WO2013185501A1 - 一种薄片类介质厚度检测装置及其方法 - Google Patents
一种薄片类介质厚度检测装置及其方法 Download PDFInfo
- Publication number
- WO2013185501A1 WO2013185501A1 PCT/CN2013/073549 CN2013073549W WO2013185501A1 WO 2013185501 A1 WO2013185501 A1 WO 2013185501A1 CN 2013073549 W CN2013073549 W CN 2013073549W WO 2013185501 A1 WO2013185501 A1 WO 2013185501A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thickness
- zero value
- detection
- sheet
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- 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
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/40—Caliper-like sensors
- G01B2210/42—Caliper-like sensors with one or more detectors on a single side of the object to be measured and with a backing surface of support or reference on the other side
Definitions
- the present invention relates to a thickness detecting technique, and more particularly to an uninterrupted detecting method and detecting device for a sheet medium in a continuous conveying process.
- the automatic processing of financial currency is getting higher and higher.
- Obtaining the thickness of the processing currency during the automatic processing is a basic detection method.
- the thickness information can be used to judge whether the current currency is old, authentic, defective, or whether tape is stuck or not.
- the above information is to determine whether the current currency is in compliance.
- the thickness data collecting device generally used in the financial self-service device is as shown in FIG.
- the distance sensor 4 is used to detect the distance between the leaf spring 3 and the distance sensor 4.
- the distance detecting means in order to obtain the thickness of one banknote 5, it is necessary to first set the distance d between the sensor 4 and the leaf spring 3 when no banknote is transported, which is called the zero value of the thickness detecting device, when the banknote passes The actual thickness value of the banknote under test can be obtained by subtracting the above zero value from the distance data actually detected by the sensor 4.
- the performance of all mechanical and electronic equipment will age with the use of time, will change with the use of the environment, the equipment will be shaken and the performance parameters will change.
- the actual mechanical zero value is detected when detecting the thickness of the banknote. There may be fluctuations. When using inaccurate zero values, the measured thickness values are not accurate and cannot be used for financial self-service machines with high precision requirements. There are currently two ways to set the relevant zero value:
- the dynamic zero value method that is, the zero value is detected once before the banknote passes, and the zero value of the currency is detected.
- the method uses the real-time data to be collected as zero value, which can avoid the influence of factors such as the use environment change. Fixed zero value is more accurate.
- the following problems still exist in this method. Due to the inherent nature of the zero-value detection device, the data acquisition has fluctuations, that is, the multiple values collected in the same environment are different, and the acquired zero value appears instantaneously larger. When the deviation occurs, the actual thickness detection value is greatly deviated, which may cause the collected thickness data to be abnormal, resulting in instability of the entire self-service financial service device. Summary of the invention
- One of the objects of the present invention is to provide a sheet-like medium thickness detection which can effectively eliminate the problem of large deviation of detection due to changes in the use environment and avoid the problem of inaccurate thickness detection caused by sudden change of detection value caused by dynamic zero-value mechanical fluctuation.
- Device
- the sheet medium thickness detecting device comprises:
- a conveying roller for conveying a sheet medium
- a detecting roller opposite to the conveying roller for conveying the sheet together with the conveying roller during conveying a medium-like medium and having an elastic displacement with the conveying roller;
- a sensor for obtaining a change in the distance between the detecting roller and the sensor
- a thickness calculating unit calculates a sheet-like medium based on a distance detection value between the detecting roller and the sensor obtained by the sensor when the sheet-type medium passes, and a standard zero value between the detecting roller and the sensor obtained by the sensor before entering the sheet-type medium Thickness value;
- a zero value correction unit for correcting the above-mentioned dynamic detection zero value according to a zero value correction formula to obtain a standard zero value
- a data storage unit for storing the preset distance measurement zero value and the operational data required for the zero value correction described above.
- the zero value correction formula is as follows:
- &frag is the dynamic detection zero value when detecting the thickness of the nth sheet-like medium
- b n represents a standard zero value when detecting the thickness of the nth sheet-like medium
- b n-1 is a standard zero value when detecting the thickness of the n-1th sheet medium
- n is a natural number greater than 0.
- b Q A Q
- a Q is the preset distance measurement zero value.
- t when t is between 0.05 and 0.2, 4 good engineering results can be obtained.
- the t is equal to 0.2.
- the sheet medium thickness detecting device further comprises a sheet medium entry discriminating module for discriminating whether or not the sheet medium is to be subjected to thickness detection.
- a leaf spring is pressed against the other side of the detecting roller with respect to the conveying roller to achieve elastic displacement between the detecting roller and the conveying roller, and the sensor is placed above the leaf spring and is relatively static with the conveying roller Stop.
- Another object of the present invention is to provide a sheet-like medium thickness detecting method, which comprises the following steps:
- the zero value modification positive formula is:
- &frag is the dynamic detection zero value when detecting the thickness of the nth sheet-like medium
- b n represents a standard zero value when detecting the thickness of the nth sheet-like medium
- ⁇ is the standard zero value when detecting the thickness of the n-1th sheet medium
- n is a natural number greater than 0.
- b Q A Q
- a Q is the preset distance measurement zero value.
- the value of t is between 0.05 and 0.25, and the value of t is preferably equal to 0.2.
- the sheet medium sorting method has the following advantages compared with the prior art:
- the real-time standard zero value is a weighted correction of the dynamic zero value and the historical standard zero value, it can effectively solve the problem that the detection data is inaccurate due to the inherent fluctuation of the zero-value detection device itself.
- FIG. 1 is a schematic structural view of a current general thickness data acquisition device
- 2 is a schematic diagram of the composition of a sheet-like medium thickness detecting device provided by the present invention
- FIG. 3 is a schematic flow chart of a sheet-like medium thickness detecting method provided by the present invention
- FIG. 4 is a method for detecting thickness of a sheet-like medium by using a fixed zero-value method.
- Figure 7 is a statistical diagram of the thickness of the sheet-like medium using the dynamic zero-value method.
- Figure 6 is a statistical diagram of the thickness of the sheet-like medium using the method provided by the present invention.
- the thickness detecting device can be arranged from one to several tens, and each thickness detecting device is mutually Independent, but it works exactly the same, only the location of the installation is different.
- a plurality of the thickness detecting devices may be disposed on the path through which the banknote passes as needed.
- the plurality of thickness detecting devices When the banknote passes, the plurality of thickness detecting devices generate corresponding banknote thickness detecting data, and each banknote is generated by the thickness detecting device.
- a set of thickness detection values When the banknote is flat, the calculated set of thickness values is uniform and is the actual thickness of the banknote; when there is a change in the thickness of the banknote, for example, if the banknote is pasted with adhesive tape, and the position of the tape is detected, the calculation is obtained.
- a set of thickness values follows the corresponding changes.
- a conveying roller 1 for conveying a sheet-like medium
- a detecting roller 2 opposite to the conveying roller 1 for conveying a sheet-like medium together with the conveying roller during transport, and having an elastic displacement with the conveying roller
- - a leaf spring 3 pressed against the other side of the detecting roller 2 with respect to the conveying roller 1
- a sensor 4 disposed above the leaf spring for obtaining a change in the distance between the leaf spring 3 and the sensor 4
- a thickness a calculating unit 6 the thickness calculating unit 6 detects the distance between the leaf spring 3 and the sensor 4 obtained by the sensor 4 when the sheet-like medium passes, and the sensing before the sheet-like medium enters
- the standard zero value between the leaf spring 3 and the sensor obtained by the device 4 calculates the thickness value of the sheet-like medium; in order to obtain an accurate standard zero value, a zero value correction unit 7 is further included for the above-mentioned dynamic detection of the zero value according to The zero value correction formula is corrected to obtain a standard zero value;
- the use of the leaf spring 3 in the present embodiment is only a solution for realizing elastic displacement between the detecting roller 2 and the conveying roller 1.
- those skilled in the art can also adopt a detecting roller.
- the rotating shaft is subjected to spring pulling or torsion spring limiting, and the like, and the present invention will not be described again.
- the sensor 4 can directly obtain the distance information between the detecting roller 2 and the sensor 4 to calculate the thickness value through the sheet-like medium.
- the process for measuring the thickness of a sheet-like medium by the sheet-like medium thickness detecting device comprises the following steps:
- &frag is the dynamic detection zero value when detecting the thickness of the nth sheet-like medium
- b n represents a standard zero value when detecting the thickness of the nth sheet-like medium
- ⁇ is the standard zero value when detecting the thickness of the n-1th sheet medium
- n is a natural number greater than 0.
- b Q A Q
- a Q is the preset distance measurement zero value.
- t when t is between 0.05 and 0.2, 4 good engineering results can be obtained.
- the t is equal to 0.2.
- a statistical chart of the thickness detection of the sheet medium by the fixed zero value method is firstly determined, and the initial fixed zero value of the sheet medium thickness detecting device is first determined;
- the current common method is that when the sheet medium thickness detecting device is officially Before use, by measuring N ( N > 0 ) times the measured zero value d when no medium enters, the measured zero value d is: ⁇ ⁇ U 2 , ... , U N , which can be calculated by the formula Fixed zero value:
- a 0 ( U!+U 2 +... +U N ) / N
- the preset fixed zero value of the sheet dielectric thickness measurement was 50 ⁇ m.
- the experimental thickness data is collected by a standard test medium having a thickness of 100 ⁇ m, and the number of sheets of the test medium is represented by the abscissa, that is, the first test medium is indicated.
- the ordinate represents the thickness data in micrometers, forming a statistical graph as shown in Fig. 4.
- the lower data line a indicates that the standard zero value used to calculate the thickness data of each test medium is a preset fixed zero value of 50 ⁇ m.
- Data line b indicating The detected thickness value of each test medium obtained is collected, and the intermediate data line c represents the detected thickness value of the test medium calculated from the difference between the detected thickness value and the preset fixed zero value.
- the data line b drifts downward, resulting in the final calculated data line c, that is, the detected thickness value is completely away from the standard test medium.
- the true thickness is 100 microns, causing serious detection errors.
- Figure 5 shows the statistical data of the thickness measurement of the sheet medium using the dynamic zero value method.
- the experimental thickness data is also collected by the standard test medium with a thickness of 100 ⁇ m, and the number of sheets of the test medium is represented by the abscissa.
- the first test medium, the ordinate indicates the thickness data, and the unit is micrometer, forming a statistical chart as shown in FIG. 5, wherein the lower data line a1 represents the standard zero value used when calculating the thickness data of each test medium, that is, each The dynamic zero value collected before the test medium detects the thickness value, the upper data line bl indicates the detected thickness value of each test medium collected, and the middle data line cl indicates the detected thickness value and the dynamic zero value. The detected thickness of the test medium was calculated from the difference.
- the experimental thickness data is also collected by a standard test medium having a thickness of 100 ⁇ m, and the number of sheets of the test medium is represented by an abscissa, that is, the first test medium is represented, and the ordinate represents the thickness data.
- the unit is micrometer, and the statistical graph shown in FIG. 6 is formed, wherein the lower data line a2 represents the standard zero value used when calculating the thickness data of each test medium, that is, before the thickness value is detected for each test medium according to the correction formula.
- the acquired dynamic zero value d is corrected for the standard zero value
- the upper data line b2 represents the detected thickness value of each test medium collected
- the middle data line c2 represents the detected thickness value and the dynamic zero value.
- the detected thickness of the test medium was calculated from the difference.
- a n represents the dynamic zero value collected before the nth currency is passed; if the dynamic zero value method is adopted, a n is the dynamic zero value when detecting the nth banknote;
- b n represents an adaptive zero value when detecting the nth banknote
- b n-1 is an adaptive zero value when detecting the n-1th banknote
- n is a natural number greater than 0.
- b Q A Q
- a Q is the preset distance measurement zero value.
- t is the correlation coefficient, 0 ⁇ t ⁇ l; the larger t is, the faster the adaptation speed is, the worse the stability is; on the contrary, the slower the adaptation speed, the better the stability.
- the standard zero value is formed after the correction of the modified zero value method of the present invention.
- the final calculated thickness value does not deviate significantly from the thickness of the standard medium of 100 mm. It can be seen that the solution can solve the problem of inaccurate detection data caused by aging and environmental changes of the detection device, and can solve the zero value detection device itself.
- the intrinsic nature causes inaccurate detection data caused by sudden fluctuations in data acquisition.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Controlling Sheets Or Webs (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2013276048A AU2013276048B2 (en) | 2012-06-11 | 2013-04-01 | Device for detecting thickness of sheet-type medium and method thereof |
| IN1016MUN2014 IN2014MN01016A (zh) | 2012-06-11 | 2013-04-01 | |
| EP13804529.9A EP2860708B1 (en) | 2012-06-11 | 2013-04-01 | Device for detecting thickness of sheet-type medium and method thereof |
| US14/353,482 US9683840B2 (en) | 2012-06-11 | 2013-04-01 | Device for detecting thickness of sheet-type medium and method thereof |
| ZA2014/03588A ZA201403588B (en) | 2012-06-11 | 2014-05-16 | Device for detecting thickness of sheet-type medium and method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210191067.9A CN102722933B (zh) | 2012-06-11 | 2012-06-11 | 一种薄片类介质厚度检测装置及其方法 |
| CN201210191067.9 | 2012-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013185501A1 true WO2013185501A1 (zh) | 2013-12-19 |
Family
ID=46948679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/073549 Ceased WO2013185501A1 (zh) | 2012-06-11 | 2013-04-01 | 一种薄片类介质厚度检测装置及其方法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9683840B2 (zh) |
| EP (1) | EP2860708B1 (zh) |
| CN (1) | CN102722933B (zh) |
| AU (1) | AU2013276048B2 (zh) |
| CL (1) | CL2014001267A1 (zh) |
| IN (1) | IN2014MN01016A (zh) |
| WO (1) | WO2013185501A1 (zh) |
| ZA (1) | ZA201403588B (zh) |
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| CN102722933B (zh) * | 2012-06-11 | 2014-08-20 | 广州广电运通金融电子股份有限公司 | 一种薄片类介质厚度检测装置及其方法 |
| 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 |
| CN103136842A (zh) | 2013-01-29 | 2013-06-05 | 广州广电运通金融电子股份有限公司 | 一种薄片类介质测厚装置 |
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| CN104266626A (zh) * | 2014-10-23 | 2015-01-07 | 成都卓微科技有限公司 | 一种多功能厚度仪 |
| CN104296712A (zh) * | 2014-10-29 | 2015-01-21 | 深圳怡化电脑股份有限公司 | 厚度传感器检测装置及方法 |
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| 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 |
| JP6358211B2 (ja) * | 2015-09-16 | 2018-07-18 | コニカミノルタ株式会社 | 用紙搬送装置、画像形成装置、用紙搬送装置の制御方法、及び用紙搬送装置の制御プログラム |
| CN105427447B (zh) * | 2015-11-04 | 2018-03-16 | 东方通信股份有限公司 | Atm机纸币检测装置及检测方法 |
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| 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 |
| US20180172422A1 (en) * | 2016-12-16 | 2018-06-21 | Climax Machine Industry Co., Ltd | Device for detecting thickness and thickness variation of a sheetlike object |
| CN106910274B (zh) * | 2017-02-28 | 2019-03-12 | 深圳怡化电脑股份有限公司 | 一种介质厚度测量方法、装置及atm机 |
| CN107131859A (zh) * | 2017-06-20 | 2017-09-05 | 深圳怡化电脑股份有限公司 | 一种厚度传感器的校正设备 |
| CN109559423B (zh) | 2018-11-23 | 2020-11-06 | 威海华菱光电股份有限公司 | 检测方法、检测装置、存储介质和处理器 |
| CN113725111B (zh) * | 2021-08-27 | 2024-01-30 | 苏州晶睿半导体科技有限公司 | 一种化合物半导体芯片的测试装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2013276048B2 (en) | 2015-01-22 |
| ZA201403588B (en) | 2015-07-29 |
| AU2013276048A1 (en) | 2014-05-08 |
| CL2014001267A1 (es) | 2014-08-01 |
| US20140309958A1 (en) | 2014-10-16 |
| EP2860708B1 (en) | 2020-10-07 |
| EP2860708A1 (en) | 2015-04-15 |
| US9683840B2 (en) | 2017-06-20 |
| EP2860708A4 (en) | 2015-06-03 |
| CN102722933A (zh) | 2012-10-10 |
| CN102722933B (zh) | 2014-08-20 |
| IN2014MN01016A (zh) | 2015-07-03 |
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