CN101639964A - RF-based portable goods guard against theft and alarm system and control method thereof - Google Patents
RF-based portable goods guard against theft and alarm system and control method thereof Download PDFInfo
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- CN101639964A CN101639964A CN200910042261A CN200910042261A CN101639964A CN 101639964 A CN101639964 A CN 101639964A CN 200910042261 A CN200910042261 A CN 200910042261A CN 200910042261 A CN200910042261 A CN 200910042261A CN 101639964 A CN101639964 A CN 101639964A
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Abstract
The invention discloses an RF-based portable goods guard against theft and alarm system and a control method thereof, mainly aiming at alarming problems of portable goods, in particular vehicle-bornegoods. The system of the invention comprises a reader, more than two electronic tags and a wireless alarm, wherein, the main parts of the reader and the electronic tags are a main controller and an RFIC; the system comprises the following hardware of a module whose monitoring range is selectable, a low battery detection module and a new tag identification module, and the system can realize operation with collision prevention and low power consumption. The invention has low power consumption and long service life of batteries, is easy to realize the monitoring of portable goods or valuables, such as office PC, luggage, mobile phones and the like.
Description
Technical field
The invention belongs to a kind of ultrahigh frequency wireless burglar alarm system field, particularly a kind of portable article guard against theft and alarm system and control method thereof based on less radio-frequency.
Background technology
Radio frequency identification (RFID) technology becomes a kind of mainstream applications technology gradually, and this technology makes rapid item identification become possibility.It is high that radio RF recognition technology has stability, and movability is strong, and is cheap, is not subject to the characteristics of environment (as temperature) influence.At present in the guard against theft and alarm system of portable article, mainly also be to use some mechanical locks or infrared technique to carry out burglar alarm, radio RF recognition technology is used as yet with portable article antitheft in.In view of the characteristics of the technological merit and the portable item of above-mentioned radio frequency identification, radio RF recognition technology will have good development prospect in the burglar alarm field.
China Patent No. is that the patent of invention of ZL200620119023.5 discloses a kind of RFID goods monitoring system, in described disclosed patented technology, article monitoring terminal, radio-frequency (RF) tag, Item Management central host and alarm unit have been comprised, corresponding article monitoring terminal of each radio-frequency (RF) tag wherein, this article monitoring terminal is connected with the Item Management central host by network then, is connected with alarm unit by the Item Management central host again.The prior art more complicated, the corresponding article monitoring terminal of each radio-frequency (RF) tag, this just makes needs more article monitoring terminal, has also increased an Item Management central host in addition, and this has just increased the cost and the consumption of system.In addition, this patented technology does not realize that adjustable, the low electric weight of monitoring range detects and new tag recognition function.
Summary of the invention
The invention provides a kind of portable article guard against theft and alarm system and method thereof based on less radio-frequency.It has realized monitoring by a reader function of several electronic tags, and the number of having saved reader has been removed the requirement that is provided with of administrative center's main frame from, reduces cost, and is simple and reliable, is applicable to burglar alarm application more among a small circle.
Another object of the present invention provides this control method based on the portable article guard against theft and alarm system of less radio-frequency, realizes anti-collision algorithms, monitoring range is adjustable, and the function that reduces power consumption.
For solving the problems of the technologies described above, the present invention includes following technical scheme: a kind of portable article guard against theft and alarm system based on less radio-frequency comprises a reader, plural electronic tag and alarm unit; Described reader is connected by radio communication with electronic tag, and reader is connected with alarm unit by radio communication;
Described reader comprises reads master controller, reader wireless transmission receiver module, first antenna, wireless sending module and second antenna; Reading master controller is connected with first antenna by reader wireless transmission receiver module; Reading master controller is connected with second antenna by wireless sending module;
Described alarm unit comprises alarm, wireless receiving module and the 4th antenna, and described alarm is connected with the 4th antenna by wireless receiving module;
Described electronic tag comprises label master controller, electronic tag wireless transmission receiver module, third antenna, and described label master controller is connected with third antenna by electronic tag wireless transmission receiver module.
Described reading controller comprises and reads the monitoring range selection module that master controller is connected.It is reader emissive power magnitude regulator that described monitoring range is selected module.Described reading controller also comprises the LED display module of display system running status.
Described electronic tag comprises the low electric weight detection module that is connected with the label master controller; Low electric weight detection module comprises low electric weight detection chip, and low electric weight detection chip input end is connected with the voltage end of electronic tag, and output terminal is connected with the label master controller.
Described electronic tag comprises a new tag recognition module that is connected with label master controller input end, and new tag recognition module is a toggle switch.
Another object of the present invention is to provide a kind of control method of the portable article guard against theft and alarm system based on less radio-frequency, it is characterized in that comprising the steps: at least
A, set address code for each electronic tag, regulate the monitoring range of reader;
B, reader are taked the mode of speech earlier, send signal for one by one each electronic tag, and whether the detected electrons label is at the monitoring range of reader;
C, when electronic tag is moved out of the monitoring range of reader, reader is by reader wireless transmission receiver module, receive the alerting signal that electronic tag sends, reader notice wireless sending module sends a signal to wireless receiving module, and wireless receiving module is controlled alarm equipment alarm after receiving signal.
Among the described step B, the process circulation of sending signal for one by one all electronic tags with reader is a sense cycle 2～6 times, if in the sense cycle, the signal that reader can be received 1 time or once above electronic tag returns, judge that then electronic tag is in the monitoring range of reader, reader enters next sense cycle, otherwise reader judgement electronic tag is moved out of the monitoring range of reader.
It is characterized in that among the described step B that the interim that reader transmits, the radio frequency chip of device is in off-mode, single-chip microcomputer is in low-power consumption mode.
The monitoring range of reader carries out as follows in the described steps A, set the emissive power of several gears earlier to reader, after in case reader is set certain fixing gear, reader sends a signal to electronic tag, electronic tag is according to the signal content that receives, automatically regulate the emissive power of self, realize that monitoring range is adjustable.
Good effect of the present invention is: it takes the communication mode of the corresponding a plurality of electronic tags of a reader (1), thereby has reduced the quantity of reader.A plurality of electronic tags are worked simultaneously and the signal conflict that produces for fear of a reader, anti-collision algorithms has been adopted in this invention.Be that each label is set a unique address code, adopt the mode of reader-talks-first, send signal to label one by one, whether tags detected is within the monitoring range of reader.(2) reader also is provided with the driving switch that can regulate emissive power, reader can set position, and can send a signal to electronic tag, the signal content that electronic tag receives by judgement, automatically regulate the emissive power of self, thereby realize that monitoring range is adjustable.(3) be provided with low electric weight detection chip in the electronic tag, when electric weight was lower than ratings, electronic tag sent a distinctive signal to reader, informed the low electric weight of label of user's correspondence.(4) be provided with one 8 toggle switch and be connected with the label master controller in the label, the user can set the address of new label by regulating toggle switch, thereby has realized the interpolation function of new label.
Description of drawings
Fig. 1 is the theory diagram of reader of the present invention, alarm, electronic tag;
Fig. 2 is a reader circuitry schematic diagram of the present invention;
Fig. 3 is a tag circuit schematic diagram of the present invention;
Fig. 4 is a warning circuit schematic diagram of the present invention;
Fig. 5 is the low-power consumption algorithm routine block diagram of label among the present invention;
Fig. 6 is a new tag recognition flow chart among the present invention.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the present invention is described in detail.
Fig. 1 is a fundamental diagram of the present invention, comprises 1, two above electronic tag 2 of a reader, and alarm unit 3, reader 1 and electronic tag 2 are connected by radio communication, and reader 1 is connected with alarm unit 3 by radio communication.When the electronic tag in the system 2 is worked simultaneously, in order to prevent signal conflict, set a unique address code for earlier each label, adopt reader 1 mode of speech earlier, send signals for one by one electronic tag 2, whether tags detected is in the monitoring range of reader.Simultaneously, a wireless sending module 7 is installed on reader 1, a wireless receiving module 12 is installed on alarm unit 3.When one of them electronic tag 2 is the monitoring range that moves out reader 1 by the people, reader 1 notice wireless sending module 7 sends a signal to wireless receiving module 12, and the control warning horn was reported to the police after wireless receiving module 12 was subjected to signal.
Fig. 1～Fig. 4 is the theory diagram and the circuit theory diagrams of reader 1, electronic tag 2, alarm unit 3, and reader 1 comprises reads master controller 4, reader wireless transmission receiver module 5, first antenna 6, wireless sending module 7 and second antenna 8, monitoring range selection module 9; Described electronic tag 2 comprises label master controller 16, electronic tag wireless transmission receiver module 15, third antenna 14, low electric weight detection module 18 and new tag recognition module 17; Described alarm unit 3 comprises alarm 13, wireless receiving module 12 and the 4th antenna 11.
The method that the present invention relates to comprises the anti-collision algorithms when a plurality of labels are applied to the goods burglar alarm simultaneously, and monitoring range is adjustable, the low-power consumption algorithm of extending battery life, and low electric weight detects, and discerns new label, the high reliability of radio alarming and system.
The realization of anti-collision algorithms: when six electronic tags 2 are worked simultaneously in the system, will produce signal conflict.The inventor is by setting a unique address code to each label.Adopt reader 1 mode of speech earlier, send signals for one by one electronic tag 2, whether tags detected is within the monitoring range of reader 1.
The realization of radio alarming function: on the hardware, by the state of radio receiving transmitting module control warning horn.That is, a wireless sending module 7 is installed on reader 1, a wireless receiving module 12 is installed on warning horn 13.On the software, be achieved as follows function by the coding code: when electronic tag 2 is when shifting out the monitoring range of reader 1 by the people, reader 1 notice wireless sending module 7 sends a signal to wireless receiving module 12, and the alert 13 newspaper devices of control were reported to the police after wireless receiving module 12 received signal.
The realization of system reliability: sending 4 signals by the circulation of coding code setting reader is the one-time detection cycle to label.If in sense cycle, the signal that reader can be received once or once above electronic tag 2 returns judges that then electronic tag 2 is within the monitoring range of reader 1.Otherwise, being considered as electronic tag 2 and being moved out of monitoring range, wireless alarm 13 is reported to the police simultaneously.
The realization of the function that monitoring range is adjustable: be provided with monitoring range in the reader 1 and select module 9, monitoring range selects module 9 for can regulate the driving switch of reader emissive power.Be provided with the emissive power of several gears in the reader 1, in case set certain gear, reader 1 promptly sends a signal to electronic tag 2.The label electronic tag is regulated the emissive power of self automatically, thereby has been realized the adjustable of monitoring range by judging the content of the signal that receives.
The realization of low electric weight measuring ability: on the hardware, electronic tag 2 is provided with low electric weight detection module 18, and described low electric weight detection module 18 uses low electric weight detection chip, and it is connected with label master controller 16.Be lower than 2.7V at electronic tag 2 voltages, when promptly hanging down electric weight, electronic tag 2 sends a distinctive signal to reader 1, and after reader 1 was received this distinctive signal, system running state display module 10 informed that the pairing label of user has been in low state of charge.
Discern the realization of new label function: on the hardware, the toggle switch that the P1 mouth of label master controller 16 is external 8, and the P1 mouth is made as the input port.Make that by the coding code address of electronic tag 2 is the input value of P1 mouth.When adding new label like this after label is lost, the user can set the address of new label by regulating toggle switch.
Fig. 5 is a label low-power consumption algorithm routine block diagram of the present invention.In order to realize the purpose of low-power consumption, the present invention is except the single-chip microcomputer (as MSP430 series monolithic or Mega64) of selecting super low-power consumption on hardware for use, on software, realize the purpose of low-power consumption according to the low-power consumption algorithm, shorten the working time of radio frequency chip by the coding code as far as possible, finish when radio frequency chip and once to be in off-mode after sending the reception task, single-chip microcomputer enters low-power consumption mode simultaneously, by the time when reader sends next signal, open single-chip microcomputer and radio frequency chip again.So circulation is gone down, and it is minimum that power consumption is dropped to.
Fig. 6 is a new tag recognition flow chart among the present invention.On the hardware, the toggle switch that the P1 mouth of label master controller 16 is external 8, and the P1 mouth is made as the input port.By the coding code, read P1 message breath, and with the address of result as electronic tag 2.When adding new label like this after label is lost, the user can set the address of new label by regulating toggle switch.
Claims (10)
1, a kind of portable article guard against theft and alarm system based on less radio-frequency is characterized in that: comprise a reader (1), plural electronic tag (2) and alarm unit (3); Described reader (1) is connected by radio communication with electronic tag (2), and reader (1) is connected with alarm unit (3) by radio communication;
Described reader (1) comprises reads master controller (4), reader wireless transmission receiver module (5), first antenna (6), wireless sending module (7) and second antenna (8); Reading master controller (4) is connected with first antenna (6) by reader wireless transmission receiver module (5); Reading master controller (4) is connected with second antenna (8) by wireless sending module (7);
Described alarm unit (3) comprises alarm (13), wireless receiving module (12) and the 4th antenna (11), and described alarm (13) is connected with the 4th antenna (11) by wireless receiving module (12);
Described electronic tag (2) comprises label master controller (16), electronic tag wireless transmission receiver module (15), third antenna (14), and described label master controller (16) is connected with third antenna (14) by electronic tag wireless transmission receiver module (15).
2, the article anti-theft warning system based on less radio-frequency according to claim 1 is characterized in that: described reading controller (4) comprises and reads the monitoring range selection module (9) that master controller (4) is connected.
3, the article anti-theft warning system based on less radio-frequency according to claim 2 is characterized in that: it is reader emissive power magnitude regulator that described monitoring range is selected module (9).
4, the article anti-theft warning system based on less radio-frequency according to claim 3 is characterized in that: described reading controller (4) also comprises the LED display module (10) of display system running status.
5, the article anti-theft warning system based on less radio-frequency according to claim 1 is characterized in that: described electronic tag (2) comprises the low electric weight detection module (18) that is connected with label master controller (16); Low electric weight detection module (18) comprises low electric weight detection chip, and low electric weight detection chip input end is connected with the voltage end of electronic tag (2), and output terminal is connected with label master controller (16).
6, the article anti-theft warning system based on less radio-frequency according to claim 5, it is characterized in that: described electronic tag (2) comprises a new tag recognition module (17) that is connected with label master controller (16) input end, and new tag recognition module (17) is a toggle switch.
7, the control method of the portable article guard against theft and alarm system based on less radio-frequency according to claim 1 is characterized in that comprising the steps: at least
A, set address code for each electronic tag (2), regulate the monitoring range of reader (1);
B, reader (1) are taked the mode of speech earlier, send signal for one by one each electronic tag (2), and whether detected electrons label (2) is at the monitoring range of reader (1);
C, when electronic tag (2) is moved out of the monitoring range of reader (1), reader (1) is by reader wireless transmission receiver module (5), receive the alerting signal that electronic tag (2) sends, reader (1) notice wireless sending module (7) sends a signal to wireless receiving module (12), and wireless receiving module (12) is controlled alarm (13) warning after receiving signal.
8, the control method of the portable article guard against theft and alarm system based on less radio-frequency according to claim 7, it is characterized in that: among the described step B, the process circulation of sending signal for one by one all electronic tags (2) with reader (1) is a sense cycle 2～6 times, if in the sense cycle, the signal that reader (1) can be received 1 time or once above electronic tag (2) returns, judge that then electronic tag (2) is in the monitoring range of reader (1), reader (1) enters next sense cycle, otherwise reader (1) judgement electronic tag (2) is moved out of the monitoring range of reader (1).
9, the control method of the portable article guard against theft and alarm system based on less radio-frequency according to claim 7, it is characterized in that among the described step B, the interim that reader (1) transmits, the radio frequency chip of device is in off-mode, and single-chip microcomputer is in low-power consumption mode.
10, the control method of the portable article guard against theft and alarm system based on less radio-frequency according to claim 7, the monitoring range that it is characterized in that reader in the described steps A (1) carries out as follows, set the emissive power of several gears for earlier reader (1), after in case reader (1) is set certain fixing gear, reader (1) sends a signal to electronic tag (2), electronic tag (2) is according to the signal content that receives, automatically regulate the emissive power of self, realize that monitoring range is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100422619A CN101639964B (en) | 2009-08-31 | 2009-08-31 | RF-based portable goods theft-proof and alarm system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100422619A CN101639964B (en) | 2009-08-31 | 2009-08-31 | RF-based portable goods theft-proof and alarm system and control method thereof |
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| Publication Number | Publication Date |
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| CN101639964A true CN101639964A (en) | 2010-02-03 |
| CN101639964B CN101639964B (en) | 2012-05-30 |
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| CN2009100422619A Expired - Fee Related CN101639964B (en) | 2009-08-31 | 2009-08-31 | RF-based portable goods theft-proof and alarm system and control method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894290A (en) * | 2010-04-06 | 2010-11-24 | 上海复旦微电子股份有限公司 | Non-contact communication device |
| CN103489016A (en) * | 2013-08-26 | 2014-01-01 | 广西南宁市东森动力信息科技有限公司 | RFID anti-collision read-write device and control method thereof |
| CN104050773A (en) * | 2013-03-14 | 2014-09-17 | 名硕电脑(苏州)有限公司 | Mother monitoring device and monitoring method executed by mother monitoring device with adjustable monitoring range |
| CN107239721A (en) * | 2017-05-16 | 2017-10-10 | 中国人民解放军信息工程大学 | Antitheft method and device |
| CN107749096A (en) * | 2016-05-04 | 2018-03-02 | 睿芯联科（北京）电子科技有限公司 | Safe electronic lock and its control method based on ultrahigh frequency RFID |
| CN110555963A (en) * | 2019-09-06 | 2019-12-10 | 四川长虹电器股份有限公司 | Anti-theft device and system based on acoustic magnetic detection |
| CN111640251A (en) * | 2020-04-22 | 2020-09-08 | 华南农业大学 | Luggage anti-mistaking alarm system and luggage supervision method based on alarm system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1716270B (en) * | 2004-06-30 | 2012-09-26 | 深圳市朗科科技股份有限公司 | Anti-theft system based on wireless radio frequency label technology |
| CN101091197B (en) * | 2004-11-18 | 2010-05-12 | 传感电子公司 | EAS reader detecting EAS function from RFID device |
| CN101093556A (en) * | 2007-07-27 | 2007-12-26 | 北京华大恒泰科技有限责任公司 | Active radio frequency identification label, system and reading / writing method |
| CN201215662Y (en) * | 2008-06-26 | 2009-04-01 | 上海工程技术大学 | Passive electronic label based on wireless transmission |
-
2009
- 2009-08-31 CN CN2009100422619A patent/CN101639964B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894290A (en) * | 2010-04-06 | 2010-11-24 | 上海复旦微电子股份有限公司 | Non-contact communication device |
| CN101894290B (en) * | 2010-04-06 | 2015-07-08 | 上海复旦微电子集团股份有限公司 | Non-contact communication device |
| CN104050773A (en) * | 2013-03-14 | 2014-09-17 | 名硕电脑(苏州)有限公司 | Mother monitoring device and monitoring method executed by mother monitoring device with adjustable monitoring range |
| CN103489016A (en) * | 2013-08-26 | 2014-01-01 | 广西南宁市东森动力信息科技有限公司 | RFID anti-collision read-write device and control method thereof |
| CN103489016B (en) * | 2013-08-26 | 2016-08-10 | 广西大学 | RFID anti-collision read-write device and control method thereof |
| CN107749096A (en) * | 2016-05-04 | 2018-03-02 | 睿芯联科（北京）电子科技有限公司 | Safe electronic lock and its control method based on ultrahigh frequency RFID |
| CN107749096B (en) * | 2016-05-04 | 2024-03-05 | 睿芯联科（北京）电子科技有限公司 | Safety electronic lock based on ultrahigh frequency RFID and control method thereof |
| CN107239721A (en) * | 2017-05-16 | 2017-10-10 | 中国人民解放军信息工程大学 | Antitheft method and device |
| CN110555963A (en) * | 2019-09-06 | 2019-12-10 | 四川长虹电器股份有限公司 | Anti-theft device and system based on acoustic magnetic detection |
| CN110555963B (en) * | 2019-09-06 | 2021-01-26 | 四川长虹电器股份有限公司 | Anti-theft device and system based on acoustic magnetic detection |
| CN111640251A (en) * | 2020-04-22 | 2020-09-08 | 华南农业大学 | Luggage anti-mistaking alarm system and luggage supervision method based on alarm system |
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| CN101639964B (en) | 2012-05-30 |
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