CN106921019A - A kind of RFID label tag communication system and communication means - Google Patents
A kind of RFID label tag communication system and communication means Download PDFInfo
- Publication number
- CN106921019A CN106921019A CN201610104289.0A CN201610104289A CN106921019A CN 106921019 A CN106921019 A CN 106921019A CN 201610104289 A CN201610104289 A CN 201610104289A CN 106921019 A CN106921019 A CN 106921019A
- Authority
- CN
- China
- Prior art keywords
- rfid label
- frequency
- label tag
- communication system
- impedance
- 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
Links
- 238000004891 communication Methods 0.000 title claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Abstract
The present invention relates to RFID label tag, a kind of RFID label tag communication system is disclosed, the communication system includes RFID label chip (1) and antenna (2), and the communication system also includes：Carrier；Impedance-matching device (3), is installed on the carrier, is connected with the RFID label chip (1), for carrying out impedance conversion；And frequency-selector (4), it is installed on the carrier, between the antenna (2) and the impedance-matching device (3), for carrying out frequency electing and passing.The present invention can substantially suppress the interference of other frequencies beyond RFID label tag communication standard frequency, RFID label tag is worked in the presence of high-power out-of-band interference signal.
Description
Technical field
The present invention relates to RFID label tag, in particular it relates to a kind of RFID label tag communication system and one kind
RFID label tag communication means.
Background technology
The composition structure of current general passive RFID tags is as follows：Two of passive RFID tags draw
Pin be directly connected with the two ends of an antenna or passive RFID tags two pins and one the two of antenna
Individual part is connected, and using antenna and the resonance of passive RFID tag chip, carries out radio communication.Should
Antenna usual broader bandwidth in far field electromagnetic wave communication, the rejection ability to out of band signal is very weak, often
Disturbed by the frequency close with RFID label tag communication standard frequency, or even influence RFID label tag
Normal work.
The content of the invention
It is an object of the invention to provide a kind of RFID label tag communication system and a kind of RFID label tag communication party
Method, the RFID label tag communication system and RFID label tag communication means can substantially suppress RFID label tag
The interference of other frequencies beyond communication standard frequency, allows RFID label tag in high-power out-of-band interference
Worked in the presence of signal.
To achieve these goals, the present invention provides a kind of RFID label tag communication system, the communication system
Including RFID label chip and antenna, the communication system also includes：Carrier；Impedance-matching device, peace
Loaded on the carrier, it is connected with the RFID label chip, for carrying out impedance conversion；And choosing
Frequency device, is installed on the carrier, between the antenna and the impedance-matching device, be used for into
Line frequency is gated.
Also a kind of RFID label tag communication means of the present invention, the communication means includes：Increase RFID label tag
The output impedance of chip；Selection RFID communication standard frequency enters system, isolates other frequencies.
By above-mentioned technical proposal, the RFID label tag communication system provided using the present invention and RFID are marked
Communication means is signed, RFID label chip, antenna, impedance-matching device and frequency-selector are installed on carrier,
Increase the output impedance of RFID label chip using impedance-matching device, enable its impedance and frequency-selector
Match somebody with somebody, so as to recycle frequency-selector gated RF ID communication standard frequencies to isolate other frequencies, the present invention can be with
Substantially suppress the interference of other frequencies beyond RFID label tag communication standard frequency, make the RFID label tag can
Worked with the presence of high-power out-of-band interference signal.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with
Following specific embodiment is used to explain the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is the schematic diagram that passive RFID tags are connected with the two ends of an antenna in the prior art；
Fig. 2 is the signal that passive RFID tags are connected with the two of antenna part in the prior art
Figure；
Fig. 3 is the structural representation of the RFID label tag communication system that the present invention is provided；
Fig. 4 is the structural representation of the impedance-matching device that the present invention is provided；And
Fig. 5 is the flow chart of the RFID label tag communication means that the present invention is provided.
Description of reference numerals
The antenna of 1 RFID label chip 2
The frequency-selector of 3 impedance-matching device 4
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Specific embodiment described herein is merely to illustrate and explain the present invention, and is not limited to this hair
It is bright.
As depicted in figs. 1 and 2, Fig. 1 is existing to the composition structure of current general passive RFID tags
The schematic diagram that RFID label chip 1 is connected with the two ends of an antenna 2 in technology, Fig. 2 is existing skill
The schematic diagram that RFID label chip 1 is connected with the two of antenna 2 part in art.In general,
The antenna of this kind of simple structure of passive RFID tags usual broader bandwidth in far field electromagnetic wave communication is right
The rejection ability of out of band signal is very weak, such as Fig. 1 and Fig. 2 both RFID label chips 1 directly with day
The form of the connection of line 2 is often disturbed by the frequency close with RFID label tag communication standard frequency.
Compared to prior art, the RFID label tag communication system that the present invention is provided can substantially suppress RFID
The interference of other frequencies beyond label communication standard frequency, allows RFID label tag outside high-power band
Worked in the presence of interference signal.
Fig. 3 is the structural representation of the RFID label tag communication system that the present invention is provided.As shown in figure 3,
The present invention provides a kind of RFID label tag communication system, and the communication system includes the He of RFID label chip 1
Antenna 2, the communication system also includes：Carrier；Impedance-matching device 3, is installed on the carrier,
It is connected with the RFID label chip 1, for carrying out impedance conversion；And frequency-selector 4, it is installed on
On the carrier, between the antenna 2 and the impedance-matching device 3, it is used to be selected into line frequency
It is logical.The carrier is made up of FR4 or flexible PCB material.
RFID label chip of the invention 1 can common meet international ISO, EPC standard or symbol
The passive RFID tag chip (without special adaptations or customization) of CNS is closed, carrier preferably prints
Printed circuit board, material includes but is not limited to FR4 (glass-epoxy copper-clad plate flame resistant material grades
Code name) and flexible PCB material.Frequency-selector 4 is 50 ohm of port passive devices of standard.Frequency-selecting
Device can selectively allow CF in transmission line to pass through, and be effectively isolated the frequency beyond the frequency,
So as to obtain an electric signal for CF, or eliminate the electric signal after a CF.
RFID label chip 1, antenna 2, impedance-matching device 3 and frequency-selector 4 are installed on carrier,
Because the impedance of RFID label chip 1 and frequency-selector 4 are applicable impedance contrast away from excessive (differing hundreds of times), because
This present invention increases the output impedance of RFID label chip 1 using impedance-matching device 3, makes its impedance
Can be matched with frequency-selector 4, so that its beyond recycling the isolation RFID communication standard frequency of frequency-selector 4
Its frequency, it is ensured that suppress the interference of other frequencies beyond RFID label tag communication standard frequency.
Fig. 4 is the structural representation of the impedance-matching device that the present invention is provided.As shown in figure 4, the resistance
Anti- coalignment 3 includes：Inductance, between the RFID label chip 1 and the frequency-selector 4；
First electric capacity, one end is connected between the RFID label chip 1 and the inductance, other end ground connection；
Second electric capacity, one end is connected between the inductance and the frequency-selector 4, other end ground connection.The impedance
Coalignment 3 can also be conventional impedance matching box, it is possible to achieve change resistance (lumped-circuit
Matching function).
Fig. 5 is the flow chart of the RFID label tag communication means that the present invention is provided.As shown in figure 5, a kind of
RFID label tag communication means, the communication means includes：Increase the output impedance of RFID label chip；
And other frequencies beyond isolation RFID communication standard frequency.
Increase the output impedance of RFID label chip 1 first, its impedance is matched with frequency-selector 4,
Gated RF ID communication standard frequencies isolate other frequencies again, it is ensured that suppress RFID label tag communication standard frequently
The interference of other frequencies beyond rate.
By above-mentioned technical proposal, the RFID label tag communication system provided using the present invention and RFID are marked
Communication means is signed, RFID label chip, antenna, impedance-matching device and frequency-selector are installed on carrier,
Increase the output impedance of RFID label chip using impedance-matching device, enable its impedance and frequency-selector
Match somebody with somebody, so that other frequencies beyond recycling frequency-selector to isolate RFID communication standard frequency, the present invention can
Substantially to suppress the interference of other frequencies beyond RFID label tag communication standard frequency, make RFID label tag
Can be worked in the presence of high-power out-of-band interference signal.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited
Detail in above-mentioned implementation method, in range of the technology design of the invention, can be to the present invention
Technical scheme carry out various simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention is no longer separately illustrated to various possible combinations.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as its
Without prejudice to thought of the invention, it should equally be considered as content disclosed in this invention.
Claims (4)
1. a kind of RFID label tag communication system, the communication system include RFID label chip (1) and
Antenna (2), it is characterised in that the communication system also includes：
Carrier；
Impedance-matching device (3), is installed on the carrier, with the RFID label chip (1)
Connection, for carrying out impedance conversion；And
Frequency-selector (4), is installed on the carrier, positioned at the antenna (2) and the impedance matching
Between device (3), for carrying out frequency electing and passing.
2. RFID label tag communication system according to claim 1, it is characterised in that the load
Body is made up of FR4 or flexible PCB material.
3. RFID label tag communication system according to claim 1, it is characterised in that the resistance
Anti- coalignment includes：
Inductance, between the RFID label chip (1) and the frequency-selector (4)；
First electric capacity, one end is connected between the RFID label chip (1) and the inductance, separately
One end is grounded；
Second electric capacity, one end is connected between the inductance and the frequency-selector (4), other end ground connection.
4. a kind of RFID label tag communication means, it is characterised in that the communication means includes：
Increase the output impedance of RFID label chip；And
Selection RFID communication standard frequency enters system, isolates other frequencies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015110009613 | 2015-12-28 | ||
| CN201511000961 | 2015-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106921019A true CN106921019A (en) | 2017-07-04 |
Family
ID=56179903
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610104289.0A Pending CN106921019A (en) | 2015-12-28 | 2016-02-25 | A kind of RFID label tag communication system and communication means |
| CN201620142558.8U Active CN205355235U (en) | 2015-12-28 | 2016-02-25 | RFID label communication system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620142558.8U Active CN205355235U (en) | 2015-12-28 | 2016-02-25 | RFID label communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106921019A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110858271A (en) * | 2018-08-26 | 2020-03-03 | 吴成彬 | Electronic passive tag identification system and method based on frequency selection characteristic |
| CN110858271B (en) * | 2018-08-26 | 2024-05-14 | 吴成彬 | Electronic passive tag identification system and method based on frequency selection characteristics |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921019A (en) * | 2015-12-28 | 2017-07-04 | 航天信息股份有限公司 | A kind of RFID label tag communication system and communication means |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2517042Y (en) * | 2001-11-16 | 2002-10-16 | 上海致达科技(集团)股份有限公司智能技术分公司 | Mould device of reader |
| CN102169554A (en) * | 2011-03-30 | 2011-08-31 | 陈立强 | Multi-mode passive tag |
| CN102194143A (en) * | 2010-03-11 | 2011-09-21 | 株式会社日立制作所 | RFID tag and its manufacture method |
| KR20120119631A (en) * | 2011-04-22 | 2012-10-31 | (주) 다뉴 | Direct detection method for rfid cards |
| CN104318193A (en) * | 2014-11-14 | 2015-01-28 | 睿芯(大连)股份有限公司 | RFID frequency conversion card reader and frequency sweeping and label reading method thereof |
| CN105071055A (en) * | 2015-07-28 | 2015-11-18 | 福建联迪商用设备有限公司 | High-frequency interference preventive RF antenna impedance match circuit and design method thereof |
| CN205355235U (en) * | 2015-12-28 | 2016-06-29 | 航天信息股份有限公司 | RFID label communication system |
-
2016
- 2016-02-25 CN CN201610104289.0A patent/CN106921019A/en active Pending
- 2016-02-25 CN CN201620142558.8U patent/CN205355235U/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2517042Y (en) * | 2001-11-16 | 2002-10-16 | 上海致达科技(集团)股份有限公司智能技术分公司 | Mould device of reader |
| CN102194143A (en) * | 2010-03-11 | 2011-09-21 | 株式会社日立制作所 | RFID tag and its manufacture method |
| CN102169554A (en) * | 2011-03-30 | 2011-08-31 | 陈立强 | Multi-mode passive tag |
| KR20120119631A (en) * | 2011-04-22 | 2012-10-31 | (주) 다뉴 | Direct detection method for rfid cards |
| CN104318193A (en) * | 2014-11-14 | 2015-01-28 | 睿芯(大连)股份有限公司 | RFID frequency conversion card reader and frequency sweeping and label reading method thereof |
| CN105071055A (en) * | 2015-07-28 | 2015-11-18 | 福建联迪商用设备有限公司 | High-frequency interference preventive RF antenna impedance match circuit and design method thereof |
| CN205355235U (en) * | 2015-12-28 | 2016-06-29 | 航天信息股份有限公司 | RFID label communication system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110858271A (en) * | 2018-08-26 | 2020-03-03 | 吴成彬 | Electronic passive tag identification system and method based on frequency selection characteristic |
| CN110858271B (en) * | 2018-08-26 | 2024-05-14 | 吴成彬 | Electronic passive tag identification system and method based on frequency selection characteristics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205355235U (en) | 2016-06-29 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |
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| RJ01 | Rejection of invention patent application after publication |