Environmental control system and method

Details Environmental control system and method Environmental control system and method

1982-08-16

1985-04-30

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

246 47, 340566, 340552, 367 93, H04Q 900, G08B 108

Patent

active

045147299

ABSTRACT:
An environmental control system includes sensors in a room for sensing the environment and a sensor which may be a sound sensor, for detecting the presence or absence of a person in the room. With the aid of a digital computer, the presence or absence of a person in the room as determined by the sound sensor enables the computer to control the environment and also to actuate an alarm when a presence is sensed during an unauthorized time period. The system is applicable to one or more rooms.

REFERENCES:
patent: 3866198 (1975-02-01), Cohen
patent: 4090248 (1978-05-01), Swanson et al.
patent: 4101886 (1978-07-01), Grimes et al.
patent: 4284126 (1981-08-01), Dawson
patent: 4354241 (1982-10-01), Barello
patent: 4375637 (1983-03-01), Desjardins
patent: 4410883 (1983-10-01), Swiston, Sr.

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