CN102129579B - System and method for improving reading-writing mode of ISO-18000-7 international standard label - Google Patents
System and method for improving reading-writing mode of ISO-18000-7 international standard label Download PDFInfo
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Abstract
The invention provides a method for defining a signal having a required radio frequency characteristic into an instruction signal requiring a label to execute certain or a certain group of pre-determined operation by using the radio frequency characteristic, different from the radio frequency characteristics of other wireless signals, of a wireless data signal and a characteristic that quick identification can be performed through a radio frequency transceiver, and using a working frequency channel of a jump label simultaneously in order to solve the problem that a reader-writer represented by the international standardization organization (ISO)-18000-7 international standard wastes time and power during reading and writing of data on the label, so the problem that the battery life of the wireless communication equipment which is represented by an active electronic label and has low power consumption requirement is short can be solved basically. In the combination of a fixed time slot distribution mode, the speed and the efficiency of reading and writing the label on the basis of the ISO-18000-7 standard are greatly improved. Although the ISO-18000-7 defines an electronic label system having a 433M frequency band, the method can be applicable to any other wireless communication frequency bands and wireless communication systems.
Description
Technical field
The present invention relates to the international standard of active electronic label, particularly in the ISO-18000-7 standard to the whole Card read/write process of label.
Background technology
ISO-18000-7 (later on abbreviation standard) is one and generally acknowledges maturation and have 433,000,000 active electronic label international standards of extensive impact, and brought into use in U.S. army.The whole bag of tricks that wherein adopts, the particularly most important link-reading/writing method of label information is received invariably people's very big concern wherein, engineers is also constantly improved it hardy, and the present invention is a kind of like this effort.
In standard, system carries out like this to the read-write process of label information: for the purpose of power saving, label is in a kind of periodic sleep of using internal clocking to control usually, the flashy state of rear monitoring wake-up signal of reviving, because error and other a variety of causes of internal clocking, the time that label is revived in a sleep cycle is random.Read write line wakes the label in all read write line signal covers up first by launch continuously the 2.45-4.8 wake-up signal of second to label, makes it enter a kind of state that receives from the read write line command signal of waiting for.Label will continue to keep at least 30 seconds of this accepting state after receiving command signal, then get back to sleep state, unless receive command signal from read write line at waiting time.After all labels are waken up, read write line will at first gather the instruction of label information to all label emissions in the mode of broadcasting, in this instruction, include the temporal information of passing to label, initial number of timeslots N (because total quantity of the label that system and not knowing is waken up, the N here also is an empirical value) information etc., each label is after receiving this command information, all will produce the one's own random integers I of one≤N, carry out simultaneously time synchronized, and I time slot in N communication time slot of read write line arrangement launched information to read write line; Because I is random the generation, it can not be corresponding one by one with N the time slot that read write line provides, thereby, in N time slot, thereby the situation that a plurality of labels emission information in same time slot causes collision may appear, the situation that simultaneously some time slot byes is arranged again and do not have label to transmit, read write line will according to bumping in each window and the probability of bye, be adjusted the quantity of time slot window.Each label after the instruction that receives the read write line Information Monitoring, is only launched signal one time at every turn.After the acknowledgement information that receives the successful launch that read write line returns, to or enter with the dormancy state according to the instruction of read write line (depend on the type of label itself and use needs), or keep the point-to-point Card read/write instruction that accepting state waits for that read write line is newly launched.
Take turns in the information acquisition process because the reason of signal collision does not have the label of successful launch at this for those, need then to wait for that read write line is with the new round label information acquisition instructions of broadcast mode issue, and produce new random number, and corresponding time slot position emission in M the time slot window that read write line newly provides, so repeatedly carry out until finish Card read/write to all labels that are waken up.Referring to the ISO-18000-7 international standard.
Here the problem that exists is: above whole label information read-write process, be actually the snoop procedure after first a label being revived at random, become the nonrandom process of waiting for simultaneously the instruction of reception read write line for all labels, then taking turns read write line at each gathers in the process of label information, recycling label self produces the method for random number, the process that label is transmitted changes back to a random process again, does like this to make whole read-write process become very very long.Secondly, because label is in a plurality of repetitive processes of whole read write line read write tag, all must be at any time and to wait for the accepting state that receives read write line job placement command signal, until it finishes the information interchange with read write line, this is just so that label is in the state of high power consumption for a long time.Its as a result read write line each read-write process of label is not only required a great deal of time, but also can consume a large amount of energy of label, thereby reduce the serviceable life of battery.This method obviously can not be applicable to the read-write to label in the fast moving, can not support the function of general real-time location.
In existing data communication, information is to transmit with the form of packet in addition, and a packet must comprise synchronizing information, address information, the several parts of data message and Data correction.Thereby, be from a packet obtaining information, just must receive whole data-signal bag could resolve the data-signal bag, this has been a kind of off the record regulation.But some special occasions in actual applications, a large amount of time of receiver of will wasting of doing like this and consume a large amount of energy of receiver.Particularly for those battery-operated Wireless Telecom Equipments of use that comprise active electronic label.Because for wireless signal, except aforesaid data message feature, its frequecy characteristic, modulation signature and coding characteristic also are the essential characteristics that the wireless data signal bag is different from other wireless signal, and these features can just can identify fast by wireless receiver itself, do not identify and do not need to receive whole data-signal bag.
Summary of the invention
The present invention is directed to take the ISO-18000-7 international standard as representative, the problem of the above-mentioned time-consuming power consumption that read write line is read and write label data, proposed a kind of simple and effective, based on interactive intelligent electronic tag I-RFID (being called for short later on label) and the fixing magnanimity label information fast reading and writing system and method for time slot allocation combination.Active electronic tag system on 433,000,000 radio bands although ISO 18000-7 is defined, but system and method provided by the present invention goes for any other wireless communication frequency band, and any other has the two-way radio communications system of low-power consumption requirement.Thereby label definition of the present invention has also just comprised having the Wireless Telecom Equipment that the low-power consumption economize on electricity requires on other frequency range.
The all hardware that the employed hardware of system of the present invention relates to, also comprise a telegon identical with the read write line structure in existing ISO-18000-7 standard.Telegon is operated in respectively on the different channels from read write line in the system, and read write line is connected with supervisory computer with telegon, and telegon also can work independently.Label is by time-division and the quick mode of redirect channel, can be operated in respectively on two different channels that telegon and read write line work.Referring to Figure of description 1.
The present invention has utilized in the wireless data communications, the radio frequency features that is different from other wireless signal that wireless data signal itself has, and the characteristics that can identify fast by transceiver itself, only need the moment after the label sleep is revived to monitor the very limited time (being enough to received signal is identified judgement), if the result who judges is irrelevant signal (no signal, or modulation or the different radiofrequency signal of coded system), then stop immediately receiving and getting back to the state that periodic sleep is monitored.And those radiofrequency signals with correlated characteristic are pre-defined for to need label to carry out the instruction of some simple motion, this has just greatly shortened the each listening period of sleeping after reviving of label, greatly prolong tag battery serviceable life, brought greater flexibility also for simultaneously the working method of label.Referring to Figure of description 2
Label among the present invention is in periodic sleep usually, wakes up after reviving and monitors the flashy low power consumpting state of wake-up signal on the channel.And telegon is operated in and wakes up on the channel.When the needs label is worked, telegon will be in the length of waking up on the channel according to the sleep wake-up period of label, mode to broadcast within one short period, the continual emission to label wakes command signal up continuously, after label receives wake-up signal, will jump on the working channel of read write line and communicate with read write line, or carry out and wake defined other action of instruction up; The present invention will be only need to just can identify by the transceiver hardware of label self, is different from a kind of specific, radio-frequency signal of other radiofrequency signal, and the broadcasting that is defined as a special use wakes instruction up; This instruction definition label after receiving this instruction, need or set carrying out; And the operation program that this or a group need label to carry out is to be stored in advance in the label; The all labels that can identify this specific, radio-frequency signal all will be carried out the defined action of this instruction bar none after receiving this signal; Here the definition of " identification " refers to use identical working channel after the sleep of this signal and label is revived when monitoring signal, has perhaps used identical channel and identical modulation system, perhaps channel, and modulation system and coded system are all identical.Specific, radio-frequency signal described here can be to have any radiofrequency signal of some strength waking channel up; Also can be to have certain signal intensity and waking channel up and adopt any radiofrequency signal of same communication modulation system with label waking channel up; Can also have certain signal intensity waking channel up, and wake channel up and adopt any radiofrequency signal of same communication modulation system and coded system with label; This specific, radio-frequency signal can be any a part of feature that all has of data-signal bag in general sense that a label can be identified, for example strength characteristic and modulation system feature, these features do not need to adopt signal just can identify synchronously, and coding characteristic then needs signal just can identify synchronously.
When this specific, radio-frequency signal was any a part of characteristic signal that all has of a data-signal bag in general sense, telegon can by uninterruptedly to the mode of label emission partial data packets of information, transmit more new information to label.And this moment, we can be with this specific, radio-frequency signal instruction definition for requiring label after receiving and identifying out this signal specific, continue immediately to receive signal at the telegon channel, until label is by after continuing to receive the signal acquisition more information, can identify more exactly the relation of this signal and label itself, stop immediately receiving and enter the periodic sleep flashy state of rear monitoring wake-up signal of reviving for irrelevant signal, for coherent signal, then continue to receive until can make differentiation, and according to till differentiating the result and taking corresponding actions.When label employing periodic sleep, when reviving rear monitoring signal, we are a very limited time monitoring signal of needsization at every turn, can receive long a period of time of whole signal bag and all will monitor after not needing to revive at every turn like this.When adopting this mode, the useful signal of labeling requirement reception only has when may be arranged, after namely detecting this very short specific, radio-frequency signal with valid data signal bag feature, label just prolongs original listening period, continues to obtain the action that determines again next step after the more information by prolonging to receive.Referring to Figure of description 3
The action that this is carried out in the defined labeling requirement of specific, radio-frequency signal that wakes up on the channel, can not wake the mutual interference of channel emission wake-up signal phase up with telegon, it can be that label is in the action that wakes channel continuation reception signal up, also can be the action that communicates with read write line on the read write line channel, can also be the interaction action of the equipment that is connected with it of label.For the purpose of power saving, label is monitored the time of wake-up signal after sleep is revived here, is to guarantee that the each monitoring of label can both be known to identify the required shortest time of this specific, radio-frequency signal, is generally about 100 microseconds.
Because the moment of the monitoring signal of label after sleep is revived is random, thereby can not pre-determine the time that label begins to monitor, just in time be positioned at certain ad-hoc location of wake-up signal, therefore, can be for the complete radiofrequency signal of tag recognition in order to allow label in short as far as possible listening period, receive one, wake-up signal should be a kind of also fixing short period repeating signal of destination node not of fixed starting-point that both do not had.For example identical continuous several of shape or some prescription ripple signals, the cycle of the change of shape of each or every prescription ripple is very short.Thereby, no matter whenever label revives in sleep begins to monitor, label can receive this short period repeating signal immediately, and utilizes one or more received this short period repeating signals, just can immediately the signal that receives be identified and judge.Referring to Figure of description 4
Situation for the ISO-18000-7 standard, this command signal requires label after receiving this instruction, do not need to do any random delay, jump to immediately read write line working channel fn upper (channel that wakes up that is different from telegon work), the essential information that comprises self ID to the read write line emission, (in the ISO-18000-7 standard, the order of being launched to label with broadcast mode at information acquisition stage read write line), and in emission wait for afterwards the one given period of acknowledgement information that receives from read write line.Label will be according to the requirement in the acknowledgement information, decide is to stop to continue the emission identity information, getting back to periodic sleep revives afterwards at the state that wakes channel monitoring command signal up, still carry out and read UDB information etc. in the acknowledgement information and carry out the arrangement of more two-way communication with read write line, comprise cipher authentication, the read-write of more data, and mutual etc. with sensor.Referring to Figure of description 5
Here need to prove, after read write line tells that by the mode of emission receipt label has successfully received the basic identity information that label sends, if also need the information interchange of longer time between read write line and the part label, such as the read-write of authentication and large quantity etc., and the quantity of this part label is when also more, in order to reduce signal collision, system can be divided into the Card read/write to label two stages and carry out.It is basic identity information acquisition stage of label and Geng Duo two-way communication stage.The former only is responsible for gathering the essential information of the label that comprises ID, and it is generally all less that label is launched the required time of such information, enough for major applications, for example read only tag.The latter then often needs repeatedly repeatedly to read and write between label and the read write line, and takies more channel time.Thereby, finish after all label essential information collections in system, can the label that this part is needed more information exchange, be arranged in the essential information acquisition phase and finish, after entering the more information interchange stage, be distributed in the different time periods according to the principle that arrives first first and carry out.If certain label is because a variety of causes can not be finished needed two-way communication within the prearranged time period, read write line then can be in chronological order, and it is arranged in the time period back that has arranged.Referring to figure Figure of description 5
The phase one essential information gathers the required time, can determine by rule of thumb according to actual conditions, and the general time that only needs several seconds, the in case of necessity information acquisition of phase one also can be adopted the mode of waking twice collection for twice up.If adopt the mode of waking twice collection for twice up, label through the wake up process first time, before after receiving receipt, getting back to the state of monitoring after periodic sleep is revived on waking channel up, the a bit of time of state that also should enter complete dormancy and not monitor any signal is in order to avoid again waken up when launching wake-up signal for the second time.
If can not receive the acknowledgement information of read write line at the given time interior label of this section, label will (concrete time-delay method can be with reference to our company's patent " based on the collision-proof method of interactive electronic label technique " in predefined time-delay mode, number of patent application: 201010194562.6) again launch self identity information, until receive acknowledgement information from read write line, or repeat its transmission number of times/time surpass predefined value, waking channel up and monitoring the state of command information and get back to after periodic sleep is revived.Referring to Figure of description 6.Here need to prove, label does not need to carry out any random delay and just launches immediately, because itself be in a kind of state of the random emission of reviving at random when receiving special use at the beginning and wake command signal up.In the time of only can not receiving the receipt signal from read write line because bump at label, just adopt the mode of random delay to launch.And when adopting the random delay emission, do not waited for the restriction that read write line new round time slot arranges.In addition, the method that the mode of random delay can be not regenerate a random number by label yet realizes, and can utilize the uniqueness of label self ID number, and this specific character that the appearance itself with different I D label just has randomness realizes.Referring to Figure of description 3 and " based on the collision-proof method of interactive electronic label technique " anticollision patent specification.
System architecture
The all hardware that the employed hardware of system of the present invention relates to, also comprise a telegon identical with the read write line structure in existing ISO-18000-7 standard.Telegon is operated in respectively on the different channels from read write line in the system, and label is by time-division and the quick mode of redirect channel, can be operated in respectively on two different channels that telegon and read write line work.Referring to Figure of description 1.In same zone, can there be a plurality of telegons and read write line to exist, at this moment, different telegons can be operated on the different channels with read write line.Need to prove:
1, here telegon is only when the needs label is worked, waking up on the working channel, by within one short period, (length during this period of time generally should be greater than the label wake-up period of sleeping, with the label that guarantees that all need to wake up, can both receive this wake-up signal and be waken up) in the mode of broadcasting, continuously back-to-back seamlessly to the same instructions signal of label emission.Telegon does not only receive the signal from label waking single transmitting on the channel up; Read write line then can carry out two-way communication with label on the read write line working channel.
2, the performed task of telegon is more single in the ISO-18000-7 standard, only in the single command signal of the when and where emission certain hour of needs.Thereby can not be connected with computing machine and work alone.
3, store in advance in the label corresponding to the mode of operation program of waking instruction up.
4, label, telegon and read write line all are to be made by highly integrated micropower single-chip transceiver and single-chip microcomputer, and single-chip transceiver can be operated on a plurality of different channels, and can realize quick redirect between different channel.Each single-chip transceiver has a unique producer's numbering in the whole world (burning is in chip), in order to reduce power consumption, strengthen the ability of system rejection to disturbance and the reliability of system works, stability and security, the employed single-chip micropower of suggesting system for wearing transceiver adopts the frequently communication technology of straight order.For easy to use, suggesting system for wearing uses the international free frequency range of ISM.
5, the working channel of telegon and read write line should separate to reduce possible signal interference as far as possible.
6, under special circumstances, read write line also can be born telegon and two work of read write line by the mode of time-division.
System Working Principle
Label adopts and usually is in periodic sleep, and the flashy working method of rear monitoring signal of reviving reaches the purpose of power saving.Only have the RC internal clocking in work during the label sleep, the power consumption of whole label is very low, generally only has about 1uA.At first will open crystal oscillator and frequently comprehensive after label is revived, crystal oscillator and frequency are combined the stabilization time that needs about 1ms, and stable rear label can enter listening state, waits for the command signal of sending of telegon.The general power consumption of label when accepting state is about 20mA.Although label real work chance is very limited, one when the needs label is worked, and needs again label to react within the short as far as possible time, thereby the sleep wake-up period of label again can not be oversize, generally about 1 second.The usual stand-by power consumption of label just is divided into 2 parts like this, and the one, the power consumption of dormancy RC clock is exactly the snoop procedure power consumption of per second one-shot in addition.If each listening period is 10ms, then label is because per second is monitored once, and the average power consumption of generation is about 0.01x 20mA=200uA.
If practical application need to be read and write ten times label every day, the reading and writing data amount of each 5k, if reading and writing data speed is 100k/s, then the working time is no more than 1 second altogether.Thereby, label really be the electric current average out to of consumption in operation: 20mA/ (60x 60x24)=0.2uA. is obvious, the real power consumption of label is the power consumption of monitoring moment after periodic sleep is revived.Because monitoring, per second then needs to monitor 86400 times an every day.Thereby how to reduce the each listening period of sleeping after reviving of label, just become and prolong the tag battery key in serviceable life.
If the listening period after we revive label shortens ten times at every turn, if do not consider the impact of other factors, then the life-span of battery just can prolong ten times nearly.The method that replaces the director data signal bag of standard by wake command signal up with foregoing special use has certainly also just greatly shortened label and has revived time of rear monitoring signal at every turn, reduces the power consumption of label.If we monitor the time of instruction is 100uS=0.0001s, then the theoretic average power consumption of label is 20mA x 0.0001x 1000=2uA.Consider the impact of all other factorses, the average power consumption of whole label will can not surpass 10uA.This just means that the battery life of a 1000mAh can reach more than 10 years (1000mAh/10uA＞10 year).
The present invention is by adopting telegon waking channel emission broadcasting instructions signal up, and label is after waking channel up and listening to command signal, jump to immediately the straightforward procedure that transmits on the working channel, guaranteed on the one hand the shortest working time of label, on the other hand, having guaranteed that label is original revives and random emission process at random, thereby has greatly shortened the whole process that the magnanimity label is read and write.Referring to Figure of description 2.
After the moment emission information after the present invention utilizes label to be waken up, wait for immediately the receipt signal from read write line, the chance of read write line emission receipt signal after utilization and label establish a communications link sends point-to-point command information to label again, and finishes two-way communication between the two.So that in whole read-write process to label, label is in high efficiency duty all the time.Referring to Figure of description 5.
In addition, by using different coded order signals, different label work systems can be distinguished from the beginning and be come, this has just increased confidentiality and the applicability of system greatly.
The tested results shows, 200 labels that to have random ID numbering data packet length be 20 bytes are carried out fully successful identity information acquisition (comprising the acknowledgement information with the successful launch of ID), and required time was no more than for 4 seconds.
The technical solution used in the present invention
One, determine that concrete special use wakes command signal up
Two, determine that special use wakes the defined action of command signal or action group up
Three, determine label after transmitting, when within the given stand-by period, failing to receive the receipt signal, the delay emission method of taking, and the number of times of repeat its transmission and time restriction.
Four, according to the needs of practical application, the sleep of the determining label listening period T that revives
Five, determined content in above-mentioned the first, the second, third and fourth and corresponding program are write among the label.
Six, wake special use up command signal and insert in the telegon launching procedure in the mode of continuously uninterrupted emission, and determine each time that transmits continuously according to label sleep wake-up period T.
Seven, start telegon at the when and where that needs label work, it is being waken up on the channel, within greater than the time of T, wake command signal up to label emission special use uninterruptedly, wake and enter into label up on working channel, carry out information interchange with read write line state from the listening state of low-power consumption.
Eight, system utilizes label and read write line to set up the chance of writing to each other, and by the mode of acknowledgement information, assigns the required work order of various application to label.
Nine, label is periodically monitored the low power consumpting state that telegon wakes instruction up with getting back to waking up on the channel after the work of finishing requirement.
The invention has the beneficial effects as follows, it not only greatly improves the ISO-18000-7 standard to read or write speed and the efficient of label, but also greatly prolongs the serviceable life of tag battery, thereby has expanded the range of application of standard.The method applied in the present invention has the meaning of generally applying.Particularly importantly, utilize method provided by the present invention, can in officely what is the need between the Wireless Telecom Equipment that will economize on electricity, keep a kind of low cost, the state that low-power consumption and the moment wanted of what is the need in office can Rapid Establishment two-way communication contacts.Thereby label definition of the present invention has also just comprised having the Wireless Telecom Equipment that the low-power consumption economize on electricity requires on other frequency range.
Illustrate
Figure one system's basic structure schematic diagram
Figure two system basic functional principle figure
Time-delay continued to receive after figure three labels listened to the radiofrequency signal of correlated characteristic
The special-purpose wake-up signal that four short periods of figure repeat
Label read-write mode after figure five improves for ISO 18000-7 standard
Figure six labels utilize the read write line acknowledgement information to determine next step action
Embodiment
Example below in conjunction with the tourist attraction personal management is used further specifies the technical solution adopted in the present invention:
Several read write lines that are connected with the control center computing machine by wired or wireless network and supporting telegon are installed in our position different at the scenic spot at first.The signal cover of each read write line and telegon is difference according to actual needs and to some extent, and the number of read write line and telegon can cover whole scenic spot with its signal and be as the criterion.
Each visitor is with a wireless identification tag, and is corresponding with this visitor's name and affiliated tourist party; And each guide also has oneself wireless identity label with different scenic spot managerial personnel.The character of the label that different identity personnel carry is different.For example the label that carries of visitor and scenic spot managerial personnel or guide is except ID number to some extent the difference, the latter's label may also need to link with the required equipment of its work, calling device for example, talk back equipment or other handheld device etc., they often need to carry out more information interchange with administrative center when needed.
We understand scenic spot visitor's distribution situation, the position at mobility status and managerial personnel and guide place by the label ID information in each its signal cover of read write line timing acquiring.And when needed by with the two-way communication of guide and managerial personnel's label, realize the intelligent management at scenic spot.
Telegon is waking the command signal of waking up of launching continuously for 2 seconds on the channel to label up every 5 minutes (can adjust as required), label was revived and is monitored wake-up signal 100 microseconds waking channel up every 2 seconds, wherein visitor's label jumps to the id information of read write line working channel emission oneself immediately after receiving wake-up signal, and the acknowledgement information from read write line of monitoring 3ms, and after receiving receipt, enter immediately the sleep flashy low power consumpting state of monitoring signal of reviving, if within the stand-by period of 3ms, fail to receive acknowledgement information, label with random delay after again the emission, several times are until receive the read write line acknowledgement information so repeatedly, and perhaps the repeat its transmission number of times surpasses and stops after 5 times launching and get back to the revive state of rear monitoring of periodic sleep.For managerial personnel's label, identical with visitor's label, to launch own identification signal equally receiving wake-up signal, but after supervisory computer receives managerial personnel or guide's identity information by read write line, will be according to the needs of management, to wherein part managerial personnel or guide, by the mode of point-to-point receipt signal, notify it in time inner segment subsequently, to carry out two-way exchange respectively at read write line.Comprise that requiring them to beam back when needing accurately locates required positioning signal bag to them.
To those visitors who falls behind, can determine by pinpoint mode too the particular location at its place in addition.
Like this, we just can in a kind of cost-effective mode, improve the management level of tourist attraction greatly.
Claims (12)
1. system that improves ISO-18000-7 international standard label read-write mode relates in the ISO-18000-7 international standard and comprises label, and read write line, computing machine also comprise telegon in addition at interior all hardware; Label, read write line and telegon all are to be made by same single-chip transceiver, can carry out radio communication each other; The label here is in periodic sleep usually, monitors and to wake the flashy low power consumpting state of command signal up waking channel up after reviving; The telegon here is operated in and wakes up on the channel; Read write line then is operated on the read-write channel, and label is the mode by the channel redirect then, be operated in respectively telegon work wake up on the channel and the read-write channel of read write line work on; With a kind of specific, radio-frequency signal that the transceiver hardware of label self just can be identified, the broadcasting that is defined as a special use wakes instruction up; Here the definition of " identification " refers to be operated on the identical channel when monitoring signal after the sleep of this signal and label is revived, and has perhaps used identical channel and identical modulation system, perhaps channel, and modulation system and coded system are all identical; This instruction definition label after receiving this instruction, need or set carrying out; And the operation program that this or a group need label to carry out is to be stored in advance in the label, it can be that label is in the action that wakes channel continuation reception signal up, also can be to jump to the action that communicates with read write line on the read write line channel, it can also be the interaction action of the equipment that is connected with it of label, but comprise at least that wherein label is after receiving this command signal, jump to immediately and launch the identity information that comprises self ID on the read write line working channel, and launching the acknowledgement information of rear wait reception from read write line, and set up the action that two-way communication contacts with read write line whereby; When the needs label is worked, telegon will be in the length of waking up on the channel according to the sleep wake-up period of label, within one short period with broadcast mode, continuously continually wake command signal up to the label emission, label receives to wake up will carry out immediately after the command signal and wakes the defined action of instruction up; Here the revive time length of rear monitoring wake-up signal of the each sleep of label is to guarantee that the each monitoring of label can both identify the required shortest time of this specific, radio-frequency signal.
2. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 1, it is characterized in that: specific, radio-frequency signal described here, refer to that has a short period repeated characteristic, both do not defined reference position and do not had yet one or more this short period repeating signals in the wake-up signal of definition of terminal position, no matter whenever label revives in sleep begins to monitor, label can receive this short period repeating signal immediately, and can utilize these received one or more short period repeating signals that it is identified and judges.
3. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 1 is characterized in that: specific, radio-frequency signal described here can be to have any radiofrequency signal of some strength waking channel up; Also can be to have certain signal intensity and waking channel up and adopt any radiofrequency signal of same communication modulation system with label waking channel up; Can also have certain signal intensity waking channel up, and wake channel up and adopt any radiofrequency signal of same communication modulation system and coded system with label.
4. according to claim 1,2 or 3 described a kind of systems that improve ISO-18000-7 international standard label read-write mode, it is characterized in that: the defined action of specific, radio-frequency signal here, that label is after receiving this signal specific, jump to immediately on the working channel of read write line, launch the identity information of self to read write line, and wait for afterwards the one given period of acknowledgement information that receives from read write line in emission, and utilize this chance and read write line to set up and write to each other; If can not receive the acknowledgement information of read write line at the given time interior label of this section, label will be launched the identity information of self again in predefined time-delay mode, until receive acknowledgement information from read write line, or repeat its transmission number of times/time get back to periodic sleep after surpassing predefined value, monitor the flashy state of command information waking channel up after reviving.
5. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 4, it is characterized in that: the defined action of specific, radio-frequency signal here, that label is after receiving this signal specific, jump to immediately on the working channel of read write line, identity information to read write line emission self, and wait for afterwards the one given period of acknowledgement information that receives from read write line in emission, if waiting time interior label can receive the receipt that read write line successfully receives the identity information of label emission, label will stop to continue the emission identity information immediately, even monitor the flashy state of command signal waking channel up after returning periodic sleep behind the time-delay certain hour of existing side by side and reviving.
6. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 4, it is characterized in that: the defined action of specific, radio-frequency signal here, that label is after receiving this signal specific, jump to immediately on the working channel of read write line, identity information to read write line emission self, and wait for afterwards the one given period of acknowledgement information that receives from read write line in emission, if waiting time interior label can receive the receipt that read write line successfully receives the identity information of label emission, label will be according to the requirement in the acknowledgement information, carry out immediately in the acknowledgement information and carry out more two-way communication with read write line, comprise cipher authentication, the read-write of more data, and with the interactive action command that waits of sensor, and get back to after the execution instruction periodic sleep revive after at the state that wakes channel monitoring command signal up.
7. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 4, it is characterized in that: the defined action of specific, radio-frequency signal here, that label is after receiving this signal specific, jump to immediately on the working channel of read write line, identity information to read write line emission self, and wait for afterwards the one given period of acknowledgement information that receives from read write line in emission, if waiting time interior label can receive the receipt that read write line successfully receives the identity information of label emission, temporal information and arrangement of time that label will provide according to acknowledgement information, within the new time period, carry out in the acknowledgement information and carry out more two-way communication with read write line, comprise cipher authentication, the read-write of more data, and with the interactive action command that waits of sensor, and get back to after the execution instruction periodic sleep revive after at the state that wakes channel monitoring command signal up; And label and read write line carry out the precedence of more two-way communications within the new time period, is to arrange at times according to the principle that arrives first first.
8. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 3, it is characterized in that: when this specific, radio-frequency signal be the label data-signal bag that can receive arbitrarily a part all have feature the time, telegon can by uninterruptedly to the mode of label emission partial data packets of information, transmit more new information to label; In advance defined action of this specific, radio-frequency signal instruction this moment then is that the requirement label is after receiving and identifying out this specific, radio-frequency signal feature, continue immediately to receive signal at the telegon channel, until label is by after continuing to receive the signal acquisition more information, can identify more exactly the relation of this signal and label itself, stop immediately receiving and enter the periodic sleep flashy state of rear monitoring wake-up signal of reviving for irrelevant signal, for coherent signal, then continue to receive until can make differentiation, and according to till differentiating the result and taking corresponding actions.
9. a kind of system that improves ISO-18000-7 international standard label read-write mode according to claim 1, it is characterized in that: in order to reduce as far as possible the label working time to prolong the tag battery life-span, except the sleep state of low-power consumption, label only is in a kind of of short duration execution and determines the state of task, and can not be in the state that rear irregular wait receives the read write line signal that is waken up.
10. method of improving ISO-18000-7 international standard label read-write mode is characterized in that: provide a kind of between two or more Wireless Telecom Equipments that need power saving, can set up rapidly the method for writing to each other when needs are communicated by letter; Monitor the flashy low power consumpting state of wake-up signal waking channel up after this method is set to a kind of periodic sleep and revives by callee's label, calling party's read write line then can be in off-mode fully; And when both sides need to establish a communications link, the calling party at first made the state that oneself enters at working channel callee's signal first-class to be received, and launched wake-up signal to the callee incessantly one short period by telegon continuously waking up on the channel simultaneously; After the callee receives wake-up signal, will jump on calling party's the working channel, monitor simultaneously the mode of receipt signal by launch self identification signal to the calling party, set up with the calling party and to write to each other, and after work is finished, get back to and monitor the flashy low power consumpting state of wake-up signal after periodic sleep is revived; A kind of specific, radio-frequency signal with only need to just identifying by callee's self transceiver hardware is defined as the wake-up signal instruction of a special use; Here the definition of " identification " refers to use identical working channel after this signal and callee sleep is revived when monitoring signal, has perhaps used identical channel and identical modulation system, perhaps channel, and modulation system and coded system are all identical; This instruction definition the callee after receiving this signal instruction, need or set carrying out, it can be that the callee is in the action that wakes channel continuation reception signal up, also can be the action that communicates with the calling party on calling party's working channel, can also be the interaction action of the equipment that is connected with it of callee; And this or one group of operation program that needs the callee to carry out are to be stored in advance in the called party instrument; Here the revive time length of rear monitoring wake-up signal of callee sleep is to guarantee that the each monitoring of callee can both identify the required shortest time of this specific, radio-frequency signal; The calling party here and callee can exchange, and two work that telegon and calling party bear respectively can be born by same read write line by the mode of time-division.
11. a kind of method of improving ISO-18000-7 international standard label read-write mode according to claim 10, it is characterized in that: specific, radio-frequency signal described here, refer to that has a short period repeated characteristic, both do not defined reference position and do not had yet one or more this short Zhou Dynasty of the repeating signals in the wake-up signal of definition of terminal position, no matter whenever the callee revives in sleep begins to monitor, the callee can receive this short period repeating signal immediately, and can utilize these received one or more short period repeating signals that it is identified and judges.
12. a kind of method of improving IS0-18000-7 international standard label read-write mode according to claim 10 is characterized in that: specific, radio-frequency signal described here can be to have any radiofrequency signal of some strength waking channel up; Also can be to have certain signal intensity and waking channel up and adopt any radiofrequency signal of same communication modulation system with the callee waking channel up; Can also have certain signal intensity waking channel up, and wake channel up and adopt any radiofrequency signal of same communication modulation system and coded system with the callee.
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| CN103761547B (en) * | 2013-12-31 | 2016-08-24 | 电子科技大学 | A kind of active RFID communication means being applied in car networking |
| CN103984969B (en) * | 2014-05-26 | 2017-08-01 | 公安部第三研究所 | Realize the system and method for active RFID unit and card reading unit two-way communication |
| CN105992315B (en) * | 2015-01-30 | 2020-04-10 | 成都西谷曙光数字技术有限公司 | Wireless low-power consumption sensing network based on low duty cycle working mode |
| CN106488460B (en) * | 2015-08-28 | 2020-06-23 | 苏州恩泽迅扬节能科技有限公司 | Wireless communication method, and corresponding master device, slave device and wireless communication system |
| CN108460947A (en) * | 2017-02-17 | 2018-08-28 | 成都西谷曙光数字技术有限公司 | A kind of assets automatic monitoring system and method based on technology of Internet of things |
| CN109001668B (en) * | 2018-04-10 | 2022-11-18 | 四川中电昆辰科技有限公司 | Positioning tag response method and system in positioning period set |
| CN108566687A (en) * | 2018-04-25 | 2018-09-21 | 成都西谷曙光数字技术有限公司 | LDSW ultra-low power consumption wireless self-organizing network system and communication means |
| CN109035514A (en) * | 2018-07-20 | 2018-12-18 | 成都西谷曙光数字技术有限公司 | Electronic boarding check management method and system |
| 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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