Semantic interoperability in a heterogeneous smart lighting system

Smart spaces typically consist of collaborating heterogeneous nodes with various resource capacities, e.g. processing, memory, storage, energy capabilities. Low capacity nodes can operate using very simple protocols, allowing them to provide and consume only simple services, as opposed to devices with higher capacity, which are not limited by such constraints. Providing seamless connection and collaboration between low and high capacity nodes, i.e. interoperability, remains a challenge. This paper presents an approach for interoperability among nodes of a smart lighting system via a gateway node considering nodes of two platforms: low capacity wireless light sensors and actuators on the one hand and high capacity Smart-M3 nodes on the other hand. The gateway node is able to communicate over heterogeneous networks using different communication protocols, transferring light model information between the smart space nodes.