CN202075760U - Radio frequency identification system - Google Patents

Radio frequency identification system Download PDF

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Publication number
CN202075760U
CN202075760U CN2011201613669U CN201120161366U CN202075760U CN 202075760 U CN202075760 U CN 202075760U CN 2011201613669 U CN2011201613669 U CN 2011201613669U CN 201120161366 U CN201120161366 U CN 201120161366U CN 202075760 U CN202075760 U CN 202075760U
Authority
CN
China
Prior art keywords
radio
harvester
frequency
central platform
fsk433
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.)
Expired - Fee Related
Application number
CN2011201613669U
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Chinese (zh)
Inventor
王少峰
刘均昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FIRS TECHNOLOGY Co Ltd
Original Assignee
FIRS TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN2011201613669U priority Critical patent/CN202075760U/en
Application granted granted Critical
Publication of CN202075760U publication Critical patent/CN202075760U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A radio frequency identification system comprises a central platform, an acquisition device and a group of responsers, wherein the acquisition device is in communication connection with all responsers through wireless radio frequency signals; and the acquisition device is in communication connection with the central platform by an FSK433 wireless communication module. As a microprocessor is arranged inside the acquisition device, the RFID (radio frequency identification device) obtains an intelligent analysis function; the RFID detects all electronic TAGs including legal TAGs and illegal TAGs and then transmits the electronic TAGs to the FSK433 module; and the FSK433 module analyzes various data intelligently, stores the whole detection process, analyzes the legality of the TAGs, includes recording the invasion of the illegal TAGs and simultaneously reporting the analyzing results to the central platform.

Description

A kind of radio-frequency recognition system
Technical field
The utility model relates to radio-frequency recognition system, and the particularly harvester of radio-frequency recognition system, this harvester central platform by wireless transmission and radio-frequency recognition system communicates gets in touch.
Background technology
Radio-frequency (RF) identification (RFID Radio Frequency Identification) claim electronic tag again, it is a kind of contactless automatic identification technology, it is by the automatic recognition objective object of radiofrequency signal and obtain related data, identification work need not manual intervention, can work in various rugged surroundings.The RFID technology can be discerned high-speed moving object and can discern a plurality of labels simultaneously, and is swift and convenient to operate.
Rfid system is a kind of simple wireless system, has only two basic devices, and this system is used for control, detection and tracking object.System is made up of a harvester (also claiming interrogator or reader) and a lot of transponder (claiming radio-frequency card or electronic tag tag again).Harvester directly is reported to central platform with the information of the relevant label that collects, is discerned and is handled by central platform.
The RF technology utilizes wireless radio frequency mode to carry out the noncontact bi-directional transfer of data between harvester and electronic tag, has reached the purpose of Target Recognition and exchanges data.
The harvester of radio-frequency recognition system is made up of three parts at present:
1, label (Tag, i.e. radio-frequency card): be made up of coupling element and chip, label contains built-in aerial, be used for and radio-frequency antenna between communicate;
2, reader: the equipment that reads (in read-write card, can also write) label information;
3, antenna: between label and reader, transmit radiofrequency signal.
In addition, reader is sent to central platform (outer computer) after collecting the information of label, carries out data processing in central platform.At present, reader pass through RS232 or the RS485 communication interface is connected with central platform (outer computer), carry out exchanges data.
Existing reader functionality is single, behind the collection TAG electronic labeling information, directly reports, and can not carry out information processing in harvester.In addition, what the central platform of harvester and radio-frequency recognition system adopted is wired connection, and the big installation of existing harvester volume is inconvenient.
The utility model content
Goal of the invention of the present utility model is that the device for picking that overcomes present radio-frequency recognition system adopts and wiredly to communicate with central platform, installs inconveniently, and the deficiency that can not carry out information processing provides a kind of harvester of radio-frequency recognition system.
The technical scheme that the utility model adopts in order to realize its technical purpose is: a kind of radio-frequency recognition system, comprise central platform, harvester and one group of transponder, described harvester communicates to connect by radio frequency signal and all transponder, harvester and central platform are by communicating to connect, described harvester communicates by the FSK433 wireless communication module with central platform and is connected, described harvester comprises the radio-frequency antenna of the radiofrequency signal that receives transponder, the radiofrequency signal that described radio-frequency antenna is received is carried out the radiofrequency signal processing module of demodulation process, microprocessor and interface circuit, described radio-frequency antenna is connected with described radio frequency processing module, the baseband signal output terminal of described radiofrequency signal processing module links to each other with the input end of described microprocessor, and the output of described microprocessor links to each other with interface circuit.
Further, in above-mentioned a kind of radio-frequency recognition system: the model of described radiofrequency signal processing module is NrF24L01.
The utility model is owing to be provided with microprocessor in harvester, make RFID have the intellectual analysis function, after RFID detects various TAG electronic tags, comprise legal TAG and illegal TAG, pass to the FSK433 module, the various data of FSK433 module intellectual analysis, store whole detection process, analyze the TAG legitimacy, comprise the illegal TAG invasion of record, will analyze the back result simultaneously and report central platform.
Below in conjunction with specific embodiment and accompanying drawing the utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the utility model embodiment 1 system chart.
Fig. 2 is a harvester block diagram among the utility model embodiment 1.
Fig. 3 is the block diagram of the FSK433 module of use among the utility model embodiment 1.
Embodiment
Embodiment 1, as Fig. 1, Fig. 2 and shown in Figure 3, present embodiment is a kind of radio-frequency recognition system, comprise central platform, harvester and one group of transponder, described harvester communicates to connect by radio frequency signal and all transponder, harvester and central platform are by communicating to connect, described harvester communicates by the FSK433 wireless communication module with central platform and is connected, described harvester comprises the radio-frequency antenna of the radiofrequency signal that receives transponder, the radiofrequency signal that described radio-frequency antenna is received is carried out the radiofrequency signal processing module of demodulation process, microprocessor and interface circuit, described radio-frequency antenna is connected with described radio frequency processing module, the baseband signal output terminal of described radiofrequency signal processing module links to each other with the input end of described microprocessor, the output of described microprocessor links to each other with interface circuit, and the model of this place radiofrequency signal processing module is NrF24L01.
Present embodiment is an a kind of pair of wireless identification system, be that harvester and transponder adopt the radio communication mode, harvester and central platform adopt the FSK433 wireless communication module to communicate, harvester is the reader of RFID, it is NrF24L01 that the RF front end adopts chip, microprocessor MCU is wherein undertaking the initialization of RF front end, configuration and exchanges data, and the based structures block diagram is as shown in Figure 2.
The chip model that the wireless long distance communication module group FSK433 that adopts in the present embodiment adopts is that the characteristics of A7120B are as follows, structured flowchart as shown in Figure 3, by radio-frequency module A7120B the fsk signal that antenna receives is handled, baseband signal is handled by microprocessor MCU, by interface circuit the signal that receives is sent to processing terminal at last, equally, the signal of processing terminal enters into the FSK433 communication module by interface circuit, after being processed into baseband signal by MCU, carrying out FSK modulation back at radio-frequency module A7120B and launch by antenna.
This FSK433 module is that a collection is received and sent out and be the two-way module of one, the control of both having undertaken peripheral hardware, the collection that the while is being undertaken outside FSK433 information again.
This module can receive the instruction that host platform is sent according to the demand of system, and the peripheral hardware that relates to is carried out corresponding necessary control.
This module can be collected the information that outside FSK433 equipment is sent, and carries out analyzing and processing, and the result is reported host platform.

Claims (2)

1. radio-frequency recognition system, comprise central platform, harvester and one group of transponder, described harvester communicates to connect by radio frequency signal and all transponder, it is characterized in that: described harvester communicates by the FSK433 wireless communication module with central platform and is connected, described harvester comprises the radio-frequency antenna of the radiofrequency signal that receives transponder, the radiofrequency signal that described radio-frequency antenna is received is carried out the radiofrequency signal processing module of demodulation process, microprocessor and interface circuit, described radio-frequency antenna is connected with described radio frequency processing module, the baseband signal output terminal of described radiofrequency signal processing module links to each other with the input end of described microprocessor, and the output of described microprocessor links to each other with interface circuit.
2. a kind of radio-frequency recognition system according to claim 1 is characterized in that: the model of described radiofrequency signal processing module is NrF24L01.
CN2011201613669U 2011-05-20 2011-05-20 Radio frequency identification system Expired - Fee Related CN202075760U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201613669U CN202075760U (en) 2011-05-20 2011-05-20 Radio frequency identification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201613669U CN202075760U (en) 2011-05-20 2011-05-20 Radio frequency identification system

Publications (1)

Publication Number Publication Date
CN202075760U true CN202075760U (en) 2011-12-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201613669U Expired - Fee Related CN202075760U (en) 2011-05-20 2011-05-20 Radio frequency identification system

Country Status (1)

Country Link
CN (1) CN202075760U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108768466A (en) * 2018-05-21 2018-11-06 天津中兴智联科技有限公司 A kind of ultrahigh frequency RFID wireless communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108768466A (en) * 2018-05-21 2018-11-06 天津中兴智联科技有限公司 A kind of ultrahigh frequency RFID wireless communication system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111214

Termination date: 20190520

CF01 Termination of patent right due to non-payment of annual fee