CN103093170A - Electronic tag fast recognition method and device - Google Patents
Electronic tag fast recognition method and device Download PDFInfo
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- G06K7/10297—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 arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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Abstract
The invention relates to an electronic tag fast recognition method which comprises the following steps: receiving a waking up signal and extracting waking up instructive information; receiving a control signal, analyzing the control signal and acquiring first information and second information, wherein the second information comprises a tag agreement working mode, a communication timing sequence mode and a working information channel information; judging whether the electronic tag is wakened up or not according to the waking up instructive information, if yes, continuously keeping the electronic tag in a dormant state after storing the first information; waking up the electronic tag and finishing the recognition procedure of the electronic tag according to a recognition process which is instructed by the tag agreement working mode information and sending and receiving data based on requirements of a reader, and so that the electronic tag enters the dormant state. The invention further relates to a device which is used for achieving the aforementioned method. The electronic tag fast recognition method and the device have the advantages of being simple in handling process, fast in recognition speed and accurate in recognition.
Description
Technical field
The present invention relates to wireless communication field, more particularly, relate to a kind of electronic tag method and the device of identification fast.
Background technology
Radio-frequency (RF) identification (RFID, Radio Frequency Identify) is a kind of contactless automatic identification technology, and it is automatically identified destination object and obtain related data by radiofrequency signal, and identification work need not manual intervention, can work in various rugged surroundings.REID can be identified high-speed moving object and can identify simultaneously a plurality of labels, and is swift and convenient to operate.The basic functional principle of REID is as follows: reader sends radiofrequency signal to the label in its electromagnetic field areal coverage, after the radiofrequency signal that label reception reader sends, the energy that relies on induction current to obtain sends out the product information (for passive label or passive label) that is stored in chip, and the energy that the battery that perhaps utilizes label to carry provides sends the signal (for active label or active tag) of a certain frequency; Active label can initiatively send radiofrequency signal to reader.After reader reading information and decoding, deliver to application system and carry out the relevant data processing, to reach identification and the Data Collection to the on-site label.
At present, different radio-frequency recognition systems is according to specifically using adopt different communication meanss different from technical requirement.Such as, international standard ISO 18000-6 and ISO 18000-7 respectively standard be operated in 900MHz passive radio frequency identification system communication means and be operated in the communication means of the active radio frequency identification system of 433MHz.Active radio frequency identification system in the military radio-frequency (RF) identification air interface protocol definition of China GJB 7377.2-2011 works in the 2.45GHz frequency range.
Usually, a radio-frequency recognition system is comprised of a reader and a plurality of label, and therefore, above-mentioned communication means is in the method for field of radio frequency identification also referred to as reader counting label or identification label.Particularly, the reader of stipulating in ISO 18000-6 type C and the method for label communication are: reader is initiated one and is checked the cycle by sending querying command (Query), after label is received this querying command, according to command parameter Q at random 0 to 2
QSelect an integer in-1 scope, select 0 transmission.The label that sends carries 16 random number R N16 simultaneously as temporary identity ID, if send successfully, completes the discriminating between reader and label take this ID as identity information.After differentiating successfully, reader sends the information that the order reading tag of point-to-point is carried, for example: EPC(Electronic Product Code, electronic article coding), TID(Tag identifier, tag identification number) etc.In addition, reader can be completed write operation by order.Do not send successful label, wait for that next querying command (Query) responds again.Reader is adjusted the Q value according to the reception result of current time slots.In general, the defined once complete process of checking of this communication process has been completed following three tasks: the first, complete the access (also referred to as multiple labels anti-collision) of label by querying command (Query) and related command; The second, carry out corresponding identity take RN16 as temporary identity information and differentiate; The 3rd, reader carries out read-write operation by order to single label.
Particularly, the reader of stipulating in ISO 18000-7 and the method for label communication are: reader sends specific waveform as wake-up signal, wakes the label that is in dormant state up.After label is waken up, wait for receiving the collection order (Collection) that reader sends.After label is received this collection order, select a timeslice to reply own information (namely selecting in the time slot A LOHA of framing the information of the time slot transmission oneself in a frame) in a time window according to stochastic parameter ground.After reader receives a time window (or a frame), confirm sending successful label, simultaneously further reading tag information, such as UDB(Universal Data Block, generic data block), read and successfully send afterwards sleep command, after this label is received sleep command, enter dormant state, can't respond follow-up collection order, until after being waken up next time.Do not send successful label, reselect timeslice and send in follow-up time window.Reader is adjusted window size according to situation about receiving in the current time window.In general, the defined once complete process of checking of this communication process can briefly be divided into an awake period and a plurality of collection phase.The collection phase can be divided into again sync period, listen period and confirmation phase.Specifically, in awake period, reader sends the wake-up signal of certain time length, to wake the label that is in dormancy up.In the collection phase, reader send to be collected order, synchronous all labels, and intercept the reply of label in follow-up listen period (time window).After intercepting end, reader carries out the read-write operation of point-to-point to the label of success, namely confirm the phase, and the label of end of operation changes dormancy over to by order.This collection phase is constantly adjusted and repeats until all labels are all checked complete.
Particularly, the reader of stipulating in GJB 7377.2-2011 and the communication means of label are: label is in dormant state or periodicity dormancy/wake states usually, before reader and label communication, must label be waken up or guarantee label in wake states by outside waken system, the communication process of reader and label be divided into awake period, access periods, collection phase and session phase.Reader sends incoming order to the label that is in wake-up states, and according to the anticollision protocol of prior setting, labels access that all have been waken up, and represent the collection time-gap number of its time slot position in collecting time slot for each label distribution that has accessed; Reader sends collects order, and label will be collected the data transmission of instruction (collecting order) requirement to reader according to the time slot position of the collection time slot that its collection time-gap number that receives determines.Carry out communicating by letter of point-to-point at session phase reader with label, afterwards, reader sends sleep command and makes label be in dormant state.
Can see, in above-mentioned active radio frequency identification system, label do not check or identifying outside the time usually need to be in dormant state, saving tag energy, thereby obtain longer serviceable life.Therefore, before label is identified, usually can send the wake-up signal of certain time length, to activate label, open the label communication module.After label is activated, usually can carry out a predetermined anticollision protocol or algorithm, to reach the access of many labels, afterwards after read write line obtains the TID of label, then carry out two-way data interaction with label.For the identification of rapid movement label, some complexity of such treatment scheme makes recognition speed unhappy, when even high when tag motion speed or the traffic is large, is difficult to guarantee the successful identification of label.
Summary of the invention
The technical problem to be solved in the present invention is, above-mentioned treatment scheme for prior art is complicated, recognition speed is unhappy, identify inaccurate defective, provides that a kind for the treatment of scheme is simple, recognition speed very fast, identification electronic tag method and the device of identification fast more accurately.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of electronic tag method of identification fast, comprise the steps:
A) receive wake-up signal and will wake indication information up and extract;
B) reception control signal and its parsing is obtained the first information and the second information; Described the second information comprises label protocol working method, communication time series pattern and working channel information;
C) judge whether to wake up described electronic tag according to the described indication information that wakes up, in this way, execution in step D); Otherwise, will make described electronic tag continue to keep dormant state after described first information storage;
D) wake described electronic tag up, complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to the indicated identification process of described label protocol working method information;
E) described electronic tag enters dormant state.
At electronic tag of the present invention fast in the method for identification, the described first information comprises the residing positional information of label or/and temporal information, and described the second information also comprises information rate or/and modulation system information.
In the method that electronic tag of the present invention is identified fast, described step D) further comprise:
D1) wake described electronic tag up;
D2) judge according to described label protocol working method information whether its indicated identification process is quick identification process, in this way, execution in step D3); Otherwise, complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to general identification process, and execution in step D5);
D3) judge according to described communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product, in this way, described electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to described working channel information, and execution in step D5); Otherwise, execution in step D4);
D4) described electronic tag receive the read write command that reader sends and confirm as be lawful order after, reply data according to the indication of described read write command or predetermined content;
D5) described electronic tag enters dormant state.
In the method that electronic tag of the present invention is identified fast, described general identification process is many tag recognition agreement flow process.
At electronic tag of the present invention fast in the method for identification, described electronic tag is received and is entered dormant state after the outside sleep command that sends or complete after identification work from being advanced into dormant state according to predefined.
The invention still further relates to a kind of above-mentioned electronic tag device of the method for identification fast of realizing, comprising:
Wake extraction module up: be used for receiving wake-up signal and waking indication information up extracting;
Control signal parsing module: be used for reception control signal and its parsing is obtained the first information and the second information; Described the second information comprises label protocol working method, communication time series pattern and working channel information;
Wake judge module up: be used for judging whether to wake up described electronic tag according to the described indication information that wakes up, and will make described electronic tag continue to keep dormant state after described first information storage when not waking up;
Wake up and identification module: be used for waking up described electronic tag, complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to the indicated identification process of described label protocol working method information;
Sleep block: be used for making described electronic tag enter dormant state.
Realize above-mentioned electronic tag fast in the device of the method for identification of the present invention, the described first information comprises the residing positional information of label or/and temporal information, and described the second information also comprises information rate or/and modulation system information.
Realize above-mentioned electronic tag fast in the device of the method for identification of the present invention, described wake up and identification module further comprises:
Wakeup unit: be used for waking up described electronic tag;
Identification process judging unit: be used for judging according to described label protocol working method information whether its indicated identification process is quick identification process, as not being complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to general identification process;
Sequential judging unit: be used for judging according to described communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product, in this way, described electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to described working channel information;
Reply the unit: be used for described electronic tag receive the read write command that reader sends and confirm as be lawful order after, reply data according to the indication of described read write command or predetermined content;
Dormancy unit: be used for making described electronic tag enter dormant state.
Realize above-mentioned electronic tag fast in the device of the method for identification of the present invention, described general identification process is many tag recognition agreement flow process.
Realize above-mentioned electronic tag fast in the device of the method for identification of the present invention, described electronic tag is received and is entered dormant state after the outside sleep command that sends or complete after identification work from being advanced into dormant state according to predefined.
Implement electronic tag of the present invention method and the device of identification fast, has following beneficial effect: because the electronic tag that is in dormant state receives wake-up signal and control signal, and the indication information that wakes up in wake-up signal is extracted, control signal is resolved the first information and the second information of obtaining; Judge whether to wake up described electronic tag according to waking indication information up, if wake electronic tag up, complete the identifying of electronic tag and require to transmit and receive data according to reader according to the indicated identification process of label protocol working method information after electronic tag activates, the complete rear electronic tag of communicating by letter enters dormant state; If do not wake up, the first information stored and continued to keep dormant state; Above-mentioned whole identifying is comparatively simple, so its treatment scheme is simple, recognition speed very fast, identification is more accurate.
Description of drawings
Fig. 1 is the method for the quick identification of electronic tag of the present invention and installs the process flow diagram of method in embodiment;
Fig. 2 is the concrete process flow diagram that in described embodiment, electronic tag wakes rear identification up;
Fig. 3 is the structural representation that installs in described embodiment;
Fig. 4 wakes up in described embodiment and the structural representation of identification module;
Fig. 5 is the structural representation of active radio system in described embodiment;
Fig. 6 is the structural representation of electronic tag in described embodiment;
Fig. 7 wakes the structural representation of control module up in described embodiment;
Fig. 8 is the schematic diagram of in described embodiment, the 2.45GHz active radio frequency identification system being identified fast.
Embodiment
Can understand and implement the present invention for the ease of those of ordinary skill in the art, embodiments of the present invention is further illustrated below in conjunction with accompanying drawing.
At electronic tag of the present invention fast in the method and device embodiment of identification, the process flow diagram of its method as shown in Figure 1, the method comprises:
Step S01 receives wake-up signal and will wake indication information up and extracts: the method for the present embodiment is applied to active radio frequency identification system, for example: work in the active radio frequency identification system of 433MHz or satisfy the active radio frequency identification system that works in 2.45GHz of stipulating in GJB 7377.2-2011.Active electronic label carries battery usually, label (active electronic label) work institute energy requirement comes from powered battery, in order to save energy, label usually is in periodicity sleeping/waking state or is in for a long time dormant state, unless extraneous wake-up signal wakes label up.Be in the periodically label of sleeping/waking state, only have when it at wake-up states and just dwelling period dormancy and enter duty when listening to order from reader, and complete identifying according to the order of reader, enter dormant state according to sleep command afterwards, and return to periodically sleeping/waking state.The label that is in long-term dormant state can be saved energy better, but need outside waken system to wake up, when the needs identification label, label is waken up, and itself and reader are communicated, after completing identifying, enter long-term dormant state according to the sleep command of reader.Because active electronic label carries battery, comparatively sufficient energy and larger emissive power are arranged, thereby be commonly used to identify some large objects, and can realize the quick identification to remote object.For example: comparatively typical the application is applied to logistics system or vehicle management system with active radio frequency identification system exactly, namely stick active electronic label for each vehicle, can be in the Vehicle Driving Cycle process identification label fast, thereby obtain the information of vehicle loading article.
In this step, receive wake-up signal and will wake indication information up and extract, the electronic tag that also namely is in dormant state receive wake-up signal and it is identified, verifies and resolves after will wake indication information up and extract, can judge whether to wake up electronic tag according to waking indication information up.The carrier wave of the wake-up signal in the present embodiment works in the 125kHz frequency range, and when sending, the information data that wake-up signal comprises sends frame by frame with the form of Frame.Particularly, the waveform to this wake-up signal after electronic tag is received wake-up signal is identified, and the information such as the identity ID that carries in the verification msg frame, password or key, to confirm legal identity.
step S02 reception control signal also obtains the first information and the second information with its parsing: in this step, reception control signal also obtains the first information and the second information with its parsing, specifically, after electronic tag is received control signal, data to this control signal are resolved, and convert thereof into the first information and the second information, in the present embodiment, the second information is signaling information namely, the second information comprises the label protocol working method, communication time series pattern and working channel information, the second information also comprises other messaging parameter, for example: communications parameter information speed and modulation system information.The first information is time location information, and it comprises the residing positional information of label or/and temporal information, and other information that needs label to preserve, and the first information is the part of relevant information entrained in Frame.
It is worth mentioning that, in the present embodiment, wake-up signal and control signal can be included in same Frame and send, also can divide in different Frames to send, but must first send wake-up signal, after transmit control signal.Frame comprises the parts such as frame preamble, synchronous, frame length, frame control word and data at least, leads after also can comprising frame.The frame control word that sends Frame has comprised excitation types (back has descriptions), transmission cycle, has waken indication information and other control parameter etc. up, and data division has comprised excitation controller ID(back and had description), target labels information, authentication information, agreement working method information and other command information etc.The specifying information content of Frame various piece can be adjusted according to concrete system.It is worth mentioning that, excitation controller (back has description) can repeatedly send wake-up signal and control signal to label at different time or diverse location.
Step S03 judges whether to wake up electronic tag according to waking indication information up: wake indication information up and can indicate electronic tag whether to be in normal operating conditions, in this step, judge whether to wake up electronic tag according to waking indication information up, if the result of judgement is yes, execution in step S05; If the result of judgement is no, execution in step S04.
After storing the first information, step S04 make electronic tag continue to keep dormant state: if the determination result is NO for above-mentioned steps S03, namely not wake electronic tag up, carry out this step.In this step, will the first information make electronic tag continue to keep dormant state after storage, the first information comprises the residing positional information of label or/and temporal information, and other information that needs label to preserve.
Step S05 wakes electronic tag up, complete the identifying of electronic tag and transmit and receive data by the reader requirement according to the indicated identification process of label protocol working method information: if judgment result is that of above-mentioned steps S03 is, namely wake electronic tag up, carry out this step.In this step, waking electronic tag up makes it be in normal operating conditions, and complete the identifying of electronic tag according to the indicated identification process of label protocol working method information, quick identification process and general identification process are provided in the present embodiment, general identification process is many tag recognition agreement flow process, general identification process has multiple available, for example: can be the defined protocol procedures of GJB 7377.2-2011 standard, can be also standard ISO 18000-6 or the defined protocol procedures of ISO 18000-7.According to specific needs, can a certain identification process of corresponding selection, then carry out the identifying of electronic tag according to selected identification process, and transmit and receive data by the reader requirement.Concrete the identifying about how can be described after a while.
Step S06 electronic tag enters dormant state: after electronic tag was finished the work, in this step, electronic tag entered dormant state.Electronic tag enter after receiving the outside sleep command that sends dormant state or according to predefined complete identification work after from being advanced into dormant state.
For the present embodiment, above-mentioned steps S05 can further carry out refinement, the particular flow sheet after its refinement as shown in Figure 2, in Fig. 2, it further comprises:
Step S501 wakes electronic tag up: in this step, the electronic tag that will be in dormant state wakes up.
Step S502 judges according to label protocol working method information whether its indicated identification process is quick identification process: in this step, judge according to above-mentioned label protocol working method information whether its indicated identification process is quick identification process, if the result of judgement is yes, execution in step S504; If the result of judgement is no, execution in step S503.
Step S503 completes the identifying of electronic tag and transmits and receive data by the reader requirement according to general identification process: if the determination result is NO for above-mentioned steps S502, be that the indicated identification process of label protocol working method information is general identification process, carry out this step.In this step, complete the identifying of electronic tag according to general identification process, in the present embodiment, general identification process is the defined protocol procedures of GJB 7377.2-2011 standard, certainly, in the other situation of the present embodiment, general identification process can be also standard ISO 18000-6 or the defined protocol procedures of ISO 18000-7.Here be described no longer in detail.
Step S504 judges according to communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product: if judgment result is that of above-mentioned steps S503 is, be that the indicated identification process of label protocol working method information is quick identification process, carry out this step.In this step, judge according to communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product, if the result of judgement is yes, execution in step S505; If the result of judgement is no, execution in step S506.
Step S505 electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to working channel information: if judgment result is that of above-mentioned steps S504 is to carry out this step.In this step, electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to working channel information, be exactly specifically, electronic tag is replied TID and other information predetermined or appointment according to the working channel information that provides in the second information on the channel of predetermined or appointment.Working channel information is used to specify label and replys reader frequency information or gap information used.Execute this step, execution in step S507.
Step S506 electronic tag receive the read write command that reader sends and confirm as be lawful order after, reply data according to the indication of read write command or predetermined content: if the determination result is NO for above-mentioned steps S504, the time series pattern of namely communicating by letter is that reader is first sent out, and carries out this step.In this step, at first label receives the recognition command that reader sends, after confirming that this recognition command is lawful order, label is replied data according to this recognition command indication or predetermined content, that is to say, label receives the recognition command that sends from reader, the resolve command parameter, and reply TID and out of Memory according to the recognition command appointment or predetermined channel and messaging parameter.It is worth mentioning that, in this step, the communication interaction of label and reader can have repeatedly.Reader can repeatedly send recognition command, and label can be done repeatedly reply; Label also can initiatively be replied repeatedly, and waits for the confirmation information that receives reader.Design parameter information can be set in the second information, also can be set by the reader command parameter.Execute this step, execution in step S507.
Step S507 electronic tag enters dormant state: when the collection of completing TID and out of Memory, and complete transmit and receive data by the reader requirement after, be also electronic tag with reader between complete communicate by letter after, reader sends sleep command makes label recover (entering) dormant state, perhaps make label enter dormant state by outside dormancy indication information (for example sending the dormancy indication information by excitation controller), or according to set in advance after label successfully sends predetermined identifying information (after confirming that identifying finishes) change voluntarily dormant state over to.
The present embodiment also relates to a kind of device of realizing said method, its structural representation as shown in Figure 3, in Fig. 3, this device comprises and wakes extraction module 1, control signal parsing module 2 up, wakes judge module 3 up, wakes up and identification module 4 and sleep block 5; Wherein, waking extraction module 1 up is used for receiving wake-up signal and waking indication information up extracting; Control signal parsing module 2 is used for reception control signal and its parsing is obtained the first information and the second information; Above-mentioned the second information comprises label protocol working method, communication time series pattern and working channel information; Wake judge module 3 up and be used for judging whether to wake up electronic tag according to waking indication information up, and will make electronic tag continue to keep dormant state after first information storage when not waking up; Wake up and identification module 4 is used for waking electronic tag up, complete the identifying of electronic tag and transmit and receive data by the reader requirement according to the indicated identification process of label protocol working method information; Sleep block 5 is used for making electronic tag enter dormant state.The above-mentioned first information comprises the residing positional information of label or/and temporal information, and the second information also comprises information rate or/and modulation system information.
As shown in Figure 4, in the present embodiment, above-mentioned wake up and identification module 4 further comprises wakeup unit 41, identification process judging unit 42, sequential judging unit 43, replys unit 44 and dormancy unit 45; Wherein, wakeup unit 41 is used for waking up electronic tag; Identification process judging unit 42 is used for judging according to label protocol working method information whether its indicated identification process is quick identification process, as not being complete the identifying of electronic tag and transmit and receive data by the reader requirement according to general identification process; Sequential judging unit 43 is used for judging according to communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product, in this way, electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to working channel information; Reply unit 44 be used for electronic tag receive the read write command that reader sends and confirm as be lawful order after, reply data according to the indication of read write command or predetermined content; Dormancy unit 45 is used for making electronic tag enter dormant state.It is worth mentioning that, in the present embodiment, general identification process is many tag recognition agreement flow process; Electronic tag is received and is entered dormant state after the sleep command that outside (for example: reader or excitation controller) sends or complete after identification work from being advanced into dormant state according to predefined.
Fig. 5 is the structural representation of active radio system in the present embodiment, in Fig. 5, active radio frequency identification system comprises reader 01, excitation controller 02 and electronic tag 03, and more fully system also should comprise application system and the communication network that is connected reader 01 and excitation controller 02 etc.Can pass through cable network or other interconnected with wireless network between reader 01 and excitation controller 03, also can work independently.Allowed a plurality of readers and a plurality of excitation controller to exist simultaneously in real system is disposed, these readers and excitation controller can be used the network interconnection, and cooperation mutually also can local working alone.Electronic tag 03 is connected with excitation controller with reader 01 respectively and is connected, and reader 01 and electronic tag 03 are usually operated at the UHF channel, and for example: the 2.45GHz frequency range can work in 2.405GHz-2.480GHz particularly.Excitation controller 02 can work in low-frequency range, for example: the 125kHz frequency range, perhaps uhf band, for example: the 915MHz frequency range, or other is different from the frequency range that electronic tag 03 is communicated by letter with reader 01.The signal circulation way of excitation controller 02 is not limited to low frequency or uhf electromagnetic wave, also can pass through infrared ray or sensor to modes such as ambient signal inductions.
in the present embodiment, reader 01 works in 2.45GHz with electronic tag 03, excitation controller 02 works near 125kHz frequency range (its working frequency points can 125kHz), electronic tag 03 possesses the basic function of general active RFID tag, support periodically from waking up, also support the outside to wake up, support multi-label anti-collision algorithm and with the bidirectional data communication of reader 01, electronic tag 03 in the present embodiment possesses the defined function of standard GJB 7377.2-2011, certainly, under the certain situation of the present embodiment, electronic tag can possess the function of other standard definition, for example standard ISO 18000-6 or the defined function of ISO 18000-7.
Fig. 6 is the structural representation of electronic tag in the present embodiment, in Fig. 6, electronic tag 03 comprise wake control module 31, memory module 32 up, central authorities process and control module 33, radio receiving transmitting module 34 and power module 35; Wherein, power module 35 is respectively to waking control module 31, central authorities' processing and control module 33 and radio receiving transmitting module 34 power supplies up, memory module 32 is used for storing temporarily or permanently the data message from waking control module 31, central authorities' processing and control module 33 and radio receiving transmitting module 34 up, radio receiving transmitting module 34 is used for the sending and receiving wireless signal, central authorities process with control module 33 for the treatment of the information of receiving from waking control module 31, memory module 32 and radio receiving transmitting module 34 up, and control the operation of above-mentioned each module and the information interaction between each module; Wake control module 31 up and receive wake-up signal and the control signal that sends from excitation controller 02, and the wake-up signal that receives is identified, verified and parsing extracts and wakes indication information up, control signal is resolved the first information and the second information of obtaining, and will wake indication information and the second information (signaling information) up output to central authorities and process and control module 33 in the time will waking label up, central authorities process with control module 33 and control power module 35 to radio receiving transmitting module 34 power supplies, and active electron label 03 makes it in running order.It is worth mentioning that, when electronic tag 03 does not wake up, the first information is stored in memory module 32, at this moment control module 31 or central authorities process and control module 33 control store modules 32 are carried out storage work by waking up.It is worth mentioning that, when electronic tag 03 woke up, radio receiving transmitting module 34 was connected in running order; When electronic tag 03 did not wake up, radio receiving transmitting module 34 was not powered, and can not carry out work.
Fig. 7 is the structural representation that wakes control module in the present embodiment up, in Fig. 7, wakes control module 31 up and comprises signal receiving module 311 and signal processing module 312; Wherein, signal receiving module 311 can comprise the receiver of one or more signal with different type, for example: the LF receiver of 125kHz frequency range (LF receiver), or the ultra-high frequency receiver of 915MHz (UHF receiver), or infrared receiver, can be also specific sensor interface, in prior art, interface is more single, compared with prior art, this system is more flexible.Signal receiving module 311 receives wake-up signal and control signal, and wake-up signal and control signal are carried out demodulation, restore information, and the information after reducing sends to signal processing module 312 according to unified form.The information of 312 pairs of signal receiving modules of signal processing module, 311 outputs is resolved, and carry out order that this information comprises or predetermined order, for example, indication information be will wake up and central authorities' processing and control module 33 exported to, or storage correlation reception information, or output protocol working method, time series pattern, working channel and other parameter of communicating by letter etc.
Fig. 8 is the schematic diagram of in the present embodiment, the 2.45GHz active radio frequency identification system being identified fast, as shown in Figure 8, this radio-frequency recognition system comprises application system, reader, excitation controller and label, and wherein, reader, excitation controller and application system are interconnected by computer network successively.Excitation controller works in the 125kHz frequency range, and reader and label work in the 2.45GHz frequency range, and label is affixed on as shown in Figure 8 the vehicle that travels.The process of utilizing method provided by the invention to identify fast this label is carried out as follows:
(1) excitation controller periodically sends wake-up signal and control signal, and for example: frame length is 50ms, and the transmission cycle is 80ms.Comprise excitation controller ID in wake-up signal and control signal: " 1# "; Agreement working method: quick identification process; The communication time series pattern: label is first sent out; Channel information: channel 0(2.405GHz); Label return information: TID.
(2) when vehicle (carrying label) enters the A position, the label that is in dormant state utilizes signal receiving module 311(wake-up signal receiver) successfully receive wake-up signal and control signal that excitation controller sends, label is waken up, wake up 31 pairs of wake-up signals of control module and the control signal of label inside are identified respectively and are extracted and resolve, the second information (signaling information) is sent to central authorities' processing and control module 33 of label inside, label is selected quick identification process, and selection label dairy product, therefore, label sends to reader TID information at channel 0.
(3) after reader receives the TID information of label transmission, send confirmation to label, send sleep command to label simultaneously, label enters dormant state after receiving confirmation and sleep command.
It is worth mentioning that, active radio frequency identification system has communication distance far away usually, and it is usually nearer to wake distance up.Therefore, as shown in Figure 8, the A label is waken up in the position, and successful reception control signal, and reader can remain to position B with communicating by letter of label, different according to the emissive power of reader and label, the distance between position A and position B (also can be described as identification range) is corresponding not to be waited from tens meters to hundreds of rice.In the such active radio frequency identification system of Fig. 8 was used, label uses following characteristics usually: vehicle (carrying label) needs high speed by identified region usually, and identified region only has a car (single label) in a period of time.For such application scenarios, existing rfid system and agreement seem efficient not when processing the single label that passes through at a high speed, will limit like this Negotiation speed of vehicle.And method treatment scheme provided by the invention is simple and multiple interfaces is provided, so not only can improve the label Negotiation speed under this scene, reliability that also can Hoisting System identification and the flexibility ratio of agreement.In addition, the method that provides of the present embodiment also can be identified a plurality of labels.
In a word, in the present embodiment, active radio frequency identification system comprises reader 01, excitation controller 02 and electronic tag 03 at least.Excitation controller 02 sends wake-up signal and control signal to electronic tag 03, and the control module 31 of waking up in electronic tag 03 can receive wake-up signal from excitation controller 02 with control signal and it be identified extract and parsing respectively.Waking control module 31 output up wakes indication information up and wakes electronic tag 03(up and connect radio receiving transmitting module 34), and by central authorities processes and control module 33 to the radio receiving transmitting module 34 entrained signaling information that transmits control signal.Electronic tag 03 communicates according to the second information (signaling information) specified messaging parameter and predetermined communication protocol and reader 01, and after communicate by letter complete (identifying complete), electronic tag 03 recovers dormant state or changes voluntarily dormant state over to by the sleep command of reception reader 01 or the dormancy indication information of excitation controller 02.Compare with the method for stipulating in existing standard, the recognition methods that the present embodiment provides can be faster, identification label more accurately, and can support more Content of Communication and the agreement method of work more effective for the identification of the label of some rapid movements, for example: the identification of vehicle label, thereby the effective Negotiation speed of lifter motion label, and make systemic-function abundanter, using method is more flexible.This recognition methods not only can be processed single label rapidly, also can carry out general many tag recognition flow process as above, as patented claim " a kind of method of many labels access readers and device (application number: mentioned method 201010619525.5).
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the method that electronic tag is identified fast, is characterized in that, comprises the steps:
A) receive wake-up signal and will wake indication information up and extract;
B) reception control signal and its parsing is obtained the first information and the second information; Described the second information comprises label protocol working method, communication time series pattern and working channel information;
C) judge whether to wake up described electronic tag according to the described indication information that wakes up, in this way, execution in step D); Otherwise, will make described electronic tag continue to keep dormant state after described first information storage;
D) wake described electronic tag up, complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to the indicated identification process of described label protocol working method information;
E) described electronic tag enters dormant state.
2. the quick method of identification of electronic tag according to claim 1, is characterized in that, the described first information comprises the residing positional information of label or/and temporal information, and described the second information also comprises information rate or/and modulation system information.
3. the method for the quick identification of electronic tag according to claim 2, is characterized in that described step D) further comprise:
D1) wake described electronic tag up;
D2) judge according to described label protocol working method information whether its indicated identification process is quick identification process, in this way, execution in step D3); Otherwise, complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to general identification process, and execution in step D5);
D3) judge according to described communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product, in this way, described electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to described working channel information, and execution in step D5); Otherwise, execution in step D4);
D4) described electronic tag receive the read write command that reader sends and confirm as be lawful order after, reply data according to the indication of described read write command or predetermined content;
D5) described electronic tag enters dormant state.
4. the method for the quick identification of electronic tag according to claim 3, is characterized in that, described general identification process is many tag recognition agreement flow process.
5. the quick method of identification of the described electronic tag of according to claim 1 to 4 any one, it is characterized in that, described electronic tag is received and is entered dormant state after the outside sleep command that sends or complete after identification work from being advanced into dormant state according to predefined.
6. realize the electronic tag as claimed in claim 1 device of the method for identification fast for one kind, it is characterized in that, comprising:
Wake extraction module up: be used for receiving wake-up signal and waking indication information up extracting;
Control signal parsing module: be used for reception control signal and its parsing is obtained the first information and the second information; Described the second information comprises label protocol working method, communication time series pattern and working channel information;
Wake judge module up: be used for judging whether to wake up described electronic tag according to the described indication information that wakes up, and will make described electronic tag continue to keep dormant state after described first information storage when not waking up;
Wake up and identification module: be used for waking up described electronic tag, complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to the indicated identification process of described label protocol working method information;
Sleep block: be used for making described electronic tag enter dormant state.
7. the fast device of the method for identification of electronic tag of realizing according to claim 6, is characterized in that, the described first information comprises the residing positional information of label or/and temporal information, and described the second information also comprises information rate or/and modulation system information.
8. the fast device of the method for identification of electronic tag of realizing according to claim 7, is characterized in that, described wake up and identification module further comprises:
Wakeup unit: be used for waking up described electronic tag;
Identification process judging unit: be used for judging according to described label protocol working method information whether its indicated identification process is quick identification process, as not being complete the identifying of described electronic tag and transmit and receive data by the reader requirement according to general identification process;
Sequential judging unit: be used for judging according to described communication time series pattern information whether its indicated communication time series pattern is the electronic tag dairy product, in this way, described electronic tag sends the data of predetermined format and content at pre-specified frequency channel or schedule time channel according to described working channel information;
Reply the unit: be used for described electronic tag receive the read write command that reader sends and confirm as be lawful order after, reply data according to the indication of described read write command or predetermined content;
Dormancy unit: be used for making described electronic tag enter dormant state.
9. the electronic tag device of the method for identification fast of realizing according to claim 8, is characterized in that, described general identification process is many tag recognition agreement flow process.
10. the described fast device of the method for identification of electronic tag of realizing of according to claim 6 to 9 any one, it is characterized in that, described electronic tag is received and is entered dormant state after the outside sleep command that sends or complete after identification work from being advanced into dormant state according to predefined.
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| CN201310015548.9A CN103093170B (en) | 2013-01-16 | 2013-01-16 | A kind of electronic tag knows method for distinguishing and device fast |
| PCT/CN2013/070863 WO2014110842A1 (en) | 2013-01-16 | 2013-01-23 | Method and device for rapidly identifying electronic tag |
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| CN201310015548.9A CN103093170B (en) | 2013-01-16 | 2013-01-16 | A kind of electronic tag knows method for distinguishing and device fast |
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| CN103093170B CN103093170B (en) | 2015-08-05 |
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| WO (1) | WO2014110842A1 (en) |
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| CN103761548A (en) * | 2013-12-31 | 2014-04-30 | 电子科技大学 | Active RFID tag information interaction method |
| CN104537327A (en) * | 2014-12-29 | 2015-04-22 | 宁波百世信息科技有限公司 | Electronic tag reading method and device |
| CN104992564A (en) * | 2015-06-26 | 2015-10-21 | 苏州木兰电子科技有限公司 | System for counting passing vehicles based on RFID tag |
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| CN111950307B (en) * | 2020-07-02 | 2024-01-19 | 深圳创烽物联网技术有限公司 | Electronic price tag awakening system and method based on electromagnetic signals |
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| WO2022142446A1 (en) * | 2020-12-31 | 2022-07-07 | 华为技术有限公司 | Authentication method and communication apparatus |
| CN113365270A (en) * | 2021-06-15 | 2021-09-07 | 王云森 | RFID multi-label joint authentication system and method based on application of Internet of things |
| CN113365270B (en) * | 2021-06-15 | 2022-10-18 | 深圳市科易博软件有限公司 | RFID multi-label joint authentication system and method based on application of Internet of things |
| WO2024067381A1 (en) * | 2022-09-27 | 2024-04-04 | Qualcomm Incorporated | Extension of a data channel application id with a data channel tag |
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| CN103093170B (en) | 2015-08-05 |
| WO2014110842A1 (en) | 2014-07-24 |
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