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- Occupancy_sensor abstract "An occupancy sensor is a lighting control device that detects occupancy of a space by people and turns the lights on or off automatically, using infrared, ultrasonic or microwave technology. Occupancy sensors are typically used to save energy, provide automatic control, and comply with building codes.Three basics types of occupancy sensors are:Passive infrared sensor, which works on heat movement detection. Inside of device is a pyroelectric sensor calibrated to detect infrared radiation radiated by human body movement. Based on the detection, the sensor operates and starts lighting load connected to it.Ultrasonic sensor, similar to radar. It works on the doppler shift principle. An ultrasounic sensor will send high frequency sound waves in area and will check for their reflected patterns. If the reflected pattern is changing continuously then it assumes that there is occupancy and the lighting load connected is turned on. If the reflected pattern is the same for a preset time then the sensor assumes there is no occupancy and the load is switched off.Microwave sensor. Similar to the ultrasonic sensor, a microwave sensor also works on the doppler shift principle. A microwave sensor will send high frequency microwaves in an area and will check for their reflected patterns. If the reflected pattern is changing continuously then it assumes that there is occupancy and the lighting load connected is turned on. If the reflected pattern is the same for a preset time then the sensor assumes there is no occupancy and the load is switched off. A microwave sensor has high sensitivity as well as detection range compared to other types of sensors.↑".
- Occupancy_sensor thumbnail Light_switch_with_passive_infrared_sensor.jpg?width=300.
- Occupancy_sensor wikiPageExternalLink v=onepage&q=US%20Patent%20No%3A%204%2C225%2C808&f=false.
- Occupancy_sensor wikiPageID "7583854".
- Occupancy_sensor wikiPageLength "5357".
- Occupancy_sensor wikiPageOutDegree "13".
- Occupancy_sensor wikiPageRevisionID "681578756".
- Occupancy_sensor wikiPageWikiLink Category:Electrical_power_control.
- Occupancy_sensor wikiPageWikiLink Category:Energy-saving_lighting.
- Occupancy_sensor wikiPageWikiLink Doppler_effect.
- Occupancy_sensor wikiPageWikiLink Electric_light.
- Occupancy_sensor wikiPageWikiLink Infrared.
- Occupancy_sensor wikiPageWikiLink Microwave.
- Occupancy_sensor wikiPageWikiLink Motion_detector.
- Occupancy_sensor wikiPageWikiLink Passive_infrared_sensor.
- Occupancy_sensor wikiPageWikiLink Proximity_sensor.
- Occupancy_sensor wikiPageWikiLink Radar.
- Occupancy_sensor wikiPageWikiLink Ultrasonic_sensor.
- Occupancy_sensor wikiPageWikiLink Ultrasonic_transducer.
- Occupancy_sensor wikiPageWikiLink Ultrasound.
- Occupancy_sensor wikiPageWikiLink File:Light_switch_with_passive_infrared_sensor.jpg.
- Occupancy_sensor wikiPageWikiLinkText "Occupancy sensor".
- Occupancy_sensor wikiPageWikiLinkText "occupancy control".
- Occupancy_sensor wikiPageWikiLinkText "occupancy sensor".
- Occupancy_sensor hasPhotoCollection Occupancy_sensor.
- Occupancy_sensor wikiPageUsesTemplate Template:Noref.
- Occupancy_sensor wikiPageUsesTemplate Template:Technology-stub.
- Occupancy_sensor wikiPageUsesTemplate Template:US_Patent.
- Occupancy_sensor subject Category:Electrical_power_control.
- Occupancy_sensor subject Category:Energy-saving_lighting.
- Occupancy_sensor hypernym Device.
- Occupancy_sensor type Device.
- Occupancy_sensor comment "An occupancy sensor is a lighting control device that detects occupancy of a space by people and turns the lights on or off automatically, using infrared, ultrasonic or microwave technology. Occupancy sensors are typically used to save energy, provide automatic control, and comply with building codes.Three basics types of occupancy sensors are:Passive infrared sensor, which works on heat movement detection.".
- Occupancy_sensor label "Occupancy sensor".
- Occupancy_sensor sameAs Occupancy_sensor.
- Occupancy_sensor sameAs m.0qfvjxx.
- Occupancy_sensor sameAs Q7075748.
- Occupancy_sensor sameAs Q7075748.
- Occupancy_sensor wasDerivedFrom Occupancy_sensor?oldid=681578756.
- Occupancy_sensor depiction Light_switch_with_passive_infrared_sensor.jpg.
- Occupancy_sensor isPrimaryTopicOf Occupancy_sensor.