CN1588466A - Multiple article anti-lose system based on passive radio frequency label - Google Patents
Multiple article anti-lose system based on passive radio frequency label Download PDFInfo
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Abstract
The invention provides a multi-object loss resisting system based on passive radio frequency label, which includes: loss resisting sub machine and loss resisting host machine, the loss resisting sub machine is passive radio frequency label, the loss resisting host machine includes: antenna, radio frequency model, reading model, primary control model, control reading model, and input device and output device; the primary control model includes instant check model and monitor alarming model; the instant check model makes the reading model to scan the radio frequency label according to the demands of user, when the reading model can no read passive FRID label, it sends out instructions; the monitor alarming model scans the passive radio frequency label repeatedly according to the period.
Description
Technical field
The present invention relates to a kind of article anti-lose system, relate in particular to a kind of multiple article anti-lose system based on passive RF label (FRID).
Background technology
Present existing anti-loss device generally is made up of main frame and handset (generally being), handset is sent stable radiowave during work, main frame is not reported to the police after receiving the radio signal of handset, when the distance between main frame and the handset surpass predetermined apart from the time main frame do not receive the radio signal of handset, send chimes of doom immediately, remind user's attention.As utility model patent " loss prevention device " (application number: 99236729.8), disclose a kind of " transmitter and the reception alarm that receives radiowave that comprise emitting radio wave.The transmitter housing is flat box-like, is pasted with a slice velcro on its flat surface, and another sheet velcro that is interlocked with it sticks on the anti-lost article of need.During use, transmitter is attached to by velcro and needs on the anti-lost article, when transmitter surpasses setting range with the distance that receives alarm, receives alarm and just sends chimes of doom." but because, the handset of this type of anti-lose system is an active equipment, thereby volume can not do very for a short time, hang on the key-ring, be contained in the handbag passable, but just inconvenient to smallclothes such as passports.Because volume and complexity, such anti-loss device is also relatively more difficult to the support of many objects.
On the other hand, RFID (Radio Frequency Identification) radio-frequency (RF) identification is a kind of contactless automatic identification technology, it is by the automatic recognition objective object of radiofrequency signal and obtain related data, and identification work need not manual intervention, can work in various rugged surroundings.The RFID technology can be discerned moving object and can discern a plurality of labels simultaneously, and is swift and convenient to operate.The most basic rfid system is made up of three parts:
Label (Tag): be made up of coupling element and chip, each label has unique electronic code, attached to identifying destination object on the object;
Reader (Reader): read the equipment of (can also write sometimes) label information, can be designed to hand-held or fixed;
Antenna (Antenna): between label and reader, transmit radiofrequency signal.
Along with development of technology, RFID will be to lower label cost, higher reading/writing distance, more large storage capacity, more development such as weakness reason time.
Summary of the invention
Technical matters to be solved by this invention provides a kind of multiple article anti-lose system based on passive RF label (FRID), and on the one hand quick check immediately prevents that object from forgeing, losing, and can monitor on the other hand to alarm to prevent that object is stolen; As long as use this system any object that needs to pay close attention to is adhered to a passive RF label, not only can be used for the anti-of small article and lose, also can pay close attention to a plurality of objects easily.
In order to solve the problems of the technologies described above, the multiple article anti-lose system based on passive RF label (RFID) of the present invention comprises: anti-loss device handset and anti-loss device main frame, and designed instant inspection and two kinds of mode of operations of monitoring alarm.
Described anti-loss device handset is a passive RF label: it is read, detects for the anti-loss device main frame attached to being paid close attention to object;
Described anti-loss device main frame comprises:
Antenna: it is used for transmitting radiofrequency signal between label and anti-loss device main frame;
Radio-frequency module: it is responsible for transmitting and receiving of data;
Read module: it accepts the instruction of main control module, carries out the reading operation to passive RF label;
Main control module: its control read module, finish the interface with input and output, it is provided with instant inspection module and monitoring alarm module.
Input media and output unit;
Described instant checking mode is:
Under instant checking mode, the user can indicate the anti-loss device main frame to read the good radio-frequency (RF) tag of configured in advance at any time, when the anti-loss device main frame is read less than certain label, promptly provides prompting, reports that corresponding object is not in the concern scope; The anti-loss device main frame is in holding state at ordinary times, does not make any read-write motion, not electric consumption aspect read-write.Main frame is checked only once reading of do of instruction to each.
Described monitoring alert mode is:
Under the monitoring alert mode, need to set a reading cycle, system provides a default cycles (as 2 seconds).After user's indication mechanism begins to monitor alert mode work, read module is according to the cycle that configures, the good radio-frequency (RF) tag of configured in advance is read in multiple scanning, in case when reading, promptly provide prompting, report that corresponding object is not in the concern scope less than certain label, and continue to press primitive period and read, if read the label that all configures, just cancellation alarm, heavy and realized long-time stable anti-ly losing monitoring to what pay close attention to thing.
The present invention can help to check easily has the object of denying to forget, lose, and provides alarm when object is stolen, the daily life that is convenient for people to.
Description of drawings
Fig. 1 is the structural representation of anti-lose system of the present invention.
Fig. 2 is the view of anti-lose system.
Fig. 3 is the workflow diagram of the state that is provided with of anti-lose system.
Fig. 4 is the workflow diagram of the monitoring alarm status of anti-lose system.
Fig. 5 is the workflow diagram of the instant inspection state of anti-lose system.
Fig. 6 is the structural representation with the integrated anti-lose system of mobile phone.
Fig. 7 is the structural representation with the integrated anti-lose system of digital music player (MP3).
Embodiment
Embodiment one, special-purpose anti-loss device
Be a reference design of the special anti-loss device of example introduction below with the 13.56M of TI company scheme.
" special use " of special-purpose anti-loss device refers to two aspects: on the one hand, its function is special-purpose, adopts the easy-to-use anti-loss device of RFID exactly; On the other hand, it does not have other device to utilize, and needs from the beginning design circuit, selector, and selecteed these devices are exactly the function of finishing anti-lose system, do not make other task, as the scheduling of MP3 program.
TI has the ripe scheme of low frequency 134K and two series of high frequency 13.56M aspect RFID, come out at the existing print of ultrahigh frequency 915M.Along with the development ultrahigh frequency of technology may be more suitable for this anti-loss device, be the example explanation still here with high frequency 13.56M.
As shown in Figure 1, this special use anti-loss device comprises: anti-loss device handset 1 and anti-loss device main frame 2.
Described anti-loss device handset 1 is passive RF (FRID) label: it is read for main frame attached to being paid close attention to object, detects; This anti-loss device handset 1 comprises radio-frequency (RF) tag 11,12 in this specific embodiment ... 1N.
Described anti-loss device main frame 2 comprises:
Antenna 21: it is used for transmitting radiofrequency signal between label and main frame;
Radio-frequency module 22: it is responsible for transmitting and receiving of data; It includes resonant circuit in this specific embodiment, also has an emissive power control handle;
Read module 23: it accepts the instruction of main control module, carries out the reading operation to passive RFID;
Main control module 24: control RFID read module, finish the interface with the anti-loss device input and output, it is provided with instant inspection module and monitoring alarm module, to drive, to carry out instant the inspection and the monitoring alert mode.
Keypad 25 and LCD display 26: be used for input and output;
Radio-frequency (RF) tag adopts the Tag-it HF-I of TI, and minimum dimension can arrive 38x22.5mm; The RFID label has globally unique identification code, and for easy to use, the native system character field that has been the RFID label design for each label provides one or several character attibute, is " qian-bao " as the attribute of radio-frequency (RF) tag 1.Each system all fixedly has been equipped with the radio-frequency (RF) tag of some, and these tag ID code have been written to host memory when dispatching from the factory, and the user can not change.In other words, anti-loss device can not read the radio-frequency (RF) tag that does not belong to it.
Host aspect, described main control module adopt TI to read chip S6700 RI-R6C-001A chip, according to the supporting with it antenna and the radio-frequency module (resonant circuit) of explanation design of this chip service manual.Described main control module can be selected the processor of single chip computer system that uses always, and as 51 series, it will move the software of anti-loss device, comprises driver and the anti-application software of losing of RI-R6C-001A, and realizes being provided with, checks and monitor immediately the alarm process.
As shown in Figure 2, described anti-loss device is the finite state machine of one 4 state: holding state, be provided with state, immediately check state and the monitoring alarm status.
Under the holding state: anti-loss device is in waits for user's input state, and the user can select to be provided with, start instant the inspection or startup monitoring alarm at this moment.
Be provided with under the state: the user can be provided with monitoring alarm and the instant operational data of checking, as selecting work tap, definition bookmark name, setting the scan period etc.
Under the monitoring alarm duty: anti-loss device can be read work tap by the beat that sets (cycle) scanning, if any undetected label with regard to alarm prompt.
The instant inspection under the duty: work tap is read in anti-loss device scanning, and the result is shown on LCD.This pattern is a single.
As shown in Figure 3, described setting up procedure is as follows: at first select the monitoring alarm to be provided with or check immediately to be provided with.Monitoring alarm setting up procedure step is: browse the intrinsic label of each system disposition, it is set at work tap or removes the work tap setting, set or revise this bookmark name; After whole labels are finished above-mentioned steps, set the scan period again, promptly finish.The instant setting up procedure step of checking is: browse the intrinsic label of each system disposition, it is set at work tap or removes the work tap setting, set or revise this bookmark name; After being finished above-mentioned steps, promptly finish by whole labels.
As shown in Figure 4, the described monitoring alarm status course of work is as follows: start at first that timer is read in scanning and incoming event is caught, the cycle of timer has established in setting up procedure and under preserving; Wait for the generation of timing and incoming event then.Processing to timed events comprises following process: each work tap is read in scanning, if read less than just noting this label; After scanning reads whole labels, check whether the label that does not read was arranged in this cycle.If the label of not reading is arranged, then alarm prompt then need not be alarmed; This scan period finishes, and continues to wait for next incident.Only to user's the commanded response that quits work, processing procedure is simple relatively in the incoming event: close scanning timer, the internal memory etc. that resets, finish monitoring alarm duty and be back to holding state.
As shown in Figure 5: the course of work of described instant inspection state is as follows: each work tap is read in scanning, if read less than just noting this label; After scanning reads whole labels, check whether the label that does not read is arranged, and make corresponding prompt, then finish this time instant inspection work and be back to holding state.Instant inspection work be as required, single.
Embodiment two: integrated with mobile phone
The function of mobile phone is more and more stronger now, and degree of intelligence is more and more higher, and its CPU has not generally adopted single chip computer architecture, and adopts ARM chip (built-in ARM nuclear).The keyboard of mobile phone and LCD also are fit to anti-loss device very much.So, when anti-loss device and mobile phone when integrated, as shown in Figure 6: main control module and input are utilized the appropriate section of mobile phone, and promptly described main control module running software is on mobile phone CPU, described input media is a cell phone keyboard, and described output unit is the display screen of mobile phone.Embodiment three, integrated with digital music player
With present popular digital music player (MP3) is example.
As shown in Figure 7: right part is present typical a kind of MP3 player structure among the figure, and it adopts the SAA7751 decoding chip of Philips.The performance of SAA7751 decoding chip tonequality is excellent, but it only is a decoding chip, by the control chip of an other microprocessor as player.When integrated, utilize same microprocessor to anti-loss device and digital music player (MP3), same input and output (LCD and keypad).System chart after integrated as shown in Figure 7, microprocessor is taken on the primary controller of digital music player and the main control module of anti-loss device simultaneously, it is the microprocessor that described main control module is implemented in digital music player, described input media is the button of digital music player, and described output unit is the display screen of digital music player.
Below in conjunction with several concrete life case descriptions applicable cases of the present invention:
1, instant checking mode loses the inspection example
Mr. Wang is the professional chief inspector of certain trading company, run through each big city of be everlasting European various countries and China, whilst on tour in the hotel, ground such as airport wants running check air ticket, passport etc., trouble does not say that also the moment is in biotonus.
Now good, Mr. Wang has had the hold concurrently mancarried electronic aid of anti-loss device of a MP3, both can listen to the music during the journey, can check to deny that crucial thing is lost again at any time.
Now, Mr. Wang goes to Europe to go on business again, is again specifically once busy travelling, go to European five big cities to meet with partner, prepares three parts of contracts of signature.
Mr. Wang determines that at first this stroke needs a few thing of running check: connection journey air ticket, passport, wallet, mobile phone, document envelope, palm PC and a spare communication are originally.
This anti-loss device of Mr. Wang has been equipped with 25 RFID labels, and these 25 labels can be worked simultaneously.Mr. Wang thinks that other object does not need to check at any time except these seven, then got seven, consider standby he be with three again.
Mr. Wang is opened the anti-loss device main frame, selects instant the inspection to be provided with.There have been all tag records of 25 the anti-loss device the inside, Mr. Wang finds corresponding seven, be made as work tap, name is set respectively is called " jipaio ", " huzhao ", " qianbao ", " shouji ", " gongwen ", " PDA " and " tongxinben ", and these seven labels are correspondingly adhered to (paste and pack into) to connection journey air ticket, passport, wallet, mobile phone, document envelope, palm PC and spare communication.
Mr. Wang has been put luggage in order, concentrates to be put between the study.He wants to test now, and he remembers that the detection of saying on this anti-loss device instructions is 3 meters apart from maximum, can regulate in this scope.He takes out main frame, stirs the knob adjustment and detects distance to 2 meters, goes between the kitchen (ready luggage distance is in six or seven meters appearance his study) then, starts immediately and checks that anti-loss device sends beep sound, and alarm shows that seven objects do not have entirely! Mr. Wang is gone back, and to the doorway, study, general 4 meters away from desk be, button is checked again, and still alarm seven sample things does not have more! He continues to walk close to luggage, to one meter appearance, checks, he, not alarm, seven sample things exist entirely! Xiao Zhang is relieved.
Entirely all set, go out.Mr. Wang is taken out anti-loss device, checks that by several keys down OK has been with, and what he was relieved has gone out.
On the road of going to the airport, he has connect several phones, also deposits the memorandum of knowing clearly in palm PC.Taxi is to the airport, and Mr. Wang is got off, and faces and cut-offs in front of the door, has remembered and has checked to have thing to drop on taxi.Take out anti-loss device, by checking under several, he, how to have rung! Prompting shows " PDA ", has deposited memorandum just now and one has put conveniently, and palm PC has gone under sliding into the seat! A carefulness that how Mr. Wang has rejoiced oneself.
Entered the airport, done ticket, safety check, air ticket, passport are taken out into several times, and Mr. Wang is checked again, OK.This is down good, can board a plane finally, sleeps!
The current European trip Ninth Heaven of Mr. Wang has passed through five cities, and four trains twice that fly have successively been lived five tame hotels, and anti-loss device has alleviated his many worries.Journey can also be heard the music of liking, and really kills two birds with one stone.
2, instant checking mode prevents to forget example
Xiao Zhang is a working people, always likes morning taking a snap more, often gos out hurriedly, just unavoidably forgets a thing sometimes, feels very unhappy.
Remind through friend, Xiao Zhang has bought a special anti-loss device with 10 RFID labels, and it is many to save trouble under this.
Xiao Zhang has at first put the thing that working need be with in order, has five: office's key, work card, wallet, mobile phone and body-building card (Xiao Zhang likes sport and body-building, as long as run toward club on every possible occasion).Then, Xiao Zhang has taken 5 RFID labels, adheres to (paste and pack into) to these five article; He selects to check immediately setting again on the anti-loss device main frame, these corresponding five RFID bookmark names are made as " yao-shi ", " gong-ka ", " qian-bao ", " shou-ji " and " jian-shen ", and are made as work tap.
Now, will go to work morning, take out anti-loss device before Xiao Zhang opens the door, and by several keys down, start immediately and check that anti-loss device sends beep sound, prompting at a glance, " yao-shi ", right, is key also on the desk of study?
Come off duty, Xiao Zhang will go body-building.After tidying up desk, he takes out anti-loss device again, by several keys down, prompting OK.The next relievedly body-building of Xiao Zhang has been gone.
3, the monitoring alert mode public place usage example that cautions against stealing
Xiao Li takes pubic transport on and off duty, though be careful one, can have time trip still stolen mobile phone.Do not say 1,000 mobile phone itself, a good hundreds of telephone number has also been deposited in the inside, makes Xiao Li feel bad several days.
Whether have a day Xiao Li to remember, find on the net and prevent losing alarm, one looks into, and the electronic anti-theft apparatus of novel employing radio-frequency (RF) tag is also really arranged.
Xiao Li thinks that electronic anti-theft apparatus is useful, is equipped with a suitable anti-loss device and will makes things convenient for his daily life.Xiao Li is a careful people, and he has done careful investigation to this product at first on the net, arrives the shop actual observation again, has finally bought a one and has been with 20, the special-purpose radio-frequency electronic anti-theft apparatus of band buzzing, vibrating alert.
Saturday, Xiao Li will go to watch the football game to have matched.Tame rough far away from the court, needing the public transport bus to change subway changes bus again.Xiao Li's decision allows anti-loss device look after him with oneself with wallet, mobile phone, the digital camera be with, though seldom he knows that thief's trick is very fast.
Xiao Li has got three RFID, two adhesive types, adhere to respectively on mobile phone and the digital camera, a generic card type, install in the wallet.On anti-loss device, select the prompt alarm setting, these three labels are made as work tap, and name is set respectively is called " shouji ", " xiangji " and " qianbao "; Then, being set the monitoring scan period again is 2 seconds.Xiao Li knows that from instructions the cycle can set in the scope at 1 second to 30 minutes, and oversize alarm is just untimely, and it is many to have lacked very much power consumption, considers how dangerous the people is in the public transport, and Xiao Li is set to 2 seconds.Xiao Li adjusts to 1.5 meters to monitoring distance again.Little 3 meters of the maximum functional of this anti-loss device distance, 1.5 meters one side are fit to the public transport environment of individual little spatial dimensions, on the other hand also can power savings, because emissive power can be smaller.
At last, Xiao Li also opens the vibrating alert pattern, and anti-loss device is fixed on the waistband, starts to have gone out relievedly after monitoring is alarmed.
Xiao Li has taken advantage of motorbus, changes subway, rides in a bus again, and the next stop will have been arrived, and at this moment be crowed with people in the car, and Xiao Li stands also uncomfortablely.Heard football field pass fan cry sound, Xiao Li's mood gets warm immediately, wishes also to cry out.Suddenly, the anti-loss device on the waistband has vibrated.Xiao Li one is frightened, has had little time to see the anti-loss device alarm prompt, and Xiao Li one touches, and mobile phone exists, and digital camera also exists, and wallet has not had! Will arrive at a station, Xiao Li shows resourcefulness in an emergency, and has cried out one " driver master worker, my wallet has not had, and does not open the door earlier " at once.The driver says to find and sees that Xiao Li has looked at one's side, does not have.The driver asks " when not having ", Xiao Li say " just also, sure,, do not stop to miss the stop just just now ", Xiao Li knows that anti-loss device is timely certainly, just two seconds scan period.The driver adds, and " take your time, certainly all right onboard, carefully find again " periphery also someone says that carefully find and see, Xiao Li bows again and looks at, sound of sighing, just on the pin limit.Xiao Li says, " found, found, driver master worker, thank you ".The driver says that " have no relations, everybody is a little careful, watches a ball game and also wants mood OK! ".Xiao Li think if it were not for I anti-loss device alarm in time, this thief is hand again, thinks that the people is too many unfortunately, watches a ball game again, otherwise can capture out just delighted to the thief again.
Claims (9)
1, a kind of multiple article anti-lose system based on passive RF label is characterized in that, comprising: anti-loss device handset (1) and anti-loss device main frame (2):
Described anti-loss device handset (1) is a passive RF label: it is read for main frame attached to being paid close attention to object, detects;
Described anti-loss device main frame (2) comprising:
Antenna (21): it is used for transmitting radiofrequency signal between label and main frame;
Radio-frequency module (22): it is responsible for transmitting and receiving of data;
Read module (23): it accepts the instruction of main control module, carries out the reading operation to passive RFID tags;
Main control module (24): control read module (23), finish interface with input and output; It comprises instant inspection module and monitoring alarm module;
Input media and output unit;
Described instant inspection module, it can indicate the requirement of read module by the user at any time, and the scanning passive RF label when read module is read less than certain passive FRID label, promptly provides prompting;
Described monitoring alarm module, its indication read module is according to the cycle that configures, and the good passive RF label of configured in advance is read in multiple scanning, when read module is read less than certain passive RF label, promptly provides prompting.
2, the multiple article anti-lose system based on passive RF label according to claim 1 is characterized in that, described input media is keypad (25).
3, the multiple article anti-lose system based on passive RF label according to claim 1 is characterized in that, described output unit is LCD display (26).
4, the multiple article anti-lose system based on passive RF label according to claim 1 is characterized in that, described main control module is integrated in chip for cell phone, and described input media is a cell phone keyboard, and described output unit is the display screen of mobile phone.
5, the multiple article anti-lose system based on passive RF label according to claim 1, it is characterized in that, described main control module is integrated in the microprocessor of digital music player, described input media is the button of digital music player, and described output unit is the display screen of digital music player.
6, the multiple article anti-lose system based on passive RF label according to claim 1 is characterized in that, described radio-frequency (RF) tag has designed character field, for each label provides one or several character attibute.
7, the multiple article anti-lose system based on passive RF label according to claim 1 is characterized in that, described radio-frequency module includes resonant circuit, also has an emissive power control handle to be used to regulate effective work reading distance.
8, a kind of mode of operation of multiple article anti-lose system of passive RF label, it is characterized in that, this mode of operation is the monitoring alert mode, it comprises the steps: at first to start, and timer is read in scanning and incoming event is caught, and the cycle of timer has established in setting up procedure and has been saved down; Wait for the generation of timing and incoming event then; In timed events was handled, each work tap was read in scanning, if read less than just noting this label; After scanning reads whole labels, check whether the label that does not read was arranged in this cycle; If the label of not reading is arranged, then alarm prompt then need not be alarmed; This scan period finishes, and continues to wait for next incident.The processing procedure of incoming event is only handled " stop scanning " incident, just closes scanning timer, the internal memory etc. that resets immediately after receiving user's halt instruction, finishes monitoring alarm duty and is back to holding state.
9, a kind of mode of operation of multiple article anti-lose system of passive RF label is characterized in that, this mode of operation is instant checking mode, and it comprises the steps: each work tap of scanning reading, if read less than just noting this label; After scanning reads whole labels, check whether the label that does not read is arranged, and make corresponding prompt, then finish this time instant inspection work and be back to holding state; Instant inspection work be as required, single.
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| CN101639969A (en) * | 2009-08-28 | 2010-02-03 | 深圳市浩博高科技有限公司 | Technical scheme for stable distance and low power consumption of cellphone-theft preventer |
| CN101071468B (en) * | 2006-05-09 | 2010-10-13 | 普诚科技股份有限公司 | Wireless frequency identifying system and its control method |
| CN101436287B (en) * | 2008-12-12 | 2011-06-15 | 浙江大学宁波理工学院 | Method for monitoring attention degree classification of chaussure products in sale terminal |
| CN101257672B (en) * | 2007-09-12 | 2012-12-26 | 杭州义盛祥通信技术有限公司 | Phone with electronic label read-write function |
| CN103052974A (en) * | 2010-07-23 | 2013-04-17 | 林成珪 | Method and device for prevention loss of item and prompt search thereof |
| CN103310598A (en) * | 2013-07-02 | 2013-09-18 | 福建师范大学 | Alarm device based on safe distance recognition |
| CN103530982A (en) * | 2013-10-29 | 2014-01-22 | 杨伟 | Loss-prevention safety monitoring system |
| CN103870856A (en) * | 2013-11-05 | 2014-06-18 | 高贤荣 | Radio frequency identification technology-based micro personal object management intelligent system and method |
| CN105357252A (en) * | 2015-05-25 | 2016-02-24 | 曹树槐 | Internet of things based separate alarm and overall control module and ultra-sensing management system |
| CN109426841A (en) * | 2017-08-31 | 2019-03-05 | 南京理工大学 | Article anti-lose device and method based on Radio Frequency Identification Technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101071468B (en) * | 2006-05-09 | 2010-10-13 | 普诚科技股份有限公司 | Wireless frequency identifying system and its control method |
| CN101257672B (en) * | 2007-09-12 | 2012-12-26 | 杭州义盛祥通信技术有限公司 | Phone with electronic label read-write function |
| CN101436287B (en) * | 2008-12-12 | 2011-06-15 | 浙江大学宁波理工学院 | Method for monitoring attention degree classification of chaussure products in sale terminal |
| CN101639969A (en) * | 2009-08-28 | 2010-02-03 | 深圳市浩博高科技有限公司 | Technical scheme for stable distance and low power consumption of cellphone-theft preventer |
| CN103052974A (en) * | 2010-07-23 | 2013-04-17 | 林成珪 | Method and device for prevention loss of item and prompt search thereof |
| CN103052974B (en) * | 2010-07-23 | 2015-06-24 | 林成珪 | Method and device for prevention loss of item and prompt search thereof |
| CN103310598A (en) * | 2013-07-02 | 2013-09-18 | 福建师范大学 | Alarm device based on safe distance recognition |
| CN103530982A (en) * | 2013-10-29 | 2014-01-22 | 杨伟 | Loss-prevention safety monitoring system |
| CN103530982B (en) * | 2013-10-29 | 2016-11-23 | 宁波迪亚家用电器有限公司 | Anti-lost safety monitoring system |
| CN103870856A (en) * | 2013-11-05 | 2014-06-18 | 高贤荣 | Radio frequency identification technology-based micro personal object management intelligent system and method |
| CN105357252A (en) * | 2015-05-25 | 2016-02-24 | 曹树槐 | Internet of things based separate alarm and overall control module and ultra-sensing management system |
| CN109426841A (en) * | 2017-08-31 | 2019-03-05 | 南京理工大学 | Article anti-lose device and method based on Radio Frequency Identification Technology |
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