CN107609625A - The processing unit of clown fish wireless identification tag - Google Patents
The processing unit of clown fish wireless identification tag Download PDFInfo
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- CN107609625A CN107609625A CN201710612636.5A CN201710612636A CN107609625A CN 107609625 A CN107609625 A CN 107609625A CN 201710612636 A CN201710612636 A CN 201710612636A CN 107609625 A CN107609625 A CN 107609625A
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Abstract
The present invention provides a kind of processing unit of clown fish wireless identification tag, including read write line, with the antenna of read write line communication connection, it is characterized in that, read write line is electrically connected with CPU, transmission circuit is provided with inside read write line, transmitter module is provided with inside transmission circuit, carrier cancellation circuit and receiving module, the input of transmitter module is electrically connected with modulation circuit, the output end of receiving module is electrically connected with demodulator circuit, carrier cancellation circuit is arranged between transmitter module and receiving module, antenna communication is connected with RF tag, the associativity of present treatment EM equipment module is high, module sets reasonable, working stability and equipment volume is small, the communication distance of wireless handheld devices is remote, the bit error rate is low, scope applicatory is wide.
Description
Technical field
The present invention relates to wireless identification tag processing unit, and in particular to a kind of processing unit of clown fish wireless identification tag.
Background technology
Radio RF recognition technology（Radio Frequency Identification, referred to as：RFID）It is that one kind is non-to connect
The automatic identification technology of touch, its general principle are to utilize radiofrequency signal and Space Coupling（Inductance or electromagnetic coupled）Or radar is anti-
The transmission characteristic penetrated, realize the automatic identification to being identified object.
RFID reader（RFID reader）Radio communication is carried out by antenna and RFID, it is possible to achieve right
The read or write operation of tag recognition code and internal storage data.Typical RFID reader includes RFID radio-frequency modules and (sent
Device and receiver), control unit and reader antenna.
In radio-frequency recognition system, electronic tag is also known as RF tag, transponder, data medium；Read write line is also known as read
Go out device, scanner, communicator, reader (depend on electronic tag whether can wireless rewrite data).Electronic tag is with readding
Read to realize (contactless) coupling in the space of radiofrequency signal, in coupling channel by coupling element between device, according to sequential relationship,
The transmission of realization, the exchange of data.
Such as, Chinese invention patent mandate document, Authorization Notice No. is prior art：The B of CN 102915459, according to the hair
Bright one side, it is proposed that a kind of RFID tag, including：Label antenna；And micro integrated circuit, with the label
Antenna two-way signaling connects, wherein, the label antenna can realize that contactless data are read with a RF tag read-write equipment
Write, wherein, the micro integrated circuit identifies the radio frequency mark before operation is written and read with the RF tag read-write equipment
Sign the ID marks of read-write equipment and consult read-write standard with the RF tag read-write equipment.In addition, the invention also proposed
A kind of reading/writing method of RFID tag.The RFID tag and its reading/writing method of the invention may insure highly reliable
Card read/write and the efficiency for improving read-write, but in actual applications may phase during radio communication transmitting-receiving in the circuit of the invention
Mutually influence, be likely to result in information transfer error code.
The content of the invention
The present invention provides printed circuit plate surface in a kind of circuit module for solution above-mentioned technical problem and is provided with liquid photopolymerizable
Solder resist, effectively element can be avoided to influence each other, the electromagnetic field intensity of antenna is high and stably, and can effectively offset carrier wave leakage,
Improve a kind of processing unit of clown fish wireless identification tag of read-write accuracy and communication distance.
The present invention is for the scheme taken of solution above-mentioned technical problem：The processing unit of clown fish wireless identification tag, including
Read write line, the antenna with read write line communication connection, it is characterised in that read write line is electrically connected with CPU, and transmitting-receiving is provided with inside read write line
Circuit, the input of transmission circuit are electrically connected with modulation circuit, and the output end of transmission circuit is electrically connected with demodulator circuit, and antenna leads to
Letter is connected with RF tag, and the associativity of present treatment EM equipment module is high, and it is reasonable that module is set, working stability and equipment volume is small,
Radio communication is used between read write line and antenna and RF tag, reduces space limitation, improves being applicable for present treatment equipment
Region.
Preferably, transmission circuit includes transmitter module, carrier cancellation circuit and receiving module, the input of transmitter module
Electrically connected with modulation circuit, the output end of transmitter module electrically connects with carrier cancellation circuit, the output end of carrier cancellation circuit with
Receiving module is electrically connected, and carrier cancellation circuit is connected with antenna communication, and receiving module output end electrically connects with demodulator circuit, transmitting-receiving
Circuit can effectively realize the communication between antenna, and add carrier cancellation circuit, improve transmitter module and receiving module
Between isolation, it is anti-so as to reduce caused by the impedance between space reflection electromagnetic wave and antenna and RF tag
Influence of the ejected wave to transmission circuit, the ability that receiving module receives demodulation label information is significantly improved, it is accurate to improve information transfer
Rate, it can also reduce the energy loss in this equipment.
Preferably, carrier cancellation circuit includes signal input part, signal input part one end is connected with transmitter module, signal
The input other end is electrically connected with the input of coupler I, and the output end of coupler I is electrically connected with circulator, three-phase phase shifting device,
Circulator is connected with antenna communication, and circulator output end is electrically connected with coupler II, and the output end of three-phase phase shifting device is electrically connected with
Attenuator, attenuator are electrically connected with coupler II, and coupler II is electrically connected with signal output part, signal output part and receiving module
Electrical connection, coupler I is identical with the circuit form of coupler II, but acts on difference, and the work of coupler I is from transmitter module coupling
The radiofrequency signal of some strength is closed out, equivalent to power divider, the work of coupler II is to believe the radio frequency of attenuator output
Number transmission signal revealed with the signal and circulator of the antenna-reflected of circulator receiving terminal is superimposed, equivalent to power combiner,
Three-phase phase shifting utensil has certain fine pahse regulating power, can realize that the radiofrequency signal realization exported to coupler I is close
180 ° of phase shift, significantly improves carrier cancellation effect, and attenuator can not only find the amplitude cancellation point of optimum efficiency, can also carry
The adaptability of high carrier cancellation circuit, influence of the isolation difference of different model circulator to carrier cancellation effect is avoided,
Carrier cancellation circuit is effectively offset the phenomenon for avoiding the easy saturation of receiving module leading portion, so as to improve the channel radio of this equipment
Communication distance, also reduce the bit error rate of signal transmission.
Preferably, the printed circuit board in read write line is not required to be coated with liquid photopolymerizable welding resistance on the circuit and base material of welding
Agent, liquid photopolymerizable solder resist are made up of following component and parts by weight：Gathering containing 49 ~ 63 parts of carboxy resin, light without aromatic rings
3 ~ 8 parts of initiator of conjunction, 0.15 ~ 0.37 part of organic-silicon-modified polyacrylate, 6 ~ 15 parts of epoxide, erucyl amide 0.06 ~
0.12 part, 4 ~ 10 parts of Titanium Dioxide Rutile Top grade, 20 ~ 70 parts of silica granule, described without aromatic rings containing carboxy resin is fat
Fat race unsaturated carboxylic acid is 50 ~ 173mgKOH/g with acid number obtained from the aliphatic polymerisable monomer copolymerization of carbon number 7 ~ 26
Contain carboxy resin, the Photoepolymerizationinitiater initiater is camphorquinone, triethanolamine or N methyldiethanol amine, to Dimethylaminobenzene first
One or more in acetoacetic ester, the epoxide are the epoxide of aliphatic or heterocycle, liquid photopolymerizable solder resist
With high-insulativity, short circuit between component can be effectively prevented, and also scolding tin can be prevented to be attached on the copper cash that need not be welded,
Both the waste of scolding tin had been reduced, by the wiring layer in printed board can be protected, liquid light is coated on the printed circuit board of read write line
Cause solder resist, can be formed after drying process effectively protection printed circuit board soldering-resistance layer, organic-silicon-modified polyacrylate and
The addition of erucyl amide can not only effectively improve the insulating properties of liquid photopolymerizable solder resist, can also strengthen its adhesive force, effectively reduce
There is solder mask separation, crack or lamination on printed circuit board, improve the chemical resistance of liquid photopolymerizable solder resist, make its
It is more stable using process, the service behaviour of read write line is improved, is improved and wireless identification tag communication capacity, the resistance of this liquid photopolymerizable
Solder flux also has good heat endurance, avoids welding process from influenceing the stabilization of solder resist, and also have excellent film forming and resistance to
Contamination, the coating requirement to printed circuit board can be reduced, reduce treatment process, can also avoid spot from adhering to, improve printing electricity
The security performance of road plate.
Preferably, antenna is shaped as class rectangle and circular arc combination shape, antenna left arc is in have with class rectangle side
There is the upwarp state of angle α, antenna right circular arc is in the state that has a downwarp for having with class rectangle side angle α, and the angle of angle α is
38 ° ~ 49 °, the vertical range on the side of circular arc peak and class rectangle is L, and distance L values are 11 ~ 18mm, the copper pipe used in antenna 3
A diameter of 12 ~ 16mm, circular arc have the state for upwarping and having a downwarp so that antenna is not limited to a certain plane, avoids radio frequency mark
Label cause the position of RF tag and magnetic line of force direction to be in the situation of parastate when being in antenna both sides, so that antenna
It is small by Position disturbance with RF tag, preferable directionality can be always maintained at, significantly improves the read-write effect of present treatment device
The value of copper pipe used in the vertical range and antenna on the side of fruit, circular arc peak and class rectangle is respectively provided with certain limit so that day
The inductance value of line can have a higher value in actual use process, and the change of magnetic field strength around antenna is relatively slow so that with it is same
The wireless transmission distance of the squaerial of specification is compared, and the effective propagation path of present processor improves 11 ~ 21%, increases this
The communication range of processor, distance and the setting of copper pipe diameter range can also lift magnetic field stability, improve the standard of read-write operation
True property.
Preferably, filter circuit is also associated between transmission circuit and demodulator circuit, transmission circuit output end and filtering
Circuit input end electrically connects, and filter circuit output end electrically connects with demodulator circuit input, and filter circuit is active bandpass filiter
Circuit, the passband multiplication factor and cut-off frequency of active bandpass filiter circuit can effectively filter out transmission circuit not by load effect
The clutter and carrier wave of output, reception signal is proposed, reduce the influence of environmental factor and circuit oneself factor, and then improved signal and read
The accuracy taken.
Preferably, the input of modulation circuit is electrically connected with the output of carrier generation circuit and modulated signal generative circuit
End, the carrier frequency of carrier generation circuit generation is 2.3GHz ~ 3.1GHz, and its higher wavelength of frequency of radio wave is shorter, around
It is weaker to penetrate ability, but its penetration capacity is stronger, therefore frequency is higher in spacious environment, the transmission range of ripple is longer, but considers
The practical application of present treatment equipment, according to the loss formula of ripple：Ls=15Lgf(MHz)+15Lgd(Km)+4/fd（Ls in formula
For ripple loss of energy, f is the frequency of ripple, and d is the propagation distance of ripple）, can be drawn by formula, when the energy loss for wanting controls ripple
When in certain limit value, if take the frequency of ripple higher f values, its d value is smaller therefore the transmission range of ripple is shorter, diffraction energy
Power is weaker；If take transmission range d values farther out, its f value is smaller therefore the frequency of ripple is relatively low, and penetration capacity is weak, the generation of this carrier wave
The carrier frequency of circuit evolving has certain scope so that the diffracting power and penetration capacity of ripple have optimal suitability
Can, avoid ripple from running into barrier and be directed through, so as to ensure that ripple has good diffracting power, and reduce in ripple communication process
Energy loss, the transmission range of ripple is improved, so as to improve the communication distance of present treatment equipment.
Preferably, to be detachably connected between transmission circuit and modulation circuit and demodulator circuit, being detachably connected makes receipts
Do not integrated mutually between Power Generation Road and modulation circuit and demodulator circuit, it is each more better than integrated circuit so as to unrestricted choice performance
Individual module, make present treatment equipment that there is the component that performance is more preferable, more powerful, significantly improve the modularity of present treatment equipment
Can be with the reading/writing distance of wireless signal.
Compared with prior art, beneficial effects of the present invention are:1）Printed circuit plate surface is provided with liquid light in read write line
Solder resist is caused, can effectively reduce short circuit phenomenon, and avoids influenceing between each component, welding density is improved, improves printing
The anticorrosion antiwear performance of circuit board；2）Carrier cancellation circuit can effectively offset carrier wave leakage, improve information transfer accuracy rate and reading
Write distance；3）The carrier frequency of carrier generation circuit generation is suitable, ensure that ripple has longer transmission range, improves this place
Manage the communication distance of equipment；4）Antenna in present treatment device has stronger electromagnetic field, and attenuation strength delays, and can dramatically increase
Communication distance and communication stability between processor and wireless identification tag；4）Present treatment equipment volume integrated level is high, working stability,
And module is detachably connected, composed piece freedom is improved, reduces the bit error rate, improves wireless transmission distance.
Present invention employs the processing unit that above-mentioned technical proposal provides clown fish wireless identification tag, prior art compensate for
Deficiency, it is reasonable in design, it is easy to operate.
Brief description of the drawings
Fig. 1 is the RFID system composition of the processing unit of clown fish wireless identification tag of the present invention；
Fig. 2 is the top view of the antenna of the processing unit of clown fish wireless identification tag of the present invention；
Fig. 3 is the front view of the antenna of the processing unit of clown fish wireless identification tag of the present invention；
Fig. 4 is the right view of the antenna of the processing unit of clown fish wireless identification tag of the present invention；
Fig. 5 is the composition frame chart of the processing unit of the processing unit of clown fish wireless identification tag of the present invention；
Fig. 6 is the structure chart of the carrier cancellation circuit of the processing unit of clown fish wireless identification tag of the present invention；
Fig. 7 is a kind of circuit mechanism figure of preferred embodiment of the processing unit of clown fish wireless identification tag of the present invention.
Description of reference numerals：1 CPU；2 read write lines；3 antennas；4 RF tags；5 transmission circuits；6 signal output parts；7 three
Phase phase shifter；8 transmitter modules；9 carrier cancellation circuits；10 receiving modules；11 modulation circuits；12 filter circuits；13 carrier waves generate
Circuit；14 modulated signal generative circuits；15 demodulator circuits；16 couplers II；17 circulators；18 receive integration module；19 transmittings
Integration module；20 phase-locked loop circuits；21 digital signal processing modules；22 circuit system modules；23 signal input parts；24 couplers I；25
Attenuator.
Embodiment
It is described in further detail below in conjunction with drawings and examples：
Embodiment 1：
As shown in Fig. 1 ~ 6, the processing unit of clown fish wireless identification tag, including read write line 2, the antenna communicated to connect with read write line 2
3, it is characterised in that read write line 3 is electrically connected with CPU1, and the inside of read write line 2 is provided with transmission circuit 5, the input electricity of transmission circuit 5
Modulation circuit 11 is connected with, the output end of transmission circuit 5 is electrically connected with demodulator circuit 15, and the communication link of antenna 3 is connected to RF tag
4, the associativity of present treatment EM equipment module is high, and it is reasonable that module is set, working stability and equipment volume is small, read write line 2 and antenna 3 and
Radio communication is used between RF tag 4, reduces space limitation, improves the suitable application region of present treatment equipment.
Transmission circuit 5 includes transmitter module 8, carrier cancellation circuit 9 and receiving module 10, the input of transmitter module 8 with
Modulation circuit 11 electrically connects, and the output end of transmitter module 8 electrically connects with carrier cancellation circuit 9, the output end of carrier cancellation circuit 9
Electrically connected with receiving module 10, carrier cancellation circuit 9 communicates to connect with antenna 3, the output end of receiving module 10 and demodulator circuit 15
Electrical connection, transmission circuit 5 can effectively realize the communication between antenna 3, and add carrier cancellation circuit 9, improve transmitting
Isolation between module 8 and receiving module 10, so as to reduce between space reflection electromagnetic wave and antenna and RF tag
Impedance caused by influence of the back wave to transmission circuit 5, significantly improve receiving module receive demodulation label information energy
Power, information transfer accuracy rate is improved, can also reduce the energy loss in this equipment.
Carrier cancellation circuit 9 includes signal input part 23, and the one end of signal input part 23 is connected with transmitter module 8, and signal is defeated
Enter the input that 23 other ends of end are electrically connected with coupler I 24, the output end of coupler I 24 is electrically connected with circulator 17, three-phase
Phase shifter 7, circulator 17 communicate to connect with antenna 3, and the output end of circulator 17 is electrically connected with coupler II 16, three-phase phase shifting device 7
Output end be electrically connected with attenuator 25, attenuator 25 is electrically connected with coupler II 16, and it is defeated that coupler II 16 is electrically connected with signal
Go out end 6, signal output part 6 electrically connects with receiving module 10, and coupler I 24 is identical with the circuit form of coupler II 16, but makees
With difference, the work of coupler I 24 is that the radiofrequency signal of some strength is coupled out from transmitter module 8, equivalent to power divider,
The work of coupler II 16 be the signal that the antenna 3 for the radiofrequency signal and receiving terminal of circulator 17 for exporting attenuator 25 reflects and
The transmission signal superposition that circulator 17 is revealed, equivalent to power combiner, there is three-phase phase shifting device 7 certain fine pahse to adjust
Ability, the phase shift realized to the radiofrequency signal that coupler I 24 exports close to 180 ° can be realized, significantly improves carrier cancellation effect
Fruit, attenuator 25 can not only find the amplitude cancellation point of optimum efficiency, can also improve the adaptability of carrier cancellation circuit 9, keep away
Exempt from influence of the isolation difference of different model circulator 17 to carrier cancellation effect, carrier cancellation circuit 9, which is effectively offset, to be kept away
Exempt from the phenomenon of the easy saturation of receiving module leading portion, so as to improve the wireless communication distance of this equipment, also reduce signal transmission
The bit error rate.
Printed circuit board in read write line 2 is not required to be coated with liquid photopolymerizable solder resist, liquid on the circuit and base material of welding
Photic solder resist is made up of following component and parts by weight：Contain 53 parts of carboxy resin, Photoepolymerizationinitiater initiater 4 without aromatic rings
Part, 0.26 part of organic-silicon-modified polyacrylate, 11 parts of epoxide, 0.11 part of erucyl amide, Titanium Dioxide Rutile Top grade 8
Part, 36 parts of silica granule, described without aromatic rings is aliphatic unsaturated carboxylic acid and carbon number 25 containing carboxy resin
Acid number obtained from the copolymerization of aliphatic polymerisable monomer contains carboxy resin for 80mgKOH/g, and the Photoepolymerizationinitiater initiater is camphor tree
One or more in brain quinone, triethanolamine or N methyldiethanol amine, (dimethylamino)-ethyl benzoate, the epoxy compound
Thing is the epoxide of aliphatic or heterocycle, and liquid photopolymerizable solder resist has high-insulativity, can effectively be prevented between component
Short circuit, and also scolding tin can be prevented to be attached on the copper cash that need not be welded, both reduce the waste of scolding tin, by printed board can be protected
On wiring layer, on the printed circuit board of read write line coat liquid photopolymerizable solder resist, effective guarantor can be formed after drying process
The soldering-resistance layer of printed circuit board is protected, the addition of organic-silicon-modified polyacrylate and erucyl amide can not only effectively improve liquid light
The insulating properties of solder resist is caused, can also strengthen its adhesive force, is effectively reduced and solder mask separation, crack on printed circuit board is occurred or divide
Layer phenomenon, the chemical resistance of liquid photopolymerizable solder resist is improved, it is more being stablized using process, improve the work of read write line 2
Make performance, improve also has good heat endurance, avoid welding with wireless identification tag communication capacity, this liquid photopolymerizable solder resist
Process influences the stabilization of solder resist, and also has excellent film forming and stain resistance, and the coating that can be reduced to printed circuit board will
Ask, reduce treatment process, can also avoid spot from adhering to, improve the security performance of printed circuit board.
Antenna 3 is shaped as class rectangle and circular arc combination shape, and the left arc of antenna 3 is in have angle α with class rectangle side
Upwarp state, the right circular arc of antenna 3 is in have the state that has a downwarp of angle α with class rectangle side, and the angle of angle α is 40 °, circular arc
The vertical range on the side of peak and class rectangle is L, and distance L values are 14mm, a diameter of 13mm of copper pipe used in antenna 3, circular arc
With the state for upwarping and having a downwarp so that antenna 3 is not limited to a certain plane, when avoiding RF tag 4 and being in antenna both sides
The position of RF tag and magnetic line of force direction is caused to be in the situation of parastate, so that antenna 3 and RF tag 4 are by position
It is small to put interference, preferable directionality can be always maintained at, significantly improve the read-write effect of present treatment device, circular arc peak with
The value of copper pipe used in the vertical range and antenna 3 on the side of class rectangle is respectively provided with certain limit so that the inductance value of antenna 3 can
There is higher value in actual use process, and the change of magnetic field strength around antenna is relatively slow so that the squaerial with same specification
Wireless transmission distance compare, the effective propagation path of present treatment device improves 11 ~ 21%, increases the logical of present treatment device
Believe scope, distance and the setting of copper pipe diameter range can also lift magnetic field stability, improve the accuracy of read-write operation.
Filter circuit 12, the output end of transmission circuit 5 and filter circuit are also associated between transmission circuit 5 and demodulator circuit 15
12 inputs electrically connect, and the output end of filter circuit 12 electrically connects with the input of demodulator circuit 15, and filter circuit 12 is active band logical
Filter circuit, the passband multiplication factor and cut-off frequency of active bandpass filiter circuit can effectively filter out transmitting-receiving not by load effect
The clutter and carrier wave that circuit 5 exports, reception signal is proposed, reduce the influence of environmental factor and circuit oneself factor, and then improve
The accuracy of signal-obtaining.
The input of modulation circuit 11 is electrically connected with the output end of carrier generation circuit 13 and modulated signal generative circuit 14,
The carrier frequency that carrier generation circuit 13 generates is 2.45GHz, and its higher wavelength of frequency of radio wave is shorter, and diffracting power is got over
It is weak, but its penetration capacity is stronger, therefore frequency is higher in spacious environment, the transmission range of ripple is longer, but is set in view of present treatment
Standby practical application, according to the loss formula of ripple：Ls=15Lgf(MHz)+15Lgd(Km)+4/fd（Ls is lost for ripple in formula
Energy, f are the frequency of ripple, and d is the propagation distance of ripple）, can be drawn by formula, when wanting the energy loss of controls ripple in certain model
When enclosing in value, if take the frequency of ripple higher f values, its d value is smaller therefore the transmission range of ripple is shorter, and diffracting power is weaker；If
When taking transmission range d values farther out, its f value is smaller therefore the frequency of ripple is relatively low, and penetration capacity is weak, and this carrier generation circuit 13 is given birth to
Into carrier frequency there is certain scope so that the diffracting power and penetration capacity of ripple have optimal Adapter Property, avoid
Ripple runs into barrier and is directed through, and so as to ensure that ripple has good diffracting power, and reduces the energy damage in ripple communication process
Consumption, the transmission range of ripple is improved, so as to improve the communication distance of present treatment equipment.
To be detachably connected between transmission circuit 5 and modulation circuit 11 and demodulator circuit 15, being detachably connected makes transmitting-receiving electric
Do not integrated mutually between road 5 and modulation circuit 11 and demodulator circuit 15, so as to unrestricted choice performance more better than integrated circuit
Modules, make present treatment equipment that there is the component that performance is more preferable, more powerful, significantly improve the module of present treatment equipment
The reading/writing distance of performance and wireless signal.
The prior art of routine techniques dawn known to those skilled in the art in the present embodiment, is not chatted in detail herein
State.
Embodiment 2：
As shown in Figure 6,7, the processing unit of clown fish wireless identification tag, a kind of preferable circuit mechanism figure, antenna during real work
3 one end receive radiofrequency signal and to spatial emission radiofrequency signal from space, the other end and the circulator 17 in carrier cancellation circuit 9
It is connected, circulator 17 is used for the time division multiplexing for realizing radiofrequency signal, passes through coupler I 24 and coupler II 16 and transmitting respectively
Integration module 19 and receive integration module 18 couple, transmitting integration module 19 include power amplifier, variable gain amplifier 1,
Modulator and DAC digital analog converters, when carrying out write operation, data signal that digital signal processing module 21 is exported, turn by digital-to-analogue
Change, modulate, signal is passed to by circulator 17 by coupler I after gain amplification and power amplification, circulator 17 passes signal
Antenna 3 is passed, finally sending signal by antenna 3 passes to RF tag 4；Receiving integration module 18 includes wave filter 1, lower change
Frequency device, wave filter 2, variable gain amplifier 2 and ADC analog-digital converters, when carrying out read operation, circulator 17 is by antenna 3
The signal received passes to wave filter 1 by coupler II, is transmitted after downconverted, filtering, gain amplification and analog-to-digital conversion
Handled to digital signal processing module 21, and the data signal after modulation is passed into PC ends and DAC digital analog converters, this circuit
In be provided with phase-locked loop circuit 20, local oscillator needed for exportable wireless identification tag processing equipment, wherein phase discriminator input is connected with one
Individual constant-temperature crystal oscillator, voltage controlled oscillator output end are connected with buffer, and the frequency variation signal that can export phase-locked loop circuit 20 is buffered
Afterwards, low-converter or modulator are transmitted further to.
The angle of angle α is not limited only to 38 ° ~ 49 °, should also include 38 ° or 38.1 ° or 38.2 ° or 38.3 ° or
38.4 ° ... or 48.9 ° or 49 °.
The vertical range on the side of circular arc peak and class rectangle is L, and distance L values are not limited only to 11 ~ 18mm, should also included
11mm or 11.1mm or 11.2mm or 11.3mm or 11.4mm ... or 17.9mm or 18mm.
Copper pipe diameter used in antenna 3 is not limited only to 12 ~ 16mm, should also include 12mm or 12.1mm or 12.2mm or
12.3mm or 12.4mm ... or 15.9mm or 16mm.
Carrier generation circuit 13 generate carrier frequency be not limited only to 2.3GHz ~ 3.1GHz, should also include 2.3GHz or
2.31GHz or 2.32GHz or 2.33GHz or 2.34GHz ... or 3.09GHz or 3.1GHz.
The voltage stabilizing circuit module in circuit system module 22, system, control circuit module and communication interface in the present embodiment
Circuit module etc. is existing conventional modules, the prior art of dawn known to those skilled in the art, is not described in detail herein.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, the ordinary skill people of this area
Member, without departing from the spirit and scope of the present invention, it can also make a variety of changes and modification.Therefore, it is all equivalent
Technical scheme fall within scope of the invention, scope of patent protection of the invention should be defined by the claims.
Claims (8)
1. the processing unit of clown fish wireless identification tag, including read write line（2）, with read write line（2）The antenna of communication connection（3）, its
It is characterised by, the read write line（3）It is electrically connected with CPU（1）, the read write line（2）Inside is provided with transmission circuit（5）, the receipts
Power Generation Road（5）Input be electrically connected with modulation circuit（11）, the transmission circuit（5）Output end be electrically connected with demodulator circuit
（15）, the antenna（3）Communication link is connected to RF tag（4）.
2. the processing unit of clown fish wireless identification tag according to claim 1, it is characterised in that the transmission circuit（5）
Including transmitter module（8）, carrier cancellation circuit（9）And receiving module（10）, the transmitter module（8）Input with modulation electricity
Road（11）Electrical connection, the transmitter module（8）Output end and carrier cancellation circuit（9）Electrical connection, the carrier cancellation circuit
（9）Output end and receiving module（10）Electrical connection, the carrier cancellation circuit（9）With antenna（3）Communication connection, the reception
Module（10）Output end and demodulator circuit（15）Electrical connection.
3. the processing unit of clown fish wireless identification tag according to claim 2, it is characterised in that the carrier cancellation circuit
（9）Including signal input part（23）, the signal input part（23）One end and transmitter module（8）Connection, the signal input part
（23）The other end is electrically connected with coupler I（24）Input, the coupler I（24）Output end be electrically connected with circulator
（17）, three-phase phase shifting device（7）, the circulator（17）With antenna（3）Communication connection, the circulator（17）Output end electrically connects
There is coupler II（16）, the three-phase phase shifting device（7）Output end be electrically connected with attenuator（25）, the attenuator（25）It is electrically connected
It is connected to coupler II（16）, the coupler II（16）It is electrically connected with signal output part（6）, the signal output part（6）With connecing
Receive module（10）Electrical connection.
4. the processing unit of clown fish wireless identification tag according to claim 1, it is characterised in that the read write line（2）In
Printed circuit board be not required to be coated with liquid photopolymerizable solder resist on the circuit and base material of welding, the liquid photopolymerizable solder resist by with
Lower composition and parts by weight composition：Changing containing 49 ~ 63 parts of carboxy resin, 3 ~ 8 parts of Photoepolymerizationinitiater initiater, organosilicon without aromatic rings
0.15 ~ 0.37 part of polyacrylate of property, 6 ~ 15 parts of epoxide, 0.06 ~ 0.12 part of erucyl amide, Titanium Dioxide Rutile Top grade 4 ~
10 parts, 20 ~ 70 parts of silica granule, described without aromatic rings containing carboxy resin is aliphatic unsaturated carboxylic acid and carbon number
Acid number obtained from 7 ~ 26 aliphatic polymerisable monomer copolymerization contains carboxy resin, the photopolymerization for 50 ~ 173mgKOH/g
Initiator is camphorquinone, triethanolamine or N methyldiethanol amine, the one or more in (dimethylamino)-ethyl benzoate, institute
Epoxide is stated as aliphatic or the epoxide of heterocycle.
5. wireless identification tag processor according to claim 1, it is characterised in that the antenna（3）Be shaped as class rectangle
Shape, the antenna are combined with circular arc（3）Left arc is in the upwarp state with class rectangle side with angle α, the antenna（3）
Right circular arc is in the state that has a downwarp for having with class rectangle side angle α, and the angle of the angle α is 38 ° ~ 49 °, the circular arc highest
Point and the vertical range on the side of class rectangle are L, and the distance L values are 11 ~ 18mm, the antenna（3）Copper pipe used is a diameter of
12~16mm。
6. the processing unit of clown fish wireless identification tag according to claim 1, it is characterised in that the transmission circuit（5）
With demodulator circuit（15）Between be also associated with filter circuit（12）, the transmission circuit（5）Output end and filter circuit（12）It is defeated
Enter end electrical connection, the filter circuit（12）Output end and demodulator circuit（15）Input electrically connects, the filter circuit（12）
For active bandpass filiter circuit.
7. the processing unit of clown fish wireless identification tag according to claim 1, it is characterised in that the modulation circuit（11）
Input be electrically connected with carrier generation circuit（13）With modulated signal generative circuit（14）Output end, carrier wave generation electricity
Road（13）The carrier frequency of generation is 2.3GHz ~ 3.1GHz.
8. the processing unit of clown fish wireless identification tag according to claim 1, it is characterised in that the transmission circuit（5）
With modulation circuit（11）And demodulator circuit（15）Between to be detachably connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612636.5A CN107609625B (en) | 2017-07-25 | 2017-07-25 | Processing apparatus of clown fish wireless tag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612636.5A CN107609625B (en) | 2017-07-25 | 2017-07-25 | Processing apparatus of clown fish wireless tag |
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| Publication Number | Publication Date |
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| CN107609625A true CN107609625A (en) | 2018-01-19 |
| CN107609625B CN107609625B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710612636.5A Active CN107609625B (en) | 2017-07-25 | 2017-07-25 | Processing apparatus of clown fish wireless tag |
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| CN108548246A (en) * | 2018-04-29 | 2018-09-18 | 航天慧能（江苏）环境工程有限公司 | Plasma fresh air system based on internet of things |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107609625B (en) | 2020-06-30 |
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