CN110490016A - A kind of radio frequency identification system - Google Patents
A kind of radio frequency identification system Download PDFInfo
- Publication number
- CN110490016A CN110490016A CN201910684888.8A CN201910684888A CN110490016A CN 110490016 A CN110490016 A CN 110490016A CN 201910684888 A CN201910684888 A CN 201910684888A CN 110490016 A CN110490016 A CN 110490016A
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- frequency identification
- radio
- signal
- writer
- electronic tag
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- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The present invention discloses a kind of radio frequency identification system, comprising: electronic tag includes a chip and a first antenna, and the external first antenna of chip, chip is for storing product information；Radio-frequency identification reader/writer includes one second antenna, and radio-frequency identification reader/writer emits one first signal to electronic tag by the second antenna to provide working power to chip, and radio-frequency identification reader/writer is used to read the product information stored in electronic tag；Host connects radio-frequency identification reader/writer, and establishes two-way communication with radio-frequency identification reader/writer；Carrier source includes a third antenna, and carrier source emits a second signal to electronic tag by third antenna to provide additional energy to chip.The utility model has the advantages that both can guarantee the communication distance between radio-frequency identification reader/writer and electronic tag, the stability of radio-frequency recognition system and the recognition speed of radio-frequency identification reader/writer can be also improved.
Description
Technical field
The present invention relates to art communication systems field more particularly to a kind of radio frequency identification systems.
Background technique
With microelectronics, the development of computer and network technologies, RFID (Radio Frequency
Identification, radio frequency identification) technology application range and depth all developed by leaps and bounds.RFID system it is main
Equipment includes radio-frequency identification reader/writer, electronic tag and host, and radio-frequency identification reader/writer can identify electronics by radio signals
Label simultaneously reads and writes the data stored in electronic tag, and establishes mechanical or optics between radio-frequency identification reader/writer and electronic tag and connect
Touching is suitable for short distance identification communication, and the operation strategies of RFID system are extensive, such as library, access control system, industry manufacture
Deng.
A kind of existing RFID system using passive label, due to not having battery inside passive label, work capacity is equal
The signal (electromagnetic field) of radio-frequency identification reader/writer transmitting is needed to provide, if distance is got between radio-frequency identification reader/writer and passive label
Far, the energy that passive label is obtained from radio-frequency identification reader/writer is weaker, will lead to if the energy that passive label obtains is too weak
Chip in passive label can not work normally or passive label is transmitted back to the signal of reader and weaker is unfavorable for reader solution
It adjusts, further influences the stability of RFID system.Therefore, now there is an urgent need to a kind of higher radio frequency identification systems of stability
System, both can guarantee the communication distance between reader and passive label, and also can be further improved the stability of RFID system.
Summary of the invention
For the above-mentioned problems in the prior art, a kind of radio frequency identification system is now provided.
Specific technical solution is as follows:
The present invention includes a kind of radio frequency identification system, comprising:
One electronic tag, the electronic tag include a chip and a first antenna, external described first day of the chip
Line, the chip is for storing product information；
One radio-frequency identification reader/writer, the radio-frequency identification reader/writer include one second antenna, the radio-frequency identification reader/writer
Emit one first signal to the electronic tag by second antenna to give the chip to provide working power, the radio frequency
Identification reader is used to read the product information stored in the electronic tag；
One host, the host connect the radio-frequency identification reader/writer, and establish with the radio-frequency identification reader/writer two-way
Communication；
One carrier source, the carrier source include a third antenna, and the carrier source passes through the third antenna to the electricity
Subtab emits a second signal to provide additional energy to the chip；
The electronic tag receives first signal and the second signal, the electronics mark by the first antenna
First signal and the second signal are converted to induced current by label, after the electronic tag boosts the induced current
It is supplied to the chip, the chip emits the product information of storage to the radio frequency identification by the first antenna
Reader, the radio-frequency identification reader/writer are transmitted to the host after handling the product information.
Preferably, the chip includes:
One RF front-end circuit, the RF front-end circuit is for inputting the induced current, and by the induced current
Be converted to digital signal；
One logic control circuit, the logic control circuit and the RF front-end circuit two-way communication link, it is described to penetrate
Frequency front-end circuit is by the digital data transmission to the logic control circuit；
One memory, the memory and the logic control circuit two-way communication link, the logic control circuit pair
The digital signal is transferred to the memory and deposits after the memory receives the digital signal by described after being handled
The product information in reservoir is transmitted to the RF front-end circuit by the logic control circuit, then passes through described the
One antenna emits to the radio-frequency identification reader/writer.
Preferably, the radio-frequency identification reader/writer further include:
One control unit, described control unit and a communication unit two-way communication link, described control unit pass through described
Communication interface and the host establish two-way communication；
One radio frequency unit, the radio frequency unit and described control unit two-way communication link, the radio frequency unit will be described
The current signal of control unit output is converted into the first signal and is sent to the electronic tag, or receives the electronic tag
The product information of transmitting is simultaneously translated into current signal and is transferred to described control unit.
Preferably, the electronic tag is passive label.
Preferably, first signal and the second signal include carrier wave or modulation carrier wave.
Preferably, the communication unit includes that RS-232 communication interface or RS-485 communication interface or Bluetooth communication connect
Mouth or GPRS communication interface or USB communication interface.
Preferably, the frequency of the second signal is identical as the frequency of first signal.
The beneficial effect of technical solution of the present invention is: providing a kind of radio frequency identification system, both can guarantee that radio frequency is known
Other communication distance between reader and electronic tag, the stability and radio frequency that also can be further improved radio-frequency recognition system are known
The recognition speed of other reader.
Detailed description of the invention
With reference to appended attached drawing, more fully to describe the embodiment of the present invention.However, appended attached drawing be merely to illustrate and
It illustrates, and is not meant to limit the scope of the invention.
Fig. 1 is the result schematic diagram of the radio frequency identification system of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
The present invention includes a kind of radio frequency identification system, as shown in Figure 1, comprising:
One electronic tag 1, electronic tag 1 include a chip 10 and a first antenna 11, the external first antenna 11 of chip 10,
Chip 10 is for storing product information；
One radio-frequency identification reader/writer 2, radio-frequency identification reader/writer 2 include one second antenna 21, and radio-frequency identification reader/writer 2 passes through
Second antenna 21 emits one first signal to electronic tag 1 to provide working power to chip 10, and radio-frequency identification reader/writer 2 is used for
Read the product information stored in electronic tag 1；
One host 3,3 wired connection or wireless connection radio-frequency identification reader/writer 2 of host, and built with radio-frequency identification reader/writer 2
Vertical two-way communication；
One carrier source 4, carrier source 4 include a third antenna 41, and carrier source 4 is sent out by third antenna 41 to electronic tag 1
A second signal is penetrated to provide additional energy to chip 10；
Electronic tag 1 receives the first signal and second signal by first antenna 11, and electronic tag 1 is by the first signal and the
Binary signal is converted to induced current, and electronic tag 1 is supplied to chip 10 after induced current is boosted, and chip 10 is by the product of storage
Information is emitted by first antenna 11 to radio-frequency identification reader/writer 2, and radio-frequency identification reader/writer 2 passes after handling product information
Transport to host 3.
Specifically, as shown in Figure 1, an independent carrier source 4, carrier source 4 and electronic tag are arranged around electronic tag 1
A pre-determined distance is equipped between 1, the length of pre-determined distance and the power of chip 10 match.The second signal that carrier source 4 emits
Frequency can be identical with the frequency of the first signal, can also be different, electronic tag 1 can be used first antenna 11 receive carrier wave
In addition the second signal that source 4 emits can also increase the second signal that antenna receives carrier source 4, in addition, carrier source 4 is emitted
Second signal include carrier wave and modulation carrier wave.
Further, the first signal that electronic tag 1 both can receive the transmitting of radio-frequency identification reader/writer 2 obtains work energy
Amount can also obtain extra work energy by carrier source 4, not shorten between radio-frequency identification reader/writer 2 and electronic tag 1
Communication distance in the case where, further improve the stability of radio frequency identification system.
In a kind of preferably embodiment, as shown in Figure 1, chip 10 includes:
One RF front-end circuit 101, RF front-end circuit 101 are converted to induced current for inputting induced current
Digital signal；
One logic control circuit 102, logic control circuit 102 and 101 two-way communication link of RF front-end circuit, before radio frequency
Terminal circuit 101 is by digital data transmission to logic control circuit 102；
One memory 103, memory 103 and 102 two-way communication link of logic control circuit, logic control circuit 102 are right
Digital signal is transferred to memory 103 after being handled, after memory 103 receives digital signal, by the product in memory 103
Information is transmitted to RF front-end circuit 101 by logic control circuit 102, then passes through the transmitting of first antenna 11 to radio frequency identification
Reader 2.
Specifically, as shown in Figure 1, radio frequency identification is read firstly, host 3 sends a control instruction to radio-frequency identification reader/writer 2
Write device 2 receive control instruction and to control instruction after, by the second antenna 21 emit one first signal (the first signal be scanning letter
Number) electron label 1, first antenna 11, which receives the first signal and the first signal is converted to induced current, is transferred to radio-frequency front-end
Circuit 101, induced current is converted to digital signal by RF front-end circuit 101, then passes through 102 pairs of number letters of logic control circuit
It is transferred to memory 103 after number being handled, memory 103 is made accordingly according to the digital signal for being loaded with scanning information of input
Reply, the product information of storage is sent to RF front-end circuit 101 by logic control circuit 102 by memory 103, then is led to
It crosses first antenna 11 and feeds back to radio-frequency identification reader/writer 2, radio-frequency identification reader/writer 2 is transferred to master after handling product information
Machine 3.
In a kind of preferably embodiment, radio-frequency identification reader/writer 2 further include:
One control unit 22,23 two-way communication link of control unit 22 and a communication unit, control unit 22 pass through communication
Interface 23 and host 3 establish two-way communication；
One radio frequency unit 24, radio frequency unit 24 and 22 two-way communication link of control unit, radio frequency unit 24 is by control unit
The current signal of 22 outputs is converted into the first signal and is sent to electronic tag 1, or receives the product letter that electronic tag 1 emits
It ceases and converts current signal for product information and be transferred to control unit 22；
Communication unit 23 includes RS-232 communication interface or RS-485 communication interface or bluetooth communication interface or GPRS logical
Believe interface or USB communication interface.
Specifically, different communication interfaces corresponds to different applications, for example, USB communication interface is suitble to office to use；RS-
232 communication interfaces are suitble to use in the equipment such as industrial automation equipment, the self-help borrowing and returning machine of short distance；RS-485 communication connects
Mouth is suitble to remote bus mode (farthest 2000 meters), is generally used for industrial automation equipment；Bluetooth communication interface is suitble to
Be inconvenient to apply in the short range transmission data occasion being routed, such as can be with the UR6258 of blue tooth interface to keep away in fork truck repacking
Exempt to be routed；GPRS communication interface is suitble to remote wireless data transmission (on condition that the signal that must have mobile network).
The beneficial effect of technical solution of the present invention is: providing a kind of radio frequency identification system, both can guarantee that radio frequency is known
Other communication distance between reader and electronic tag, the stability and radio frequency that also can be further improved radio-frequency recognition system are known
The recognition speed of other reader.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (7)
1. a kind of radio frequency identification system characterized by comprising
One electronic tag, the electronic tag include a chip and a first antenna, the external first antenna of chip, institute
Chip is stated for storing product information；
One radio-frequency identification reader/writer, the radio-frequency identification reader/writer include one second antenna, and the radio-frequency identification reader/writer passes through
Second antenna emits one first signal to the electronic tag to provide working power, the radio frequency identification to the chip
Reader is used to read the product information stored in the electronic tag；
One host, the host connects the radio-frequency identification reader/writer, and establishes two-way communication with the radio-frequency identification reader/writer；
One carrier source, the carrier source include a third antenna, and the carrier source passes through the third antenna to the electronics mark
It signs and issues and penetrates a second signal to provide additional energy to the chip；
The electronic tag receives first signal and the second signal by the first antenna, and the electronic tag will
First signal and the second signal are converted to induced current, and the electronic tag provides after the induced current is boosted
To the chip, the chip emits the product information of storage to the radio frequency identification read-write by the first antenna
Device, the radio-frequency identification reader/writer are transmitted to the host after handling the product information.
2. radio frequency identification system according to claim 1, which is characterized in that the chip includes:
One RF front-end circuit, the RF front-end circuit convert the induced current for inputting the induced current
For digital signal；
One logic control circuit, the logic control circuit and the RF front-end circuit two-way communication link, before the radio frequency
Terminal circuit is by the digital data transmission to the logic control circuit；
One memory, the memory and the logic control circuit two-way communication link, the logic control circuit is to described
Digital signal is transferred to the memory after being handled, after the memory receives the digital signal, by the memory
The interior product information is transmitted to the RF front-end circuit by the logic control circuit, then passes through described first day
Line emits to the radio-frequency identification reader/writer.
3. radio frequency identification system according to claim 1, which is characterized in that the radio-frequency identification reader/writer also wraps
It includes:
One control unit, described control unit and a communication unit two-way communication link, described control unit pass through the communication
Interface and the host establish two-way communication；
One radio frequency unit, the radio frequency unit and described control unit two-way communication link, the radio frequency unit is by the control
The current signal of unit output is converted into the first signal and is sent to the electronic tag, or receives the electronic tag transmitting
The product information and be translated into current signal and be transferred to described control unit.
4. radio frequency identification system according to claim 1, which is characterized in that the electronic tag is passive label.
5. radio frequency identification system according to claim 1, which is characterized in that first signal and second letter
It number include carrier wave or modulation carrier wave.
6. radio frequency identification system according to claim 3, which is characterized in that the communication unit includes RS-232 logical
Believe interface or RS-485 communication interface or bluetooth communication interface or GPRS communication interface or USB communication interface.
7. radio frequency identification system according to claim 1, which is characterized in that the frequency of the second signal with it is described
The frequency of first signal is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684888.8A CN110490016B (en) | 2019-07-26 | 2019-07-26 | Wireless radio frequency identification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684888.8A CN110490016B (en) | 2019-07-26 | 2019-07-26 | Wireless radio frequency identification system |
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| CN110490016A true CN110490016A (en) | 2019-11-22 |
| CN110490016B CN110490016B (en) | 2023-06-23 |
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| CN201910684888.8A Active CN110490016B (en) | 2019-07-26 | 2019-07-26 | Wireless radio frequency identification system |
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Cited By (3)
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| CN112163663A (en) * | 2020-10-23 | 2021-01-01 | 北京爱笔科技有限公司 | RFID tag, product with state switching function and related monitoring method |
| CN112668348A (en) * | 2021-01-05 | 2021-04-16 | 广东佳居乐家居科技有限公司 | Wireless radio frequency identification system for intelligent wardrobe |
| CN114528958A (en) * | 2022-02-18 | 2022-05-24 | 北京瑞尔世维医学研究有限公司 | Non-contact passive digital secondary collimator coding and identifying system |
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| CN110490016B (en) | 2023-06-23 |
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