Section: New Results

Interactions between connected objects in a Smart Building

Participants : Adrien Capaine, Yoann Maurel, Frédéric Weis [contact] .

Tacoma group is focussed on the conception and implementation of innovative services for the Smart Home/Building. The range of considered services is broad: from "optimizing the energy consumption" to "helping users to find their way in a building". One of our goals is to build a pervasive platform with constrained performance and cost [7] , without disrupting existing spaces. Within this idea, we explored in 2015 the services provided by different modes of interaction in a physical space between neighboring objects, and also between an object and a nearby user.

More precisely, we conducted some experiments with LEDs. Instrumented via a short distance radio interface, a lighting device becomes an unobtrusive connected object that is easy to integrate to a mesh network. A relevant aspect of this platform is the consideration of potential conflicts in data access offered by the connected objects. One of the first scenarios we considered is to operate an LED-based light path to guide the evacuation of a building in the case of a fire alarm. When our objective is to multiply the uses of LED devices ("go beyond lighting", see section 9.1.2 ), the question is then the priority of access to resources offered by the platform distributed in the environment. Specifically, we addressed the following issues (similar to some of the issues presented in section 3.2 ):

• How to prioritize the lighting functions (classic) and occasional (but priority) uses of the LED to help in the care of a fire alarm?

• How do you prioritize access to the objects and/or resources that carry these items?