CN103646261A - Intelligent traffic radio frequency card automatic reading and inquiring system - Google Patents
Intelligent traffic radio frequency card automatic reading and inquiring system Download PDFInfo
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- CN103646261A CN103646261A CN201310623293.4A CN201310623293A CN103646261A CN 103646261 A CN103646261 A CN 103646261A CN 201310623293 A CN201310623293 A CN 201310623293A CN 103646261 A CN103646261 A CN 103646261A
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Abstract
The invention discloses an intelligent traffic radio frequency card automatic reading and inquiring system comprising an antenna, a baseband signal modulation and emission unit, a radio frequency signal receiving and processing unit and a controller. The baseband signal modulation and emission unit comprises a baseband signal generation circuit, a phase-locked loop circuit, a frequency mixing modulation circuit, a band-pass filter circuit and a power amplification circuit. The radio frequency signal receiving and processing unit comprises a radio frequency demodulation circuit, a low-pass filter circuit and a difference amplification circuit. The antenna is connected with the radio frequency demodulation circuit. The output of the radio frequency demodulation circuit is connected with the controller via the low-pass filter circuit and the difference amplification circuit in turn. The output of the controller is connected with the baseband signal generation circuit. The output of the baseband signal generation circuit is connected with the antenna via the phase-locked loop circuit, the frequency mixing modulation circuit, the band-pass filter circuit and the power amplification circuit in turn. An electronic tag is activated firstly, and then the electronic tag emits tag information to the reading and inquiring system so that safety of the tag information can be effectively guaranteed.
Description
Technical field
The present invention relates to RFID(radio-frequency (RF) identification) technology, particularly a kind of intelligent transportation radio-frequency card reads inquiry system automatically.
Background technology
RFID radio-frequency (RF) identification (Radio Frequency Identification) is to start to rise a kind of automatic identification technology also moving to maturity gradually the nineties in 20th century.Radio-frequency (RF) identification is RFID(Radio Frequency IDentification) technology, claim again electronic tag, radio frequency identification, can identify specific objective and read and write related data by radio signals, and without setting up machinery between recognition system and specific objective or optics contacts, be a kind of contactless automatic identification technology.RFID technology recognizable object object also obtains the related data of high-speed moving object and can identify a plurality of labels simultaneously, swift and convenient to operate.
REID is utilized radiofrequency signal to realize contactless information by Space Coupling and is transmitted, and passes through transmitted information and reach identifying purpose.Concrete, radio-frequency (RF) identification is mainly by card reader (or being called reader) be attached to the mutual information transmission between the electronic tag (or being called radio-frequency identification card) being identified on object, by card reader, read the information of carrying on electronic tag, and undertaken alternately by Internet Transmission and background data base, realize functions such as the identification of information and inquiries.Compare such as bar code, magnetic card etc. with now widely used automatic identification technology, REID has advantages of a lot of outstanding: Touchless manipulation, and long distance identification (can reach several centimetres to tens meters), need not manual intervention, and application is convenient; Machinery-free wearing and tearing, the life-span is long, can work in rugged surroundings; RFID passive label low price, is beneficial to universal.Constantly perfect along with radio frequency automatic identification standard, RFID starts extensively to start in fields such as material tracking, supply chain management, communications and transportation and access controls application, and market outlook are wide.
Along with the development of microelectric technique, slim small and exquisite electronic label chip, not only can store enough data, and has the ability of carrying out information interaction with reader, in the application of commodity identification and field of anti-counterfeit technology, has obtained significant progress.Electronic tag is for commodity identification and anti-counterfeiting technology, that merchandise news and false proof data are stored in electronic tag, in the commodity process of circulation, the data in reader reading electronic labels, by with server in the data of database identify and compare, realize the Antiforge inquiry of commodity.The development of telling along with society, the demand of product is increased, market competition is also day by day fierce, enterprise's an urgent demand continues to improve the reaction capacity to market, improve the competitive power of enterprise, because RFID technology has the advantages such as noncontact, input speed is fast, accuracy rate is high, reliability is strong, broken through " bottleneck " problem of traditional data collection typing.But the electronic tag of prior art reads query facility, be all single read write line mostly, PC terminal must be connected and the parsing to electronic tag memory information could be realized, use complexity, be not suitable for the place that the demands such as sales field are large and floating population is many.Owing to equipment itself not being encrypted to processing, electronic labeling information is easy to leak, and is also easy to other read-write equipments to cause interference.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, providing a kind of first activates electronic tag, then electronic tag is again to reading inquiry system transmitting label information, and the intelligent transportation radio-frequency card that can realize contrast on the spot and inquiry service by local data base reads inquiry system automatically.
The object of the invention is to be achieved through the following technical solutions: intelligent transportation radio-frequency card reads inquiry system automatically, it comprises antenna, baseband signal modulate emission unit, radiofrequency signal reception & disposal unit, controller, local data base and interface unit, described baseband signal modulate emission unit comprises that baseband signal produces circuit, phase-locked loop circuit, mixed modulated circuit, bandwidth-limited circuit and power amplification circuit, and described radiofrequency signal reception & disposal unit comprises radio demodulating circuit, low-pass filter circuit and differential amplifier circuit; Antenna reception radio electronic label information, and be connected with radio demodulating circuit, the output of radio demodulating circuit is connected controller by low-pass filter circuit with differential amplifier circuit successively, controller is connected with interface unit with local data base respectively, the control output of controller produces circuit, phase-locked loop circuit, mixed modulated circuit, bandwidth-limited circuit by baseband signal successively and is connected antenna with power amplification circuit, and antenna sends to electronic tag by radiofrequency signal.
The described inquiry system that reads also comprises a load module and display module, and the input of load module is connected with controller, and the output of controller connects display module.
The invention has the beneficial effects as follows: electronic tag sends before electronic labeling information to reading inquiry system, reading inquiry system emitting radio frequency signal activates to electronic tag, then electronic tag is again to reading inquiry system transmitting label information, prevent the leakage of electronic labeling information, ensuring information security property, can avoid this electronic tag to cause interference to the query facility that reads of non-native system simultaneously; Read inquiry system and be provided with local data base, in local data base, store electronic labeling information, can realize contrast and inquiry service on the spot, without connecting PC terminal, can resolve label substance, easy to use.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, further illustrate technical scheme of the present invention, but the content that the present invention protects is not limited to the following stated.
As shown in Figure 1, intelligent transportation radio-frequency card reads inquiry system automatically, it comprises antenna, baseband signal modulate emission unit, radiofrequency signal reception & disposal unit, controller, local data base and interface unit, described baseband signal modulate emission unit comprises that baseband signal produces circuit, phase-locked loop circuit, mixed modulated circuit, bandwidth-limited circuit and power amplification circuit, and described radiofrequency signal reception & disposal unit comprises radio demodulating circuit, low-pass filter circuit and differential amplifier circuit; Antenna reception radio electronic label information, and be connected with radio demodulating circuit, the output of radio demodulating circuit is connected controller by low-pass filter circuit with differential amplifier circuit successively, controller is connected with interface unit with local data base respectively, the control output of controller produces circuit, phase-locked loop circuit, mixed modulated circuit, bandwidth-limited circuit by baseband signal successively and is connected antenna with power amplification circuit, and antenna sends to electronic tag by radiofrequency signal.
The described inquiry system that reads also comprises a load module and display module, and the input of load module is connected with controller, and the output of controller connects display module.
Claims (2)
1. intelligent transportation radio-frequency card reads inquiry system automatically, it is characterized in that: it comprises antenna, baseband signal modulate emission unit, radiofrequency signal reception & disposal unit, controller, local data base and interface unit, described baseband signal modulate emission unit comprises that baseband signal produces circuit, phase-locked loop circuit, mixed modulated circuit, bandwidth-limited circuit and power amplification circuit, and described radiofrequency signal reception & disposal unit comprises radio demodulating circuit, low-pass filter circuit and differential amplifier circuit; Antenna reception radio electronic label information, and be connected with radio demodulating circuit, the output of radio demodulating circuit is connected controller by low-pass filter circuit with differential amplifier circuit successively, controller is connected with interface unit with local data base respectively, the control output of controller produces circuit, phase-locked loop circuit, mixed modulated circuit, bandwidth-limited circuit by baseband signal successively and is connected antenna with power amplification circuit, and antenna sends to electronic tag by radiofrequency signal.
2. intelligent transportation radio-frequency card according to claim 1 reads inquiry system automatically, it is characterized in that: the described inquiry system that reads also comprises a load module and display module, the input of load module is connected with controller, and the output of controller connects display module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310623293.4A CN103646261B (en) | 2013-11-30 | 2013-11-30 | Intelligent traffic radio frequency card reads inquiry system automatically |
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| CN201310623293.4A CN103646261B (en) | 2013-11-30 | 2013-11-30 | Intelligent traffic radio frequency card reads inquiry system automatically |
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| CN103646261A true CN103646261A (en) | 2014-03-19 |
| CN103646261B CN103646261B (en) | 2017-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749372A (en) * | 2014-12-17 | 2016-07-13 | 南通市第人民医院 | Monitoring device for configuring liquid medicine information |
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|---|---|---|---|---|
| CN2872476Y (en) * | 2006-02-16 | 2007-02-21 | 深圳市先施科技有限公司 | Manual passive radio-frequency label reader |
| KR20070109349A (en) * | 2006-05-11 | 2007-11-15 | 엘지이노텍 주식회사 | Radio frequency identification of direct conversion type |
| CN201047947Y (en) * | 2007-04-16 | 2008-04-16 | 深圳市配天网络技术有限公司 | Read-write equipment of pet identification and management |
| CN102622620A (en) * | 2012-01-10 | 2012-08-01 | 上海交通大学 | Wireless identification read-write device |
| CN203573340U (en) * | 2013-11-30 | 2014-04-30 | 四川久远新方向智能科技有限公司 | Intelligent traffic radio frequency card automatic reading query system |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872476Y (en) * | 2006-02-16 | 2007-02-21 | 深圳市先施科技有限公司 | Manual passive radio-frequency label reader |
| KR20070109349A (en) * | 2006-05-11 | 2007-11-15 | 엘지이노텍 주식회사 | Radio frequency identification of direct conversion type |
| CN201047947Y (en) * | 2007-04-16 | 2008-04-16 | 深圳市配天网络技术有限公司 | Read-write equipment of pet identification and management |
| CN102622620A (en) * | 2012-01-10 | 2012-08-01 | 上海交通大学 | Wireless identification read-write device |
| CN203573340U (en) * | 2013-11-30 | 2014-04-30 | 四川久远新方向智能科技有限公司 | Intelligent traffic radio frequency card automatic reading query system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749372A (en) * | 2014-12-17 | 2016-07-13 | 南通市第人民医院 | Monitoring device for configuring liquid medicine information |
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| CN103646261B (en) | 2017-08-18 |
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Effective date of registration: 20240119 Address after: No. 3-2, Service Center Complex Building, No. 15 Jinchuan Road, High tech Industrial Park, Yantan District, Zigong City, Sichuan Province, 643030 Patentee after: Zigong Chengtong New Direction Rail Transit Equipment Manufacturing Co.,Ltd. Address before: Building C6, Tianfu Software Park, No. 81 Tuoxin East Street, High tech Zone, Chengdu City, Sichuan Province, 610041 Patentee before: SICHUAN FORNEW TECHNOLOGIES Co.,Ltd. |
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