Title :
A Retrofit Capacitive Sensing Occupancy Detector Using Fluorescent Lamps
Author :
Cooley, John J. ; Avestruz, Al-Thaddeus ; Leeb, Steven B.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
fDate :
4/1/2012 12:00:00 AM
Abstract :
This paper presents a retrofit system that exploits a fluorescent lamp´s own stray electric fields for capacitive sensing. Occupancy detection for demand-side energy management is a key application. The experimental system demonstrates a detection range of 10 ft. between the lamp and the nearest edge of the occupant. A full system model is presented including the simulation of a lumped element capacitive model. The full system model is validated against experimental data.
Keywords :
capacitive sensors; demand side management; energy management systems; fluorescent lamps; demand-side energy management; fluorescent lamps; lumped element capacitive model; retrofit capacitive sensing occupancy detector; stray electric fields; Capacitance; Electric potential; Electrodes; Electronic ballasts; Impedance; Integrated circuit modeling; Mathematical model; Capacitive model; FastCap; SPICE; capacitive sensing; fluorescent lamp; fully-differential; occupancy sensing;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2011.2151816
