INTELLIGENT GRID-BASED HVAC SYSTEM

• US 20100318226A1
• Filed: 06/11/2010
• Published: 12/16/2010
• Est. Priority Date: 06/12/2009
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Franco, Lucas G., Augusto, Leonardo R., Seo, Carlos E.
• Granted Patent: US 8,579,205 B2
• Time in Patent Office: Days
• US Class Current: 700/277
• 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 11/70 Control systems characterised by their outputs; Constructional details thereof
• CPC Class Codes: F24F 11/74 for controlling air flow rate or air velocity
• CPC Class Codes: F24F 13/08 Air-flow control members, e.g. louvres, grilles, flaps or guide plates F24F7/013, F24F13/06 take precedence
• CPC Class Codes: F24F 2120/10 Occupancy
• CPC Class Codes: F24F 2120/20 Feedback from users
• CPC Class Codes: F24F 3/00 Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems room units F24F1/00

Abstract

An HVAC system includes a grid of intersecting ducts having one or more inlets, outlets, and intersections. Air may be received into the inlets and directed through the outlets into one or more zones of a building. One or more HVAC units may be connected to the inlets and mechanical valves may be located at the intersections to control the air flow through the grid. A control system may be provided to control the temperature of each zone by adjusting the mechanical valves (and/or turning selected HVAC units “on” or “off”). In certain embodiments, the HVAC system includes at least one reading device to read temperature preference information associated with an occupant of a zone. The control system may then align the temperature of the zone with the temperature preference information when the occupant is inside the zone. A corresponding method and apparatus are also disclosed herein.

Claims

1. An HVAC system comprising:

a grid of intersecting ducts, the grid comprising a plurality of inlets, outlets, and intersections, wherein each outlet is associated with a zone;

a plurality of HVAC units connected to the inlets;

a plurality of mechanical valves located at the intersections, the mechanical valves configured to control air flow at each of the intersections; and

a control system to control the temperature of each zone by adjusting the plurality of mechanical valves.

2. The HVAC system of claim 1, further comprising a reading device configured to read temperature preference information associated with an occupant of the zone.

3. The HVAC system of claim 2, wherein the temperature preference information is stored on a readable medium carried by the occupant.

4. The HVAC system of claim 3, wherein the readable medium is at least one of a card, a tag, and a badge.

5. The HVAC system of claim 3, wherein the control system is configured to control the temperature of a zone by comparing the temperature preference information and the temperature measured for the zone.

6. The HVAC system of claim 5, wherein the control system is configured to control the temperature of a zone by averaging the temperature preference information for each occupant of the zone.

7. The HVAC system of claim 2, wherein the temperature preference information comprises a weight value, and the control system is configured to give more weight to temperature preference information having a higher weight value.

8. The HVAC system of claim 2, wherein the temperature preference information includes a range of acceptable temperatures.

9. The HVAC system of claim 1, wherein the grid is a matrix.

10. The HVAC system of claim 1, wherein the control system is further configured to turn selected HVAC systems on and off to improve the efficiency of the HVAC system.

11. A method for implementing an HVAC system, the method comprising:

establishing a grid of intersecting ducts, the grid comprising a plurality of inlets, outlets, and intersections;

receiving air into the inlets;

directing air from each outlet into a zone;

providing a plurality of mechanical valves at the intersections to regulate the air flow through the grid; and

controlling the temperature of each zone by adjusting the mechanical valves.

12. The method of claim 11, further comprising reading temperature preference information associated with an occupant of the zone.

13. The method of claim 12, wherein reading temperature preference information comprises reading from a readable medium carried by the occupant.

14. The method of claim 13, wherein reading from a readable medium comprises reading from at least one of a card, a tag, and a badge.

15. The method of claim 13, further comprising controlling the temperature of each zone by comparing the temperature preference information and the measured temperature for each zone.

16. The method of claim 15, further comprising controlling the temperature of a zone by averaging the temperature preference information for each occupant of the zone.

17. The method of claim 15, further comprising weighting the temperature preference information, and providing more weight to temperature preference information having a higher weight value.

18. An apparatus comprising:

a grid of intersecting ducts, the grid comprising a plurality of inlets, outlets, and intersections, each outlet flowing into a zone;

a plurality of mechanical valves located at the intersections, the mechanical valves controlling the flow of air at the intersections; and

a control system to control the temperature of each zone by adjusting the mechanical valves; and

the control system further configured to adjust the temperature of each zone to align with temperature preference information received for at least one occupant in the zone.

19. The apparatus of claim 18, wherein the temperature preference information is stored on a readable medium carried by the occupant.

20. The apparatus of claim 18, wherein the control system is configured to adjust the temperature of each zone by averaging the temperature preference information for each occupant in the zone.