Infrared object detector

Details Infrared object detector Infrared object detector

1996-04-10

1997-06-10

Joyce, Harold

Ventilation

Having inlet airway

Including automatic control means

165237, 250221, 250353, 340567, G08B 1318

Patent

active

056370407

ABSTRACT:
An infrared object detector, especially for an air conditioner is provided with a light receiving unit including a light block between a pair of hemispherical Fresnel lenses arranged in parallel on a printed circuit board, so that light receiving views intersect each other to thereby define three detection areas. From a signal output from the light receiving unit, the distance to a detected object is determined through a signal processing circuit and a program built in a microcomputer. The rotational speed of a fan in the air conditioner is classified into three stages according to the determined distance, and a command is issued for controlling the operation of an air conditioner according to the number, movements, movement degrees to persons. Therefore, the airflow of the air conditioner is controlled based on the command, thereby performing an optimum air conditioning. Further, the infrared object detector can be applied to a camcorder or a camera, to determine the distance to an object more accurately.

REFERENCES:
patent: 4484075 (1984-11-01), Kahl, Jr. et al.
patent: 4523095 (1985-06-01), Keller-Steinbach
patent: 4671458 (1987-06-01), Fukuda et al.
patent: 4772797 (1988-09-01), Kahl et al.
patent: 4849737 (1989-07-01), Kirihata et al.
patent: 5221919 (1993-06-01), Hermans

Affiliated with

Also associated with

Rating

Infrared object detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Infrared object detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared object detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-761216