A wireless network of sensors (WSN) serves the need for distributed monitoring of the interior and exterior environment of the house. The sensors support the decision-making layer and assist the efficient management of the resources. The types and the positioning of the sensors in the prototype, as well as their sampling rates are listed in the tables and figures, on the right.

The optimization core receives data from the sensors and uses the house devices as it would do a house resident. For example, the adjustment of the tinting levels of the programmable windowpanes on the south façade permits the regulation of solar exposure based on the seasonal conditions and the preferences of the inhabitants.

Based on the feedback that the sensors provide to the control the systems of the house interchangeably attain autonomous, responsive and interactive modes of operation in reply to the changing environmental conditions and the preferences of the inhabitants.

In the autonomous mode the house interior adapts to the environmental conditions with objective to maintain the desirable levels of comfort and to secure long-term optimization of performance without requiring explicit input by the users.

In the responsive mode the house devices such as the electrochromic façade, the HVAC system, the artificial lights etc. are adjusted to counterbalance any activity may interfere with the long-term optimization plan.

In the interactive mode the house systems may engage with external stimuli such as user gestures or natural events. These stimuli are traced by the sensors in real time thus enabling the control to trigger the appropriate change of state.

Since there is no standard class of configurations satisfying all conditions, the adjustment of the systems remains in flux. While the high-level control receives data from the network of sensors and triggers the appropriate changes based on a long-term optimization plan, the active systems update their states to accommodate real-time events and user demands.

Kotsopoulos, SD, Giusti, L, Casalegno, F, 2014, “Designing synchronous interactions for the fenestration system of a prototype sustainable dwelling” 7th International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD2014), Effat University, Saudi Arabia, pp. 291-301.

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