Smart sensor architecture for mobile-terminal-centric ambient intelligence

This study is about developing an open architecture platform for implementing mobile-phone-centric ambient intelligence. In the proposed sensor network architecture, a mobile phone acts as a central node hosting applications and connecting a local sensor network to back-end servers in the internet. The architecture includes a context awareness layer that abstracts sensor measurements into context atoms through rule-based reasoning and notifies changes in atoms to local and remote applications. The technologies used in the architecture include Simple Sensor Interface (SSI) protocol, nanoIP and low-power short-range radios. The architecture has been implemented and successfully demonstrated using several applications with a commercially available mobile phone with add-on electronics.