CN105827761B - Super high frequency radio frequency identification device and control method, device based on mobile phone - Google Patents
Super high frequency radio frequency identification device and control method, device based on mobile phone Download PDFInfo
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- CN105827761B CN105827761B CN201610350881.9A CN201610350881A CN105827761B CN 105827761 B CN105827761 B CN 105827761B CN 201610350881 A CN201610350881 A CN 201610350881A CN 105827761 B CN105827761 B CN 105827761B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
- G06K7/10376—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable
- G06K7/10386—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable the interrogation device being of the portable or hand-handheld type, e.g. incorporated in ubiquitous hand-held devices such as PDA or mobile phone, or in the form of a portable dedicated RFID reader
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
Abstract
The present invention provides a kind of super high frequency radio frequency identification device and control method, device based on mobile phone, and wherein super high frequency radio frequency identification device includes control unit, mobile phone receiving channel, handset emissions channel and antenna for mobile phone, frequency source；It further include RFID reception channel and the corresponding RFID antenna that signal of communication is identified for receiving and dispatching super high frequency radio frequency；Described control unit is selectively connect with the RFID reception channel or mobile phone receiving channel according to operating mode, and the RFID reception channel or mobile phone receiving channel pass through corresponding antenna reception signal of communication；The handset emissions channel sends signal of communication optionally by the RFID antenna or antenna for mobile phone according to operating mode, and described control unit controls the frequency source to modulate the signal of communication of designated frequency band by the handset emissions channel coding.A kind of portable super high frequency radio frequency identification handset products may be implemented in the present invention, small in size, low in cost.
Description
Technical field
The present invention relates to technical field of RFID more particularly to a kind of super high frequency radio frequency identification device based on mobile phone and
Control method, device.
Background technique
Super high frequency radio frequency identification technology have the characteristics that passive, non-contact, the service life is long, using convenient, as building Internet of Things
The key technology of net is concerned by people in recent years, is widely used in intelligent transportation, safety management, logistics information, movement
The fields such as payment.Based on the electronic tag of super high frequency radio frequency identification, hyperfrequency is necessarily dependent upon to the read-write of itself content and is penetrated
Frequency identification device has both the electronic device of super high frequency radio frequency identification function module to complete.Existing super high frequency radio frequency identification
Device is mainly fixed, but fixed super high frequency radio frequency identification device limits the range of radio frequency identification, therefore urgently
Wait need to develop a portable and low-cost super high frequency radio frequency identification handset products.
The fast development and extensive use of mobile communication technology are wirelessly answered so that using and popularizing for mobile phone is increasingly wider
With more and more, people is made to get rid of wired or short haul connection constraint.Mobile phone can connect by way of wirelessly or non-wirelessly
Super high frequency radio frequency identification function module to realize the feasibility and portability of radio frequency recognizing electronic label, but uses aforesaid way
There are volumes it is big, at high cost the defects of, be difficult really to realize portable inexpensive super high frequency radio frequency identification handset products,
This, which also becomes super high frequency radio frequency identification device, can not become one of a big bottleneck for mass consumption class product.
Summary of the invention
The purpose of the present invention is to provide a kind of super high frequency radio frequency identification device and control method, device based on mobile phone,
Solves the technical problem that super high frequency radio frequency identification device volume is big, at high cost in the prior art.
In order to solve the above-mentioned technical problem, a kind of super high frequency radio frequency identification based on mobile phone of the invention, including control are single
Member, mobile phone receiving channel, handset emissions channel and it is corresponding for the antenna for mobile phone of transmit-receive mobile phone signal of communication, for providing vibration
Swing the frequency source of signal；It further include RFID reception channel and the corresponding RFID that signal of communication is identified for receiving and dispatching super high frequency radio frequency
Antenna；
Described control unit is selectively connect with the RFID reception channel or mobile phone receiving channel according to operating mode,
The RFID reception channel or mobile phone receiving channel pass through corresponding antenna reception signal of communication；
The handset emissions channel sends according to operating mode optionally by the RFID antenna or antenna for mobile phone logical
Believe signal, described control unit controls the frequency source to modulate the communication of designated frequency band by the handset emissions channel coding
Signal.
As the further improvement of the above-mentioned super high frequency radio frequency identification device of the present invention, described control unit connects with the RFID
It receives and the first single-pole double-throw switch (SPDT), the first non-moving end of first single-pole double-throw switch (SPDT) is set between channel, mobile phone receiving channel
The RFID reception channel is connected, the second non-moving end of first single-pole double-throw switch (SPDT) connects the mobile phone receiving channel, institute
State the moved end connection described control unit of the first single-pole double-throw switch (SPDT)；
Second single-pole double-throw switch (SPDT) is set between the handset emissions channel and the RFID antenna, antenna for mobile phone, it is described
First non-moving end of the second single-pole double-throw switch (SPDT) sends signal of communication to the RFID antenna, second single-pole double-throw switch (SPDT)
Second non-moving end sends signal of communication to the antenna for mobile phone, and the moved end of second single-pole double-throw switch (SPDT) is sent out by the mobile phone
Penetrate channel reception signal of communication.
As the further improvement of the above-mentioned super high frequency radio frequency identification device of the present invention, the handset emissions channel with it is described
Power amplifier unit is provided between RFID antenna, the handset emissions channel sends super high frequency radio frequency identification by the power amplifier unit
Carrier signal, the power amplifier unit change control on-off according to the low and high level of modulated signal to realize that ASK is modulated.
As the further improvement of the above-mentioned super high frequency radio frequency identification device of the present invention, the RFID antenna, antenna for mobile phone with
Third single-pole double-throw switch (SPDT), the 4th single-pole double-throw switch (SPDT) be set between the RFID reception channel, mobile phone receiving channel, described the
First non-moving end of three single-pole double-throw switch (SPDT)s receives the signal of communication of the RFID antenna, and the of the third single-pole double-throw switch (SPDT)
Two non-moving ends receive the signal of communication of the antenna for mobile phone, and the moved end of the third single-pole double-throw switch (SPDT) and the 4th hilted broadsword are double
The moved end of throw switch connects, and the first non-moving end of the 4th single-pole double-throw switch (SPDT) connects the RFID reception channel, and described the
Second non-moving end of four single-pole double-throw switch (SPDT)s connects the mobile phone receiving channel.
As the further improvement of the above-mentioned super high frequency radio frequency identification device of the present invention, the RFID antenna connects with the RFID
It receives and directional coupler is set between channel, handset emissions channel, the first end of the directional coupler receives the handset emissions
The signal of communication that channel is sent, the second end of the directional coupler connect the RFID antenna, and the of the directional coupler
Three-polar output local oscillation signal is supplied to the RFID reception channel, and the 4th end of the directional coupler is logical to the RFID reception
Road is sent from the received signal of communication of the RFID antenna.
As the further improvement of the above-mentioned super high frequency radio frequency identification device of the present invention, the RFID reception channel is zero intermediate frequency
Receiver；The mobile phone receiving channel is superhet or low intermediate frequency receiver.
In order to solve the above-mentioned technical problem, a kind of radio frequency using on above-mentioned super high frequency radio frequency identification device of the invention is known
Sex control method includes the following steps:
Receive super high frequency radio frequency identification instruction；
It detects whether in mobile phone speech copper, if so, waiting voice data communication terminates；
It detects whether to connect in the period in mobile phone heartbeat, if so, heartbeat connection is waited to terminate；
It detects whether in data in mobile phone listening periods, if so, data interception is waited to terminate；
If above-mentioned testing result is all no, RFID reception channel reception super high frequency radio frequency identification signal of communication, handset emissions
Channel sends super high frequency radio frequency and identifies signal of communication.
As the further improvement of the above-mentioned radio frequency identification control method of the present invention, closed after receiving super high frequency radio frequency identification instruction
Data interception is closed, stopping detects whether in data in mobile phone listening periods.
In order to solve the above-mentioned technical problem, a kind of radio frequency using on above-mentioned super high frequency radio frequency identification device of the invention is known
Other control device, comprising:
Receiving unit, for receiving super high frequency radio frequency identification instruction；
Voice data communication unit is detected, for detecting whether in mobile phone speech copper, if so, waiting voice
Data communication terminates；
Heartbeat connection unit is detected, for detecting whether within the mobile phone heartbeat connection period, if so, waiting heartbeat connection knot
Beam；
Detection data listens to unit, for detecting whether in data in mobile phone listening periods, if so, waiting data interception knot
Beam；
When switch unit for judging above-mentioned testing result is all no, RFID reception channel reception super high frequency radio frequency is controlled
Identify signal of communication, handset emissions channel sends super high frequency radio frequency and identifies signal of communication.
As the further improvement of the above-mentioned radio-frequency identification control device of the present invention, the receiving unit receives super high frequency radio frequency
After identification instruction, data interception is closed, stops the detection data and listens to cell operation.
Compared with prior art, the present invention is close with the frequency point that super high frequency radio frequency identifies using the frequency point of mobile communication, leads to
It crosses and increases a small amount of circuit on mobile phone, share the main circuit of mobile phone, realize portable super high frequency radio frequency identification.The present invention can be with
Realize a kind of portable super high frequency radio frequency identification handset products, it is small in size, it is low in cost.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Detailed description of the invention
In order to illustrate more clearly of embodiment of the present invention or the technical solution of the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it is therefore apparent that the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the super high frequency radio frequency identification device schematic diagram based on mobile phone in an embodiment of the present invention.
Fig. 2 is the super high frequency radio frequency identification device schematic diagram based on mobile phone in an embodiment of the present invention.
Fig. 3 is to emit signal of communication time diagram in an embodiment of the present invention.
Fig. 4 is radio frequency identification control method flow chart in an embodiment of the present invention.
Fig. 5 is radio-frequency identification control device module map in an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to various embodiments shown in the accompanying drawings.But these embodiments are not
The limitation present invention, structure that those skilled in the art are made according to these embodiments, method or change functionally
It changes and is included within the scope of protection of the present invention.
It should be noted that in various embodiments, identical label or label may be used, but these not generations
Table structure or absolute connection relationship functionally.Also, " first " that is previously mentioned in each embodiment, " second ", " third ",
" the 4th " also not representative structure or absolute differentiation relationship functionally, these are merely for convenience of description.
Mobile phone is in GSM(Global System for Mobile Communication, global system for mobile communications) mould
Working frequency range when under formula is close with the working frequency range that super high frequency radio frequency identifies, specifically, the uplink band of China Mobile be
890MHz-909MHz, band downlink be in 935MHz-954MHz, the uplink band of China Unicom be in 909MHz-915MHz,
Band downlink be in 954MHz-960MHz, and the frequency range of the super high frequency radio frequency in China identification be in 840MHz-845MHz and
920MHz-925MHz.Mobile phone is similar to the working method that super high frequency radio frequency identifies, can be seen as radio receiving-transmitting unit, therefore
The hardware platform of hardware platform and the super high frequency radio frequency identification of mobile phone has similarity, and wherein some circuit can share.
Mobile phone is as portable handheld terminal, if designing the circuit that a kind of technical solution shares in mobile phone realizes that super high frequency radio frequency is known
Not, cost can be both saved in this way, while can also reduce occupied space.
As shown in Figure 1, the super high frequency radio frequency identification device schematic diagram in an embodiment of the present invention based on mobile phone.Based on hand
The super high frequency radio frequency identification device of machine includes control unit 11, mobile phone receiving channel 12, handset emissions channel 13, antenna for mobile phone
14, frequency source 15.Foregoing circuit composition is the original circuit of mobile phone, and antenna for mobile phone 14 is used for transmit-receive mobile phone signal of communication, frequency
Source 15 is that mobile phone receiving channel 12, handset emissions channel 13 provide oscillator signal, such as generate the load of designated frequency band according to control
Wave or coherent demodulation synchronization signal.Control unit 11 receives what base station was sent by mobile phone receiving channel 12, antenna for mobile phone 14
Signal of communication, control unit 11 send signal of communication to base station by handset emissions channel 13, antenna for mobile phone 14.
In order to realize super high frequency radio frequency identification function, the super high frequency radio frequency identification device based on mobile phone further includes RFID
(Radio Frequency Identification, radio frequency identification) receiving channel 16, RFID antenna 17.Because of super high frequency radio frequency
The transmit-receive cofrequency of identification, so the framework of RFID reception channel 16 and mobile phone receiving channel 12 is not quite alike, the reception of the two is logical
Road cannot share, and control unit 11 is guaranteed by gating switch while only receiving channel is used all the way.Mobile phone receiving channel
12 use superhet or low intermediate frequency receiver.RFID reception channel 16 uses zero intermediate frequency reciver, and RFID reception is logical
The demodulation mode that road 16 uses can be coherent demodulation or non-coherent demodulation, support ASK(Amplitude-Shift
Keying, amplitude shift keying) demodulation or PSK(Phase-Shift Keying, phase-shift keying (PSK)) demodulation, signal of communication is demodulated
Zero intermediate frequency signals afterwards carry out the data information being obtained in signal of communication after direct current, filter and amplification etc. are handled.RFID
Antenna 17 is for receiving and dispatching super high frequency radio frequency identification signal of communication, and in the present embodiment, RFID antenna 17 and antenna for mobile phone 14 are logical
It crosses gating switch guarantee while only antenna is used all the way.Antenna for mobile phone 14 is designed according to its communications band, hyperfrequency
If radio frequency identification signal of communication receives and dispatches the reduction that will necessarily bring performance using antenna for mobile phone 14.RFID reception channel 16 uses
The particularity of zero intermediate frequency reciver, the requirement to antenna is very high, and RFID antenna 17 uses dedicated antenna, and preferably port is stayed
For wave less than 1.15, RFID antenna does not use broad-band antenna preferably, because broad-band antenna is difficult compatible bandwidth, standing wave and gain
It is required that.
Control unit 11 is selectively connect with RFID reception channel 16 or mobile phone receiving channel 12 according to operating mode,
By corresponding antenna reception signal of communication, i.e. RFID reception channel 16 passes through for RFID reception channel 16 or mobile phone receiving channel 12
RFID antenna 17 receives radio frequency identification signal of communication, and mobile phone receiving channel 12 receives mobile communication signal by antenna for mobile phone 14.
In a particular embodiment, the first hilted broadsword is set between control unit 11 and RFID reception channel 16, mobile phone receiving channel 12
First non-moving end 1 of commutator 21, the first single-pole double-throw switch (SPDT) 21 connects RFID reception channel 16, the first single-pole double-throw switch (SPDT)
21 the second non-moving end 2 connects mobile phone receiving channel 12, and the moved end 3 of the first single-pole double-throw switch (SPDT) 21 connects control unit 11.Hand
Machine receiving channel 12 connects antenna for mobile phone 14, and RFID reception channel 16 receives signal of communication by RFID antenna 17.Work as Working mould
Formula is RFID mode, i.e., when reception super high frequency radio frequency identifies signal of communication, the first single-pole double-throw switch (SPDT) 21 is switched to by control
Moved end 3 and the first non-moving end 1 are connected, and control unit 11 can be received by RFID reception channel 16, RFID antenna 17 at this time
The data information that ultrahigh frequency electronic tag is fed back.When operating mode is handset mode, that is, receives mobile communication signal, the
One single-pole double-throw switch (SPDT) 21 is switched to moved end 3 and the second non-moving end 2 by control and is connected, and control unit 11 can pass through hand at this time
Machine receiving channel 12, antenna for mobile phone 14 receive the data information that base station feedback is returned.
Handset emissions channel 13 sends communication optionally by RFID antenna 17 or antenna for mobile phone 14 according to operating mode
Signal, control unit 11 control frequency source 15 to pass through the signal of communication of 13 coded modulation designated frequency band of handset emissions channel.?
In specific embodiment, the second single-pole double throw is set between handset emissions channel 13 and RFID antenna 17, antenna for mobile phone 14 and is opened
22 are closed, the first non-moving end 1 of the second single-pole double-throw switch (SPDT) 22 sends signal of communication, the second single-pole double-throw switch (SPDT) to RFID antenna 17
22 the second non-moving end 2 connects antenna for mobile phone 14, sends signal of communication to antenna for mobile phone 14, the second single-pole double-throw switch (SPDT) 22 moves
End 3 receives signal of communication by handset emissions channel 13, it is preferable that sends out in the moved end 3 of the second single-pole double-throw switch (SPDT) 22 and mobile phone
Setting power amplifier unit 18 between channel 13 is penetrated, handset emissions channel 13 connects the second single-pole double-throw switch (SPDT) 22 by power amplifier unit 18
Moved end 3.
When operating mode is RFID mode, i.e. handset emissions channel 13 launches outward super high frequency radio frequency by RFID antenna 17
Identify that signal of communication, the second single-pole double-throw switch (SPDT) 22 are switched to the first non-moving end 1 by control and are connected with moved end 3, at this time mobile phone
Transmission channel 13 identifies that standard is encoded according to super high frequency radio frequency, and controls frequency source 15 and generate the specified frequency range of standard, makes
It works in super high frequency radio frequency and identifies defined channel, signal of communication is formed by modulation, is launched by RFID antenna 17.It is super
The modulation system of high-frequency radio frequency identification is ASK modulation, and according to the principle that ASK is modulated, the generation of control unit 11 meets hyperfrequency and penetrates
Frequency identification require coding (such as super high frequency radio frequency identification air protocol forward direction command code, including TPP coding, PIE coding
Deng), after then being operated using D/A conversion, filtering processing, level conversion etc., by 13 modulate emission of handset emissions channel, such as
The preceding modulation system is modulated using ASK, can is specifically DSB-ASK, SSB-ASK or PR-ASK, be sent out before modulation by mobile phone
Penetrate carrier wave and various passwords that channel 13 forms designated frequency band.In more embodiments, adjusted to more easily realize
Process processed modulates the characteristic of itself according to ASK, power amplifier unit 18 is provided between handset emissions channel 13 and RFID antenna 17,
Handset emissions channel 13 sends the super high frequency radio frequency discriminatory carrier signal of designated frequency band by power amplifier unit 18, and control unit 11 produces
Modulated signal is given birth to, includes the data information being ready for sending away in modulated signal, it is the low frequency from original signal transformation
Signal, conversion obtains low and high level after being operated by D/A conversion, filtering processing, level conversion etc., it can for level " 1 ", electricity
Flat " 0 ", above-mentioned level signal act on the enable pin of power amplifier unit 18, for example, opening when modulated signal is high level
Power amplifier unit 18 controls the transmitting of carrier signal, when modulated signal is low level, turns off power amplifier unit 18, the load emitted at this time
Wave signal amplitude is zero, so set, power amplifier unit 18 changes control on-off according to the low and high level of modulated signal to realize ASK
Modulation.
When operating mode is handset mode, i.e., handset emissions channel 13 launches outward mobile communication letter by antenna for mobile phone 14
Number, the second single-pole double-throw switch (SPDT) 22 is switched to the second non-moving end 2 by control and is connected with moved end 3.Handset emissions channel 13 at this time
It is encoded according to mobile communication standard, and controls frequency source 15 and generate the specified frequency range of mobile communication standard, make to work in hand
The channel of machine communication procedure forms signal of communication by modulation, is launched by antenna for mobile phone 14.
Preferably, in order to guarantee super high frequency radio frequency identification transceiver insulation, improve receive-transmit isolation, RFID antenna 17 with
Directional coupler 19 is set between RFID reception channel 16, handset emissions channel 13, and directional coupler 19 is four ports
Chip, including first end 191, second end 192, third end 193, the 4th end 194.In the present embodiment, directional coupler 19
First end 191 connect the second single-pole double-throw switch (SPDT) 22 the first non-moving end 1, receive handset emissions channel 13 send communication letter
Number.The second end 192 of directional coupler 19 connects RFID antenna 17, can send signal of communication to RFID antenna 17, can also be with
It receives RFID antenna 17 and receives external signal of communication.The third end 193 of directional coupler 19 exports local oscillation signal and is supplied to
RFID reception channel 16.4th end 194 of directional coupler 19 connects RFID reception channel 16, sends to RFID reception channel 16
From the received signal of communication of RFID antenna 17.According to the characteristic of directional coupler, when the first end 191 of directional coupler 19 inputs
When signal, the first end 191 of directional coupler 19 is input terminal, and the second end 192 of directional coupler 19 is straight-through end, orients coupling
The third end 193 of clutch 19 is coupled end, and the 4th end 194 of directional coupler 19 is isolation end, at this point, handset emissions channel 13
Super high frequency radio frequency, which is sent, by power amplifier unit 18 identifies signal of communication to the first end 191 of directional coupler 19, by orienting coupling
The second end 192 of clutch 19 connects RFID antenna 17 and communication signal emitting is gone out, and connects with the 4th end 194 of directional coupler 19
The RFID reception channel 16 connect is isolated with the signal of communication that handset emissions channel 13 is sent, and ensure that between transmitting-receiving not by crosstalk.
The third end 193 of directional coupler 19 is used as coupled end, can extract the carrier wave letter that the first end 191 of directional coupler 19 inputs
Number portion of energy, connect by the third end 193 of directional coupler 19 with the local oscillator port of RFID receiving channel 16, be
Realize that coherent demodulation provides local oscillator driving in RFID reception channel 16.
When RFID antenna 17 receives the signal of communication of external electronic tags feedback, to the second end of directional coupler 19
When 192 input signal, directional coupler 19 is reversely connected, and according to the characteristic of directional coupler, positive and negative connection Insertion Loss is consistent, at this time
The second end 192 of directional coupler 19 is input terminal, and the first end 191 of directional coupler 19 is straight-through end, directional coupler 19
Third end 193 be isolation end, the 4th end 194 of directional coupler 19 is coupled end, passes through the 4th end of directional coupler 19
The signal of communication of electronic tag feedback is sent to RFID reception channel 16 by 194 carries out the operation such as demodulation.Present embodiment is ingenious
The port identity that directional coupler is utilized in ground realizes transceiver insulation, and then the reception for improving super high frequency radio frequency identification is sensitive
Degree, and successfully local oscillation signal is extracted from the carrier signal of transmitting.
In more embodiments, local oscillation signal directly directly can extract local oscillator from the output end of power amplifier unit 18
Signal is supplied to RFID receiving channel 16.But local oscillation signal is extracted compared to above embodiment by power amplifier unit 18, it deposits
In following defect: be matched with very high requirement of the radio frequency identification power device to port, adaptation will affect power amplifier unit 18
Matching status causes efficiency to reduce, and power consumption increases, while influencing the matching status in entire radio frequency identification channel, deteriorates hyperfrequency
The receiving sensitivity of radio frequency identification.In addition, the third end 193 of directional coupler 19 is in light condition, also to cooperate in this way
Matching connection loads on the third end 193 of directional coupler 19.
As shown in Fig. 2, the super high frequency radio frequency identification device schematic diagram in an embodiment of the present invention based on mobile phone.In order to subtract
Interference between few circuit, it is preferable that RFID antenna 17, antenna for mobile phone 14 and RFID reception channel 16, mobile phone receiving channel 12
Between be arranged third single-pole double-throw switch (SPDT) 23, the 4th single-pole double-throw switch (SPDT) 24.In the present embodiment, third single-pole double-throw switch (SPDT)
4th end 194 of 23 the first non-moving end 1 connection directional coupler 19, is received by the 4th end 194 of directional coupler 19
Second non-moving end 2 of the signal of communication of RFID antenna 17, third single-pole double-throw switch (SPDT) 23 connects antenna for mobile phone 14, receives mobile phone day
The moved end 3 of the signal of communication of line, third single-pole double-throw switch (SPDT) 23 is connect with the moved end 3 of the 4th single-pole double-throw switch (SPDT) 24, and the 4th is single
First non-moving end 1 of double-pole double throw switch 24 connects RFID reception channel 16, and the second non-moving end 2 of the 4th single-pole double-throw switch (SPDT) 24 connects
Connect the mobile phone receiving channel 12.When operating mode is RFID mode, third single-pole double-throw switch (SPDT) 23, the 4th single-pole double-throw switch (SPDT)
24, which are switched to moved end 3 and the first non-moving end 1 by control, is connected, when operating mode is handset mode, third single-pole double-throw switch (SPDT)
23, the 4th single-pole double-throw switch (SPDT) 24 is switched to moved end 3 and the second non-moving end 2 by control and is connected.
As described above, there are two kinds of operating modes, respectively RFID mode and handset mode, tools in embodiment of the present invention
Body, when RFID mode, the first non-moving end of all single-pole double-throw switch (SPDT)s is connected with moved end, when handset mode, all lists
Second non-moving end of double-pole double throw switch is connected with moved end.RFID mode and handset mode have all shared partial circuit, so two kinds
Mode cannot work at the same time, and cause to influence each other.Two states are shared under handset mode, one is voice data communication state,
Another kind is standby mode, and in the standby state, there are two kinds of periodical communication states for mobile phone, and one is heartbeats to connect the period,
It is that heartbeat signal is sent, for ensuring hand by mobile phone receiving channel and handset emissions channel and base station communication every the several seconds
Machine and base station are in normal connection status, and are configured accordingly according to base station command.Another kind is the data interception period,
Be requested every several milliseconds to several ms operation datas for listening to whether to there is base station to send by mobile phone receiving channel, if
Have, then needs to enter voice data communication state, be communicated with base station.
As shown in figure 3, emitting signal of communication time diagram in an embodiment of the present invention.Heartbeat connection and data interception
It periodically generates, the idle period insertion RFID mode communication outside heartbeat connection and data listening periods.Control unit 11 is logical
Mobile phone receiving channel 12,13 transmit-receive mobile phone signal of communication of handset emissions channel are crossed, when voice data communication terminates and connects in heartbeat
It connects other than period, data interception period, control unit 11 receives and dispatches hyperfrequency by RFID reception channel 16, handset emissions channel 13
Radio frequency identification signal of communication.When voice data communication state, to ensure the normal of voice and data communication, it is not possible to interrupt extremely
RFID mode.In more embodiments, it is contemplated that the electronic tag of super high frequency radio frequency identification is more, what RFID mode occupied
Time is long, can close data interception, and pressure is switched to RFID mode, control unit 11 by mobile phone receiving channel 12,
13 transmit-receive mobile phone signal of communication of handset emissions channel, when voice data communication terminates and connects other than the period in heartbeat, closing number
According to listening to, control unit 11 receives and dispatches super high frequency radio frequency by RFID reception channel 16, handset emissions channel 13 and identifies signal of communication,
When completing super high frequency radio frequency identification, then restore data interception.But this mode has a drawback in that and is carrying out hyperfrequency
The voice data communication sent base station cannot be received when radio frequency identification, therefore present embodiment can be selected according to specific demand.
Because in order to maintain the proper network of mobile phone and base station to connect, heartbeat must be kept to connect the period, RFID mode must be
Heartbeat connects the idle period outside the period, and the heartbeat connection of mobile phone and base station is stateful prior to institute.
As shown in figure 4, radio frequency identification control method flow chart in an embodiment of the present invention.Using above-mentioned super high frequency radio frequency
Radio frequency identification control method on identification device, includes the following steps:
S1, super high frequency radio frequency identification instruction is received；Identification instruction can be initiated by the user interface of mobile phone, can also be led to
The entity key crossed on mobile phone is realized.Determine whether that starting super high frequency radio frequency knows according to the situation of mobile communication after receiving order
Not.
S2, it detects whether in mobile phone speech copper, if so, waiting voice data communication terminates；If there is
Voice data communication cannot start super high frequency radio frequency identification, guarantee the normal of voice data communication.Having begun hyperfrequency
Radio frequency identification communication, if having detected mobile phone speech data communications requests, needs to stop RFID mode, also wants waiting voice number
According to sign off.
S3, it detects whether to connect in the period in mobile phone heartbeat, if so, heartbeat connection is waited to terminate；
S4, it detects whether in data in mobile phone listening periods, if so, data interception is waited to terminate.Heartbeat in step S3
Data interception in connection and step S4 is all periodical and base station communication, is detected whether within the corresponding period, if
It is that cannot start super high frequency radio frequency identification.In more embodiments, in order to meet wanting for a large amount of super high frequency radio frequency identification
It asks, the data interception period can be closed, not steps performed S4, start super high frequency radio frequency identification by force.When completion super high frequency radio frequency
After identification, then reopen the data interception period.
If S5, above-mentioned testing result are all no, RFID reception channel reception super high frequency radio frequency identification signal of communication, mobile phone hair
It penetrates channel and sends super high frequency radio frequency identification signal of communication.If testing result is that the no communication illustrated under handset mode is idle shape
State is switched to RFID mode and starts super high frequency radio frequency identification, is configured, read data, the storage electricity of electronic tag accordingly
The data of subtab can switch back immediately to handset mode after the completion.It should be noted that above-mentioned step not necessarily indicates
Sequencing, step S2-S4, can front and back exchange, can also carry out simultaneously, when being switched to RFID mode, step S2-S4
Detection is periodically carried out, once there is specified requirements it is necessary to be switched to handset mode again, waits the communication under handset mode
Terminate.
As shown in figure 5, radio-frequency identification control device module map in an embodiment of the present invention.Using above-mentioned super high frequency radio frequency
Radio-frequency identification control device on identification device, including receiving unit 31, detection voice data communication unit 32, detection heartbeat company
Order member 33, detection data listen to unit 34, switch unit 35.Receiving unit 31, for receiving super high frequency radio frequency identification instruction,
Including can receive the transducing signal on cell-phone user interface, judgement obtains super high frequency radio frequency identification instruction.Detect voice data
Communication unit 32, for detecting whether in mobile phone speech copper, if so, waiting voice data communication terminates；Detection
Heartbeat connection unit 33, for detecting whether within the mobile phone heartbeat connection period, if so, heartbeat connection is waited to terminate；Testing number
According to listening to unit 34, for detecting whether in data in mobile phone listening periods, if so, data interception is waited to terminate.Above three
Detection unit is communicated under handset mode either with or without with base station for detecting.Preferably, receiving unit 31 receives hyperfrequency
After radio frequency identification instruction, data interception is closed, stops detection data and listens to the work of unit 34, temporarily cease data in mobile phone and listen to,
Temporarily do not receive voice data communication, is switched to RFID mode by force and starts super high frequency radio frequency identification.Switch unit 35, is used for
When to judge above-mentioned testing result all be no, control RFID reception channel reception super high frequency radio frequency identifies signal of communication, handset emissions
Channel sends super high frequency radio frequency and identifies signal of communication, and switch unit 35 can according to need switches back into handset mode again.
In conjunction with method and technology scheme disclosed in the present application, hardware can be embodied directly in, by the soft of control unit execution
Part module or both combination, i.e. one or more steps and/or one or more steps combination, both can correspond to computer journey
Each software module of sequence process can also correspond to each hardware module, such as ASIC(Application Specific
Integrated Circuit, specific integrated circuit), FPGA(Field-Programmable Gate Array, scene can compile
Journey gate array) or other programmable logic device, discrete gate or transistor logic, discrete hardware components or it is any suitable
Work as combination.For convenience of description, it is divided into various modules when description above-mentioned apparatus with function to describe respectively, certainly, is implementing this
The function of each module can be realized in the same or multiple software and or hardware when application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It realizes by means of software and necessary general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be embodied in the form of software products.The software is by microcontroller list
Member executes, and depends on required configuration, may include any kind of one or more micro-control units, including but not limited to
Micro-control unit, microcontroller, DSP(Digital Signal Processor, Digital Signals unit) or its any group
It closes.The software is stored in memory, for example, volatile memory (such as random-access memory etc.), nonvolatile memory
(for example, read-only memory, flash memory etc.) or any combination thereof.
In conclusion the present invention is close with the frequency point that super high frequency radio frequency identifies using the frequency point of mobile communication, by hand
Increase a small amount of circuit on machine, share the main circuit of mobile phone, realizes portable super high frequency radio frequency identification.The present invention may be implemented one
The portable super high frequency radio frequency of kind identifies handset products, small in size, low in cost.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of super high frequency radio frequency identification device based on mobile phone, including control unit, mobile phone receiving channel, handset emissions channel
And it is corresponding for the antenna for mobile phone of transmit-receive mobile phone signal of communication, for providing the frequency source of oscillator signal；It is characterized in that, also
Including RFID reception channel and the corresponding RFID antenna for identifying signal of communication for receiving and dispatching super high frequency radio frequency；
Described control unit is selectively connect with the RFID reception channel or mobile phone receiving channel according to operating mode, described
RFID reception channel or mobile phone receiving channel pass through corresponding antenna reception signal of communication；
The handset emissions channel sends communication letter optionally by the RFID antenna or antenna for mobile phone according to operating mode
Number, described control unit controls the frequency source to modulate the communication of designated frequency band by the handset emissions channel coding and believe
Number.
2. super high frequency radio frequency identification device according to claim 1, which is characterized in that described control unit and the RFID
First single-pole double-throw switch (SPDT) is set between receiving channel, mobile phone receiving channel, and the first of first single-pole double-throw switch (SPDT) is motionless
End connects the RFID reception channel, and the second non-moving end of first single-pole double-throw switch (SPDT) connects the mobile phone receiving channel,
The moved end of first single-pole double-throw switch (SPDT) connects described control unit；
Second single-pole double-throw switch (SPDT) is set between the handset emissions channel and the RFID antenna, antenna for mobile phone, described second
First non-moving end of single-pole double-throw switch (SPDT) to the RFID antenna send signal of communication, the second of second single-pole double-throw switch (SPDT)
Non-moving end sends signal of communication to the antenna for mobile phone, and the moved end of second single-pole double-throw switch (SPDT) is logical by the handset emissions
Road receives signal of communication.
3. super high frequency radio frequency identification device according to claim 1, which is characterized in that the handset emissions channel with it is described
Power amplifier unit is provided between RFID antenna, the handset emissions channel sends super high frequency radio frequency identification by the power amplifier unit
Carrier signal, the power amplifier unit change control on-off according to the low and high level of modulated signal to realize that ASK is modulated.
4. super high frequency radio frequency identification device according to claim 1, which is characterized in that the RFID antenna, antenna for mobile phone
Third single-pole double-throw switch (SPDT), the 4th single-pole double-throw switch (SPDT) are set between the RFID reception channel, mobile phone receiving channel, it is described
First non-moving end of third single-pole double-throw switch (SPDT) receives the signal of communication of the RFID antenna, the third single-pole double-throw switch (SPDT)
Second non-moving end receives the signal of communication of the antenna for mobile phone, the moved end of the third single-pole double-throw switch (SPDT) and the 4th hilted broadsword
The moved end of commutator connects, and the first non-moving end of the 4th single-pole double-throw switch (SPDT) connects the RFID reception channel, described
Second non-moving end of the 4th single-pole double-throw switch (SPDT) connects the mobile phone receiving channel.
5. super high frequency radio frequency identification device according to claim 1, which is characterized in that the RFID antenna and the RFID
Directional coupler is set between receiving channel, handset emissions channel, and the first end of the directional coupler receives the mobile phone hair
The signal of communication of channel transmission is penetrated, the second end of the directional coupler connects the RFID antenna, the directional coupler
Three-polar output local oscillation signal is supplied to the RFID reception channel, and the 4th end of the directional coupler is to the RFID reception
Channel is sent from the received signal of communication of the RFID antenna.
6. super high frequency radio frequency identification device according to claim 1, which is characterized in that the RFID reception channel is in zero
Frequency receiver；The mobile phone receiving channel is superhet or low intermediate frequency receiver.
7. it is applied to the radio frequency identification control method on super high frequency radio frequency identification device of any of claims 1-6,
It is characterized by comprising the following steps:
Receive super high frequency radio frequency identification instruction；
It detects whether in mobile phone speech copper, if so, waiting voice data communication terminates；
It detects whether to connect in the period in mobile phone heartbeat, if so, heartbeat connection is waited to terminate；
It detects whether in data in mobile phone listening periods, if so, data interception is waited to terminate；
If above-mentioned testing result is all no, RFID reception channel reception super high frequency radio frequency identification signal of communication, handset emissions channel
It sends super high frequency radio frequency and identifies signal of communication.
8. radio frequency identification control method according to claim 7, which is characterized in that after receiving super high frequency radio frequency identification instruction
Data interception is closed, stopping detects whether in data in mobile phone listening periods.
9. it is applied to the radio-frequency identification control device on super high frequency radio frequency identification device of any of claims 1-6,
It is characterised by comprising:
Receiving unit, for receiving super high frequency radio frequency identification instruction；
Voice data communication unit is detected, for detecting whether in mobile phone speech copper, if so, waiting voice data
Sign off；
Heartbeat connection unit is detected, for detecting whether within the mobile phone heartbeat connection period, if so, heartbeat connection is waited to terminate；
Detection data listens to unit, for detecting whether in data in mobile phone listening periods, if so, data interception is waited to terminate；
When switch unit for judging above-mentioned testing result is all no, control RFID reception channel reception super high frequency radio frequency identification
Signal of communication, handset emissions channel send super high frequency radio frequency and identify signal of communication.
10. radio-frequency identification control device according to claim 9, which is characterized in that the receiving unit receives hyperfrequency
After radio frequency identification instruction, data interception is closed, stops the detection data and listens to cell operation.
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| CN201610350881.9A CN105827761B (en) | 2016-05-25 | 2016-05-25 | Super high frequency radio frequency identification device and control method, device based on mobile phone |
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| CN201610350881.9A CN105827761B (en) | 2016-05-25 | 2016-05-25 | Super high frequency radio frequency identification device and control method, device based on mobile phone |
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| CN109815759A (en) * | 2019-01-24 | 2019-05-28 | 电子科技大学 | A kind of telecommunication group network system and network-building method based on ultrahigh frequency RFID |
| CN112672292B (en) * | 2021-03-17 | 2021-06-22 | 南京少昊网络科技有限公司 | RFID read-write control system and method |
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