L1-01D.22 – Analytics Some detectors are designed to use analysis to “see” the body dimensions of people and differentiate from backgrounds and...
L1-01D.21 – Measuring Humans Infrared energy is measured in microns, with the human body producing energy in the region of 7-14 microns....
L1-01D.20 – Temperature Compensation When the person to background contrast smaller – the output pulses from the PIR element will become smaller. Most PIR detectors will suffer a decrease in the coverage pattern as a result. Some detectors compensates at...
L1-01D.19 – Background Contrast When background or ambient temperature approaches that of a human being (approximately 88F), the lack of contrast can make detection...
L1-01D.18 – Multi-Level Signal Processing Introduced to reduce false alarms Second Threshold set based on research on walk tests Signals processed at slower rate between 1st & 2nd thresholds Signals processed at normal rate above 2nd...
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