Abstract:
Conventional heating, ventilating, and air conditioning
(HVAC) systems usually achieve the desired control
level by means of simple ON–OFF control, which can often
result in high energy wastage. A potential solution to this
issue is intelligent self-regulating HVAC controllers, which base
their actions/decisions on sensor data. In this paper, an office
climate monitoring and control system is designed and implemented.
The system consists of various wireless sensor nodes
and a control node. The sensor nodes provide the sensor data
necessary to determine occupancy and the control node executes
the algorithm, which decides whether to activate cooling or
heating based on the sensor data. This system can serve as
a controller and can be integrated into HVAC systems in smart
buildings. It is shown that the developed control algorithm
executed on the control node results in an improvement of up
to 39% in energy efficiency over conventional ON–OFF controllers
for HVAC systems.
