Motion detection is the process of detecting a change in position of an object relative to its surroundings or the change in the surroundings relative to an object. Motion detection can be achieved by both mechanical and electronic methods. When motion detection is accomplished by natural organisms, it is called motion perception.
Motion can be detected by:
- Infrared (Passive and active sensors)
- Optics (video and camera systems)
- Radio Frequency Energy (radar, microwave and tomographic motion detection)
- Sound (microphones and acoustic sensors)
- Vibration (triboelectric, seismic, and inertia-switch sensors)
- Magnetism (magnetic sensors and magnetometers)
Read more about Motion Detection: Mechanical, Electronic, Occupancy Sensors For Lighting Control
Famous quotes containing the word motion:
“There’s not the smallest orb which thou behold’st
But in his motion like an angel sings,
Still quiring to the young-eyed cherubins;
Such harmony is in immortal souls,
But whilst this muddy vesture of decay
Doth grossly close it in, we cannot hear it.”
—William Shakespeare (1564–1616)