Passive infrared sensor startup detecting method, for motion detector, involves detecting inhibition phase of detection signal whose duration is found by control unit from operating voltage and is less than charging phase maximum duration

摘要

#CMT# #/CMT# The method involves initializing a motion detector, amplifying and filtering a signal at the output of an infrared sensor and carrying out a detection phase after the initialization step. A phase of inhibition of a detection signal is determined during the initialization step. A duration of the detection signal is determined by a lighting device controlling and commanding unit e.g. microcontroller, from an operating voltage and is lower than a maximum duration of a phase of the charging capacitors. #CMT# : #/CMT# An independent claim is also included for a device for implementing a method for detecting start-up for motion detector. #CMT#USE : #/CMT# Used for detecting startup, after cutting a grid supply, of an passive infrared sensor for a motion detector which triggers a device of lighting, alarming (claimed), heating or air conditioning for automating comfort in a dwelling or service sector #CMT#ADVANTAGE : #/CMT# The method allows reducing the duration of inhibition of the starting detection after power outage of short duration in rapid and economic manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flowchart of different phases of a startup detecting method. `(Drawing contains non-English language text)`.