CN2558010Y - RF identifying anti-fake instrument - Google Patents

RF identifying anti-fake instrument Download PDF

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Publication number
CN2558010Y
CN2558010Y CN 02275704 CN02275704U CN2558010Y CN 2558010 Y CN2558010 Y CN 2558010Y CN 02275704 CN02275704 CN 02275704 CN 02275704 U CN02275704 U CN 02275704U CN 2558010 Y CN2558010 Y CN 2558010Y
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China
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circuit
output
input
frequency
constitute
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Expired - Fee Related
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CN 02275704
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Chinese (zh)
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薛亮
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Individual
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Individual
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Abstract

The utility model provides a radio frequency identification anti-counterfeiting instrument. The circuits of the utility model includes a high voltage circuit, a decoding plate, a high frequency signal circuit, an alarm circuit and a CPU; wherein the output of the high voltage circuit is connected with the input of the decoding plate, the output of the decoding plate is connected with the input of the alarm circuit, the output of the alarm circuit is connected with the input of the CPU and the input of the decoding plate, the output of the CPU is connected with the input of the alarm circuit, and the output of the high frequency signal circuit is connected with the input of the CPU. The utility model which is a non-contact electronic identification technology is cooperative with the unexposed electronic tags embedded in the goods for identifying the goods quickly, conveniently and precisely, thus the utility model is mainly applied to the anti-counterfeiting for brand products.

Description

The radio-frequency (RF) identification anti-false instrument
Technical field
The utility model relates to a kind of anti-counterfeiting technology, particularly relates to a kind of radio-frequency (RF) identification anti-false instrument.
Background technology
At present, common anti-counterfeiting technology mainly contains several; As anti-counterfeit package, promptly disposable bottle cap; Laser tag; Code anti-fake, i.e. Help by Phone; Biological false proof; Ultraviolet light is false proof etc., and wherein, laser anti-counterfeit and code anti-fake occupy the share more than 60%.
It is a kind of based on electromagnetic theory that the purpose of this utility model is to provide, and utilizes the information processing manner of radiowave " scanning " data, can discriminate the true and false radio-frequency (RF) identification anti-false instrument of commodity fast, conveniently, like clockwork.
The utility model radio-frequency (RF) identification anti-false instrument is achieved in that its circuit comprises high-tension circuit, decoding deck IC 2, high-frequency signal circuit, warning circuit and central processing unit IC 1, high-tension circuit output meets decoding deck input IC 2, decoding deck IC 2Output is received a crime report and is shown the circuit input, and warning circuit output meets central processing unit and decoding deck IC 2Input, central processing unit IC 1Output is received a crime report and is shown the circuit input, and high-frequency signal circuit output meets central processing unit IC 1Input.Wherein, high-tension circuit is by the 18Hz square-wave generator, and the 25Hz square-wave generator is exported booster circuit and multiplication of voltage and subtracted the wave circuit composition; Decoding deck is a pair of input, output antenna; High-frequency signal circuit is by active crystal oscillator J, scale-of-two synchronous counter U 21, decade counter U 22, schmidt trigger reactor U 23And the high-power FET output stage is formed; Warning circuit is made up of radio-frequency amplifier, amplification demodulatoring circuit, amplifier threshold values comparer and output circuit.
18Hz square-wave generator in the high-tension circuit is by schmidt trigger phase inverter U 3, resistance R 16, capacitor C 5Constitute; The 25Hz square-wave generator is by operational amplifier U 1, resistance R 1, R 2, R 3, R 4, capacitor C 1Constitute; Output booster circuit and multiplication of voltage subtract wave circuit by resistance R 5～R 14, capacitor C 2～C 4, diode D 1～D 3, operational amplifier U 2, high-power acoustic effect pipe Q 1, inductance L 1And transformer D 1Constitute; High-power FET output stage in the high-frequency circuit is by high-power FET Q 21And Q 22, diode D 21And D 22, capacitor C 21With 22, resistance R 21With 22Constitute; Radio-frequency amplifier in the warning circuit is by radio-frequency amplifier U 31And peripheral circuit constitutes; Amplification demodulatoring circuit is by resistance R 35～R 42, capacitor C 35～C 41, diode D 33And D 34, triode Q 31And inductance L 31Constitute; Computing threshold values comparer is by comparer U 32, resistance R 43～R 50, triode Q 32And Q 33And capacitor C 42Constitute; Output circuit is by buzzer BJ and light emitting diode D 35Constitute.
When the utility model radio-frequency (RF) identification anti-false instrument uses, be loaded with data message electronic tag embed usually in the commodity object with data to be read, the utility model then is placed in relatively-stationary position and carries out data acquisition, also removable recognition.Its principle of work is that high-tension circuit is to 2 emission ring output 18Hz370V of decoding deck P-PHigh-voltage pulse, it is that the synchronous break-make of 8MHz speed-sensitive switch is controlled that this pulse negative edge is subjected to frequency, thereby realizes that the high-voltage pulse width of cloth penetrates the field.When electronic tag has just entered the decoding deck width of cloth and penetrates the zone,, destroyed the synchronism of electric field because of being subjected to the absorption of LC shunt-resonant circuit in the label.The nonsynchronous signal that decoding deck is sent is discerned by central processing unit, and after a series of processing of circuit, buzzer and light emitting diode send caution.Electronic tag is further, and the LC parallel resonator is breakdown near behind the decoding deck central area, and buzzer disappears, and promptly finishes a process of electronic tag decoding.
The advantage of the utility model radio-frequency (RF) identification anti-false instrument is that the up-to-date information processing mode of having utilized radiowave " scanning " data to grow up is the contactless electronic recognition technology that a kind of magnetic card different from the past, IC-card etc. are swiped the card.The electronic tag contact need not to expose, and avoids the loose contact of magnetic card, IC-card, and the higher weakness of carrier cost, and is false proof easy and simple to handle, quick, discriminates the true and false of commodity like clockwork, is mainly used in the false proof of name brands.
Embodiment
Fig. 1: the utility model circuit block diagram
Fig. 2: the utility model high-tension circuit connection layout
Fig. 3: the utility model high-frequency signal circuit connection layout
Fig. 4: the utility model warning circuit connection layout
Its circuit of the utility model radio-frequency (RF) identification anti-false instrument comprises high-tension circuit, decoding deck, high-frequency signal circuit, warning circuit and central processing unit (JMMK-988), high-tension circuit output connects the decoding deck input, decoding deck output is received a crime report and is shown the circuit input, warning circuit output connects central processing unit and decoding deck input, central processing unit output is received a crime report and is shown the circuit input, and high-frequency signal circuit output connects the central processing unit input.
Wherein, high-tension circuit is by the 18Hz square-wave generator, and the 25Hz square-wave generator is exported booster circuit and multiplication of voltage and subtracted the wave circuit composition.18Hz square-wave generator in the high-tension circuit is by schmidt trigger phase inverter U 3(74HC14), resistance R 16, capacitor C 5Constitute; The 25Hz square-wave generator is by operational amplifier U 1(TL082), resistance R 1, R 2, R 3, R 4, capacitor C 1Constitute; Output booster circuit and multiplication of voltage subtract wave circuit by resistance R 5～R 14, capacitor C 2～C 4, diode D 1～D 3, operational amplifier U 2(TL082), high-power acoustic effect pipe Q 1(IRF830), inductance L 1And transformer D 1Constitute.Its annexation is C 5One termination U 3Input end 1 pin, other end ground connection, R 16Meet U 3Input end 1 pin and U 3Output terminal 2 pin, U 3Power end 14 pin connect+the 5V power supply, earth terminal 7 pin ground connection, U 3Output terminal 2 pin meet IC 1Input end 1 pin.R 1One termination power, another termination R 2, R 2Other end ground connection, R 1And R 2Intersection point meet U 1Positive input terminal 3 pin, U 2Negative input end 2 pin meet C 1And R 4, C 1Other end ground connection, R 4The other end and R 5One termination U 1Output terminal 1 pin, R 3Be connected to U 11 pin and 3 pin between, R 5And R 6Intersection point passes through C 2Ground connection, R 6And R 7Intersection point meets IC 1Output terminal 8 pin, R 7Another termination U 2In-phase input end 5 pin, inverting input 6 pin meet R 9One end and D 1Negative terminal, R 9Other end ground connection.D 1Positive termination R 10And R 11The dividing potential drop mid point, R 10Another termination+12V power supply, R 11Other end ground connection.U 2In-phase input end 5 pin and output terminal 7 pin meet R 8, 7 pin meet Q simultaneously 1The G utmost point, Q 1S utmost point ground connection, the D utmost point is by R in parallel 13And L 1Meet T 1Elementary, elementary another termination+5V power supply, a secondary end ground connection, another termination C 3One end, C 3Another termination and D 2Negative terminal, D 3Anode intersects, D 2Positive ending grounding, D 3Negative terminal meets R 14One end, R 14Another termination C 4One end and IC 2, C 4Other end ground connection.
High-frequency signal circuit is by active crystal oscillator J, scale-of-two synchronous counter U 2(74HC161), decade counter U 22(4017), schmidt trigger reactor U 23(74HC14) and the high-power FET output stage form.Wherein, the high-power FET output stage in the high-frequency circuit is by high-power FET Q 21(IRF830) and Q 22(IRF830), diode D 21And D 22, capacitor C 21With 22, resistance R 21With 22Constitute.Its annexation is J one termination+5V power supply, other end ground connection, output termination IC 1Output terminal 16 pin and U 21Output terminal 2 pin, U 21Input end 1 pin meets IC 1Input end 17 pin, U 21Input end 7 pin meet IC 1Output terminal 20 pin, U 21Output terminal 14 pin meet U 22Input end 13 pin, U 22Input end 15 pin meet IC 1Input end 15 pin, U 22Output terminal 10 pin meet U 23Input end 5 pin, U 23Output terminal 6 pin meet IC 1Output terminal 20 pin, U 21Power end 16,10,9 pin, U 22Power end 8 pin and U 23Power end 14 pin connect+the 5V power supply, U 21Output terminal 3,4,5,6,8 pin, U 22Output terminal 8 pin and U 23Output terminal 7 pin ground connection, IC 1Output terminal 2 pin and 3 pin meet U respectively 23Inverting input 11 pin and 13 pin, reversed-phase output 12 pin meet D 21And C 21One end, output terminal 10 pin meet D 22And C 22One end, D 21And C 21Another termination Q 21The G utmost point, D 22And C 22Other end Q 22The G utmost point.R 21And R 22One termination+12V power supply, the other end meets Q respectively 21, Q 22The G utmost point.
The warning circuit warning circuit is made up of radio-frequency amplifier, amplification demodulatoring circuit, amplifier threshold values comparer and output circuit.Wherein, radio-frequency amplifier is by radio-frequency amplifier U 31(UA733), resistance R 31～R 33, R 51, R 52, capacitor C 31～C 34, diode D 31And D 32, transformer T 31Constitute; Amplification demodulatoring circuit is by resistance R 35～R 42, capacitor C 35～C 41, diode D 33And D 34, triode Q 31And inductance L 31Constitute; Computing threshold values comparer is by comparer U 32(TL082), resistance R 43～R 50, triode Q 32And Q 33And capacitor C 42Constitute; Output circuit is by buzzer BJ and light emitting diode D 35Constitute.Its annexation is that decoding deck receives articulating T 31Elementary, center head ground connection, T 31The secondary R that connects respectively 51, R 52One end, R 51, R 52Another termination D 31, D 32, C 31, C 32, C 33Meet C 31, another termination IC 1Input end 27 pin, C 34One termination C 32, another termination IC 1Output terminal 26 pin.U 31Power end 10 pin connect+12V, earth terminal 5 pin ground connection, and output terminal 4 pin and output terminal 11 pin meet R 34R 32And R 31Mid point meets U 31Input end 1 pin and C 31, C 33Intersection point, U 31High-frequency signal input end 14 pin meet C 32, C 43Intersection point, U 31Amplifying signal output terminal 7 pin meet IC 1Input end 25 pin, IC 1High-frequency signal output terminal 24 pin meet C 35One end, C 35Another termination Q 31The B utmost point, R 35And R 36With C 36, L 31, R 37, C 37, R 38Form typical triode high-frequency amplifier circuit, C 38One termination Q 31The C utmost point, with D 33, D 34, C 39Form the multiplication of voltage detecting circuit.R 40One termination U 32Input end 3 pin, the other end and R 41, R 42, C 41Intersect R 41Other end ground connection, R 42Another termination+12V, U 32Negative input end 2 pin meet R 43With R 44The dividing potential drop mid point, R 43Another termination+12V, R 44Other end ground connection.U 32Output terminal 1 pin meets R 45One end, R 45Another termination C 42And R 46One end, C 42Other end ground connection, R 46Another termination R 47One end and Q 32Base stage, R 47Other end ground connection, Q 32Grounded emitter, collector meets R 48, R 49One end, R 49Another termination Q 33Base stage, R 48Another termination Q 33Collector, Q 33Emitter meets R 50One end and BJ, R 50Another termination D 35

Claims (3)

1, a kind of radio-frequency (RF) identification anti-false instrument, it is characterized in that circuit comprises high-tension circuit, decoding deck, high-frequency signal circuit, warning circuit and central processing unit, high-tension circuit output connects the decoding deck input, decoding deck output is received a crime report and is shown the circuit input, warning circuit output connects central processing unit and decoding deck input, central processing unit output is received a crime report and is shown the circuit input, and high-frequency signal circuit output connects the central processing unit input.
2, radio-frequency (RF) identification anti-false instrument as claimed in claim 1 is characterized in that high-tension circuit by the 18Hz square-wave generator, the 25Hz square-wave generator, and output booster circuit and multiplication of voltage subtract wave circuit and form; Decoding deck is a pair of input, output antenna; High-frequency signal circuit is by active crystal oscillator J, scale-of-two synchronous counter U 21, decade counter U 22, schmidt trigger reactor U 23And the high-power FET output stage is formed; Warning circuit is made up of radio-frequency amplifier, amplification demodulatoring circuit, amplifier threshold values comparer and output circuit.
3, radio-frequency (RF) identification anti-false instrument as claimed in claim 2 is characterized in that 18Hz square-wave generator in the high-tension circuit is by schmidt trigger phase inverter U 3, resistance R 16, capacitor C 5Constitute; The 25Hz square-wave generator is by operational amplifier U 1, resistance R 1, R 2, R 3, R 4, capacitor C 1Constitute; Output booster circuit and multiplication of voltage subtract wave circuit by resistance R 5～R 14, capacitor C 2～C 4, diode D 1～D 3, operational amplifier U 2, high-power acoustic effect pipe Q 1, inductance L 1And transformer D 1Constitute; High-power FET output stage in the high-frequency circuit is by high-power FET Q 21And Q 22, diode D 21And D 22, capacitor C 21With 22, resistance R 21With 22Constitute; Radio-frequency amplifier in the warning circuit is by radio-frequency amplifier U 31And peripheral circuit constitutes; Amplification demodulatoring circuit is by resistance R 35～R 42, capacitor C 35～C 41, diode D 33And D 34, triode Q 31And inductance L 31Constitute; Computing threshold values comparer is by comparer U 32, resistance R 43～R 50, triode Q 32And Q 33And capacitor C 42Constitute; Output circuit is by buzzer BJ and light emitting diode D 35Constitute.
CN 02275704 2002-07-12 2002-07-12 RF identifying anti-fake instrument Expired - Fee Related CN2558010Y (en)

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Application Number Priority Date Filing Date Title
CN 02275704 CN2558010Y (en) 2002-07-12 2002-07-12 RF identifying anti-fake instrument

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Application Number Priority Date Filing Date Title
CN 02275704 CN2558010Y (en) 2002-07-12 2002-07-12 RF identifying anti-fake instrument

Publications (1)

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CN2558010Y true CN2558010Y (en) 2003-06-25

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CN 02275704 Expired - Fee Related CN2558010Y (en) 2002-07-12 2002-07-12 RF identifying anti-fake instrument

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100370390C (en) * 2003-06-28 2008-02-20 国际商业机器公司 Identification system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100370390C (en) * 2003-06-28 2008-02-20 国际商业机器公司 Identification system and method

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