及び（２）は、それぞれの画像ＩＭＧ１、ＩＭＧ２における媒体領域Ｒ１の大きさと、その中心座標とに基づいて算出してもよい。また、間隔情報取得部２１は、第１の紙幣ＢＮ１の画像ＩＭＧ１と、第２の紙幣ＢＮ２の画像ＩＭＧ２との間の間隔（３）を算出する。間隔（３）は、例えば、紙幣の搬送速度に応じて変化するメカクロックのクロック数から算出してもよいし、紙幣の搬送速度から算出してもよい。メカクロックのクロック数から算出する場合、画像ＩＭＧ１のデータ採取終了のタイミングから、通過センサ１１ａで検出した第２の紙幣ＢＮ２の画像ＩＭＧ２のデータ採取開始のタイミングまでのメカクロック数に基づいて算出してもよい。そして、間隔情報取得部２１は、算出した間隔（１）～（３）を合算することによって、第１の紙幣ＢＮ１の後端と第２の紙幣ＢＮ２の前端との搬送方向における間隔を取得する。なお、これらの間隔（１）～（３）は、上述のように、距離であってもよいし時間間隔であってもよい。
Further, the interval information acquisition unit 21 obtains interval information in the transport direction of the first banknote BN1 and the second banknote BN2 based on the detection results of the rear end of the first banknote BN1 and the front end of the second banknote BN2. get. More specifically, as shown in FIG. 1, the distance (1) from the image IMG1 of the first banknote BN1 to the rear end of the image IMG1 of the first banknote BN1 and the image IMG1 of the first banknote BN1. ) Is calculated, and the distance (2) between the front end of the second bill BN2 and the front end of the image IMG2 of the second bill BN2 is calculated from the image IMG2 of the second bill BN2. These intervals (1) and (2) may be calculated based on the size of the medium region R1 in each of the images IMG1 and IMG2 and the center coordinates thereof. Further, the interval information acquisition unit 21 calculates the interval (3) between the image IMG1 of the first banknote BN1 and the image IMG2 of the second banknote BN2. The interval (3) may be calculated from, for example, the number of mechanical clocks that change according to the transport speed of banknotes, or may be calculated from the transport speed of banknotes. When calculating from the number of clocks of the mechanical clock, it is calculated based on the number of mechanical clocks from the timing of the end of data collection of the image IMG1 to the timing of the start of data collection of the image IMG2 of the second banknote BN2 detected by the passing sensor 11a. You may. Then, the interval information acquisition unit 21 acquires the interval in the transport direction between the rear end of the first bill BN1 and the front end of the second bill BN2 by adding up the calculated intervals (1) to (3). .. Note that these intervals (1) to (3) may be distances or time intervals as described above.
間隔情報取得部２１が利用する画像データ及び画像の種類は特に限定されず、例えば、反射画像データ及び反射画像であってもよいが、透過画像データ及び透過画像が好適である。
The types of image data and images used by the interval information acquisition unit 21 are not particularly limited, and may be, for example, reflected image data and reflected images, but transparent image data and transparent images are preferable.
＜紙幣処理装置による処理フロー＞
次に、図６を用いて、本実施形態に係る紙幣処理装置による処理フロー、なかでも分岐部１２６で紙幣の搬送先を制御する処理フローについて説明する。 <Processing flow by banknote processing device>
Next, with reference to FIG. 6, a processing flow by the bill processing apparatus according to the present embodiment, particularly, a processing flow in which the branch portion 126 controls the transport destination of the bills will be described.
次に、図６を用いて、本実施形態に係る紙幣処理装置による処理フロー、なかでも分岐部１２６で紙幣の搬送先を制御する処理フローについて説明する。 <Processing flow by banknote processing device>
Next, with reference to FIG. 6, a processing flow by the bill processing apparatus according to the present embodiment, particularly, a processing flow in which the branch portion 126 controls the transport destination of the bills will be described.
図６に示すように、まず、搬送路２１２を搬送される紙幣の搬送方向に交差する方向にライン状に設けられた光学ラインセンサ１２が、搬送される各紙幣全面を撮像して、各紙幣全面の光学情報等の情報を取得する（紙幣情報採取ステップＳ１１）。次に、間隔情報取得部２１が、光学ラインセンサ１２の出力データを画像化したデータからなる画像に基づいて、第１の紙幣の搬送方向における後端と、それに続く第２の紙幣の搬送方向における前端とをそれぞれ検出し、後端及び前端の検出結果に基づいて、第１の紙幣及び第２の紙幣の搬送方向における間隔情報を取得する（間隔情報採取ステップＳ１２）。そして、分岐制御部２２１が、間隔情報取得部２１で取得された間隔情報を記憶部２３０に記憶された基準間隔情報と比較し、分岐部２１６を制御する（分岐制御ステップＳ１３）。
As shown in FIG. 6, first, an optical line sensor 12 provided in a line shape in a direction intersecting the transport direction of the bills transported in the transport path 212 captures the entire surface of each bill to be transported, and each bill Information such as optical information on the entire surface is acquired (banknote information collection step S11). Next, the interval information acquisition unit 21 describes the rear end in the transport direction of the first bill and the subsequent transport direction of the second bill based on the image consisting of the data obtained by imaging the output data of the optical line sensor 12. The front end and the front end are detected, respectively, and the interval information in the transport direction of the first banknote and the second banknote is acquired based on the detection results of the rear end and the front end (interval information collection step S12). Then, the branch control unit 221 compares the interval information acquired by the interval information acquisition unit 21 with the reference interval information stored in the storage unit 230, and controls the branch unit 216 (branch control step S13).
以上説明したように、上記実施形態では、紙幣の搬送方向に交差する方向にライン状に設けられたセンサである光学ラインセンサ１２が、搬送される各紙幣全面を撮像して、各紙幣全面の光学情報等の情報を取得し、間隔情報取得部２１が、光学ラインセンサ１２の出力データを画像化したデータからなる画像に基づいて、第１の紙幣の搬送方向における後端と、第１の紙幣に後続して搬送される第２の紙幣の搬送方向における前端とをそれぞれ検出し、後端及び前端の検出結果に基づいて、第１の紙幣及び第２の紙幣の搬送方向における間隔情報を取得することから、２枚の紙幣間の間隔情報を、通過センサを利用する従来の場合に比べて、より正確に把握することができる。したがって、２枚の紙幣間の間隔が原因でリジェクトされる紙幣の枚数を削減することができる。
As described above, in the above embodiment, the optical line sensor 12, which is a sensor provided in a line in a direction intersecting the transport direction of the bill, captures the entire surface of each bill to be transported and captures the entire surface of each bill. The interval information acquisition unit 21 acquires information such as optical information, and based on an image composed of data obtained by imaging the output data of the optical line sensor 12, the rear end in the transport direction of the first banknote and the first The front end in the transport direction of the second bill to be transported following the bill is detected, respectively, and the interval information in the transport direction of the first bill and the second bill is obtained based on the detection results of the rear end and the front end, respectively. Since the data is acquired, the distance information between the two bills can be grasped more accurately than in the conventional case of using the passage sensor. Therefore, it is possible to reduce the number of banknotes that are rejected due to the distance between the two banknotes.
なお、上記実施形態では、光学ラインセンサ１２の出力データを画像化したデータ、すなわち画像データ（画像）に基づいて第１の紙幣の後端及び第２の紙幣の前端を検出する場合について説明したが、第１の紙幣の後端及び第２の紙幣の前端の検出に、光学ラインセンサ１２の出力データを画像化することなく使用してもよい。
In the above embodiment, a case where the rear end of the first bill and the front end of the second bill are detected based on the data obtained by imaging the output data of the optical line sensor 12, that is, the image data (image) has been described. However, the output data of the optical line sensor 12 may be used for detecting the rear end of the first bill and the front end of the second bill without imaging.
また、上記実施形態では、紙幣全面の情報を取得するセンサとして光学ラインセンサ１２を用いる場合について説明したが、該センサの種類は特に限定されず、例えば、厚み検知センサ１３を用いることもできる。厚み検知センサ１３によれば紙幣の輪郭を検出できるためである。厚み検知センサ１３を用いる場合、厚み検知センサ１３によって、各紙幣全面で厚みを検出し、各紙幣の厚みの分布を検出してもよい。厚み検知センサ１３によって取得される紙幣全面の情報には、紙幣全面の厚みの情報（紙幣全面厚みの分布）のみならず、各検出点の位置情報や、各検出点で厚みの情報を取得した時刻に関する情報等も含まれる。そして、間隔情報取得部２１によって、第１の紙幣の厚みの分布から第１の紙幣の後端を検出するとともに、第１の紙幣に続く第２の紙葉類の厚みの分布から第２の紙葉類の前端を検出してもよい。また、処理対象の紙幣が全面（端面も含む）に磁気がある紙幣であれば、磁気ラインセンサ１４を用いることもできる。磁気ラインセンサ１４によって取得される紙幣全面の磁気情報には、磁気情報や磁気パターンといった磁気に関する情報のみならず、各検出点の位置情報や、各検出点で磁気に関する情報を取得した時刻に関する情報等も含まれる。
Further, in the above embodiment, the case where the optical line sensor 12 is used as the sensor for acquiring the information on the entire surface of the banknote has been described, but the type of the sensor is not particularly limited, and for example, the thickness detection sensor 13 can be used. This is because the thickness detection sensor 13 can detect the contour of the bill. When the thickness detection sensor 13 is used, the thickness detection sensor 13 may detect the thickness on the entire surface of each banknote and detect the distribution of the thickness of each banknote. The information on the entire surface of the banknote acquired by the thickness detection sensor 13 includes not only the information on the thickness of the entire surface of the banknote (distribution of the thickness of the entire surface of the banknote), but also the position information of each detection point and the thickness information at each detection point. Information about the time is also included. Then, the interval information acquisition unit 21 detects the rear end of the first bill from the distribution of the thickness of the first bill, and the second from the distribution of the thickness of the second paper leaf following the first bill. The front edge of the paper notes may be detected. Further, if the banknote to be processed has magnetism on the entire surface (including the end face), the magnetic line sensor 14 can also be used. The magnetic information on the entire surface of the banknote acquired by the magnetic line sensor 14 includes not only magnetic information such as magnetic information and magnetic patterns, but also position information of each detection point and information on the time when magnetic information is acquired at each detection point. Etc. are also included.
また、上記実施形態では、紙幣が、紙幣処理装置２００内の搬送路２１２を短手方向に搬送される場合について説明したが、紙幣は、本発明に係る紙幣処理装置内の搬送路を長手方向に搬送されてもよい。
Further, in the above embodiment, the case where the banknotes are transported in the short direction through the transport path 212 in the banknote processing device 200 has been described, but the banknotes are transported in the longitudinal direction in the transport path in the banknote processing device according to the present invention. May be transported to.
以上、図面を参照しながら本発明の実施形態を説明したが、本発明は、上記実施形態に限定されるものではない。また、各実施形態の構成は、本発明の要旨を逸脱しない範囲において適宜組み合わされてもよいし、変更されてもよい。
Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the above embodiments. Further, the configurations of the respective embodiments may be appropriately combined or modified as long as they do not deviate from the gist of the present invention.
以上のように、本発明は、連続して搬送される２枚の紙葉類の間隔情報を検出するのに有用な技術である。
As described above, the present invention is a technique useful for detecting the interval information of two sheets of paper that are continuously transported.
１０：検出部
１１ａ、１１ｂ、２１７：通過センサ
１２：光学ラインセンサ
１３：厚み検知センサ
１４：磁気ラインセンサ
１５：搬送機構
１６：毛ローラ
２０、２２０：制御部
２１：間隔情報取得部
３０、２３０：記憶部
１００：紙幣識別部
２００：紙幣処理装置（紙葉類処理装置）
２１０：ホッパ
２１１：繰出部
２１２：搬送路
２１３：集積部
２１４：リジェクト部
２１５：表示部
２１６：分岐部
２１６ａ：分岐爪
２１６ｂ：支軸
２１８：搬送部
２２１：分岐制御部
ＢＮ、ＢＮ１、ＢＮ２：紙幣
ＩＭＧ１、ＩＭＧ２：画像
Ｒ１：媒体領域
Ｒ２：周辺領域 10: Detection unit 11a, 11b, 217: Passing sensor 12: Optical line sensor 13: Thickness detection sensor 14: Magnetic line sensor 15: Conveying mechanism 16: Hair roller 20, 220: Control unit 21: Interval information acquisition unit 30, 230 : Storage unit 100: Banknote identification unit 200: Banknote processing device (paper leaf processing device)
210: Hopper 211: Feeding section 212: Transport path 213: Stacking section 214: Reject section 215: Display section 216:Branch section 216a: Branch claw 216b: Support shaft 218: Transport section 221: Branch control section BN, BN1, BN2: Banknotes IMG1, IMG2: Image R1: Medium area R2: Peripheral area
１１ａ、１１ｂ、２１７：通過センサ
１２：光学ラインセンサ
１３：厚み検知センサ
１４：磁気ラインセンサ
１５：搬送機構
１６：毛ローラ
２０、２２０：制御部
２１：間隔情報取得部
３０、２３０：記憶部
１００：紙幣識別部
２００：紙幣処理装置（紙葉類処理装置）
２１０：ホッパ
２１１：繰出部
２１２：搬送路
２１３：集積部
２１４：リジェクト部
２１５：表示部
２１６：分岐部
２１６ａ：分岐爪
２１６ｂ：支軸
２１８：搬送部
２２１：分岐制御部
ＢＮ、ＢＮ１、ＢＮ２：紙幣
ＩＭＧ１、ＩＭＧ２：画像
Ｒ１：媒体領域
Ｒ２：周辺領域 10:
210: Hopper 211: Feeding section 212: Transport path 213: Stacking section 214: Reject section 215: Display section 216:
Claims (8)
- 紙葉類が搬送される搬送路と、
前記搬送路を搬送される紙葉類の搬送方向に交差する方向にライン状に設けられ、搬送される紙葉類全面の情報を取得するセンサと、
前記センサの出力データに基づいて、第１の紙葉類の前記搬送方向における後端と、前記第１の紙葉類に後続して搬送される第２の紙葉類の前記搬送方向における前端とをそれぞれ検出し、前記後端及び前記前端の検出結果に基づいて、前記第１の紙葉類及び前記第２の紙葉類の前記搬送方向における間隔情報を取得する間隔情報取得部と、を備える
ことを特徴とする紙葉類処理装置。 The transport path where paper leaves are transported and
A sensor that is provided in a line in a direction intersecting the transport direction of the paper sheets to be transported along the transport path and acquires information on the entire surface of the paper leaves to be transported.
Based on the output data of the sensor, the rear end of the first paper sheet in the transport direction and the front end of the second paper leaf that is transported following the first paper leaf in the transport direction. And the interval information acquisition unit which acquires the interval information in the transport direction of the first paper leaf and the second paper leaf based on the detection results of the rear end and the front end, respectively. A paper leaf processing apparatus characterized by comprising. - 前記センサは、搬送される紙葉類の画像を取得し、
前記間隔情報取得部は、前記第１の紙葉類の画像から前記第１の紙葉類の前記後端を検出するとともに、前記第２の紙葉類の画像から前記第２の紙葉類の前記前端を検出する
ことを特徴とする請求項１記載の紙葉類処理装置。 The sensor acquires an image of the paper leaves to be transported and
The interval information acquisition unit detects the rear end of the first paper leaf from the image of the first paper leaf, and the second paper leaf from the image of the second paper leaf. The paper leaf processing apparatus according to claim 1, wherein the front end of the paper is detected. - 前記センサは、光学ラインセンサである
ことを特徴とする請求項２記載の紙葉類処理装置。 The paper sheet processing apparatus according to claim 2, wherein the sensor is an optical line sensor. - 前記センサは、厚み検知センサであり、搬送される紙葉類の厚みの分布を検出し、
前記間隔情報取得部は、前記第１の紙葉類の厚みの分布から前記第１の紙葉類の前記後端を検出するとともに、前記第２の紙葉類の厚みの分布から前記第２の紙葉類の前記前端を検出する
ことを特徴とする請求項１記載の紙葉類処理装置。 The sensor is a thickness detection sensor, which detects the distribution of the thickness of the paper sheets to be transported.
The interval information acquisition unit detects the rear end of the first paper leaf from the thickness distribution of the first paper leaf, and also detects the rear end of the first paper leaf from the thickness distribution of the second paper leaf. The paper leaf processing apparatus according to claim 1, wherein the front end of the paper leaves is detected. - 前記搬送路を搬送される紙葉類の搬送先を切り替える分岐部と、
前記搬送路を連続して搬送される２枚の紙葉類の前記搬送方向における基準間隔情報を記憶する記憶部と、
前記間隔情報取得部で取得された前記間隔情報を前記記憶部に記憶された前記基準間隔情報と比較し、前記分岐部を制御する分岐制御部と、を更に備える
ことを特徴とする請求項１～４のいずれかに記載の紙葉類処理装置。 A branch portion that switches the transport destination of paper sheets transported along the transport path, and
A storage unit that stores reference interval information in the transport direction of two sheets of paper that are continuously transported through the transport path, and a storage unit.
Claim 1 is characterized in that the interval information acquired by the interval information acquisition unit is compared with the reference interval information stored in the storage unit, and a branch control unit that controls the branch unit is further provided. The paper leaf processing apparatus according to any one of 4 to 4. - 前記間隔情報は、前記第１の紙葉類の前記後端と前記第２の紙葉類の前記前端との間の前記搬送方向における距離である
ことを特徴とする請求項１～５のいずれかに記載の紙葉類処理装置。 Any of claims 1 to 5, wherein the interval information is a distance in the transport direction between the rear end of the first paper leaf and the front end of the second paper leaf. Paper leaf processing device described in Crab. - 前記間隔情報は、前記センサが前記後端を検出してから前記前端を検出するまでの時間である
ことを特徴とする請求項１～５のいずれかに記載の紙葉類処理装置。 The paper leaf processing apparatus according to any one of claims 1 to 5, wherein the interval information is a time from when the sensor detects the rear end to when the front end is detected. - 搬送路を搬送される紙葉類の搬送方向に交差する方向にライン状に設けられたセンサにより、搬送される紙葉類全面の情報を取得する工程と、
前記センサの出力データに基づいて、第１の紙葉類の前記搬送方向における後端と、前記第１の紙葉類に後続して搬送される第２の紙葉類の前記搬送方向における前端とをそれぞれ検出し、前記後端及び前記前端の検出結果に基づいて、前記第１の紙葉類及び前記第２の紙葉類の前記搬送方向における間隔情報を取得する工程と、を備える
ことを特徴とする紙葉類処理方法。 A process of acquiring information on the entire surface of the paper sheets to be transported by a sensor provided in a line in a direction intersecting the transport direction of the paper sheets to be transported along the transport path.
Based on the output data of the sensor, the rear end of the first paper sheet in the transport direction and the front end of the second paper leaf that is transported following the first paper leaf in the transport direction. Each of the above is detected, and based on the detection results of the rear end and the front end, the step of acquiring the interval information in the transport direction of the first paper leaf and the second paper leaf is provided. A paper leaf processing method characterized by.
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| JP2018165766A (en) * | 2017-03-28 | 2018-10-25 | 株式会社沖データ | Image forming apparatus |
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| JP2018008814A (en) * | 2016-07-15 | 2018-01-18 | グローリー株式会社 | Branching device and paper sheet processing machine |
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