CN110490016B - Wireless radio frequency identification system - Google Patents
Wireless radio frequency identification system Download PDFInfo
- Publication number
- CN110490016B CN110490016B CN201910684888.8A CN201910684888A CN110490016B CN 110490016 B CN110490016 B CN 110490016B CN 201910684888 A CN201910684888 A CN 201910684888A CN 110490016 B CN110490016 B CN 110490016B
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- frequency identification
- signal
- antenna
- electronic tag
- 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.)
- Active
Links
- 230000006854 communication Effects 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 41
- 230000007175 bidirectional communication Effects 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- 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 provisions 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Toxicology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (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 invention discloses a wireless radio frequency identification system, comprising: the electronic tag comprises a chip and a first antenna, wherein the chip is externally connected with the first antenna and is used for storing product information; the radio frequency identification reader comprises a second antenna, the radio frequency identification reader transmits a first signal to the electronic tag through the second antenna so as to provide a working power supply for the chip, and the radio frequency identification reader is used for reading product information stored in the electronic tag; the host is connected with the radio frequency identification reader-writer and establishes two-way communication with the radio frequency identification reader-writer; the carrier source includes a third antenna, and the carrier source transmits a second signal to the electronic tag through the third antenna to provide additional energy to the chip. The beneficial effects are that: the communication distance between the radio frequency identification reader-writer and the electronic tag can be ensured, and the stability of the radio frequency identification system and the identification speed of the radio frequency identification reader-writer can be improved.
Description
Technical Field
The invention relates to the technical field of communication systems, in particular to a wireless radio frequency identification system.
Background
With the development of microelectronics, computers and network technologies, the application range and depth of RFID (Radio Frequency Identification ) technology have been rapidly developed. The main equipment of the RFID system comprises a radio frequency identification reader-writer, an electronic tag and a host, wherein the radio frequency identification reader-writer can identify the electronic tag through radio signals and read and write data stored in the electronic tag, and mechanical or optical contact is established between the radio frequency identification reader-writer and the electronic tag, so that the RFID system is suitable for short-distance identification communication and has wide application range, such as libraries, access control systems, industrial manufacturing and the like.
The conventional RFID system using the passive tag has the defects that the battery is not arranged in the passive tag, the working energy of the system is provided by a signal (electromagnetic field) emitted by the radio frequency identification reader-writer, if the distance between the radio frequency identification reader-writer and the passive tag is longer, the energy obtained by the passive tag from the radio frequency identification reader-writer is weaker, if the energy obtained by the passive tag is weaker, a chip in the passive tag cannot work normally, or the signal emitted by the passive tag back to the reader-writer is weaker, so that the demodulation of the reader-writer is not facilitated, and the stability of the RFID system is further affected. Therefore, there is an urgent need for a radio frequency identification system with higher stability, which can ensure the communication distance between the reader and the passive tag, and can further improve the stability of the RFID system.
Disclosure of Invention
In view of the foregoing problems in the prior art, a radio frequency identification system is now provided.
The specific technical scheme is as follows:
the invention includes a radio frequency identification system comprising:
the electronic tag comprises a chip and a first antenna, wherein the chip is externally connected with the first antenna, and the chip is used for storing product information;
the radio frequency identification reader comprises a second antenna, the radio frequency identification reader transmits a first signal to the electronic tag through the second antenna so as to provide a working power supply for the chip, and the radio frequency identification reader is used for reading the product information stored in the electronic tag;
the host is connected with the radio frequency identification reader-writer and establishes two-way communication with the radio frequency identification reader-writer;
a carrier source including a third antenna, the carrier source transmitting a second signal to the electronic tag through the third antenna to provide additional energy to the chip;
the electronic tag receives the first signal and the second signal through the first antenna, converts the first signal and the second signal into induction current, boosts the induction current and provides the induction current for the chip, the chip transmits the stored product information to the radio frequency identification reader-writer through the first antenna, and the radio frequency identification reader-writer processes the product information and transmits the processed product information to the host.
Preferably, the chip includes:
the radio frequency front-end circuit is used for inputting the induction current and converting the induction current into a digital signal;
the logic control circuit is in bidirectional communication connection with the radio frequency front-end circuit, and the radio frequency front-end circuit transmits the digital signal to the logic control circuit;
the memory is in bidirectional communication connection with the logic control circuit, the logic control circuit processes the digital signals and transmits the processed digital signals to the memory, and after the memory receives the digital signals, the memory transmits the product information in the memory to the radio frequency front-end circuit through the logic control circuit and then transmits the product information to the radio frequency identification reader-writer through the first antenna.
Preferably, the radio frequency identification reader/writer further comprises:
the control unit is in bidirectional communication connection with a communication unit, and the control unit establishes bidirectional communication with the host through the communication interface;
the radio frequency unit is in bidirectional communication connection with the control unit, and the radio frequency unit converts a current signal output by the control unit into a first signal and sends the first signal to the electronic tag, or receives the product information transmitted by the electronic tag and converts the product information into a current signal to be transmitted to the control unit.
Preferably, the electronic tag is a passive tag.
Preferably, the first signal and the second signal each comprise a carrier or a modulated carrier.
Preferably, the communication unit comprises an RS-232 communication interface, an RS-485 communication interface, a Bluetooth communication interface, a GPRS communication interface, or a USB communication interface.
Preferably, the frequency of the second signal is the same as the frequency of the first signal.
The technical scheme of the invention has the beneficial effects that: the wireless radio frequency identification system can ensure the communication distance between the radio frequency identification reader-writer and the electronic tag, and can further improve the stability of the radio frequency identification system and the identification speed of the radio frequency identification reader-writer.
Drawings
Embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the invention.
Fig. 1 is a schematic diagram of a result of an rfid system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
The present invention includes a radio frequency identification system, as shown in fig. 1, comprising:
the electronic tag 1, the electronic tag 1 comprises a chip 10 and a first antenna 11, the chip 10 is externally connected with the first antenna 11, and the chip 10 is used for storing product information;
the radio frequency identification reader-writer 2 comprises a second antenna 21, the radio frequency identification reader-writer 2 transmits a first signal to the electronic tag 1 through the second antenna 21 to provide a working power supply for the chip 10, and the radio frequency identification reader-writer 2 is used for reading product information stored in the electronic tag 1;
the host 3 is connected with the radio frequency identification reader-writer 2 in a wired or wireless way, and establishes two-way communication with the radio frequency identification reader-writer 2;
a carrier source 4, the carrier source 4 comprising a third antenna 41, the carrier source 4 transmitting a second signal to the electronic tag 1 via the third antenna 41 to provide additional energy to the chip 10;
the electronic tag 1 receives the first signal and the second signal through the first antenna 11, the electronic tag 1 converts the first signal and the second signal into induced currents, the induced currents are boosted by the electronic tag 1 and then provided for the chip 10, the chip 10 transmits stored product information to the radio frequency identification reader-writer 2 through the first antenna 11, and the radio frequency identification reader-writer 2 processes the product information and then transmits the processed product information to the host computer 3.
Specifically, as shown in fig. 1, an independent carrier source 4 is disposed around the electronic tag 1, and a preset distance is disposed between the carrier source 4 and the electronic tag 1, where the length of the preset distance matches the power of the chip 10. The frequency of the second signal emitted by the carrier wave source 4 may be the same as or different from the frequency of the first signal, the electronic tag 1 may use the first antenna 11 to receive the second signal emitted by the carrier wave source 4, or may additionally add an antenna to receive the second signal of the carrier wave source 4, and in addition, the second signal emitted by the carrier wave source 4 includes a carrier wave and a modulated carrier wave.
Further, the electronic tag 1 can not only receive the first signal transmitted by the radio frequency identification reader-writer 2 to obtain working energy, but also obtain additional working energy through the carrier source 4, and further improve the stability of the radio frequency identification system under the condition that the communication distance between the radio frequency identification reader-writer 2 and the electronic tag 1 is not shortened.
In a preferred embodiment, as shown in FIG. 1, a chip 10 includes:
the radio frequency front-end circuit 101 is used for inputting the induction current and converting the induction current into a digital signal;
the logic control circuit 102 is in bidirectional communication connection with the radio frequency front-end circuit 101, and the radio frequency front-end circuit 101 transmits digital signals to the logic control circuit 102;
the memory 103 is in bidirectional communication connection with the logic control circuit 102, the logic control circuit 102 processes the digital signal and transmits the processed digital signal to the memory 103, and after the memory 103 receives the digital signal, the memory 103 transmits the product information in the memory 103 to the radio frequency front end circuit 101 through the logic control circuit 102 and then transmits the product information to the radio frequency identification reader-writer 2 through the first antenna 11.
Specifically, as shown in fig. 1, first, the host 3 sends a control command to the rfid reader 2, the rfid reader 2 receives the control command and transmits a first signal (the first signal is a scanning signal) to the electronic tag 1 through the second antenna 21, the first antenna 11 receives the first signal and converts the first signal into an induced current to be transmitted to the rf front-end circuit 101, the rf front-end circuit 101 converts the induced current into a digital signal, the digital signal is processed by the logic control circuit 102 and then transmitted to the memory 103, the memory 103 replies correspondingly according to the input digital signal carrying scanning information, the memory 103 sends stored product information to the rf front-end circuit 101 through the logic control circuit 102 and feeds back to the rfid reader 2 through the first antenna 11, and the rfid reader 2 processes the product information and then transmits the processed product information to the host 3.
In a preferred embodiment, the rfid reader 2 further comprises:
the control unit 22 is in bidirectional communication connection with a communication unit 23, and the control unit 22 establishes bidirectional communication with the host 3 through the communication interface 23;
the radio frequency unit 24 is in bidirectional communication connection with the control unit 22, and the radio frequency unit 24 converts a current signal output by the control unit 22 into a first signal and sends the first signal to the electronic tag 1, or receives product information transmitted by the electronic tag 1 and converts the product information into a current signal to be transmitted to the control unit 22;
the communication unit 23 comprises an RS-232 communication interface, or an RS-485 communication interface, or a bluetooth communication interface, or a GPRS communication interface, or a USB communication interface.
In particular, different communication interfaces correspond to different applications, e.g. a USB communication interface is suitable for office use; the RS-232 communication interface is suitable for being used on short-distance industrial automation equipment, book self-help borrowing and returning equipment and other equipment; the RS-485 communication interface is suitable for a remote bus mode (the maximum is 2000 meters) and is generally used for industrial automation equipment; the Bluetooth communication interface is suitable for being applied to the short-distance transmission data occasions inconvenient to wire, for example, a forklift is provided with the UR6258 which can be provided with the Bluetooth interface to avoid wire arrangement; the GPRS communication interface is suitable for long-range wireless data transmission (provided that signals of the mobile network are necessary).
The technical scheme of the invention has the beneficial effects that: the wireless radio frequency identification system can ensure the communication distance between the radio frequency identification reader-writer and the electronic tag, and can further improve the stability of the radio frequency identification system and the identification speed of the radio frequency identification reader-writer.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.
Claims (7)
1. A radio frequency identification system, comprising:
the electronic tag comprises a chip and a first antenna, wherein the chip is externally connected with the first antenna, and the chip is used for storing product information;
the radio frequency identification reader comprises a second antenna, the radio frequency identification reader transmits a first signal to the electronic tag through the second antenna so as to provide a working power supply for the chip, and the radio frequency identification reader is used for reading the product information stored in the electronic tag;
the host is connected with the radio frequency identification reader-writer and establishes two-way communication with the radio frequency identification reader-writer;
a carrier source including a third antenna, the carrier source transmitting a second signal to the electronic tag through the third antenna to provide additional energy to the chip;
the electronic tag receives the first signal and the second signal through the first antenna, converts the first signal and the second signal into induced currents, boosts the induced currents and provides the boosted induced currents to the chip, the chip transmits the stored product information to the radio frequency identification reader-writer through the first antenna, and the radio frequency identification reader-writer processes the product information and transmits the processed product information to the host;
and a preset distance is arranged between the carrier source and the electronic tag, and the length of the preset distance is matched with the power of the chip.
2. The wireless radio frequency identification system of claim 1, wherein the chip comprises:
the radio frequency front-end circuit is used for inputting the induction current and converting the induction current into a digital signal;
the logic control circuit is in bidirectional communication connection with the radio frequency front-end circuit, and the radio frequency front-end circuit transmits the digital signal to the logic control circuit;
the memory is in bidirectional communication connection with the logic control circuit, the logic control circuit processes the digital signals and transmits the processed digital signals to the memory, and after the memory receives the digital signals, the memory transmits the product information in the memory to the radio frequency front-end circuit through the logic control circuit and then transmits the product information to the radio frequency identification reader-writer through the first antenna.
3. The wireless radio frequency identification system of claim 1, wherein the radio frequency identification reader/writer further comprises:
the control unit is in bidirectional communication connection with a communication unit, and the control unit establishes bidirectional communication with the host through the communication interface;
the radio frequency unit is in bidirectional communication connection with the control unit, and the radio frequency unit converts a current signal output by the control unit into a first signal and sends the first signal to the electronic tag, or receives the product information transmitted by the electronic tag and converts the product information into a current signal to be transmitted to the control unit.
4. The wireless radio frequency identification system of claim 1, wherein the electronic tag is a passive tag.
5. The system of claim 1, wherein the first signal and the second signal each comprise a carrier or a modulated carrier.
6. A radio frequency identification system according to claim 3, wherein the communication unit comprises an RS-232 communication interface, or an RS-485 communication interface, or a bluetooth communication interface, or a GPRS communication interface, or a USB communication interface.
7. The system of claim 1, wherein the frequency of the second signal is the same as the frequency of the first signal.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110490016A CN110490016A (en) | 2019-11-22 |
| CN110490016B true CN110490016B (en) | 2023-06-23 |
Family
ID=68548427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910684888.8A Active CN110490016B (en) | 2019-07-26 | 2019-07-26 | Wireless radio frequency identification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110490016B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112163663B (en) * | 2020-10-23 | 2024-09-10 | 北京爱笔科技有限公司 | RFID tag, product with state switching function and related monitoring method |
| CN112668348B (en) * | 2021-01-05 | 2024-07-12 | 广东佳居乐家居科技有限公司 | Intelligent wireless radio frequency identification system for wardrobe |
| CN114528958B (en) * | 2022-02-18 | 2024-03-29 | 北京瑞尔世维医学研究有限公司 | Non-contact passive digital type two-stage collimator coding and identifying system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256018A (en) * | 2011-07-22 | 2011-11-23 | 清华大学 | Mobile phone with integrated RFID (Radio Frequency Identification) function and communication method thereof |
| CN203084836U (en) * | 2012-12-24 | 2013-07-24 | 东北大学秦皇岛分校 | RFID-based book lending system |
| CN104239914A (en) * | 2014-08-19 | 2014-12-24 | 西安三威安防科技有限公司 | Non-contact reader-writer |
| CN105678352A (en) * | 2015-12-31 | 2016-06-15 | 电子科技大学 | Long distance high speed data transmission system based on ultrahigh frequency RFID |
| CN208384577U (en) * | 2018-05-18 | 2019-01-15 | 北京世拓方舟科技有限公司 | Hand-held detection device |
| CN208922296U (en) * | 2018-08-23 | 2019-05-31 | 广州市挚联数码科技有限公司 | A kind of hospital's monitoring based on RFID label tag is washed one's hands system |
| CN212724059U (en) * | 2020-08-17 | 2021-03-16 | 北京首钢自动化信息技术有限公司 | Passive anti-metal electronic tag and identification system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130337756A1 (en) * | 2012-06-13 | 2013-12-19 | Broadcom Corporation | Method and Apparatus for Controlling NFC Tag Power Dissipation |
-
2019
- 2019-07-26 CN CN201910684888.8A patent/CN110490016B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256018A (en) * | 2011-07-22 | 2011-11-23 | 清华大学 | Mobile phone with integrated RFID (Radio Frequency Identification) function and communication method thereof |
| CN203084836U (en) * | 2012-12-24 | 2013-07-24 | 东北大学秦皇岛分校 | RFID-based book lending system |
| CN104239914A (en) * | 2014-08-19 | 2014-12-24 | 西安三威安防科技有限公司 | Non-contact reader-writer |
| CN105678352A (en) * | 2015-12-31 | 2016-06-15 | 电子科技大学 | Long distance high speed data transmission system based on ultrahigh frequency RFID |
| CN208384577U (en) * | 2018-05-18 | 2019-01-15 | 北京世拓方舟科技有限公司 | Hand-held detection device |
| CN208922296U (en) * | 2018-08-23 | 2019-05-31 | 广州市挚联数码科技有限公司 | A kind of hospital's monitoring based on RFID label tag is washed one's hands system |
| CN212724059U (en) * | 2020-08-17 | 2021-03-16 | 北京首钢自动化信息技术有限公司 | Passive anti-metal electronic tag and identification system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110490016A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110490016B (en) | Wireless radio frequency identification system | |
| KR101329227B1 (en) | RFID Tag, Terminals for RFID | |
| US20080030324A1 (en) | Data communication with sensors using a radio frequency identification (RFID) protocol | |
| US20060187031A1 (en) | Selecting RFID tags using memory-mapped parameters | |
| US20070175995A1 (en) | RFID reader/writer | |
| CN202904617U (en) | Radio frequency identification tag device using Bluetooth technology and radio frequency identification tag system using Bluetooth technology | |
| US20030030543A1 (en) | Proximity transaction control method | |
| CN210958364U (en) | RFID read write line and loRa wireless transmission device based on wireless loRa | |
| CN104050561A (en) | Financial payment system based on RFID | |
| CN103093172A (en) | Label reading equipment and label identification system | |
| KR102624022B1 (en) | Communication devices and methods | |
| CN111612116A (en) | Ultrahigh frequency RFID electronic tag, reading and writing device, cloud and cloud management system | |
| US9076052B2 (en) | Radio frequency identification control system | |
| KR20180095339A (en) | Triple sensor tag system providing uhf rfid, ble and nfc communication interface | |
| CN212435680U (en) | Multichannel radio frequency read-write equipment | |
| CN111476335B (en) | RFID electronic tag, RFID chip and commodity | |
| JP2013004054A (en) | Active rfid communication control method and rfid wireless device | |
| CN110661554A (en) | Radio frequency circuit, radio frequency tag and communication system | |
| CN201540583U (en) | RFID smart antenna | |
| Proehl et al. | An introduction to near field communications | |
| CN203084771U (en) | RFID-based monitoring management system | |
| CN210469306U (en) | Radio frequency circuit, radio frequency tag and communication system | |
| CN211827314U (en) | Intelligent information recognition device | |
| KR100771557B1 (en) | Module Of Expanding RFID Interface And Method thereof | |
| CN208156679U (en) | A kind of RFIDnt ultra-high frequency module for reading and writing for national standard and 6C consensus standard |
Legal Events
| 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200416 Address after: 315000 floor 1-4, east side of building F, 288 Jingu Middle Road (East), Yinzhou District, Ningbo City, Zhejiang Province Applicant after: Lixin Technology Co.,Ltd. Address before: 315000 room 901-2, No. 1, ningchuang technology center, Panhuo street, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: Zhejiang Lixin Software Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |