CN204496600U - The false watermark recognition device of money - Google Patents
The false watermark recognition device of money Download PDFInfo
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- CN204496600U CN204496600U CN201520014969.4U CN201520014969U CN204496600U CN 204496600 U CN204496600 U CN 204496600U CN 201520014969 U CN201520014969 U CN 201520014969U CN 204496600 U CN204496600 U CN 204496600U
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- money
- watermark
- filter glass
- false
- ultraviolet light
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Abstract
The utility model relates to a kind of money true-false decision apparatus, is specifically related to the false watermark recognition device of a kind of money.The false watermark recognition device of a kind of money, comprise passage overhead gage, passage lower baffle plate, passage overhead gage and passage lower baffle plate are respectively provided with two watermark sensors; Described watermark sensor comprises casing, UV ultraviolet light, blue filter glass, clear glass, Yellow filter glass, cyan filter glass and photodiode; Clear glass is located at casing upper end, lamp chamber and reception cavity is provided with in casing, UV ultraviolet light is arranged in lamp chamber, blue filter glass is arranged on above UV ultraviolet light, photodiode is arranged in reception cavity, and Yellow filter glass and cyan filter glass to be arranged in reception cavity and to be positioned at above photoelectric diode.The false watermark recognition device of the utility model money by carrying out violet exposure to money watermark, then analyzes the power of the light reflected, can effective discriminating watermark true and false, thus identifies the true and false of money.
Description
Technical field
The utility model relates to a kind of money true-false decision apparatus, is specifically related to the false watermark recognition device of a kind of money.
Background technology
In the past, watermark on money is that people differentiate an important method of the money true and false with eyes, but some lawless persons of people manufacture counterfeit money by using a kind of specialty inks to describe watermark now, and these false watermarks are quite similar with true watermark under ordinary ray, people are difficult to a point evident.And existing money false distinguishing machine is all differentiate the money true and false by detecting magnetic ink or reading safety line information mostly, but magnetic ink is easier to be copied out by people, lawless person is by coating magnetic ink in counterfeit money relevant position, then the safety line extracting genuine notes embeds in counterfeit money, is easy to the identification that just can escape false distinguishing machine like this.
Inventor finds that the false watermark in counterfeit money can become gloomy under the irradiation of ultraviolet light, this is because the ink describing watermark can absorb most of ultraviolet light, so the light emitted can be less, therefore can seem darker, and true watermark is not described by ink, the ability absorbing ultraviolet light is very weak, therefore there will not be dimmed situation.So it is a kind of by the true and false false proof device identifying the money true and false of discriminating watermark to inventor contemplate manufacture.
Utility model content
The purpose of this utility model is the deficiency overcoming the existence of above-mentioned prior art, and provides a kind of money vacation watermark recognition device being differentiated the money true and false by watermark.
The utility model object is achieved in that the false watermark recognition device of a kind of money, and comprise passage overhead gage, passage lower baffle plate, passage overhead gage and passage lower baffle plate are respectively provided with two watermark sensors; Money have at least a watermark sensor can identify watermark after can be made like this to enter paper money passage.
Described watermark sensor comprises casing, UV ultraviolet light, blue filter glass, clear glass, Yellow filter glass, cyan filter glass and photodiode;
Clear glass is located at casing upper end, lamp chamber and reception cavity is provided with in casing, UV ultraviolet light is arranged in lamp chamber, blue filter glass is arranged on above UV ultraviolet light, photodiode is arranged in reception cavity, and Yellow filter glass and cyan filter glass to be arranged in reception cavity and to be positioned at above photoelectric diode.
Technique scheme also can be made to the following further improve.
As scheme more specifically, the wavelength coverage of described UV ultraviolet light is 360nm to 385nm.
As scheme more specifically, described UV ultraviolet light is astigmatism type UV ultraviolet light.
As scheme more specifically, be provided with lighttight dividing plate between described lamp chamber and reception cavity, ultraviolet light and photodiode can separate by this dividing plate, make photodiode can only receive the light arrived by reflected light path.
As scheme more specifically, described blue filter glass can only be the light of 330nm to 480nm by wavelength, it is purer that blue filter glass can allow ultraviolet light arrive the light of watermark location.
As scheme more specifically, described Yellow filter glass can only be the light of more than 400nm by wavelength.
As scheme more specifically, described cyan filter glass can only be the light of 220nm to 710nm by wavelength.
As scheme more specifically, the sensitive volume of described photodiode is 300nm to 1100nm.
The utility model is work like this: when money entered paper money passage, ultraviolet light is by being radiated at the position of money watermark after blue filter glass, purple light impinges upon in watermark, then reflect again to reception cavity, can photodiode be arrived by the light of 400nm to 710nm after Yellow filter glass and cyan filter glass, be received by photodiode; Light signal is converted to the electric signal of strong and weak change by photodiode, and amplify after aluminium foil through amplifier and enter Chip Microcomputer A/D scanning collection, scanning obtains data by going out the true and false of watermark after algorithm process with regard to identifiable design, thus differentiates the money true and false.
The beneficial effects of the utility model are as follows: the false watermark recognition device of the utility model money by carrying out violet exposure to money watermark, then analyzes the power of the light reflected, can effective discriminating watermark true and false, thus identify the true and false of money.
Accompanying drawing explanation
Fig. 1 is the utility model mounting structure front elevation.
Fig. 2 is the utility model mounting structure vertical view.
Fig. 3 is the utility model mounting structure left view.
Fig. 4 is watermark sensor construction schematic diagram.
Fig. 5 is watermark sensor construction schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Composition graphs 1 to Fig. 5 is described in detail to embodiment 1: the false watermark recognition device of a kind of money, and comprise passage overhead gage 1, passage lower baffle plate 2, passage overhead gage 1 and passage lower baffle plate 2 are respectively provided with two watermark sensors 3;
Described watermark sensor comprises casing 31, UV ultraviolet light 32, blue filter glass 33, clear glass 34, Yellow filter glass 35, cyan filter glass 36 and photodiode 37;
Clear glass 34 is located at casing 31 upper end, lamp chamber 4 and reception cavity 5 is provided with in casing 31, UV ultraviolet light 32 is arranged in lamp chamber 4, blue filter glass 33 is arranged on above UV ultraviolet light 32, photodiode 37 is arranged in reception cavity 5, Yellow filter glass 35 and cyan filter glass 36 are arranged in reception cavity 5, and cyan filter glass 36 is positioned at above photodiode 37, and Yellow filter glass 35 is positioned at above cyan filter glass 36.
The wavelength coverage of described UV ultraviolet light 32 is 360nm to 385nm.
Described UV ultraviolet light 32 is astigmatism type UV ultraviolet light.
Described blue filter glass 33 can only be the light of 330nm to 480nm by wavelength.
Described Yellow filter glass 35 can only be the light of more than 400nm by wavelength.
Described cyan filter glass 36 can only be the light of 220nm to 710nm by wavelength.
The sensitive volume of described photodiode 37 is 300nm to 1100nm.
Lighttight dividing plate 38 is provided with between described lamp chamber 4 and reception cavity 5.
Claims (4)
1. the false watermark recognition device of money, it is characterized in that: comprise passage overhead gage, passage lower baffle plate, passage overhead gage and passage lower baffle plate are respectively provided with two watermark sensors;
Described watermark sensor comprises casing, UV ultraviolet light, blue filter glass, clear glass, Yellow filter glass, cyan filter glass and photodiode;
Clear glass is located at casing upper end, lamp chamber and reception cavity is provided with in casing, UV ultraviolet light is arranged in lamp chamber, blue filter glass is arranged on above UV ultraviolet light, photodiode is arranged in reception cavity, and Yellow filter glass and cyan filter glass to be arranged in reception cavity and to be positioned at above photodiode.
2. the false watermark recognition device of money according to claim 1, is characterized in that: the wavelength coverage of described UV ultraviolet light is 360nm to 385nm.
3. the false watermark recognition device of money according to claim 1, is characterized in that: described UV ultraviolet light is astigmatism type UV ultraviolet light.
4. the false watermark recognition device of money according to claim 1, is characterized in that: be provided with lighttight dividing plate between described lamp chamber and reception cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014969.4U CN204496600U (en) | 2015-01-10 | 2015-01-10 | The false watermark recognition device of money |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014969.4U CN204496600U (en) | 2015-01-10 | 2015-01-10 | The false watermark recognition device of money |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204496600U true CN204496600U (en) | 2015-07-22 |
Family
ID=53575896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520014969.4U Active CN204496600U (en) | 2015-01-10 | 2015-01-10 | The false watermark recognition device of money |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204496600U (en) |
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2015
- 2015-01-10 CN CN201520014969.4U patent/CN204496600U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |