CN103839092B - A kind of ultrahigh frequency radio frequency identification (RFID) reader - Google Patents
A kind of ultrahigh frequency radio frequency identification (RFID) reader Download PDFInfo
- Publication number
- CN103839092B CN103839092B CN201410080443.6A CN201410080443A CN103839092B CN 103839092 B CN103839092 B CN 103839092B CN 201410080443 A CN201410080443 A CN 201410080443A CN 103839092 B CN103839092 B CN 103839092B
- Authority
- CN
- China
- Prior art keywords
- radio
- frequency
- rfid
- power
- module
- 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
Abstract
The invention discloses a kind of ultrahigh frequency radio frequency identification (RFID) reader, including：Radio-frequency module, for receiving signal and sending signal, and with power adjustable section；Ultrasonic sensor, for detecting the distance between the radio-frequency module and ultra-high frequency RFID label object；Memory cell, for storing the distance between radio-frequency module that the ultrasonic sensor detected and ultra-high frequency RFID label object；Processor, for the distance for controlling the memory cell storage detection to arrive, and controls the radio-frequency module regulation radio-frequency power；The processor is connected with the memory cell and the radio-frequency module respectively；Power module, for being powered to ultrasonic sensor and processor；Radio-frequency module power supply, for being powered to radio-frequency module.The ultrahigh frequency radio frequency identification (RFID) reader of the present invention is capable of the radiant power of dynamic regulation radio-frequency power amplifier, can not only optimize the power of system, reasonably save electric energy, additionally it is possible to reduce the probability disturbed between adjacent read write line.
Description
Technical field
The present invention relates to radio frequency identification (Radio Frequency Identification, RFID) technical field,
Specifically related to a kind of ultrahigh frequency radio frequency identification (RFID) reader.
Background technology
Radio frequency identification (Radio Frequency Identification, RFID) is a kind of automatic identification and acquisition
The technology of data, carries out noncontact bidirectional data communication by RF-wise and reaches the purpose recognized to target.With tradition
Identification method compare, RFID technique need not be contacted directly, optical visible or manual intervention can just complete the defeated of information
Enter and handle.And the technical operation is convenient, be widely used at present logistics, production, transport, traffic, medical treatment, tracking,
False proof, assets and equipment control etc. need to be collected data the application field of processing.Existing ultrahigh frequency radio frequency identification (RFID) reader,
Substantially what is used is all the pattern of high power consumption, and this pattern not only produces interference to RFID communication environments, and expends electric power money
Source, particularly portable read write line, endurance is excessively poor.Such as Publication No. CN101320419A, Application No.
200810302348.0 patent discloses " ultrahigh frequency RFID label reader-writer ", is read which show manufacture ultra-high frequency RFID label
Write the technology of device；Publication No. CN102622571A, the patent of Application No. 201210042758.2 discloses " a kind of improved
Ultrahigh frequency RFID reader ", which employs improved anti-collision technology, but does not consider the low-power consumption problem of reader；It is public
The number of opening is CN102446282A, and the patent of Application No. 201110358053.7 discloses " ultrahigh frequency radio frequency identification (RFID) reader chip ",
It is by reaching the purpose of low-power consumption to the improvement of ultrahigh frequency RFID chip, but it is low to reduce to improve ultrahigh frequency RFID chip
Power consumption is limited after all, is restricted by chip fabrication techniques, and the ultrahigh frequency RFID chip species used on the market is numerous
Many, ultrahigh frequency RFID chip can not be accomplished to unitize, therefore, and it is various to species that current technology can not meet modern society
Ultrahigh frequency radio frequency identification (RFID) reader low-power consumption the need for.
In addition, in traditional ultrahigh frequency RFID system, generally being read using definite value power ultra-high frequency RFID label
Write, in order to improve the read-write accuracy rate to RFID tag, often the transmission power of read write line is much larger than needed for reading label
Power, this mode not only result in the waste of electric energy, it is also possible to increase the probability disturbed between adjacent read write line.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of superelevation of the low-power consumption of use ultrasonic technology
Frequency RFID reader.
To achieve these goals, the present invention uses following technical scheme：
A kind of ultrahigh frequency radio frequency identification (RFID) reader, including：
Radio-frequency module, for receiving signal and sending signal, and with power adjustable section；
Ultrasonic sensor, for detecting the distance between the radio-frequency module and ultra-high frequency RFID label object；
Memory cell, for storing radio-frequency module and ultra-high frequency RFID label thing that the ultrasonic sensor is detected
The distance between body；
Processor, for the distance for controlling the memory cell storage detection to arrive, and controls the radio-frequency module
Adjust radio-frequency power；The processor is connected with the memory cell and the radio-frequency module respectively；
Power module, for being powered to ultrasonic sensor and processor；
Radio-frequency module power supply, for being powered to radio-frequency module.
Further, the radio-frequency module includes radio frequency chip and power amplifier.
Further, the radio frequency chip is AS3991.
Further, the distance of the ultrasonic sensor detection is at least 20 meters, and detection accuracy is centimetre rank.
Further, the processor is S3C2416 processors.
Further, the memory cell includes RAM and Flash, for making for the normal of the S3C2416 processors
With.
Further, the power module is powered using Boost circuit combination LDO mu balanced circuits.
Further, the processor is connected with external equipment.
Further, the external equipment includes SD card interface and UART.
The ultrahigh frequency radio frequency identification (RFID) reader of the present invention carries ultra-high frequency RFID label thing by using ultrasonic sensor detection
The distance between antenna of body and read write line, and according to the distance value detected, dynamic regulation radio-frequency power amplifier is put
Power is penetrated, can not only so optimize the power of system, reasonably save electric energy, additionally it is possible to generation between adjacent read write line is reduced
The probability of interference.
Brief description of the drawings
Fig. 1 is the schematic diagram of the ultrahigh frequency radio frequency identification (RFID) reader of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right with reference to embodiment and accompanying drawing
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the ultrahigh frequency radio frequency identification (RFID) reader of the present invention includes：Radio-frequency module, it is with power adjustable section
Super high frequency radio frequency module, for receive signal and send signal, the radio-frequency module include radio frequency chip and power amplifier, it is excellent
Choosing is using the AS3991 of Austrian microsystems as radio frequency chip, and AS3991 is the special core designed for ultrahigh frequency RFID
Piece, is integrated with transtation mission circuit, receiving circuit, conversion unit of protocol.It not only supports IS018000-6C agreements, is also compatible with
18000-6A/B agreements.The radio frequency chip has two kinds of communication interfaces of parallel interface and serial line interface, for entering with microcontroller
Row communication.Power amplifier is free to adjust the power of radio frequency.
Ultrasonic sensor, for detecting the distance between radio-frequency module and ultra-high frequency RFID label object, the ultrasonic wave
The distance of sensor detection is at least 20 meters, and detection accuracy is centimetre rank.Firstly the need of the high level to a 10us or so
Trigger signal.Ultrasonic sensor will produce eight continuous frequencies after the trigger signal is received to be believed for 40KHz pulse
Number, and the return of the high-frequency pulse signal is waited, after the reflected signal of ultra-high frequency RFID label object is received, ultrasonic wave is passed
Sensor will export one section of high level and give core S3C2416 processors, so as to complete the measurement work of distance, according to detection away from
From value, the radiant power of dynamic regulation radio-frequency power amplifier, so as to reach the purpose of optimization system power.
Memory cell, for store radio-frequency module and ultra-high frequency RFID label object that ultrasonic sensor detected it
Between distance, the memory cell includes RAM and Flash, can be used for the normal of S3C2416 processors.
Processor, for controlling memory cell to store radio-frequency module and ultrahigh frequency RFID that ultrasonic sensor is detected
The distance between tag object, and control radio-frequency module regulation radio-frequency power；Processor respectively with memory cell and radio frequency mould
Block is connected.In the present embodiment, the processor is S3C2416 processors, and S3C2416 is low-power consumption, high-performance, low cost
SAMSUNGARM9 (ARM926EJ) processor, the most chip of superiority of effectiveness, are the most perfect replacers of S3C2440.UT-
S3C2416 development boards are a high performance-price ratio development boards using S3C2416 processors as core.
Power module, for being powered to ultrasonic sensor and processor, the power module uses Boost circuit group
High-performance LDO mu balanced circuits are closed to be powered.The characteristics of requiring relatively low according to ultrasonic wave module power source performance, directly uses
Boost circuit is powered.Meanwhile, for convenience of the Intelligent management of power of each module, when it need not be used, system, which is taken, stops
The only measure such as power supply, independent power management design has been carried out to radio-frequency power amplifier and ultrasonic sensor circuit.It is being
When system is enabled, processor enters resting state, and CPU is powered under the state and carved in due course and opens ultrasonic sensor
Power supply.When detect object by when, open radio-frequency module power supply, the part includes baseband chip and two, power amplifier
Point.If detection terminates, radio-frequency module power supply is closed, system reenters resting state.The power module has low-power consumption
Intelligent power management module, with suitable voltage conversion circuit and suitable electric power management mechanism, such design is reduced
The overall power consumption of system.
The processor of the present invention is also connected with external equipment, and external equipment includes SD card interface and UART.SD card interface electricity
Road facilitates system to be used when transplanting BOOTLOADER and linux kernel；UART circuitry completes the communication of PC and the system,
Important effect is suffered from during debugging BOOTLOADER and linux kernel.
Embodiment described above only expresses embodiments of the present invention, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (9)
1. a kind of ultrahigh frequency radio frequency identification (RFID) reader, it is characterised in that including：
Radio-frequency module, for receiving signal and sending signal, and with power adjustable section；
Ultrasonic sensor, for detecting the distance between the radio-frequency module and ultra-high frequency RFID label object；
Memory cell, for store radio-frequency module and ultra-high frequency RFID label object that the ultrasonic sensor detected it
Between distance；
Processor, for the distance for controlling the memory cell storage detection to arrive, and controls the radio-frequency module regulation
Radio-frequency power；The processor is connected with the memory cell and the radio-frequency module respectively；
Power module, for being powered to ultrasonic sensor and processor；
Radio-frequency module power supply, for being powered to radio-frequency module；Wherein
According to detect it is described apart from dynamic regulation described in radio-frequency module radio-frequency power.
2. ultrahigh frequency radio frequency identification (RFID) reader according to claim 1, it is characterised in that the radio-frequency module includes radio frequency chip
And power amplifier.
3. ultrahigh frequency radio frequency identification (RFID) reader according to claim 2, it is characterised in that the radio frequency chip is AS3991.
4. ultrahigh frequency radio frequency identification (RFID) reader according to claim 1, it is characterised in that the ultrasonic sensor detection away from
From at least 20 meters, detection accuracy is centimetre rank.
5. ultrahigh frequency radio frequency identification (RFID) reader according to claim 1, it is characterised in that the processor is S3C2416 processing
Device.
6. ultrahigh frequency radio frequency identification (RFID) reader according to claim 5, it is characterised in that the memory cell include RAM and
Flash, for being used for the normal of the S3C2416 processors.
7. ultrahigh frequency radio frequency identification (RFID) reader according to claim 1, it is characterised in that the power module uses Boost liters
Volt circuit combination LDO mu balanced circuits are powered.
8. ultrahigh frequency radio frequency identification (RFID) reader according to claim 1, it is characterised in that the processor connects with external equipment
Connect.
9. ultrahigh frequency radio frequency identification (RFID) reader according to claim 8, it is characterised in that the external equipment includes SD card interface
And UART.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080443.6A CN103839092B (en) | 2014-03-06 | 2014-03-06 | A kind of ultrahigh frequency radio frequency identification (RFID) reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080443.6A CN103839092B (en) | 2014-03-06 | 2014-03-06 | A kind of ultrahigh frequency radio frequency identification (RFID) reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103839092A CN103839092A (en) | 2014-06-04 |
| CN103839092B true CN103839092B (en) | 2017-10-27 |
Family
ID=50802570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410080443.6A Active CN103839092B (en) | 2014-03-06 | 2014-03-06 | A kind of ultrahigh frequency radio frequency identification (RFID) reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103839092B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104636776B (en) * | 2014-12-19 | 2017-10-10 | 中国印钞造币总公司 | A kind of method and device that transmission power is adjusted based on application scenarios |
| CN104809488B (en) * | 2015-04-14 | 2017-12-08 | 天津七一二通信广播股份有限公司 | It is a kind of using ultrasonic ranging can adjust automatically transmission power internet-of-things terminal |
| CN105426941A (en) * | 2015-12-21 | 2016-03-23 | 深圳市科陆电子科技股份有限公司 | Work control method for RFID reader |
| CN107818354A (en) * | 2017-11-08 | 2018-03-20 | 西安航天自动化股份有限公司 | A kind of industrial ultrahigh frequency radio frequency identification (RFID) reader all-in-one of radio-frequency power self-regulation |
| CN108427899B (en) * | 2018-05-11 | 2023-09-29 | 杭州义益钛迪信息技术有限公司 | High-precision ultrahigh-frequency RFID near-field tag detection system |
| CN108763993A (en) * | 2018-07-03 | 2018-11-06 | 上海芯智能科技有限公司 | The noninductive control methods of RFID based on range sensor, apparatus and system |
| TWI749291B (en) * | 2019-02-22 | 2021-12-11 | 立象科技股份有限公司 | Rfid reader and power setting method thereof |
| CN111611816A (en) * | 2019-02-22 | 2020-09-01 | 立象科技股份有限公司 | Radio frequency identification reading device and power setting method thereof |
| CN111767747A (en) * | 2020-06-30 | 2020-10-13 | 西交利物浦大学 | Intelligent label applied to logistics storage unit |
| CN112800790A (en) * | 2021-01-14 | 2021-05-14 | 杭州荣旗科技有限公司 | UHF reader-writer capable of automatically adjusting power consumption |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176009A (en) * | 2011-01-24 | 2011-09-07 | 北京北大千方科技有限公司 | Microwave distance measurement-based antenna positioning method and device |
| CN102183760A (en) * | 2010-09-19 | 2011-09-14 | 西南交通大学 | Location method based on power scanning of radio frequency identification (RFID) reader-writer antenna |
| CN202453905U (en) * | 2012-02-28 | 2012-09-26 | 福建师范大学 | Ultrahigh frequency (UHF) radio frequency identification (RFID) reader with adjustable communication distance |
| CN103192854A (en) * | 2013-04-18 | 2013-07-10 | 上海博达数据通信有限公司 | Vehicle tracking and positioning system and vehicle tracking and positioning method |
| CN203799395U (en) * | 2014-03-06 | 2014-08-27 | 太仓欧卡网络服务有限公司 | Ultrahigh frequency RFID reader-writer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8400305B2 (en) * | 2009-10-12 | 2013-03-19 | Motorola Solutions, Inc. | Method and apparatus for determining range information of a node in a wireless system |
| CN102673421B (en) * | 2012-05-16 | 2014-12-10 | 奇瑞汽车股份有限公司 | Method for switching sleep mode and wakeup mode of electric vehicle control unit and realization circuit thereof |
-
2014
- 2014-03-06 CN CN201410080443.6A patent/CN103839092B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183760A (en) * | 2010-09-19 | 2011-09-14 | 西南交通大学 | Location method based on power scanning of radio frequency identification (RFID) reader-writer antenna |
| CN102176009A (en) * | 2011-01-24 | 2011-09-07 | 北京北大千方科技有限公司 | Microwave distance measurement-based antenna positioning method and device |
| CN202453905U (en) * | 2012-02-28 | 2012-09-26 | 福建师范大学 | Ultrahigh frequency (UHF) radio frequency identification (RFID) reader with adjustable communication distance |
| CN103192854A (en) * | 2013-04-18 | 2013-07-10 | 上海博达数据通信有限公司 | Vehicle tracking and positioning system and vehicle tracking and positioning method |
| CN203799395U (en) * | 2014-03-06 | 2014-08-27 | 太仓欧卡网络服务有限公司 | Ultrahigh frequency RFID reader-writer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103839092A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103839092B (en) | A kind of ultrahigh frequency radio frequency identification (RFID) reader | |
| CN103810521B (en) | Digital baseband processor for passive RFID (radio frequency identification) electronic tag | |
| CN106355218A (en) | Active electronic tag system for positioning accurately | |
| CN100375975C (en) | RFID device based on 802.11 b | |
| WO2019119773A1 (en) | Container positioning system, container positioning method, and electronic tag | |
| CN203799395U (en) | Ultrahigh frequency RFID reader-writer | |
| CN203444488U (en) | ISO7816 standard IC card and non-contact intelligent card reading module | |
| CN205193845U (en) | Integration data collection station based on mobile internet technique | |
| CN207164845U (en) | A kind of contactless smart gate control system | |
| CN103761561B (en) | The hyperfrequency Internet of Things chip of compatible ISO18000-6C standard | |
| CN203414990U (en) | Double-frequency tag card | |
| CN202495051U (en) | Three-in-one second generation identity card reader | |
| CN204087219U (en) | A kind of ultrahigh frequency readers | |
| CN203276321U (en) | Multifunctional hand-held reader-writer based on ARM Cortex-A8 processor | |
| CN207319244U (en) | Low-power consumption radio frequency exploration card circuit | |
| CN204631913U (en) | RFID multifrequency development system | |
| CN204706047U (en) | A kind of RFID card reader for high fail-safe computer | |
| CN203179031U (en) | Active radio frequency identification system | |
| CN207976902U (en) | A kind of Intelligent indoor is looked for something system | |
| CN203689575U (en) | Medical equipment data acquisition hand-held machine based on RFID technology | |
| CN108851453A (en) | A kind of portable package with article reminding function based on electronic tag | |
| CN203759712U (en) | Long-distance active RFID card reader with signal attenuation adjustment | |
| CN203759735U (en) | Non-contact inductive electronic tag and proximity card | |
| CN203299829U (en) | Active RFID system | |
| CN203386229U (en) | Simple radio frequency identification card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200611 Address after: Yuyao City, Zhejiang province 315400 Ningbo Zhongyi Ningbo ecological park Hing Rd No. 28 Patentee after: ZHEJIANG RUIHUA KANGYUAN TECHNOLOGY Co.,Ltd. Address before: No. 6 East Beijing road in Taicang City, Suzhou City, Jiangsu Province Economic Development Zone, 215400 room 500 Patentee before: Taicang Ouka Network Service Co.,Ltd. |
|
| TR01 | Transfer of patent right |