CN101753434B - Radio frequency identification router and radio frequency identification network system - Google Patents
Radio frequency identification router and radio frequency identification network system Download PDFInfo
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Abstract
The invention puts forward a radio frequency identification router and a radio frequency identification network system. The radio frequency identification router comprises a network control interface, a routing management unit, a channel setting unit, a data storage unit, a data processing unit, a multi-reader management unit and a reader interface. The radio frequency identification router is connected with a plurality of readers via the reader interface, and is connected with other radio frequency identification routers or the radio frequency identification network comprising hosts via the network control interface. In the radio frequency identification network, because hierarchical codes as unique network addresses are assigned to the readers and the radio frequency identification routers, the radio frequency identification router can forward radio frequency identification network data, meanwhile, the radio frequency identification router manages the readers and fulfils the exchange of reader data and radio frequency identification network data, and consequently, the invention solves the problem on how to network and manage a mass radio frequency identification application scenario in an enterprise.
Description
Technical field
The invention belongs to the information electronic applications, specifically, relate to a kind of radio frequency identification router and and radio frequency identification network system.
Background technology
The English RFID (Radio Frequency Identification) that is called for short of radio frequency identification is a kind of non-contact automatic identification technology that utilizes radio-frequency technique to realize.It can realize the fast reading and writing of electronic tag; Its equipment has that volume is little, shape is customizable, long service life, reusable, memory capacity big, can penetrate characteristics such as non-conductive material; And can realize multiple target identification and moving target identification, through with tracking and information shared that combines to realize article in the global range of Internet technology.REID is used for industries such as logistics, manufacturing and service can significantly improve the management and the operational paradigm of enterprise, and reduces circulation cost; Be used for identification and location that rapid batch then can be realized in fields such as identification, asset management, and carry out the long-term follow management as required.The extensive propelling of further improving and using along with technology; The radio frequency identification product cost will reduce rapidly; The industrial chain of its drive will become a rising high tech industrial colony, also will be to promoting the social informatization level, promote sustainable economic development, improve people's living standard, enhancing public security and national defense safety etc. produces wide influence based on the back-up environment construction of REID.Read write line has all played crucial effect as the critical piece in the information in radio frequency acquisition system in radio-frequency recognition system and background network management.
Existing development trend shows with a lot of the analysis, and radio-frequency identification reader/writer will become one of the most intensive network equipment of usefulness in the world easily.The development of read write line technology is rapid, and according to various application scenarios, the read write line of various manufacturers produce has a great difference, diversified dissimilar read write line occurred, like fixedly read write line, handhold read-write device, embedded read write line etc.The disposal ability of each read write line, communications protocol, network control interface and data-interface be all different, and the read write line of number of different types has just constituted isomery read write line network common in the real application systems like this.
The radio-frequency recognition system of real world applications needs different labels, different read write lines according to different demands, and not only the model of product is different, and production firm also maybe be different, and this needs application system must be heterogeneous platform.In the application of present radio frequency identification both domestic and external, from the collection of front end data, to being connected of backend services system, be the mode that adopts the customized software exploitation mostly.In case the front end tag class increases, or the backend services system changes to some extent, all needs coding again, relevant issues such as development efficiency is low, maintenance cost height will be comed one after another.Some solutions merge like programmable logic controller (PLC) (PLC) and read write line, reduce the difficulty of PLC control read write line, the network application that can not effectively solve the applying in radio frequency identification, particularly radio frequency identification equipment of generality.And along with the extensive use of REID, the radio frequency identification network of being made up of a plurality of read write lines appears in the various real application systems more and more at large, and the scale of radio frequency identification network also is increasing.
Heterogeneous platform must integrate the read write line product of different vendor; And the read write line product that is connected on the heterogeneous platform possibly change along with application; Thereby need the Different software development support, use a plurality of different read write lines in fact in many instances and can run into a lot of problems.The problem that a plurality of read write lines are formed the radio frequency identification network shows especially out.Along with deepening continuously of applying in radio frequency identification, the radio frequency identification network architecture that the radio frequency identification network has combined from traditional single read write line to multiple read write line.The introducing of the radio frequency identification network that a plurality of read write lines constitute has also proposed many new challenges, and wherein to write management be key problem wherein for effective networking of read write line and mutiread.So-called read write line networking refers to a plurality of read write lines and constitutes the read write line network jointly, carries out data passes each other with mutual; Mutiread is write management, is meant all or part read write line in the network are configured and manage, and makes the read write line can collaborative work.
Summary of the invention
The objective of the invention is to propose the implementation method that the radio frequency identification network node is a radio frequency identification router; Realize the particularly dynamic group net of read write line of radio frequency identification equipment; Satisfy the application of the extensive radio frequency identification network of a plurality of isomery read write lines of enterprise; For this reason, the present invention provides a kind of radio frequency identification router and radio frequency identification network system.
For reaching said purpose; First aspect of the present invention; A kind of radio frequency identification router is provided, contains: network control interface, routing management unit, channel setting unit, data storage cell, data processing unit, mutiread are write management unit and read write line interface; Network control interface is connected with the radio frequency identification network, network control interface received RF recognition network data, and pass through network control interface and send the radio frequency network data to the radio frequency identification network; Link road is by administrative unit and channel setting unit respectively for the other end of network control interface, and the routing management unit carries out correct path searching and forwarding according to the address to the radio frequency network data that network control interface receives; Routing management unit controls channel setting unit is closed or conducting the path in the network control interface; Data processing unit one end link road is by administrative unit; The data processing unit other end is write management unit with mutiread and is connected; The read write line data that data processing unit is write the management unit reception to the radio frequency network data and the mutiread of the reception of route administrative unit are handled, and data processing unit is data processing centre and the interchange channel that routing management unit and mutiread are write management unit; Data storage cell is connected with data processing unit, the routing table of data storage cell memory address, temporary transient or various data that the permanent storage data processing unit sends; The read write line interface is write management unit with mutiread and is connected, and mutiread is write management unit and sent order to read write line through the read write line interface, receives the data that external reader returns.
For reaching said purpose, second aspect of the present invention provides a kind of radio frequency network system, and this system is made up of main frame, read write line, radio frequency identification router, wherein: comprise a main frame at least, a read write line and a radio frequency identification router; Main frame is the master controller of network system; One or more is arranged; Main frame is connected to radio frequency identification router; Radio frequency identification router is connected to other radio frequency identification router or main frame, and other radio frequency identification router or the main frame of a radio frequency identification router connection can be one or more; The communication of radio frequency identification network system is initiated by main frame; Main frame sends the data of certain format to radio frequency identification router; Radio frequency identification router receives host data; Judge whether to issue the data of itself according to the address of data, be then to receive, otherwise be forwarded to other radio frequency identification router or the main frame of connection according to the address routing table; A plurality of read write lines are connected to radio frequency identification router, the order data that a plurality of read write line received RF identification router are sent; And execution result returned to radio frequency identification router.
Beneficial effect of the present invention is: 1, having proposed the radio frequency identification network node is the implementation method of radio frequency identification router; A kind of radio frequency identification network system has been proposed; Realize the dynamic group net of radio frequency identification equipment, satisfied the application of the extensive radio frequency identification network of a plurality of isomery read write lines of enterprise.2, the Internet today of popularizing; Enterprise can pass through the Internet interaction data timely, but compares with the Internet, and the read write line networking has a lot of characteristics of oneself; Especially be embodied in intensive application and a plurality of read write line management aspect of a plurality of read write lines; Radio frequency identification router of the present invention satisfies the networking needs simultaneously as network components and read write line control assembly, has realized the unified management of many read write lines simultaneously.3, each radio frequency identification router and each read write line are distributed unique coding, be used for network and identify, constitute the address path table, simple possible and can being connected with existing network satisfies the higher layer applications of enterprise.
Description of drawings
Fig. 1 is radio frequency identification router and specifically realizes sketch map.
Fig. 2 is a radio frequency identification network architecture sketch map.
Fig. 3 is a radio frequency identification router exemplary operation method sketch map.
Embodiment
Specify each related detailed problem in the technical scheme of the present invention below in conjunction with accompanying drawing.Be to be noted that described embodiment only is intended to be convenient to understanding of the present invention, and it is not played any qualification effect.
When enterprise application constantly enlarges; The application of multiple read write line, extensive read write line are used and have been become popular tendency; Isomery radio frequency identification network system has been formed in the application of multiple read write line, and a kind of radio frequency identification router 3 and radio frequency identification network system 1 that the present invention proposes are under the radio frequency identification network architecture; Radio frequency identification router 3 has realized the dynamic group net and the read write line network management of radio frequency identification equipment as the basic element of character of radio frequency identification networking equipment.In order to realize to many read write line 4 unified managements, each read write line 4 is distributed unique coding, be used for the sign of network read write line 4, radio frequency identification router 3 has the geocoding with read write line 4 consolidation forms.Radio frequency identification router 3 inside have data storage cell 33; Information such as a plurality of read write lines 4 addresses that the own address of memory address routing table, radio frequency identification router 3 is connected with radio frequency identification router 3; Radio frequency identification router 3 is formed radio frequency identification network system 1 through radio frequency identification router 3 or main frame 2 that network control interface 31 connects other; Anchor-frame form through regulation; Realize the data passes of radio frequency identification network system 1, the approach of flowing through of data comprises the data passes between data passes, read write line 4 and the read write line 4 between read write line 4 and the main frame 2, because the data format of read write line not all is identical; So need data processing unit 34 to carry out data processing, accomplish the mutual of radio frequency identification network data and read write line data.Radio frequency identification router 3 utilizes mutiread to write the cooperation management that management unit 35 realizes a plurality of read write lines 4 simultaneously, reads the configuration of read write line 4, the action of the single or a plurality of read write lines 4 of control, and the result is stored.
The said address different separately geocodings that to be radio frequency identification router 3 have with read write line 4, radio frequency identification router 3 has the unique address coding of itself, and read write line 4 also has the unique address coding of itself; And the geocoding of radio frequency identification router 3 and read write line 4 is a consolidation form.
The address of a plurality of read write lines 4 that said radio frequency identification router 3 addresses own are connected with radio frequency identification router 3 is stored in separately respectively in the subelement separately of data storage cell 33.
Said address path table is the routing table of setting up according to read write line 4 addresses; The content of address path table be read write line 4 addresses corresponding radio frequency identification router 3 addresses that will transmit; The address path table is pointed out next radio frequency identification router 3 addresses that the data of needs forwarding will arrive; If issue the data of this radio frequency identification router 3, do not transmit direct receipts.
Read write line interface 36 is cable data interfaces, or wireless data interface; Said cable data interface is RS232 interface, RS485 interface, USB interface, Ethernet interface, and said wireless data interface is wireless lan interfaces, infrared interface, GSM interface, and described these interfaces can mix use simultaneously; Read write line interface 36 connects a read write line 4 or connects a plurality of read write lines 4.
The data of radio frequency identification Network Transmission have fixing frame format; A frame comprises source address, destination address, data division and check part composition at least; Source address and destination address include only the address of read write line 4, or address two parts of the address of read write line 4 and radio frequency identification router 3.
Read write line interface 36 also can expand to the radio frequency identification equipment interface, can connect on-the-spot common equipment such as the radio frequency identification that comprises read write line 4, transducer, bar code reader 12 or printer.These equipment and read write line 4 are connected to radio frequency identification router 3 jointly, by radio frequency identification router 3 unified managements.Accordingly, mutiread is write management unit 35 and is expanded to the radio frequency identification equipment administrative unit.
Radio frequency identification network using level coding scheme; Address part in the radio frequency identification network data comprises the address of radio frequency identification router 3 and the address of read write line 4; One comparatively simple proposal be that the address is divided into two parts; A preceding part is the address of radio frequency identification router 3, and a back part is the address of read write line 4.Certainly as a possibility, the address that the user also can only use read write line 4 is as address part.
The radio frequency identification router 3 that the present invention proposes is network nodes under the radio frequency identification network application scene, and radio frequency identification router 3 is main contents of the present invention as network node.But notice that a plurality of radio frequency identification router 3 connect and compose radio frequency identification network system 1 in the application scenarios, the structure of radio frequency identification network system 1 and network data form and pass-through mode also are the contents that the present invention sets forth.The composition of radio frequency identification network comprises radio frequency identification router 3, read write line 4 and main frame 2, and the forwarding of radio frequency identification network data can take directly to transmit or store the mode of transmitting.
The read write line interface 36 of radio frequency identification router 3 of the present invention can be supported all types of read write lines, comprises low frequency, high frequency, hyperfrequency etc.
Mutiread of the present invention is write the read write line network management that the management function is whole network, and adopt two-tier system to carry out mutiread and write management, at first be network layer; Promptly between the radio frequency identification router 3 and the data passes between radio frequency identification router 3 and the main frame 2, transmission be the data of anchor-frame form, be convenient to unified management; The upper layer application of main frame 2 can be operated to concrete read write line 4; As the radio frequency parameter of a read write line 4 is set, also can be directed against radio frequency identification router 3 issue an orders, as read an electronic tag in radio frequency identification router 3 scopes; The read write line address part is a specific address that does not have the actual physics meaning in the Frame at this moment; All read write lines 4 that promptly a radio frequency identification router 3 connected are operated, and secondly are the radio frequency identification router layers, refer to the data passes between radio frequency identification router 3 and the read write line that is connected 4; The order of radio frequency identification router 3 received RF recognition networks; Carry out analysis judgment, convert the data format of read write line 4 communications into, the concrete read write line 4 of control connection carries out concrete operations; Be radio frequency identification router 3 and the mutual data of read write line 4, have different forms to different read write line 4.Here single read write line administrative unit 35 comprises all operations to read write line 4, comprise the configuration of read write line 4 running parameters such as radio-frequency power etc. and read, the reading and write etc. of data.
The design of radio frequency identification network data frame of the present invention: the Frame of transmission should have unified format in radio frequency identification network system 1; At first seek suitable path because of needs, and return results, so data should contain destination address and source address; There is storage this address in radio frequency identification router 3; Radio frequency identification router 3 storage should be the routing table of whole network completely, perhaps the address of the next radio frequency identification router 3 that will transmit guarantees to find the destination.Need certain method of calibration besides and guarantee that transfer of data is accurate, the data field that has enough capacity in addition simultaneously is used for the transmission of a large amount of radio frequency identification incidents.
Fig. 1 is radio frequency identification router 3 and specifically realizes sketch map, comprising: network control interface 31, routing management unit 32, data storage cell 33, data processing unit 34, mutiread are write management unit 35, read write line interface 36 and channel setting unit 37.
Radio frequency identification router 3 when being connected to radio frequency identification network system 1 by main frame 2 automatically or user's manual allocation unique address coding.When read write line 4 is connected to radio frequency identification router 3 through read write line interface 36; Mutiread is write management unit 36 and is found that read write line 4 inserts; And send data to routing management unit 32, and read write line 4 unique address coding is distributed in routing management unit 32, and the address of read write line 4 also can the user be set.Radio frequency identification router 3 is judged the data address that receives from network control interface 31 through routing management unit 32; If judging the address is the address of radio frequency identification router 3 self address or the read write line 4 that connects through read write line interface 36; Then send the data to data processing unit 34; If judging the address is read write line 4 addresses on other radio frequency identification router 3 or other radio frequency identification router 3; Then routing management unit 32 is according to the address path table in the data storage cell 33, and the control access is provided with unit 37, is transmitted to nearest radio frequency identification router 3 or the main frame 2 that connects in the address path table through network control interface 31.Resolve the order data that routing management unit 32 receive and control concrete read write line 4 work by data processing unit 34.The read write line 4 that mutiread is write 36 pairs of a plurality of connections of management unit carries out unified management, and perhaps control concrete read write line 4 carries out write operation to certain electronic tag to certain electronic tag data that reads simultaneously such as a plurality of read write lines 4 of filtration.Main frame 2 can specifically be controlled to some read write lines 4 through radio frequency identification network system 1 simultaneously.Read write line 4 running hours data amounts are bigger, can be stored in the data storage cell 33, wait to be checked or upload.
Fig. 2 is radio frequency identification network system 1 structural representation.Comprise main frame 2, radio frequency identification router 3 and read write line 4 for radio frequency identification network system 1 among the figure.Main frame 2 is servers that enterprises has strong management function and processing capacity, is used for the whole radio frequency identification network in management enterprise inside.One or more radio frequency identification router 3 can be arranged in the radio frequency identification network system 1 as required; The read write line 4 that connects simultaneously also can be taked different read write line 4 according to the scene difference; Said read write line interface 36 is not own to read write line 4 separately; But radio frequency identification equipment interface; Can intercell connector font code read write line 12 or the equipment that cooperates of printer etc. and read write line 4; It is to be noted that radio frequency identification router 3 does not have whole Network Management function, the function of radio frequency identification router 3 is a plurality of read write lines 4 that described path searching and management connect, so system needs the whole radio frequency identification network system 1 of at least one main frame 2 unified managements.Like a typical connected mode is to connect through Ethernet, uses the IP address as read write line 4 and radio frequency identification router 3 unique coded addresses, in each read write line 4 and radio frequency identification router 3, is equipped with ethernet circuit and networks and transfer of data.
Fig. 3 is a radio frequency identification router exemplary operation method sketch map.The method here representes with block diagram form, it will be appreciated by those skilled in the art that and understands, and method can be expressed as a series of action and state.
Step 301: radio frequency identification router is started working;
Step 302: radio frequency identification router 3 receives the network data of radio frequency identification network system 1, and the network data here is that main frame 2 directly sends.
Step 303: radio frequency identification router 3 judges whether to be its data according to the address in the data, and the judgement here can adopt hardware to realize, also can adopt software processes.If its data then gets into data processing unit 34.If not then, according to these data of routing table packing forwarding.
Step 304: radio frequency identification router 3 is resolved the data that receive, and is judged as which kind of order or data then, and the order data that is converted into read write line 4 communication formats through data processing unit 34 sends to mutiread and writes management unit 35.Like order possibly be certain concrete read write line 4 mode of operation to be set for not stopping reading of data, reads data instant data are returned.
Step 305: radio frequency identification router 3 has mutiread and writes management unit 35; Promptly when read write line 4 is connected to radio frequency identification router 3; Radio frequency identification router 3 is about to read write line 4 and includes range of management in, and mutiread is write a plurality of read write lines 4 common orders of accomplishing data processing unit 34 transmissions of management unit 35 control connections.
Step 306: mutiread is write the data that management unit 35 receives electronic label read/write 4, and the result is carried out sending to data processing unit 34 after the basic handling; The execution result of read write line 4 returns to radio frequency identification router 3, and data processing unit 34 is perhaps uploaded these execution results according to the difference storage of initial command.
Step 307: the packing data that radio frequency identification router 3 is sent needs becomes the data of radio frequency identification network 1 form, and sends these data according to routing table.
Step 308: radio frequency identification router quits work.
The above; Be merely the embodiment among the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with this technological people in the technical scope that the present invention disclosed; Conversion or the replacement expected can be understood, all of the present invention comprising within the scope should be encompassed in.
Claims (10)
1. a radio frequency identification router is characterized in that, contains: network control interface, routing management unit, data storage cell, data processing unit, mutiread are write management unit, read write line interface and channel setting unit;
Network control interface is connected with the radio frequency identification network, network control interface received RF recognition network data, and pass through network control interface and send the radio frequency identification network data to the radio frequency identification network;
Link road is by administrative unit and channel setting unit respectively for the other end of network control interface, and the routing management unit carries out correct path searching and forwarding according to the address to the radio frequency identification network data that network control interface receives; Routing management unit controls channel setting unit is closed or conducting the path in the network control interface;
Data processing unit one end link road is by administrative unit; The data processing unit other end is write management unit with mutiread and is connected; The read write line data that data processing unit is write the management unit reception to the radio frequency identification network data and the mutiread of the reception of route administrative unit are handled; Data processing unit is data processing centre and the interchange channel that routing management unit and mutiread are write management unit, accomplishes the mutual of radio frequency identification network data and read write line data;
Data storage cell is connected with data processing unit; The address information of a plurality of read write lines that the own address of the routing table of data storage cell memory address, radio frequency identification router is connected with radio frequency identification router, temporary transient or various data that the permanent storage data processing unit sends;
The read write line interface is write management unit with mutiread and is connected; The read write line interface connects a read write line or connects a plurality of read write lines; Mutiread is write management unit and is sent order to read write line through the read write line interface, receives the data that read write line returns, and mutiread is write the cooperation management that management unit realizes a plurality of read write lines; Read the configuration of read write line, the action of the single or a plurality of read write lines of control, and the result is stored;
The action and the state of radio frequency identification router are described below:
Step 301: radio frequency identification router is started working;
Step 302: radio frequency identification router receives radio frequency identification network of network data;
Step 303: radio frequency identification router judges whether to be its data according to the address in the data, if its data then gets into data processing unit; If not the network data that then receives according to routing table packing forwarding;
Step 304: radio frequency identification router is resolved the data receive, is judged as which kind of order or data then, and the order data that is converted into the read write line communication format through data processing unit sends to mutiread and writes management unit;
Step 305: radio frequency identification router has mutiread and writes management unit; Promptly when read write line is connected to radio frequency identification router; Radio frequency identification router is about to read write line and includes range of management in, and mutiread is write a plurality of read write lines of management unit control connection and accomplished the order that data processing unit sends jointly;
Step 306: mutiread is write the data that management unit receives read write line, and the result is carried out sending to data processing unit after the basic handling; The execution result of read write line returns to radio frequency identification router, and data processing unit is perhaps uploaded these execution results according to the difference storage of initial command;
Step 307: the packing data that radio frequency identification router is sent needs becomes the data of radio frequency identification network format, and sends the data that are packaged into the radio frequency identification network format according to routing table;
Step 308: radio frequency identification router quits work.
2. radio frequency identification router as claimed in claim 1 is characterized in that: the read write line interface is the cable data interface, or wireless data interface; Said cable data interface is RS232 interface, RS485 interface, USB interface, Ethernet interface, and said wireless data interface is wireless lan interfaces, infrared interface, GSM interface, and described these interfaces mix use simultaneously.
3. radio frequency identification router as claimed in claim 1 is characterized in that: network control interface is an Ethernet interface, or field-bus interface, and said field-bus interface is CAN interface, Profibus-DP interface.
4. a radio frequency identification network system is characterized in that, this system is made up of main frame, read write line, radio frequency identification router as claimed in claim 1, wherein:
At least comprise a main frame, a plurality of read write lines and a radio frequency identification router;
Main frame is the master controller of network system; One or more is arranged; Main frame is connected to radio frequency identification router; Radio frequency identification router is connected to other radio frequency identification router or main frame, and other radio frequency identification router or the main frame of a radio frequency identification router connection can be one or more;
Data passes is being carried out between the radio frequency identification router and between radio frequency identification router and the main frame, transmission be the data of anchor-frame form; The communication of radio frequency identification network system is initiated by main frame; Main frame sends the data of certain format to radio frequency identification router; Radio frequency identification router receives host data; Judge whether to issue the data of itself according to the address of data, be then to receive, otherwise be forwarded to other radio frequency identification router or the main frame of connection according to the address routing table;
A plurality of read write lines are connected to radio frequency identification router, the order data that a plurality of read write line received RF identification router are sent; And execution result returned to radio frequency identification router.
5. radio frequency identification network system as claimed in claim 4; It is characterized in that: the said address different separately geocodings that to be radio frequency identification router have with read write line; Radio frequency identification router has the unique address coding of itself, and read write line also has the unique address coding of itself; And the geocoding of radio frequency identification router and read write line is a consolidation form.
6. radio frequency identification network system as claimed in claim 4 is characterized in that: the address of a plurality of read write lines that the address of said radio frequency identification router itself is connected with radio frequency identification router is stored in separately respectively in the subelement separately of data storage cell.
7. radio frequency identification network system as claimed in claim 4; It is characterized in that: said address path table is the routing table of setting up according to the read write line address, and the address path table is pointed out next radio frequency identification router or the host address that the data of needs forwarding will arrive.
8. radio frequency identification network system as claimed in claim 4 is characterized in that: the read write line interface is the cable data interface, or wireless data interface; Said cable data interface is RS232 interface, RS485 interface, USB interface, Ethernet interface, and said wireless data interface is wireless lan interfaces, infrared interface, GSM interface, and described these interfaces mix use simultaneously; The read write line interface connects a read write line or connects a plurality of read write lines.
9. radio frequency identification network system as claimed in claim 4 is characterized in that: network control interface is an Ethernet interface, or field-bus interface, and said field-bus interface is CAN interface, Profibus-DP interface.
10. radio frequency identification network system as claimed in claim 4; It is characterized in that: the data of radio frequency identification Network Transmission have fixing frame format; A frame comprises source address, destination address, data division and check part at least; Source address and destination address include only the read write line address, or read write line address and radio frequency identification router address two parts.
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| CN103049772B (en) * | 2012-12-11 | 2016-08-10 | 上海大学 | Indoor positioning based on passive radio frequency identification technique follows the tracks of system and method |
| CN104053163B (en) * | 2014-06-24 | 2017-11-03 | 无锡北邮感知技术产业研究院有限公司 | A kind of network-building method based on the heterogeneous wireless network for calculating processing |
| CN106294247A (en) * | 2016-10-20 | 2017-01-04 | 中山领创网络科技有限公司 | The connection system of a kind of multiple antennas rfid interrogator and many computers and method of attachment |
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| CN1588422A (en) * | 2004-09-27 | 2005-03-02 | 北京维深电子技术有限公司 | Electronic label control system |
| CN101038631A (en) * | 2007-04-19 | 2007-09-19 | 西安电子科技大学 | Embedded RFID card identification portable device and identification method |
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| CN101753434A (en) | 2010-06-23 |
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