CN103476096A - Active radio frequency tag communication method and active radio frequency tag - Google Patents
Active radio frequency tag communication method and active radio frequency tag Download PDFInfo
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- CN103476096A CN103476096A CN2012101853549A CN201210185354A CN103476096A CN 103476096 A CN103476096 A CN 103476096A CN 2012101853549 A CN2012101853549 A CN 2012101853549A CN 201210185354 A CN201210185354 A CN 201210185354A CN 103476096 A CN103476096 A CN 103476096A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an active radio frequency tag communication method and an active radio frequency tag which are used for solving the problem that an existing active radio frequency tag is immediately awakened when being in the coverage of a radio frequency antenna for a long time to cause too much battery power consumption in the prior art. The method comprises the following steps: the active radio frequency tag communicates with a corresponding radio frequency antenna after being awakened; when the communication process is finished, a data wake-up function is closed, the length of closed time is set, and the active radio frequency tag enters a state of dormancy; and the data wake-up function is enabled after the closed time ends. The active radio frequency tag of the invention is not immediately awakened when being in the coverage of a same radio frequency antenna for a long time so that battery power is saved and energy consumption is reduced.
Description
Technical field
The present invention relates to REID, relate in particular to a kind of active radio frequency label communication means and active radio frequency label.
Background technology
Radio-frequency (RF) identification (RFID, Radio Frequency Identify) is a kind of contactless automatic identification technology, by radiofrequency signal, automatically identifies destination object and obtains related data, and identification work need not manual intervention, can work in various adverse circumstances.The RFID technology can be identified high-speed moving object and can identify a plurality of labels simultaneously, swift and convenient to operate.
In general, complete radio-frequency recognition system mainly is comprised of radio-frequency (RF) tag, radio frequency read-write equipment and radio-frequency antenna and background computer system.According to radio-frequency (RF) tag inside, whether powered battery is arranged, radio-frequency (RF) tag can be divided into to active radio frequency label and passive RF label.
Passive RF label inside does not have powered battery, the electromagnetic wave that relies on read write line to send carrys out work, therefore Maintenance free in use procedure, used simply, but the transmission range of passive RF label is near, antijamming capability is poor and the memory space function singleness.
There is powered battery active radio frequency label inside, can rely on the energy of self to transmit, so transmission range is far away, antijamming capability is strong, memory space is larger, is used widely.Active radio frequency label comprises high-frequency radio frequency circuit, Single Chip Microcomputer (SCM) system, battery and antenna, be illustrated in figure 1 active radio frequency label structural representation in prior art, battery is responsible for to Single Chip Microcomputer (SCM) system and high-frequency radio frequency circuit supply, Single-chip Controlling high-frequency radio frequency circuit, radio frequency is by the antenna bag that transmits and receive data, and communicates with corresponding radio-frequency antenna.
The typical application of active radio frequency label is exactly to be applied to multilane Free-flow system, and multilane Free-flow system is a kind of quick ETC technology that any charge roadblock is not set, and vehicle need not slow down, and just can automatically complete fee collection.But the consumption along with label internal cell electric weight, need to change termly battery or charging, this has brought new problem to the use of active radio frequency label, how to extend the impulse discharge life-span of active radio frequency label internal cell, reduces the power consumption of active radio frequency label.In order to reduce the average power consumption of active radio frequency label, label is generally in resting state, and the high-frequency radio frequency circuit is not worked.Be illustrated in figure 2 the communication process that existing active radio frequency label is concluded the business in multilane Free-flow system:
Step S201: in the time of in vehicle enters the radio-frequency antenna scope, wake active radio frequency label up, make label in running order.
Step S202: receive the packet that corresponding radio-frequency antenna sends, carry out the dissection process of packet, start the communication process of charge transaction.
Step S203: judge in the process of exchange of being charged that whether transaction is successful, if success forwards step S205 to, directly enter dormancy, wait for next time and wake up.If transaction is success not, forward step S204 to.
Step S204: whether the judgement transaction is overtime, forwards step S205 if overtime to and makes label directly enter dormancy, again forwards the reception that step S202 carries out packet to if not overtime.
Step S205: label dormancy.
In order to reduce the power consumption of active radio frequency label, after finishing, the communication process of whole transaction enters the resting state of power saving, but the data arousal function of active radio frequency label is always in running order, if active label is always in the scope in antenna cover, it still can receive the packet that radio-frequency antenna sends, and label is waken up at once, judge whether again to be concluded the business, if need be in transaction, label enters resting state, the circulation so gone round and begun again.
The inventor, in implementing process of the present invention, finds the method that above-mentioned existing active radio frequency label communicates, and has following technical problem:
After the communication process of transaction finishes, but active radio frequency label is still in the coverage in radio-frequency antenna the time, label can be waken up at once, and may be being waken up repeatedly, constantly carry out the reception of packet, yet only need to carry out the processing of a data flow in same radio-frequency antenna coverage, so it is skimble-skamble repeatedly waking the electric weight of label consumption up, cause the battery power consumption too much, battery life is too short, does not fundamentally solve the problem that reduces power consumption.
Summary of the invention
The purpose of this invention is to provide a kind of active radio frequency label communication means and system, to solve in prior art active radio frequency label for a long time when the radio-frequency antenna coverage, label is waken up the problem that causes the battery power consumption too much at once.
The objective of the invention is to be achieved through the following technical solutions:
One aspect of the present invention provides a kind of active radio frequency label communication means, and the method comprises:
After active radio frequency label is waken up, with corresponding radio-frequency antenna, communicate;
When this communication process finishes, close the data arousal function and arrange and close duration, enter resting state;
Reach described close duration after, enable described data arousal function.
The present invention also provides a kind of active radio frequency label on the other hand, and this active radio frequency label comprises:
The Data Stream Processing unit, after being waken up when active radio frequency label, communicate with corresponding radio-frequency antenna;
Data arousal function closing unit, for when this communication process finishes, close the data arousal function, enters resting state;
The duration control unit, close the duration of closing of data arousal function for described data arousal function closing unit is set, after the time reaches described data arousal function and closes duration, enable described data arousal function.
Active radio frequency label communication means provided by the invention and system reach following beneficial effect: when active radio frequency label completes communication process, close the data enable function and arrange and close duration, make when label is for a long time in same radio-frequency antenna coverage, can not be waken up at once, save the battery power consumption, reduced energy consumption.
The accompanying drawing explanation
Fig. 1 is active radio frequency label structural representation in prior art;
Fig. 2 is the communication flow diagram that existing active radio frequency label is concluded the business in multilane Free-flow system;
Fig. 3 is active radio frequency label communication means flow chart provided by the invention;
The communication process flow chart that Fig. 4 is concluded the business in multilane Free-flow system for the active radio frequency label that the embodiment of the present invention provides;
Fig. 5 forms block diagram for the active radio frequency label that the embodiment of the present invention provides.
Embodiment
The invention provides a kind of active radio frequency label communication means, active radio frequency label is waken up afterwards and completes one time communication process, close the data arousal function and arrange and close duration, enter resting state, make when label is for a long time in same radio-frequency antenna coverage, can not be waken up at once, save the battery power consumption, reduce energy consumption.
The embodiment of the present invention one provides a kind of active radio frequency label communication means, realization flow as shown in Figure 3:
Step S301: be waken up after active radio frequency label enters the coverage of radio-frequency antenna.
Step S302: after active radio frequency label is waken up, communicate with corresponding radio-frequency antenna.
Step S303: when this communication process finishes, close the data arousal function and arrange and close duration, enter resting state;
Step S304: reach described close duration after, enable described data arousal function.
The above-mentioned active radio frequency label communication means that the embodiment of the present invention one provides, when active radio frequency label completes a communication process, close the data arousal function and enter resting state, make when label is for a long time in same radio-frequency antenna coverage, can not be waken up at once, saved the battery power consumption, reduced energy consumption, close duration owing to being provided with the data arousal function simultaneously, after reaching and closing duration, the enable data arousal function, while guaranteeing that active radio frequency label enters into the coverage of next radio-frequency antenna, can be waken up in time, still can normally carry out Data Stream Processing.
Preferably, in the embodiment of the present invention, before active label enters resting state, timer can be set, by set timer, close duration, and close the data arousal function in closing in duration of arranging.By timer is set, the duration of closing of data arousal function can be set on the one hand, can utilize on the other hand the interrupt function enable data arousal function of timer, when reaching the time of set timer, enable data arousal function at once.
The embodiment of the present invention two be take above-mentioned active radio frequency label communication means and is applied to multilane Free-flow system and is elaborated as example, as shown in Figure 4, does not certainly regard it as and is limited, and the method can be applicable to various scenes.
Step S401: in the time of in vehicle enters the radio-frequency antenna scope, label is waken up, and in running order.
Step S402: the packet that the received RF antenna sends, carry out the dissection process of packet, the communication process that starts the charge transaction.
Step S403: judge in the process of exchange of being charged that whether transaction is successful, judge whether the handling process of data flow finishes, if success forwards step S404 to, if transaction does not have success, forward step S406 to.
Step S404: close the data arousal function.Owing to having closed the data arousal function, make label directly enter resting state, at this moment the microwave signal of radio-frequency antenna can't be waken label up, and, because label has entered resting state, has reduced the battery power consumption.
Step S405: timer is set before dormancy, by this set timer data arousal function, closes duration T, active radio frequency label can be waken up in the time at T, T after second the data arousal function label can be waken up.The value of T can be that the user sets arbitrarily according to actual conditions, too large but the value of T can not arrange, otherwise can miss the chance of again concluding the business with other radio-frequency antenna; Same T arranges too short, and the increased frequency that makes label be waken up, cause power consumption larger.
Step S406: whether the judgement transaction is overtime, judge that whether this communication process is overtime, forward step S407 if overtime to and make label directly enter dormancy, if overtime, again do not forward the reception that step S202 carries out packet to, proceed the handling process of data flow.
Step S407: label dormancy.
Preferably, after timer reaches the time period of setting, label can be waken up by the data arousal function, after waking up, label is resolved the ID(IDentity of radio-frequency antenna, the identify label number), if resolving the radio-frequency antenna ID obtained is the radio-frequency antenna of Successful Transaction last time, be set to the traffic congestion state, and timer is set, close the data arousal function, enter resting state, repeating step S404 is to the process of step S407, when not identical, show to carry out different transaction, receive the packet that current radio-frequency antenna sends, the front communication process of the trade of going forward side by side.
Below in conjunction with concrete practical application, be illustrated, the active radio frequency label major parameter is as follows: quiescent current 15uA, average current 30mA during work, battery capacity 1500mA/h, battery can be used ratio 70%, the time period of closing the data arousal function during dormancy is 5s, while being waken up rear discovery still for same radio-frequency antenna ID, and about 5ms of operating time.
If label is always in the radio-frequency antenna range of signal, electric current will keep 30mA always, and the tag battery electric weight is by 1500*0.7=1050mA/h, can maintain 1050/30=35h.
If close data arousal function dormancy 5s after waking up at every turn, waking the operating time up is 5ms, in 35h, has so 1/1000 time in running order, and all the other times are in resting state.Consumes power is about: 35* (0.001*30+0.999*0.015)=1.57mA/h.
Can see the reduction power consumption design by the embodiment of the present invention, owing to closing data arousal function dormancy 5s after waking up, do not respond wake-up interrupts in this time period, label power consumption in extreme traffic congestion situation accounts for the 1.57/1050=1.5% of battery electric quantity, has well met in the practical application and has reduced the requirement of power consumption.
By technique scheme of the present invention, obtain the method for designing that a kind of active radio frequency label economizes on electricity and reduces power consumption in multilane Free-flow system, solved label in multilane Free-flow system applies, when when traffic congestion, make vehicle for a long time under the radio-frequency antenna coverage, power consumption too much, the too short problem of battery life.And after timer reaches the time period of setting, judge whether current radio-frequency antenna ID is the radio-frequency antenna ID of Successful Transaction last time, when being the radio-frequency antenna ID of last transaction, continue to close described data arousal function and timer is set, enter resting state, can not wake up at once after label and close label at once, and because only after reaching the time period of setting, just wake label up, avoid repeatedly repeatedly waking up label, reached the purpose that reduces power consumption.
The embodiment of the present invention three also provides a kind of active radio frequency label to reduce the system of power consumption, and as shown in Figure 5, this system comprises the formation of this system:
Data Stream Processing unit 51, after being waken up when active radio frequency label, communicate with corresponding radio-frequency antenna, and carry out the handling process of data flow.
Data arousal function closing unit 52, for when this communication process finishes, close the data arousal function, enters resting state.
Wherein, duration control unit 53 can be when certain device, before at active radio frequency label, entering resting state, set the duration of closing described radiofrequency signal response function, and reach described close duration after, enable described radiofrequency signal response function by described timer.
Preferably, this active label also comprises a judging unit, after enabling described data arousal function for described duration control unit 53, when again waking described active radio frequency label up, with the last time, to communicate the radio-frequency antenna ID of process identical to judge current radio-frequency antenna Identity Code ID
When identical, close described data arousal function and timer is set, enter resting state;
When not identical, communicate with current radio-frequency antenna, and carry out the handling process of data flow.
Concrete, the process that described Data Stream Processing unit 51 carries out Data Stream Processing comprises:
Judge whether described communication process finishes;
When described communication process finishes, close described data arousal function, arrange and close duration and enter resting state;
When described communication process does not finish, judge that whether described communication process is overtime, when described communication process is overtime, enter resting state; When described communication process is not overtime, continue to receive packet, carry out the handling process of described data flow.
The system of the reduction active radio frequency label power consumption that the embodiment of the present invention provides, when active radio frequency label completes communication process, close the data enable function and arrange and close duration, make when label is for a long time in same radio-frequency antenna coverage, can not be waken up at once, saved the battery power consumption, reduced energy consumption, and close duration by set timer, while not only guaranteeing that active radio frequency label enters into the coverage of next radio-frequency antenna, still can normally carry out Data Stream Processing, and can utilize preferably its interrupt function, can the enable data arousal function when reaching timing length.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. an active radio frequency label communication means, is characterized in that, the method comprises:
After active radio frequency label is waken up, with corresponding radio-frequency antenna, communicate;
When this communication process finishes, close the data arousal function and arrange and close duration, enter resting state;
Reach described close duration after, enable described data arousal function.
2. active radio frequency label communication means as claimed in claim 1, is characterized in that, described active radio frequency label comprises before entering resting state:
Timer is set, sets the duration of closing described radiofrequency signal response function by described timer, and reach described close duration after, enable described radiofrequency signal response function by described timer.
3. active radio frequency label communication means as claimed in claim 1, it is characterized in that, after enabling described data arousal function, when described active radio frequency label is waken up again, the method also comprises: with the last time, to carry out the radio-frequency antenna ID of Data Stream Processing identical to judge current radio-frequency antenna Identity Code ID
When identical, close described data arousal function and arrange and close duration, enter resting state;
When not identical, communicate with current radio-frequency antenna, and carry out the handling process of data flow.
4. active radio frequency label communication means as claimed in claim 1, is characterized in that, in the process that described and corresponding radio-frequency antenna communicates, comprising:
Judge whether described communication process finishes;
When described communication process finishes, close described data arousal function and arrange and close duration, enter resting state;
When described communication process does not finish, judge that whether described communication process is overtime, when described communication process is overtime, enter resting state; When described communication process is not overtime, proceed current communication process.
5. an active radio frequency label, is characterized in that, this active radio frequency label comprises:
The Data Stream Processing unit, after being waken up when active radio frequency label, communicate with corresponding radio-frequency antenna;
Data arousal function closing unit, for when this communication process finishes, close the data arousal function, enters resting state;
The duration control unit, close the duration of closing of data arousal function for described data arousal function closing unit is set, after the time reaches described data arousal function and closes duration, enable described data arousal function.
6. active radio frequency label as claimed in claim 5, is characterized in that, described duration control unit is timer.
7. active radio frequency label as claimed in claim 5, it is characterized in that, this active label also comprises a judging unit, for described enable the described data arousal function of cell enable after, when described active radio frequency label is waken up again, with the last time, to communicate the radio-frequency antenna ID of process identical to judge current radio-frequency antenna Identity Code ID
When identical, close described data arousal function and arrange and close duration, enter resting state;
When not identical, communicate with current radio-frequency antenna, and carry out the handling process of data flow.
8. active radio frequency label as claimed in claim 5, is characterized in that, described Data Stream Processing unit carries out in the process of Data Stream Processing, also for:
Judge whether described communication process finishes;
When described communication process finishes, close described data arousal function and arrange and close duration, enter resting state;
When described communication process does not finish, judge that whether described communication process is overtime, when described communication process is overtime, enter resting state; When described communication process is not overtime, continue to receive packet, carry out the handling process of described data flow.
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| CN2012101853549A CN103476096A (en) | 2012-06-07 | 2012-06-07 | Active radio frequency tag communication method and active radio frequency tag |
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| CN2012101853549A CN103476096A (en) | 2012-06-07 | 2012-06-07 | Active radio frequency tag communication method and active radio frequency tag |
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Cited By (5)
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| CN105322977A (en) * | 2015-11-10 | 2016-02-10 | 上海十贝电子科技有限公司 | Low-power-consumption data receiving device and method for active RFID tag |
| CN106530080A (en) * | 2015-09-14 | 2017-03-22 | 成都娇子意航星科技有限公司 | Dormant transaction matchmaking method based on queue dynamic change |
| CN109086638A (en) * | 2018-06-08 | 2018-12-25 | 深圳成谷科技有限公司 | A kind of method and CPC card for saving CPC card power consumption in traffic congestion |
| CN112738762A (en) * | 2020-12-25 | 2021-04-30 | 高新兴智联科技有限公司 | System and method for combining C-V2X RSU and automobile electronic identification RSU |
| CN112734957A (en) * | 2020-12-25 | 2021-04-30 | 高新兴智联科技有限公司 | ETC (electronic toll Collection) special short-range communication-based vehicle-road cooperation system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106530080A (en) * | 2015-09-14 | 2017-03-22 | 成都娇子意航星科技有限公司 | Dormant transaction matchmaking method based on queue dynamic change |
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| CN112734957A (en) * | 2020-12-25 | 2021-04-30 | 高新兴智联科技有限公司 | ETC (electronic toll Collection) special short-range communication-based vehicle-road cooperation system and method |
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Effective date of registration: 20160905 Address after: 300308 Tianjin Airport Economic Zone, Binhai New Area seven East Road No. 2 Zhongxing Industrial Base Applicant after: ZTE INTELLIGENT IOT TECHNOLOGY CO., LTD. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Applicant before: ZTE Corporation |
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Application publication date: 20131225 |