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Classification and characteristics of RFID middleware

Looking at the current variety of RFID applications, the first question companies want to ask is: "How do I connect existing systems to these new RFID readers?" The essence of the problem is the problem of enterprise applications and hardware interfaces. Therefore, permeability is the key to the entire application. Properly capturing data, ensuring the reliability of data reads and efficiently transferring data to back-end systems are issues that must be considered. The traditional application and application data transparency is solved through the middleware architecture, and various Application Server applications are developed. Similarly, middleware architecture design solutions are also an integral part of RFID applications. A very important core technology.


RFID middleware acts as an intermediary between RFID tags and applications. A set of general purpose application programming interfaces (APIs) provided by the middleware on the application side can be connected to the RFID reader to read the RFID tag data. Thus, even if the database software or the back-end application storing the RFID tag information is replaced or replaced by another software, or the type of the read-write RFID reader/writer is increased, the application side is not required to be modified, and many-to-many connection maintenance is omitted.

RFID middleware is a message-oriented middleware (MOM). Information is transmitted from one program to another in the form of a message. Information can be transmitted asynchronously, so the sender does not have to wait for a response. Message-oriented middleware not only includes the ability to communicate information, but also the ability to interpret data, security, data broadcasts, error recovery, locate network resources, find cost-compliant paths, determine messages and prioritize extensions, and debug extended services. 

RFID middleware can be divided into two types from architecture:
Application-centric (Application Centric)
Use the API provided by the RFID Reader vendor to directly write the Adapter of a specific Reader to read the data in the Hot Code mode and transfer it to the application or database. The backend system implements the purpose of the backend system or service connection.

Architecture-centric (Infrastructure Centric)
With the increasing complexity of enterprise application systems, enterprises can not load Adapter for each application in HotCode mode, and at the same time face the problem of object standardization, enterprises can consider the RFID middleware of the standard specifications provided by the manufacturer. In this way, even if the database software storing the RFID tag information is replaced by another software, or the type of the RFID reader that reads and writes the RFID tag is increased, the application side can cope without modification.
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