GuardianAngel: An RFID-based indoor guidance and monitoring system

The current ubiquitous presence of RFID technology opens up possibilities for new applications. The RFID enabled indoor pervasive environment is the area of interest for our study. We explore the system requirements for an RFID enabled pervasive system and develop a middleware called GuardianAngel to support a monitoring and guidance system for use in an assisted living environment. This paper describes a prototype of such a system, using real RFID devices in a proof-of-concept to evaluate feasibility and emulated RFID devices to evaluate scalability. Our study illustrates the feasibility of such a system, demonstrating greater than 99% accuracy in situ with a confined testbed, and with above 93% accuracy estimated when emulated in a larger environment.