CN2874636Y - Paper banknote identifier with magnetic false identifying function - Google Patents
Paper banknote identifier with magnetic false identifying function Download PDFInfo
- Publication number
- CN2874636Y CN2874636Y CNU2005200659994U CN200520065999U CN2874636Y CN 2874636 Y CN2874636 Y CN 2874636Y CN U2005200659994 U CNU2005200659994 U CN U2005200659994U CN 200520065999 U CN200520065999 U CN 200520065999U CN 2874636 Y CN2874636 Y CN 2874636Y
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- magnetic
- bank note
- signal
- darkroom
- magnetic head
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Abstract
The utility model relates to a bank note identifier with magnetic identification function, which comprises a magnetic head (1), a signal processing circuit and a SCM (4). Wherein, the magnetic head (1) is arranged on a wall of a darkroom (2) at the bank note inlet (21). The other wall towards the magnetic head (1) is provided with a compacting device (7). An alignment sensor (5) is available at the back end of the darkroom (2). As the bank note is pushed into the darkroom (2), the SCM firstly receives the message about the bank note arrival inducted by the alignment sensor (5) and then emits a control command to make the bank note tightly contact the magnetic head (1) by means of compacting device (7). As the bank note is withdrawn away the darkroom (2) in parallel, the magnetic head (1) will collect magnetic signals on the bank note and then transmit the signal to the signal processing circuit after being converted into electric signal. Finally, the SCM (4) inputs identification results. The utility model provides a bank note identifier featuring simple structure, lower price but accurate identification for units or individually-owned businesses with small sum of cash settlement.
Description
Technical field
The utility model relates to a kind of device of the identification note true and false, relates in particular to the improvement to magnetic false distinguishing mechanism.The utility model device can be widely used in having the cash receipt and payment professional but with small amount the bank note false distinguishing of enterprise, public institution and self-employed entrepreneur.
Background technology
The false distinguishing mode that generally adopts on the present static discriminating machine for fake RMB has: fluorescence false distinguishing, false distinguishing and magnetic false distinguishing such as infrared.Wherein infrared false distinguishing principle of work is to have adopted infrared sensor to pick up the light characteristic that infrared printing printing ink is shown in the specific region on the genuine notes under the infrared excitation of specific wavelength, and convert thereof into electric signal, after amplification and comparison process, differentiate; It is stronger that fluorescence false distinguishing principle of work is that the purple light that utilizes ultraviolet light to send shines on the counterfeit money fluorescence reflection, fluorescence reflects more weak this physical characteristics on the genuine notes and shine, pick up the reflected fluorescent light of counterfeit money, and convert thereof into electric signal, after amplification and comparison process, differentiate; The magnetic false distinguishing divides the magnetic false distinguishing and two kinds of the magnetic false distinguishings that detects automatically of artificial friction: wherein the magnetic false distinguishing principle of work of artificial friction is to utilize this physical characteristics of printing ink that is magnetic on the genuine notes, pick up magnetic signal on the genuine notes by the friction that the magnetic ink position on the genuine notes and magnetic head is artificial, and convert thereof into electric signal, after amplification and comparison process, differentiate, such discriminating machine for fake RMB, owing to influenced by manually the rub mode, skill level etc. of magnetic head of user, cause easily to the omission of counterfeit money with to the flase drop of genuine notes; Automatically the magnetic false distinguishing principle of work that detects be when with bill on request from the insertion of discriminating machine for fake RMB inlet slot of paper note and when covering into the paper money sensor, single-chip microcomputer receives bank note and advances the paper money signal, send a signal driving motor by the IO mouth, motor is by driving by synchronous pulley, be with synchronously, money pressing wheel, transmission shaft, the gear train that bearing etc. are formed drives bill, making bill decide direction along mistake paper money plate gauge moves, when the magnetic ink position on the bank note rubs fully with the magnetic head that was installed in paper money plate inwall, magnetic head collects the magnetic signal at magnetic ink position on the banknote, this signal is after a series of processing such as amplification conversion, the single-chip microcomputer of delivering to discriminating machine for fake RMB carries out quantitative analysis, just can identify the true and false of magnetic signal, and be that false bank note is reported to the police to magnetic signal, but such discriminating machine for fake RMB complex structure, the cost height is not suitable for cash receipt and payment business but the few enterprise of number, vast colony such as public institution and self-employed entrepreneur.
The utility model content
The technical problems to be solved in the utility model provides the low and high paper banknote identifier with magnetic false identifying function of discriminating accuracy of a kind of cost.
The purpose of this utility model can realize by adopting following technical measures: design a kind of paper banknote identifier with magnetic false identifying function, comprising: the magnetic head, signal processing circuit and the single-chip microcomputer that are used to gather the note to be identified magnetic signal; Described magnetic head is installed in a wall in the darkroom that is provided with inlet slot of paper note, is provided with a hold down gag over against another wall of magnetic head, and the rear end in described darkroom also is provided with level sensor;
Note to be identified is pushed into the darkroom from inlet slot of paper note, described bank note front end arrives the level sensor that arrives of rear end, darkroom, described single-chip microcomputer receives the information that puts in place of the bank note that level sensor responds to and controls described hold down gag bank note is pressed on the magnetic head, the parallel darkroom that detaches of bank note, described magnetic head picks up the magnetic signal on the bank note and converts thereof into electric signal, and this electric signal is sent to the signal processing circuit processing and exports identification result by described single-chip microcomputer.Adopt said structure can guarantee that magnetic head fully contacts with bank note, make the accuracy height of testing result, eliminated the error that manual operation brings.
Described hold down gag comprises: bank note compact heap, electromagnet and solenoid driver circuit; Described bank note compact heap is fixedlyed connected over against magnetic head and with the movable core of electromagnet, and described solenoid driver circuit connects the signal output part of single-chip microcomputer.The movable core of single-chip microcomputer by solenoid driver circuit control electromagnet moves down or resets, and this movable core drives bank note compact heap and moves down bank note is pressed on the magnetic head or upwards and reset.
Described signal processing circuit comprises: magnetic signal Acquisition Circuit, signal amplification circuit and the analog to digital conversion circuit of the unidirectional connection of order, and described magnetic signal Acquisition Circuit is connected with magnetic head electrical, and the signal output part of analog-digital conversion circuit as described connects single-chip microcomputer.
Described signal amplification circuit comprises prime signal amplification circuit, secondary signal amplifying circuit and the back level signal amplification circuit of the unidirectional connection of order.
For making identification result more accurate, described magnetic head and bank note compact heap are arranged on the left side in darkroom or the position of right side and close inlet slot of paper note, and this position is corresponding with the magnetic ink position on the bank note and can guarantee with bank note enough rubbing contact length is arranged.
Front end in described darkroom also is provided with into paper money sensor, does not have in described darkroom under the state of bank note, and described single-chip microcomputer receives the no bank note information of paper money sensor into and to control signal that the bank note compact heap resets of described hold down gag output.
Compared with prior art, paper banknote identifier with magnetic false identifying function of the present utility model has adopted new technological means cheaply---and be used as power with electromagnet and realize the magnetic false identifying function of identifier, make the currency identifier have " accurate power ", eliminated the error that artificial magnetic false distinguishing is brought greatly, and simple in structure, its maximum characteristics are that cost is low and performance is good.
Description of drawings
Fig. 1 is the functional-block diagram that the utlity model has the paper banknote identifier of magnetic false identifying function;
Fig. 2 is the structural representation of horizontal direction that the utlity model has the paper banknote identifier of magnetic false identifying function;
Fig. 3 is A-A directional profile figure among Fig. 2;
Fig. 4 is the position view of the magnetic stripe 8 of 2 bottoms, described darkroom setting;
Fig. 5 is the circuit theory diagrams of described single-chip microcomputer 35;
Fig. 6 is described schematic diagram to level sensor 5 circuit and signal amplification circuit.
Embodiment
Below in conjunction with drawings and Examples the technical solution of the utility model is elaborated.
As shown in Figures 2 and 3, the utlity model has in the housing 9 of paper banknote identifier of magnetic false identifying function and be provided with a darkroom 2, this darkroom 2 communicates with the inlet slot of paper note 21 that is positioned at housing 9 front sides, 2 rear end is provided with level sensor 5 in the darkroom, darkroom 2 front ends are provided with into paper money sensor 6, one magnetic head 1 that is used to gather the note to be identified magnetic signal is installed on the diapire in darkroom 2, on the roof of this magnetic head 1, hold down gag 7 is installed, this hold down gag 7 comprises electromagnet 72, the bank note compact heap 71 and the solenoid driver circuit 73 of fixedlying connected with the movable core 721 of electromagnet 72, described bank note compact heap 71 and magnetic head 1 over against.
As shown in Figure 1, be provided with control circuit in the described housing 9, this control circuit comprises a single-chip microcomputer 4, solenoid driver circuit 73, and the signal processing circuit of being made up of magnetic head signal acquisition circuit 31, signal amplification circuit 32 and analog to digital conversion circuit 33; Described signal amplification circuit 32 comprises prime signal amplification circuit 321, secondary signal amplifying circuit 322 and the back level signal amplification circuit 323 of the unidirectional connection of order again; Described magnetic head signal acquisition circuit 31, prime signal amplification circuit 321, secondary signal amplifying circuit 322, back level signal amplification circuit 323 and 33 unidirectional connections of order of analog to digital conversion circuit, this analog to digital conversion circuit 33 is integrated in the single-chip microcomputer 4, and its signal output part is connected with single-chip microcomputer 4.Described solenoid driver circuit 73 connects the signal output part of single-chip microcomputer 4, and is electrically connected with electromagnet 72; Described magnetic head signal acquisition circuit 31 is electrically connected with magnetic head 1, and this magnetic head 1 is a magneto-dependent sensor; Described input end to level sensor 5 connection single-chip microcomputers 4, described single-chip microcomputer 4 is by hummer and pilot lamp output bank note identification result.
As shown in Figure 5 and Figure 6, during use, note to be identified is pushed darkroom 2 from inlet slot of paper note 21, when the bank note front end arrives 2 rear ends, darkroom, when bank note covers the receiving tube of level sensor 5, send the signal that puts in place to level sensor 5 to single-chip microcomputer 4, described single-chip microcomputer 4 sends a low level signal from the IO mouth and gives solenoid driver circuit 73, this moment, solenoid driver circuit 73 made triode Q103 conducting by resistance R 157, resistance R 144, the R158 node transfers high level to, this high level makes triode Q104 conducting by resistance R 158, this moment, electromagnet K102 and power supply and ground formed the loop, electromagnet is started working, adhesive control movable core 721 by electromagnet moves down bank note compact heap 71 bank note is pressed on the magnetic head 1, this moment is with bank note parallel extraction from darkroom 2, along with relatively moving of bank note and magnetic head 1, magnetic head 1 picks up that magnetic ink position and magnetic head 1 fully contact the magnetic signal that produces on the bank note, and be transferred to by resistance R 203 after converting thereof into electric signal, R204, R207, R208, R218, capacitor C 210, C209, C216, C213, the prime signal amplification circuit 321 that amplifier LM324 (U203D) forms amplifies; Signal after amplifying is via resistance R 209, R210, R219, capacitor C 213, C217, C214, and the secondary signal amplifying circuit 322 that amplifier LM324 (U203C) forms amplifies once more; Amplifying signal is via resistance R 211 once more, R214, R215, R216, R217, capacitor C 218, adjustable potentiometer VR201, the back level signal amplification circuit 323 that amplifier LM324 (U203B) forms amplifies once more, last amplifying signal becomes digital signal through analog to digital converter 33 with conversion of signals, again this digital signal is committed to single-chip microcomputer U105, single-chip microcomputer U105 carries out quantitative analysis to this digital signal the true and false of recently judging this bank note is also exported identification result by hummer BZ101 and pilot lamp, and described pilot lamp is by light emitting diode D107, D108 and D109 form.
As shown in Figure 2, in order to make identification result more accurate, the left side central portion that described magnetic head 1 is installed in darkroom 2 is near inlet slot of paper note 21 places, guarantee on the bank note to be checked the magnetic ink position can with magnetic head 1 over against, and can guarantee that magnetic head 1 and bank note have enough rubbing contact length.
As Fig. 2, front end in described darkroom 2 also is provided with into paper money sensor 6, do not have under the state of bank note in described darkroom 2, described single-chip microcomputer 4 receives the no bank note information of paper money sensor 6 and the control signal that resets to described hold down gag 7 outputs, and the back-moving spring 722 of electromagnet 72 makes bank note compact heap 71 reset (Fig. 3).In addition, when not dragged away from the darkroom in three seconds after bank note puts in place, single-chip microcomputer 4 also can be controlled compact heap 71 and reset.
As shown in Figure 4, the dead ahead that 2 bottoms are positioned at magnetic head 1 in the darkroom studs with magnetic stripe 8, and this magnetic stripe 8 tumbles in from housing 9 bottoms, do not expose upper surface, its effect is that weak magnetic banknote is magnetized, and promptly banknote has the place of magnetic, die down through magnetic after the long-term use, magnetic head 1 is difficult to detect magnetic number.When the close magnetic stripe 8 of banknote, originally banknote has the place of magnetic to be magnetized, and magnetic is replenished, and magnetic strengthens, and can increase the accuracy of detection.
The components and parts inventory list of control circuit of paper banknote identifier that the utlity model has magnetic false identifying function is as follows:
| Sequence | Title | Quantity | |
| 1 | Metalfilmresistor | 50 | |
| 2 | Electrochemical capacitor | 32 | |
| 3 | | 3 | |
| 4 | Triode | 4 | |
| 5 | The glass glaze adjustable potentiometer | 5 | |
| 6 | Straight cutting IC | 4 | |
| 7 | The three-terminal voltage-stabilizing | 2 | |
| 8 | | 1 | |
| 9 | | 1 | |
| 10 | | 1 | |
| 11 | Hummer | 1 | |
| 12 | The | 10 | |
| 13 | | 1 | |
| 14 | | 1 | |
| 15 | | 3 | |
| 16 | The PIN | 3 | |
| 17 | | 1 | |
| 18 | The IC socket | 4 |
Claims (9)
1, a kind of paper banknote identifier with magnetic false identifying function comprises: the magnetic head (1), signal processing circuit and the single-chip microcomputer (4) that are used to gather the note to be identified magnetic signal; It is characterized in that:
Described magnetic head (1) is installed in a wall in the darkroom (2) that is provided with inlet slot of paper note (21), is provided with a hold down gag (7) over against another wall of magnetic head (1), and the rear end of described darkroom (2) also is provided with level sensor (5);
Note to be identified is pushed into darkroom (2) from inlet slot of paper note (21), described bank note front end arrive rear end, darkroom (2) to level sensor (5), described single-chip microcomputer (4) receives the information that puts in place of the bank note that level sensor (5) responded to and controls described hold down gag (7) bank note is pressed on the magnetic head (1), the parallel darkroom (2) that detaches of bank note, described magnetic head (1) picks up the magnetic signal on the bank note and converts thereof into electric signal, and this electric signal is sent to the signal processing circuit processing and exports identification result by described single-chip microcomputer (4).
2. the paper banknote identifier with magnetic false identifying function according to claim 1 is characterized in that: described hold down gag (7) comprising: bank note compact heap (71), electromagnet (72) and solenoid driver circuit (73); Described bank note compact heap (71) is fixedlyed connected over against magnetic head (1) and with the movable core (721) of electromagnet (72), and described solenoid driver circuit (73) connects the signal output part of single-chip microcomputer (4).
3. the paper banknote identifier with magnetic false identifying function according to claim 1, it is characterized in that: described signal processing circuit comprises: magnetic signal Acquisition Circuit (31), signal amplification circuit (32) and the analog to digital conversion circuit (33) of the unidirectional connection of order, described magnetic signal Acquisition Circuit (31) is electrically connected with magnetic head (1), and the signal output part of analog-digital conversion circuit as described (33) connects single-chip microcomputer (4).
4, the paper banknote identifier with magnetic false identifying function according to claim 3 is characterized in that: described signal amplification circuit (32) comprises prime signal amplification circuit (321), secondary signal amplifying circuit (322) and the back level signal amplification circuit (323) of the unidirectional connection of order.
5, the paper banknote identifier with magnetic false identifying function according to claim 3 is characterized in that: analog-digital conversion circuit as described (33) is integrated in the single-chip microcomputer (4).
6, according to each described paper banknote identifier with magnetic false identifying function of claim 1 to 5, it is characterized in that: described single-chip microcomputer (4) is by hummer and pilot lamp output bank note identification result.
7, the paper banknote identifier with magnetic false identifying function according to claim 2 is characterized in that: described magnetic head (1) and bank note compact heap (71) are arranged on the left side in darkroom (2) or the position of right side and close inlet slot of paper note (21).
8, according to each described paper banknote identifier of claim 1 to 5 with magnetic false identifying function, it is characterized in that: the front end in described darkroom (2) also is provided with into paper money sensor (6), do not have under the state of bank note in described darkroom (2), described single-chip microcomputer (4) receives the no bank note information of paper money sensor (6) and the control signal that resets to described hold down gag (a 7) bank note compact heap of output (71).
9, according to each described paper banknote identifier with magnetic false identifying function of claim 1 to 5, it is characterized in that: the position that described darkroom (2) bottom is positioned at magnetic head (1) dead ahead is provided with a magnetic stripe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200659994U CN2874636Y (en) | 2005-10-17 | 2005-10-17 | Paper banknote identifier with magnetic false identifying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200659994U CN2874636Y (en) | 2005-10-17 | 2005-10-17 | Paper banknote identifier with magnetic false identifying function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874636Y true CN2874636Y (en) | 2007-02-28 |
Family
ID=37781232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200659994U Expired - Fee Related CN2874636Y (en) | 2005-10-17 | 2005-10-17 | Paper banknote identifier with magnetic false identifying function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874636Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544764A (en) * | 2013-09-12 | 2014-01-29 | 无锡乐尔科技有限公司 | Sensor for recognizing magnetic media |
| CN110706398A (en) * | 2018-06-22 | 2020-01-17 | 厦门临泰微科技有限公司 | Magnetic signal identification circuit module compatible with world currency (paper money) |
| CN111462390A (en) * | 2020-05-15 | 2020-07-28 | 上海古鳌电子科技股份有限公司 | Method and system for identifying counterfeit paper money |
| CN111554031A (en) * | 2020-05-09 | 2020-08-18 | 聚龙股份有限公司 | Paper money discriminating apparatus and system |
-
2005
- 2005-10-17 CN CNU2005200659994U patent/CN2874636Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544764A (en) * | 2013-09-12 | 2014-01-29 | 无锡乐尔科技有限公司 | Sensor for recognizing magnetic media |
| CN103544764B (en) * | 2013-09-12 | 2016-11-16 | 无锡乐尔科技有限公司 | A kind of sensor for identifying magnetic medium |
| CN110706398A (en) * | 2018-06-22 | 2020-01-17 | 厦门临泰微科技有限公司 | Magnetic signal identification circuit module compatible with world currency (paper money) |
| CN111554031A (en) * | 2020-05-09 | 2020-08-18 | 聚龙股份有限公司 | Paper money discriminating apparatus and system |
| CN111462390A (en) * | 2020-05-15 | 2020-07-28 | 上海古鳌电子科技股份有限公司 | Method and system for identifying counterfeit paper money |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |