CN101441706B - Double-activating method of active electronic label - Google Patents
Double-activating method of active electronic label Download PDFInfo
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- CN101441706B CN101441706B CN200810197949XA CN200810197949A CN101441706B CN 101441706 B CN101441706 B CN 101441706B CN 200810197949X A CN200810197949X A CN 200810197949XA CN 200810197949 A CN200810197949 A CN 200810197949A CN 101441706 B CN101441706 B CN 101441706B
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Abstract
The invention relates to a method for bi-activating an active electronic tag, in particular to a method for activating an active electronic tag in the state of semi-dormancy by means of timing activation, and a method for activating the active electronic tag in the state of complete dormancy by means of passive activation. Two activation modes achieve free conversion by using a reader-writer, and the mode of passive activation is always effective in the life cycle of the whole active electronic tag. In the process of passive activation, passive activation equipment generates continuous low frequency signals, and sends the self ID. The signals are received by passive receiving equipment to generate a pulse signal, which is to be transmitted into the tag to activate an internal circuit of the tag and make the state of the tag converted into working from complete dormancy. The method can ensure that the active electronic tag works coordinately under the control of two activation modes to be awoken within 1ms, ensure practicability and reliability of the reading and writing of data, and prolong the service life of the active electronic tag with low energy consumption.
Description
Technical field
Patent of the present invention relates to electronic label technology, particularly about the Activiation method problem of active electronic label serviceable life and recognition real-time aspect.
Background technology
Along with the progress and the development of society, active electronic label has obtained widespread use.The supplying cell finite capacity of active formula electronic tag must take effective Low-power Technology could prolong its serviceable life, reduces its use cost.The power consumption of electronic tag not only depends on the power consumption of the chip that uses itself, more depend on system-level low power consumption design method, particularly utilize the Activiation method of electronic tag, control the conversion of its dormancy and state of activation, can reduce the electronic tag dynamic power consumption greatly, prolong its life-span.
Present active electronic label all is based on " regularly Activiation method " and saves the energy content of battery, most of the time is in dormant state to electronic tag at ordinary times, when the timer timing time to then producing a microcontroller that regularly interrupts waking up label, electronic tag begins to carry out identifying according to the state exchange rule, after finishing, task is returned to dormant state again, restart timing simultaneously, be activated once again up to label.Several problems below regularly Activiation method exists:
(1) do not having under the situation of read write line, label also can be timed activation, and power consumption is intercepted in waste;
(2) if the dormancy time of label is long, label may in time respond in the demand of reading and writing data, can not requirement of real time.If the dormancy time that is provided with is too short, label is repeated to activate, and power consumption is more intercepted in waste.
(3) timer is arranged all the time in work, consume battery power in the label.
As seen, can not reach best effect only according to the timing Activiation method.
Summary of the invention
Technical matters to be solved by this invention is: the double-activating method that a kind of active electronic label is provided, this method can make electronic tag in its work life cycle, both can activate by passive mode, also can activate by timing mode, simultaneously two kinds of Activiation methods can co-ordination, automatically change, active electronic label can be discerned by read write line in real time, and prolong the serviceable life of electronic tag.
The technical scheme that the present invention solves its technical matters is: employing timing active mode makes the method for the active electronic label activation that is in the semidormancy state, the method that adopts passive active mode that the active electronic label of thorough dormant state is activated, also adopt read write line to make two kinds of active modes realize freely changing, passive active mode is continuously effective in the life cycle of whole active electronic label.In the process of passive activation, produce continuous low frequency signal by passive activated equipment earlier, and send self the numbering, these signals produce a pulse signal after passive receiving equipment receives, and be sent to this pulse signal in the described label and activate the internal circuit of this label, make this label be transformed into duty by thorough dormant state.
The present invention is the defective that overcomes prior art, invented a kind of double-activating method of active electronic label, it mainly contains following significant effect: the passive Activiation method that has proposed continuously effective in the life cycle of whole active electronic label, and with passive activation and regularly activation combination, the automatic conversion of two kinds of methods of control guarantees active electronic label co-ordination under double-activating method control.Utilize double-activating method, active electronic label is waken up in 1ms, guarantee the reading and writing data real-time, in the whole application life of the active electronic label time, average working current disposes the battery of 960mAH less than 15uA, and the active electronic label life-span can reach more than 8 years.
In a word, real-time of the present invention and reliability height, the power supply energy consumption is low, can prolong the serviceable life of active electronic label.
Description of drawings
Fig. 1 is the state transition graph under the timing method among the present invention.
Fig. 2 is the state transition graph under the passive Activiation method among the present invention.
Embodiment
The double-activating method of active electronic label provided by the invention comprises: with the method that active mode regularly activates the active electronic label that is in the semidormancy state, the method that adopts passive active mode that the active electronic label of thorough dormant state is activated; Also adopt read write line, make two kinds of active modes realize freely changing, passive active mode is continuously effective in the life cycle of whole active electronic label.In the process of passive activation, produce continuous low frequency signal by passive activated equipment earlier, and send self the numbering, these signals produce a pulse signal after passive receiving equipment receives, and be sent to this pulse signal in the described label and activate the internal circuit of this label, make this label be transformed into duty by thorough dormant state.
At the active electronic label of passive activation work, it mainly contains thorough dormant state, semidormancy attitude and the attitude (see figure 2) of communicating by letter.Thorough dormant state: refer to comprise timer interior, all parts of label all quit work.The semidormancy attitude: if bump with other electronic tag, temporary transient dormancy a period of time of active electronic label then.Communication attitude: set up with read write line and effectively be connected, realized the transmission of data.
Active electronic label in passive Activiation method work, its duty transfer process is: after the active electronic label of dormant state is received passive activation signal, produce a pulse signal by the low frequency receiving circuit, this pulse enable signal active electronic label controller produces and interrupts, active electronic label is waken up, enter communications status immediately.At first send the application signal to read write line, application is communicated by letter with read write line.If after receiving the affirmation signal that read write line returns, promptly set up effective connection, agreement is according to the rules carried out exchanges data, after exchange is finished, enters thorough dormant state, and puts and read zone bit.If in the regular hour, do not receive the response of read write line, then think to bump with other labels, promptly enter the semidormancy state, the timing wake-up of waiting for next time.If in a period of time of setting, still can not connect, then think outside the read write line effective range, to enter thorough dormant state immediately.When the label of semidormancy attitude is waken up, still enter the communication attitude.After active electronic tag enters the communication attitude,, transmit entrained information and give read write line according to the order that read write line sent.Active electronic label just can be realized once complete communication according to the method described above.
The timer function that the present invention directly utilizes microcontroller to carry realizes that active electronic label is carried out timing to be activated.The duty of the active electronic label of working under the timing Activiation method mainly contains following four kinds, as shown in Figure 1:
Dormant state: except that timer, all parts of active electronic label all quit work.
Channel inquiry attitude: whether active electronic label exists effective read write line signal after being waken up by certain incident on the queried channel.
The semidormancy attitude: if bump with other electronic tag, temporary transient dormancy a period of time of active electronic label then.
Communication attitude: set up with read write line and effectively be connected, realized the transmission of data.
The duty transfer process of the active electronic label of working under the timing Activiation method is: the timer function that the enforcement of timing Activiation method can directly utilize microcontroller to carry is realized.Active electronic label at ordinary times the most of the time be in dormant state, microcontroller inside has only a timer still in work during this label dormancy, other parts all quit work, and have only the timer clock circuit to produce dynamic power consumption; Set a time interval, when the timer timing time to then producing a microcontroller that regularly interrupts waking up label, electronic tag begins to carry out identifying, is returned to dormant state after task is finished again, restart timing simultaneously, be activated once again up to label.
The present invention adopts following method to realize freely changing of two kinds of active modes:
Can realize by the combination of above-mentioned two kinds of active modes, and control freely changing of these two kinds of active modes by read write line.After each read-write, which kind of Activiation method electronic tag converts to and is subjected to read write line control, mainly realizes by changing electronic tag Activiation method zone bit FLAG_ACTIVE.
Forward regularly state of activation to by passive state of activation: after active electronic label is activated by passive active mode and finishes read-write by read write line, if the read write line transmitting control commands makes the FLAG_ACTIVE in the active electronic label put 1, then the electronic tag microcontroller starts timer clock, active electronic label forwards regularly state of activation to, and passive state of activation is still effective simultaneously.
Forward passive state of activation to by the timing state of activation: after active electronic label is timed that active mode activates and finishes read-write by read write line, if the read write line transmitting control commands makes the FLAG_ACTIVE in the active electronic label put 0, then timer cuts out, and active electronic label forwards passive state of activation to.
Active electronic label is in the different operating state under different conditions, when condition changed, state was also ensued corresponding variation, and the process of state exchange is:
In most cases, active electronic label (being called for short this label) is in dormant state, and parts all on this label all quit work.
When active electronic tag microcontroller timer internal count down to dormancy awakening after the time, active electronic label forwards regularly state of activation to, and active circuit produces and interrupts the active electronic label controller is waken up, enters channel inquiry attitude.When being in channel inquiry attitude, the channel that this searching label is possible detects the useful signal that whether exists read write line to send.
If the read write line signal exists, and ID detects and is masked as 1, represents that it is read, and this label returns dormant state immediately; If the read write line signal does not exist, think that then outside the read write line effective range, this label enters dormant state immediately; If the read write line signal exists, and ID detects and is masked as 0, then sends the application signal on corresponding channel, and application is communicated by letter with read write line, after receiving the affirmation signal that read write line returns, has promptly set up effective connection, and this label enters the communication attitude.
If in the regular hour, do not receive the response of read write line, think that then this label and other label bump, according to certain algorithm, dormancy a period of time, this label enters the semidormancy state.
In the communication attitude, if in the regular hour, can't receive the lawful order of read write line, communication failure, this label returns dormant state immediately; In the communication attitude, if finish communication, this label then enters dormant state.
The passive activated equipment that the present invention adopts comprises microcontroller, low frequencies circuit and tours antenna, and wherein: microcontroller connects the low frequencies circuit by the I/O mouth, and the low frequencies circuit links to each other with tours antenna by antennal interface.Microcontroller can adopt the MSP430F1221 chip, or similar chip.The low frequencies circuit is provided with low frequency and activates transmitter, and low frequency activates the ATA5276 chip that transmitter can adopt Atmel company to produce, or similar chip; This chip by external microcontroller control, by aerial coil emission 125kHz low frequency carrier signal signal, transmits energy and numbering data by the DIO pin of a mongline bidirectional interface.The DIO pin of external microcontroller control ATA5276 is in high level at ordinary times, one have low level then ATA5276 enter sending mode (Transmission Mode) by standby mode (Standby Mode).DIO after transmission finishes sends undersuing notice microcontroller and sends successfully.Therefore, the transmission of activation signal can be passed through microprocessor controls, satisfies the requirement on the system sequence.
Described passive activated equipment can adopt fixed, is powered by external power supply; Perhaps adopt portable, battery-powered.
The passive receiving equipment that the present invention adopts comprises low frequency receiving circuit and loop receiving antenna, be arranged in active electronic label, wherein: loop receiving antenna links to each other with the antennal interface of low frequency receiving circuit, and fracture links to each other in the microcontroller in the output signal line of low frequency receiving circuit and the active electronic label.The ATA5283 chip that the low frequency receiving circuit can adopt Atmel company to produce, or similar chip.The ATA5283 chip is the IC that wakes up that a super low-power consumption has sequence head (Preamle) detecting function, and operating voltage range is 2V～3.6V, and it is in standby listen mode (Standby ListenMode) before receiving data, and power consumption only is 1uA.Therefore, after active electronic label increased passive active circuit, power consumption did not almost increase.
Obtain the energy that passive activated equipment end aerial coil emits by the loop receiving antenna coil by inductive coupling, induced voltage makes the resonant tank starting of oscillation.As long as the effective value of resonance potential is greater than 1mV, ATA5283 just can produce corresponding actions, and in N_WAKEUP pin output low level, the singlechip interruption pin produces interruption after receiving this signal, wakes the electronic tag each several part up and starts working.Microcontroller MCU can obtain the serial data of ASK demodulation output by the N_DATA pin that reads ATA5283.Receive in the process of data, the power consumption of ATA5283 is 2uA.Receive when microcontroller MCU judgment data, provide the RESET pin of a high level to ATA5283, then it can get back to the standby listen mode.Receive the low frequency activation signal to waking electronic tag up from passive receiving circuit, required time is less than 1ms.
Claims (7)
1. the double-activating method of an active electronic label comprises the method that makes the active electronic label activation that is in the semidormancy state with the timing active mode, it is characterized in that: the method that adopts passive active mode that the active electronic label of thorough dormant state is activated; Also adopt read write line, make two kinds of active modes realize freely changing, passive active mode is continuously effective in the life cycle of whole active electronic label; In the process of passive activation, produce continuous low frequency signal by passive activated equipment earlier, and send self the numbering, these signals produce a pulse signal after passive receiving equipment receives, and be sent to this pulse signal in the described label and activate the internal circuit of this label, make this label be transformed into duty by thorough dormant state
Specifically be to adopt following method to realize freely changing of two kinds of active modes:
Forward regularly state of activation to by passive state of activation: after active electronic label is activated by passive active mode and finishes read-write by read write line, if the read write line transmitting control commands makes the FLAG_ACTIVE in the active electronic label put 1, then regularly active mode starts, timer work, active electronic label forwards regularly state of activation to, and passive state of activation is still effective simultaneously;
Forward passive state of activation to by the timing state of activation: after active electronic label is timed that active mode activates and finishes read-write by read write line, if the read write line transmitting control commands makes the FLAG_ACTIVE in the active electronic label put 0, then passive active mode starts, timer cuts out, and active electronic label forwards passive state of activation to.
2. the double-activating method of active electronic label according to claim 1, it is characterized in that passive activated equipment comprises microcontroller, low frequencies circuit and tours antenna, wherein: microcontroller connects the low frequencies circuit by the I/O mouth, and the low frequencies circuit links to each other with tours antenna by antennal interface.
3. the double-activating method of active electronic label according to claim 2 is characterized in that microcontroller adopts the MSP430F1221 chip.
4. the double-activating method of active electronic label according to claim 2 is characterized in that the low frequencies circuit is provided with low frequency and activates transmitter, and low frequency activates transmitter and adopts the ATA5276 chip.
5. the double-activating method of active electronic label according to claim 1, it is characterized in that passive receiving equipment comprises low frequency receiving circuit and tours antenna, be arranged in active electronic label, wherein: tours antenna links to each other with the antennal interface of low frequency receiving circuit, and fracture links to each other in the microcontroller in the output signal line of low frequency receiving circuit and the active electronic label.
6. the double-activating method of active electronic label according to claim 5 is characterized in that the low frequency receiving circuit adopts the ATA5283 chip.
7. the double-activating method of active electronic label according to claim 1 and 2 is characterized in that passive activated equipment employing is fixed, and it is powered by external power supply; Perhaps adopt movable type, it is battery-powered.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810197949XA CN101441706B (en) | 2008-11-28 | 2008-11-28 | Double-activating method of active electronic label |
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| CN200810197949XA CN101441706B (en) | 2008-11-28 | 2008-11-28 | Double-activating method of active electronic label |
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| CN101441706A CN101441706A (en) | 2009-05-27 |
| CN101441706B true CN101441706B (en) | 2011-05-11 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8261971B2 (en) | 2010-06-30 | 2012-09-11 | Hong Kong Applied Science And Technology Research | Self-powered electronic label |
| FR2963453A1 (en) * | 2010-08-02 | 2012-02-03 | Michelin Soc Tech | METHOD FOR UPDATING A DATABASE FOR MANAGING A VEHICLE FLEET |
| CN102831364B (en) * | 2011-06-16 | 2016-11-23 | 天津中兴智联科技有限公司 | A kind of wakeup signal matching method, device and label |
| CN102254215A (en) * | 2011-07-22 | 2011-11-23 | 深圳市翌日科技有限公司 | Active electronic tag, card-swiping device and access control system |
| CN103164730A (en) * | 2011-12-09 | 2013-06-19 | 苏州木兰电子科技有限公司 | Dual-frequency radio frequency electronic tag |
| CN102663456B (en) * | 2012-02-01 | 2015-09-16 | 深圳市华士精成科技有限公司 | One is active radio frequency identification system closely |
| CN102595575B (en) * | 2012-02-27 | 2014-08-13 | 杭州星纬物联技术有限公司 | Full-network low-power-consumption algorithm using active and passive nodes by turns |
| CN103476096A (en) * | 2012-06-07 | 2013-12-25 | 中兴通讯股份有限公司 | Active radio frequency tag communication method and active radio frequency tag |
| CN105787545B (en) * | 2013-11-27 | 2019-02-01 | 苏州木兰电子科技有限公司 | Anti-interference dual band radio frequency identification device |
| CN105787544B (en) * | 2013-11-27 | 2019-02-01 | 苏州木兰电子科技有限公司 | Double-frequency electronic label system |
| CN103646230B (en) * | 2013-11-27 | 2017-03-15 | 苏州木兰电子科技有限公司 | Radio-frequency recognition system based on double-frequency electronic label |
| CN103996066B (en) * | 2014-04-15 | 2017-01-04 | 深圳市康英科技有限公司 | A kind of electronic location wrist strap |
| CN106355218A (en) * | 2016-08-19 | 2017-01-25 | 成都九洲电子信息系统股份有限公司 | Active electronic tag system for positioning accurately |
| CN110659531A (en) * | 2018-09-26 | 2020-01-07 | 湖北用芯物联科技有限公司 | Semi-active RFID electronic tag system and method |
| CN113033225A (en) * | 2021-03-08 | 2021-06-25 | 北京布科思科技有限公司 | Multi-label random working method and device, equipment and storage medium |
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