motion detection

Perceiving physical displacement

Motion detection is the technological ability to sense movement within a defined area.

Security cameras use motion detection to begin recording when something moves.

Phones and gaming systems detect motion to respond to gestures or orientation changes.

Motion detectors trigger lights, alarms, or automatic doors: The porch light has motion detection.

Opposites
monitoring approach

motion detectiontime-lapse photography

Frames captured slowly, played quickly

Family

motion, detection

Familiarity
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Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G