CN107194298A - A kind of RFID high frequencies read write line - Google Patents
A kind of RFID high frequencies read write line Download PDFInfo
- Publication number
- CN107194298A CN107194298A CN201710409128.7A CN201710409128A CN107194298A CN 107194298 A CN107194298 A CN 107194298A CN 201710409128 A CN201710409128 A CN 201710409128A CN 107194298 A CN107194298 A CN 107194298A
- Authority
- CN
- China
- Prior art keywords
- antenna
- receiving
- microstrip line
- aerial coil
- read write
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10158—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
- G06K7/10178—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field including auxiliary means for focusing, repeating or boosting the electromagnetic interrogation field
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The present invention discloses a kind of RFID high frequencies read write line, including shell, circuit main board, control communication module, RF receiving and transmission module and antenna；Communication module, RF receiving and transmission module and antenna order electrical connection are controlled, antenna includes aerial coil and semicircular magnet ring, and aerial coil is divided into the intensive two ends for being wrapped in semicircular magnet ring of two parts, and two parts aerial coil is connected by wire；Communication module is controlled to include 89C51 single-chip microcomputers, RS232 interfaces, USB interface and 5V dc source interfaces；RF receiving and transmission module includes oscillator, prime amplifier, power amplifier, microstrip line phase-shift network, amplitude shift keying modulator and the receiving demodulation circuit being connected in turn between microstrip line phase-shift network and 89C51 single-chip microcomputers and demodulation signal processing circuit, and microstrip line phase-shift network is connected with antenna.The present invention, which is used, realizes miniaturization, integration in discrete component, structure, easily install, the cost of RFID high frequency read write lines is greatly reduced on the basis of ensureing that RFID high frequency read write lines are stable and reliable for performance.
Description
Technical field
The present invention relates to RFID frequency read/writes field, and in particular to be a kind of RFID high frequencies read write line.
Background technology
RFID (Radio Frequency Identification) technology, also known as radio frequency identification, are a kind of communication
Technology, specific objective can be recognized by radio signals and related data is read and write, without between identifying system and specific objective
Set up mechanical or optical contact.Existing RFID frequency read/writes are generally divided into two kinds：One kind is fixed, and one kind is hand-held.
Fixed RFID frequency read/writes are complicated, volume is big, expensive, are mainly used in more remote swift electron label information
Read, handheld RFID frequency read/write collection applause circuit PDA, camera, GPRS module, bluetooth module etc., but it is expensive,
This two classes RFID frequency read/write is complicated and price.In some fields, such as taking care of books field, high-frequency RF ID electronics
Label is secured at because its volume is larger in book cover or back cover plane, vertical with spine plane.When a large amount of books successively
When being arranged on bookshelf, using existing high frequency RFID reader, its read-write antenna is hard or flexible slab coil antenna, is
Obtain preferable communication efficiency, need to by antenna insert books between or contact and inswept book page be written and read-i.e. guarantee antenna
Plate level it is parallel with books plane or into less angle.Such read-write mode, easily causes book damages, read-write effect
It is really undesirable, operate highly inconvenient.
To sum up, a kind of read-write preferable RFID high frequencies of effect simple in construction how to be designed for above the deficiencies in the prior art
One of read write line, the problem of becoming as those skilled in the art's urgent need to resolve.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of RFID high frequencies read write line.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of RFID high frequencies read write line, including shell, are arranged on the circuit main board in shell, are arranged on circuit main board simultaneously
And using the control communication module and RF receiving and transmission module of discrete component, and antenna；Control communication module, radio-frequency receiving-transmitting mould
Block and antenna order electrical connection, the antenna include aerial coil and semicircular magnet ring, and it is close that the aerial coil is divided into two parts
Collection is wrapped in the two ends of semicircular magnet ring, and two parts aerial coil is connected by wire；The control communication module includes 89C51
Single-chip microcomputer, the RS232 interfaces being connected with 89C51 single-chip microcomputers, USB interface and 5V dc source interfaces；The RF receiving and transmission module
Including the oscillator being sequentially connected, prime amplifier, power amplifier, microstrip line phase-shift network, connection 89C51 single-chip microcomputers with putting in advance
The amplitude shift keying modulator of big device, and the reception demodulation being connected in turn between microstrip line phase-shift network and 89C51 single-chip microcomputers
Circuit and demodulation signal processing circuit, the microstrip line phase-shift network are also connected with antenna.
Compared with prior art, the invention has the advantages that：
The present invention, which is used, realizes miniaturization, integration in discrete component, structure, easily install, ensureing RFID high frequencies
The cost of RFID high frequency read write lines is greatly reduced on the basis of read write line is stable and reliable for performance.The antenna of the present invention can be in electronics
Label side is written and read, when electronic tag is attached at page, this reading and writing device antenna can from books side-i.e. parallel to
The plane of books is contactless to be written and read to information.The present invention has good communication efficiency, is not easy to cause books again
Damage, and it is easy to operate.
Brief description of the drawings
Fig. 1 is structured flowchart of the invention.
Fig. 2 is function structure block diagram of the invention.
Fig. 3 is Principle of Antenna schematic diagram of the invention.
Wherein, reference is corresponding entitled：
1- aerial coils, 2- magnet rings, 3- antenna ports
Embodiment
The invention will be further described with embodiment for explanation below in conjunction with the accompanying drawings, and embodiments of the present invention are included but not
It is only limitted to following examples.
As shown in Figures 1 to 3, a kind of RFID high frequencies read write line, including shell, is arranged on the circuit main board in shell, sets
On circuit main board and using the control communication module and RF receiving and transmission module of discrete component, and antenna；Control communication
Module, RF receiving and transmission module and antenna order electrical connection, the antenna include aerial coil 1 and semicircular magnet ring 2, the antenna
1 point of coil is the intensive two ends for being wrapped in semicircular magnet ring 2 of two parts, and two parts aerial coil 1 is connected by wire.
RS232 interfaces, USB interface that the control communication module includes 89C51 single-chip microcomputers, is connected with 89C51 single-chip microcomputers
With 5V dc source interfaces.
The RF receiving and transmission module includes oscillator, prime amplifier, power amplifier, the microstrip line phase shift net being sequentially connected
The amplitude shift keying modulator of network, connection 89C51 single-chip microcomputers and prime amplifier, is connected to microstrip line phase-shift network and 89C51 in turn
Receiving demodulation circuit and demodulation signal processing circuit between single-chip microcomputer, the microstrip line phase-shift network also pass through antenna with antenna
Port 3 is connected.
The Principle of Antenna of the present invention：When aerial coil have electric current by when, the magnetic field magnetic line distribution that electric current is produced is such as Fig. 3
In dotted line shown in, i.e., what the magnetic line of force was intensive is distributed in the space at magnet ring two ends, when reading and writing device antenna be positioned over page patch
When the setting for having electronic tag is arranged in before the books on bookshelf, the magnetic line of force of reading and writing device antenna coil, which is largely passed through, is attached to books
Electronic label antenna coil on medial plane, now, between reading and writing device antenna and electronic label antenna couples close, communication efficiency
Splendid, reading/writing distance is farther out.
The present invention, which is used, realizes miniaturization, integration in discrete component, structure, easily install, ensureing RFID high frequencies
The cost of RFID high frequency read write lines is greatly reduced on the basis of read write line is stable and reliable for performance.The antenna of the present invention can be in electronics
Label side is written and read, and the present invention is simple in construction, with good communication efficiency, is not easy that books are caused to damage again, and
It is easy to operate, with good promotional value.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit the protection model of the present invention
Enclose, it is all the present invention body design thought and mentally make have no the change of essential meaning or polishing, what it was solved
Technical problem is still consistent with the present invention, should be included within protection scope of the present invention.
Claims (1)
1. a kind of RFID high frequencies read write line, it is characterised in that including shell, be arranged on the circuit main board in shell, be arranged on electricity
On the mainboard of road and using the control communication module and RF receiving and transmission module of discrete component, and antenna；Control communication module,
RF receiving and transmission module and antenna order electrical connection, the antenna include aerial coil and semicircular magnet ring, the aerial coil point
For the intensive two ends for being wrapped in semicircular magnet ring of two parts, two parts aerial coil is connected by wire；The control communication mould
Block includes 89C51 single-chip microcomputers, the RS232 interfaces being connected with 89C51 single-chip microcomputers, USB interface and 5V dc source interfaces；It is described to penetrate
Frequency transceiver module includes oscillator, prime amplifier, power amplifier, the microstrip line phase-shift network being sequentially connected, and connection 89C51 is mono-
The amplitude shift keying modulator of piece machine and prime amplifier, and be connected in turn between microstrip line phase-shift network and 89C51 single-chip microcomputers
Receiving demodulation circuit and demodulation signal processing circuit, the microstrip line phase-shift network is also connected with antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409128.7A CN107194298A (en) | 2017-06-02 | 2017-06-02 | A kind of RFID high frequencies read write line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409128.7A CN107194298A (en) | 2017-06-02 | 2017-06-02 | A kind of RFID high frequencies read write line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107194298A true CN107194298A (en) | 2017-09-22 |
Family
ID=59876369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409128.7A Pending CN107194298A (en) | 2017-06-02 | 2017-06-02 | A kind of RFID high frequencies read write line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107194298A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238076Y (en) * | 2008-07-03 | 2009-05-13 | 惠州市恒睿电子科技有限公司 | High-frequency radio frequency recognition reader-writer antenna |
| CN201716739U (en) * | 2010-07-21 | 2011-01-19 | 深圳市远望谷信息技术股份有限公司 | Small ultra-high frequency integral RFID reader |
-
2017
- 2017-06-02 CN CN201710409128.7A patent/CN107194298A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238076Y (en) * | 2008-07-03 | 2009-05-13 | 惠州市恒睿电子科技有限公司 | High-frequency radio frequency recognition reader-writer antenna |
| CN201716739U (en) * | 2010-07-21 | 2011-01-19 | 深圳市远望谷信息技术股份有限公司 | Small ultra-high frequency integral RFID reader |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170922 |
|
| WD01 | Invention patent application deemed withdrawn after publication |