Unified device access in home automation environment

This paper provides a solution for overcoming two big problems that occurred as a consequence of Internet of Things´ expansion. First one is generalization of devices of same type due to different communication protocol or manufacturer. Second one is problem of multifunctional devices and their presentation to the user. This paper introduces three concepts that cover the needs of these problems, while making implementation of the whole system easier and more generic. Examples and specific utilization of concepts on these problems are demonstrated.