CN205354107U - Consumptive material anti -counterfeit device based on radio frequency identification RFID - Google Patents
Consumptive material anti -counterfeit device based on radio frequency identification RFID Download PDFInfo
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- CN205354107U CN205354107U CN201620140006.3U CN201620140006U CN205354107U CN 205354107 U CN205354107 U CN 205354107U CN 201620140006 U CN201620140006 U CN 201620140006U CN 205354107 U CN205354107 U CN 205354107U
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Abstract
The utility model provides a based on RFID's consumptive material anti -counterfeit device, wherein, the device includes: RFID antifalsification label, RFID tag information gather device, true and false judgement device spare, encrypt device and anti -fake manager, RFID tag information gathers the device and is connected with RFID antifalsification label and true and false judgement device spare, gathers the tag information that the RFID antifalsification label includes to the transmission tag information give true and false judgement device spare, true and false judgement device spare is connected with the encryption device, receives the tag information that RFID tag information gathered the device transmission, according to this tag information judgement true and false, obtains the judged result to the transmission judged result is given and is encrypted the device, encrypts this judged result by encrypting the device, and transmits the encrypted judged result for anti -fake manager. The utility model discloses in, the RFID antifalsification label has the uniqueness, is is hardly analysed and explained and duplicates, can effectively prevent to pretend into the genuine thing with counterfeit and shoddy products.
Description
Technical field
This utility model relates to RFID (RadioFrequencyIdentification, RF identification) and reads and writes technical field, in particular to a kind of consumptive material false proof device based on RFID.
Background technology
In the work and daily life of people; often have the demand that consumptive material is carried out truth identification; consumptive material refers to the material that every field consumes; such as; in print shop, the material of printer consumption is exactly printing consumables; and the printing consumables bought can be carried out the true and false and distinguish by print shop, in case buying counterfeit and shoddy goods.
In existing anti-counterfeiting technology, it is mostly have bar code or Quick Response Code in the surface configuration of consumptive material, user is by scanning bar code or the Quick Response Code on consumptive material surface, distinguish the true and false of consumptive material, but bar code of the prior art or Quick Response Code are easy to be cracked and replicate, thus genuine piece that counterfeit and shoddy goods are disguised oneself as.
Utility model content
In view of this, this utility model provides a kind of consumptive material false proof device based on RFID, is used for solving anti-counterfeiting technology of the prior art and is easily cracked and replicates, thus the problem of genuine piece that counterfeit and shoddy goods are disguised oneself as.
First aspect, this utility model embodiment provides a kind of consumptive material false proof device based on RFID, including: RFID antifalsification label, FRID label information sampler, the true and false judge device, encryption devices and false proof manager；
With described RFID antifalsification label and the described true and false, described FRID label information sampler judges that device is connected respectively, gather the label information that described RFID antifalsification label includes, and transmits described label information and judge device to the described true and false；
The described true and false judges that device is connected with described encryption devices, receives the label information of described FRID label information sampler transmission, judges the true and false according to described label information, obtains judged result, and transmits described judged result to described encryption devices；
Described encryption devices is connected with described false proof manager, receives the described true and false and judges the judged result of device transmission, described judgement is connect goods and is encrypted, and transmits the judged result after encryption to described false proof manager.
In conjunction with first aspect, this utility model embodiment provides the first possible implementation of above-mentioned first aspect, and wherein, described FRID label information sampler includes: rfid interrogator, carrier wave straining element and antenna；
Described antenna is connected with described RFID antifalsification label and described carrier wave straining element respectively, receives the label information of described RFID antifalsification label transmission, and transmits described label information to described carrier wave straining element；
Described carrier wave straining element is connected with described rfid interrogator, receives the label information of described antenna transmission, and transmits described label information to described rfid interrogator；
With the described true and false, described rfid interrogator judges that device is connected, receive described carrier wave straining element transmission label information, and transmit described label information give the described true and false judge device.
In conjunction with the first possible implementation of first aspect, this utility model embodiment provides the implementation that the second of above-mentioned first aspect is possible, and wherein, the described true and false judges that device includes: memory element and comparison element；
Described comparison element is connected with described memory element and described rfid interrogator respectively, receive the label information of described rfid interrogator transmission, and read the preset numbers of the consumptive material corresponding with described label information of storage in described memory element, the preset numbers of described label information Yu described consumptive material is compared, obtains comparison result；
Described comparison element is connected with described encryption devices, transmits described comparison result to described encryption devices.
In conjunction with the first possible implementation of first aspect, this utility model embodiment provides the third possible implementation of above-mentioned first aspect, and wherein, described device also includes radio frequency matching circuit；
Described radio frequency matching circuit is connected with described antenna and described rfid interrogator respectively, the impedance of the impedance of described antenna with described rfid interrogator is mated.
In conjunction with the third possible implementation of first aspect, this utility model embodiment provides the 4th kind of possible implementation of above-mentioned first aspect, and wherein, described radio frequency matching circuit includes: bonder and inductance capacitance LC filter circuit；
Described bonder is connected with described antenna and described LC filter circuit respectively, and described LC filter circuit is connected with described rfid interrogator, the impedance of the impedance of described rfid interrogator with described antenna is mated.
In conjunction with the first possible implementation of first aspect, this utility model embodiment provides the 5th kind of possible implementation of above-mentioned first aspect, and wherein, described device also includes power management components；
With power supply, the described true and false, described power management components judges that device and described rfid interrogator are connected respectively, receive the electric energy of described power delivery, and transmits described electric energy and judge device and described rfid interrogator to the described true and false.
In conjunction with the 5th kind of possible implementation of first aspect, this utility model embodiment provides the 6th kind of possible implementation of above-mentioned first aspect, and wherein, described rfid interrogator includes signal conversion elements and transmitting element；
Described signal conversion elements is connected with described power management components and described transmitting element, receives the current signal of described power management components transmission, described current signal is converted into frequency electromagnetic waves, and transmits described frequency electromagnetic waves to described transmitting element；
Described transmitting element is connected with described antenna, receives the frequency electromagnetic waves of described signal conversion elements transmission, and transmits described frequency electromagnetic waves to described antenna；
Described antenna is connected with described RFID antifalsification label, receives the frequency electromagnetic waves of described transmitting element transmission, described frequency electromagnetic waves is broadcast to described RFID antifalsification label.
In conjunction with the first possible implementation of first aspect, this utility model embodiment provides the 7th kind of possible implementation of above-mentioned first aspect, and wherein, described FRID label information sampler includes multiple antenna；
The plurality of antenna is distributed in around the consumptive material containing RFID antifalsification label.
In conjunction with first aspect, this utility model embodiment provides the 8th kind of possible implementation of above-mentioned first aspect, and wherein, the connection of described encryption devices and described false proof manager is that communication interface connects or wireless network connects.
The consumptive material false proof device based on RFID that this utility model provides, device, encryption devices and false proof manager is judged including RFID antifalsification label, FRID label information sampler, the true and false, wherein, RFID antifalsification label has uniqueness, it is difficult to be cracked and replicate, it is possible to effectively prevent from disguising oneself as counterfeit and shoddy goods genuine piece.
For making above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, it is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 illustrates the structural representation of a kind of consumptive material false proof device based on RFID that this utility model embodiment provides；
It is a kind of based on the structural representation of FRID label information sampler in the consumptive material false proof device of RFID that Fig. 2 illustrates that this utility model embodiment provides；
What Fig. 3 illustrated that this utility model embodiment provides a kind of judges the structural representation of device based on the true and false in the consumptive material false proof device of RFID；
It is a kind of based on the circuit diagram of radio frequency matching circuit in the consumptive material false proof device of RFID that Fig. 4 illustrates that this utility model embodiment provides.
Accompanying drawing 4 description of symbols is as follows:
Bonder 401, the first electric capacity 402, inductance 403, the second electric capacity 404.
Detailed description of the invention
Below in conjunction with accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model, but is merely representative of selected embodiment of the present utility model.Based on embodiment of the present utility model, the every other embodiment that those skilled in the art obtain under the premise not making creative work, broadly fall into the scope of this utility model protection.
Consider in existing anti-counterfeiting technology, it is mostly at consumptive material surface configuration bar code or Quick Response Code, user is by scanning bar code or the Quick Response Code on consumptive material surface, distinguish the true and false of consumptive material, but bar code of the prior art or Quick Response Code are easy to be cracked and replicate, thus genuine piece that counterfeit and shoddy goods are disguised oneself as.Based on this, this utility model embodiment provides a kind of consumptive material false proof device based on RFID.It is described by the examples below.
Embodiment
This utility model embodiment provides a kind of consumptive material false proof device based on RFID.Wherein, consumptive material refers to the material of the consumption of every field, and such as, in print shop, the material of printer consumption is exactly printing consumables, and common printing consumables has print cartridge, printing paper, sealing film etc..
The consumptive material false proof device based on RFID that this utility model embodiment provides, RFID antifalsification label stores the label informations such as the title corresponding with this consumptive material and numbering, and on the corresponding consumptive material by the setting of this RFID antifalsification label, by reading the label information on this RFID antifalsification label, and this label information is compared with the numbering that this consumptive material is preset, judge the true and false of this consumptive material with this.
As it is shown in figure 1, the consumptive material false proof device based on RFID that this utility model embodiment provides, including: RFID antifalsification label 110, FRID label information sampler 120, the true and false judge device 130, encryption devices 140 and false proof manager 150；
With RFID antifalsification label 110 and the true and false, FRID label information sampler 120 judges that device 130 is connected respectively, gather the label information that includes of RFID antifalsification label 110, and transmits this label information and judge device 130 to the true and false；
The true and false judges that device 130 is connected with encryption devices 140, receives the label information of FRID label information sampler 120 transmission, judges the true and false according to this label information, obtain judged result, and transmit this judged result to encryption devices 140；
Encryption devices 140 is connected with false proof manager 150, receives the true and false and judges the judged result that device 130 transmits, this judged result is encrypted, and transmits the judged result after encryption to false proof manager 150.
Wherein, above-mentioned RFID antifalsification label 110 is arranged on consumptive material, each consumptive material is both provided with RFID antifalsification label 110, this RFID antifalsification label 110 stores title and the consumptive material corresponding with this title numbering of above-mentioned consumptive material, this numbering can be the production numbering of this consumptive material, RFID antifalsification label 110 can be ultra-high frequency RFID label, and the radio frequency band of hyperfrequency is in the scope of 860MHz～960MHz.
Above-mentioned FRID label information sampler 120 is a kind of device for gathering the label information that RFID antifalsification label 110 includes.
The title that store above-mentioned consumptive material in device 130 and the authenticity verification information of the factory pre-sets corresponding with the title of this consumptive material is judged in the above-mentioned true and false, this authenticity verification information can be the preset numbers of this consumptive material, this preset numbers can be preset to produce numbering, and this true and false judges that device 130 can as single-chip microcomputer.
Above-mentioned false proof manager 150 can be computer, mobile phone or PAD (PortableAndroidDevice, panel computer) etc..
In this utility model embodiment, the label information that FRID label information sampler 120 is understood regularly or Real-time Collection RFID antifalsification label 110 includes, this label information includes title and the production corresponding with this consumptive material numbering of this consumptive material, the label information collected is transmitted as the true and false and judges device 130 by FRID label information sampler 120, after true and false diagnosis apparatus part 130 receives the label information of FRID label information sampler 120 transmission, the preset numbers of this corresponding consumptive material of the title of the consumptive material included with this label information can be transferred according to this label information, this numbering can be that the default of this consumptive material produces numbering, then the preset numbers of the consumptive material numbering of storage in the label information received with this consumptive material is compared, judge that the consumptive material numbering that this label information includes judges that with the true and false in device 130, whether the preset numbers of this consumptive material of storage is consistent, if the consumptive material numbering in above-mentioned label information is consistent with the preset numbers of this consumptive material, then illustrate that this consumptive material is genuine piece, if the consumptive material numbering in above-mentioned label information is inconsistent with the preset numbers of this consumptive material, then illustrate that this consumptive material is counterfeit and shoddy goods, above-mentioned comparison result is exactly the true and false judged result that the true and false judges above-mentioned consumptive material that device 130 draws, the true and false judges that this judged result is transferred to encryption devices 140 by device 130, when encryption devices 140 receives after the true and false judges the judged result that device 130 transmits, this judged result is encrypted, and the judged result after encryption is transferred to false proof manager 150, when after the judged result after false proof manager 150 receives the encryption of encryption devices 140 transmission, judged result after this encryption is decrypted, obtain original judged result, so, the true and false of above-mentioned consumptive material just it is appreciated that by false proof manager 150.
Wherein, the judged result received is encrypted by above-mentioned encryption devices 140, it is possible to realized by following process:
When encryption devices 140 receives after the true and false judges the judged result that device 130 transmits, RSA (Rivest-Shamir-Adleman) algorithm or 3DES (TripleDataEncryptionStandard can be passed through, triple DES) above-mentioned judged result is encrypted by algorithm, obtain the ciphertext of this judged result, the namely judged result after encryption, after false proof manager 150 receives the ciphertext of encryption devices 140 transmission, input changes the key that ciphertext is corresponding, this ciphertext is converted into original judged result, judged result so can be protected illegally not stolen or read.
The consumptive material false proof device based on RFID that this utility model provides, by reading the label information on RFID antifalsification label 110, and the default checking information judged on device 130 with the true and false compares, distinguish the true and false of consumptive material, owing to above-mentioned RFID antifalsification label 110 has uniqueness, it is difficult to be cracked and replicate, it is possible to effectively prevent from disguising oneself as counterfeit and shoddy goods genuine piece.
Wherein, above-mentioned encryption devices 140 is that communication interface connects or wireless network connects with the connection of false proof manager 150.
In this utility model embodiment, communication interface can be set on above-mentioned encryption devices 140, in this manner it is achieved that the wired connection between encryption devices 140 and false proof manager 150, the true and false judged result after being encrypted by encryption devices 140 is transferred to false proof manager 150.
Above-mentioned communication interface can be USB (UniversalSerialBus, USB (universal serial bus)) interface, RS232 (recommendedstandard232, it is recommended that standard 232) interface etc..
It can be that WI-FI (Wireless-Fidelity, Wireless Fidelity) network connects that above-mentioned wireless network connects, it is possible to realize the wireless connections between encryption devices 140 and false proof manager 150 by arranging wireless network card on above-mentioned encryption devices 140.
Wherein, as an embodiment, as in figure 2 it is shown, above-mentioned FRID label information sampler 120 includes:
Rfid interrogator 121, carrier wave straining element 122 and antenna 123；
Antenna 123 is connected with RFID antifalsification label 110 and carrier wave straining element 122 respectively, receives the label information of RFID antifalsification label 110 transmission, and transmits this label information to carrier wave straining element 122；
Carrier wave straining element 122 is connected with rfid interrogator 121, the label information of reception antenna 123 transmission, and transmits this label information to rfid interrogator 121；
Rfid interrogator 121 judges that with the true and false device 130 is connected, and receives the label information of carrier wave straining element 122 transmission, and transmits this label information and judge device 130 to the true and false.
Wherein, above-mentioned rfid interrogator 121 is ultrahigh frequency radio frequency identification (RFID) reader.
In this utility model embodiment, antenna 123 is connected with RFID antifalsification label 110, receive the label information of RFID antifalsification label 110 transmission, this label information includes the title of the consumptive material at this RFID antifalsification label 110 place and the numbering of this consumptive material, and the label information of the RFID antifalsification label 110 that antenna 123 receives is the radiofrequency signal obtained through ovennodulation, after antenna 123 receives the radiofrequency signal corresponding to label information of RFID antifalsification label 110 transmission, by radio signal transmission corresponding for this label information to carrier wave straining element 122, after carrier wave straining element 122 receives the radiofrequency signal corresponding to label information of antenna 123 transmission, by radio signal transmission corresponding for this label information to rfid interrogator 121, after rfid interrogator 121 receives the radiofrequency signal corresponding to above-mentioned label information of carrier wave straining element transmission, radiofrequency signal corresponding for this label information is demodulated, recover original label information, and the label information after demodulation is transferred to the true and false judges device 130, when after the label information after true and false diagnosis apparatus part 130 receives the demodulation of rfid interrogator 121 transmission, transfer out this true and false and judge in device 130 preset numbers of corresponding this consumptive material of the title with the consumptive material that above-mentioned label information includes of storage, this preset numbers can be that the default of this consumptive material produces numbering, the numbering of the consumptive material included by above-mentioned label information is compared with the preset numbers of this consumptive material, judge that whether the numbering of the consumptive material that above-mentioned label includes is consistent with the preset numbers of this consumptive material, if the numbering of the consumptive material that above-mentioned label includes is consistent with the preset numbers of this consumptive material, then judge that this consumptive material is genuine piece, if the preset numbers of the numbering of the consumptive material that above-mentioned label includes and this consumptive material is inconsistent, then judge that this consumptive material is fake and forged, judged result obtained above is transferred to encryption devices 140, when encryption devices 140 receives after the true and false judges the judged result that device 130 transmits, adopt RSA or 3DES algorithm that this judged result is encrypted, obtain the ciphertext of this judged result, the namely judged result after encryption, and the judged result after this encryption is transferred to false proof manager 150, when after the judged result after false proof manager 150 receives the encryption of encryption devices 140 transmission, the judged result after this encryption of double secret key is adopted to be decrypted, obtain original judged result, the true and false situation of this consumptive material so just it is appreciated that by false proof manager 150.
Owing to rfid interrogator 121 needs constantly to transmit frequency electromagnetic waves to RFID antifalsification label 110, power supply is provided to RFID antifalsification label 110, for its work, so, it is easily caused rfid interrogator 121 and produces carrier wave leakage when the radiofrequency signal that the label information that reception antenna 123 transmits is corresponding, thus affecting the signal to noise ratio of the radiofrequency signal received, the receiving range of the radiofrequency signal that antenna 123 transmits is shortened by rfid interrogator 121, and the carrier wave of the opposite in phase of carrier wave that above-mentioned carrier wave straining element 122 can produce and reveal, and then offset with the carrier wave revealed, thus can suppress the carrier wave revealed, thus improve the receiving range of rfid interrogator 121.
Wherein, in order to ensure above-mentioned antenna 123 can radiofrequency signal corresponding to the label information of RFID antifalsification label 110 transmission on omnibearing reception consumptive material, the FRID label information sampler 120 that this utility model embodiment provides includes multiple antenna 123；
Above-mentioned multiple antenna 123 is distributed in around the consumptive material containing RFID antifalsification label 110.
Wherein, above-mentioned antenna 123 can be the numerical value such as 2 or 3, the concrete number of above-mentioned antenna 123 can be configured according to practical situation, and this utility model embodiment does not limit the concrete number of the antenna 123 that above-mentioned FRID label information sampler 120 includes.
In this utility model embodiment, can at the concrete application scenarios of above-mentioned consumptive material multiple antennas 123 disposed about, so, when using above-mentioned consumptive material, first the true and false of this consumptive material can be distinguished, such as, in printing consumables, the film printing sealing is provided with RFID antifalsification label 110, and above-mentioned film needs to be placed on and printed books etc. carries out on printing molding machine sealing, therefore, it can be provided around multiple antenna 123 at above-mentioned printing molding machine, receive the label information of RFID antifalsification label 110 transmission on above-mentioned film.Or, it is also possible to place above-mentioned consumptive material be provided around multiple antenna 123, so, when the consumptive material chosen is placed on above-mentioned position, above-mentioned antenna 123 just can receive RFID antifalsification label 110 transmit label information, above-mentioned consumptive material is carried out the true and false and distinguishes.
Wherein, as an embodiment, as it is shown on figure 3, the above-mentioned true and false judges that device 130 includes:
Memory element 131 and comparison element 132；
Comparison element 132 is connected with memory element 131 and rfid interrogator 121 respectively, receive the label information of above-mentioned rfid interrogator 121 transmission, and read the preset numbers of the consumptive material corresponding with above-mentioned label information of storage in memory element 131, the preset numbers of above-mentioned label information Yu above-mentioned consumptive material is compared, obtains comparison result；
Comparison element 132 is connected with encryption devices 140, and transmission comparison result is to encryption devices 140.
Wherein, the preset numbers of above-mentioned consumptive material is the production numbering that producer pre-sets when producing above-mentioned consumptive material, and this production numbering is unique.
In this utility model embodiment, RFID antifalsification label 110 is arranged on consumptive material, RFID antifalsification label 110 is provided with the label information of this consumptive material, this label information includes title and the numbering of consumptive material, the label information included is transferred to antenna 123 by RFID antifalsification label 110, after antenna 123 receives the label information of RFID antifalsification label 110 transmission, this label information is transferred to rfid interrogator 121, the label information received due to antenna 123 is the radiofrequency signal obtained after RFID antifalsification label 110 is modulated, therefore after rfid interrogator 121 receives the radiofrequency signal corresponding to label information of antenna 123 transmission, the radiofrequency signal that this label information is corresponding is demodulated, recover original label information, and the label information after demodulation is transferred to the true and false judges device 130, the true and false judge the comparison element 132 in device 130 can receive rfid interrogator 121 transmission demodulation after label information, additionally, comparison element 132 also can according to the label information after the demodulation received from the preset numbers reading the consumptive material corresponding with the label information after above-mentioned demodulation in memory element 131, and the preset numbers of the numbering of the consumptive material included by the label information after above-mentioned demodulation and the consumptive material read from memory element 131 compares, judge that whether the numbering of the consumptive material that the label information after above-mentioned demodulation includes is consistent with the preset numbers of the consumptive material of storage in memory element 131, if the numbering of the consumptive material that the label information after above-mentioned demodulation includes is consistent with the preset numbers of the consumptive material of storage in memory element 131, then judge that this consumptive material is genuine piece, if the numbering of the consumptive material that the label information after above-mentioned demodulation includes is inconsistent with the preset numbers of the consumptive material of storage in memory element 131, then judge that this consumptive material is fake and forged, here it is the comparison result that comparison element 132 draws, comparison result obtained above is transferred to encryption devices 140 by comparison element 132, by encryption devices 140, this comparison result is encrypted, and the comparison result after encryption is transferred to false proof manager 150.
Wherein, it is being transferred in this process of rfid interrogator 121 loss of energy from antenna 123 in order to reduce radiofrequency signal corresponding to above-mentioned label information, the radiofrequency signal that above-mentioned label information is corresponding is enable all to be transferred to rfid interrogator 121, do not have radiofrequency signal to reflect, need the impedance between antenna 123 with rfid interrogator 121 is mated, therefore, the above-mentioned consumptive material false proof device based on RFID also includes radio frequency matching circuit；
Radio frequency matching circuit is connected with antenna 123 and rfid interrogator 121 respectively, the impedance of the impedance of antenna 123 with rfid interrogator 121 is mated.
In signals transmission, need to match between load impedance and information source internal resistance, in this utility model embodiment, radiofrequency signal corresponding to label information is as a kind of signal, it is transferred to rfid interrogator 121 from antenna 123, input and the antenna 123 of radio frequency matching circuit connect, outfan and the rfid interrogator 121 of radio frequency matching circuit connect, therefore, the impedance of antenna 123 is the information source internal resistance of radio frequency matching circuit, the impedance of rfid interrogator 121 is the load impedance of radio frequency matching circuit, resistance between above-mentioned information source internal resistance and load impedance can be mated by radio frequency matching circuit, the impedance of rfid interrogator 121 and the impedance of antenna 123 is made to reach specific matching relationship, so can reduce the loss of energy in transmitting procedure of above-mentioned label information, make label information all can be transferred to rfid interrogator 121.
Wherein, as an embodiment, above-mentioned radio frequency matching circuit includes:
Bonder and LC (capacitor and inductor) filter circuit；
Bonder is connected with antenna 123 and LC filter circuit respectively, and LC filter circuit is connected with rfid interrogator 121, the impedance of the impedance of rfid interrogator 121 with antenna 123 is mated.
In this utility model embodiment, radio frequency matching circuit includes bonder and LC filter circuit, wherein, LC filter circuit includes electric capacity and inductance, rfid interrogator 121 is connected with LC filter circuit, the impedance of rfid interrogator 121 can be adjusted so that the matches impedances of the impedance of rfid interrogator 121 and antenna 123 by LC filter circuit.
Wherein, the LC filter circuit in above-mentioned radio frequency matching circuit includes electric capacity and inductance, in series or in parallel by above-mentioned electric capacity and inductance, forms resistive degeneration effect, so that the matches impedances between the impedance of above-mentioned rfid interrogator 121 and antenna 123.
Wherein, the physical circuit figure of above-mentioned radio frequency matching circuit is as shown in Figure 4.This radio frequency matching circuit includes: bonder the 401, first electric capacity 402, inductance 403 and the second electric capacity 404, the input of above-mentioned bonder 401 is connected with antenna 123, the outfan of bonder 401 is in parallel with above-mentioned first electric capacity 402, and connect with above-mentioned inductance 403, in parallel with the second electric capacity 404 again, and inductance 403 is also connected with rfid interrogator 121, the impedance of rfid interrogator 121 so can be reduced.
Wherein, above-mentioned first electric capacity 402 and the second electric capacity 404 can be same electric capacity, it is also possible to for different electric capacity.
Above-mentioned Fig. 4 has been merely given as the circuit diagram of one of which radio frequency matching circuit, does not limit components and parts concrete in above-mentioned radio frequency matching circuit and its annexation.
Wherein, as an embodiment, the above-mentioned consumptive material false proof device based on RFID also includes power management components；
Power management components judges that device 130 and rfid interrogator 121 are connected respectively with power supply, the true and false, receives the electric energy of power delivery, and transmits electric energy and judge device 130 and rfid interrogator 121 to the true and false.
In this utility model embodiment, electric energy owing to receiving from power supply is alternating current, but this alternating current is not above-mentioned rfid interrogator 121 and the true and false judges the electric energy that needs when device 130 works, therefore, after above-mentioned power management components receives the alternating current of power delivery, it is unidirectional current by this AC conversion, is transmitted further to rfid interrogator 121 and the true and false judges device 130, judge that device 130 works for rfid interrogator 121 and the true and false.
Wherein, as an embodiment, above-mentioned rfid interrogator 121 includes signal conversion elements and transmitting element；
Signal conversion elements is connected with power management components and transmitting element, receives the current signal of power management components transmission, this current signal is converted into frequency electromagnetic waves, and transmits this frequency electromagnetic waves to transmitting element；
Transmitting element is connected with antenna 123, receives the frequency electromagnetic waves of signal conversion elements transmission, and transmits this frequency electromagnetic waves to antenna 123；
Antenna 123 is connected with RFID antifalsification label 110, receives the frequency electromagnetic waves of transmitting element transmission, this frequency electromagnetic waves is broadcast to RFID antifalsification label 110.
In this utility model embodiment, signal conversion elements is connected with power management components, receive the current signal of power management components transmission, and by this current signal modulation on frequency electromagnetic waves, so, the current signal received is converted to frequency electromagnetic waves by signal conversion element, and this frequency electromagnetic waves is transferred to transmitting element, after transmitting element receives the frequency electromagnetic waves of signal conversion element transmission, this frequency electromagnetic waves is transferred to antenna 123, after antenna 123 receives the frequency electromagnetic waves of transmitting element transmission, this frequency electromagnetic waves is broadcast to RFID antifalsification label 110, after RFID antifalsification label 110 receives the frequency electromagnetic waves of antenna 123 broadcast, this frequency electromagnetic waves is converted to DC voltage and electric current by the radio circuit in RFID antifalsification label 110, work for RFID antifalsification label 110.
Wherein, above-mentioned RFID antifalsification label 110 is passive label, rfid interrogator 121 is needed to transmit electric energy to RFID antifalsification label 110, just can be operated, and rfid interrogator 121 is converted to frequency electromagnetic waves from the current signal that power management components receives by above-mentioned signal conversion elements is transferred to RFID antifalsification label 110, it is exactly providing electric energy to RFID antifalsification label 110, for its work.
Above-mentioned FRID label information sampler 120 also includes directional coupler, this directional coupler is connected with transmitting element, carrier wave straining element 122 and antenna 123 respectively, receive the frequency electromagnetic waves of transmitting element transmission, and transmit this frequency electromagnetic waves to antenna 123, and the radiofrequency signal corresponding to label information of reception antenna 123 transmission, and transmit this radiofrequency signal to carrier wave straining element 122.
Wherein, above-mentioned directional coupler is a kind of for carrying out the device isolated, separate and mix to the received signal.
The consumptive material false proof device based on RFID that this utility model embodiment provides, device, encryption devices and false proof manager is judged including RFID antifalsification label, FRID label information sampler, the true and false, wherein, RFID antifalsification label has uniqueness, it is difficult to be cracked and replicate, it is possible to effectively prevent from disguising oneself as counterfeit and shoddy goods genuine piece.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (9)
1. the consumptive material false proof device based on radio frequency discrimination RFID, it is characterised in that including: RFID antifalsification label, FRID label information sampler, the true and false judge device, encryption devices and false proof manager；
With described RFID antifalsification label and the described true and false, described FRID label information sampler judges that device is connected respectively, gather the label information that described RFID antifalsification label includes, and transmits described label information and judge device to the described true and false；
The described true and false judges that device is connected with described encryption devices, receives the label information of described FRID label information sampler transmission, judges the true and false according to described label information, obtains judged result, and transmits described judged result to described encryption devices；
Described encryption devices is connected with described false proof manager, receives the described true and false and judges the judged result of device transmission, described judged result is encrypted, and transmits the judged result after encryption to described false proof manager.
2. device according to claim 1, it is characterised in that described FRID label information sampler includes: rfid interrogator, carrier wave straining element and antenna；
Described antenna is connected with described RFID antifalsification label and described carrier wave straining element respectively, receives the label information of described RFID antifalsification label transmission, and transmits described label information to described carrier wave straining element；
Described carrier wave straining element is connected with described rfid interrogator, receives the label information of described antenna transmission, and transmits described label information to described rfid interrogator；
With the described true and false, described rfid interrogator judges that device is connected, receive described carrier wave straining element transmission label information, and transmit described label information give the described true and false judge device.
3. device according to claim 2, it is characterised in that the described true and false judges that device includes: memory element and comparison element；
Described comparison element is connected with described memory element and described rfid interrogator respectively, receive the label information of described rfid interrogator transmission, and read the preset numbers of the consumptive material corresponding with described label information of storage in described memory element, the preset numbers of described label information Yu described consumptive material is compared, obtains comparison result；
Described comparison element is connected with described encryption devices, transmits described comparison result to described encryption devices.
4. device according to claim 2, it is characterised in that described device also includes radio frequency matching circuit；
Described radio frequency matching circuit is connected with described antenna and described rfid interrogator respectively, the impedance of the impedance of described antenna with described rfid interrogator is mated.
5. device according to claim 4, it is characterised in that described radio frequency matching circuit includes: bonder and inductance capacitance LC filter circuit；
Described bonder is connected with described antenna and described LC filter circuit respectively, and described LC filter circuit is connected with described rfid interrogator, the impedance of the impedance of described rfid interrogator with described antenna is mated.
6. device according to claim 2, it is characterised in that described device also includes power management components；
With power supply, the described true and false, described power management components judges that device and described rfid interrogator are connected respectively, receive the electric energy of described power delivery, and transmits described electric energy and judge device and described rfid interrogator to the described true and false.
7. device according to claim 6, it is characterised in that described rfid interrogator includes signal conversion elements and transmitting element；
Described signal conversion elements is connected with described power management components and described transmitting element, receives the current signal of described power management components transmission, described current signal is converted into frequency electromagnetic waves, and transmits described frequency electromagnetic waves to described transmitting element；
Described transmitting element is connected with described antenna, receives the frequency electromagnetic waves of described signal conversion elements transmission, and transmits described frequency electromagnetic waves to described antenna；
Described antenna is connected with described RFID antifalsification label, receives the frequency electromagnetic waves of described transmitting element transmission, described frequency electromagnetic waves is broadcast to described RFID antifalsification label.
8. device according to claim 2, it is characterised in that described FRID label information sampler includes multiple antenna；
The plurality of antenna is distributed in around the consumptive material containing RFID antifalsification label.
9. device according to claim 1, it is characterised in that the connection of described encryption devices and described false proof manager is that communication interface connects or wireless network connects.
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| CN108090527A (en) * | 2016-11-22 | 2018-05-29 | 北京计算机技术及应用研究所 | The anti-fake method of consumptive material is carried out using radio frequency identification |
| CN108256368A (en) * | 2016-12-28 | 2018-07-06 | 航天信息股份有限公司 | The generation method and device of two-port network |
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| CN112488728A (en) * | 2019-08-22 | 2021-03-12 | 佛山市顺德区美的饮水机制造有限公司 | Anti-counterfeiting identification method and device for consumable and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108090527A (en) * | 2016-11-22 | 2018-05-29 | 北京计算机技术及应用研究所 | The anti-fake method of consumptive material is carried out using radio frequency identification |
| CN108256368A (en) * | 2016-12-28 | 2018-07-06 | 航天信息股份有限公司 | The generation method and device of two-port network |
| CN108256368B (en) * | 2016-12-28 | 2021-10-26 | 航天信息股份有限公司 | Method and device for generating dual-port network |
| CN109951429A (en) * | 2017-12-21 | 2019-06-28 | 珠海纳思达企业管理有限公司 | Ink-cases of printers verification method, system and printer |
| CN112488728A (en) * | 2019-08-22 | 2021-03-12 | 佛山市顺德区美的饮水机制造有限公司 | Anti-counterfeiting identification method and device for consumable and electronic equipment |
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