INFRARED-RAY MATERIAL-BODY DETECTOR

PROBLEM TO BE SOLVED: To provide an infrared object detector, especially for air-conditioner. SOLUTION: The infrared object detector for air-conditioner decides whether an object is located at a remote, intermediate or close position. The distance is determined by detecting a signal outputted from a...

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Bibliographische Detailangaben
Hauptverfasser:	RI SEISHIYU, KIN TAIKOU, TEI GENKIYO
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING ALARM SYSTEMS ANALOGOUS ARRANGEMENTS USING OTHER WAVES BLASTING COLORIMETRY DETECTING MASSES OR OBJECTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GEOPHYSICS GRAVITATIONAL MEASUREMENTS HEATING LIGHTING LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING MECHANICAL ENGINEERING ORDER TELEGRAPHS PHYSICS RADIATION PYROMETRY RADIO DIRECTION-FINDING RADIO NAVIGATION RANGES SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an infrared object detector, especially for air-conditioner. SOLUTION: The infrared object detector for air-conditioner decides whether an object is located at a remote, intermediate or close position. The distance is determined by detecting a signal outputted from a light receiving part 100 having substantially three detection areas of intersection field of view with a light shielding means 103 being interposed between a pair of hemispherical Fresnel lenses juxtaposed on a printed circuit board 102 through a signal processing circuit 250 and a program stored in a microcomputer 300. The r.p.m. of a fan in air-conditioner is set in three stages based on the decision results in order to deliver a command for controlling the operation of air-conditioner depending on the number of persons, movement and activity. Air flow of the air-conditioner is regulated optimally according to the command, thus saving power. When the infrared object detector is applied to a camcoder or a camera, distance to an object or scene can be determined more accurately.