WO2014101381A1 - 薄片类介质厚度鉴别装置及其鉴别方法 - Google Patents
薄片类介质厚度鉴别装置及其鉴别方法 Download PDFInfo
- Publication number
- WO2014101381A1 WO2014101381A1 PCT/CN2013/078628 CN2013078628W WO2014101381A1 WO 2014101381 A1 WO2014101381 A1 WO 2014101381A1 CN 2013078628 W CN2013078628 W CN 2013078628W WO 2014101381 A1 WO2014101381 A1 WO 2014101381A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thickness
- shaft
- synchronous belt
- data
- belt gear
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims abstract description 36
- 239000013013 elastic material Substances 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims 2
- 239000010409 thin film Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/16—Testing the dimensions
- G07D7/164—Thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/068—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness of objects while moving
Definitions
- the invention relates to a Chinese patent application filed on December 24, 2012 by the Chinese Patent Office, the application number is 201210571601.9, and the invention is entitled "Sheet medium thickness identification device and its identification method". Priority is hereby incorporated by reference in its entirety.
- the present invention relates to an authentication apparatus and authentication method for discriminating the thickness of a sheet-like value document in a financial self-service device. Background technique
- the thickness of banknotes is an indispensable test method for the identification of the liquidity of banknotes.
- the general mechanical contact value document thickness identification method is mainly realized by the relative rotational motion of the active component and the driven component.
- the active component is a thickness driving shaft
- the driven component includes a shaft and a floating member mounted on the shaft.
- the floating member has a surface tangential contact with the thickness driving shaft under the external pressure, and can be changed up and down with the thickness of the banknote. Floating, so the thickness of the banknote can be detected.
- the mechanical contact type document thickness discriminating device has a very smooth thickness of the active shaft surface and the driven shaft surface due to the processing precision requirement, and at the same time, since the active device drives the driven device to rotate during the design, it is generated during the rotation process.
- the slip phenomenon causes the same point on the thickness drive shaft to be tangent to any point on the surface of the driven shaft.
- the phase of the output is not regular, and the period is not changed, resulting in inaccurate thickness detection results.
- the thickness of the drive shaft and the follower The shaft has slipping phenomenon, which causes the sliding surface friction of the shaft surface during the rotation process to accelerate the surface wear of the shaft and reduce the precision.
- the measured objects with the same thickness are consistent in different time periods. That is to say, the problem of slippage brings errors to the thickness detection of the value document, which reduces the measurement accuracy of the thickness detection and affects the detection rate of the financial equipment. Summary of the invention
- the present invention provides a sheet medium thickness discriminating device for preventing slipping of the main shaft and the driven shaft and a discriminating method thereof.
- the sheet medium thickness discriminating device comprises: a frame comprising two side plates and a front surface for mounting and carrying the following components; a thickness shaft, the two ends of which are mounted on the two side plates of the frame by bearings a floating shaft, the two ends of which are mounted on the two side plates of the frame by bearings, the outer surface of the floating shaft is in tangential contact with the outer surface of the thickness shaft; an inductor is mounted on the front surface of the frame for detecting the An amplitude of a tangent point of the floating axis tangential to the thickness axis; wherein a first timing pulley is fixedly coupled to one end of the thickness shaft, and the first timing belt passes through a first timing belt and a first timing belt a second timing pulley is fixedly connected to one end of the floating shaft, and the
- the first timing belt gear includes a timing pulley portion and a gear portion, and the first synchronization belt is sleeved on the timing belt portion of the first timing pulley and the first timing belt gear.
- the second timing belt gear includes a timing pulley portion and a gear portion, and the second timing belt is sleeved on the synchronous pulley portion of the second timing pulley and the second timing belt gear, the first The gear portion of the second timing belt gear meshes with the gear portion of the first timing belt gear.
- the second timing belt gear is sleeved on a bearing, and the bearing sleeve is sleeved on a shaft of the frame side plate, and the second timing belt gear is rotatable about the shaft.
- one end of the thickness shaft and the first timing pulley and one end of the floating shaft and the second timing pulley are fixedly connected by a D-shaped structure.
- the floating shaft comprises, in order from the inside to the outside, an axial center, an elastic material layer and an outer wheel shell layer, and an outer surface of the outer wheel shell layer is in tangential contact with an outer surface of the thickness shaft.
- the elastic material layer comprises at least three elastic foils, one end of each elastic foil is fixed on the axis, the other end is fixed on the inner wall of the outer wheel shell layer, and the three elastic foils are vortexed.
- the shape is uniformly distributed.
- the step 01 further includes: Step 011, the sensor collects the signal reference data VmO when no medium passes; Step 012, smooths the signal reference data VmO; and Step 013, stores the signal reference data VmO.
- the step 02 further includes: Step 021, the sensor collects the signal data Vml when the normal medium passes; Step 022, smooths the signal data Vml; Step 023, reads the signal reference data VmO; and Step 024, calculates Sheet medium standard thickness
- Hstd V (Vml(t) - VmO(t)) I n
- the first timing pulley is connected to a first timing belt gear through a first timing belt, and the second timing pulley is fixedly connected to one end of the floating shaft.
- the second timing pulley is coupled to a second timing belt gear via a second timing belt; the first timing belt gear meshes with the second timing belt gear, and the first timing belt gear is mounted on a shaft of a drive motor Therefore, the driving motor can drive the first timing belt gear to rotate, and simultaneously drive the first timing belt connected to the first timing belt to rotate, thereby driving the thickness shaft to rotate, and, in addition, due to the first timing belt gear
- the second timing belt gear meshes, so that the first timing belt gear drives the second timing belt gear to rotate in the opposite direction, and the second timing belt gear drives the second timing belt to rotate through the second timing belt, thereby driving the floating
- the shaft rotates, therefore, a drive motor simultaneously drives the thickness shaft and the floating shaft to rotate, fundamentally changing the thickness shaft to drive the rotation of the floating shaft Type, thickness effectively prevent slippage between the shaft and
- the floating shaft adopts a special combination of elastic material layer and outer wheel shell layer, so that the floating shaft satisfies the outer wheel shell layer and can rotate with the shaft center, and the elastic outer wheel shell layer can be changed according to the thickness of the sheet medium. Floating up and down, that is to say, when the sheet medium enters or exits, only the outer wheel shell layer needs to be displaced, and the entire shaft does not need to be displaced to be detected. The thickness of the sheet-like medium reduces the error.
- FIG. 1 is a schematic structural view of a sheet-like medium thickness discriminating device according to a preferred embodiment of the present invention
- Figure 2 is a schematic view showing the radial cross-sectional structure of the floating shaft shown in Figure 1;
- Figure 3 is a schematic view showing the structure of the right side of the sheet medium thickness discriminating device of Figure 1;
- FIG. 4 is a general flow chart of a method for discriminating a sheet-like medium thickness according to a preferred embodiment of the present invention
- Figure 5 is a step-by-step flow chart when calibrating the reference data
- Figure 6 is a phase-amplitude diagram of the tangent points on the thickness axis and the floating axis when no sheet-like medium enters;
- Figure 7 is a schematic diagram showing the reference amplitude of a single channel signal when no sheet medium enters
- Figure 8 is a step-by-step flow chart for calibrating the standard thickness data of the sheet medium
- Figure 9 is a schematic view showing the working principle of the sheet medium when entering the thickness discriminating device.
- Figure 10 is a phase-amplitude diagram of each cut point when a uniform thickness sheet medium enters the thickness detecting device
- Figure 11 is a schematic diagram showing the amplitude of a single channel signal after a normal sheet medium enters the thickness discriminating device
- Figure 12 is a schematic illustration of the amplitude of a single channel signal after an abnormal sheet-like medium enters the thickness discriminating device. detailed description
- a sheet-like medium thickness includes a frame 40, a thickness axis 10, a floating shaft 20, and a sensor 30.
- the frame 40 includes two side panels 41 and 42 and a front side 43 that is mounted to the front side 43 of the frame. Both ends of the floating shaft 20 and the thickness shaft 10 are respectively mounted on the side plates 41 and 42 of the frame 40, the floating shaft 20 and the thickness The shafts 10 are parallel and the outer surface is tangent. Referring to FIG. 3, one end of the thickness shaft 10 which is erected on the side plate 42 is fixedly connected with a timing belt pulley 6.
- the timing belt pulley 6 is sleeved with a timing belt 7, and the timing belt 7 is also sleeved at the timing belt of the timing belt gear 5.
- the gear portion 51 of the timing belt gear 5 meshes with the gear portion 42 of the other timing belt gear 4, and the timing belt portion 41 of the timing belt gear 4 is covered with a timing belt 7, and the timing belt 7 is also sleeved at the same time.
- the timing pulley 3 is fixedly coupled to one end of the floating shaft 20 which is mounted on the side plate 42.
- one end of the thickness shaft 10 that is erected on the side plate 42 is opened as a D-shaped shaft, and the corresponding synchronous pulley 6 defines a D-shaped groove, and the D-shaped shaft is sleeved in the D-shaped groove.
- the thickness shaft 10 and the timing pulley 6 are fixedly connected by the D-axis and the D-shaped groove.
- the floating shaft 20 and the timing pulley 3 are also fixedly connected by the same structural features.
- the drive motor 8 is fixedly mounted on the side plate 42 of the frame 40, which is mounted on the shaft 81 of the drive motor 8, i.e., the timing belt gear 5 is rotatable with the drive motor shaft 81. Further, the timing belt gear 4 is sleeved on a bearing which is riveted to a shaft 43 which is rotatably mounted on the side plate of the frame, and the timing belt gear 4 is rotatable about the shaft 43.
- the timing belt 7 drives the timing belt pulley 6 to rotate in the same direction as the timing belt gear 5. Since the timing belt pulley 6 is fixedly coupled to the thickness shaft 10, the thickness shaft 10 is driven to rotate in the same direction. At the same time, since the gear portion 52 of the timing belt gear 5 meshes with the gear portion 42 of the timing belt gear 4, when the timing belt gear 5 rotates, the timing belt gear 4 is rotated in the direction, and the timing belt 7 is driven by the timing belt 7 3 Rotating in the same direction as the timing belt gear 4, since the timing pulley 3 is fixedly coupled to the floating shaft 20, the floating shaft 20 rotates together with the timing pulley, thereby realizing a drive motor 8 to simultaneously drive the thickness shaft 10 and the floating shaft The reverse rotation of 20 fundamentally changes the mode in which the thickness shaft 10 drives the rotation of the floating shaft 20, and the drive shaft and the driven shaft are no longer distinguished, thereby avoiding the occurrence of slippage.
- the floating shaft 20 includes an axis 23, an elastic material layer 22 and an outer wheel shell layer 21 in order, and the outer surface of the floating shaft 20 is actually the outer surface of the outer wheel shell layer 21. It is in tangential contact with the outer surface of the thickness shaft 10.
- the elastic material layer 22 includes a plurality of elastic foils, as shown in FIG.
- each elastic foil is fixed on the axis 23, and the other end is It is fixed on the inner wall of the outer wheel shell layer 21, and the six elastic foils are distributed in a spiral shape and have better elastic characteristics.
- the floating shaft 20 satisfies that the outer wheel shell layer 21 can rotate with the shaft center 23, and the outer wheel shell layer 21 which ensures elasticity can be floated up and down as the thickness of the sheet medium changes.
- the elastic material layer 22 may also be in other forms, such as an elastic wire or other elastic material that is uniformly filled, and the function of the elastic material layer 22 may be achieved.
- the sheet medium thickness discriminating method of the sheet-like medium thickness discriminating device of the present embodiment will be described in detail below.
- step 01 further includes step 011, the sensor collects signal reference data VmO when no medium passes; step 012, performs smooth filtering on the signal reference data VmO; and step 013, stores signal reference data VmO.
- the outer diameter of the floating shaft 20d be CU
- the outer diameter of the thickness shaft 10 be CA
- K is a fixed constant
- the points on the thickness axis 10 be PI, P2, P3, P4.Pn; the points on the circumferential surface of the floating axis 20 are Ul, U2, U3, U4 Un, where Pn and Un are corresponding tangent points, and the position of the tangent point is recorded.
- Dn The phase-amplitude map of the phase output of each pair of tangent points when no sheet-like medium enters the rotation, as shown in Fig. 6.
- the sensor 30 can detect the displacement variation of the outer wheel shell layer 21 of the floating shaft 20, and collect data.
- the data Vi(t) ⁇ Vi(tl), Vi(t2), ..., Vi(tj), Vi(tn) ⁇ , 0 ⁇ i ⁇ n for a single channel.
- a single channel data is used for judging, and when there is a thickness abnormality of a single channel signal, it can be determined that the thickness is abnormal.
- the sensor signal Vm0 is acquired when no sheet-like medium passes through the thickness discriminating device. Since the floating axis 20 of the device rotates synchronously with the thickness axis 10, the acquired zero-value reference thickness periodically changes, and the acquired signal can be set to VmO as a signal within one cycle, as shown in FIG.
- step 02 further includes: Step 021, the sensor collects signal data Vml when the normal medium passes; Step 022, smooths the signal data Vml; Step 023, reads the signal reference data. VmO; and step 024, calculating the sheet
- Hstd V (Vm ⁇ (t) - VmO(t)) I n
- step 021 it is assumed that when a sheet-like medium 100 having a flat surface and a uniform thickness, such as a banknote, enters the thickness discriminating device, the outer wheel shell layer 21 of the floating shaft 20 is lifted upward in the direction of the arrow, as shown in FIG.
- the search data Vr the statistical Vr data is greater than The number of zero data is Vrplus, and it is judged whether Vrplus is greater than Th3. If yes, the thickness of the sheet medium is abnormal.
- Th3 is a threshold set according to the characteristics of the device, which is calculated by a formula. After Vr, the maximum allowable value of the resulting error.
- the single-channel signal amplitude when the sheet-like medium shown in Fig. 12 passes indicates that the sheet-like medium thickness is abnormal.
- the thickness axis and the floating shaft are simultaneously driven by a driving motor, thereby avoiding the phenomenon of slippage between the thickness axis and the floating shaft, reducing mechanical wear and improving the thickness discrimination accuracy.
- the floating shaft adopts a special combination of elastic material layer and outer wheel shell layer, so that the floating shaft satisfies the outer wheel shell layer and can rotate with the shaft center, and the elastic outer wheel shell layer can be changed according to the thickness of the sheet medium. Floating up and down, that is to say, when the sheet medium enters or exits, only the outer wheel shell layer needs to be displaced, and the thickness of the sheet medium can be detected without the displacement of the entire shaft, thereby reducing the error.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Controlling Sheets Or Webs (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2013370765A AU2013370765B2 (en) | 2012-12-24 | 2013-07-02 | Sheet type medium thickness identification device and identification method thereof |
EP13867896.6A EP2937841B1 (en) | 2012-12-24 | 2013-07-02 | Sheet type medium thickness identification device and identification method thereof |
US14/650,917 US9589408B2 (en) | 2012-12-24 | 2013-07-02 | Sheet type medium thickness identification device and identification method thereof |
ZA2015/04615A ZA201504615B (en) | 2012-12-24 | 2015-06-25 | Sheet type medium thickness identification device and identification method thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210571601.9 | 2012-12-24 | ||
CN201210571601.9A CN103106729B (zh) | 2012-12-24 | 2012-12-24 | 薄片类介质厚度鉴别装置及其鉴别方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014101381A1 true WO2014101381A1 (zh) | 2014-07-03 |
Family
ID=48314553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/078628 WO2014101381A1 (zh) | 2012-12-24 | 2013-07-02 | 薄片类介质厚度鉴别装置及其鉴别方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US9589408B2 (zh) |
EP (1) | EP2937841B1 (zh) |
CN (1) | CN103106729B (zh) |
AU (1) | AU2013370765B2 (zh) |
CL (1) | CL2015001719A1 (zh) |
TR (1) | TR201907005T4 (zh) |
WO (1) | WO2014101381A1 (zh) |
ZA (1) | ZA201504615B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103106729B (zh) * | 2012-12-24 | 2015-05-13 | 广州广电运通金融电子股份有限公司 | 薄片类介质厚度鉴别装置及其鉴别方法 |
CN103824375B (zh) * | 2014-02-10 | 2016-09-07 | 深圳怡化电脑股份有限公司 | 可防止卡钞的存取款模块以及存取款机 |
CN104574637B (zh) * | 2015-02-05 | 2017-04-26 | 广州广电运通金融电子股份有限公司 | 一种薄片介质的厚度检测装置 |
CN106067213B (zh) * | 2016-05-25 | 2019-02-01 | 深圳怡化电脑股份有限公司 | 一种介质厚度检测装置及方法 |
CN107730712B (zh) * | 2017-11-08 | 2020-03-27 | 深圳怡化电脑股份有限公司 | 一种干扰定位方法及装置 |
CN107680244B (zh) * | 2017-11-22 | 2024-06-14 | 深圳怡化电脑股份有限公司 | 一种介质的厚度检测装置及介质鉴别终端 |
CN113053020A (zh) * | 2019-12-27 | 2021-06-29 | 深圳怡化电脑股份有限公司 | 票据厚度的检测方法、装置、计算机设备及存储介质 |
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2012
- 2012-12-24 CN CN201210571601.9A patent/CN103106729B/zh active Active
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2013
- 2013-07-02 AU AU2013370765A patent/AU2013370765B2/en not_active Ceased
- 2013-07-02 WO PCT/CN2013/078628 patent/WO2014101381A1/zh active Application Filing
- 2013-07-02 US US14/650,917 patent/US9589408B2/en not_active Expired - Fee Related
- 2013-07-02 EP EP13867896.6A patent/EP2937841B1/en active Active
- 2013-07-02 TR TR2019/07005T patent/TR201907005T4/tr unknown
-
2015
- 2015-06-17 CL CL2015001719A patent/CL2015001719A1/es unknown
- 2015-06-25 ZA ZA2015/04615A patent/ZA201504615B/en unknown
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EP0241513B2 (en) * | 1985-10-01 | 1994-03-16 | Diebold, Incorporated | Multiple sheet indicator apparatus and method |
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Also Published As
Publication number | Publication date |
---|---|
CN103106729A (zh) | 2013-05-15 |
AU2013370765A1 (en) | 2015-07-09 |
AU2013370765B2 (en) | 2016-12-22 |
CN103106729B (zh) | 2015-05-13 |
EP2937841A1 (en) | 2015-10-28 |
TR201907005T4 (tr) | 2019-06-21 |
ZA201504615B (en) | 2016-08-31 |
US9589408B2 (en) | 2017-03-07 |
US20160203666A1 (en) | 2016-07-14 |
CL2015001719A1 (es) | 2015-08-14 |
EP2937841A4 (en) | 2015-12-09 |
EP2937841B1 (en) | 2019-05-08 |
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