Object detector for air conditioner

Details Object detector for air conditioner Object detector for air conditioner

1996-04-23

1997-06-03

Joyce, Harold

Ventilation

Having inlet airway

Including automatic control means

165237, 250221, 340567, G08B 1318

Patent

active

056348460

ABSTRACT:
An object detector for an air conditioner has a signal detection input unit in which a light block is provided between a pair of Fresnel lenses spaced in parallel by a predetermined distance on a printed circuit board, thereby defining substantially three detection areas. The signal detection input unit detects the number, locations and movement distance of persons present indoor from a received signal, and outputs a signal representative of the information. Then, a command for the operation of an air conditioner is issued according to the information signal, thereby enabling the optimum operation of the air conditioner under circumstances.

REFERENCES:
patent: 4671458 (1987-06-01), Fukuda et al.
patent: 4849737 (1989-07-01), Kirihata et al.
patent: 5221919 (1993-06-01), Hermans

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