Abstract
RFID is applied widely in many domains. RFID middleware plays an important role in extracting tag information from the reader and forward it to backend application systems. How to avoid system failure and reduce performance degradation in a complex and high volume tags environment is a critical issue for RFID applications. Many researchers use hardware failover to achieve high availability. Some other researchers apply software agents to perform load balance. However, none of them provide a robust solution to the above problems between RFID reader and middleware. This work proposes an intelligent highly available system to RFID middleware. The system uses RFID repository to provide dynamic allocation in different types of readers and maintain task information of middleware. The system also uses the tecnologies of agent negotiation, genetics algorithm, and fuzzy computation to support highly available and load balance for RFID middleware. The system is applied to entrace guard and attendance checking application. The experimental result shows that the system can provide a highly available RFID middleware with high degree of tag identification accuracy.
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