CN105814612A - Paper sheet processing device - Google Patents

Paper sheet processing device Download PDF

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Publication number
CN105814612A
CN105814612A CN201580002996.2A CN201580002996A CN105814612A CN 105814612 A CN105814612 A CN 105814612A CN 201580002996 A CN201580002996 A CN 201580002996A CN 105814612 A CN105814612 A CN 105814612A
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CN
China
Prior art keywords
light
transport path
optical sensor
sensor portion
bank note
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CN201580002996.2A
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Chinese (zh)
Inventor
鹤卷悟
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Nippon Conlux Co Ltd
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Nippon Conlux Co Ltd
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Publication of CN105814612A publication Critical patent/CN105814612A/en
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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00Testing 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
    • G07D7/06Testing 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
    • G07D7/12Visible light, infrared or ultraviolet radiation
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/02Simple or compound lenses with non-spherical faces
    • G02B3/08Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/10Mechanical details
    • G07D11/16Handling of valuable papers
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00Testing 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
    • G07D7/20Testing patterns thereon
    • G07D7/202Testing patterns thereon using pattern matching

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)

Abstract

To reduce the thickness and to expand the detection range of an optical sensor unit used in a paper sheet processing device. This paper sheet processing device (1) is equipped with: optical sensor units, each of said optical sensors having a light-emitting part (14) for emitting light to a paper sheet which is passing inside a conveyance path, a condensing optical system (11) for condensing the emitted light transmitting through the paper sheet passing inside the conveyance path, and a light-receiving part (15) for receiving the light which has been condensed by the condensing optical system (11); and a control means (30) for performing identification of a paper sheet to be identified on the basis of output signals from the light-receiving parts (15). This paper sheet processing device is characterized in that in terms of the intensity distribution of the emitted light in the width direction of the conveyance path, the intensity of each condensing unit (11) at the periphery of the optical axis center position is greater than the intensity of the condensing unit (11) at the optical axis center position.

Description

Bill handling device
Technical field
The present invention relates to and carry out the bill handling device that the true and false of the paper such as bank note, coupons judges.
Background technology
Can use in the various instruments of bank note at automatic vending machine etc., carry out the true and false to bank note, denomination judges, and provide and bank note value corresponding commodity, service.In such instrument, the kind of the true and false and bank note in order to judge bank note, it is common to use have bank note treatment device.In bank note treatment device, while the bank note after inserting is carried, various sensor is used to carry out the judgement of bank note.For the sensor used, make to use up beyond the type that the optical characteristics as the bank note judging object is detected, using the type etc. having the magnetic to bank note to detect.
In patent documentation 1, publicity has document to accept the sensor device of machine, described document accepts the sensor device use of machine has light transmission to measure, described light transmission measures the 2nd lateral document from document path and irradiates light, and the light through document is carried out light by the photodetector being used on the 1st side of document path setting.In this sensor device, by using array of fresnel lenses, it is possible to make light converge to photodetector from the scope relatively widely of document path, such that it is able to make the substantially entirety of the width of document path become detection effective range.
Patent documentation 1: No. 5178722 publications of Japanese Patent No.
Summary of the invention
The identification sensor of bank note as Patent Document 1 is such, and by using array of fresnel lenses, the thickness of lens is thinning such that it is able to make identification sensor slimming.But, in order to realize further identifying the miniaturization of sensor, and when shortening the focal length of Fresnel lens, then cause following situation, i.e. the intensity distributions of light is, optical axis center position has high intensity, but reduce along with leaving optical axis center.In figure 16, the sectional view of the short Fresnel lens FL of focal length and an example of the intensity distributions of injection light Lo (just through after Fresnel lens FL) thereof are indicated.
As shown in figure 16, when employing the short Fresnel lens of focal length, cause that the optical characteristics detected becomes uneven.In order to obtain uniform characteristic from document, it is preferable that become the ideal value of the rectangle shown in Figure 16.
The technical problem to be solved is, in the bill handling device using Fresnel lens that the optical characteristics of the paper as object is detected, it is suppressed that the shortcoming of above-mentioned Fresnel lens, in order to detect the optical characteristics of paper equably.
Therefore, sheet paper identification device involved in the present invention is with following project for feature.
Namely, it is characterised in that possessing supply unit, optical sensor portion and control unit, described delivery section is carried as the paper judging object in transport path,
Described optical sensor portion has irradiates the illuminating part of light to the paper passed through on described transport path, the light that irradiates passing through the paper passed through on described transport path is carried out the Fresnel lens of optically focused and to the light accepting part being carried out light by the optically focused light of described Fresnel lens optically focused
Described control unit is based on the output signal of described light accepting part, and the true and false carrying out described paper judges,
And the intensity distributions on the width of described transport path of described irradiation light is that, compared with the intensity of the optical axis center position of described light collecting part, the intensity around the optical axis center position of described light collecting part is bigger.
And sheet paper identification device involved in the present invention, it is characterized in that, when having carried out adding to the optically focused characteristic of the described Fresnel lens in the described intensity distributions of described irradiation light and the width of described transport path, relative to the width of described transport path, just the intensity through the described optically focused light after described Fresnel lens is substantially certain.
And sheet paper identification device involved in the present invention, it is characterised in that described illuminating part has: the light source portion of injection light source light;And flange, it is configured in the light path of the light source light emitted by described light source portion, to described transport path lateral process, and makes light transmission,
By making described light source light through described flange, generate the described irradiation light with described intensity distributions.
And sheet paper identification device involved in the present invention, it is characterised in that have multiple described optical sensor portion, and relative to the width of described transport path, each described optical sensor portion is configured on different positions.
Bill handling device according to the present invention, in the bill handling device using Fresnel lens that the optical characteristics as the paper judging object is detected, the uneven optical characteristics of Fresnel lens can be suppressed, thus detection is as the optical characteristics of the paper judging object equably.
Accompanying drawing explanation
Fig. 1 indicates that the top view (the 1st embodiment) of the situation of the bank note conveying in bill handling device.
Fig. 2 indicates that the side sectional view (the 1st embodiment) of the composition of bill handling device.
Fig. 3 indicates that the block diagram (the 1st embodiment) controlling to constitute of bill handling device.
Fig. 4 is the sectional view (the 1st embodiment) in the optical sensor portion on the width of transport path.
Fig. 5 is the sectional view (the 1st embodiment) in the optical sensor portion on the length direction of transport path.
Fig. 6 is the amplification view (the 1st embodiment) in the optical sensor portion on the width of transport path.
Fig. 7 indicates that the figure of the intensity distributions irradiating the intensity distributions of light, the optical characteristics of collective optics, optically focused light.
Fig. 8 is the intensity distributions (the 1st embodiment) irradiating light and optically focused light in multiple optical sensor portion.
Fig. 9 indicates that the figure of the scan mode in optical sensor portion.
Figure 10 indicates that the figure of the test paper using that optical characteristics determination test uses.
Figure 11 indicates that the figure of mode that optical characteristics tests and this result of the test.
Figure 12 indicates that the flow chart that the judgement in bill handling device processes.
Figure 13 is the sectional view (the 2nd embodiment) in the optical sensor portion on the width of transport path.
Figure 14 is the amplification view (the 2nd embodiment) in the optical sensor portion on the width of transport path.
Figure 15 indicates that the figure (the 2nd embodiment) irradiating light and intensity distributions on the width of transport path.
Figure 16 indicates that the sectional view of Fresnel lens and the figure of the intensity distributions of injection light.
Detailed description of the invention
(the 1st embodiment)
For the bill handling device 1 of the 1st embodiment, its detailed content is illustrated.Fig. 1 indicates that the top view of situation of the bank note conveying in the bill handling device 1 of the 1st embodiment, indicates for bill handling device 1, as the bank note S judging object of the true and false situation being transferred.It is inserted into bill handling device 1 to the direction represented with arrow as the bank note S right side from figure judging object.Fig. 1 illustrates its top view for the bottom composition of bill handling device 1.Additionally, in bill handling device involved in the present invention, beyond such bank note, can using various papers such as coupons, security, the such various marketable securities of reward voucher as object as the paper judging object.
In bill handling device 1, it is provided with the driving roller 42A~42D as the supply unit carrying bank note S.In Fig. 1, being inserted into the bank note S of bill handling device 1 at this driving roller 42A~between 42D and opposed roll 43A opposed with it respectively~43D, the top and the bottom of this bank note S are held, and carry to left-hand in the drawings.In bill handling device 1, on the transport path of the side of the transport path forming bank note S, on the direction (width of transport path) orthogonal with the conveying direction of bank note S, it is provided with 5 optical sensor portion 10A~10E of adjacent configuration to identify the pattern of bank note S.The optical characteristics of bank note S can be detected by each optical sensor portion 10A~10E with the width of each optical sensor portion 10A~10E shown in Fig. 5.Thus, by using 5 optical sensor portion 10A~10E, it is possible to realize detection width W2 substantially in the same manner with the width W1 of bank note S, thus the optical characteristics that bank note S is overall is detected.
The judgement of bank note S uses these 5 optical sensor portion 10A~10E to perform.Fig. 2 indicates that the side sectional view of the composition of bill handling device 1.Just, from laterally the bill handling device 1 of Fig. 1 being observed, and sectional view when cutting off near optical sensor portion 10A is formed.Bill handling device 1 comprises supply unit, optical sensor portion 10 (owing to optical sensor portion 10A~10E is same composition, therefore following when illustrating for any 1 optical sensor portion, the symbol A~E in 10A~10E is omitted expression) and constitute.Additionally, have supply unit and control unit, paper, while optical sensor portion 10 is controlled, is judged by described control unit based on the signal etc. from optical sensor portion 10.
Figure is shown with 2 and drives roller 42A, 42B in fig. 2.Relative with this driving roller 42A, 42B, it is configured with opposed roll 43A, 43B.Roller 42A, 42B is driven to utilize the driver element of motor etc. to rotate to the direction of the arrow of diagram.It addition, opposed roll 43A, 43B be configured in on the position driving roller 42A, 42B to abut, and along with drive roller rotate or be inserted in the moving of bank note S of bill handling device 1 and rotate.
In bill handling device 1, it is formed with the bank note S transport path passed through by the 1st opposed wall 11 and the 2nd wall 12.On the side (the 1st wall 11 side) of this transport path, it is configured with the light-emitting component 14a (" light source portion " in the present invention) being made up of the LED of configuration on substrate.Its light-emitting area of light-emitting component 14a configures towards the 1st wall 11.Be positioned at the 1st wall 11 of light-emitting component 14a side by transparent resin formation, the light that light-emitting component 14a irradiates by the 1st wall 11 to transport path internal radiation.The light-emitting component 14a of present embodiment employs the light-emitting component of the light irradiating a kind of wavelength, but light-emitting component 14a can also be the light-emitting component of the light irradiating different multiple wavelength.When irradiating the light of multiple wavelength, irradiate the light of multiple wavelength by timesharing, it is possible to obtain the characteristic of bank note S at the wavelength place of each light.
On the opposite side (the 2nd wall 12 side) of this transport path, it is configured with on substrate the photo detector 15a (" light accepting part " in the present invention) of configuration.It is positioned at the 2nd wall 12 of photo detector 15a side by transparent resin formation.On this photo detector 15a, use and have the photodetector (PD) that can detect the light and shade intensity through light after through bank note S.Light transmission the 1st wall 11, the bank note S carried transport path and the 2nd wall 12 is irradiated from what light-emitting component 14a irradiated, by photo detector 15a light, thus as being output to control portion 30 (" control unit " in the present invention) by optical output signal.So, the optical sensor portion 10 of bill handling device 1 have employed infiltration type type, i.e. irradiates light to the face of the side of bank note S, and carries out light to from the light that passes through in the face of opposite side.
Indicate that block diagram, described block diagram represent that the control of bill handling device 1 is constituted in figure 3.Bill handling device 1 is configured to, possess comprise light-emitting component 14 and photo detector 15 optical sensor portion 10, to the amplifier 24 and the control portion 30 that are carried out amplification by optical output signal from optical sensor portion 10.In addition, although only indicating 1 optical sensor portion 10 in this control is constituted, but when having 5 optical sensor portion 10A~10E as Fig. 1, control portion 30 while the luminescence of each optical sensor portion 10A~10E is controlled, after input light by optical output signal.
Control portion 30 comprises CPU31 and constitutes.CPU31 is the central arithmetic unit that integration has the memory element such as ROM, RAM, it is possible to perform various computing based on the program stored in the memory unit and various data.Although additionally, illustrate, but the driving roller 42A~42D of supply unit is also controlled by this control portion 30, thus carrying out the control relevant to the conveying as the bank note S identifying object.
In this CPU31, it is additionally provided with the luminous D/A converter 32 driving signal to export irradiating light to control light-emitting component 14 and receives passing through light and converting the A/D converter 33 of sample message to of photo detector 23.CPU31 carries out the judgement (true and false judges, classification judgement etc.) as the bank note S identifying object.
Sectional view at the middle optical sensor portion 10A~10E indicated on the width of transport path of Fig. 4 (A).Fig. 4 (A) is the sectional view of the YZ plane between the A-A shown in Fig. 1.It addition, Fig. 5 (B) is the sectional view of the ZX plane between the B-B of Fig. 4 (A), Fig. 5 (C) is the sectional view of the ZX plane between the C-C of Fig. 4 (A).
At this, illustrate for 1 optical sensor portion 10B.Optical sensor portion 10B is configured to, and has light-emitting component 14b, the 1st wall the 11, the 2nd wall 12, collective optics 13b and photo detector 15b.Between the 1st wall the 11 and the 2nd wall 12, it is formed with the transport path for carrying bank note S.1st wall the 11 and the 2nd wall 12 is formed by optically transparent material, and described optical clear is at the optical sensor portion 10B light used.Thus, form following light path from the light source light of light-emitting component 14b injection, i.e. through the 1st wall the 11, the 2nd wall 12 and collective optics 13, and to light path incident for photo detector 15b.
It addition, on the 1st wall 11, form the flange 11a~11f of oriented transport path lateral process.From Fig. 5 (A), the flange 11c of Fig. 5 (C) sectional view it can be seen that the surface of flange 11a~11f has spherical shape.The position of the bank note S that flange 11a~11f passes through in transport path by reducing the height of transport path to be limited in.Its optical characteristics can be detected for position by the bank note S of the state after limiting, it is possible to realize the raising of the precision of the optical characteristics detected by flange 11a~11f, optical sensor portion 10A~10E.
It addition, flange 11a~11f has the function that the light source light made from light-emitting component 14b injection has the intensity distributions of regulation.For transport path, the flange 11a~11c of projection has light-focusing function.Thus, from the light source light of light-emitting component 14b injection by flange 11b, 11c optically focused, so that the irradiation light shape irradiated on transport path becomes the intensity distributions of regulation.The illuminating part of the present invention refers to and forms the composition irradiating light, and the illuminating part of the 1st embodiment is configured to, and has light-emitting component 14a~14b, flange 11a~11f.Light through transport path and the 2nd wall 12 is condensed on photo detector 15b by collective optics 13b.In the present embodiment, Fresnel lens is employed as collective optics 13a~13e.When achieving the expansion of detection range of optical sensor portion 10A~10E, for instance can by using the collecting lens that radius of curvature is little to realize short focus.But, owing to the thickness of collecting lens becomes big, therefore consider to adopt Fresnel lens as in this embodiment.By using Fresnel lens as collective optics 13a~13e, while guaranteeing wider detection range, it is possible to make the optical path length needed for optical sensor portion 10A~10E shorten.
But, as shown in Figure 16, it is known to following situation, i.e. on peripheral part of Fresnel lens, cause that condenser performance deteriorates because of the differential of lens surface.Thus, using has the collective optics 13a~13e of Fresnel lens to have high intensity near optical axis center position, but the intensity step-down around optical axis center position.That is, around the optical axis center position of collective optics 13a~13e, because of the differential of lens surface and that cause loss is bigger.
Indicate the amplification view of optical sensor portion 10B on the width of transport path in figure 6.This figure indicates that the sectional view as the bank note S judging object situation time passed through.From the light source light L1 of light-emitting component 14b injection through the 1st wall 11, and form the irradiation light L2 that bank note S is irradiated.Now, by flange 11b, 11c of being formed on the 1st wall 11, relative to the width of transport path, give the intensity distributions having regulation.Specifically, light-focusing function by flange 11b, flange 11c, the adjoining position of collective optics 13a and collective optics 13b carries out optically focused (by flange 11b), or on the adjoining position of collective optics 13b and collective optics 13c, carries out optically focused (by flange 11c).Thus, as shown in Fig. 7 (A), the irradiation light L2 on the position of bank note S becomes following intensity distributions, i.e. compared with the intensity of the optical axis center position D0 of collective optics 13b, and the intensity around the optical axis center position of collective optics 13b becomes much larger.
Be irradiated on bank note S irradiate light L2 because of formed through bank note S the optical characteristics that comprises bank note S through light L3.Through light L3 after through the 2nd wall 12, form the optically focused light L4 being condensed on photo detector 15b by collective optics 13b.As it has been described above, as shown in Fig. 7 (B), the collective optics 13b being made up of Fresnel lens has uneven optical characteristics.Thus, the optical characteristics of the bank note S detected produces variant because of the incoming position relative to Fresnel lens.Specifically, on the optical axis center position of collective optics 13b, it is possible to obtain the optical characteristics of the bank note S being made up of high intensity, but the intensity of the optical characteristics of the bank note S detected around optical axis center position then becomes relatively low.
In the 1st embodiment, by using flange 11b, 11c, irradiation light L2 is made to have the intensity distributions shown in Fig. 7 (A).By the intensity distributions of such irradiation light L2, eliminate the uneven characteristic of collective optics 13b, thus for the width of transport path, making the intensity distributions of the optically focused light L4 after just passing through collective optics 13b become substantially certain.Fig. 7 (C) indicates that just through the figure of the intensity distributions of the optically focused light L4 in (face of the Z axis negative sense of collective optics 13b) after collective optics 13b.Additionally, Fig. 7 (C) is the bank note S situation as blank sheet of paper etc. with uniform optical characteristics, or do not make the bank note S state passed through.Now, the intensity distributions of optically focused light L4 is the value after the optical characteristics of the intensity distributions irradiating light L2 shown in Fig. 7 (A) and the collective optics 13b shown in Fig. 7 (B) being added.The intensity distributions of the optically focused light L4 shown in Fig. 7 (C) forms the intensity distributions that the ideal value with the above-mentioned rectangle shown in Figure 16 is close.
Fig. 8 is for the 1st embodiment, and for multiple optical sensor portion 10A~10E, the figure of the intensity distributions irradiating light L2 and optically focused light L4 on the width of expression transport path.The intensity distributions irradiating light L2 and optically focused light L4 formed by multiple optical sensor portion 10A~10E formed respectively enumerate the intensity distributions of Fig. 7 (A), Fig. 7 (C) the form of intensity distributions.Additionally, as shown in Figure 8, flange 11b is shared by optical sensor portion 10A and optical sensor portion 10B.Flange 11c~11e for other is also same, is shared by multiple optical sensor portion 11B~11E.In the 1st embodiment, it is arranged on the width of transport path owing to making multiple optical sensor portion 10A~10E adjacent, therefore in the gamut of the width of transport path, it is achieved that the intensity distributions of substantially certain optically focused light L4.That is, in the 1st embodiment, in the substantially gamut of bank note S, it is possible to detect the optical characteristics of bank note S equably.
Fig. 9 indicates that the figure of the scan mode of the optical sensor portion 10A~10E of the 1st embodiment.Each optical sensor portion 10A~E laterally scanning paper currency S, and each photo detector 15a~15e is by sample message U (magnitude of voltage) output based on scanning position.In fig .9, the scope of optical sensor portion 10A 1 the sample message U obtained on certain opportunity is indicated by tetragonal solid box.Along with the conveying of bank note S, it is sampled on each stipulated time or each regulation conveying capacity by photo detector 15a~15e, and on the position move dashed interval, obtains sample message U.Each optical sensor portion 10A~10E is on the width (longitudinal direction of Fig. 9) of bank note S, it is possible to obtain the sample message row R1~R5 adjoined each other.Thus, in the 1st embodiment, it is possible to the characteristic being used for judging of the wider range of bank note S is detected.Additionally, the sample message U in each sample information row R1~R5 is upper adjacent at the length direction (transverse direction of Fig. 9) of bank note and repeat in figure but it also may in the way of making to leave between each sample information U, or make its mode repeated obtain.
The judgement relevant to paper is by each sample information row R1~R5 for being achieved in that, for the position of each optical sensor portion 10A~10E, is compared to carry out with the normal data prestored.
In order to confirm the effect of the 1st embodiment, test paper using ST is used to carry out the optical characteristics test of bill handling device 1.In Fig. 10, the top view of the test paper using ST that optical characteristics determination test uses is indicated.In the central authorities of test paper using ST, it is formed with the hole ST1 of the shape of right angled triangle.Test paper using ST is inserted into bill handling device 1 to the direction (left-hand) of the arrow shown in figure.Along with test paper using ST is transferred, the opening amount of the hole ST1 on the width (longitudinal direction of Figure 10) of transport path reduces.In this optical characteristics is tested, for the aggregate value of optical sensor portion 10A~10E, measure the relation of the conveying capacity of paper and the aggregate value of the signal intensity of photo detector 15b~15e.
Figure 11 (A) is the form being formed without flange on the 1st wall 11, and Figure 11 (B) is then on the 1st wall 11 and is formed with the form of flange 11b on the optical axis center position of collective optics 13b.And, Figure 11 (C) is equivalent to the 1st embodiment of the present invention, is the form being formed with flange 11b, 11c in the way of having the intensity distributions of regulation.In the lower section of each figure, indicate with the conveying capacity of paper for transverse axis, the curve being the longitudinal axis with the aggregate value of the signal intensity of photo detector 15b~15e.In Figure 11 (A)~Figure 11 (C), define following shape, i.e. because hole ST1 begins through, and signal intensity increase, and along with hole ST1 by and signal intensity attenuation.It is shaped as right angled triangle due to hole ST1 as shown in Figure 10, therefore with the conveying of test paper using ST, the width linearity ground decay of the hole ST1 on the width of transport path.Thus, the aggregate value of the signal intensity of photo detector 15b~15e is ideally for decay linearly.
Each curve of (C) from Figure 11 (A) to Figure 11 is observed, it is known that hole ST1 by time linear be Figure 11 (C) the most well, and with Figure 11 (A), the order of Figure 11 (B) deteriorates.In Figure 11 (A), the reason of linear deterioration in characteristics is because of the inhomogeneities of the optical characteristics of collective optics 13a~13e, and cannot follow the tracks of the change of the opening amount of the hypotenuse of hole ST1.Additionally, the reason that in Figure 11 (B), linear characteristic deteriorates further is, because the light-focusing function of flange 11a~11e there occurs overlapping with the inhomogeneities of the optical characteristics of collective optics 13a~13e, thus the change of opening amount produced by the hypotenuse of hole ST1 cannot be followed the tracks of.From the result of the test that the optical characteristics shown in Figure 11 (C) is tested, in the 1st embodiment of the present invention, achieve the High Linear of the change of the opening amount following the tracks of hole ST1, such that it is able in the detection range of optical sensor portion 10C, equably the optical characteristics of bank note etc. is detected.
Figure 12 indicates that the flow chart that the judgement of the bill handling device 1 involved by embodiments of the present invention processes.When detection has bank note S to be inserted in bill handling device 1, then control portion 30 rotates and drives roller 42A~42D, thus starting the conveying (S101) of bank note S.Then, control portion 30 receives the conveying along with bank note S and from the sample message U of each optical sensor portion 10A~10E output, and performs the acquisition of storage sample message row R1~R5 in the memory element in CPU31 and process (S102).In addition, in order to make the accuracy of identification of bank note S improve, it is also possible to perform other pattern identification based on the sample message (S108) obtained on the sample message row obtained on each optical sensor portion 10A~10E or the sensor beyond optical sensor portion 10A~10E and process (S200).
In the present embodiment, by the sample message U obtained with the normal data of storage compares to obtain similarity (S103) in the memorizer in CPU31 in advance.Result of the comparison, when the similarity being judged as each sample information and the normal data obtained is in prescribed limit (S104:Yes), it is judged as genuine notes (S105), and (S104:No) is judged as it not being genuine notes (S106) when being judged as being in beyond prescribed limit.
(the 2nd embodiment)
Although in the 1st embodiment, in the light source portion of injection light source light, employing multiple light-emitting component 14a~14e, but light source portion can adopt in various manners.
In Figure 13~Figure 15, indicate the composition of the optical sensor portion 15A~15E of the 2nd embodiment.Additionally, it is also same that the composition of Fig. 1, bill handling device illustrated in fig. 21, control illustrated in fig. 3 are formed in the 2nd embodiment.In the present embodiment, multiple light-emitting component 14a~14e that light guide section 16 replaces using in the 1st embodiment are employed.Figure 13 represents the sectional view of the optical sensor portion 15A~15E on the width of transport path.In the 1st embodiment, employ light-emitting component 14a~14e, the 1st wall 11 flange 11a~11f as forming the illuminating part irradiating light L2, but in the 2nd embodiment, then different on this point of using light guide section 16 as illuminating part.
The light guide section 16 of present embodiment is configured to, and possesses: and the guide path 161 that configure relative with the back side of the 1st wall 11;Light-emitting component 163R, 163L of configuration on the left and right of guide path 161;And by the light penetrated from light-emitting component 163R, 163L to light path converting portion 162R, 162L that guide path 161 guides.Light-emitting component 163R, 163L are made up of LED etc., penetrate light source light to Z axis negative sense.From the light of light-emitting component 163R, 163L injection by light path converting portion 162R, 162L, and it is directed in guide path 161.The light being directed into guide path 161 irradiates light L2 to the 1st wall 11 side injection.
Figure 14 is the amplification view of the optical sensor portion 10B on the width of transport path.The guide path 161 of present embodiment is made up of the light pipe 162 on inner face with reflecting surface 163.On the right side of the sectional view of the YZ plane of guide path 161, indicate the sectional view of the guide path 161 of ZX plane.From light source light repeated reflection on the inner face of guide path 161 of light-emitting component 163R, 163L injection, and it is shot up from the 1st wall 11 side as light source light L1.Light source light L1 is by through flange 11b, 11c of being formed on the 1st wall 11, in a same manner as in the first embodiment, and forming the irradiation light L2 of the intensity distributions with regulation and irradiate bank note S.Pass through the 2nd wall 12 and collective optics 13b through the light L3 that passes through after bank note S, and form optically focused light L4, and incide photo detector 15b.
In fig .15, corresponding and indicate the irradiation light on the width of the transport path of the 2nd embodiment, intensity distributions with constituting of optical sensor portion 10A~10E.The intensity distributions irradiating light L2 of the 2nd embodiment in a same manner as in the first embodiment, is flange 11b, the 11c by being formed on the 1st wall 11 and is implemented, thus forming the intensity distributions same with the 1st embodiment illustrated in fig. 8.By the combination by the optical characteristics of the collective optics 13 of Fig. 7 (B) He the intensity distributions of this irradiation light L2, relative to the width of transport path, just the intensity through the optically focused light L4 after collective optics 13b becomes substantially certain.Thus, even if in the 2nd embodiment, it is also possible on the substantially gamut of bank note S, detect the optical characteristics of bank note S equably.
In addition, although in the 1st embodiment, the 2nd embodiment, flange 11a~the 11f to bank note transport path lateral process is employed in order to realize the intensity distributions of regulation, but in the 2nd embodiment, it is possible to use guide path 161 gives and irradiates the light L2 intensity distributions with regulation.Such as, it is contemplated that by changing the reflectance of the Y direction of the reflecting surface 163 arranged on guide path 161 according to the position of Y-axis, give from the light source light L1 of the guide path 161 injection intensity distributions with regulation.At this point it is possible to the intensity distributions realizing specifying is without arranging flange 11a~11f.Additionally, the realization of such prescribed strength distribution employing light pipe 162 is not limited to use the mode of reflecting surface 163, it is possible to employing adjusts the various modes such as the transmitance of light pipe 162 according to the position of Y-axis.It addition, the composition of light guide section 16 can also adopt various composition, and it is not limited to the composition of present embodiment.
Symbol description
1: bill handling device;10A~10E: optical sensor portion;12: the 2 walls;11a~11f: flange;111: lightening hole;121: by unthreaded hole;13a~13e: collective optics (Fresnel lens);14a~14e: light-emitting component;15a~15e: photo detector;162R, 163L: light path converting portion;163R, 163L: light-emitting component;14: light-emitting component;15: photo detector;16: light guide section;161: guide path;30: control portion;31:CPU;32:D/A transducer;33:A/D transducer;34,36: communication I/F;42A~42D: drive roller;43A~43D: driven voller.

Claims (4)

1. a sheet paper identification device, it is characterised in that possess supply unit, optical sensor portion and control unit,
Described delivery section is carried as the paper judging object in transport path,
Described optical sensor portion has irradiates the illuminating part of light to the paper passed through on described transport path, the light that irradiates passing through the paper passed through on described transport path is carried out the Fresnel lens of optically focused and to the light accepting part being carried out light by the optically focused light of described Fresnel lens optically focused
Described control unit is based on the output signal of described light accepting part, and the true and false carrying out described paper judges,
And the intensity distributions on the width of described transport path of described irradiation light is that, compared with the intensity of the optical axis center position of described light collecting part, the intensity around the optical axis center position of described light collecting part is bigger.
2. sheet paper identification device according to claim 1, it is characterized in that, when having carried out adding to the optically focused characteristic of the described Fresnel lens in the described intensity distributions of described irradiation light and the width of described transport path, relative to the width of described transport path, just the intensity through the described optically focused light after described Fresnel lens is substantially certain.
3. sheet paper identification device according to claim 1, it is characterised in that
Described illuminating part has: the light source portion of injection light source light;And flange, it is configured in the light path of the light source light emitted by described light source portion, to described transport path lateral process, and makes light transmission,
By making described light source light through described flange, generate the described irradiation light with described intensity distributions.
4. sheet paper identification device according to claim 1, it is characterised in that there is multiple described optical sensor portion, and relative to the width of described transport path, each described optical sensor portion is configured on different positions.
CN201580002996.2A 2014-08-05 2015-06-03 Paper sheet processing device Pending CN105814612A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014159123A JP2016035723A (en) 2014-08-05 2014-08-05 Paper sheet processor
JP2014-159123 2014-08-05
PCT/JP2015/066096 WO2016021294A1 (en) 2014-08-05 2015-06-03 Paper sheet processing device

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CN105814612A true CN105814612A (en) 2016-07-27

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CN201580002996.2A Pending CN105814612A (en) 2014-08-05 2015-06-03 Paper sheet processing device

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CN (1) CN105814612A (en)
HK (1) HK1224070A1 (en)
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CN103124987A (en) * 2010-09-22 2013-05-29 日立欧姆龙金融系统有限公司 Paper sheet identification device

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CN101351739A (en) * 2005-10-21 2009-01-21 罗门哈斯丹麦金融有限公司 Backlight arrangement for uniform illumination using surface-emitting light source
JP5178722B2 (en) * 2006-08-22 2013-04-10 エムイーアイ インコーポレーテッド Sensor device for document acceptor using light transmission measurement
CN201498039U (en) * 2009-02-25 2010-06-02 武林 Device for identifying authenticity of bank paper
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