CN102447166A - RFID (Radio Frequency Identification Device) intelligent antenna stack matrix system - Google Patents

Abstract

The invention discloses an RFID (Radio Frequency Identification Device) intelligent antenna stack matrix system which at least comprises two RFID antenna stacks, an RFID antenna multipath controller, an RFID reader-writer and a background processing system. Each RFID antenna stack at least comprises two RFID antennas and an RFID antenna middleware. The RFID antennas are connected with the corresponding RFID antenna middleware through coaxial cables. The RFID antenna middlewares are connected with the RFID antenna multipath controller through coaxial cables. The RFID antenna multipath controller is connected with the RFID reader-writer through a coaxial cable. The RFID reader-writer is connected with the background processing system through a communication data line. The background processing system is used for controlling the RFID reader-writer and the RFID antenna multipath controller through control data lines. According to the RFID intelligent antenna stack matrix system, objects in a region can be rapidly and accurately checked.

Description

RFID smart antenna group matrix system

Technical field

The present invention relates to a kind of smart antenna group matrix system, particularly a kind of RFID (RadioFrequency Identification, radio frequency identification) smart antenna group matrix system.

Background technology

Current to the article checking on the shelf, put checking of article as books, archives material, medicine, clothes etc. are intensive, adopt manual work to check mode usually.Even used RFID technology, labeled the checking of books of RFID, also be need carry out manual work through the cautious equipment of RFID to check usually.The intensive article of putting of facing this type carry out manual work to be checked, and not only wastes time and energy, and mistakes and omissions take place easily, and lacks real time effect.Especially as far as library's industry, books and archives material be if can not be reflected in the frame situation in real time, and the reader is borrowed books or the data that burrows into archives all can be brought unnecessary trouble and extra searching the time.

Summary of the invention

Technical problem to be solved by this invention provides a kind of RFID smart antenna group matrix system, and it can accomplish checking article in the zone fast and accurately.

For solveing the technical problem; The invention provides a kind of RFID smart antenna group matrix system; It is characterized in that; It comprises two RFID antenna sets, RFID antenna multiplexer (MUX, rfid interrogator and background processing system at least, and each RFID antenna sets comprises two RFID antennas and a RFID antenna middleware at least, and the RFID antenna is connected with RFID antenna middleware through coaxial cable; RFID antenna middleware is connected with RFID antenna multiplexer (MUX through coaxial cable; RFID antenna multiplexer (MUX is connected with rfid interrogator through coaxial cable, and rfid interrogator is connected with background processing system through the communication data line, and background processing system is through control data line traffic control rfid interrogator and RFID antenna multiplexer (MUX.

Preferably; Said RFID antenna middleware comprise one first radio frequency input and output master port and more than two the first radio frequency input and output from port; The first radio frequency input and output master port is connected with RFID antenna multiplexer (MUX, and the first radio frequency input and output are connected with the RFID antenna from port.

Preferably; Said RFID antenna multiplexer (MUX comprise one second radio frequency input and output master port and more than two the second radio frequency input and output from port and a control signal receiving port; Rfid interrogator comprises a radio frequency input/output port and a control signal transmit port; The second radio frequency input and output master port connects the radio frequency input/output port; The second radio frequency input and output are connected with the first radio frequency input and output master port from port, and the control signal receiving port is connected with the control signal transmit port.

Positive progressive effect of the present invention is: the present invention can accomplish checking like the article on the shelf in the zone easy, fast and accurately.The process of checking of article only need can accurately be accomplished the checking and counting to article through tracking, the monitoring of back-stage management application software to the article real-time status in the zone.Especially as far as library's industry, can let reader and librarian realize real-time positioning, reduce the search and the search procedure of data, promote the service quality of library's industry some appointment books or archives material.

Description of drawings

Fig. 1 is the theory diagram of RFID smart antenna group matrix system of the present invention.

Fig. 2 is the theory diagram of RFID antenna middleware among the present invention.

Fig. 3 is the theory diagram of RFID antenna multiplexer (MUX among the present invention.

Fig. 4 is the theory diagram of rfid interrogator among the present invention.

Fig. 5 (a) to the putting position of 5 (d) expression RFID antenna and and article between the sketch map of relative position.

Embodiment

Lift a preferred embodiment below, and combine accompanying drawing to come the clearer the present invention that intactly explains.

RFID smart antenna group matrix system of the present invention is monitored the books, archives material, the intensive article of putting (like medicine, clothes etc.) that have the RFID label.As shown in Figure 1; RFID smart antenna group matrix system of the present invention comprises twoRFID antenna sets 3, RFID antenna multiplexer (MUX 4, rfid interrogator 5 and background processing system 9 at least; EachRFID antenna sets 3 comprises twoRFID antennas 1 and a RFID antenna middleware 2 at least;RFID antenna 1 is connected with RFID antenna middleware 2 through coaxial cable 6; RFID antenna middleware 2 is connected with RFID antenna multiplexer (MUX 4 through coaxial cable 6; RFID antenna multiplexer (MUX 4 is connected with rfid interrogator 5 through coaxial cable 6, and rfid interrogator 5 is connected with background processing system 9 throughcommunication data line 8, and background processing system 9 is throughcontrol data line 7 control rfid interrogators 5 and RFID antenna multiplexer (MUX 4.Rfid interrogator 5 is converted into radio-frequency information with the data message of background processing system 9 and outputs toRFID antenna 1 through RFID antenna multiplexer (MUX 4, RFID antenna middleware 2; The radiofrequency signal of the Item Information on the RFID label ofRFID antenna 1 feedback is converted into data-signal returns to background processing system 9; Thereby accomplish the collection of Item Information, carry out information processing and application to carry out the backstage.

For realizing monitoring to all Item Information in the matrix system; RFID smart antenna group matrix system of the present invention will be selected to switch to eachRFID antenna sets 3 through RFID antenna multiplexer (MUX 4 successively; Read respective articles information respectively and carry out comprehensively the real-time monitoring of realization whole system Item Information by background processing system 9.

As shown in Figure 2, RFID antenna middleware 2 comprise one first radio frequency input andoutput master port 21 and more than two the first radio frequency input and output from port 22.The first radio frequency input andoutput master port 21 is connected with RFID antenna multiplexer (MUX 4, and the first radio frequency input and output are connected withRFID antenna 1 fromport 22.

As shown in Figure 3, RFID antenna multiplexer (MUX 4 comprise one second radio frequency input andoutput master port 41 and more than two the second radio frequency input and output fromport 42 and a controlsignal receiving port 43.

As shown in Figure 4, rfid interrogator 5 comprises adata PORT COM 51, a radio frequency input/output port 52 and a control signal transmit port 53.The second radio frequency input andoutput master port 41 connects 52, the second radio frequency input and output of radio frequency input/output port and is connected with the first radio frequency input andoutput master port 21 from port 42.Controlsignal receiving port 43 is connected with controlsignal transmit port 53 or the control signal transmit port of background processing system 9 connects.

The selection ofRFID antenna sets 3 is through background processing system 9 or rfid interrogator 5 sky line options data to be sent to controlsignal receiving port 43 through controlsignal transmit port 53, is switched by RFID antenna multiplexer (MUX 4.

Like Fig. 5 (a) to shown in 5 (d), the putting position ofRFID antenna 1 and and the relative position of 10 of article generally have four kinds of form: Fig. 5 (a) expression RFID antenna to intert in the middle of article; Fig. 5 (b) expression RFID antenna is placed on the inboard of article; Fig. 5 (c) expression RFID antenna is placed on the bottom of article; Fig. 5 (d) expression RFID antenna is placed on the top of article.Different application can be selected different antennas placement location scheme for use according to the difference of article, the difference that the RFID label sticks on the relative position of article, to obtain maximum efficient and performance.For preventing that the adjacent antenna group from misreading adjacent domain RFID label, adopt metal to cut off the shielding processing that barricade carries out adjacent area at regional intersection.Adopt radio frequency same-phase or phase difference scanning between the antenna in same group, phase difference value is spent between 360 degree and can be regulated continuously 0.

The work general flow of RFID smart antenna group matrix system according to the present invention below describes the operation principle of system:

Background processing system 9 is according to the configuring condition of system requirements andRFID antenna sets 3; Instruct rfid interrogator 5 and RFID antenna multiplexer (MUX 4 through the 7 transmitting antenna group selections of control data line; And carry out antenna sets by RFID antenna multiplexer (MUX 4 according to system command and select to switch; Gating rfid interrogator 5 and the passage that is selected antenna sets; Sending the radiofrequency signal instruction by rfid interrogator 5 outputs on theRFID antenna 1 that is connected with RFID antenna middleware 2 through RFID antenna middleware 2; ThroughRFID antenna 1 radiofrequency signal is sent to the RFID label that sticks on the article with form of electromagnetic wave, and the information on the RFID label is received, is reduced to data-signal by rfid interrogator 5 throughRFID antenna 1 and the form of RFID antenna middleware 2 with radiofrequency signal, turn back to background processing system 9 and handle.Simultaneously, background processing system 9 selects nextRFID antenna sets 3 to carry out data acquisition process.After background processing system is accomplished the information gathering to allRFID antenna sets 3, with obtaining current all information and states,, can accomplish operations such as the checking of article, location through carrying out relevant treatment with the system original information at the frame article.

The mode of operation of RFID smart antenna group matrix system of the present invention has two kinds: poll mode of operation and assigned work pattern.Wherein, the poll mode of operation is that system reads each antenna sets overlay area according to antenna sets order transmission commands for controlling antenna sets poll, to obtain all RFID label datas of total system coverage, realizes complete the reading of entire antenna group matrix system.The poll mode of operation can be divided into automatic regular polling and these two kinds of working methods of Event triggered poll according to Starting mode.The automatic regular polling mode is meant that background system regularly sends the poll work order to rfid interrogator 5 and RFID antenna multiplexer (MUX 4 according to application requirements according to setting cycle repeatedly; The work of Integratively poll is promptly accomplished in instruction of every transmission; Thereby be implemented in special time in the cycle repeatedly poll gather the RFID label data in the entire antenna group matrix coverage, reach the purpose of real-time monitoring.The Event triggered polling mode is that background system receives the triggering command that outside certain particular emergency event produced and sends the poll work orders to rfid interrogator 5 and RFID antenna multiplexer (MUX 4; Entire antenna group matrix system is accomplished one whole polling data collecting work; With the real-time monitoring response of realization system to certain particular event, the RFID label data that reflects this particular event in real time and produced changes.

The assigned work pattern reads its overlay area for sending certain specific group of antennas of commands for controlling, to obtain all RFID label datas of this antenna sets coverage.The assigned work pattern also can be divided into according to Starting mode regularly specifies and these two kinds of working methods of Event triggered appointment.Regularly specific mode is that system regularly sends the work order of reading the given antenna group to rfid interrogator 5 and RFID antenna multiplexer (MUX 4 according to application demand according to setting cycle repeatedly repeatedly; Instruction of every transmission is promptly carried out a data acquisition to this antenna sets coverage; Thereby be implemented in special time in the cycle repeatedly poll gather the RFID label data in certain antenna sets coverage, reach the particular range purpose of monitoring in real time.The Event triggered specific mode is that background system receives the triggering command that outside certain particular emergency event produced and sends the work order of reading the given antenna group to rfid interrogator 5 and RFID antenna multiplexer (MUX 4; Completion is to the data collection task of this antenna sets coverage; With of the real-time monitoring response of realization system, realize the data management monitoring that more becomes more meticulous to certain particular event.

Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these execution modes.Therefore, protection scope of the present invention is limited appended claims.

Claims (3)

1. RFID smart antenna group matrix system; It is characterized in that; It comprises two RFID antenna sets, RFID antenna multiplexer (MUX, rfid interrogator and background processing system at least; Each RFID antenna sets comprises two RFID antennas and a RFID antenna middleware at least; The RFID antenna is connected with RFID antenna middleware through coaxial cable, and RFID antenna middleware is connected with RFID antenna multiplexer (MUX through coaxial cable, and RFID antenna multiplexer (MUX is connected with rfid interrogator through coaxial cable; Rfid interrogator is connected with background processing system through the communication data line, and background processing system is through control data line traffic control rfid interrogator and RFID antenna multiplexer (MUX.

2. RFID smart antenna group matrix system as claimed in claim 1; It is characterized in that; Said RFID antenna middleware comprise one first radio frequency input and output master port and more than two the first radio frequency input and output from port; The first radio frequency input and output master port is connected with RFID antenna multiplexer (MUX, and the first radio frequency input and output are connected with the RFID antenna from port.

3. RFID smart antenna group matrix system as claimed in claim 2; It is characterized in that; Said RFID antenna multiplexer (MUX comprise one second radio frequency input and output master port and more than two the second radio frequency input and output from port and a control signal receiving port; Rfid interrogator comprises a radio frequency input/output port and a control signal transmit port; The second radio frequency input and output master port connects the radio frequency input/output port, and the second radio frequency input and output are connected with the first radio frequency input and output master port from port, and the control signal receiving port is connected with the control signal transmit port.

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