HVAC system monitoring

• US 6,853,882 B2
• Filed: 05/17/2002
• Issued: 02/08/2005
• Est. Priority Date: 05/17/2002
• Status: Active Grant

• Current Assignee: Carrier Corporation (Carrier Global Corporation)
• Original Assignee: Carrier Corporation (Carrier Global Corporation)
• Inventors: Dudley, Kevin F.
• Primary Examiner(s): Picard, Leo
• Assistant Examiner(s): Rapp, Chad
• Application Number:
  US10/147,402
• Publication Number:
  US 20030216839A1
• Time in Patent Office: 998 Days
• Field of Search: 700/9, 700/276, 700/277, 700/278, 700/282, 700/299, 700/300, 702/99, 702/105, 702/130, 162200-303, 236/1, 236/44
• US Class Current: 700/276
• 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 11/49 ensuring correct operation, e.g. by trial operation or configuration checks
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays

Abstract

A computer is operative to analyze comfort level information from one or more locations to be provided with conditioned air. The computer determines whether the comfort level information indicates that a particular overall level of comfort is being repetitively requested by a location over an extended period of time. The computer is operative to send a warning signal when this occurs.

Claims

1. A process for monitoring the provision of conditioned air to a plurality of locations, said process comprising the steps of:

collecting information as to the levels of comfort entered into at least one data entry device at each location;

computing levels of comfort for each location from the collected information as to the levels of comfort entered at the data entry devices;

determining how many successive times a computed level of comfort has occurred for at least one location; and

transmitting a signal when the number of successive times a computed level of comfort for at least one location exceeds a predetermined threshold, whereby the provision of conditioned air to the location can be further examined if necessary.

2. The process of claim 1 wherein said step of determining how many successive times the computed level of comfort for at least one particular location has occurred comprises the steps of:

tracking the number of successive times the computed level of comfort for the location produces the same overall level of comfort; and

comparing the tracked number of successive times the computed level of comfort produces the same level of comfort with the predetermined threshold for the particular location.

3. The process of claim 2 further comprising the steps of:

proceeding to said step of transmitting a message when the number of successive times the computed level of comfort exceeds a predetermined threshold; and

proceeding to compute the level of comfort of another location when the number of successive times of the computed level of comfort does not exceed the predetermined threshold.

4. The process of claim 1 wherein the predetermined threshold is determined based upon the elapsed time between successive computations of levels of comfort for the particular location.

5. The process of claim 1 further comprising the step of:

transmitting the computed levels of comfort to an HVAC control which controls at least one HVAC system providing conditioned air to the plurality of locations.

6. The process of claim 1 further comprising the steps of:

generating a menu of different comfort levels that may be selected at each data entry device;

storing at least one comfort level that is selected in the data entry device;

transmitting the stored level of comfort to a computer which executes said step of computing levels of comfort for each location from the collected information as to the levels of comfort entered at the data entry devices; and

erasing the stored level of comfort from memory in the data entry device whereby the stored level of comfort cannot be transmitted a second time.

7. A system for providing conditioned air to at least one location, said system comprising:

a plurality of data entry devices at the location, each data entry device being operative to provide for the selection of at least one level of comfort at the location;

at least one computer in communication with the plurality of data entry devices, said computer being operative to collect information as to the selections of comfort level entered at the data entry devices and to thereafter compute a level of comfort for the location from the collected information as to the levels of comfort entered at the data entry devices and being furthermore operative to determine how many successive times a particular computed level of comfort for the location has been computed and being furthermore operative to transmit a signal when the number of successive times the particular computed level of comfort exceeds a predetermined threshold, whereby the provision of conditioned air to the location containing the data entry devices can be further examined if necessary; and

at least one HVAC control being operative to control the provision of conditioned air to the location in response to the computation of the overall level of comfort for the location.

8. The system of claim 7 wherein each data entry device is operative to generate a menu of different comfort levels that may be selected and entered at each data entry device, each data entry device being thereafter operative to store the entry of a particular comfort level from among the different comfort levels in the menu and being furthermore operative to provide the stored entry of a particular comfort level to the at least one computer in communication with the plurality of data entry devices and being still furthermore operative to thereafter erase the stored entry in the data entry device.

9. The system of claim 7 wherein said at least one computer is operative to track the number of successive times the computed level of comfort for the location the same level of comfort and is furthermore operative to compare the tracked number of successive times the computed level of comfort produces the same level of comfort with the predetermined threshold.

10. The system of claim 9 wherein said at least one computer is operative to proceed to transmit a signal when the number of successive times the computed level exceeds a predetermined threshold and to thereafter proceed to again compute the level of comfort for the location from further information gathered from the data entry devices.

11. The system of claim 7 wherein the predetermined threshold is determined based upon the elapsed time between successive computations of overall levels of comfort from the collected information as to the levels of comfort entered at the data entry devices.

12. The system of claim 9 wherein each data entry device is a personal computer.

13. A system for providing conditioned air to a plurality of locations, said system comprising:

a plurality of data entry devices at each location, each data entry device being operative to provide for the selection of at least one level of comfort;

at least one computer in communication with the plurality of data entry devices, said computer being operative to collect information as to the selections of comfort level entered at the data entry devices and being furthermore operative to compute a level of comfort for each location from the collected information and being furthermore operative to determine how many successive times a particular level of comfort for each location has been computed and being still furthermore operative to transmit a signal when the number of successive times a particular computed level of comfort for a location exceeds a predetermined threshold for that location, whereby the provision of conditioned air to the location can be further examined if necessary; and

at least one HVAC control being operative to control the provision of conditioned air to the locations in response to the computation of levels of comfort for the locations.

14. The system of claim 13 wherein each data entry device is operative to generate a menu of different comfort levels that may be selected and entered at each data entry device, each data entry device being thereafter operative to store the entry of a particular comfort level from among the different comfort levels in the menu and being furthermore thereafter operative to provide the stored entry of a particular comfort level to the at least one computer in communication with the plurality of data entry devices and being still furthermore thereafter operative to erase the stored entry in the data entry device.

15. The system of claim 13 wherein said at least one computer is operative to track the number of successive times the computed level of comfort for each location produces the same overall level of comfort for that location and being furthermore operative to compare the tracked number of successive times the computed level of comfort for the location produces the same overall level of comfort with the predetermined threshold.

16. The system of claim 13 wherein said at least one computer is operative to proceed to transmit a message when the number of successive times the previously computed level exceeds a predetermined threshold and to thereafter proceed to compute the level of comfort for another location.

17. The system of claim 13 wherein the predetermined threshold is determined based upon the elapsed time between successive computations of levels of comfort from the collected information as to the levels of comfort entered at the data entry devices.

18. The system of claim 13 wherein each data entry device is a personal computer.