SENSOR SYSTEM FOR SEPARATING BACKGROUND NOISE AND PERSON MOVEMENT SIGNAL FROM PIR SENSOR SIGNAL AND SIGNAL SEPARATION METHOD THEREOF

摘要

The present invention relates to a sensor system capable of separating background noise and a person movement signal from a PIR sensor signal and a signal separation method thereof. The sensor system according to an embodiment of the present invention includes: a passive infrared (PIR) signal collection part to collect a PIR signal from an infrared ray inputted from the outside; a RV calculation part to calculate the number of ripple (Ripple Value : RV) defined by shaking of a signal, from the previously collected PIR signal; and a signal separation part which separates the person movement signal from the collected PIR signal, by comparing the calculated number of the ripples with a previously established threshold as to the number of ripples.;COPYRIGHT KIPO 2016