CN101944186A - Reading and writing method of high-speed moving RFID (Radio Frequency Identification Devices) and high-speed RFID reader-writer - Google Patents
Reading and writing method of high-speed moving RFID (Radio Frequency Identification Devices) and high-speed RFID reader-writer Download PDFInfo
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- CN101944186A CN101944186A CN2010102988224A CN201010298822A CN101944186A CN 101944186 A CN101944186 A CN 101944186A CN 2010102988224 A CN2010102988224 A CN 2010102988224A CN 201010298822 A CN201010298822 A CN 201010298822A CN 101944186 A CN101944186 A CN 101944186A
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- indicating number
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Abstract
The invention relates to a reading and writing method of high-speed moving RFID (Radio Frequency Identification Devices) and a high-speed RFID reader-writer, wherein the writing and reading method of the high-speed mobile RFID is realized through an RFID power supply, a writing transmitter, an RFID reading receiver, a microprocessor, a multi-branch power divider, a duplexer, an antenna, a moving object detector, a transmitting filter and a receiving filter. The invention can meet the requirements on correct reading and writing of the high-speed moving RFID and has the advantages of simple structure and convenient implementation.
Description
Technical field
The present invention is to the reading/writing method of high-speed mobile RFID and high-speed RFID read write line, belongs to the technology of Internet of things field.
Background technology
At present in reading/writing method to RFID, be generally point (read write line that contains single antenna) to point (single RFID) or a bit (read write line that contains single antenna) to the read-write mode of multiple spot (a plurality of RFID), because in read-write process to RFID, need enough activationary times and access time, if RFID moves too fast, and effectively read interval when too small, as read-write to the passive RFID of the car body bottom that is installed in high-speed mobile, the phenomenon that can not normally read of appearance easily then.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of reading/writing method and high-speed RFID read write line, realize demand the correct read-write of high-speed mobile RFID to high-speed mobile RFID, and have simple in structure, implement characteristics easily.
For achieving the above object, the present invention introduces a kind of reading/writing method to high-speed mobile RFID, it is characterized in that following method of work is arranged:
(1) adopts the electromagnetic method of supplying power to of continuous chain spatial diversity antennas synchronized transmissions;
(2) adopt continuous chain spatial diversity antennas to receive and launch the transmission method of information code;
(3) adopt the mobile object detection information to control the work method for opening and closing that RFID powers and writes transmitter;
(4) in the raw information sign indicating number frame of transmission, insert frame sequence sign indicating number and section sequence code according to the sequence code space-number of setting;
(5) information code that receives being recovered the raw information sign indicating number according to the sequence code space-number of setting, frame sequence sign indicating number and section sequence code handles, promptly remove the duplicate message sign indicating number between frame sequence sign indicating number and the section sequence code, complete information sign indicating number between retention frame sequence code and the section sequence code, according to the sequence code space-number of setting, frame sequence sign indicating number and section sequence code series arrangement and combined information sign indicating number, remove frame sequence sign indicating number and section sequence code.
For realizing method of work of the present invention, the present invention also introduces a kind of high-speed RFID read write line, consist predominantly of the RFID power supply and write transmitter, RFID reads receiver, microprocessor, it is characterized in that having a plurality of stand-alone antennas, a multiple-limb power splitter, a diplexer, an emission filter, a receiving filter, a mobile object detector, the input/output terminal of each stand-alone antenna is connected with each branch's input/output terminal of multiple-limb power splitter respectively, the terminal of closing of multiple-limb power splitter is connected with the road input/output terminal that closes of diplexer, the emission input end of diplexer is connected by emission filter and RFID power supply and the output terminal that writes transmitter, the reception output terminal of diplexer is connected with the input end that RFID reads receiver by receiving filter, mobile object detector information output terminal, RFID powers and writes transmitter work control end and is connected with one group of control input/output terminal of microprocessor respectively.
Principle of work of the present invention is: by adopting the electromagnetic method of supplying power to of continuous chain spatial diversity antennas synchronized transmissions, promptly formed the power supply emission covering of multiple spot to a bit, can effectively prolong between the induction of the RFID of high-speed mobile or wireless transmit service area and effective power-on time, adopt continuous chain spatial diversity antennas to receive and launch the transmission method of information code, promptly formed the transmitting-receiving transmission covering of multiple spot to a bit, can make the sufficient time realize read-write to high-speed mobile RFID, because in the wireless transmission of information code, be generally the minimizing bit error rate and adopt retransmission mechanism, and when receiving the information code of emission, the possibility that receives imperfect information code frame is arranged, the present invention inserts frame sequence sign indicating number and section sequence code according to the sequence code space-number of setting in the raw information sign indicating number frame of transmission, to the information code that receives according to the sequence code space-number of setting, frame sequence sign indicating number and section sequence code are recovered the raw information sign indicating number and are handled, promptly remove the duplicate message sign indicating number between frame sequence sign indicating number and the section sequence code, complete information sign indicating number between retention frame sequence code and the section sequence code, according to the sequence code space-number of setting, frame sequence sign indicating number and section sequence code series arrangement and combined information sign indicating number, remove frame sequence sign indicating number and section sequence code, thereby obtain raw information sign indicating number frame, in the raw information sign indicating number frame of transmission, insert frame sequence sign indicating number and section sequence code, promptly be used to help information code to give error correction and recover raw information sign indicating number frame to receiving, adopt the mobile object detection information to control the work method for opening and closing that RFID powers and writes transmitter, make rfid interrogator confirm to have moving body near the time open work again, when no moving body near the time close work, can reduce power consumption and electromagnetic pollution.
Description of drawings
Fig. 1 is the high-speed RFID read write line electricity principle pie graph of one embodiment of the invention.
Embodiment
Be example explanation embodiments of the invention below with the accompanying drawing.
Fig. 1 represents the high-speed RFID read write line electricity principle pie graph of one embodiment of the invention, wherein:
(1-1)～(1-n) be a plurality of stand-alone antennas, operating frequency of antenna is identical with the frequency of operation of RFID write device and reader; (2) be the multiple-limb power splitter, adopt conventional power splitter to constitute; (3) be diplexer, adopt conventional diplexer; (4) be emission filter; (5) be receiving filter; (6) be the mobile object detector, adopt pyroscan to constitute; (7) be the RFID write device; (8) be the RFID reader; (9) be microprocessor.
Dispose each functional module and device, join dependency module and device according to accompanying drawing and above-mentioned explanation, write software program and running parameter is set, can finish enforcement of the present invention for microprocessor.
The present invention adopts leaky cable and terminator as antenna system, and an end of leaky cable is connected with the road input/output terminal that closes of diplexer, and the other end of leaky cable is connected with terminator, makes that like this enforcement of the present invention is more convenient.
Introduction of the present invention a kind of is by RFID power supply and write transmitter, RFID and read reading/writing method and the high-speed RFID read write line to high-speed mobile RFID that receiver, microprocessor, multiple-limb power splitter, diplexer, antenna, mobile object detector, emission filter, receiving filter are realized, can satisfy demand to the correct read-write of high-speed mobile RFID, and have simple in structure, implement characteristics easily.
Claims (3)
1. reading/writing method to high-speed mobile RFID is characterized in that following method of work is arranged:
(1) adopts the electromagnetic method of supplying power to of continuous chain spatial diversity antennas synchronized transmissions;
(2) adopt continuous chain spatial diversity antennas to receive and launch the transmission method of information code;
(3) adopt the mobile object detection information to control the work method for opening and closing that RFID powers and writes transmitter;
(4) in the raw information sign indicating number frame of transmission, insert frame sequence sign indicating number and section sequence code according to the sequence code space-number of setting;
(5) information code that receives being recovered the raw information sign indicating number according to the sequence code space-number of setting, frame sequence sign indicating number and section sequence code handles, promptly remove the duplicate message sign indicating number between frame sequence sign indicating number and the section sequence code, complete information sign indicating number between retention frame sequence code and the section sequence code, according to the sequence code space-number of setting, frame sequence sign indicating number and section sequence code series arrangement and combined information sign indicating number, remove frame sequence sign indicating number and section sequence code.
2. high-speed RFID read write line, consist predominantly of the RFID power supply and write transmitter, RFID reads receiver, microprocessor, it is characterized in that having a plurality of stand-alone antennas, a multiple-limb power splitter, a diplexer, an emission filter, a receiving filter, a mobile object detector, the input/output terminal of each stand-alone antenna is connected with each branch's input/output terminal of multiple-limb power splitter respectively, the terminal of closing of multiple-limb power splitter is connected with the road input/output terminal that closes of diplexer, the emission input end of diplexer is connected by emission filter and RFID power supply and the output terminal that writes transmitter, the reception output terminal of diplexer is connected with the input end that RFID reads receiver by receiving filter, mobile object detector information output terminal, RFID powers and writes transmitter work control end and is connected with one group of control input/output terminal of microprocessor respectively.
3. high-speed RFID read write line as claimed in claim 2 is characterized in that having leaky cable and terminator, and an end of leaky cable is connected with the road input/output terminal that closes of diplexer, and the other end of leaky cable is connected with terminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102988224A CN101944186A (en) | 2010-10-08 | 2010-10-08 | Reading and writing method of high-speed moving RFID (Radio Frequency Identification Devices) and high-speed RFID reader-writer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102988224A CN101944186A (en) | 2010-10-08 | 2010-10-08 | Reading and writing method of high-speed moving RFID (Radio Frequency Identification Devices) and high-speed RFID reader-writer |
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| CN101944186A true CN101944186A (en) | 2011-01-12 |
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| CN2010102988224A Pending CN101944186A (en) | 2010-10-08 | 2010-10-08 | Reading and writing method of high-speed moving RFID (Radio Frequency Identification Devices) and high-speed RFID reader-writer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5525991A (en) * | 1992-06-25 | 1996-06-11 | Nippondenso Co., Ltd. | Mobile object identification system |
| CN1383621A (en) * | 2000-07-04 | 2002-12-04 | 克里蒂帕斯株式会社 | Passive transponder identification system and credit-card type transponder |
| CN2526466Y (en) * | 2002-03-08 | 2002-12-18 | 梁万斌 | Electronic controlling system for intelligent remote-anti-theft door |
| CN1755704A (en) * | 2004-09-30 | 2006-04-05 | 富士通株式会社 | Read/write device and rfid system |
| CN101512546A (en) * | 2006-09-01 | 2009-08-19 | 传感电子公司 | Radio frequency id doppler motion detector |
-
2010
- 2010-10-08 CN CN2010102988224A patent/CN101944186A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5525991A (en) * | 1992-06-25 | 1996-06-11 | Nippondenso Co., Ltd. | Mobile object identification system |
| CN1383621A (en) * | 2000-07-04 | 2002-12-04 | 克里蒂帕斯株式会社 | Passive transponder identification system and credit-card type transponder |
| CN2526466Y (en) * | 2002-03-08 | 2002-12-18 | 梁万斌 | Electronic controlling system for intelligent remote-anti-theft door |
| CN1755704A (en) * | 2004-09-30 | 2006-04-05 | 富士通株式会社 | Read/write device and rfid system |
| CN101512546A (en) * | 2006-09-01 | 2009-08-19 | 传感电子公司 | Radio frequency id doppler motion detector |
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Application publication date: 20110112 |