A Semantic Enhanced Service Proxy Framework for Internet of Things

This paper proposes a semantic enhanced service proxy framework for internet-of-things cloud. The framework exposes IoT cloud's smart objects as services by virtue of service orientation and virtualization. The framework uses an adapter oriented approach to address the issue of connectivity with different types of smart objects. We employ a query based service re-route mechanism to decouple service provider and service consumer. We propose micro-formats based service description template for associating smart object location with its service end-point. As a step toward enhancing smart objects service publication and discovery, we adopt a service advertisement approach within the IoT cloud perimeter that automates service publication and discovery process. Our proof-of-concept prototype implementation shows that the existing technology enablers are capable of realizing the service oriented IoT vision, which does not only plug smart objects into the internet but also link the information resided in smart objects into the fabric of the web.