CN201259678Y - Flexible and general RFID system - Google Patents

Abstract

A flexible universal RFID system realizes the system functions through a middleware/communication server and the upper application and mainly comprises a plurality of RFID readers, a middleware/communication server, an application server and a database server; the RFID readers accesses the system through serial port access, Ethernet access or WiFi wireless access. The middleware/communication server is used to exchange and process data and transfer the processed data to the application server through TCP channel, wherein, the data exchange means to exchange the acquired data with the reader accessed through different ways; the data processing means to filter the data based on user settings and business rules; and the application server receives the processed data transferred by the middleware/communication server and makes further processing of the data to achieve the user-defined applications. The application server adopts a hierarchical structure and comprises a communication module layer, a business logic layer, a data access layer, an external interface layer, a control layer and a representation layer.

Description

A kind of agile and all-purpose rfid system

Technical field

The utility model relates to RFID (radio-frequency (RF) identification) technology, is specifically related to a kind of agile and all-purpose rfid system.

Background technology

RFID (radio-frequency (RF) identification) is a kind of contactless automatic identification technology, it is by the automatic recognition objective object of radiofrequency signal and obtain related data, identification work need not manual intervention, wireless version as bar code, the RFID technology has the not available waterproof of bar code, antimagnetic, high temperature resistant, long service life, read that distance is big, data can encrypt, store that data capacity is bigger, the canned data change waits advantage freely on the label, and its application will bring revolutionary variation to industries such as retail, logistics.

Mostly there are several general problems in the application of RFID at present: 1, single producer's read write line inserts, a general project all adopts the read write line of a producer, this has also caused the extendability of upper layer application not strong, increases new producer's read write line, may need rewriting program; 2, single access way, application program is all only supported a kind of agreement usually.The access way of rfid interrogator mainly contains several modes such as serial ports access, Ethernet access, WiFi access, USB access at present; 3, code reusability is not high.To upper application software, all there is the not high problem of reusability from the bottom communication module; 4, rfid interrogator does not possess the data screening function, and all needing to connect application software could work; 5, real time data shows and data query separately realization usually in the RFID application scenario.

Summary of the invention

The utility model purpose is to provide a kind of agile and all-purpose rfid system to improve the real time data display capabilities of this system for the compatible of devices from different manufacturers and different access waies and raising rfid system.

A kind of agile and all-purpose rfid system that the utility model provides comprises:

With a plurality of rfid interrogators of serial ports access way, Ethernet access way or WiFi wireless access way connecting system, be used to gather the RFID data and the data of the described collection unified data-interface by corresponding adapter is sent to middleware/communication server;

Middleware/communication server, be used to carry out exchanges data and data processing, and the data after the data processing are passed through the TCP channel transfer give application server, described exchanges data refers to that the read write line that inserts with different modes exchanges image data, and data processing is meant according to user's setting and business rule data are screened;

Application server, the data after the processing that the reception middleware/communication server transmits also are for further processing to realize user-defined application;

Database server is used to receive and store the deal with data from middleware/communication server and application server;

Wherein, described application server adopts hierarchy, comprises communication module layer, Business Logic, data access layer, external interface layer, key-course and presentation layer.

Wherein, described middleware/communication server further comprises:

Primary module is used to read the data from rfid interrogator, sends it to data processing module, and the data after the screening that data processing module is returned send communication module to;

Data processing module be used for according to setting rule the data of coming autonomous module being screened, and the data after will screening is returned primary module;

The read write line Configuration Manager, it carries out initialization by the configuration file that the read-write user writes to all read write lines that relate to and agreement;

Communication module is set up reliable TCP passage with application server and is realized and the communicating by letter of application server.

Wherein, described different access way comprises serial ports access, Ethernet access and WiFi wireless access etc.

Wherein, described application program adopts the J2EE framework, adopts the Struts+Hibernate+Spring technological architecture.

Wherein, described presentation layer adopts the Ajax technology to carry out instant Refresh Data.

The utility model can improve the real time data display capabilities of system for the compatible of devices from different manufacturers and different access waies and raising rfid system.

Description of drawings

Fig. 1 is middleware/communication server block diagram;

Fig. 2 is the upper layer application block diagram.

Embodiment

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

The concrete RFID application system function of implementing is as follows: every assets all are attached with the electronic tag with unique ID number sign indicating number and the corresponding assets relevant information of storage, when these assets enter RFID antenna identified region, antenna is by sending microwave signal active electron tag circuit, simultaneously, electronic tag sends echoed signal, the two carries out bidirectional data exchange, thereby read write line obtains the relevant information of assets, in order to judge whether Rational flow of assets, can Realtime Alerts notify managerial personnel to check accordingly and handle thereby note abnormalities, write down the assets region simultaneously.

In general, the RFID The Application of Technology is divided into two classes: a class is the item tracing management towards historical record; Another kind of is real-time monitoring management.Technological frame of the present invention combines two kinds of application, makes system have the functions and benefits of the two concurrently.

In agile and all-purpose rfid system of the present utility model, described middleware/communication server connects a plurality of rfid interrogators by the uniform data interface, described rfid interrogator is used to gather the RFID data, the inevitable network ability that all will enter of the data of rfid interrogator is meaningful, for the read write line of serial mode interface, adopt the serial server access network; For the Ethernet mode, its direct access network; RFID read-write hand-held set can pass through the WiFi access network.Configuration makes all read write lines all become the network equipment that unique ip address is arranged, and makes things convenient for system to obtain data.The uniform data interface that adapter provided by correspondence behind the dissimilar read write line access networks is connected to described middleware/communication server.

Described middleware/communication server can be realized the exchange of data and the processing of data.Exchanges data mainly is meant the image data of obtaining different read write lines, and data processing mainly is according to user's setting and business rule data to be screened.Particularly, to unified management and the configuration of the read write line DLL of many producers, configuration file can offer the convenient modification of final user.Insert by the read write line of agreements such as serial server, WiFi multi-protocols.Described RFID middleware/communication server block diagram as shown in Figure 1, it comprises uniform data interface, data processing module, primary module, read write line Configuration Manager, log management module and communication module.

The read write line Configuration Manager is responsible for all read write lines are managed, and the read write line Configuration Manager carries out initialization by the configuration file that the read-write user writes to all read write lines that relate to and agreement.Be divided into fixed and hand-held according to the big class of agreement.Realize connecting read write line, antenna is set, obtains operations such as data with different adapter class respectively, and form unified interface and offer the uniform data interface module.Can from all read write lines, take out RFID reading and writing and configuration operation commonly used by this interface module, isolate the isomerism of read write line and agreement.If a newly-increased class read write line only needs to increase corresponding D LL and adapter class just can be finished, needn't revise other modules.

The main thread of described middleware/communication server comprises primary module and data processing module.Need synchronously the interaction data that need not stop between the thread.What primary module did not stop obtains data from available read write line, and data and rule are sent to data processing module in the lump, and data processing module is passed primary module back after screening according to rule again.

Described middleware/communication server is set up reliable TCP passage by its communication module and application server and is realized and the communicating by letter of application server, and has well ensured the real-time and the security of data.Described communication module adopts the mode of isochronous queue, and the transmission data of not stopping guarantee the promptness of data, but because data have been carried out filtering and adopting the Buffer Pool technology, therefore can not cause network congestion.

Described middleware/communication server is used for shielding the isomerism of otherness and the operating system and the procotol of network hardware platform, and application software can be run on the different platform smootherly.Its main effect is regulating load balance, connection management and scheduling, and the performance of enterprise-level application is increased dramatically, and satisfies enterprise demand.

Fig. 2 is the upper layer application block diagram, described upper layer application server software adopts hierarchy, realize Data Receiving, separating of filtration and service logic, make system hierarchy clear, the division of labor of each layer is clear and definite, has all guaranteed the versatility and the reusability of system to greatest extent to the highest presentation layer from the communication module of the bottom.This also is another emphasis part of the present invention.

Upper level applications is deployed on the application server.The emphasis of application program is that corresponding business is embodied, and with regard to this example, exactly assets is managed.Therefore must comprise the Back ground Information of assets basic function such as manage, inquire about, register, follow the trail of, make an inventory.All business basic all from the valid data that obtain from middleware/communication server.Wherein, application server all can be connected with database server with middleware/communication server, carries out the renewal of data and calls.

The upper layer application server software adopts J2EE framework, Struts+Hibernate+Spring technological architecture.System is divided into communication module layer, Business Logic, data access layer, external interface layer, key-course and presentation layer.Wherein Struts is divided into presentation layer with system, three levels of model layer and key-course, and Struts is responsible for the mutual coordination between three levels and calls, and model layer is used the JavaBean technology, in the model layer Hibernate is transferred in the operation of database and realizes.Its assembly of Spring framework has supports internationalization, action listener, transaction management, supports introspection reflection and AOP technology, is easy to and characteristics such as Mail, JNDI and database be integrated.And Spring further encapsulates Hibernate, is responsible for the interface of system and describes, affairs control.

As shown in Figure 2, in communication module, mainly be to set up the data of obtaining that isochronous queue do not stop, and data are distributed.Therefore at first must realize communication module, at Business Logic data be handled then.Store database if desired into, can call database interface and finish, show at contact bed if desired, so just need find the View of appointment to show by key-course, and by generating the result who needs in the browser in the Http agreement.

From functional plane, it substantially all is that 4 kinds of functions are used that RFID uses: data query, data response in time, label initialization or write operation, with the interface of other system etc.Specific to these examples of implementation, be exactly assets essential information, service recorder inquiry; The assets discrepancy that breaks the rules is reported to the police; When assets come into operation and the binding of label; Interface with the SAP system.

Use from these 4 functions more below and explain concrete application of the present utility model.

For data query, by the mechanism that Hibernate provides, can well finish inquiry, and finish the demonstration of data by Struts database; Realize refreshing immediately of page part element by asynchronous mode, just utilize the Ajax technology, realize timely data response function, because the TCP mode is adopted in data communication, so data interaction speed is secure; For the write operation of label, this is the part of unique reverse communication of needs, be exactly to arrive middleware/communication server by application program generation data, thus the write data of finishing, by the protocol command rreturn value, to judge whether to write success; And with the interface of SAP system, need Business Logic to finish, all is the synchronous operation of finishing between the database usually.The Model layer mainly is the problem of calling mutually between communication module, AIM, the database interface module.For timely data presentation, utilize the Ajax technology well to realize timely Refresh Data, also just overcome the traditional drawback that can only use C/S to realize that in time refreshes.

In addition, the J2EE technological frame itself that the present invention adopts has good cross-platform performance simultaneously, good network communication and public service member have the support that outstanding security service performance and extendability have obtained numerous software developers simultaneously, are to satisfy similar Managed Solution demand fully.Simultaneously native system has stronger scalability, associativity and extendability, adapts to the needs of following professional and technical development, can well transplant and Application and Development once more.

The above is preferred embodiment of the present utility model only, is not limited to the utility model, all any modifications of being made within the present invention spirit and principle, is equal to replacement and improvement etc., all is contained within the protection domain of the present utility model.

Claims (1)

1, a kind of agile and all-purpose rfid system comprises:

With a plurality of rfid interrogators of serial ports access way, Ethernet access way or WiFi wireless access way connecting system, be used to gather the RFID data and the data of the described collection unified data-interface by corresponding adapter is sent to middleware/communication server;

It is characterized in that also comprising:

Middleware/communication server, be used to carry out exchanges data and data processing, and the data after will handling are given application server by the TCP channel transfer, described exchanges data refers to that the read write line that inserts with different modes exchanges image data, and data processing is meant according to user's setting and business rule data are screened;

Application server, the data after the processing that the reception middleware communication server transmits also are for further processing to realize user-defined application;

Database server receives and stores the deal with data from middleware/communication server and application server;

Wherein, described application server adopts hierarchy, comprises communication module layer, Business Logic, data access layer, external interface layer, key-course and presentation layer.

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