CN201589604U - Paper money thickness real-time detection device - Google Patents
Paper money thickness real-time detection device Download PDFInfo
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- CN201589604U CN201589604U CN2009201648779U CN200920164877U CN201589604U CN 201589604 U CN201589604 U CN 201589604U CN 2009201648779 U CN2009201648779 U CN 2009201648779U CN 200920164877 U CN200920164877 U CN 200920164877U CN 201589604 U CN201589604 U CN 201589604U
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- microprocessor
- time detection
- pulse signal
- magnetic field
- microwave pulse
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Abstract
The utility model provides a paper money thickness real-time detection device, which comprises upper rollers and lower rollers, paper money passes through between the upper rollers and the lower rollers, and a detection sensor formed by nesting a magnetic field excitation coil and a detection coil is arranged over each upper roller. Each magnetic field excitation coil is connected with a microwave pulse signal excitation circuit, each detection coil is connected with an amplifying, frequency division phase locking and shaping circuit, and the output of each shaping circuit is accessed into a microprocessor; relational data and a processing program of paper money thickness and microwave pulse frequency value are stored in the microprocessor, and a display device and an alarm apparatus are further connected in the microprocessor. The magnetic field excitation coils can obtain a high-frequency alternating magnetic field; when the paper money passes through, the upper rollers positioned in the magnetic field float, and the detection sensors are used for detecting the reflected magnetic signals; the magnetic signals are sent into the microprocessor after conversion treatment, the paper money thickness value is obtained in a real-time manner through the corresponding relation between the change of the resonance frequency and the paper money thickness; and when the thickness exceeds the set value, the alarm is carried out. The device can automatically identify various paper money defects, simplify the use, enable the detection to be fast and accurate and obtain the result within 1.7 ms.
Description
(1) technical field
The utility model relates to paper class detection technique field, is specially a kind of banknote thickness real-time detection apparatus.
(2) technical background
Paper class, particularly bank note need be carried out accurately banknote thickness, overlapping, unfilled corner, breakage etc., at present the detection method and the relevant device of existing multiple bank note.Wherein contactless checkout equipment mainly is to use Hall element or ultraviolet, infrared sensor or laser, ccd image sensor or strain-ga(u)ge transducer or ultrasound wave etc.As the patent No. is that the patent of invention " paper money thickness testing apparatus " of 200710177538.X ZhongChao ChangCheng finance equipment Stock Co., Ltd is magnet steel and the corresponding Hall element that adopts on the transmission arm, obtains high-precision banknote thickness testing result.Application number is the application for a patent for invention " paper money thickness testing apparatus " of 200620093037.4 Shenyang Zhongchao Xinda Financial Equipment Co., Ltd..
The shortcoming of the method for present above-mentioned detection bank note and various kinds of equipment maximum is to respond slowlyer, is difficult to and matched with devices such as high speed standard national currency machine, cleaning-sorting machine and paper money counter are used.
(3) utility model content
The purpose of this utility model is a kind of banknote thickness real-time detection apparatus of design, this device motivates high-frequency alternating magnetic field by the microwave pulse sequence signal, bank note passes through between last bottom roller, not upper and lower displacement simultaneously of the banknote thickness of driven upper roller under it of floating, the upper roller displacement produces the magnetic field eddy current, its reflection and refraction electromagnetic wave are according to the amplitude power, the thickness of contactless real-time detection bank note of its reflection or refraction electromagnetic signal.
The banknote thickness real-time detection method of the utility model design based on principle be: measured object is in the magnetic field of microwave electric pulse excitation, the displacement of measured object changes the magnetic linkage path distance of itself and driving source, detect the magnetic signal of measured object reflection or refraction, can learn its displacement.Bank note passes through between last bottom roller, the banknote thickness difference of passing through, and unsteady driven upper roller upper and lower displacement difference is the amounts of thickness variation that measured object can obtain bank note with this upper roller.
The banknote thickness real-time detection apparatus of the utility model design comprises the last bottom roller of bank note from passing through between it, and bottom roller is installed on the main drive shaft of level, and upper roller is installed on the soft of driven shaft and puts, and can fluctuate.Width of channel is greater than the length of maximum bank note between the last bottom roller.This device has 6～12 pairs to go up bottom roller.There is a detecting sensor top of each upper roller.Each detecting sensor comprises a magnetic field coil and a magnetic test coil, and two coils are nested to be one, and coil diameter is 5～8mm, and length is 7～10mm.Two coil is the enameled wire of the diameter 0.3～1.0mm of 3～12 circles.The center of magnetic test coil is by the vertical center line of its below upper roller corresponding with it, and the spacing of coil is 12～20mm.During no test sample, the spacing of magnetic test coil lower end and this upper roller peak is 0.1～5mm between the last bottom roller.
Each magnetic field coil of this device connects each microwave pulse signal excitation circuit, and each magnetic test coil connects amplifying circuit, be linked in sequence after each amplifying circuit each frequency division phase lock circuitry, shaping circuit, and the output of each shaping circuit inserts microprocessor.The feedback output end of each microwave pulse signal excitation circuit inserts each frequency division phase lock circuitry through electric capacity.Microprocessor is connected with each microwave pulse signal excitation circuit, controls the microwave pulse signal of its generation.The microprocessor internal memory contains different banknote thickness and microwave pulse signal frequency value relation data and analyzes the comparison process program.Microprocessor is connected with display.Alarm module is arranged in the microprocessor, and be connected to alarm.Maximum with the minimum setting value of thickness is arranged in the alarm module, excessive or too small when exceeding setting value when institute's Thickness Measurement by Microwave, start alarm equipment alarm.
Described microwave pulse signal excitation circuit is the microwave pulse signal excitation circuit of 1MHz～3000MHz microwave pulse signal for producing frequency.
The advantage of banknote thickness real-time detection apparatus of the present utility model is: 1, discern various bank note knuckles automatically, and overlapping, tape, and the different counterfeit money of thickness; 2, measuring speed is fast, in 5 milliseconds, even can obtain the result in 1.7 milliseconds, and non-contact detection is fit to and supporting uses such as cleaning-sorting machine and paper money counter; 3, the interference performance of anti-electromagnetic field is strong; 4, measuring accuracy height, minimum resolution reaches 0.01mm; Measurement range is 0～5mm; 5, easy to use; Be applicable to the real-time detection of bank note or paper article, also can be used for the accurately detection of the fine sheet of control thickness of needs such as Copper Foil, aluminium foil; 5, cost performance height, the life-span is long; 6, device is compact, small and exquisite, is easy to carry.
(4) description of drawings
Fig. 1 looks synoptic diagram for this banknote thickness real-time detection apparatus embodiment mounting structure master;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is this banknote thickness real-time detection apparatus embodiment circuit structure schematic block diagram.
Number in the figure is:
1, support, 2, circuit module, 3, upper roller, 4, circuit board, 5, detecting sensor, 6, button, 7, bottom roller, 8, supply socket.
(5) embodiment
This banknote thickness real-time detection apparatus comprises upper roller 3 and the bottom roller 7 of bank note from passing through between it as shown in Figure 1 and Figure 2, and main drive shaft and driven shaft are installed on the support 1.Bottom roller 7 is installed on the main drive shaft of level, and upper roller 3 is installed on the soft of driven shaft and puts, and can fluctuate.Width of channel is greater than the length of hundred yuan notes of maximum between the last bottom roller 3,7.This example has 10 pairs to go up bottom roller 3,7.The top of support 1 is a circuit board 4, and corresponding each upper roller 3 place of circuit board 4 respectively are equipped with a detecting sensor 5, and each detecting sensor 5 comprises a magnetic field coil and a magnetic test coil, and two coils are nested to be one.Magnetic field coil or magnetic test coil diameter are 10mm, and length is 9.5mm, and two coil is the enameled wire coiling of the diameter 0.8mm of 10 circles.The center of each magnetic test coil is by the vertical center line of its below upper roller 3 corresponding with it, and between the last bottom roller 3,7 during no test sample, the magnetic test coil lower end is 4mm with the spacing maximal value of corresponding upper roller 3 peaks, and minimum value is 0.1mm.
The circuit structure of this device as shown in Figure 3, each magnetic field coil connects the output terminal of each microwave pulse signal excitation circuit, each magnetic test coil connects amplifying circuit, be linked in sequence after each amplifying circuit each frequency division phase lock circuitry, shaping circuit, and the output of each shaping circuit inserts microprocessor.The output feedback of each shaping circuit inserts each microwave pulse signal excitation circuit, and is stable with the pulse signal that guarantees its generation.The feedback output end of each microwave pulse signal excitation circuit inserts each frequency division phase lock circuitry through electric capacity.Each circuit is integrated in the different circuit modules 2.Each circuit module 2 and microprocessor all are installed on the circuit board 4.Power module on the circuit board 4 is connected with supply socket 8, and power module is given each circuit module 2 and microprocessor power supply.
The microprocessor internal memory contains different banknote thickness and microwave pulse signal frequency value relation data and analyzes the comparison process program.Microprocessor is connected with display.Alarm module is arranged in the microprocessor, and be connected to alarm.Maximum with the minimum setting value of thickness is arranged in the alarm module, excessive or too small when exceeding setting value when institute's Thickness Measurement by Microwave, start alarm equipment alarm.Microprocessor has serial line interface, is used for and the host computer data communication.
Support 1, last bottom roller 3,7 and circuit board 4 are all cased, and support 1 is fixedlyed connected with shell.On the shell there be into the coin mouth the corresponding banknote path that goes up between the bottom roller 3,7.Supply socket 8, power switch, measurement button also are installed on the shell.Power connection joins through power switch and power module.Microprocessor links to each other with detection button 6 on the shell by winding displacement, selects the different measuring patterns with button 6, and microprocessor press distinct program and handled the gained electric signal, just draws the thickness of correspondence according to resonant frequency value.
After the energized, bottom roller 7 rotates, and bank note is sent into from going into the coin mouth, and each detecting sensor 5 is carried out data acquisition automatically, and sends into interlock circuit and handle, and the result shows at display, reports to the police when banknote thickness surpasses setting value.
Measured result is as shown in table 1 in this example.Behind the microwave pulse signal frequency process frequency division that each magnetic field coil produces in the table 1 is 52MHz.It is directly related with the sample actual (real) thickness to detect frequency resultant by the visible this law of the measured frequency resultant of different-thickness sample microprocessor in the table 1, and the result is stable, and error is less than 0.3%, so the correct thickness of timely test sample of this device.
The thickness transducer device measured result of table 1 bank note and ribbon
Claims (8)
1. the banknote thickness real-time detection apparatus comprises the last bottom roller (3,7) of bank note from passing through between it, and bottom roller (7) is installed on the main drive shaft of level, and width of channel is greater than the length of maximum bank note between the last bottom roller (3,7); It is characterized in that:
Described upper roller (3) is installed on the soft of driven shaft and puts, and can fluctuate, and has 6～12 pairs to go up bottom roller (3,7); There is a detecting sensor (5) top of each upper roller (3); Each detecting sensor (5) comprises a magnetic field coil and a magnetic test coil, and two coils are nested to be one, and the center of magnetic test coil is by the vertical center line of its below upper roller (3) corresponding with it;
Above-mentioned each magnetic field coil connects each microwave pulse signal excitation circuit, and each magnetic test coil connects amplifying circuit, be linked in sequence after each amplifying circuit each frequency division phase lock circuitry, shaping circuit, and the output of each shaping circuit inserts microprocessor; The feedback output end of each microwave pulse signal excitation circuit inserts each frequency division phase lock circuitry through electric capacity; Microprocessor is connected with each microwave pulse signal excitation circuit, and the microprocessor internal memory contains different banknote thickness and microwave pulse signal frequency value relation data and analyzes the comparison process program.
2. banknote thickness real-time detection apparatus according to claim 3 is characterized in that:
Described microwave pulse signal excitation circuit is the microwave pulse signal excitation circuit of 1MHz～3000MHz microwave pulse signal for producing frequency.
3. banknote thickness real-time detection apparatus according to claim 1 and 2 is characterized in that:
Described magnetic field coil or magnetic test coil diameter are 5～8mm, and length is 7～10mm, and spacing is 12～20mm.
4. banknote thickness real-time detection apparatus according to claim 3 is characterized in that:
Described magnetic field coil or magnetic test coil are the enameled wire of the diameter 0.3～1.0mm of 3～12 circles.
5. banknote thickness real-time detection apparatus according to claim 1 and 2 is characterized in that:
Described when going up between the bottom roller (3,7) no test sample, the magnetic test coil lower end is 0.1～5.0mm with the spacing of corresponding upper roller peak.
6. banknote thickness real-time detection apparatus according to claim 1 and 2 is characterized in that:
Described microprocessor is connected with host computer with display.
7. banknote thickness real-time detection apparatus according to claim 1 and 2 is characterized in that:
In the described microprocessor alarm module is arranged, maximum with the minimum setting value of thickness is arranged in the alarm module, and be connected to alarm.
8. banknote thickness real-time detection apparatus according to claim 1 and 2 is characterized in that:
The output feedback of described each shaping circuit inserts each microwave pulse signal excitation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201648779U CN201589604U (en) | 2009-11-24 | 2009-11-24 | Paper money thickness real-time detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201648779U CN201589604U (en) | 2009-11-24 | 2009-11-24 | Paper money thickness real-time detection device |
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| Publication Number | Publication Date |
|---|---|
| CN201589604U true CN201589604U (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201648779U Expired - Lifetime CN201589604U (en) | 2009-11-24 | 2009-11-24 | Paper money thickness real-time detection device |
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| CN (1) | CN201589604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017295A (en) * | 2016-07-15 | 2016-10-12 | 上海古鳌电子科技股份有限公司 | Banknote thickness measurement device and banknote thickness detection method |
| CN107481405A (en) * | 2017-08-22 | 2017-12-15 | 昆山古鳌电子机械有限公司 | A kind of thickness detector for paper sheet |
-
2009
- 2009-11-24 CN CN2009201648779U patent/CN201589604U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017295A (en) * | 2016-07-15 | 2016-10-12 | 上海古鳌电子科技股份有限公司 | Banknote thickness measurement device and banknote thickness detection method |
| CN106017295B (en) * | 2016-07-15 | 2019-05-14 | 上海古鳌电子科技股份有限公司 | A kind of note thickness measurement device and banknote thickness detection method |
| CN107481405A (en) * | 2017-08-22 | 2017-12-15 | 昆山古鳌电子机械有限公司 | A kind of thickness detector for paper sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN YIHUA COMPUTER LTD. Free format text: FORMER OWNER: ZHU YING Effective date: 20120613 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 541004 GUILIN, GUANGXI ZHUANG AUTONOMOUS REGION TO: 518038 SHENZHEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120613 Address after: 27, A02, building 518038, Allianz building, 4018 Jintian Road, Shenzhen, Guangdong, Futian District Patentee after: Shenzhen Yihua Computer Ltd. Address before: Guilin City, the Guangxi Zhuang Autonomous Region Jinji road 541004 No. 1 Guilin University of Electronic Technology Patentee before: Zhu Ying |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN YIHUA COMPUTER CO., LTD. Free format text: FORMER NAME: SHENZHEN YIHUA COMPUTER LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 27, A02, building 518038, Allianz building, 4018 Jintian Road, Shenzhen, Guangdong, Futian District Patentee after: Shenzhen Yihua Computer Co., Ltd. Address before: 27, A02, building 518038, Allianz building, 4018 Jintian Road, Shenzhen, Guangdong, Futian District Patentee before: Shenzhen Yihua Computer Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |