CN101118588A - RFID reader and system, method and applied system thereof - Google Patents
RFID reader and system, method and applied system thereof Download PDFInfo
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- CN101118588A CN101118588A CNA2006100891016A CN200610089101A CN101118588A CN 101118588 A CN101118588 A CN 101118588A CN A2006100891016 A CNA2006100891016 A CN A2006100891016A CN 200610089101 A CN200610089101 A CN 200610089101A CN 101118588 A CN101118588 A CN 101118588A
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- 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
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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- 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
- G06K19/0723—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
Abstract
The present invention relates to the field of wireless radio frequency recognition. in particular to a RFDID reader as well as a system, a method and an application system of the RFDID reader. The aim is to increase the transmitting distance of the existing FRID system and overcome the influence of a shelter object. The method includes steps as follow: Step 1, a reader radio frequency unit which belongs to the RFID reader communicates with at least one distal transmitter responder or a transmitter responder radio frequency unit of a subordinated reader which is positioned at the downstream of the distal transmitter responder under the control of a subordinate reader control unit and via at least one antenna, and the corresponding information is obtained. Step 2, the transmitter responder radio frequency unit of the subordinated reader communicates with a main reader or the reader radio frequency unit of the subordinated reader which is positioned at the upstream of the main reader via the antenna, and the information is transmitted to the main reader or the reader radio frequency unit of the subordinated reader which is at the upstream of the main reader. The present invention is beneficially characterized in that the retractility of the system is rather large. The structure of the whole system is very concise and the maintenance is easy.
Description
Technical field
The present invention relates to the radio frequency identification field, particularly grow distance or use radio RF recognition technology in closed box, is RFID reader and system thereof, method, application system concretely.
Background technology
Radio frequency identification (RFID) technology is a kind of and bar code recognition, optical character identification, the automatic identification technology that smart card and biological assay etc. are arranged side by side.The RFID transponder is to RFID reader emission storage unique identifier thereon, and for example electronic product code (EPC) carries out article or identification.
From the principle of work of rfid system, generally all by transponder (for example electronic tag etc.), signal receiver (reader), these two parts are formed in system.Be illustrated respectively below:
1. transponder
In rfid system, transponder can exist with different forms for different application purposes, and typical form is label (Tag).Label is equivalent to the bar code symbol in the barcode technology, and being used for storage needs the identification information transmitted, and in addition, different with bar code is, label must be automatically or under the effect of radiofrequency signal, and canned data is launched.The radio frequency unit of transponder is used for the signal of reader is carried out work such as demodulation, decoding, with encode for the signal that sends to reader, modulation, this radio frequency unit also has simple antenna, by the signal between antenna reception transmission and the reader.
2. signal receiver (reader)
In rfid system, signal receiver generally is called reader.According to the difference and different (for example encrypted transmission functions) of finishing function of supporting tag types, the complexity of reader has a great difference.The reader basic functions just provides the data interaction with label.In addition, reader also provides quite complicated signal condition control, bad parity verification and orthofunction more etc.Except storage needs information transmitted, also must contain certain additional information in the label, as error-checking information etc.Recognition data and information and additional information are organized in together according to certain frame structure, and outwards send according to specific order.Reader comes the transmission of control data stream by the additional information that receives.In case the information that arrives reader by correct reception and decipher after, whether reader needs transponder to the signal repetition that sends once by specific algorithm decision, perhaps notifies transponder to stop to signal, Here it is " command response agreement ".Use this agreement,, also can prevent the confusion of information effectively even if read a plurality of labels in very short time, very little space.The radio frequency unit of reader is used for the information that will send, be carried on the carrier signal of a certain frequency after the encoded and modulation and outwards send through antenna, response signal to the transponder that receives is carried out work such as demodulation, decoding, this radio frequency unit also has antenna, be used for to transponder transmitting RF signal, the signal that the receiver/transmitter transponder returns.
The power of rfid system in actual applications, the shape of antenna and relative position all can influence transmitting and receiving of signal, need the professional that the antenna of system is designed, installs.
According to energy supply, the RFID transponder is divided into passive transponder (passive label Passive Tag) and active transmitter transponder (active label Active Tag).The active transmitter transponder has their power supply, is generally battery, perhaps is sun power or other energy.Passive transponder does not have corresponding power-supply device, the substitute is it and collect the electric wave that the RFID reader is launched, use as power supply, therefore, it is more cheap that passive transponder is compared active transmitter transponder cost, and higher range of application is arranged.
After passive label enters magnetic field,, just can rely on the faradic energy of acquisition to send out the product information that is stored in the chip if receive the special radiofrequency signal that reader sends; Perhaps active label partly provides energy initiatively to send the signal of a certain frequency by the energy supply of its transponder.After reader reads information and decoding, deliver to related system (for example the accounting system in supermarket, the management system in warehouse etc.) and carry out relevant data and handle.
RFID inactive component utilization radiowave is as energy supply and means of communication, and signal must be in the scope that transponder allows, normally 10 feet (about 3 meters).This class mark is suitable for the short distance information Recognition, establishes as on disposable shaver or these class petty commodities of removable blade packing box passive label being set.
In general, the RFID transponder is because consider the small and exquisite and simple pattern that is designed to that the reason of energy consumption and cost all tried one's best, and passive transponder has small and exquisite antenna and finite storage space, can offer its long enough apart from the energy that transmits data by receiving electromagnetic wave.For passive transponder, for example backscattering connects transponder (after transponder receives the radiofrequency signal of reader, this signal is reflected to reader with same frequency, carry the radio-frequency signal of transponder information in this reflected signal, for the reader processing and identification), the data of understanding also all are the electromagnetic waves that the reflection reader modulate is launched, so effective range is very little.But the transponder that a lot of RFID use all needs the operation of long distance, and current rfid system has no idea to satisfy such demand.
Main in the prior art by changing RFID reader and RFID transponder, for example on radio-frequency power, strengthen to some extent, use different frequency, with new made, but the near problem of solution transmission range that these means all can not be basic, and cause the lifting of production cost.
Chinese patent 03824841.7, denomination of invention is " method and apparatus of information in storage and the distribution RFID tag ", the method and apparatus of information in a kind of storage and the distribution RFID tag is disclosed, this scheme has storer, supports to grow the RF transceiver that distance R F communicates by letter with long range reader and is supported on the safety chain interface with the short haul connection of short range reader.The ID that the RF transceiver can be used for being stored in tag ram sends to long range reader, and interface can be used in, and responsive historical information sends to short range reader on safety chain.Though this scheme can provide longer relatively Card Reader distance, be to use the long range reader of strengthening emissive power, along with the growth cost of signal receiving range can rise very soon, and the extensibility of this system and dirigibility are lower.
Chinese patent 00813640.8, denomination of invention is " the low cost long distance radio-frequency (RF) identification reads ", a kind of electrically conductive ink of using is disclosed in packaging bag, on packing case, print out two large area regions, a non-conductive part of these two packaged casees in zone or packaging bag separates, play a part the RF antenna, place a label that has a RFID chip then, make it two electrically conductive ink parts of this RF antenna of cross-over connection, in fact exactly antenna part is connected on the RFID chip, has so just produced one at the product that is easy to realize aspect surveying or reading.Owing to adopt the area of ink printing mode antenna to obtain increasing, the also corresponding increase of the effective range of antenna, though this scheme can increase the detection range of rfid system to a certain extent, still can not the RF label in container or the closed box be detected.
Summary of the invention
In order to overcome the above problems, the object of the present invention is to provide a kind of RFID reader, utilize transponder unit on this device to receive the signal of main reader, utilize the reader on this device to send signal to real transponder, and receive the return message of real transponder, and return this device to main reader and go up canned data.
In order to overcome the above problems, the object of the present invention is to provide a kind of layering rfid system, can strengthen the applications distances of RFID to a great extent, system reads a plurality of RFID label informations earlier by the subordinate reader of arranging by different level, compress a plurality of label informations in a frame, and send information to upper level subordinate reader or main reader by the transponder unit of this subordinate reader.This makes wider that the technology of RFID can use, and layering RFID structure of the present invention is transparent for existing transponder and system, does not need existing rfid system and construction standard are done any change.
In order to overcome the above problems, the object of the present invention is to provide a kind of method that distance R FID transmits information of growing, can effectively increase the distance that information transmits between reader and the real label by simple method.
In order to overcome the above problems, the object of the present invention is to provide a kind of layering rfid system that is used to scan the box house label, the system of scanning label when being used between label and reader, having barrier.
A kind of RFID reader comprises,
Readable and writable memory is connected with control module, is used to store the information of at least one transponder;
One reader radio frequency unit is connected with described control module, is used to modulate, the radiofrequency signal between demodulation and at least one its downstream transponder;
It is characterized in that also comprising:
One transponder radio frequency unit is connected with described control module, is used to modulate, the radiofrequency signal between demodulation and its upstream reader;
At least one antenna is connected with the reader radio frequency unit with described transponder radio frequency unit, be used to launch, receive and its upstream reader or downstream transponder between signal;
Described control module is controlled the information that described reader radio frequency unit is collected at least one its downstream transponder, described information stores in described readable and writable memory, and is controlled described transponder radio frequency unit and transmitted described information to its upstream reader.
Described antenna is 2, and one is connected in described transponder radio frequency unit, and one is connected in described reader radio frequency unit.
A kind of layering rfid system comprises, main reader, at least one distant transmitter transponder; Also comprise:
At least one subordinate reader, be connected between described main reader and described at least one distant transmitter transponder, the information that the reader radio frequency unit of this subordinate reader is collected the transponder radio frequency unit of described at least one distant transmitter transponder or downstream subordinate reader by at least one antenna, and the transponder radio frequency unit of this subordinate reader sends described information to by described antenna the reader radio frequency unit of described main reader or upstream subordinate reader.
At least two with different levels being series between described main reader and described at least one distant transmitter transponder of described subordinate reader, the transponder radio frequency unit of layer 1 subordinate reader is connected in described main reader by described antenna, the reader radio frequency unit of layer 1 subordinate reader is connected in the transponder radio frequency unit of its downstream layer i subordinate reader by described antenna, the reader radio frequency unit of layer i subordinate reader is connected in the transponder radio frequency unit of its downstream layer n subordinate reader by described antenna, the reader radio frequency unit of described layer n subordinate reader is connected in described distant transmitter transponder by described antenna, and i is 2 to n positive integer.
Described antenna is 2, a transponder radio frequency unit that is connected in described subordinate reader, and towards the reader radio frequency unit of described main reader or its upstream subordinate reader; A reader radio frequency unit that is connected in described subordinate reader, and towards the transponder radio frequency unit of described distant transmitter transponder or its downstream subordinate reader.
A kind of method of rfid system Delamination Transmission comprises,
Step 1, the reader radio frequency unit of subordinate reader is under the control of subordinate reader control module, transponder radio frequency unit by at least one antenna and at least one distant transmitter transponder or its downstream subordinate reader communicates, and obtains corresponding information;
Step 2, the transponder radio frequency unit of described subordinate reader communicates by the reader radio frequency unit of described antenna and main reader or its upstream subordinate reader, and the reader radio frequency unit of described information to described main reader or its upstream subordinate reader transmitted.
Before described step 1, also comprise a setting up procedure, the transponder radio frequency unit of described subordinate reader receives the signal of the reader radio frequency unit of described main reader or its upstream subordinate reader by described antenna, and send this signal the control section of described subordinate reader to, carry out step 1 with the reader radio frequency unit that starts described subordinate reader.
In described step 2, the Information Compression of described at least one the distant transmitter transponder that described subordinate reader will be collected or the transponder radio frequency unit of its downstream subordinate reader becomes the useful load in the frame, to the reader radio frequency unit transmission of main reader or its upstream subordinate reader.
The transponder radio frequency unit of described subordinate reader is active or passive, and described reader radio frequency unit is active.
Described antenna is 2, and one is connected in described transponder radio frequency unit, and towards the reader radio frequency unit of described main reader or its upstream subordinate reader; One is connected in described reader radio frequency unit, and towards the transponder radio frequency unit of described distant transmitter transponder or its downstream subordinate reader.
A kind ofly be used to scan the layering rfid system that is positioned at transponder behind the screen, comprise, main reader, at least one distant transmitter transponder, screen, described at least one distant transmitter transponder is in described screen one side, and described main reader is at described screen opposite side, also comprise
Also comprise the subordinate reader, be placed on the described screen to have two antennas, antenna 1 is positioned at main reader one side of described screen, and antenna 2 is positioned at distant transmitter transponder one side of described screen; The transponder radio frequency unit of described subordinate reader is by the reader radio frequency unit mutual transmission signals of described antenna 1 with described main reader or its upstream subordinate reader, and the reader radio frequency unit of described subordinate reader is by the transponder radio frequency unit mutual transmission signals of described antenna 2 with described at least one distant transmitter transponder or its downstream subordinate reader; The information that the reader radio frequency unit of described subordinate reader is collected the transponder radio frequency unit of described at least one distant transmitter transponder or its downstream subordinate reader by described antenna 2, the reader radio frequency unit that transponder radio frequency unit and the described antenna 1 by described subordinate reader sends described main reader or its upstream subordinate reader to.
Beneficial effect of the present invention is, in existing rfid system, do not need to change existing device, only need on adding structure between existing reader and the label, just can increase communication distance by very simple subordinate reader, the retractility of system is very big, the structure of total system is quite succinct, safeguards easily.And, can also realize discerning the purpose of internal container label easily by the subordinate reader being placed in the examples such as container.
Description of drawings
Fig. 1 is a layering RFID subordinate reader device structural representation of the present invention;
Fig. 2 is the inventive method sequential chart;
Fig. 3 increases the frame conversion synoptic diagram of RFID transmission range method for the present invention;
Fig. 4 is a system architecture synoptic diagram of the present invention;
Fig. 5 is used to scan the layering rfid system embodiment synoptic diagram of box house label for the present invention.
Embodiment
Below, carry out following detailed description for the present invention in conjunction with the accompanying drawings.
Add an extra RFID reader in existing rfid system, the RFID reader that has AC or DC power supply now is defined as main reader (MR), and initiate reader is defined as subordinate reader (SR).
Be illustrated in figure 1 as subordinate reader structural representation of the present invention, being configured to of this subordinate reader: the radio frequency part that adds transponder to existing reader, subordinate reader of the present invention has comprised transponder radio frequency unit and former reader radio frequency unit, the radio frequency unit of transponder and the radio frequency unit of former reader all link with the control module of this subordinate reader, and the transponder radio frequency unit of subordinate reader is connected with one or more antennas with the reader radio frequency unit, can use an antenna to receive jointly and emitting radio frequency signal (receiving and send the signal timesharing carries out), perhaps can use 2 antennas, an antenna is connected in the transponder radio frequency unit of this radio frequency unit, is used for receiving, signal between emission and the main reader; An antenna is connected in the reader radio frequency unit of this radio frequency unit, is used to receive, the signal between emission and the Commercial goods labels.Transponder by antenna and Commercial goods labels after the reader radio frequency unit of subordinate reader starts communicates, obtain the information of this Commercial goods labels, and be stored on the storer of this subordinate reader, this storer is a readable and writable memory, sends main reader to by transponder radio frequency unit on this subordinate reader and antenna under the control module control of subordinate reader.Main reader is collected the information of relevant Commercial goods labels in the subordinate reader, sets up non-between transponder and the main reader and directly is connected.The subordinate reader is active reader, and this active subordinate reader can be by power supplies such as embedded battery or vehicles.When interacting with main reader, the transponder radio frequency unit of subordinate reader is taken as a virtual RFID label (active or passive), main reader is as the RFID reader operation of subordinate reader, at this moment, the embedded battery of subordinate reader (or the electromagnetic wave that passes through main reader obtains energy) is to the chip power supply of its transponder radio frequency unit, when access tag, use Embedded battery to partly power supply such as the reader radio frequency unit of subordinate reader and control module, the subordinate reader is as the real label (this label comprises active and passive) that scans of the prior art.
Fig. 2 is the inventive method sequential synoptic diagram.Stage 1, main reader is launched an electromagnetic wave signal, the transponder radio frequency unit of subordinate reader is collected this electromagnetic wave energy for himself circuit use (identical with the passive label mode) by antenna, perhaps the transponder radio frequency unit of subordinate reader is activated by the electromagnetic wave of main reader emission, uses the power supply power supply of subordinate reader.Simultaneously, main reader is launched a command information to the subordinate reader that activates.Stage 2, the subordinate reader is powered to parts such as reader radio frequency unit, control modules by its own power source according to the command information of main reader, just as reader of the prior art, launch an electromagnetic wave signal and a Card Reader command information to the transponder of for example electronic tag.In the stage 3, the passive transponder on the Commercial goods labels passes through to receive the electromagnetic wave signal that above-mentioned subordinate reader sends, and returns the unique identifier information such as (ID) of this tag transmitter transponder stores to the subordinate reader.Stage 4, after scanning is finished, the data of one or more Commercial goods labelses are collected in the storer of subordinate reader, and the subordinate reader is one by one transmitted (frame structure does not change) to main reader with these data, in this repeating process and the prior art between transponder and its reader mode of mutual biography data the same.In the rfid system of this hierarchy, the subordinate reader is as the reader of real label, again as the label of main reader.
Main reader and subordinate reader all carry out data-switching, are illustrated in figure 3 as Frame conversion synoptic diagram of the present invention.The data such as unique identifier of storing in the transponder of an electronic tag are compressed within the frame, and send the subordinate reader to by air interface.Frame structure and air interface all meet a certain RFID standard, for example meet the standard (EPCglobal Class 1 Gen 2) of RFID international standardizing bodies.When the correct reception of subordinate reader behind the frame of a plurality of Commercial goods labels transponders, retrieval information such as unique identifier and it is stored in the readable and writable memory of this subordinate reader.At this moment the Frame of label can be sent to main reader one by one, the air interface between subordinate reader and the main reader can be standard interface; Also can work as receive all Frames after, the control module of subordinate reader compresses the useful load (data message of a plurality of labels all has interval flag in the frame) in frame of these Frames formation, the subordinate reader transmits this frame by its a transponder radio frequency unit and a day alignment master reader, receive the frame of subordinate reader when main reader after, useful load to this frame decompresses, and obtaining the unique identifier of a plurality of Commercial goods labelses again, the interface between main reader and the user's application system also is the interface in the existing system.Like this in the efficiency ratio prior art that the synthetic frame of a plurality of unique identifiers is transmitted one by one the efficient of transmit data frames improve a lot.
Fig. 4 is a system architecture synoptic diagram of the present invention, and main reader has defined a virtual read device (VR) with combining of subordinate reader, and virtual read device middle for user side application system and transponder is transparent.Air interface between the transponder of subordinate reader and Commercial goods labels according to the ISO standard or EPCglobal standard or use the transponder of existing rfid system and the air interface between the reader.So existing transponder can not produce different with communication between the virtual read device of the present invention.Communication interface between main reader and the user's application system also meets existing rfid system.Based on above description, existing user side application system and transponder can be without using in layering rfid system of the present invention of changing.For the user, if made up common rfid system, and change to layering rfid system of the present invention is not need to change any existing equipment, only need be between former reader and transponder according to actual needs distance add one or more subordinate readers of the present invention and just can realize.Just can read a plurality of labels simultaneously as reader in the prior art, a main reader can read a plurality of subordinate readers, perhaps as shown in Figure 4, main reader is significantly increased with the mode that distance L between the subordinate reader receiver transponder can add a plurality of subordinate readers of the present invention by the mode of connecting.The transponder radio frequency unit of layer 1 subordinate reader is connected in main reader by antenna, the reader radio frequency unit of layer 1 subordinate reader is connected in the transponder radio frequency unit of its downstream layer i subordinate reader by antenna, the reader radio frequency unit of layer i subordinate reader is connected in the transponder radio frequency unit of its downstream layer n subordinate reader by antenna, the reader radio frequency unit of layer n subordinate reader is connected in the transponder of Commercial goods labels by antenna, and i is 2 to n positive integer.The upstream reader of described subordinate reader is meant the reader that communicates with its transponder radio frequency unit, and this reader can be common reader, also can be subordinate reader of the present invention; The downstream reader of described subordinate reader is meant label or the subordinate reader of the present invention that communicates with its reader radio frequency unit.
General RFID transponder is by the radiowave harvest energy and transmit data.Unfortunately, radiowave can not penetrating metal and can be rebounded by metal, to such an extent as to can't read the data of transponder.In container transfer system, the RFID reader can't read the label that is inclusive in the canister, and this situation often occurs.
Be illustrated in figure 5 as the layering rfid system embodiment synoptic diagram that the present invention is used to scan the box house label.One subordinate reader is installed on container or the container, and extends two antennas of this subordinate reader on casing, one of them is the antenna of the transponder radio frequency unit of this subordinate reader, towards main reader (promptly being positioned at outside the case); Another is the antenna of the reader radio frequency unit of this subordinate reader, towards a plurality of transponders of box house.Main reader transmits an electromagnetic wave signal by the antenna to the casing outside, as the energy that activates the transponder radio frequency unit of subordinate reader on the casing.The reader radio frequency unit of subordinate reader is launched object label in the electromagnetic wave signal scanning casing by the antenna of internal container.The transponder radio frequency unit of this subordinate reader is transmitted the data of collecting by the antenna of container outside to main reader then, and this process sends unique identifier just as transponder to reader.Also can be during certain this application by series connection subordinate reader to increase the signal transmission distance between main reader and the Commercial goods labels.
In this RFID application scenarios, the working range of the rfid system of layering can access great expansion, and further, the label in metal cabinet inside can directly be obtained at any time, and need not be as present traditional RFID technology OOBA (out of box audit).
Beneficial effect of the present invention is, by with the subordinate reader as trunking, the coverage between main reader and the label obtains increasing.Change not quite for rfid system of the prior art, only increased a subordinate reader, so the repacking of the cost of native system takes very low.By compressing the data of a plurality of labels, the efficient that reader reads a plurality of labels simultaneously can be improved.The retractility of native system is very big, can be applied to multiple use, for example, can be used to read in the RFID label in the metal container.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (11)
1. a RFID reader comprises,
Readable and writable memory is connected with control module, is used to store the information of at least one transponder;
One reader radio frequency unit is connected with described control module, is used to modulate, the radiofrequency signal between demodulation and at least one its downstream transponder;
It is characterized in that also comprising:
One transponder radio frequency unit is connected with described control module, is used to modulate, the radiofrequency signal between demodulation and its upstream reader;
At least one antenna is connected with the reader radio frequency unit with described transponder radio frequency unit, be used to launch, receive and its upstream reader or downstream transponder between signal;
Described control module is controlled the information that described reader radio frequency unit is collected at least one its downstream transponder, described information stores in described readable and writable memory, and is controlled described transponder radio frequency unit and transmitted described information to its upstream reader.
2. a kind of RFID reader according to claim 1 is characterized in that described antenna is 2, and one is connected in described transponder radio frequency unit, and one is connected in described reader radio frequency unit.
3. a layering rfid system comprises, main reader, at least one distant transmitter transponder; It is characterized in that comprising:
At least one subordinate reader, be connected between described main reader and described at least one distant transmitter transponder, the information that the reader radio frequency unit of this subordinate reader is collected the transponder radio frequency unit of described at least one distant transmitter transponder or downstream subordinate reader by at least one antenna, and the transponder radio frequency unit of this subordinate reader sends described information to by described antenna the reader radio frequency unit of described main reader or upstream subordinate reader.
4. a kind of layering rfid system according to claim 3, it is characterized in that, at least two with different levels being series between described main reader and described at least one distant transmitter transponder of described subordinate reader, the transponder radio frequency unit of layer 1 subordinate reader is connected in described main reader by described antenna, the reader radio frequency unit of layer 1 subordinate reader is connected in the transponder radio frequency unit of its downstream layer i subordinate reader by described antenna, the reader radio frequency unit of layer i subordinate reader is connected in the transponder radio frequency unit of its downstream layer n subordinate reader by described antenna, the reader radio frequency unit of described layer n subordinate reader is connected in described distant transmitter transponder by described antenna, and i is 2 to n positive integer.
5. according to claim 3 or 4 described a kind of layering rfid systems, it is characterized in that, described antenna is 2, a transponder radio frequency unit that is connected in described subordinate reader, and towards the reader radio frequency unit of described main reader or its upstream subordinate reader; A reader radio frequency unit that is connected in described subordinate reader, and towards the transponder radio frequency unit of described distant transmitter transponder or its downstream subordinate reader.
6. the method for a rfid system Delamination Transmission is characterized in that,
Step 1, the reader radio frequency unit of subordinate reader is under the control of subordinate reader control module, transponder radio frequency unit by at least one antenna and at least one distant transmitter transponder or its downstream subordinate reader communicates, and obtains corresponding information;
Step 2, the transponder radio frequency unit of described subordinate reader communicates by the reader radio frequency unit of described antenna and main reader or its upstream subordinate reader, and the reader radio frequency unit of described information to described main reader or its upstream subordinate reader transmitted.
7. the method for a kind of rfid system Delamination Transmission according to claim 6, it is characterized in that, before described step 1, also comprise a setting up procedure, the transponder radio frequency unit of described subordinate reader receives the signal of the reader radio frequency unit of described main reader or its upstream subordinate reader by described antenna, and send this signal the control section of described subordinate reader to, carry out step 1 with the reader radio frequency unit that starts described subordinate reader.
8. the method for a kind of rfid system Delamination Transmission according to claim 6, it is characterized in that, in described step 2, the Information Compression of described at least one the distant transmitter transponder that described subordinate reader will be collected or the transponder radio frequency unit of its downstream subordinate reader becomes the useful load in the frame, to the reader radio frequency unit transmission of main reader or its upstream subordinate reader.
9. the method for a kind of rfid system Delamination Transmission according to claim 6 is characterized in that, the transponder radio frequency unit of described subordinate reader is active or passive, and described reader radio frequency unit is active.
10. according to the method for claim 6 or 7 or 8 described a kind of rfid system Delamination Transmission, it is characterized in that, described antenna is 2, and one is connected in described transponder radio frequency unit, and towards the reader radio frequency unit of described main reader or its upstream subordinate reader; One is connected in described reader radio frequency unit, and towards the transponder radio frequency unit of described distant transmitter transponder or its downstream subordinate reader.
11. one kind is used to scan the layering rfid system that is positioned at transponder behind the screen, comprise, main reader, at least one distant transmitter transponder, screen, described at least one distant transmitter transponder is in described screen one side, and described main reader is at described screen opposite side, it is characterized in that
Also comprise the subordinate reader, be placed on the described screen to have two antennas, antenna 1 is positioned at main reader one side of described screen, and antenna 2 is positioned at distant transmitter transponder one side of described screen; The transponder radio frequency unit of described subordinate reader is by the reader radio frequency unit mutual transmission signals of described antenna 1 with described main reader or its upstream subordinate reader, and the reader radio frequency unit of described subordinate reader is by the transponder radio frequency unit mutual transmission signals of described antenna 2 with described at least one distant transmitter transponder or its downstream subordinate reader; The information that the reader radio frequency unit of described subordinate reader is collected the transponder radio frequency unit of described at least one distant transmitter transponder or its downstream subordinate reader by described antenna 2, the reader radio frequency unit that transponder radio frequency unit and the described antenna 1 by described subordinate reader sends described main reader or its upstream subordinate reader to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100891016A CN101118588A (en) | 2006-08-03 | 2006-08-03 | RFID reader and system, method and applied system thereof |
| PCT/EP2007/057846 WO2008015194A1 (en) | 2006-08-03 | 2007-07-30 | Rfid reading device and associated rfid system, and method for its operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100891016A CN101118588A (en) | 2006-08-03 | 2006-08-03 | RFID reader and system, method and applied system thereof |
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| CN101118588A true CN101118588A (en) | 2008-02-06 |
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| CNA2006100891016A Pending CN101118588A (en) | 2006-08-03 | 2006-08-03 | RFID reader and system, method and applied system thereof |
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| Country | Link |
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| CN (1) | CN101118588A (en) |
| WO (1) | WO2008015194A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937252A (en) * | 2017-03-31 | 2017-07-07 | 深圳市阿尔艾富信息技术股份有限公司 | A kind of RFID base station units for indoor positioning |
| CN108804965A (en) * | 2018-07-23 | 2018-11-13 | 北京普联恒创科技有限公司 | A kind of RFID tag and system |
| CN109642945A (en) * | 2016-08-31 | 2019-04-16 | 西门子股份公司 | Position-detection sensor and system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008005233A1 (en) * | 2008-01-19 | 2009-07-23 | Mtu Aero Engines Gmbh | Radio module and method for operating a radio module |
| CN103325189A (en) * | 2013-06-28 | 2013-09-25 | 万信方达科技发展(北京)有限责任公司 | Intelligent retail terminal device of information traceback system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790536A (en) * | 1989-01-31 | 1998-08-04 | Norand Corporation | Hierarchical communication system providing intelligent data, program and processing migration |
| US5892441A (en) * | 1996-06-26 | 1999-04-06 | Par Government Systems Corporation | Sensing with active electronic tags |
| US6812824B1 (en) * | 1996-10-17 | 2004-11-02 | Rf Technologies, Inc. | Method and apparatus combining a tracking system and a wireless communication system |
| US7084769B2 (en) * | 2002-01-09 | 2006-08-01 | Vue Technology, Inc. | Intelligent station using multiple RF antennae and inventory control system and method incorporating same |
| US7573370B2 (en) * | 2002-09-05 | 2009-08-11 | Honeywell International Inc. | Method and device for storing and distributing information in an RFID tag |
| US7176797B2 (en) * | 2003-10-31 | 2007-02-13 | Li-Cheng Richard Zai | Method and system of using active RFID tags to provide a reliable and secure RFID system |
-
2006
- 2006-08-03 CN CNA2006100891016A patent/CN101118588A/en active Pending
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2007
- 2007-07-30 WO PCT/EP2007/057846 patent/WO2008015194A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642945A (en) * | 2016-08-31 | 2019-04-16 | 西门子股份公司 | Position-detection sensor and system |
| CN109642945B (en) * | 2016-08-31 | 2023-01-10 | 西门子股份公司 | Position detection sensor and system |
| CN106937252A (en) * | 2017-03-31 | 2017-07-07 | 深圳市阿尔艾富信息技术股份有限公司 | A kind of RFID base station units for indoor positioning |
| CN106937252B (en) * | 2017-03-31 | 2020-08-18 | 深圳市阿尔艾富信息技术股份有限公司 | RFID base station unit for indoor positioning |
| CN108804965A (en) * | 2018-07-23 | 2018-11-13 | 北京普联恒创科技有限公司 | A kind of RFID tag and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008015194A1 (en) | 2008-02-07 |
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