WO2017203614A1 - Dispositif de collecte d'informations de feuilles de papier et procédé de collecte d'informations de feuilles de papier - Google Patents

Dispositif de collecte d'informations de feuilles de papier et procédé de collecte d'informations de feuilles de papier Download PDF

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Publication number
WO2017203614A1
WO2017203614A1 PCT/JP2016/065366 JP2016065366W WO2017203614A1 WO 2017203614 A1 WO2017203614 A1 WO 2017203614A1 JP 2016065366 W JP2016065366 W JP 2016065366W WO 2017203614 A1 WO2017203614 A1 WO 2017203614A1
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WIPO (PCT)
Prior art keywords
paper sheet
data collection
data
collection
unit
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PCT/JP2016/065366
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English (en)
Japanese (ja)
Inventor
友彦 糟谷
紀和 竹谷
和弘 大松
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グローリー株式会社
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Application filed by グローリー株式会社 filed Critical グローリー株式会社
Priority to AU2016407875A priority Critical patent/AU2016407875B2/en
Priority to EP16903096.2A priority patent/EP3467794B1/fr
Priority to PCT/JP2016/065366 priority patent/WO2017203614A1/fr
Publication of WO2017203614A1 publication Critical patent/WO2017203614A1/fr

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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
    • G07D7/181—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
    • 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
    • G07D11/20—Controlling or monitoring the operation of devices; Data handling
    • G07D11/22—Means for sensing or detection
    • G07D11/235—Means for sensing or detection for monitoring or indicating operating conditions; for detecting malfunctions

Definitions

  • the present invention relates to a paper sheet information collecting apparatus and a paper sheet information collecting method. More specifically, a paper sheet information collecting apparatus and paper sheet information suitable for a paper sheet identification apparatus that acquires information such as images, positions, and sizes of paper sheets such as banknotes, gift certificates, checks, and card-like media. It relates to the collection method.
  • paper sheets such as banknotes (banknotes), gift certificates, and checks to prevent counterfeiting.
  • the paper used for paper sheets is mainly made of vegetable fiber, but for the purpose of improving durability, water resistance, security, etc., paper made of synthetic fiber or synthetic resin is used.
  • a polymer sheet which is a sheet of the above is used.
  • a banknote made from a polymer sheet is called a polymer banknote, and a polymer banknote provided with a clear window (transparent window) is difficult to counterfeit.
  • an optical sensor such as an optical line sensor is usually used.
  • the clear window is a transparent part that transmits light emitted from the optical sensor, the paper sheet having a transparent part is used. May require processing different from that of ordinary paper sheets that do not have a transparent portion.
  • Patent Document 1 as a technique for preventing erroneous detection of a conveyance abnormality caused by an island-shaped window formed on a banknote, among a plurality of conveyance path sensors arranged along a conveyance path In the position corresponding to any one of the conveyance path sensors, when it is detected that there is no bill after it is determined that the bill has passed, only the period set in advance from the time when it is detected that there is no bill.
  • a paper sheet processing apparatus is disclosed that stops the operation of determining the passage of the trailing edge at a position corresponding to one transport path sensor.
  • the clear window is erroneously determined to be the trailing edge (terminal) of the paper sheet, and the optical line sensor or the like Collection of transmitted light data from the sensor is terminated, and the part after the clear window may be mistakenly detected as the second sheet.
  • the clear window is erroneously determined to be the trailing edge (terminal) of the paper sheet, and the optical line sensor or the like Collection of transmitted light data from the sensor is terminated, and the part after the clear window may be mistakenly detected as the second sheet.
  • a wide belt-like clear window reaches from one end to the other end in the lateral direction of the paper sheet, erroneous detection may occur even by the technique described in Patent Document 1.
  • the present invention has been made in view of the above situation, and can reduce erroneous detection of the trailing edge of a paper sheet having a transparent portion while suppressing extra data collected after detection of the trailing edge of the paper sheet.
  • An object of the present invention is to provide a sheet information collecting apparatus and a sheet information collecting method.
  • the present invention is a paper sheet information collecting apparatus that collects information on a paper sheet having a transparent portion, and scans the transported paper sheet in a transport direction, and a transport unit that transports the paper sheet.
  • An optical sensor that outputs transmitted light data for a plurality of sampling points in the transport direction, a data sampling unit that collects transmitted light data of the optical sensor, and light at each sampling point based on the transmitted light data.
  • a determination unit that determines transmission or light shielding, a recording unit that records a plurality of data collection end determination threshold values set according to the plurality of sampling points, and a sampling point that is determined by the determination unit to transmit light.
  • the data collection unit When the data collection unit is continuous in the transport direction and the number of continuous collection points is equal to or greater than the data collection end determination threshold at the continuous collection points, the data collection unit A data collection end processing unit for terminating the collection of overlight data, and among the plurality of data collection end determination thresholds, the data collection end determination threshold corresponding to the most rearmost region of the paper sheet is It is characterized in that it is smaller than the threshold value for determining the end of data collection corresponding to other areas.
  • the optical sensor includes an optical line sensor in which a plurality of pixels are arranged in a width direction orthogonal to the transport direction.
  • the present invention is the above invention, wherein the recording unit further records a medium presence / absence determination threshold value, and the determination unit is based on the transmitted light data for the plurality of columns of pixels and the medium presence / absence determination threshold value. For each column, light transmission or light shielding is determined.
  • the present invention is characterized in that, in the above invention, the transparent portion is provided from one end to the other end of the paper sheet in the width direction.
  • the present invention is the above invention, wherein the paper sheet information collection device is capable of collecting information on a plurality of types of paper sheets each having a transparent part, and the data collection end processing unit is Of the paper sheets, the plurality of data collection end determination thresholds are switched based on the length in the transport direction of the paper sheet having the shortest length in the transport direction.
  • the present invention is characterized in that, in the above invention, the data collection end processing unit switches the plurality of data collection end determination thresholds after the transparent portion is detected.
  • the present invention is the above invention, wherein the paper sheet information collection device is capable of collecting information on a plurality of types of paper sheets each having a transparent portion, and the data collection end processing section is The plurality of data collection end determination thresholds are switched based on the type of the data collection.
  • the present invention is the above invention, wherein the data collection end processing unit corresponds to a data collection corresponding to a region other than the region on the most rear end side of the paper sheet among the plurality of data collection end determination thresholds.
  • the transmission of the transmitted light data by the optical sensor is terminated based on a termination determination threshold.
  • the present invention is the above invention, wherein the data collection end processing unit sets the data collection end determination threshold corresponding to the foremost region of the paper sheet without switching the plurality of data collection end thresholds. Based on this, the collection of the transmitted light data by the optical sensor is terminated.
  • the present invention is the above invention, wherein the paper sheet information collecting device is capable of collecting information on a plurality of types of paper sheets each having a transparent portion, and the recording section is provided for each type of the paper sheets.
  • the data collection end determination threshold set in the above is recorded, and the data collection end processing unit switches a plurality of data collection end determination thresholds according to the type of the paper sheet.
  • the present invention is a paper sheet information collection method for collecting information on paper sheets having a transparent portion, wherein the paper sheets to be transported are scanned in a transport direction, and a plurality of sampling points in the transport direction are collected.
  • the transmission light data collection in the data collection step is terminated, and among the plurality of data collection end determination threshold values, the most rear end region of the paper sheet
  • the data collection end determination threshold value corresponding to is smaller than the data collection end determination threshold value corresponding to another area.
  • the paper sheet information collecting apparatus and the paper sheet information collecting method of the present invention while suppressing the data collected excessively after detecting the trailing edge of the paper sheet, the trailing edge of the paper sheet having a transparent portion is detected. False detection can be reduced.
  • FIG. 1 is a schematic perspective view illustrating an appearance of a paper sheet processing apparatus according to Embodiment 1.
  • FIG. It is a schematic diagram which shows the structure of the paper sheet information collection device which concerns on Embodiment 1, (a) is the figure which looked at the paper sheet information collection device from the side, (b) is paper sheet information. It is the figure which looked at the upper part of the collection device from the lower side (Z-axis negative direction side), and (c) is the figure which looked at the lower part of the paper sheet information collection device from the upper side (Z-axis positive direction side). It is a functional block diagram of the paper sheet information collection device according to the first embodiment.
  • Embodiment 1 Exemplary embodiments of a paper sheet information collection device and a paper sheet information collection method according to the present invention will be described below in detail with reference to the accompanying drawings.
  • the paper sheet information collecting apparatus and the paper sheet information collecting method according to the present invention can be used in various fields, but in this embodiment, the type and authenticity of paper sheets are identified, and the paper sheets In the case of being applied to a paper sheet identification device using a paper sheet image and a paper sheet processing device using the paper sheet identification device in order to read characters printed on the paper Give an explanation. That is, in this embodiment, an embodiment of a paper sheet information collecting apparatus and a paper sheet information collecting method that collect image information as paper sheet information will be described.
  • the paper sheet processing apparatus 100 is used to perform a paper sheet deposit / withdrawal process, and includes a paper sheet deposit port 101, a paper sheet dispensing port 102, and the like. , An operation display unit 103 and a paper sheet identification device (not shown).
  • the operation display unit 103 is an input device for inputting various types of information necessary for using the paper sheet processing apparatus 100, and is also an output unit for outputting various types of information to the display screen.
  • the paper sheet identification apparatus is used to capture images of banknotes, checks, gift certificates, and the like inside the paper sheet processing apparatus 100.
  • the paper sheet identification apparatus uses a paper sheet image captured by a paper sheet information collecting apparatus including an optical line sensor, and uses a paper sheet type (denomination in the case of banknotes).
  • a paper sheet type denomination in the case of banknotes.
  • it has the function of reading the serial number of a banknote, the character printed on the valuable medium, etc. using the image of paper sheets.
  • the paper sheet information collecting apparatus 10 includes a sensor unit 11 including various sensors according to the identification process of the paper sheet 1 to be processed.
  • the sensor unit 11 acquires optical image information of the timing sensor 12, the reflection light source 13 and the transmission light source 14 that irradiate the paper sheet 1 with light such as infrared light and visible light, and the paper sheet 1.
  • the optical line sensor 20 is provided.
  • the sensor unit 11 is provided with a plurality of rollers 31 so that the paper sheet 1 can move in the conveyance path 15.
  • the rollers 31 are driven by a driving device (not shown) such as a motor, and the conveyance unit 30. Configure. When each roller 31 is rotationally driven by the drive device, the paper sheet 1 that has entered the device 10 from the right side of the sensor unit 11 is conveyed in the X-axis direction through the sensor unit 11 and left of the sensor unit 11. Discharged from.
  • the timing sensor 12 detects the paper sheets 1 sequentially carried into the sensor unit 11.
  • a light reflection type or light transmission type optical sensor is usually used, but a sensor that mechanically detects the passage of the paper sheet 1 may be provided.
  • the sensor unit 11 may include a sensor other than the optical line sensor 20 and the timing sensor 12 as appropriate.
  • a sensor include a thickness detection sensor for measuring the thickness of the paper sheet 1 and paper.
  • a magnetic sensor that measures the magnetic properties of the leaf 1, a fluorescent sensor that measures the fluorescent ink portion of the paper 1 by irradiating ultraviolet light, and the like are suitable.
  • the optical line sensor 20 includes an image sensor 21 such as a CCD image sensor or a CMOS image sensor, and a rod lens array that guides light from the paper sheet 1 passing below to the image sensor 21. (Array of transparent cylindrical condensing lenses) 22 and a light guide 23.
  • the lower surface of the sensor case is a measurement window 24 made of a transparent material, and light irradiated through the measurement window 24 from the light guide 23 disposed along the rod lens array 22 is reflected by the paper sheet 1. The Then, the reflected light is received by the image sensor 21 through the measurement window 24 and the rod lens array 22.
  • the optical line sensor 20 has a line shape arranged in the Y-axis direction, and a plurality of light receiving elements (pixels) 25 such as photodiodes are arranged in the Y-axis direction.
  • the image sensor 21 is configured.
  • a light guide 23 and a rod lens array 22 are arranged so as to correspond to the imaging element 21.
  • a reflection light source 13 such as an LED is disposed adjacent to the side surface of the light guide 23, and the light from the reflection light source 13 enters the light guide 23.
  • the light guide 23 emits light toward the paper sheet 1 by emitting the incident light toward the negative Z-axis direction while guiding the incident light toward the negative Y-axis.
  • the light source 13 for reflection is comprised by several LED etc. which can irradiate the light of a different wavelength range, for example, and can irradiate the light (for example, green light and infrared light) of the selected wavelength range. .
  • a transmissive light source 14 is provided.
  • the light from the transmissive light source 14 enters the light guide 16, and the light guide 16 emits the incident light to the Z-axis positive direction side while guiding the incident light to the Y-axis negative direction side. It is designed to irradiate with light.
  • the upper surface of the case in which the light guide 16 is housed is an irradiation window 17 made of a transparent material, and light passing through the light guide 16 and the irradiation window 17 from the transmission light source 14 is irradiated toward the paper sheet 1.
  • the transmissive light source 14 is composed of, for example, a plurality of LEDs that can irradiate light in different wavelength ranges, and can radiate light in selected wavelength ranges (for example, green light and infrared light). .
  • the imaging element 21 that receives the light reflected from the paper sheet 1 and the light transmitted through the paper sheet 1 is the entire surface of the passing paper sheet 1 as shown in FIGS. 2 (b) and 2 (c).
  • the reflection image and the transmission image are arranged so as to be acquired.
  • the optical line sensor 20 scans the transported paper sheet 1 in the transport direction and images the entire surface of the paper sheet 1. More specifically, the optical line sensor 20 sequentially repeats the imaging of the linear imaged area of the paper sheet 1 over the entire Y-axis direction for each collected line with respect to the paper sheet 1 being conveyed. The entire sheet 1 is imaged.
  • the collection line corresponds to the collection point.
  • the paper sheet information collecting apparatus 10 that controls the light source 13 for reflection, the light source 14 for transmission, and the optical line sensor 20 will be described.
  • the paper sheet information collection device 10 includes a control unit 40 and a storage unit 50 in addition to the configuration illustrated in FIG. 2.
  • a control unit 40 composed of a logic device such as an FPGA (Field Programmable Gate Array) includes a data collection unit 41, a binarization processing unit 42, a determination unit 43, a data collection end processing unit 44, a light source control unit 45, and sensor control. Unit 46 and medium management unit 47.
  • FPGA Field Programmable Gate Array
  • a system clock that is a basic frequency of operation of each unit is input to the control unit 40 from the outside of the apparatus 10, and the control unit 40 determines and executes the timing and operation time of each operation using the system clock.
  • the storage unit 50 is used for storing data such as various threshold values, and is also used for storing reflection image data and transmission image data. The various threshold values stored in the storage unit 50 can be rewritten from the outside via a communication interface (not shown).
  • the data collection unit 41 sequentially collects output data of the optical line sensor 20 including reflected light data and transmitted light data for each collection line, performs predetermined processing on the collected output data, and processes the processed data as a reflected image.
  • Data and transmission image data are stored in the storage unit 50. Based on these data, a reflection image and a transmission image of the paper sheet 1 are generated and used for processing such as denomination identification.
  • the binarization processing unit 42 binarizes the transmission image data generated by the data collection unit 41 for each pixel based on the binarization threshold value 51 recorded in the storage unit 50. That is, each pixel of the transmissive image is replaced with a light shielding state (black) or a transmissive state (white). As a result, the transmission image of the paper sheet 1 represents the transmission state in the areas of the clear windows 2a and 2b, which will be described later, and represents the light shielding state in the other areas.
  • the determination unit 43 determines whether light is transmitted or blocked in each sampling line, and there is no sheet 1 in each sampling line. Determine if it is in a state.
  • the data collection end processing unit 44 terminates the collection of output data of the optical line sensor 20 by the data collection unit 41 when predetermined conditions (1) to (3) described later are met.
  • the light source control unit 45 has a function of controlling lighting of the light sources 13 and 14. In order to capture individual paper sheet images by the light sources 13 and 14, dynamic lighting control is performed to turn on the light sources 13 and 14 in order.
  • the sensor control unit 46 has a function of controlling light reception by the image sensor 21 in accordance with the lighting timing of the light sources 13 and 14 controlled by the light source control unit 45. In addition, the sensor control unit 46 has a function of controlling the timing sensor 12, and further, based on the output signal of the timing sensor 12, the timing of starting the collection of output data of the optical line sensor 20 by the data collection unit 41. A data collection start signal for determination is generated.
  • the storage unit 50 is configured by a storage device such as a volatile or nonvolatile memory or a hard disk, and is used to store various data necessary for processing performed by the paper sheet information collection device 10.
  • the communication interface has a function of receiving a signal from outside the paper sheet information collecting apparatus 10 and transmitting a signal from the paper sheet information collecting apparatus 10 to the outside. For example, by receiving a signal from the outside by the communication interface, the operation setting of the control unit 40 is changed, the software program and data stored in the storage unit 50 are updated, added and deleted, The acquisition information and determination result of the paper sheet 1 by the paper sheet information collecting apparatus 10 can be output to the outside.
  • clear windows 2 a and 2 b are formed in the lower left part and the right part of the paper sheet 1 as transparent parts 2 that can transmit light, respectively.
  • the clear window 2a is provided in an island shape and is surrounded by an opaque portion 3.
  • the clear window 2b is provided in a band shape, and the paper sheet 1 in the short direction (direction perpendicular to the transport direction). It is provided from one end to the other end.
  • the kind of paper sheet 1 is not specifically limited, For example, a banknote, a gift certificate, a check, securities, a card-like medium, etc. are mentioned.
  • Paper used for banknotes is mainly paper made from plant fiber, but paper made from synthetic fibers or synthetic resin sheets for the purpose of improving durability, water resistance, security, etc.
  • a polymer sheet may be used.
  • Banknotes made from polymer sheets are called polymer banknotes.
  • the paper sheet 1 is preferably formed from a polymer sheet.
  • the paper sheet 1 may be a paper sheet (hybrid paper sheet) in which the transparent portion 2 is formed from a polymer sheet and the opaque portion 3 is formed from paper made of plant fiber or synthetic fiber. Note that an optical variable element such as a rainbow hologram may be partially formed in the transparent portion 2.
  • the process by the control unit 40 will be described in more detail with reference to FIG.
  • a case will be described in which the paper sheet 1 passes through the conveyance path 15 so that the longitudinal direction is along the conveyance direction. Since the length of the optical line sensor 20 in the main scanning direction is set to be approximately the same as the width of the conveyance path 15 that is larger than the width of the paper sheet 1 in the short direction, the optical line sensor 20 defines the conveyance path 15. An image of the entire passing paper sheet 1 can be acquired. In FIG. 5A, the banknote is conveyed leftward.
  • the data collection unit 41 Based on the data collection start signal, the data collection unit 41 starts collecting output data (output signal) of the optical line sensor 20, that is, reading, and sequentially collects output data for each collection line. At this time, the output data for one line includes transmitted light data and reflected light data. Further, the data collection unit 41 allows the paper sheet 1 to be the optical line sensor 20 so that an image of the front end of the paper sheet 1 can be generated even when the paper sheet 1 is transported along the transport path 15 in a skewed state. Output data for an arbitrary number of lines, for example, several lines, is collected from before passing through.
  • the data collection unit 41 performs predetermined processing on the collected transmitted light data and reflected light data for each collection line, and stores the processed transmitted light data and reflected light data in the storage unit 50.
  • An example of the process performed by the data collection unit 41 is a process that counts the output data every several pixels. Thereby, the resolution of the image of each sampling line may be made smaller than the resolution of the optical line sensor 20 in the main scanning direction.
  • the collection of output data is terminated in any of the following (1) to (3).
  • the determination unit 43 determines whether or not there is a sheet 1 for each sampling line after a predetermined sampling line (for example, a few lines). Specifically, the determination unit 43 refers to the transmission image data binarized by the binarization processing unit 42, and determines the number of pixels in a light-shielded state and the medium presence recorded in the storage unit 50 for each sampling line. Compared with the threshold value for use 52, a sampled line in which the number of pixels in the light-shielded state is equal to or greater than the threshold value for determining presence of medium 52 is determined as a paper sheet presence state.
  • the determination unit 43 determines whether or not there is no sheet 1 for each collection line with respect to the collection lines after the collection line in which the sheet is present. Specifically, the determination unit 43 refers to the transmission image data binarized by the binarization processing unit 42, and determines the number of light-shielded pixels and the absence of medium recorded in the storage unit 50 for each sampling line. Compared with the threshold value 53, a sampled line in which the number of pixels in the light-shielded state is equal to or less than the medium absence threshold value 53 is determined as a paper sheet absence state.
  • the medium presence determination threshold value 52 and the medium absence determination threshold value 53 are set so that the sampling line including the island-shaped clear window 2a is determined to be in the paper sheet presence state. Therefore, it is possible to prevent the collection line including the clear window 2a from being determined as having no paper sheets.
  • the collection line that images the belt-shaped clear window 2b and the rear line of the rear end of the paper sheet 1, that is, the sampling line that captures only the background 4 are determined by the determination unit 43 to be in the absence of paper sheet state.
  • the medium presence threshold value 52 and the medium absence determination threshold value 53 set for each type of the paper sheet 1 are used. Is preferably stored in the storage unit 50, and the determination unit 43 preferably refers to the medium presence determination threshold value 52 and the medium absence determination threshold value 53 according to the type of the paper sheet 1. That is, it is preferable that the determination unit 43 switches the medium presence determination threshold value 52 and the medium absence determination threshold value 53 to be referred to based on the identification target country and the type of the paper sheet 1.
  • the data collection end processing unit 44 counts the number (total) of the collection lines determined to be in the absence of paper sheet, and any one of the two data collection end determination thresholds 54 and 55 recorded in the storage unit 50. Compare with. When the number of continuous sampling lines determined to be in the absence of paper sheet exceeds the comparison target data collection end determination threshold value 54 or 55, that is, one is added to the comparison target data collection end determination threshold value 54 or 55. The data collection end processing unit 44 determines that the trailing edge of the paper sheet 1 has been detected, and terminates the collection of output data of the optical line sensor 20 by the data collection unit 41.
  • which of the data collection end determination thresholds 54 and 55 is to be compared is determined according to the collection line determined to be in the absence of paper sheet, for example, a region before the preset specific line C
  • the data collection end determination threshold value 54 is applied to A (line)
  • the data collection end determination threshold value 55 is applied to the area B (line) after the specific line C.
  • the specific line C is set according to the position of the belt-like clear window 2b and the size of the sheet 1 to be collected, and is set so that the clear window 2b does not enter the area B after the specific line C. Yes.
  • the threshold value 54 for determining the end of data collection is set corresponding to the area A on the front end side of the sheet 1, and the width of the clear window 2 b in the short direction (the clear window in the longitudinal direction of the sheet 1). 2b) is set larger than the number of lines. For this reason, even if the collection line in the absence of paper sheets by the clear window 2 b continues, the data collection end processing unit 44 does not determine the clear window 2 b as the trailing edge of the paper sheet 1.
  • the data collection end determination threshold value 54 may be a number corresponding to several tens of lines, for example.
  • the data collection end determination threshold 55 is set corresponding to the area B on the rear end side of the paper sheet 1 and is set smaller than the other thresholds 54. For this reason, when there are consecutive collection lines in the absence of sheets due to the passage of the rear end of the sheet 1, the number (total) of these collection lines exceeds the small threshold 55 for determining completion of data collection. At this point, the data collection end processing unit 44 determines that the trailing edge of the sheet 1 has been detected, and ends the collection of output data of the optical line sensor 20 by the data collection unit 41.
  • the data collection end determination threshold 55 may be a number corresponding to several lines, for example.
  • the data collection end processing unit 44 ends the data collection to be referred to based on the length in the transport direction of the paper sheet 1 having the shortest length in the transport direction among all types of paper sheets 1 to be collected.
  • the determination thresholds 54 and 55 may be switched, that is, the reference threshold may be switched from the data collection end determination threshold 54 to the data collection end determination threshold 55. More specifically, it is preferable to set the specific line C within a range in which the length in the transport direction does not exceed the length of the paper sheet 1 in the transport direction.
  • the specific line C set for each type of the paper sheet 1 is recorded in the storage unit 50.
  • the data collection end processing unit 44 preferably refers to the specific line C corresponding to the type of the paper sheet 1. That is, it is preferable that the data collection end processing unit 44 switches the specific line C to be referred to based on the identification target country and the type of the paper sheet 1.
  • threshold values 54 and 55 for data collection end determination set for each type of paper sheet 1 are recorded in the storage unit 50, and the data collection end processing unit 44 stores the type of paper sheet 1. It is preferable to refer to the threshold values 54 and 55 for determining the end of data collection according to the above.
  • the data collection end processing unit 44 switches the data collection end determination thresholds 54 and 55 to be referred to based on the identification target country and the type of the paper sheet 1, that is, the reference threshold is changed to the data collection end determination threshold. It is preferable to switch from 54 to the threshold 55 for determining the end of data collection.
  • the paper sheet information collection device 10 may further include a detection unit that detects the presence or absence of the transparent unit 2 such as the clear window 2b, and the data collection end processing unit 44 is the transparent unit 2, preferably a belt-shaped clear unit. After the window 2b is detected, the data collection end determination thresholds 54 and 55 to be referenced may be switched, that is, the reference threshold may be switched from the data collection end determination threshold 54 to the data collection end determination threshold 55. Good.
  • the data collection end processing unit 44 does not detect the trailing edge of the paper sheet 1 and collects data when the number of collected lines (total) reaches the maximum number of lines that can be collected and stored.
  • the collection of output data of the optical line sensor 20 by the unit 41 is terminated.
  • the maximum number of collected lines is appropriately set according to the capacity of the storage unit 50, etc., but is set to a value that is at least larger than the number of lines corresponding to the longitudinal width of the paper sheet 1.
  • the data collection end processing unit 44 terminates the collection of the output data of the optical line sensor 20 by the data collection unit 41 when a collection line with a paper sheet is not generated until the specified line is reached.
  • the specified number of lines can be set as appropriate within a range not exceeding the maximum number of sampling lines, and may be several tens of lines, for example.
  • Embodiment 2 In the present embodiment, features unique to the present embodiment will be mainly described, and the description overlapping with the first embodiment will be omitted. Moreover, in this embodiment and Embodiment 1, the same code
  • the present embodiment is substantially the same as the first embodiment except for the points described below.
  • a timing sensor is used as an optical sensor. That is, in the present embodiment, a method for collecting information such as the position and size of a paper sheet as the paper sheet information will be described.
  • two light transmission type optical sensors 12a and 12b are disposed on the transport path 15 as the timing sensor 12, and the longitudinal direction is along the transport direction. A case where the paper sheet 1 passes through the conveyance path 15 will be described.
  • the number of light transmission type optical sensors is not particularly limited, and may be three or more.
  • the optical sensor 12a is provided at a position where the clear window 2b passes, and the optical sensor 12b is provided at a position where the clear windows 2a and 2b pass. Therefore, the clear window 2b is detected by the optical sensor 12a, and the clear windows 2a and 2b are detected by the optical sensor 12b.
  • the banknote is conveyed leftward.
  • the output signals (detection signals) of the optical sensors 12a and 12b are shown in order from the top, and the horizontal axis is the distance or position (collection point), and the vertical axis is the top.
  • the side is a signal indicating a transmission state, and the lower side is a signal indicating a light shielding state.
  • the clear window 2b passes through the position of the optical sensor 12a. Therefore, as shown in FIG. 6 (b), the detection signal of the optical sensor 12a
  • the light shielding level is obtained at the sampling point reaching the position of the optical sensor 12a
  • the transmission level is obtained at the sampling point where the tip of the clear window 2b reaches the position of the optical sensor 12a
  • the rear end of the clear window 2b reaches the position of the optical sensor 12a.
  • the transmission level is reached.
  • the detection signal of the optical sensor 12b is a sheet of paper. 1 becomes the light shielding level at the sampling point where the optical sensor 12b reaches the position of the optical sensor 12b, becomes the transmission level at the sampling point where the tip of the clear window 2a reaches the position of the optical sensor 12b, and the rear end of the clear window 2a becomes the optical sensor 12b.
  • the data collection unit 41 starts collecting output data (output signals) of the optical sensors 12a and 12b, that is, reading, based on an instruction from the paper sheet processing apparatus 100, and collects output data for each collection point.
  • the data collection unit 41 stores the collected output data in the storage unit 50.
  • the determination unit 43 determines whether or not there is a sheet 1 for each collection point based on the collected output data of the optical sensors 12a and 12b.
  • the determination unit 43 determines that the collection point at which the signal level of at least one optical sensor 12a and / or 12b is a light shielding level is a paper sheet present state, and the signal levels of all optical sensors 12a and 12b are the transmission level.
  • the collected sampling point is determined to have no paper sheet.
  • the data collection end processing unit 44 counts the number (total) of the collection points determined to be in the absence of paper sheets, and the relatively large data collection end determination threshold 54 recorded in the storage unit 50 or relatively. A small data collection end determination threshold 55 is compared. Then, as in the first embodiment, when the number of consecutive collection points determined to have no paper sheet exceeds the data collection end determination threshold 55, the data collection end processing unit 44 It is determined that the end has been detected, and the collection of output data of the optical sensors 12a and 12b by the data collection unit 41 is terminated.
  • the paper sheet information collection device 10 uses the storage unit 50 that records a plurality of data collection end determination thresholds set according to a plurality of collection points, and the determination unit 43 performs light.
  • the collection of transmitted light data by the data collection unit 41 is terminated when the collection points determined to be transmitted are continuous in the transport direction and the number of continuous collection points is equal to or greater than the data collection end determination threshold at the collection points.
  • a data collection end determination threshold value 55 corresponding to the most rearmost region of the paper sheet among the plurality of data collection end determination threshold values corresponds to other regions.
  • a small threshold 55 is used for detecting the trailing edge of the paper sheet 1, while large data other than the threshold 55 is used for detecting the transparent portion. It can be used preparative end decision threshold. Therefore, it is possible to reduce the occurrence of erroneous detection of the rear end of the paper sheet 1 having the transparent portion 2 while suppressing extraneous transmitted light data collected after the rear end is detected.
  • the information of the paper sheet 1 can be collected without shortening the maximum length of the paper sheet 1 from which transmitted light data can be collected in the transport direction as compared with the conventional case.
  • the information of the paper sheet 1 can be collected without making the minimum detectable chain interval longer than in the past.
  • the case where the data collection end determination thresholds 54 and 55 set for the two areas divided in the transport direction are used has been described.
  • the collection of output data of the optical line sensor 20 by the data collection unit 41 may be terminated based on three or more data collection end determination threshold values set for the three or more divided areas.
  • the case where output data collection is terminated based on the smallest data collection end determination threshold 55 among the plurality of data collection end determination thresholds has been described. Is the sampling of output data of the optical line sensor 20 by the data sampling unit 41 based on a data sampling end determination threshold other than the smallest data sampling end determination threshold 55 among a plurality of data sampling end determination thresholds.
  • the data collection unit 41 may collect the output data of the optical line sensor 20 based on the data collection end determination threshold value set corresponding to the front end region of the paper sheet 1. It may be terminated.
  • the present invention is a useful technique for collecting information on paper sheets having a transparent portion.
  • Paper sheet 2 Transparent part 2a, 2b: Clear window 3: Opaque part 4: Background 10: Paper sheet information collecting device 11: Sensor unit 12: Timing sensor 12a, 12b: Optical sensor 13: Light source 14 for reflection : Light source for transmission 15: Transport path 16: Light guide 17: Irradiation window 20: Optical line sensor 21: Imaging element 22: Rod lens array 23: Light guide 24: Measurement window 25: Light receiving element (pixel) 30: Conveying unit 31: Roller 40: Control unit 41: Data collection unit 42: Binarization processing unit 43: Determination unit 44: Data collection end processing unit 45: Light source control unit 46: Sensor control unit 47: Medium management unit 50 : Storage unit 51: threshold for binarization 52: threshold for determination of presence of medium 53: threshold for determination of absence of medium 54, 55: threshold for determination of end of data collection 100: paper sheet processing apparatus 101: paper sheet deposit port 102: Paper sheet outlet 103: Operation display part A, B: Area C: Specific line N: Maximum sampling line

Abstract

L'invention est un dispositif de collecte d'informations de feuilles de papier qui collecte, par exemple, des informations concernant une feuille de papier ayant une partie transparente, le dispositif de collecte d'informations de feuille de papier comprenant : un capteur optique permettant de générer des données de lumière transmise pour une pluralité de points de collecte dans la direction de transport de la feuille de papier ; une unité de collecte de données permettant de collecter les données de lumière transmises du capteur optique ; une unité de détermination permettant de déterminer la transmission ou le blocage de la lumière à chaque point de collecte ; une unité d'enregistrement permettant d'enregistrer une pluralité de valeurs seuils définies en fonction de la pluralité de points de collecte ; et une unité de traitement de fin de collecte de données permettant de terminer la collecte des données de lumière transmises par l'unité de collecte de données lorsque les points de collecte auxquels l'unité de détermination a déterminé la lumière devant être transmise sont continus dans la direction de transport. Lorsque le nombre de points de collecte continus est égal ou supérieur à la valeur seuil pour les points de collecte continus, la valeur seuil de la pluralité de valeurs seuils qui correspond à la zone située à l'extrémité arrière de la feuille de papier est inférieure à la valeur seuil correspondant à d'autres zones.
PCT/JP2016/065366 2016-05-24 2016-05-24 Dispositif de collecte d'informations de feuilles de papier et procédé de collecte d'informations de feuilles de papier WO2017203614A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2016407875A AU2016407875B2 (en) 2016-05-24 2016-05-24 Sheet information collection device and sheet information collection method
EP16903096.2A EP3467794B1 (fr) 2016-05-24 2016-05-24 Dispositif de collecte d'informations de feuilles de papier et procédé de collecte d'informations de feuilles de papier
PCT/JP2016/065366 WO2017203614A1 (fr) 2016-05-24 2016-05-24 Dispositif de collecte d'informations de feuilles de papier et procédé de collecte d'informations de feuilles de papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/065366 WO2017203614A1 (fr) 2016-05-24 2016-05-24 Dispositif de collecte d'informations de feuilles de papier et procédé de collecte d'informations de feuilles de papier

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WO2017203614A1 true WO2017203614A1 (fr) 2017-11-30

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AU (1) AU2016407875B2 (fr)
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JP7391668B2 (ja) 2019-01-11 2023-12-05 グローリー株式会社 画像取得装置、紙葉類処理装置、紙幣処理装置及び画像取得方法

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WO2009075015A1 (fr) 2007-12-10 2009-06-18 Glory Ltd. Appareil de traitement de billets de banque et procédé de traitement de billets de banque
JP2013191083A (ja) * 2012-03-14 2013-09-26 Glory Ltd 紙葉類繰出機構および紙葉類繰出方法
JP2015138437A (ja) * 2014-01-23 2015-07-30 株式会社日本アレフ 検知装置
JP2015141442A (ja) * 2014-01-27 2015-08-03 グローリー株式会社 紙幣処理装置及び紙幣処理方法

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WO2009075015A1 (fr) 2007-12-10 2009-06-18 Glory Ltd. Appareil de traitement de billets de banque et procédé de traitement de billets de banque
JP2013191083A (ja) * 2012-03-14 2013-09-26 Glory Ltd 紙葉類繰出機構および紙葉類繰出方法
JP2015138437A (ja) * 2014-01-23 2015-07-30 株式会社日本アレフ 検知装置
JP2015141442A (ja) * 2014-01-27 2015-08-03 グローリー株式会社 紙幣処理装置及び紙幣処理方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7391668B2 (ja) 2019-01-11 2023-12-05 グローリー株式会社 画像取得装置、紙葉類処理装置、紙幣処理装置及び画像取得方法

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AU2016407875B2 (en) 2019-10-10
EP3467794A4 (fr) 2020-02-05
EP3467794B1 (fr) 2022-10-26
EP3467794A1 (fr) 2019-04-10

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