Self-programmable temperature control system for a heating and cooling system

• US 5,088,645 A
• Filed: 06/24/1991
• Issued: 02/18/1992
• Est. Priority Date: 06/24/1991
• Status: Expired due to Fees

• Current Assignee: Ian Bell
• Original Assignee: Ian Bell
• Inventors: Bell, Ian
• Primary Examiner(s): Wayner, William E.
• Application Number:
  US07/720,249
• Time in Patent Office: 239 Days
• Field of Search: 165/12, 165/11.1, 236/46, 236/47
• US Class Current: 236/46.00R
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/46 Improving electric energy efficiency or saving
• CPC Class Codes: F24F 11/64 using pre-stored data
• CPC Class Codes: F24F 2120/10 Occupancy
• CPC Class Codes: F24H 15/265 Occupancy
• CPC Class Codes: G05D 23/1902 characterised by the use of a variable reference value

Abstract

The present invention provides for a self-programming temperature control system for automatically adjusting the temperature control setpoint of a heating and cooling system of a space in accordance with the present or anticipated occupancy status of the space. The temperature control system comprises:

a) detecting means for detecting the occupancy status of the space and providing an output of the occupancy status of the space;

b) timing means for providing time intervals to the control system;

c) storage means for storing the output of the detecting means in relation to the time interval provided by the timing means to provide a stored past occupancy record of the space; and

d) programmed processor means including programmed instructions for reading and processing the past occupancy record of the space stored in the storage means to derive an anticipated occupancy status for the space and thereby control the temperature of the space in accordance with the programmed instructions and the stored past occupancy record of the space.

Claims

1. A temperature control system for automatically adjusting the temperature control setpoint of a heating and cooling system of a space in accordance with the present or anticipated occupancy status of the space, said temperature control system comprising:

a) detecting means for detecting the occupancy status of the space and providing an output of the occupancy status of the space;

b) timing means for providing time intervals to the control system;

c) storage means for storing the output of the detecting means in relation to the time interval provided by the timing means to provide a stored past occupancy record of the space; and

d) programmed processor means including programmed instructions for reading and processing the past occupancy record of the space stored in the storage means to derive an anticipated occupancy status for the space and thereby control the temperature of the space in accordance with the programmed instructions and the stored past occupancy record of the space.

2. A temperature control system as claimed in claim 1 wherein said detecting means are one or more detecting means selected from the group consisting of light detecting means, motion detecting means, sound detecting means, door opening detecting means, means to monitor the flow of water through a plumbing system, and means to monitor voltage loads.

3. A temperature control system as claimed in claim 2 wherein said detecting means is adapted to detect abrupt changes in the monitored function.

4. A temperature control system as claimed in claim 1 wherein said timing means is a clock and calendar means for providing time and day of week information to the control system.

5. A temperature control system as claimed in claim 1 wherein said time interval is one hour or less.

6. A temperature control system as claimed in claim 1 wherein said past occupancy record includes the occupancy status of the space for at least the previous 3 weeks.

7. A temperature control system as claimed in claim 1 wherein said past occupancy record includes the occupancy status of the space for at least the previous 5 weeks.

8. A method for automatically adjusting the temperature control setpoint of an environmental temperature sustaining means for altering the temperature in a space and providing heating and cooling to the space in accordance with the anticipated occupancy status of the space, said method comprising:

a) providing a temperature sensing means for sensing the ambient temperature in the space and providing an output of the sensed temperature of the space;

a detecting means for detecting the occupancy status of the space and providing an output of the occupancy status of the space;

timing means for providing a time interval to the control system; and

programmed processor means including programmed instructions;

b) the processor means being connected to the detecting means, the timing means and the storage means to allow monitoring and processing of the output of the detecting means in relation to the interval provided by the timing means in accordance with the programmed instructions to provide information on the past occupancy status of the space, the processor means further being so connected to allow storing of the information on the past occupancy status of the space in a storage means;

c) the processor means retrieving the stored information on the past occupancy status of the space from the storage means for the time interval provided by the timing means and processing the information in accordance with the programmed instructions to provide an indication of the anticipated occupancy status of the space for the time interval, the processor means providing a signal to a environmental temperature sustaining means for altering the temperature in the space and providing heating and cooling in accordance with the anticipated occupancy status of the space.

9. A temperature control system as claimed in claim 8 wherein said detecting means are one or more detecting means selected from the group consisting of light detecting means, motion detecting means, sound detecting means, door opening detecting means, means to monitor the flow of water through a plumbing system, and means to monitor voltage loads.

10. A temperature control system as claimed in claim 9 wherein said detecting means is adapted to detect abrupt changes in the monitored function.

11. A temperature control system as claimed in claim 8 wherein said timing means is a clock and calendar means for providing time and day of week information to the control system.

12. A temperature control system as claimed in claim 8 wherein said time interval is one hour or less.

13. A temperature control system as claimed in claim 8 wherein said past occupancy record includes the occupancy status of the space for at least the previous 3 weeks.

14. A temperature control system as claimed in claim 8 wherein said past occupancy record includes the occupancy status of the space for at least the previous 5 weeks.