Since few years, several applications are proposed on mobile devices. However, these applications are not aware of their physical environment. The emergence of wireless sensors, able to monitor their close environment, can provide this service to such applications. This implies an exchange of information between sensors and software components, but they do not use the same communication mode (different protocols, different data structures). In this paper, we are interested in the design of multimedia flow in this type of sensors. We propose a unique component model that enables collaboration between different components without knowing if there are hardware or software and we also propose different mechanisms to transform data between such heterogeneous components.