CN202196463U

CN202196463U - Sympathetic ink recognition system and paper money fake recognition device

Info

Publication number: CN202196463U
Application number: CN2011203470994U
Authority: CN
Inventors: 谭伟基
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-04-18
Anticipated expiration: 2021-09-16

Abstract

The utility model discloses a paper money fake recognition device with a sympathetic ink recognition function, which comprises a darkroom, a light source, a light source control circuit, a sensor, a signal processing circuit and a single chip microcomputer. The light source is more than one monochromatic sources with different incident angles, the sensor is more than one photoelectric sensors with different receiving angles, the more than one photoelectric sensors are arranged on the appropriate positions in the darkroom, when the light source control circuit controls the light source to send out monochromatic lights which irradiates on the sympathetic ink position on paper money in a paper money sending channel, light reflex or light transmission occurs, reflected light or transmission light is received by the sensor and converted into telecom signals, and the signal processing circuit processes the telecom signals. Recognition of sympathetic ink of the paper money can be achieved by adding the darkroom and using common photoelectric sensors and color sensors, sensors with imaging and columnar optical lens focus which are expensive and needed by recognition of existing sympathetic ink can be avoided, so that the paper money fake recognition device can obviously lower manufacture cost of paper money fake recognition device with the sympathetic ink recognition function.

Description

Color shifting ink recognition device and bank note false-identifying device

Technical field

The utility model relates to a kind of financial machine and tool, relates in particular to a kind of bank note false-identifying device with color changed ink identification function.The utility model is suitable for being engaged in the professional domestic and international bank of cash bank settlement and non-bank uses.

Background technology

At present; The anti-counterfeiting characteristic that world's banknote is taked be magnetic printing ink, safety line, infrared printing ink, fluorescent ink, watermark, intaglio plate printing, color shifting ink etc., wherein anti-counterfeiting characteristics such as magnetic ink, safety line, infrared printing ink, fluorescent ink, watermark can be through its true and false of machine-readable identification.At present on point, the cash inspecting machine there be the present false distinguishing mode that adopts: false distinguishing modes such as magnetic, safety line, infrared, fluorescence, watermark.Wherein magnetic false distinguishing principle of work is to adopt Magnetic Sensor to collect and record the magnetic signal at magnetic position on the genuine notes, and converts thereof into electric signal, after amplification and comparison process, distinguishes; Safety line false distinguishing principle of work is to adopt the safety line sensor to collect and record the material and the enciphered message of safety line on the genuine notes, and converts thereof into electric signal, after amplification and comparison process, distinguishes; Infrared false distinguishing principle of work is to have adopted infrared sensor to collect and record 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 converts thereof into electric signal, after amplification and comparison process, distinguishes; It is stronger that fluorescence false distinguishing principle of work is that the purple light that adopts violet source to send shines on the counterfeit money fluorescence reflection; Fluorescence reflects more weak this physical characteristics on the genuine notes and shine; Collect and record the reflected fluorescent light of counterfeit money, and convert thereof into electric signal, after amplification and comparison process, distinguish.

The part banknote has adopted a very important anti-counterfeiting technology in the world in recent years, and promptly color shifting ink is false proof.Up to the present, people are still through naked eyes and recognize its true and false, still have difficulties through machine-readable its true and false of recognizing.Application number be 201110002545.2 and application number be the recognition device that 201110002631.3 Chinese invention patent applications disclose a kind of color shifting ink; This device comprises background light source, first and second photelectric receivers and first and second imaging lens; First imaging len and second imaging len receive the light to be detected reflection of bank note from two different angles respectively, and it is imaged onto first photoelectricity respectively connects and second photelectric receiver.The recognition device of existing color shifting ink needs the photelectric receiver of more expensive imaging len and band imaging, owing to need discern processing to image, its supporting hardware resource is also uneconomical.

The utility model content

The technical matters that the utility model solves is the defective that exists to prior art, and a kind of bank note false-identifying device that has color changed ink identification function cheaply is provided.

For achieving the above object, the bank note false-identifying device with color changed ink identification function of the utility model comprises:

Gather and handle the false distinguishing modular assembly of bill detection zone physical message to be identified, this false distinguishing modular assembly comprises: darkroom, light source, control circuit for light source, sensor, signal processing circuit and single-chip microcomputer; The signal input and output side of this control circuit for light source connects said single-chip microcomputer and light source respectively, and the signal input and output side of this signal processing circuit connects said sensor and single-chip microcomputer respectively;

Said light source is the more than one monochromatic source with different incidence angles degree; Said sensor is the more than one photoelectric sensor with different receiving angles; Said more than one photoelectric sensor is installed in appropriate location in the said darkroom, and said more than one monochromatic source is placed in the said darkroom or the money transmitting channel marginal position relative with said darkroom;

When sending, said control circuit for light source control light source produces light reflection or transmittance when monochromatic light shines the color shifting ink position of bank note on the money transmitting channel; This reflected light or transmitted light receive and are converted into electric signal by said sensor; Said signal processing circuit is handled this electric signal, and said single-chip microcomputer receives this result and exports the recognition result of bank note color shifting ink.

Said control circuit for light source is controlled the monochromatic light that said light source sends and is comprised one or more the monochromatic combinations in red light, green light, blue coloured light, the white monochromatic light.

Said control circuit for light source is controlled said light source and is sent red monochromatic light, green monochromatic light and Lan Se monochromatic light in turn.

The crucial part of the utility model is selection and the selection of monochromatic source and sensor configuration mode of quantity of quantity and the sensor of monochromatic source.The utility model provides following configuration mode.

First kind of configuration mode; Said light source and the transducer arrangements diverse location in said darkroom; Said light source comprises first led light source; The incident angle LA1 of the relative color shifting ink horizontal level of this first led light source is less than 30 degree; Said sensor comprises first photoelectric sensor and second photoelectric sensor, and the first receiving angle LB1 of the relative color shifting ink horizontal level of this first photoelectric sensor is more than or equal to 30 degree angles and arbitrarily angled less than 150 degree angles, and the second receiving angle LB2 of the relative color shifting ink horizontal level of this second photoelectric sensor is more than or equal to 150 degree angles and arbitrarily angled smaller or equal to 180 degree angles;

The illumination of said first led light source produces the light reflection after being mapped to bank note color shifting ink position, and the component that this reflected light is projected on the said first receiving angle LB1 and the second receiving angle LB2 is received by said first photoelectric sensor and second photoelectric sensor respectively.

Second kind of configuration mode; Said light source and the transducer arrangements diverse location in said darkroom; Said light source comprises second led light source and the 3rd led light source; The second incident angle LA2 of the relative color shifting ink horizontal level of this second led light source is less than 30 degree, and the 3rd incident angle LA3 of the relative color shifting ink horizontal level of the 3rd led light source is more than or equal to 30 degree and arbitrarily angled smaller or equal to 150 degree angles; Said sensor comprises the 3rd photoelectric sensor, and the 3rd receiving angle LB3 of the relative color shifting ink horizontal level of the 3rd photoelectric sensor is more than or equal to 150 degree angles and arbitrarily angled smaller or equal to 180 degree angles;

The illumination of said second led light source and the 3rd led light source all produces the light reflection after being mapped to bank note color shifting ink position, and the component that the reflected light timesharing of two different directions light sources is projected on said the 3rd receiving angle LB3 is received by said the 3rd photoelectric sensor (33).

The third configuration mode, said light source are the 4th led light source that is positioned at the money transmitting channel lower edge, and said sensor comprises the 4th photoelectric sensor, the 4th photoelectric sensor be positioned at said darkroom and with the relative position of said the 4th led light source;

The entering darkroom was received by said the 4th photoelectric sensor after the light that said the 4th led light source sends penetrated bank note color shifting ink position from bottom to top.

The 4th kind of configuration mode, said light source is the 5th led light source that is positioned at said darkroom, and said sensor comprises the 5th photoelectric sensor, and the 5th photoelectric sensor is positioned at money transmitting channel top edge and the position relative with the 5th led light source in said darkroom;

The entering darkroom was received by said the 5th photoelectric sensor after the light that said the 5th led light source sends penetrated bank note color shifting ink position from the top down.

Preferred version as first kind of configuration mode; The incident angle LA1 of the relative color shifting ink horizontal level of said first led light source is 30 degree; The second receiving angle LB2 of the relative color shifting ink horizontal level of said second photoelectric sensor is 90 degree, and the first receiving angle LB1 of the relative color shifting ink horizontal level of said first photoelectric sensor is 150 degree.

As the preferred version of second kind of configuration mode, the second incident angle LA2 of the relative color shifting ink horizontal level of said second led light source is 30 degree, and the 3rd incident angle LA3 of the relative color shifting ink horizontal level of said the 3rd led light source is 90 degree; The 3rd receiving angle LB3 of the relative color shifting ink horizontal level of said the 3rd photoelectric sensor is 150 degree.

Compared with prior art; The color changed ink identification function bank note false-identifying device that has of the utility model has following useful technique effect: through increasing a darkroom and using cheap normal optical electric transducer or color sensor just can realize the identification of bank note color shifting ink; The sensor and the column optical lens that have omitted the needed relatively more expensive band imaging of existing color shifting ink identification focus on; Therefore the utility model uses lower cost to realize the color shifting ink of machine-readable detection bill, has improved the distinguishing ability to counterfeit money.

Description of drawings

Fig. 1 is the functional-block diagram of color shifting ink recognition device;

Fig. 2 is the functional-block diagram of color shifting ink recognition device embodiment one and embodiment three;

Fig. 3 is the functional-block diagram of color shifting ink recognition device embodiment two and embodiment four;

Fig. 4 is the functional-block diagram of color shifting ink recognition device embodiment five and embodiment six;

Fig. 5 is the optical principle synoptic diagram of color shifting ink recognition device embodiment one and embodiment three;

Fig. 6 is the optical principle synoptic diagram of color shifting ink recognition device embodiment two and embodiment four;

Fig. 7 is the optical principle synoptic diagram of color shifting ink recognition device embodiment five;

Fig. 8 is the optical principle synoptic diagram of color shifting ink recognition device embodiment six;

Fig. 9 is the electrical schematic diagram of color shifting ink recognition device embodiment one;

Figure 10 is the electrical schematic diagram of color shifting ink recognition device embodiment two;

Figure 11 is the electrical schematic diagram of color shifting ink recognition device embodiment three;

Figure 12 is the electrical schematic diagram of color shifting ink recognition device embodiment four;

Figure 13 is the electrical schematic diagram of color shifting ink recognition device embodiment five;

Figure 14 is the electrical schematic diagram of color shifting ink recognition device embodiment six.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.

The functional-block diagram of the color shifting ink recognition device of the utility model is as shown in Figure 1; Comprise the false distinguishing modular assembly of gathering and handling bill detection zone physical message to be identified, this false distinguishing modular assembly comprises: darkroom 1, light source 2, control circuit for light source 4, sensor 3, signal processing circuit 5 and single-chip microcomputer 6; The signal input and output side of this control circuit for light source 4 connects said single-chip microcomputer 6 and light source 2 respectively, and the signal input and output side of this signal processing circuit 5 connects said sensor 3 and single-chip microcomputer 6 respectively.

In order to improve the recognition capability of color shifting ink; The light source 2 of the utility model is for having the more than one monochromatic source of different incidence angles degree; 3 of sensors are the more than one photoelectric sensor with different receiving angles; Said more than one photoelectric sensor is installed in appropriate location in the said darkroom 1, and more than one monochromatic source can be placed in the said darkroom 1 or be placed in the money transmitting channel marginal position relative with darkroom 1, and said signal processing circuit 4 adopts differential amplifier circuits.In order further to improve the reliability of color shifting ink identification; Must guarantee that crossing between bill 11 and the darkroom on the paper money plate of money transmitting channel 12 has suitable height, the light positive that light source 2 is sent shines the watermark part of bill 11 well and can reflect or be penetrated into the sensor 3 in the darkroom.

When sending, said control circuit for light source 4 control light sources 2 produce light reflection or transmittance when monochromatic light shines the color shifting ink position of bank note 11 on the money transmitting channel 12; This reflected light or transmitted light receive and are converted into electric signal by said sensor 3; 5 pairs of these electric signal of said signal processing circuit are handled, and said single-chip microcomputer 6 receives this result and exports the recognition result of bank note color shifting ink.

In order to reduce the manufacturing cost of color shifting ink recognition device; The monochromatic light that the said light source 2 of control circuit for light source 4 controls of the utility model sends; Like red light, green light, blue coloured light, white light, light source 2 can send one or more the monochromatic combinations in above-mentioned four kinds of monochromatic light.Preferably, the said light source 2 of said control circuit for light source 4 controls sends red monochromatic light, green monochromatic light and Lan Se monochromatic light in turn.According to the above-mentioned mentality of designing of the utility model, the utility model provides five kinds of embodiments:

Embodiment one: like Fig. 2 and as shown in Figure 5; Said light source 2 is arranged in the diverse location in the said darkroom 1 with sensor 3; Said light source 2 comprises first led light source 21; The incident angle LA1 of these first led light source, 21 relative color shifting ink horizontal levels is less than 30 degree; Said sensor 3 comprises first photoelectric sensor 31 and second photoelectric sensor 32; The first receiving angle LB1 of these first photoelectric sensor, 31 relative color shifting ink horizontal levels is more than or equal to 30 degree angles and arbitrarily angled less than 150 degree angles, and the first receiving angle LB2 of these second photoelectric sensor, 32 relative color shifting ink horizontal levels is more than or equal to 150 degree angles and arbitrarily angled smaller or equal to 180 degree angles.

Preferably; The incident angle LA1 of said first led light source, 21 relative color shifting ink horizontal levels is 30 degree; The second receiving angle LB1 of said first photoelectric sensor, 31 relative color shifting ink horizontal levels is 90 degree, and the first receiving angle LB2 of said second photoelectric sensor, 32 relative color shifting ink horizontal levels is 150 degree.

The illumination of said first led light source 21 is mapped to and produces the light reflection behind the bank note color shifting ink position, and this reflected light is projected in component on the said first receiving angle LB1 and the second receiving angle LB2 respectively by said first

photoelectric sensor

31 and 32 receptions of second photoelectric sensor.

The electrical schematic diagram of present embodiment one is as shown in Figure 9.LED1 is the excitaton source of light source; Single-chip microcomputer timesharing control is by led driver U1; Resistance R 1～R5, adjustable resistor VR1～VR6, capacitor C 1; It is luminous as excitaton source that LEDR_EN, LEDG_EN, the LEDB_EN interface level of triode Q1～Q6 composition control circuit for light source takes turns light source, control V_ REF, H_ REF interface level and the luminous intensity of regulating adjustable resistor VR1～VR6 excitaton source; When V_ REF is a high level, when H_ REF was low level, the light that LED launches was as catoptrical excitaton source; This moment when LEDR_EN be high level all the other when the low level, LED only launches ruddiness, the suitable intensity of illumination of strong and weak scalable VR2 arrival of ruddiness; The red light irradiation that is sent is during to the color shifting ink part of bill; Light is reflected on the sensor SI1 and converts electric signal into, and this electric signal is through the operational amplifier U2 of signal processing circuit, resistance R 7～R12, R19; Capacitor C 2, C4, C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified; When LEDG_EN is that all the other LED when the low level of high level only launch green glow; The strong and weak scalable VR4 of green glow arrives suitable intensity of illumination, and when the green glow that is sent shone the color shifting ink part of bill, light was reflected to sensor SI1 and goes up and convert into electric signal; This electric signal is through the operational amplifier U2 of signal processing circuit; Resistance R 7～R12, R19, capacitor C 2, C4, C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified; When LEDB_EN is that all the other LED when the low level of high level only launch blue light; The strong and weak scalable VR6 of blue light arrives suitable intensity of illumination, and the blue light illumination that is sent is during to the color shifting ink part of bill, and light is reflected on the sensor SI1 and converts electric signal into; This electric signal is through the operational amplifier U2 of signal processing circuit; Resistance R 7～R12, R19, capacitor C 2, C4, C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified; Just having obtained color shifting ink to this is the color data of the RGB light under the 150 degree reflected light at the first receiving angle LB2, and data just can be discerned the reflection colour of color shifting ink through the single-chip microcomputer calculation process.Just can discern most false color shifting inks this moment; If discrimination is not enough, can increase the color data of the RGB light of color shifting ink under the second receiving angle LB1 reflected light, single-chip microcomputer continues timesharing control control circuit for light source; When V_ REF is a low level; The light that LED launched when H_ REF was high level is as catoptrical excitaton source, this moment when LEDR_EN be high level all the other during for low level LED only launch ruddiness, the suitable intensity of illumination of strong and weak scalable VR1 arrival of ruddiness; The red light irradiation that is sent is during to the color shifting ink part of bill; Light is reflected on the sensor SI2 and converts electric signal into, and this electric signal is through the operational amplifier U3 of signal processing circuit, resistance R 13～R18, R20; Capacitor C 3, C6, C7, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified; When LEDG_EN is that all the other LED when the low level of high level only launch green glow; The strong and weak scalable VR3 of green glow arrives suitable intensity of illumination, and when the green glow that is sent shone the color shifting ink part of bill, light was reflected to sensor SI2 and goes up and convert into electric signal; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 3～R18, R20, capacitor C 3, C6, C7, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified; When LEDB_EN is that all the other LED when the low level of high level only launch blue light; The strong and weak scalable VR5 of blue light arrives suitable intensity of illumination, and the blue light illumination that is sent is during to the color shifting ink part of bill, and light is reflected on the sensor SI2 and converts electric signal into; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 3～R18, R20, capacitor C 3, C6, C7, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified; The color data of the RGB light of the color shifting ink that collects under the second receiving angle LB1 reflected light just can be discerned the reflection colour of color shifting ink through the single-chip microcomputer calculation process, is that the data of 150 degree reflection colours together just can the accurate recognition color shifting ink through the single-chip microcomputer calculation process with the first receiving angle LB2 again.

Embodiment two: like Fig. 3 and shown in Figure 6; Said light source 2 is arranged in the diverse location in the said darkroom 1 with sensor 3; Said light source 2 comprises second led light source 22 and the 3rd led light source 23; The second incident angle LA2 of these second led light source, 22 relative color shifting ink horizontal levels is less than 30 degree, and the 3rd incident angle LA3 of the 3rd led light source 23 relative color shifting ink horizontal levels spends more than or equal to 30 and arbitrarily angled smaller or equal to 150 degree angles; The 3rd receiving angle LB3 that said sensor 3 comprises the 3rd photoelectric sensor 33, the three photoelectric sensors 33 relative color shifting ink horizontal levels is for for more than or equal to 150 degree angles and arbitrarily angled smaller or equal to 180 degree angles.

Preferably, the second incident angle LA2 of said second led light source, 22 relative color shifting ink horizontal levels is 30 degree, and the 3rd incident angle LA3 of said the 3rd led light source 23 relative color shifting ink horizontal levels is 90 degree; The 3rd receiving angle LB3 of said the 3rd photoelectric sensor 33 relative color shifting ink horizontal levels is 150 degree.

The illumination of said second led light source 22 and the 3rd led light source 23 is mapped to and all produces the light reflection behind the bank note color shifting ink position, and the reflected light of two different directions light sources is projected in component on said the 3rd receiving angle LB3 by 33 receptions of said the 3rd photoelectric sensor.

The electrical schematic diagram of present embodiment two is shown in figure 10.LED1 is the excitaton source of the second incident angle LA2 reflection source; Single-chip microcomputer timesharing control is by led driver U1; Resistance R 1～R6; Adjustable resistor VR1～VR3, capacitor C 1, it is luminous as excitaton source that LED1R_EN, LED1G_EN, the LED1B_EN interface level of composition control circuit for light source takes turns light source; When LED1R_EN is that all the other LED1 when the low level of high level only launch ruddiness; This moment, the strong and weak scalable VR1 of ruddiness arrived suitable intensity of illumination, and the red light irradiation that is sent is during to the color shifting ink part of bill, and light is reflected on the sensor SI1 and converts electric signal into; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 13～R19, capacitor C 3～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified; When LED1G_EN is that all the other LED1 when the low level of high level only launch green glow; This moment, the strong and weak scalable VR2 of green glow arrived suitable intensity of illumination, and when the green glow that is sent shone the color shifting ink part of bill equally, light was reflected to sensor SI1 and goes up and convert into electric signal; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 13～R19, capacitor C 3～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified; When LED1B_EN is that all the other LED1 when the low level of high level only launch blue light; This moment, the strong and weak scalable VR2 of blue light arrived suitable intensity of illumination, and when the blue light that is sent equally also shone the color shifting ink part of bill, light was reflected to sensor SI1 and goes up and convert into electric signal; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 13～R19, capacitor C 3～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified; Just obtained the color data of the RGB light of color shifting ink under the second incident angle LA2 reflected light to this, data just can be discerned the second incident angle LA2 reflection colour of color shifting ink through the single-chip microcomputer calculation process.Just can discern most false color shifting inks this moment; If the discrimination of feeling is not enough; Can increase the color data of the RGB light of color shifting ink under the 3rd incident angle LA3 reflected light; Control the second incident angle LA2 reflection source in the single-chip microcomputer timesharing and take turns to increase on the luminous basis excitaton source of the 3rd incident angle LA3 reflection source, increase control LED2R_EN, LED2G_EN, that the LED2B_EN interface level takes turns light source is luminous as excitaton source; LED2 is the excitaton source of the 3rd incident angle LA3 reflection source, and the LED1 reflection source takes turns behind luminous the finishing, and single-chip microcomputer continues timesharing control by led driver U2; Resistance R 7～R12, adjustable resistor VR4～VR6, capacitor C 2; LED2R_EN, LED2G_EN, the LED2B_EN interface level of forming control circuit for light source make light source luminous in turn; To be that all the other LED1 when the low level of high level close not luminous as LED2R_EN, and LED2 only launches ruddiness, and this moment, the strong and weak scalable VR4 of ruddiness arrived suitable intensity of illumination; The red light irradiation that is sent is during to the color shifting ink part of bill; Light is reflected on the sensor SI1 and converts electric signal into, and this electric signal is through the operational amplifier U3 of signal processing circuit, resistance R 13～R19; Capacitor C 3～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified; When LED2G_EN is that all the other LED1 when the low level of high level close not luminous; LED2 only launches green glow; This moment, the strong and weak scalable VR5 of green glow arrived suitable intensity of illumination, and when the green glow that is sent shone the color shifting ink part of bill equally, light was reflected to sensor SI1 and goes up and convert into electric signal; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 13～R19, capacitor C 3～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified; When LED1B_EN is that all the other LED1 when the low level of high level close not luminous; LED2 only launches blue light; This moment, the strong and weak scalable VR2 of blue light arrived suitable intensity of illumination, and when the blue light that is sent equally also shone the color shifting ink part of bill, light was reflected to sensor SI1 and goes up and convert into electric signal; This electric signal is through the operational amplifier U3 of signal processing circuit; Resistance R 13～R19, capacitor C 3～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified; The color data of the RGB light of the color shifting ink that collects under the 3rd incident angle LA3 reflected light just can be discerned the reflection colour of color shifting ink through the single-chip microcomputer calculation process, more together just can the accurate recognition color shifting ink through the single-chip microcomputer calculation process with the data of the second incident angle LA2 reflection colour.

Embodiment three: the functional-block diagram of present embodiment three and index path and embodiment one are identical; But the monochromatic type that light source 2 sends is different; The light source 2 of embodiment one sends red monochromatic light, green monochromatic light and Lan Se monochromatic light in turn, and the light source 2 of embodiment three sends white monochromatic light.

The electrical schematic diagram of present embodiment three is shown in figure 11.LED1 is the excitaton source of light source, and Single-chip Controlling is by led driver U1, resistance R 1～R4, and capacitor C 1, the LED1_EN interface level of forming control circuit for light source makes light source send white light as excitaton source; When the white light of being sent arrives the color shifting ink part of bill; White light has reflected light to shine the first receiving angle LB2 and the second receiving angle LB1 simultaneously; When the sensor U9 that shines the second receiving angle LB1 when reflected light goes up, tell red, green, blue three coloured light and convert electric signal into through U9, the electric signal of ruddiness is through the operational amplifier U3 of signal processing circuit; Adjustable resistor VR2; Resistance R 15～R24, capacitor C 4～C5, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified; The electric signal of green glow is through the operational amplifier U5 of signal processing circuit; Adjustable resistor VR4; Resistance R 38～R40, R42～R45, R47, R48, R50, capacitor C 9, C11, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified; The electric signal of blue light is through the operational amplifier U7 of signal processing circuit; Adjustable resistor VR6; Resistance R 41, R46, R49, R58～R64, capacitor C 10, C13, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified; Just obtained the color data of the second receiving angle LB1 RGB light of color shifting ink under reflected light, data just can be discerned the reflection colour of color shifting ink through the single-chip microcomputer calculation process.Just can discern most false color shifting inks this moment; If discrimination is not enough, can increase the color data of the first receiving angle LB2 RGB light of color shifting ink under reflected light, when the sensor U8 that shines the first receiving angle LB2 when reflected light goes up; Tell red, green, blue three coloured light and convert electric signal into through U8; The electric signal of ruddiness is through the operational amplifier U2 of signal processing circuit, adjustable resistor VR1, resistance R 5～R14; Capacitor C 2～C3, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified; The electric signal of green glow is through the operational amplifier U4 of signal processing circuit; Adjustable resistor VR3; Resistance R 25～R27, R29～R32, R34, R35, R37, capacitor C 6, C8, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified; The electric signal of blue light is through the operational amplifier U6 of signal processing circuit; Adjustable resistor VR5; Resistance R 28, R33, R36, R51～R57, capacitor C 7, C12, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified; The color data of the first receiving angle LB2 RGB light of the color shifting ink that collects under reflected light just can be discerned the refraction color of color shifting ink through the single-chip microcomputer calculation process, more together just can the accurate recognition color shifting ink through the single-chip microcomputer calculation process with the data of the second receiving angle LB1 reflection colour.

Embodiment four: the functional-block diagram of present embodiment four and index path and embodiment two are identical; But the monochromatic type that light source 2 sends is different; The light source 2 of embodiment two sends red monochromatic light, green monochromatic light and Lan Se monochromatic light in turn, and the light source 2 of embodiment four sends white monochromatic light.

The electrical schematic diagram of present embodiment four is shown in figure 12.LED1, LED2 are the excitaton source of light source; Single-chip microcomputer timesharing control is by led driver U4, U6; Resistance R 1～R2, R9～R10, R21～R24, capacitor C 2, C5, it is luminous as excitaton source that LED1_EN, the LED2_EN interface level of composition control circuit for light source takes turns LED1, LED2 light source; When LED1_EN is a low level for high level LED2_EN, LED1 sends white light, and LED2 closes; When the white light that is sent shines the color shifting ink part of bill from the second incident angle LA2, when white light is reflected on the sensor U5, tells red, green, blue three coloured light and convert electric signal into through U5; The electric signal of ruddiness is through the operational amplifier U1 of signal processing circuit, triode Q1, Q2, adjustable resistor VR1, VR2; Resistance R 3～R8, R15, R18, R20; Capacitor C 1, C4, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified, and the sensitivity of ruddiness can be adjusted VR1; The electric signal of green glow is through the operational amplifier U2 of signal processing circuit; Triode Q3, Q4; Adjustable resistor VR3, VR4, resistance R 11, R13～R14, R16～R17, R19, R26, R29, R33, R36, capacitor C 3, C7; The amplifying circuit of forming carries out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified, and the sensitivity of green glow can be adjusted VR3; The electric signal of blue light is through the operational amplifier U3 of signal processing circuit; Triode Q5, Q6; Adjustable resistor VR5, VR6, resistance R 25, R27～R28, R30～R32, R34, R35, R37, R38, capacitor C 6, C8; The amplifying circuit of forming carries out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified, and the sensitivity of blue light can be adjusted VR5; Just obtained the color data of the RGB light of color shifting ink under the second incident angle LA2 reflected light, data just can be discerned the reflection colour of color shifting ink through the single-chip microcomputer calculation process.Just can discern most false color shifting inks this moment, if discrimination is not enough, can increase the color data of the RGB light of color shifting ink under the 3rd incident angle LA3 reflected light; Single-chip microcomputer continues timesharing control control circuit for light source, and when LED1_EN is a high level for low level LED2_EN, LED1 closes; LED2 sends white light, when the white light that is sent shines the color shifting ink part of bill from the 3rd incident angle LA3, when white light is reflected on the sensor U5; Tell red, green, blue three coloured light and convert electric signal into through U5; The electric signal of ruddiness is through the operational amplifier U1 of signal processing circuit, triode Q1, Q2, adjustable resistor VR1, VR2; Resistance R 3～R8, R15, R18, R20; Capacitor C 1, C4, the amplifying circuit of composition carry out delivering to the data that the single-chip microcomputer acquired signal obtains reflection to red light after high power is amplified, and the sensitivity of ruddiness can be adjusted VR2; The electric signal of green glow is through the operational amplifier U2 of signal processing circuit; Triode Q3, Q4; Adjustable resistor VR3, VR4, resistance R 11, R13～R14, R16～R17, R19, R26, R29, R33, R36, capacitor C 3, C7; The amplifying circuit of forming carries out delivering to the data that the single-chip microcomputer acquired signal obtains the green glow reflection after high power is amplified, and the sensitivity of green glow can be adjusted VR4; The electric signal of blue light is through the operational amplifier U3 of signal processing circuit; Triode Q5, Q6; Adjustable resistor VR5, VR6, resistance R 25, R27～R28, R30～R32, R34, R35, R37, R38, capacitor C 6, C8; The amplifying circuit of forming carries out delivering to the data that the single-chip microcomputer acquired signal obtains blu-ray reflection after high power is amplified, and the sensitivity of blue light can be adjusted VR6; The color data of the RGB light of the color shifting ink that collects under the 3rd incident angle LA3 reflected light just can be discerned the 3rd incident angle LA3 reflection colour of color shifting ink through the single-chip microcomputer calculation process, more together just can the accurate recognition color shifting ink through the single-chip microcomputer calculation process with the data of the second incident angle LA2 reflection colour.

Embodiment five: like Fig. 4 and shown in Figure 7; Said light source 2 is for being positioned at the 4th led light source 24 of money transmitting channel 12 lower edge; Said sensor 3 comprise the 4th photoelectric sensor 34, the four photoelectric sensors 34 be positioned at said darkroom 1 and with the relative position of said the 4th led light source 24;

Entering darkroom 1 was received by said the 4th photoelectric sensor 34 after the light that said the 4th led light source 24 sends penetrated bank note 11 color shifting ink positions from bottom to top.

The electrical schematic diagram of present embodiment five is shown in figure 13.LED1 is the excitaton source of light source; The single-chip microcomputer timesharing is controlled by led driver U1, adjustable resistor VR1～VR3, resistance R 1～R6; Capacitor C 1, it is luminous as excitaton source that LED1R_EN, LED1G_EN, the LED1B_EN interface level of composition control circuit for light source takes turns light source; When LED1R_EN is that all the other LED1 when the low level of high level only launch ruddiness; This moment, the strong and weak scalable VR1 of ruddiness reached suitable intensity of illumination; The red light irradiation that is sent is during to the color shifting ink part of bill; Light penetrated color shifting ink and shines sensor SI1 and go up and convert electric signal into, and this electric signal is through the operational amplifier U2 of signal processing circuit, resistance R 7～R13; Capacitor C 3～C4, the amplifying circuit of composition carry out delivering to the single-chip microcomputer acquired signal after high power is amplified and obtain the data that ruddiness penetrates; When LED1G_EN is that all the other LED1 when the low level of high level only launch green glow; This moment, the strong and weak scalable VR2 of green glow reached suitable intensity of illumination; When the green glow that is sent shines the color shifting ink part of bill; Light penetrated color shifting ink and shines sensor SI1 and go up and convert electric signal into, and this electric signal is through the operational amplifier U2 of signal processing circuit, resistance R 7～R13; Capacitor C 3～C4, the amplifying circuit of composition carry out delivering to the single-chip microcomputer acquired signal after high power is amplified and obtain the data that green glow penetrates; When LED1B_EN is that all the other LED1 when the low level of high level only launch blue light; This moment, the strong and weak scalable VR3 of blue light reached suitable intensity of illumination; The blue light illumination that is sent is during to the color shifting ink part of bill; Light penetrated color shifting ink and shines sensor SI1 and go up and convert electric signal into, and this electric signal is through the operational amplifier U2 of signal processing circuit, resistance R 7～R13; Capacitor C 3～C4, the amplifying circuit of composition carry out delivering to the single-chip microcomputer acquired signal after high power is amplified and obtain the data that blue light penetrates; The data that collect just can be discerned the color that penetrates of color shifting ink through the single-chip microcomputer calculation process.If discrimination is not enough, can increase any one or above data of mode 1～4, just can the accurate recognition color shifting ink.

Embodiment six: like Fig. 4 and shown in Figure 8; Said light source 2 is for being positioned at the 5th led light source 25 in said darkroom 1; Said sensor 3 comprises that the 5th photoelectric sensor 35, the five photoelectric sensors 35 are positioned at money transmitting channel 12 top edge and the position relative with the 5th led light source 25 in said darkroom 1;

Entering darkroom 1 was received by said the 5th photoelectric sensor 35 after the light that said the 5th led light source 25 sends penetrated bank note 11 color shifting ink positions from the top down.

The electrical schematic diagram of present embodiment six is shown in figure 14.LED1 is the excitaton source of light source, and Single-chip Controlling is by led driver U1, resistance R 10～R13, and capacitor C 2, the LED1_EN interface level of forming control circuit for light source makes light source send white light as excitaton source; When the white light of being sent arrives the color shifting ink part of bill; White light penetrated color shifting ink and shone sensor U5 when going up, and told red, green, blue three coloured light and converted electric signal into through U5, and the electric signal of ruddiness is through the operational amplifier U1 of signal processing circuit; Adjustable resistor VR1; Resistance R 1～R9, R23, capacitor C 1, C4, the amplifying circuit of composition carry out delivering to the single-chip microcomputer acquired signal after high power is amplified and obtain the data that ruddiness penetrates; The electric signal of green glow is through the operational amplifier U2 of signal processing circuit, and adjustable resistor VR2, resistance R 14～R22, R24, capacitor C 3, C6, the amplifying circuit of composition carry out delivering to the single-chip microcomputer acquired signal after high power is amplified and obtain the data that green glow penetrates; The electric signal of blue light is through the operational amplifier U3 of signal processing circuit, and adjustable resistor VR3, resistance R 25～R34, capacitor C 5, C7, the amplifying circuit of composition carry out delivering to the single-chip microcomputer acquired signal after high power is amplified and obtain the data that blue light penetrates; The data that collect just can be discerned the color that penetrates of color shifting ink through the single-chip microcomputer calculation process.If discrimination is not enough, can increase any one or above data of mode 1～4, just can the accurate recognition color shifting ink.

Claims

1. bank note false-identifying device with color changed ink identification function; Comprise the false distinguishing modular assembly of gathering and handling bill detection zone physical message to be identified, this false distinguishing modular assembly comprises: light source (2), control circuit for light source (4), sensor (3), signal processing circuit (5) and single-chip microcomputer (6); The signal input and output side of this control circuit for light source (4) connects said single-chip microcomputer (6) and light source (2) respectively, and the signal input and output side of this signal processing circuit (5) connects said sensor (3) and single-chip microcomputer (6) respectively; It is characterized in that also comprising darkroom (1);

Said light source (2) is for having the more than one monochromatic source of different incidence angles degree; Said sensor (3) is for having the more than one photoelectric sensor of different receiving angles; Said more than one photoelectric sensor is installed in interior appropriate location, said darkroom (1), and said more than one monochromatic source is placed in the said darkroom (1) or money transmitting channel (12) marginal position relative with said darkroom (1);

When sending, said control circuit for light source (4) control light source (2) produces light reflection or transmittance when monochromatic light shines the color shifting ink position that money transmitting channel (12) goes up bank note; This reflected light or transmitted light receive and are converted into electric signal by said sensor (3); Said signal processing circuit (5) is handled this electric signal, and said single-chip microcomputer (6) receives this result and exports the recognition result of bank note color shifting ink.

2. the bank note false-identifying device with color changed ink identification function as claimed in claim 1 is characterized in that: said control circuit for light source (4) is controlled the monochromatic light that said light source (2) sends and is comprised one or more the monochromatic combinations in red light, green light, blue coloured light, the white monochromatic light.

3. the bank note false-identifying device with color changed ink identification function as claimed in claim 1 is characterized in that: said control circuit for light source (4) is controlled said light source (2) and is sent red monochromatic light, green monochromatic light and Lan Se monochromatic light in turn.

4. like claim 1,2 or 3 described bank note false-identifying devices with color changed ink identification function; It is characterized in that: said light source (2) and sensor (3) are arranged in the diverse location in the said darkroom (1); Said light source (2) comprises first led light source (21); This first led light source (21) incident angle LA1 of color shifting ink horizontal level is relatively spent less than 30; Said sensor (3) comprises second photoelectric sensor (32) and first photoelectric sensor (31); This first photoelectric sensor (31) the relatively first receiving angle LB1 of color shifting ink horizontal level be more than or equal to 30 degree angles and arbitrarily angled less than 150 degree angles, and the second receiving angle LB2 of the relative color shifting ink horizontal level of this second photoelectric sensor (32) is more than or equal to 150 degree angles and arbitrarily angled smaller or equal to 180 degree angles;

The illumination of said first led light source (21) produces the light reflection after being mapped to bank note color shifting ink position, and the component that this reflected light is projected on the said first receiving angle LB1 and the second receiving angle LB2 is received by said first photoelectric sensor (31) and second photoelectric sensor (32) respectively.

5. like claim 1,2 or 3 described bank note false-identifying devices with color changed ink identification function; It is characterized in that: said light source (2) and sensor (3) are arranged in the diverse location in the said darkroom (1); Said light source (2) comprises second led light source (22) and the 3rd led light source (23); This second led light source (22) relatively the second incident angle LA2 of color shifting ink horizontal level less than 30 degree, the 3rd led light source (23) relatively the 3rd incident angle LA3 of color shifting ink horizontal level more than or equal to 30 degree and arbitrarily angled smaller or equal to 150 degree angles; Said sensor (3) comprises the 3rd photoelectric sensor (33), the 3rd photoelectric sensor (33) relatively the 3rd receiving angle LB3 of color shifting ink horizontal level for for more than or equal to 150 degree angles and arbitrarily angled smaller or equal to 180 degree angles;

The illumination of said second led light source (22) and the 3rd led light source (23) all produces the light reflection after being mapped to bank note color shifting ink position, and the component that the reflected light timesharing of two different directions light sources is projected on said the 3rd receiving angle LB3 is received by said the 3rd photoelectric sensor (33).

6. like claim 1,2 or 3 described bank note false-identifying devices with color changed ink identification function; It is characterized in that: said light source (2) is for being positioned at the 4th led light source (24) of money transmitting channel (12) lower edge; Said sensor (3) comprises the 4th photoelectric sensor (34), the 4th photoelectric sensor (34) be positioned at said darkroom (1) and with the relative position of said the 4th led light source (24);

The light that said the 4th led light source (24) sends penetrates from bottom to top and gets into darkroom (1) behind the bank note color shifting ink position and received by said the 4th photoelectric sensor (34).

7. like claim 1,2 or 3 described bank note false-identifying devices with color changed ink identification function; It is characterized in that: said light source (2) is for being positioned at the 5th led light source (25) in said darkroom (1); Said sensor (3) comprises the 5th photoelectric sensor (35), the 5th photoelectric sensor (35) be positioned at money transmitting channel (12) top edge and with the relative position of the 5th led light source (25) of said darkroom (1);

The light that said the 5th led light source (25) sends penetrates from the top down and gets into darkroom (1) behind the bank note color shifting ink position and received by said the 5th photoelectric sensor (35).

8. the bank note false-identifying device with color changed ink identification function as claimed in claim 4; It is characterized in that: said first led light source (21) the incident angle LA1 of color shifting ink horizontal level relatively is 30 degree; Said second photoelectric sensor (32) the second receiving angle LB2 of color shifting ink horizontal level relatively is 90 degree, and said first photoelectric sensor (31) the first receiving angle LB1 of color shifting ink horizontal level relatively is 150 degree.

9. the bank note false-identifying device with color changed ink identification function as claimed in claim 5; It is characterized in that: said second led light source (22) the second incident angle LA2 of color shifting ink horizontal level relatively is 30 degree, and said the 3rd led light source (23) the 3rd incident angle LA3 of color shifting ink horizontal level relatively is 90 degree; Said the 3rd photoelectric sensor (33) the 3rd receiving angle LB3 of color shifting ink horizontal level relatively is 150 degree.