Adaptive control system

Claim 2

An adaptive control system comprising sensing means for sensing an environmental variable to produce a first output signal representative of the variable, a first timer means for producing a second output signal after a first predetermined period, second timer means responsive to said second output signal and to a timing control sign for producing a control signal at the end of a time period selectable from a second predetermined time period less than said first predetermined time period, environmental variable control means responsive to said control signal for controlling said variable, and setpoint comparator means for comparing said first output signal with a setpoint level at the end of the sum of said first and second time periods to produce said timing control signal to select said selectable time period.

Claim 3

A control system as set forth in claim 1 wherein said first time period is twenty-two hours and said second time period is two hours.

Claim 4

A control system as set forth in claim 1 wherein said selectable time period is selectable in fifteen minute increments from said second time period.

Claim 5

A control system as set forth in claim 1 wherein said environmental variable is temperature and said control means controls the temperature.

Claim 6

A control system as set forth in claim 1 wherein said first timer means includes a fixed frequency oscillator producing clock signals and a counter for counting said clock signals to produce said second output signal.

Claim 7

A control system as set forth in claim 5 wherein said second timer means includes a second counter for counting said clock signals and presettable to an initial count to define said control time period at the end of a count by said second coutner.

Claim 8

An adaptive control system for controlling an environment treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the environment treatment apparatus before a predetermined occupancy time of the building so that the building internal environment is at a setpoint level by the time of occupancy comprising sensing means for sensing an environmental variable within the building and for comparing said variable with a setpoint level at the time of occupancy to produce a timing control signal representative of said comparison, a first timer means for producing a first output signal after a first predetermined real time period, second timer means responsive to said first output signal and to said timing control signal for producing an energy control signal at the end of a control time period selectable from a second predetermined real time period less then said first predetermined real time period, the sum of said first and second predetermined time period, occuring at the start of the time of occupancy, and connection means for applying said energy control signal to the environment treatment apparatus to energize said environmental variable at the end of said control time period prior to the occupancy of the building.

Claim 9

An adaptive control system for controlling an environment treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the environment treatment apparatus before a predetermined occupancy time of the building so that the building internal environment is at a setpoint level by the time of occupancy comprising sensing means for sensing an environmental variable within the building and for comparing said variable with a setpoint level at the time of occupancy to produce a timing control signal representative of said comparison, a first timer means for producing a first output signal after a first predetermined real time period, second timer means responsive to said first output signal and to said timing control signal for producing an energy control signal at the end of a control time period selectable from a second predetermined real time period less then said first predetermined real time period, the sum of said first and second predetermined time period, occuring at the start of the time of occupancy, and connection means for applying said energy control signal to the environment treatment apparatus to energize said environmental variable at the end of said control time period prior to the occupancy of the building.

Claim 10

An adaptive control system as set for in claim 7 wherein said first real time period is twenty-two hours and said second real time period is two hours.

Claim 11

An adaptive control system as set forth in claim 8 wherein said control time period is incrementally adjustable by fifteen minute intervals.

Claim 12

An adaptive control system as set forth in claim 4 wherein said environmental variable is temperature and treatment apparatus affects the temperature of the air in the building.

Claim 13

A control system as set forth in claim 7 wherein said first timer means includes a fixed frequency oscillator producing clock signals, and a first counter for counting said clock signal to define said first real time period.

Claim 14

A control system as set forth in claim 11 wherein said second timer means includes a second counter for counting said clock signal and having an initial count selectable by said timing control signal to define said control time period at the end of a count by said second counter.

Claim 17

A method as set forth in claim 13 wherein the second predetermined time period is twenty-two hours and the first predetermined time is tow hour period.

Claim 18

A method as set forth in claim 13 wherein the environmental variable is temperature and the treatment apparatus affects the temperature of the air in the building.