CN101714207B - Electronic tag infrared positioning system - Google Patents
Electronic tag infrared positioning system Download PDFInfo
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- CN101714207B CN101714207B CN200910110646A CN200910110646A CN101714207B CN 101714207 B CN101714207 B CN 101714207B CN 200910110646 A CN200910110646 A CN 200910110646A CN 200910110646 A CN200910110646 A CN 200910110646A CN 101714207 B CN101714207 B CN 101714207B
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Abstract
The invention relates to an electronic tag infrared positioning system, and belongs to the field of RFID technical application. The electronic tag infrared positioning system solves the problems that the conventional infrared positioning technology is influenced by external environment greatly, tag signals received by a reader-writer are not unique and a battery and a high-power infrared pipe are short in service life. A flash memory unit of the reader-writer is connected with a transmitting control unit which is connected with a pulse driving unit; the pulse driving unit is connected with an infrared transmitting antenna; a microwave receiving and demodulating unit is connected with a reader-writer control unit; an infrared receiving antenna of an electronic tag is connected with a tag control unit; two control ends of the tag control unit are respectively connected with the infrared receiving antenna and a microwave transmitting unit; the microwave transmitting unit is connected with a modulation unit; the modulation unit is connected with the tag control unit; and the modulation unit is connected with the transmitting antenna. The infrared positioning technology of the invention is not interfered by the external environment, the service life of the battery and the infrared pipe are prolonged, and simultaneously, the infrared positioning technology can provide the unique signal for the tag received by the reader-writer.
Description
Technical field
The present invention relates to a kind of infrared location system of forming by read write line and electronic tag, belong to the RFID technical applications.
Background technology
The main principle of work of infrared location technology that is applied at present on the electronic tag is to launch insignificant infrared signal continuously by read write line; Electronic tag gets into after effective region of acceptance; Infrared receiving terminal on the label is accepted infrared signal, triggers microwave transmission system emission FSK microwave signal (carrier wave mainly contains two kinds of 433MHZ and 2.4GHZ) again.Microwave receiving device on the read write line receives the also data message of demodulation label.
Because infrared receiver receives the interference of extraneous various infrared radiation sources easily, makes electronic tag usually by false triggering, cause the operating distance of label to change greatly (by tens meters to zero distance), shorter battery life; In addition; Because (transmitter current is generally more than 10MA for 433MHZ or 2.4G communication system; Power consumption is bigger) the directivity of dual-mode antenna restive, make several to be received simultaneously by the read write line in effective perform region of microwave at the electronic tag that diverse location is triggered.
Therefore, the applicant thinks present infrared location technology, because the defective of scheme and material technology, exists to be affected by the external environment greatlyyer, and read write line is accepted label signal does not have uniqueness, battery and infrared tube short problem in serviceable life.
Summary of the invention
The object of the present invention is to provide a kind of can solve existing infrared location technology exist be affected by the external environment bigger; Read write line is accepted label signal does not have uniqueness, and battery and infrared tube serviceable life is the novel electronic label infrared location system of short problem.
The invention provides a kind of electronic tag infrared positioning system for reaching above purpose; It comprises infrared read write line and electronic tag; Infrared read write line comprises emission controlling unit, flash cell, pulse driver unit, infrared transmitting antenna and microwave receiving demodulating unit; The data output end of flash cell is connected with the data input pin of emission controlling unit; The data output end of emission controlling unit is connected with the data input pin of pulse driver unit, and the data output end of pulse driver unit is connected with the data input cell of infrared transmitting antenna, and the data output end of microwave receiving demodulating unit is connected with the data input pin of flash cell; The receiving sensitivity that comprises electronic tag reduces infrared receiving antenna, label control module, microwave transmitter unit, modulating unit and the emitting antenna about 10 times artificially; The infrared data output terminal of infrared receiving antenna is connected with the infrared data input end of label control module; First control output end of label control module is connected with the control input end of infrared receiving antenna; Second control output end of label control module is connected with the control input end of microwave transmitter unit; The data output end of microwave transmitter unit is connected with the data input pin of modulating unit; The modulation signal output terminal of label control module is connected with the modulation signal input end of modulating unit, and the data output end of modulating unit is connected with the data input pin of emitting antenna.
The invention has the advantages that: the present invention receives combining of infotech through Infrared High-Power emission information with the muting sensitivity of label; Make existing infrared location technology possess the characteristics that do not receive external interference; And increased serviceable life of battery and infrared tube, can also accept label for read write line simultaneously unique signal is provided.
Description of drawings
Fig. 1 is the electrical block diagram of the infrared read write line of a kind of electronic tag infrared positioning system of the present invention;
Fig. 2 is the electrical block diagram of the electronic tag of a kind of electronic tag infrared positioning system of the present invention.
Embodiment
Embodiment of the present invention has proposed a kind of infrared read write line; As shown in Figure 1; Can form by emission controlling unit 1, flash cell 2, pulse driver unit 3, infrared transmitting antenna 4 and microwave receiving demodulating unit 5; The data output end of flash cell 2 is connected with the data input pin of emission controlling unit 1; The data output end of emission controlling unit 1 is connected with the data input pin of pulse driver unit 3, and the data output end of pulse driver unit 3 is connected with the data input cell of infrared transmitting antenna 4, and the data output end of microwave receiving demodulating unit 5 is connected with the data input pin of flash cell 2.
The principle of work of read write line is: when read write line powers on; Emission controlling unit 1 reads equipment number (8BIT) and the transmit cycle parameter that needs emission from flash cell 2; And reaching the pulse data more than the 4V through pulse driver unit 3 output VP-P, it is 3 watts or above high power infrared transmitting tube that infrared transmitting antenna 4 adopts power consumptions.After this emission controlling unit 1 will be according to initial parameters output data again and again.Infrared transmitting antenna 4 wherein can be attempted by between power supply and high-power MOS tube (2SK2545) the leakage level by two infrared transmitting tube series connection; Data (8 totally 10 groups of the Manchester's cdes of seeing off by emission controlling unit 1 (model MSP430-2011); Infrared carrier frequency 40KHZ) the gate driving infrared transmitting tube of access metal-oxide-semiconductor; All be provided with the convex lens at 30 degree angles on each infrared transmitting tube, can increase ultrared transmitting range; Angle between two infrared transmitting tubes can make the angle of its Card Reader can reach more than 2 times of single infrared transmitting tube for 10～20 degree.
The microwave receiving demodulating unit 5 of read write line as one independently the unit after read write line powers on, just begin to get into accepting state; Microwave receiving demodulating unit 5 comprises receiving antenna 51, amplifying unit 52, demodulating unit 53, difference amplifying unit 54, shaping unit 55 and receives control module 56; The data output end of receiving antenna 51 is connected with the data input pin of amplifying unit 52; The data output end of amplifying unit 52 is connected with the data input pin of demodulating unit 53; The data output end of demodulating unit 53 is connected with the data input pin of difference amplifying unit 54; The data output end of difference amplifying unit 54 is connected with the data input pin of shaping unit 55; The data output end of shaping unit 55 is connected with the data input pin that receives control module 56, and the data output end that receives control module 56 is connected with the data input pin of flash cell 2.Microwave receiving demodulating unit 5 is when read write line powers on and be in the state that receives the electronic tag signal; The signal that receiving antenna 51 receives at first carries out Microwave Low-Noise through amplifying unit 52 and amplifies; Signal after the amplification passes through difference amplifying unit 54 and shaping unit 55 after amplifying through demodulating unit 53 again; After receiving control module 56 decodings, send to flash cell 2 at last, accomplish a read write line signal receiving cycle.After receiving correct electronic tag number (4 or 4 above bytes), first byte (8BIT) of data is compared with equipment number, only equipment just can be uploaded the data (not containing the equipment number part) that receive when two groups of data equate fully.
Embodiment of the present invention also provides a kind of electronic tag; As shown in Figure 2; Can form by infrared receiving antenna 6, label control module 7, microwave transmitter unit 8, modulating unit 9 and emitting antenna 10 that receiving sensitivity reduces about 10 times artificially; The infrared data output terminal of infrared receiving antenna 6 is connected with the infrared data input end of label control module 7; First control output end of label control module 7 is connected with the control input end of infrared receiving antenna 6; Second control output end of label control module 7 is connected with the control input end of microwave transmitter unit 8; The data output end of microwave transmitter unit 8 is connected with the data input pin of modulating unit 9, and the modulation signal output terminal of label control module 7 is connected with the modulation signal input end of modulating unit 9, and the data output end of modulating unit 9 is connected with the data input pin of emitting antenna 10.
The principle of work of electronic tag is: beyond infrared effective receiving area; Label control module 7 is provided with a pulsed operation cycle; Short one-period of this period ratio infrared emission cycle data time, the width of pulse is greater than 0.7MS (because the width in infrared trigger pip cycle is 0.6MS), in case such being provided with can guarantee that electronic tag gets into infrared receiving area; Label control module 7 will receive infrared data through infrared receiving antenna 6; Then these data are deciphered, decoding finishes, and to put Vo1 be low level to back label control module 7, turn-offs infrared receiving circuit; With rearmounted Vo2 is high level; Power on for microwave transmitter unit 8 (uhf band), then output adds the data of the label id number of equipment number (4 or 4 above bytes), and the microwave signal of this data-modulated UHF is launched through emitting antenna 10 through modulating unit 9.The infrared receiving antenna 6 of electronic tag can adopt " infrared receiving terminal " commonly used on the market, receives the plastics the inside that head part can be encapsulated in light colour during actual installation.
The technical scheme that infrared read write line and the electronic tag by electronic tag that embodiment of the present invention proposes formed has following advantage:
1) Card Reader distance in read write line the place ahead 6 meters adjustable, horizontal sextant angle 30～60 degree are adjustable;
2) the work maximum distance error in daytime and evening is no more than 20%;
3) microwave operational frequencies meets the requirement of RFID frequency range near 920MHZ;
4) low-power consumption: the button cell working time of a joint 500mAh reached more than 4 years;
5) low cost: during batch process, cost of manufacture is significantly less than the price of existing international like product near passive card.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. electronic tag infrared positioning system; It comprises infrared read write line and electronic tag; It is characterized in that; It comprises emission controlling unit (1), flash cell (2), pulse driver unit (3), infrared transmitting antenna (4) and microwave receiving demodulating unit (5) infrared read write line; The data output end of flash cell (2) is connected with the data input pin of emission controlling unit (1); The data output end of emission controlling unit (1) is connected with the data input pin of pulse driver unit (3), and the data output end of pulse driver unit (3) is connected with the data input pin of infrared transmitting antenna (4), and the data output end of microwave receiving demodulating unit (5) is connected with the data input pin of flash cell (2); Said infrared transmitting antenna (4) comprises at least one group of above Infrared High-Power power valve, and every group is installed in series between the leakage level and power supply of driving tube by two, all is provided with the convex lens of 30 degree on each infrared transmitting tube.
2. a kind of electronic tag infrared positioning system according to claim 1 is characterized in that, the emissive power of said infrared transmitting antenna (4) is more than 3 watts.
3. a kind of electronic tag infrared positioning system according to claim 1 is characterized in that, the angle between said two infrared transmitting tubes (4) is 10～20 degree.
4. according to any described a kind of electronic tag infrared positioning system of claim 1-3; It is characterized in that; Said microwave receiving demodulating unit (5) comprises receiving antenna (51), amplifying unit (52), demodulating unit (53), difference amplifying unit (54), shaping unit (55) and receives control module (56); The data output end of receiving antenna (51) is connected with the data input pin of amplifying unit (52); The data output end of amplifying unit (52) is connected with the data input pin of demodulating unit (53); The data output end of demodulating unit (53) is connected with the data input pin of difference amplifying unit (54); The data output end of difference amplifying unit (54) is connected with the data input pin of shaping unit (55), and the data output end of shaping unit (55) is connected with the data input pin that receives control module (56), and the data output end that receives control module (56) is connected with the data input pin of flash cell (2).
5. electronic tag infrared positioning system; It is characterized in that; Electronic tag comprises that receiving sensitivity reduces by 10 times infrared receiving antenna (6), label control module (7), microwave transmitter unit (8), modulating unit (9) and emitting antenna (10); The infrared data output terminal of infrared receiving antenna (6) is connected with the infrared data input end of label control module (7); First control output end of label control module (7) is connected with the control input end of infrared receiving antenna (6); Second control output end of label control module (7) is connected with the control input end of microwave transmitter unit (8); The data output end of microwave transmitter unit (8) is connected with the data input pin of modulating unit (9), and the modulation signal output terminal of label control module (7) is connected with the modulation signal input end of modulating unit (9), and the data output end of modulating unit (9) is connected with the data input pin of emitting antenna (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910110646A CN101714207B (en) | 2009-10-16 | 2009-10-16 | Electronic tag infrared positioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910110646A CN101714207B (en) | 2009-10-16 | 2009-10-16 | Electronic tag infrared positioning system |
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| CN101714207A CN101714207A (en) | 2010-05-26 |
| CN101714207B true CN101714207B (en) | 2012-08-29 |
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| CN200910110646A Expired - Fee Related CN101714207B (en) | 2009-10-16 | 2009-10-16 | Electronic tag infrared positioning system |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103136577A (en) * | 2013-03-22 | 2013-06-05 | 哈尔滨鑫海城科技发展有限公司 | Directional remote active electronic tag and reader thereof |
| CN104065456B (en) * | 2014-06-26 | 2017-08-15 | 深圳市安派电子有限公司 | The receiving/transmission method and system of LED light modulation codings |
| US10101429B2 (en) * | 2015-02-25 | 2018-10-16 | Battelle Memorial Institute | Acoustic transmission device and process for tracking selected hosts |
| US10067112B2 (en) | 2015-09-30 | 2018-09-04 | Battelle Memorial Institute | Autonomous sensor fish to support advanced hydropower development |
| US10236920B2 (en) | 2015-12-15 | 2019-03-19 | Battelle Memorial Institute | Signal transmitter and methods for transmitting signals from animals |
| US11278004B2 (en) | 2015-12-15 | 2022-03-22 | Battelle Memorial Institute | Transmitters for animals and methods for transmitting from animals |
| US10531639B2 (en) | 2016-08-25 | 2020-01-14 | Battelle Memorial Institute | Systems and methods for monitoring organisms within an aquatic environment |
| US10318772B1 (en) * | 2018-03-28 | 2019-06-11 | Rockwell Automation Technologies, Inc. | Monitoring of motor control center assets |
| CN109085535B (en) * | 2018-06-29 | 2020-10-16 | 北京迈格威科技有限公司 | Positioning system and method for shelf electronic tag |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767532A (en) * | 2005-11-29 | 2006-05-03 | 大连维深自动识别技术有限公司 | Open type super high frequency RF recognition protocol platform |
| CN201218962Y (en) * | 2008-05-12 | 2009-04-08 | 公安部第三研究所 | RFID label safety lock based on infrared technology |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767532A (en) * | 2005-11-29 | 2006-05-03 | 大连维深自动识别技术有限公司 | Open type super high frequency RF recognition protocol platform |
| CN201218962Y (en) * | 2008-05-12 | 2009-04-08 | 公安部第三研究所 | RFID label safety lock based on infrared technology |
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| CN101714207A (en) | 2010-05-26 |
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