WO2010013697A1 - 紙葉類処理装置 - Google Patents
紙葉類処理装置 Download PDFInfo
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- WO2010013697A1 WO2010013697A1 PCT/JP2009/063399 JP2009063399W WO2010013697A1 WO 2010013697 A1 WO2010013697 A1 WO 2010013697A1 JP 2009063399 W JP2009063399 W JP 2009063399W WO 2010013697 A1 WO2010013697 A1 WO 2010013697A1
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- light
- paper sheet
- banknote
- unit
- pixel
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Classifications
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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
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
Definitions
- the present invention relates to a paper sheet processing apparatus that determines the authenticity of banknotes, gift certificates, coupon tickets, and the like (hereinafter collectively referred to as paper sheets).
- a banknote handling apparatus that handles banknotes, which is an aspect of paper sheets, determines the authenticity of a banknote inserted by a user from a banknote insertion slot, and determines various values depending on the banknote value determined to be authentic. It is incorporated in service devices that provide products and services, such as game media lending machines installed in game halls, or vending machines and ticket machines installed in public places.
- the authenticity determination process of a banknote is irradiated with light with respect to the banknote which moves a banknote conveyance path, for example, as disclosed by patent document 1, and the transmitted light and reflected light from a banknote are received with a light receiving sensor. This is done by detecting and comparing this with regular data stored in dictionary data. Specifically, transmitted light data and reflected light data from the bills to be conveyed are acquired, and this is converted into, for example, information on brightness, and comparison processing is performed with regular data.
- JP-A-6-60242 JP-A-6-60242
- the above-mentioned transmitted light data and reflected light data may have different brightness depending on the state of the bill.
- the case where moisture adheres to the surface of a bill that is fibrous can be considered.
- banknotes and the like may have surface irregularities due to fibers, but this may be the case when they are optically smoothed.
- irregular reflection is reduced in the smoothed portion. That is, when moisture adheres to the banknote and the surface is smoothed, irregular reflection on the banknote surface decreases, so the amount of transmitted light of the banknote increases, and the transmitted light data increases in brightness (light intensity). End up.
- about reflected light data since the irregular reflection in the banknote surface reduces and the transmitted light amount of a banknote increases, the brightness (light intensity
- a paper sheet processing apparatus capable of preventing a decrease in authenticity determination accuracy even when a state change occurs in the paper sheet due to adhesion of moisture or the like.
- a paper sheet processing apparatus includes: a light emitting unit that irradiates light to a paper sheet; a transmitted light that is irradiated from the light emitting unit and transmitted through the paper sheet; and a paper sheet A light receiving unit that receives reflected light that has been reflected, and a conversion unit that converts transmitted light and reflected light received by the light receiving unit, for each pixel including color information having brightness and having a predetermined size as one unit.
- a transmission image composed of a plurality of pixels converted by the conversion unit from the transmission light received by the light receiving unit, and a plurality of pixels converted by the conversion unit from the reflected light received by the light receiving unit
- a storage unit that stores the reflected image
- an authenticity determination processing unit that determines the authenticity of the paper sheet based on each image stored in the storage unit, brightness of pixels in a predetermined region of the transmission image, and transmission Reflection corresponding to a predetermined area of the image Based on the comparison result between the brightness of pixels in an image, having a exclude discriminator the predetermined area from the target of authenticity determination.
- FIG. 1 shows the structure of the banknote processing apparatus which concerns on this embodiment, and is a perspective view which shows the whole structure.
- the perspective view which shows the state which opened the opening-and-closing member with respect to the main body frame of an apparatus main body.
- the right view which showed roughly the conveyance path
- the right view which shows schematic structure of the power transmission mechanism for driving the press board arrange
- the left view which shows schematic structure of the drive source for driving a banknote conveyance mechanism, and a driving force transmission mechanism.
- the block diagram which shows the structure of the control means which controls the drive of drive members, such as a banknote conveyance mechanism and a banknote reading means.
- the flowchart explaining a conveyance path open process procedure. 7 is a flowchart for explaining a skew correction operation processing procedure.
- region of a banknote is shown.
- FIG. 1 to FIG. 5 are diagrams showing the configuration of the banknote handling apparatus according to the present embodiment
- FIG. 1 is a perspective view showing the overall configuration
- FIG. FIG. 3 is a right side view schematically showing a transport path of a bill inserted from the insertion slot
- FIG. 4 is a diagram for driving a pressing plate disposed in the bill housing part.
- FIG. 5 is a right side view illustrating a schematic configuration of the power transmission mechanism
- FIG. 5 is a left side view illustrating a schematic configuration of a driving source and a driving force transmission mechanism for driving the bill conveyance mechanism.
- the banknote handling apparatus 1 of the present embodiment is configured to be incorporated into various gaming machines such as a slot machine, for example, and is provided in the apparatus main body 2 and the apparatus main body 2 to stack and accommodate a large number of banknotes. And a storage unit (storage stacker; safe) 100 that can be used.
- the housing 100 may be detachable from the apparatus main body 2.
- the apparatus main body 2 can be obtained by pulling the handle 101 provided on the front surface in a state where a lock mechanism (not shown) is released. It is possible to remove from.
- the apparatus main body 2 has a main body frame 2A and an opening / closing member 2B configured to be opened and closed with one end portion as a rotation center with respect to the main body frame 2A.
- the main body frame 2 ⁇ / b> A and the opening / closing member 2 ⁇ / b> B when the opening / closing member 2 ⁇ / b> B is closed with respect to the main body frame 2 ⁇ / b> A, a gap in which bills are conveyed to the opposite portions (banknote conveyance path 3). Is formed, and the bill insertion slot 5 is formed on the front exposed side of both so as to coincide with the bill transport path 3.
- the bill insertion slot 5 has a slit-like opening so that it can be inserted into the apparatus main body 2 from the short side of the bill.
- a banknote transport mechanism 6 that transports banknotes along the banknote transport path 3
- an insertion detection sensor 7 that detects a banknote inserted into the banknote insertion slot 5
- an insertion detection sensor 7 is installed on the downstream side of the bill 7 and reads the information of the bill in the transported state
- the skew correction mechanism 10 for accurately positioning and transporting the bill relative to the bill reading means 8, and the bill is skewed.
- a movable piece passage detection sensor 12 that detects that a pair of movable pieces constituting the correction mechanism has passed, and a discharge detection sensor 18 that detects that a bill has been discharged to the bill housing part 100 are provided.
- the banknote transport path 3 extends from the banknote insertion slot 5 toward the back side, extends from the first transport path 3A and the first transport path 3A toward the downstream side, and enters the first transport path 3A.
- a second conveyance path 3B inclined at a predetermined angle and downward is provided.
- the downstream side of the second transport path 3B is bent in the vertical direction, and a discharge port 3a for discharging the banknote is formed in the banknote accommodating part 100 at the downstream end thereof, and discharged from here.
- the bill is fed into the inlet (receiving port) 103 of the bill housing part 100 in the vertical direction.
- the banknote transport mechanism 6 is a mechanism that enables the banknote inserted from the banknote insertion slot 5 to be transported along the insertion direction, and allows the banknote in the inserted state to be transported back toward the banknote insertion slot 5.
- the banknote transport mechanism 6 is driven by a motor 13 (see FIG. 5) that is a drive source installed in the apparatus main body 2 and is rotated by the motor 13 so that the banknote transport path 3 has a predetermined interval along the banknote transport direction.
- the transport roller pairs (14A, 14B), (15A, 15B), (16A, 16B), and (17A, 17B) are provided.
- the pair of transport rollers is installed so that a part thereof is exposed in the banknote transport path 3, and the transport rollers 14 ⁇ / b> B, 15 ⁇ / b> B, 16 ⁇ / b> B, and 17 ⁇ / b> B are all driven below the banknote transport path 3 by the motor 13.
- the transport rollers 14A, 15A, 16A, and 17A installed on the upper side are pinch rollers that are driven by these rollers.
- the conveyance roller pair (14A, 14B) that first clamps the banknote inserted from the banknote insertion slot 5 and transports it to the back side is installed at one central position of the banknote transport path 3, as shown in FIG.
- the transport roller pairs (15A, 15B), (16A, 16B), and (17A, 17B) that are sequentially arranged on the downstream side thereof are spaced apart along the width direction of the banknote transport path 3. Two places are installed.
- the upper conveyance roller 14A is in the state spaced apart from the lower conveyance roller 14B.
- the insertion detection sensor 7 detects this insertion, the upper transport roller 14A is driven toward the lower transport roller 14B to sandwich the inserted bill.
- the upper transport roller 14A is driven and controlled by a roller raising / lowering motor 70 (see FIG. 6) as a drive source so as to contact / separate from the lower transport roller 14B.
- a roller raising / lowering motor 70 see FIG. 6
- the upper transport roller 14 ⁇ / b> A is
- the load on the banknote is released away from the transport roller 14B and the skew correction process is completed, the upper transport roller 14A is driven again toward the lower transport roller 14B to pinch the banknote.
- the skew correction mechanism 10 includes a pair of left and right movable pieces 10A (only one side is shown) that performs skew correction, and the pair of left and right movable pieces 10A is driven by driving a motor 40 for the skew correction mechanism. It moves so that it may approach, and the correction process of the skew with respect to a banknote is performed by this.
- the conveyance rollers 14B, 15B, 16B, and 17B installed on the lower side of the above-described banknote conveyance path 3 are, as shown in FIG. 5, a motor 13 and a pulley installed at the end of the drive shaft of each conveyance roller. It is rotationally driven through 14C, 15C, 16C, and 17C. That is, a drive pulley 13A is installed on the output shaft of the motor 13, and the pulleys 14C, 15C, 16C, and 17C installed at the ends of the drive shafts of the respective transport rollers are connected to the drive pulley 13A.
- the drive belt 13B is wound between the two. A tension pulley is engaged with the drive belt 13B at an appropriate position to prevent looseness.
- the transport rollers 14B, 15B, 16B, and 17B are driven to rotate forward synchronously to transport bills in the insertion direction, and the motor 13 is driven to rotate backward. Then, the conveyance rollers 14B, 15B, 16B, and 17B are synchronously driven in reverse to convey the bill toward the bill insertion slot 5 side.
- the insertion detection sensor 7 generates a detection signal when a banknote inserted into the banknote insertion slot 5 is detected. When this detection signal is issued, the motor 13 is driven to rotate forward, and the banknote is inserted. Transport toward The insertion detection sensor 7 of the present embodiment is installed between the transport roller pair (14A, 14B) and the skew correction mechanism 10, and is configured by an optical sensor, for example, a retroreflective photosensor. However, other than that, it may be constituted by a mechanical sensor.
- the movable piece passage detection sensor 12 generates a detection signal when it is detected that the leading edge of the bill has passed through the pair of left and right movable pieces 10A constituting the skew correction mechanism 10, and this detection signal Is issued, the drive of the motor 13 is stopped, and the skew correction processing is performed.
- the movable piece passage detection sensor 12 of the present embodiment is installed on the upstream side of the bill reading means 8 and is constituted by an optical sensor or a mechanical sensor, similar to the insertion detection sensor.
- emission detection sensor 18 detects the trailing end of the banknote to pass, and detects that the banknote was discharged
- the unit 100 is disposed immediately before the receiving port 103.
- the discharge detection sensor 18 is also composed of an optical sensor or a mechanical sensor, like the insertion detection sensor.
- the bill reading means 8 reads the bill information of the bill conveyed with the skew corrected by the skew correction mechanism 10 and identifies its validity (authenticity).
- the banknote reading means 8 is configured to include a line sensor that performs reading by irradiating light from both sides of a banknote to be conveyed and detecting the transmitted light and reflected light by a light receiving unit. And installed in the first transport path 3A.
- the bill reading means 8 described above is disposed on the opening / closing member 2B side, and a light emitting unit 80 including a first light emitting unit 80a capable of irradiating infrared light and red light on the upper side of a conveyed bill, and a main body frame And a light emitting / receiving unit 81 disposed on the 2A side.
- the light receiving / emitting unit 81 is disposed adjacent to both sides of the light receiving unit 81a in the banknote transport direction, the light receiving unit 81a including the light receiving sensor facing the first light emitting unit 80a so as to sandwich the banknote (banknote transport path). And a second light emitting unit 81b that can emit infrared light and red light.
- the first light emitting unit 80a disposed opposite to the light receiving unit 81a functions as a light source for transmission.
- the first light emitting unit 80a is formed of a rectangular rod-shaped body made of synthetic resin that emits light from the LED element 80b attached to one end through a light guide 80c provided inside.
- the 1st light emission part of such composition is arranged in the shape of a line in parallel with light reception part 81a (light reception sensor), and is simple composition, and with respect to the whole conveyance path width direction range of the bill conveyed It becomes possible to irradiate uniformly as a whole.
- the light receiving unit 81a of the light receiving / emitting unit 81 is formed in a strip shape extending in the crossing direction with respect to the banknote transport path 3 and having a width that does not affect the sensitivity of a light receiving sensor (not shown) provided in the light receiving unit 81a. It is formed into a thin plate shape.
- the light receiving sensor is provided with a plurality of CCDs (Charge Coupled Devices) in the center of the light receiving portion 81a in the thickness direction, and condenses transmitted light and reflected light above the CCD.
- the line sensor is configured as a so-called line sensor in which a green lens array 81c is arranged in a line shape.
- the second light emitting unit 81b of the light emitting / receiving unit 81 functions as a light source for reflection.
- the second light emitting unit 81b is made of a synthetic resin that can uniformly irradiate light from the LED element 81d attached to one end through the light guide 81e provided inside. It is composed of a rectangular bar.
- the second light emitting unit 81b is also configured to be arranged in a line parallel to the light receiving unit 81a (line sensor).
- the second light emitting unit 81b can irradiate light toward the banknote at an elevation angle of 45 degrees, for example, and is disposed so that reflected light from the banknote is received by the light receiving unit 81a.
- the light emitted from the second light emitting unit 81b is incident on the light receiving unit 81a at 45 degrees, but the incident angle is not limited to 45 degrees and is uniform with respect to the surface of the banknote. If light can be irradiated, the installation state can be set as appropriate. For this reason, about the arrangement
- the second light emitting unit 81b is installed on both sides with the light receiving unit 81a in between so that light is irradiated from both sides at an incident angle of 45 degrees. This is because if there are scratches or folds on the banknote surface, and light is irradiated only from one side to the irregularities generated on these scratches or folds, the irregularities will inevitably become blocked by light. A spot may occur. For this reason, by irradiating light from both sides, it is possible to prevent shadows from being formed in the uneven portions, and to obtain image data with higher accuracy than irradiation from one side.
- the second light emitting unit 81b may be configured to be installed only on one side, and the configuration and arrangement of the light emitting unit 80 and the light receiving and emitting unit 81 described above are not limited to the present embodiment. It can be modified as appropriate.
- the image data obtained by the transmitted light (irradiated light of the first light emitting unit 80a) and reflected light (irradiated light of the second light emitting unit 81b) from the banknote acquired by the light receiving unit 81a is the image data related to the genuine note.
- the authenticity determination process is performed by comparing. In this case, since the genuine banknote has a region where the acquired image data differs depending on the wavelength of light to be irradiated (for example, visible light or infrared light), this point is used in the authenticity determination processing in the present embodiment.
- the authenticity of authenticity I try to raise more. That is, since red light and infrared light have different wavelengths, if transmitted light data or reflected light data from a plurality of lights having different wavelengths is used for determining the authenticity of a bill, it passes through a specific area between a genuine note and a counterfeit bill. Transmitted light and reflected light reflected from a specific region have properties that the transmittance and the reflectance are different. For this reason, in the above-mentioned light emission part (the 1st light emission part 80a and the 2nd light emission part 81b), it is trying to raise the identification accuracy of the authenticity of a banknote by using the light source of a some wavelength.
- a specific method for identifying the authenticity of a banknote is not described in detail because various received light data (transmitted light data, reflected light data) can be acquired depending on the wavelength of light irradiated on the banknote or the irradiation region.
- this watermark area when the image of the area is viewed with light of different wavelengths, the image looks very different, so this part is taken as a feature area, and transmitted light data and reflected light data in that feature area are acquired. It is conceivable to identify whether the bill to be identified is a genuine note or a counterfeit note by comparing it with the regular data in the same specific area of the genuine note stored in advance in a storage means such as a ROM. At this time, it is also possible to determine the characteristic area in accordance with the denomination and to set a predetermined weight to the transmitted light data and reflected light data in the characteristic area to further improve the accuracy of authenticity identification.
- the above-described light emitting units are controlled to be lighted at a predetermined interval, and transmitted light and reflected light when a bill passes are detected by the light receiving unit (line sensor) 81a. Is done.
- the light receiving unit (line sensor) 81a can acquire pixel data corresponding to the lightness (a plurality of pixel data including lightness and having a predetermined size as one unit). An image can be generated.
- the pixel data acquired by the line sensor is converted into data including color information having brightness for each pixel by a conversion unit described later.
- the color information for each pixel having lightness converted by the conversion unit is, for example, 1-byte information, which is a numerical value from 0 to 255 (for example, 0: black to 255: white) according to the lightness. It is assigned to each pixel.
- a predetermined area of the banknote is extracted, and color information for each pixel having the lightness included in the area and color information for each pixel having the lightness of the same area of the genuine note are obtained. It is possible to identify authenticity by using a correlation coefficient calculated by substituting these into an appropriate correlation equation.
- an analog waveform can be generated from transmitted light data or reflected light data, and authenticity can be identified by comparing the shapes of the waveforms.
- region of a banknote may be detected and the process which identifies authenticity using this length information may be provided.
- a predetermined area is set in advance for a bill to be inserted, and a plurality of parts converted from transmitted light received by the light receiving unit 81a with respect to the set area are converted by the conversion unit.
- a transmission image constituted by pixels is compared with a reflection image constituted by a plurality of pixels converted by the conversion unit from the reflected light received by the light receiving unit 81a, and the predetermined area is identified based on the comparison result. Processing to exclude from the determination target (authentication determination exclusion processing) is executed.
- the bill authenticity determination process is performed by irradiating the bill to be conveyed with light from the light emitting unit, receiving the transmitted light and reflected light with the light receiving unit, photoelectrically converting the light, and converting the converted bill.
- image data transmission image data, reflection image data
- the information for each pixel converted by the conversion unit corresponds to lightness (luminance value), and a numerical value from 0 to 255 (for example, 0: black to 255: white) is set for each pixel according to the lightness. This is compared with pixel data relating to genuine bills stored in advance, and authenticity determination processing is executed.
- the portion where the state is changed is transmitted.
- the image data becomes brighter than the reflected image data (the pixel brightness increases).
- the transmitted image data will not be brighter than the reflected image data.
- the determination process when compared with the pixel data related to the genuine note, it is identified as a fake note.
- a predetermined area is determined in advance with respect to a bill to be inserted, and even if the above-described state change occurs, the other part is not immediately identified as a fake note. Then, the comparison process is performed, and the authenticity determination process is performed. That is, pixel data in a predetermined area is acquired, and even if the transmission image data is brighter than the reflection image data in this predetermined area, it is simply assumed that the banknote has undergone a change in state. The authentication process is made possible.
- a is a numerical value assigned to one pixel in the transmission image
- (i, j) are the coordinates of the banknote.
- a predetermined area is specified in advance by the coordinates, and in the transmission image of the predetermined area. Derive the sum of pixels.
- b is a numerical value assigned to one pixel in the reflection image, and similarly, the sum of pixels in the reflection image of the predetermined area is derived.
- the transmission image is bright in the predetermined area, and the state change ( Assuming that water adheres or has holes, the predetermined area is excluded, and an actual authenticity determination process is performed.
- the above-described predetermined region is set to a region other than a region where different pixel information is acquired when light having a different wavelength is emitted from the light emitting unit (such a region is referred to as a feature region).
- a region is referred to as a feature region.
- the above-described banknote feature area may be an area where an image such as a watermark is formed.
- the sum of the lightness in the transmission image (may be an average value) is more than that of the reflection image.
- the banknote may be immediately discharged.
- the reference pixel data relating to the genuine banknote stored in advance by the ROM or the like and the printing area on the surface of the banknote to be conveyed are light emitting units (the first light emitting unit 80a and the second light emitting unit 81b). ) Is irradiated with light of a predetermined wavelength, and the transmitted light data of the light transmitted through the bill and the pixel data based on the reflected light data of the reflected light are compared. As described above, even if the above-described expression is satisfied in the predetermined area at the previous stage of the authenticity determination process, it is determined that the state change occurs in the genuine banknote, and the actual authenticity determination process is executed. In this case, the predetermined area is excluded and comparison processing with reference data (reference data excluding the predetermined area in advance) is executed.
- banknote storage unit 100 that sequentially stacks and stores banknotes identified as authentic by the banknote reading means 8 will be described.
- the main body frame 100 ⁇ / b> A that constitutes the banknote accommodating part 100 is configured in a substantially rectangular parallelepiped shape, and an urging means (biasing spring) 106 is provided inside the front wall 102 a.
- an urging means biasing spring
- One end is attached, and the other end is provided with a placing plate 105 for sequentially stacking banknotes fed through the receiving port 103 described above. For this reason, the mounting plate 105 is in a state of being urged toward the pressing plate 115 described later via the urging means 106.
- a press standby unit 108 is provided so as to wait and hold the falling banknote as it is so as to be continuous with the receiving port 103.
- a pair of regulating members 110 are arranged on both sides of the pressing standby portion 108 on the placement plate side so as to extend in the vertical direction. Between the pair of regulating members 110, an opening is formed so that the pressing plate 115 passes when banknotes are sequentially stacked on the placing plate 105.
- a pressing plate 115 is provided in the main body frame 100A to press the bills that have dropped from the receiving port 103 onto the pressing standby unit 108 toward the placement plate 105.
- the pressing plate 115 is configured to have a size that allows the opening formed between the pair of regulating members 110 to reciprocate. The position where the pressing plate 115 enters the opening and presses the bill against the placement plate 105. It is reciprocated between the (pressing position) and a position (initial position) where the pressing standby part 108 is opened. In this case, the banknote passes through the opening while being bent by the pressing operation of the pressing plate 115 and is mounted on the mounting plate 105.
- the pressing plate 115 is reciprocated as described above via the pressing plate driving mechanism 120 disposed in the main body frame 100A.
- the pressing plate driving mechanism 120 includes a pair of link members 115a and 115b whose both ends are pivotally supported by the pressing plate 115 so that the pressing plate 115 can be reciprocated in the direction of arrow A in FIGS.
- These link members 115a and 115b are connected in an X shape, and the opposite ends of the link members 115a and 115b are pivotally supported by a movable member 122 that is installed so as to be movable in the vertical direction (arrow B direction).
- a rack is formed on the movable member 122, and a pinion constituting the pressing plate driving mechanism 120 is engaged with the rack.
- a housing part side gear train 124 that constitutes the pressing plate drive mechanism 120 is connected to the pinion.
- a drive source (motor 20) and a main body side gear train 21 that sequentially meshes with the motor 20 are disposed in the apparatus main body 2 described above.
- the main body side gear train 21 is connected to the housing part side gear train 124.
- the accommodating portion side gear train 124 includes a gear 124B disposed coaxially with the pinion, and gears 124C and 124D that sequentially mesh with the gear 124B, and the bill accommodating portion 100 with respect to the frame 2A of the apparatus main body 2.
- the gear 124 ⁇ / b> D is configured to mesh with and separate from the final gear 21 ⁇ / b> A of the main body side gear train 21.
- the above-described pressing plate 115 is rotated by the motor 20 provided in the apparatus main body 2, so that the main body side gear train 21 and the pressing plate driving mechanism 120 (the accommodating portion side gear train 124, the movable member 122). And the link members 115a, 115b, etc.) are reciprocated in the direction of arrow A.
- the main body frame 100A is provided with a conveying member 150 that can come into contact with the bills carried from the receiving port 103.
- the conveying member 150 is in contact with the banknotes to be carried in and stably presses the banknotes in a proper position of the press standby unit 108 (when the banknotes are pressed by the pressing plate 115, the banknotes are not moved sideways and are stably pressed. It plays a role of guiding to a possible position).
- the conveying member is configured by a belt-like member (hereinafter referred to as a belt 150) installed so as to face the pressing standby unit 108.
- the belt 150 is installed so as to extend along the carry-in direction with respect to the banknote, and is wound around a pair of pulleys 150A and 150B rotatably supported at both ends in the carry-in direction. . Further, the belt 150 is in contact with an axially extending conveying roller 150C supported rotatably in the region of the receiving port 103, sandwiches the banknotes carried into the receiving port 103, and presses the banknotes as they are. The standby unit 108 is guided. Further, in the present embodiment, the belt 150 is provided in a pair of left and right so as to sandwich the above-described pressing plate 115 so as to be able to contact the surfaces of both sides of the bill. In addition to the winding of the pulleys 150A and 150B at both ends, the belt 150 may be applied with a tension pulley at an intermediate position to prevent looseness.
- the pair of belts 150 are driven by the motor 13 that drives the above-described plurality of conveying rollers installed in the apparatus main body 2.
- the above-described drive belt 13B driven by the motor 13 is wound around a pulley 13D for driving force transmission, and is used for power transmission that is sequentially installed on this pulley 13D.
- a gear train 153 installed at an end portion of a support shaft of a pulley 150A rotatably supported on the receiving port 103 side meshes with the gear train 13E.
- the input gear of the gear train 153 is engaged with the final gear of the gear train 13 ⁇ / b> E, and the pair of belts 150 are rotated by the motor 13.
- the motor 13 By driving, it is rotated integrally with the above-described transport rollers 14B, 15B, 16B, and 17B for transporting banknotes.
- the banknote transport path 3 has a first transport path 3 ⁇ / b> A extending from the banknote insertion slot 5 toward the back side, and a first transport path 3 ⁇ / b> A extending downstream from the first transport path 3 ⁇ / b> A. And a second conveyance path 3B inclined at a predetermined angle with respect to the conveyance path 3A.
- the drawing-out prevention member (shutter member) 170 which prevents a banknote from moving toward the banknote insertion slot 5 side is installed.
- the pull-out preventing member 170 is urged to rotate in the direction of the arrow in FIG. 3 (the direction of closing the second transport path 3B) via the support shaft 170a, and the banknote moves toward the banknote storage unit 100 side.
- the urging force is rotated in the direction of the arrow to close the second transport path 3B. That is, when the trailing edge of the banknote passes through the pullout preventing member 170, the second transport path 3B is closed by the pullout preventing member 170 so that the banknote cannot be pulled out.
- a plurality of such pull-out prevention members may be installed along the conveyance path on the downstream side of the bill reading means 8.
- the installation position from the position where the banknote stops when the authenticity determination process of the banknote is being performed (the escrow position; in this embodiment, the position is about 13 mm downstream of the banknote reading means 8). Should be on the downstream side.
- control means 200 for controlling the driving of the driving members such as the banknote transport mechanism 6 and the banknote reading means 8 will be described with reference to the block diagram of FIG.
- the control means 200 shown in the block diagram of FIG. 6 includes a control board 210 that controls the operation of each driving device described above. On the control board 210, the driving of each driving device is controlled and banknote identification is performed.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- operation programs for various driving devices such as the bill transport mechanism motor 13, the pressing plate driving motor 20, the skew correction mechanism motor 40, the roller lifting motor 70, and the like, and the authenticity determination processing unit 230 are stored.
- Permanent data are stored, such as various programs such as a genuineness determination program and a multifeed determination program for determining folding and multifeeding at the leading edge of a bill.
- the CPU 220 operates according to the program stored in the ROM 222, inputs / outputs signals to / from the various driving devices described above via the I / O port 240, and performs overall operation control of the banknote processing device. . That is, the CPU 220 is connected to the banknote transport mechanism motor 13, the pressing plate driving motor 20, the skew correction mechanism motor 40, and the roller lifting motor 70 via the I / O port 240. The operation of these drive devices is controlled by a control signal from the CPU 220 in accordance with an operation program stored in the ROM 222. Further, detection signals from the insertion detection sensor 7, the movable piece passage detection sensor 12, and the discharge detection sensor 18 are input to the CPU 220 via the I / O port 240, and based on these detection signals. Thus, drive control of the various drive devices described above is performed.
- the CPU 220 detects, through the I / O port 240, a detection signal based on transmitted or reflected light of light emitted from the light receiving unit 81a in the above-described banknote reading unit 8 toward the banknote that is the identification target. Is entered.
- the first light emitting unit 80a and the second light emitting unit 81b in the bill reading means 8 are turned on and off via the light emission control circuit 260 in accordance with a control signal from the CPU 220 according to the operation program stored in the ROM 222 described above. Is controlled.
- the RAM 224 temporarily stores data and programs used when the CPU 220 operates, and has a function of acquiring and temporarily storing received light data of banknotes as identification objects.
- the RAM 224 converts the transmission image data received by the light receiving unit 81a from the transmission image data composed of a plurality of pixels converted by the conversion unit 231 described later and the reflected light received by the light receiving unit 81a by the conversion unit 231. Reflected image data composed of the plurality of pixels is stored.
- the authenticity determination processing unit 230 has a function of determining whether or not a bill to be conveyed is authentic. This authenticity determination processing unit 230 converts, for each pixel, received light data of the identification object stored in the RAM 224 into pixel information including color information (density value) having brightness, and this conversion
- the image data processing unit 232 for acquiring image data based on the pixel information converted by the unit 231; the brightness of the pixel of the transmission image in the predetermined region; and the pixel of the reflection image corresponding to the predetermined region of the transmission image.
- a discrimination unit 233 is provided that compares brightness with each other and excludes a predetermined area from an object of authenticity determination based on the comparison result.
- the image data processing unit 232 determines that the lightness of the transmitted image in the predetermined region is higher than the lightness of the reflected image in the same predetermined region based on the above-described mathematical expression in the determining unit 233.
- Image data in a state where image data by transmitted light and image data by reflected light obtained in the predetermined area are excluded is input.
- the authenticity determination processing unit 230 includes a reference data storage unit 234 that stores reference data related to genuine banknotes (pixel data related to genuine banknotes), and banknote image data (pixel data) acquired by the image data processing unit 232. ) And reference data (reference pixel data) stored in the reference data storage unit 234, and a comparison / determination unit 235 that performs a determination process as to whether or not the bill to be conveyed is authentic. ing.
- the reference data storage unit 234 stores image data related to the genuine banknote used when the above-described authenticity determination process is performed, and image data related to the genuine banknote excluding the predetermined area. That is, in normal authentication processing, data including image data of a predetermined area is used as reference data. However, when the predetermined area is excluded by the determination unit 233, image data excluding the predetermined area is used as reference data. Used as data.
- the reference data storage unit 234 stores, for example, various reference data used for authenticity determination, such as a reference value of a print length for a genuine banknote, for each denomination.
- reference data is stored in the dedicated reference data storage unit 234, it may be stored in the ROM 222 described above.
- the authenticity determination processing unit 230 In the actual authenticity determination process in the authenticity determination processing unit 230 described above, light having a predetermined wavelength is irradiated from the light emitting unit (the first light emitting unit 80a and the second light emitting unit 81b) to the print area on the surface of the bill to be conveyed.
- the transmitted light data of the light transmitted through the banknote and the reflected light data of the reflected light are converted into a plurality of pixel data including color information having lightness and having a predetermined size as one unit in the conversion unit 231, and this is used as a reference This is done by comparing with reference pixel data relating to genuine banknotes stored in advance in the data storage unit 234. Further, as described above, when it is determined in the predetermined area of the banknote that the determination unit 233 determines that the state has changed, the image data of the portion excluding the predetermined area is acquired and the authentication determination process is performed.
- the transport roller pair (14A, 14B) installed in the vicinity of the bill insertion slot is in a separated state in the initial state (see ST16 and ST56 described later).
- the pressing plate 115 has a pair of link members 115a and 115b for driving the pressing plate 115 positioned in the pressing standby unit 108, and a bill is transferred from the receiving port 103 to the pressing standby unit 108 by the pair of link members 115a and 115b. It is set to a standby position where it cannot be loaded. That is, in this state, since the pressing plate 115 enters the opening formed between the pair of regulating members 110, the banknotes stored in the banknote storage unit cannot be extracted through the openings. It has become.
- the pair of movable pieces 10A constituting the skew correction mechanism 10 located on the downstream side of the transport roller pair (14A, 14B) has a minimum width (for example, a pair of movable pieces so that all bills cannot be pulled out in the initial state).
- the distance of 10A is 52 mm; see ST15 and ST57 described later).
- the operator can easily insert even a banknote with a hook.
- the motor 20 for driving the pressing plate 115 described above is reversely driven by a predetermined amount (ST02), and the pressing plate 115 is moved to the initial position. That is, until the insertion detection sensor 7 detects the insertion of the banknote, the pressing plate 115 is in a state of being moved to the opening formed between the pair of regulating members 110, and the opening is interposed through the opening.
- the bills are set so that they cannot pass through.
- the press standby section 108 When the pressing plate 115 is moved from the standby position to the initial position, the press standby section 108 is in an open state (see FIG. 4), and the banknote can be carried into the banknote storage section 100.
- the pressing plate 115 by rotating the motor 20 in a reverse direction by a predetermined amount, the pressing plate 115 has the main body side gear train 21 and the pressing plate driving mechanism 120 (the rack formed on the housing portion side gear train 124, the movable member 122, and the link member). 115a, 115b, etc.) from the standby position to the initial position.
- the above-described roller raising / lowering motor 70 is driven to move the upper conveyance roller 14A so as to contact the lower conveyance roller 14B. Thereby, the inserted banknote is clamped by the transport roller pair (14A, 14B) (ST03).
- the banknote transport path is opened (ST04).
- the release process is performed by driving the pair of movable pieces 10A in a direction away from each other by driving the skew correction mechanism motor 40 in the reverse direction (see FIG. 10).
- ST100 the movable piece detection sensor that detects the position of the pair of movable pieces 10A detects that the pair of movable pieces 10A has moved to a predetermined position (maximum width position) (ST101)
- the motor 40 is driven in reverse rotation. Is stopped (ST102).
- the bill can enter the pair of movable pieces 10A.
- the banknote transport path 3 is in a closed state by a transport path closing process (ST15, ST57) described later.
- the banknote transport path 3 is closed before the banknote is inserted.
- the element such as the line sensor from being damaged by inserting a plate-like member from the bill insertion slot for illegal purposes.
- the bill conveyance motor 13 is driven to rotate forward (ST05).
- the bill is transported into the apparatus by a pair of transport rollers (14A, 14B), and when the movable piece passage detection sensor 12 disposed downstream of the skew correction mechanism 10 detects the leading edge of the bill, the bill is transported.
- the motor 13 is stopped (ST06, ST07).
- the banknote is located between the pair of movable pieces 10 ⁇ / b> A constituting the skew correction mechanism 10.
- skew correction operation processing is performed (ST09).
- This skew correction operation process is performed by driving the pair of movable pieces 10A in a direction approaching each other by driving the above-described skew correction motor 40 in a normal direction. That is, in the skew correction operation process, as shown in the flowchart of FIG. 11, the pair of movable pieces 10A are moved toward each other by driving the motor 40 in the normal direction (ST110). This movement of the movable piece is executed until it reaches the minimum width (for example, width 62 mm) of the banknote registered in the reference data storage unit in the control means, whereby the banknote is moved by the movable piece 10A applied to both sides. The skew is corrected and positioned so as to be an accurate center position.
- the conveyance path opening process is subsequently executed (ST10). This is achieved by moving the pair of movable pieces 10A in the direction of separating by driving the skew correction mechanism motor 40 in the reverse direction (see ST100 to ST102 in FIG. 10).
- the roller raising / lowering motor 70 described above is driven to move the upper conveyance roller 14A so as to contact the lower conveyance roller 14B, and the bills are held between the conveyance roller pair (14A, 14B) (ST11).
- the bill conveyance motor 13 is driven to rotate forward to convey the bill toward the inside of the apparatus, and when the bill passes the bill reading means 8, the bill reading process is started (ST12, ST13).
- the closing process of the banknote conveyance path 3 will be performed (ST15).
- the motor 40 described above is driven to rotate forward, thereby a pair of movable pieces. 10A is moved in a direction approaching each other (ST130).
- the movable piece detection sensor detects that the movable piece 10A has moved to a predetermined position (minimum width position, for example, 52 mm) (ST131)
- the forward rotation drive of the motor 40 is stopped (ST132).
- the pair of movable pieces 10A are moved to the minimum width position (width 52 mm) narrower than the width of any bill that can be inserted, thereby effectively preventing withdrawal of the bill.
- the distance between the movable pieces 10A becomes narrower than the width of the inserted banknote, and the operator turns the banknote toward the insertion slot for improper purposes. It is possible to effectively prevent an action such as pulling out.
- the roller lifting / lowering motor 70 described above is driven to separate the transport roller pair (14A, 14B) in a state in which a bill can be clamped. Is performed (ST16).
- ST16 By carrying out this conveyance roller pair separation process, even if the operator mistakenly inserts (doublely inserts) banknotes, the banknotes are not subjected to the feeding operation by the pair of conveyance rollers (14A, 14B).
- the double throwing-in operation of the bills can be reliably prevented.
- the banknote transport motor 13 is driven by a predetermined amount, and the banknote is moved to a predetermined position (escrow position; banknote reading means 8).
- the authenticity determination processing unit 230 of the control means 200 refers to the reference data stored in the reference data storage unit 234 and compares them with each other.
- the determination unit 235 performs bill authenticity determination processing (ST17 to ST20).
- the determination unit 233 determines whether there is a state change in the predetermined area (ST150). This determination is performed by comparing the total brightness of the transmitted image in the predetermined area with the total brightness of the reflected image in the same predetermined area based on the above-described mathematical formula. If it is determined that there is no state change (ST150; No), the image data processing unit 232 acquires image data including the predetermined area, and the comparison determination unit 235 stores the image data in the reference data storage unit 234.
- Comparison processing is performed with the reference data (ST152).
- the determination unit 233 determines that there is a state change in the predetermined area (ST150; Yes)
- the image data processing unit 232 acquires image data excluding the predetermined area (ST151), and the comparison determination unit In 235, a comparison process is performed with the reference data (reference data excluding the predetermined area) stored in the reference data storage unit 234 (ST152).
- the bill conveyance motor 13 is driven to rotate forward (ST22).
- the banknote transport motor 13 is driven to rotate forward until the trailing edge of the banknote is detected by the discharge detection sensor 18 (ST23), and after the trailing edge of the banknote is detected by the discharge detection sensor 18.
- the bill conveyance motor 13 is driven forward by a predetermined amount (ST24, ST25).
- the bill In the normal rotation driving process of the bill transport motor 13 in ST24 and ST25, the bill is carried into the receiving port 103 of the bill storage unit 100 from the discharge port 3a on the downstream side of the bill transport path 3 of the apparatus body 2.
- the pair of belts 150 is in contact with both side surfaces of the bills to be carried in and stably corresponds to the driving amount guided to the press standby unit 108. That is, after the trailing edge of the banknote is detected by the discharge detection sensor 18, the pair of belts 150 come into contact with the banknotes to be carried in by further rotating the banknote transport motor 13 by a predetermined amount. While being driven in the bill feeding direction, the bill is guided to the press standby unit 108 in a stable state.
- the drive roller pair (14A, 14B) that is driven to hold the banknotes is separated (ST54 to ST56). Thereafter, the conveyance path closing process is performed (see ST57, ST130 to ST132 in FIG. 12), and the driving plate 20 is driven forward by a predetermined amount (ST58). 115 is driven to the standby position, and a series of processing ends.
- the banknote handling apparatus having the above-described configuration, when a banknote having a state change in a predetermined area is inserted even though it is a genuine banknote, first, in the determination unit, the state change (mainly moisture) In the case where there is a change in the state of the predetermined area, the predetermined area is excluded from the objects of authenticity determination. Therefore, even if it is a genuine banknote, the possibility that it is determined to be a fake note due to its state change is reduced, and it is possible to improve the accuracy of authenticity determination.
- the predetermined area of the banknote is a characteristic area (when determining the authenticity of the banknote, in which different pixel information is acquired when light of different wavelengths is irradiated from the light emitting unit constituting the banknote reading means. Even if the above-mentioned state change occurs in a given area, it is less likely to have an effect on authenticity determination, and the accuracy of authenticity determination is prevented from being lowered. Is done.
- the light receiving unit is configured by a line sensor that reads the entire range in the width direction of the banknote, it is possible to accurately specify the predetermined area and the characteristic area described above, and authenticity determination accuracy. Can be further improved.
- the predetermined area as described above may be an area having a predetermined size at a predetermined position in the print area other than the watermark portion.
- the predetermined position may be a position L1 from the left end of the printing area and a position W1 from the upper end of the area. That is, the predetermined size can be L1 ⁇ W1.
- This area can be handled as a money amount display area where the type of bill can be easily determined, and it does not have to have a characteristic that the reflectance or transmittance varies depending on the wavelength of light. On the contrary, there is no inconvenience even if this area is handled as a data area such as a denomination that can be seen easily.
- reference data for authenticity determination may be extracted based on the denomination data.
- the position may be L3 from the right end of the print area and W3 from the lower end of the print area. Or these two places (plural places) are good also as a predetermined field.
- FIG. 14 it can be seen that these regions are wet with water and the intensity of the reflected light is reduced. However, in this region, it is sufficient to identify the denomination of 100, so that it can be excluded from the subsequent authenticity determination processing.
- FIG. 15 and 16 schematically show a state in which water or the like is attached to the banknote.
- FIG. 15 schematically shows an image of the banknote M1 by transmitted light
- FIG. 16 schematically shows an image of the banknote M2 by reflected light.
- the figure which looked at the banknote from the top is described. That is, even when viewed with transmitted light, the transmitted light is projected onto the reflecting plate, and the schematic view is seen. In this way, the transmitted light image can be directly superimposed on the reflected light image, which makes comparison easier.
- the watermark parts 202 and 212 are arranged almost at the center (characteristic area described above), and portraits 204 and 214 are arranged on the right side thereof, so-called identification by reflected light. It is possible to judge authenticity intuitively.
- the portions 206 and 208 to which water is attached are easy to transmit light, and are slightly white in FIG.
- the reflected light similarly, in the portions 216 and 218 to which water adheres, irregular reflection on the surface is suppressed, and the portions appear dark and dull. For this reason, in such a part, the transmitted light becomes brighter, and there is a possibility that the identification based on the brightness of the image is not sufficiently performed.
- the watermark portions 202 and 212 are not non-characteristic regions, they are not excluded in the authenticity determination. Further, when it is determined that the state has changed due to such adhesion of water, the discharge process may be performed immediately before entering the next detailed examination stage. If the portraits 204 and 214 are non-characteristic regions, it is preferable to exclude this portion in the authenticity determination.
- Ea becomes larger as the color of the pixel is darker (closer to 255), the value of the pixel is set to V (0 to 255).
- Numbers indicating pixel positions (x, y) are written horizontally and vertically.
- a portion 226 where water adheres and reflection and transmission are reversed is surrounded by a thick line.
- the numerical value is negative at the portion 226 where the water adheres, and the transmitted light is stronger.
- Such an area may be a predetermined area.
- a predetermined ratio for example, when it is equal to or greater than 10/32
- the predetermined area may be an area determined in advance such as a place where water is particularly wet from experience, but the number of pixels constituting the predetermined area (continuous area) is specified in advance, such as a square.
- a specific shape may be specified in advance, or the area that satisfies the above-described criteria (the number of pixels is half or more, satisfying Expression 1) may be determined while being shifted little by little.
- the determination unit determines the brightness of the pixel of the transmission image in the predetermined area of the paper sheet and the brightness of the pixel of the reflection image corresponding to the predetermined area of the transmission image. , It is possible to determine whether or not there is a change in the state of the paper sheets (mainly containing water or having defects such as holes). If there is a change in the state of a predetermined area of the paper sheet, the predetermined area is excluded from the object of authenticity determination, so that even a genuine note is less likely to be determined to be a fake ticket, and authenticity determination accuracy Can be improved.
- the predetermined region is set to a region other than a feature region in which different pixel information is acquired when light having a different wavelength is emitted from the light emitting unit. To do.
- an area where different pixel information is acquired when light having a different wavelength is emitted from the light emitting unit is a characteristic when performing authenticity determination of the paper sheet. Therefore, the other areas are excluded from the authenticity determination target as the above-described predetermined areas. That is, even if the above-described state change occurs in a region that is not a feature region (non-feature region), it is unlikely to particularly affect the authenticity determination.
- the predetermined area As described above, it is possible to prevent the authentication accuracy from being lowered.
- the feature region of the paper sheet corresponds to, for example, a watermark image formed on a banknote.
- the light receiving unit may be configured by a line sensor that reads the entire range of the paper sheet in the width direction.
- the paper sheet processing apparatus configured as described above, since the image information of the entire width direction of the paper sheet can be acquired by the line sensor, it becomes possible to accurately specify the predetermined area and the characteristic area described above, The accuracy of authenticity determination can be further improved.
- a light emitting unit that irradiates light to the paper sheet, transmitted light that is irradiated from the light emitting unit and transmitted through the paper sheet, and the paper sheet
- a light receiving unit that receives the reflected reflected light
- a processor that can control the light emitting unit and the light receiving unit
- a storage unit that is connected to the processor.
- the processor digitizes the transmitted light and the reflected light received by the light receiving unit based on the brightness for each pixel including color information having brightness and having a predetermined size as one unit, respectively. Can be stored in the storage unit in association with the position of the pixel on the banknote.
- the reflected light and the transmitted light at each pixel position are compared, and if there is a predetermined relationship, a marker for not using the pixel data at that position for authentication processing is associated with that position and stored in the storage unit. Can be made. And based on each pixel data memorize
- This marker may be, for example, a so-called flag, or may be data that is additionally added as an attribute. It is preferable that each pixel position, its brightness, etc. can be extracted from the stored data using this marker as a mark.
- the processor may be able to authenticate the paper sheet using only the pixel data at a predetermined position of the banknote. What is in this predetermined position may be data relating to a portion that can provide different information depending on the wavelength of light to be irradiated, such as a watermark portion.
- the portion at the predetermined position is not the portion at the position where the marker is attached as described above.
- the processor divides the banknote into a plurality of small areas, and when the number of pixels corresponding to the position where the marker is attached in each small area reaches a predetermined ratio, the pixel data of the small area Can not be used for authenticity processing.
- This small area may be an area having a predetermined number of pixels. For example, it may be a denomination display area. However, this small region does not exist in a so-called feature region.
- an authenticity determination method including a step of determining whether or not there is a state change in an area and a step of excluding the predetermined area from an area for authenticity determination when it is determined that there is a state change. .
- the determination that there is a state change may be made based on whether or not the difference in brightness between the reflected light and the transmitted light is equal to or greater than a predetermined threshold value as compared with reference data stored in advance.
- the predetermined area is a non-characteristic area. Moreover, the process of discriminating a denomination based on the data by the reflected light or transmitted light of the said predetermined area
- region may be included.
- the predetermined area that is excluded from the authenticity determination when a state change has occurred may be provided at a plurality of locations on the banknote, and the area thereof may be appropriately changed.
- the present invention is characterized in that, in the authenticity determination processing of a banknote, when there is a state change in a predetermined area, the authentication determination process is performed by excluding the predetermined area, and other configurations are described above.
- the present invention is not limited to the embodiment and can be variously modified. For example, the configuration and arrangement position of the bill reading means 8 can be appropriately modified.
- the present invention it is possible to obtain a paper sheet processing apparatus capable of improving the accuracy of authenticity determination even when the state of the paper sheet changes due to adhesion of moisture or the like.
- the present invention is not limited to the banknote processing apparatus, and can be incorporated into an apparatus that provides various products and services by inserting paper sheets such as coupons and service tickets.
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Abstract
Description
本発明の更なる特徴、性質、及び種々の有利な点は、添付する図面及び以下の好ましい実施例の記述からより明らかになるであろう。
2 装置本体
3 紙幣搬送路
5 紙幣挿入口
6 紙幣搬送機構
8 紙幣読取手段
10 スキュー補正機構
80a 第1発光部
81 受発光ユニット
81a 受光部
81b 第2発光部
200 制御手段
Claims (9)
- 紙葉類に対し光を照射する発光部と、
前記発光部から照射され、紙葉類を透過した透過光、及び紙葉類から反射した反射光を受光する受光部と、
前記受光部で受光した透過光、及び反射光を、明度を有する色情報を含み、所定の大きさを1単位とする画素毎にそれぞれ変換する変換部と、
前記受光部で受光した透過光から前記変換部で変換された複数の画素によって構成される透過画像、及び前記受光部で受光した反射光から前記変換部で変換された複数の画素によって構成される反射画像を記憶する記憶部と、
前記記憶部により記憶された各画像に基づいて紙葉類の真贋を判定する真贋判定処理部と、
前記透過画像の所定領域における画素の明度と、透過画像の所定領域に対応する反射画像の画素の明度との比較結果に基づいて、前記所定領域を真贋判定の対象から除外する判別部と、
を有することを特徴とする紙葉類処理装置。 - 前記所定領域は、前記発光部から異なる波長の光を照射した際に異なる画素情報が取得される特徴領域以外に設定されることを特徴とする請求項1に記載の紙葉類処理装置。
- 前記受光部は、紙葉類の幅方向全体の範囲を読取るラインセンサによって構成されることを特徴とする請求項1又は2に記載の紙葉類処理装置。
- 紙葉類に対し光を照射する発光部と、
前記発光部から照射され、紙葉類を透過した透過光、及び紙葉類から反射した反射光を受光する受光部と、
前記発光部及び前記受光部を制御可能なプロセッサと、
前記プロセッサに接続される記憶部と、を備え、
前記プロセッサは、
前記受光部で受光した透過光、及び反射光を、明度を有する色情報を含み、所定の大きさを1単位とする画素毎にそれぞれ明度を基準に数値化し、それぞれの画素の前記紙幣上での位置と関連付けて、前記記憶部に記憶させ、
各画素位置における反射光と透過光を比較して、所定の関係にあるときは、その位置の画素データを真贋処理に使わないためのマーカをその位置と関連付けて、前記記憶部に記憶させ、
前記記憶部により記憶された各画素データに基づき、前記マーカが付けられた位置の画素データを除外して、紙葉類の真贋をすることを特徴とする紙葉類処理装置。 - 前記プロセッサは、前記画素データのうち、前記紙幣の所定の位置にあるもののみを用いて、紙葉類の真贋をすることを特徴とする請求項4に記載の紙葉類処理装置。
- 前記プロセッサは、前記紙幣を複数の小領域に分け、各小領域における前記マーカが付けられた位置に対応する画素の数が、所定の割合に達した場合に、該小領域の画素データを全て真贋処理に使用しないことを特徴とする請求項4に記載の紙葉類処理装置。
- 紙葉類に対し光を照射して、その反射光及び透過光によるイメージを解析して真贋を判定する方法において、
前記紙葉類に光を照射する工程と、
その反射光を前記紙葉類の位置情報とともに取得する工程と、
その透過光を前記紙葉類の位置情報とともに取得する工程と、
予め決められた位置にある所定領域の前記反射光及び透過光のデータに基づいて、該所定領域の状態変化の有無を判定する工程と、
この判定により状態変化有りとされた場合、当該所定領域を真贋判定のための領域から除外する工程と、を備える真贋判定方法。 - 前記所定領域は、非特徴領域であることを特徴とする請求項7に記載の真贋判定方法。
- 前記所定領域の反射光又は透過光によるデータに基づいて、金種を判別する工程を含むことを特徴とする請求項7又は8に記載の真贋判定方法。
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