CN2169880Y - Automatic alarm for testing counterfeit bank note - Google Patents
Automatic alarm for testing counterfeit bank note Download PDFInfo
- Publication number
- CN2169880Y CN2169880Y CN93219369U CN93219369U CN2169880Y CN 2169880 Y CN2169880 Y CN 2169880Y CN 93219369 U CN93219369 U CN 93219369U CN 93219369 U CN93219369 U CN 93219369U CN 2169880 Y CN2169880 Y CN 2169880Y
- Authority
- CN
- China
- Prior art keywords
- alarm
- utility
- model
- bank notes
- ultraviolet light
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
The utility model relates to an automatic alarm for identifying counterfeit bank notes, which comprises an ultraviolet light source part, a photoelectric conversion part, a magnifying part, an identifying part, an alarm part, a power supply part, etc. The automatic alarm for identifying counterfeit bank notes directly changes ultraviolet light into visible light by an ultraviolet photoresistor or optical glass according to the optical characteristics of bank notes, and then photoelectric conversion is carried out by using a common photoresistor; the utility model can send an alarm after amplification and identification (on the occasions of counterfeit bank notes). The utility model has the advantages of simple structure, reliable performance, high correctness, convenient use, small size, and low cost.
Description
The utility model relates to a kind of counterfeit money and differentiates the automatic alarming instrument device.
The true and false of identification note has many kinds of methods.Such as, detect the magnetic method of the use of ink and water, fluorescent irradiation, coin paper characteristic method of identification, uv irradiation method etc.Usually comparatively effective method is the surface of ultra violet lamp bank note, from the different qualities (genuine notes absorb most of ultraviolet light, and counterfeit money reflects most of ultraviolet light) of its reflection, differentiates its true and false by the people.Be not always the case such as patent 91204382.5,90205222.5 etc.But their shortcoming is that its accuracy is fully according to people's sensation and experience.Just emerging for another example a kind of currency examine pen, this pen are to make with the redox principle of chemicals.The paper pulp cotton height of printing of bank note, toughness is strong, and the person of containing the forge money do less than special composition.The ink that this usefulness is special, drawing is black on common paper, drawing is tawny on true bank note.Watch the true and false that color is distinguished bank note by human eye, under the older situation of bank note, the accuracy rate that this pen is differentiated is not high.
For this reason, the purpose of this utility model is to overcome above-mentioned weak point, adopts a kind of detection and discriminator circuit, can not only discern the true and false of bank note automatically, in time report to the police, and the accuracy rate height, price is comparatively cheap, and is economical and practical.
The utility model partly is made up of ultraviolet source, opto-electronic conversion, amplification, discriminating, warning etc., when the ultraviolet source irradiation note surface, with the UV photosensitive resistance of special wavelength; Or ultraviolet light is converted to visible light with special optical glass, adopt common photoresistance again; Directly receive the ultraviolet light of the varying strength of true and false note surface reflection, and ultraviolet light intensity is converted to corresponding electric signal, realize opto-electronic conversion.Through after amplifying, differentiate by discriminator circuit relatively again, make that instrument sends chimes of doom under the situation of counterfeit money, genuine note in this way, instrument is not just sounded.
Below in conjunction with accompanying drawing the utility model is elaborated.
Figure one is a structure drawing of device of the present utility model.
Figure two is that circuit of the present utility model connects block diagram.
Figure three is schematic diagrams of the present utility model.
A is the first half among the figure one, and B is a Lower Half.1 is the ultraviolet light source circuit board, and 2 is alarm, and T is a transformer, and 4 is the currency examine plate, and 5 is power switch, and 6 is the circuitry plate, and 7 is photoelectric commutator, and L is a uviol lamp.
Figure two medium ultraviolet light source D are made up of ultraviolet source circuit board 1 and uviol lamp L, photoelectric commutator 7 adds that by UV photosensitive resistance or by special optical glass common photosensitive resistor group becomes, and an end of direct and amplifier 9 joins the parallel placement with ultraviolet source of photoresistance and equidirectional towards the currency surface.The amplifying circuit other end joins with the positive input terminal that compares discriminator circuit 10, and relatively the negative input end of discriminator circuit connects a potentiometer, output terminal device 2 taking alarm.
Principle of work of the present utility model is shown in figure three.
It is luminous that transformer T makes that uviol lamp L lights, and is radiated on the note surface R
5Be UV photosensitive resistance or common photoresistance, receive the ultraviolet light of currency surface reflection, and the ultraviolet light of varying strength is converted to corresponding electric signal, integrated circuit U
2With resistance R
7Capacitor C
1Constitute small signal amplifier, with R
5The electric signal (light intensity signal) that conversion comes is delivered to integrated circuit U
1Compare discriminating, potentiometer W
1Play the sensitivity adjusting effect, span is 5～30K, by W
1The threshold values and the U of regulation
1The positive input terminal signal is compared, and under the counterfeit money situation, the reflected light of counterfeit money is powerful, the 1. some current potential height among the figure three, integrated circuit U
2Output terminal current potential height, i.e. U
1The positive input terminal current potential raise, be higher than W
1The threshold values of regulation, U
1Be output as high level, triode T
1Conducting, make alarm 2(or for loudspeaker) send chimes of doom; Under the situation of genuine notes, U
1Output terminal be low level, triode T
1End, instrument can not send alarm sound.
The utility model is simple in structure, dependable performance, accuracy rate height, and is easy to use, volume is little, and cost is low, can be used for the discriminating of currency, securities, credit card, the trade mark true and false.
Close, 6 is the circuitry plate, and 7 is photoelectric commutator, and L is a uviol lamp.
Figure two medium ultraviolet light source D are made up of ultraviolet source circuit board 1 and uviol lamp L, photoelectric commutator 7 adds that by UV photosensitive resistance or by special optical glass common photosensitive resistor group becomes, and an end of direct and amplifier 9 joins the parallel placement with ultraviolet source of photoresistance and equidirectional towards the currency surface.The amplifying circuit other end joins with the positive input terminal that compares discriminator circuit line 10, and relatively the negative input end of discriminator circuit connects a potentiometer, output terminal device 2 taking alarm.
Principle of work of the present utility model is shown in figure three.
It is luminous that transformer T makes that uviol lamp L lights, and is radiated on the note surface R
5Be UV photosensitive resistance or common photoresistance, receive the ultraviolet light of currency surface reflection, and the ultraviolet light of varying strength is converted to corresponding electric signal, integrated circuit U
2With resistance R
7Capacitor C
1Constitute small signal amplifier, with R
5The electric signal (light intensity signal) that conversion comes is delivered to integrated circuit U
1Compare discriminating, potentiometer W
1Play the sensitivity adjusting effect, span be 5～30 by W
1The threshold values and the U of regulation
1The positive input terminal signal is compared, and under the counterfeit money situation, the reflected light of counterfeit money is powerful, 1. 2. puts current potential height, integrated circuit U among the figure three
2Output terminal current potential height, i.e. U
1The positive input terminal current potential raise, be higher than W
1The threshold values of regulation, U
1Be output as high level, triode T
1Conducting makes alarm 2 or send chimes of doom for loudspeaker; Under the situation of genuine notes, U
1Output terminal be low level, triode T
1End, instrument can not send alarm sound.
The utility model is simple in structure, dependable performance, accuracy rate height, and is easy to use, volume is little, and cost is low, can be used for the discriminating of currency, securities, credit card, the trade mark true and false.
Claims (2)
1, a kind of counterfeit money is differentiated the automatic alarming instrument device, comprise ultraviolet source, photoresistance, comparison discriminator circuit, alarm, it is characterized in that: photoelectric commutator adds that by UV photosensitive resistance or by special optical glass common photosensitive resistor group becomes, and join with an end of amplifying circuit, the other end of amplifier joins with the positive input terminal that compares discriminator circuit 10, relatively the negative input end of discriminator circuit connects a potentiometer, the triode T1 of output termination control alarm 2.
2, alarm as claimed in claim 1 is characterized in that: the parallel placement with ultraviolet source of photoresistance and equidirectional towards the currency surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93219369U CN2169880Y (en) | 1993-07-24 | 1993-07-24 | Automatic alarm for testing counterfeit bank note |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93219369U CN2169880Y (en) | 1993-07-24 | 1993-07-24 | Automatic alarm for testing counterfeit bank note |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2169880Y true CN2169880Y (en) | 1994-06-22 |
Family
ID=33798774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93219369U Expired - Fee Related CN2169880Y (en) | 1993-07-24 | 1993-07-24 | Automatic alarm for testing counterfeit bank note |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2169880Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106570980A (en) * | 2015-10-10 | 2017-04-19 | 深圳怡化电脑股份有限公司 | Paper currency authentic identification method and system |
-
1993
- 1993-07-24 CN CN93219369U patent/CN2169880Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106570980A (en) * | 2015-10-10 | 2017-04-19 | 深圳怡化电脑股份有限公司 | Paper currency authentic identification method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101763680A (en) | Currency detector using laser light source | |
| CN104574632A (en) | Counterfeit money recognition system and multifunctional smart band with same | |
| CN2169880Y (en) | Automatic alarm for testing counterfeit bank note | |
| CN104200560B (en) | A kind of Multiple Currencies currency examine method and device based on Bluetooth communication | |
| CN201927099U (en) | Anti-counterfeit device for paper money | |
| CN201259699Y (en) | Portable voice currency examining machine | |
| CN201111203Y (en) | Paper currency watermark identifying apparatus with photo-electric sensor | |
| CN2639961Y (en) | New type moving terminal paper money checking machine | |
| CN101968902B (en) | Infrared laser currency detection system | |
| CN2804967Y (en) | Modular set for bank-notes identification | |
| CN2253847Y (en) | Multi-functiond esk instrument for indentifying paper currency genuineness | |
| CN204288278U (en) | A kind of currency counting and detecting machine of novel false-identifying device | |
| CN1170915A (en) | Desk type multifunctional bank note tester | |
| CN2440230Y (en) | Identification-card checking instrument | |
| CN2726031Y (en) | Special money tester for cash register table | |
| CN203204702U (en) | Small banknote detector | |
| CN2146033Y (en) | Paper money examing alarm | |
| CN2159041Y (en) | Penlike false paper-money identifying device | |
| CN2479592Y (en) | Ultraviolet paper money testing device | |
| CN2230458Y (en) | Fake-detecting counting machine for bank-note | |
| CN2164073Y (en) | Multi-functional efficient paper currency tester | |
| CN2163404Y (en) | Forged money recognizer | |
| CN2130274Y (en) | Alarm for identifying forged paper money | |
| CN2736866Y (en) | Portable magnetic safety line identifier | |
| CN2116249U (en) | Automatic counterfeit note recognizer |
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 |