Saving energy has become one of the most
important issues these days. The most waste of energy is
caused by the inefficient use of the consumer electronics.
Particularly, a light accounts for a great part of the total
energy consumption. Various light control systems are
introduced in current markets, because the installed lighting
systems are outdated and energy-inefficient. However, due to
architectural limitations, the existing light control systems
cannot be successfully applied to home and office buildings.
Therefore, this paper proposes an intelligent household LED
lighting system considering energy efficiency and user
satisfaction. The proposed system utilizes multi sensors and
wireless communication technology in order to control an
LED light according to the user’s state and the surroundings.
The proposed LED lighting system can autonomously adjust
the minimum light intensity value to enhance both energy
efficiency and user satisfaction. We designed and implemented
the proposed system in the test bed and measured total power
consumption to verify the performance. The proposed LED
lighting system reduces total power consumption of the test
bed up to 21.9%1.