Temperature control system and methods for operating same
A method for operating a temperature control system is disclosed. The method includes monitoring an interior and exterior temperature of a structure, defining a first time range and a second time range, associating one or more operating parameters of the temperature control system with the first time range, associating one or more operating parameters of the temperature control system with the second time range, monitoring operational time and operational load of the cooling system for the first time range, predicting a space temperature and an outdoor air temperature for a subsequent time period, and controlling a ventilation subsystem during the second time range based upon the monitored operational time and operational load of the cooling subsystem for the first time range, the predicted space temperature, the predicted outdoor air temperature, and the one or more operating parameters of the cooling subsystem associated with the second time range.
1. A method for operating a temperature control system having a ventilation subsystem and a cooling subsystem, the method comprising:
monitoring an indoor temperature of a structure;
monitoring an outdoor temperature of ambient air outside of the structure;
defining a first time range and a second time range, wherein the second time range comprises a duration less than the first time range;
associating one or more operating parameters of the ventilation subsystem and the cooling subsystem with the first time range;
associating one or more operating parameters of the ventilation subsystem and the cooling subsystem with the second time range;
monitoring operational time and operational load of the cooling subsystem for the first time range;
predicting a space temperature and an outdoor air temperature for a subsequent time period; and
controlling the ventilation subsystem during the second time range based upon the monitored operational time and operational load of the cooling subsystem for the first time range, the monitored interior and exterior temperatures, the predicted space temperature, the predicted outdoor air temperature, and the one or more operating parameters of the cooling subsystem associated with the second time range.
2. The method of claim 1 , wherein the predicting the space temperature is predicted based upon the monitored indoor and outdoor temperature of one or more prior defined time periods, and a user-supplied temperature set point(s) associated with the one or more prior defined time periods.
3. The method of claim 1 , wherein the predicting the space temperature is predicted based upon the monitored indoor and outdoor temperature of one or more prior defined time periods, a user-supplied temperature set point(s) associated with the one or more prior defined time periods, and the predicted outdoor air temperature.
4. The method of claim 3 , wherein the predicting a space temperature is calculated using:
(
1
T
1
+
T
2
+
…
+
Tn
)
(
T
1
*
∫
a
1
b
1
(
f
(
x
)
)
1
d
x
b
1
-
a
1
+
T
2
*
∫
a
1
b
1
(
f
(
x
)
)
2
d
x
b
2
-
a
2
+
…
+
Tn
*
∫
an
bn
(
f
(
x
)
)
n
d
x
bn
-
an
)
where
x represents the predicted outdoor air temperature (POADT),
(f(x))1, (f(x))2 . . . (f(x))n represent a function of space temperature,
T1, T2 . . . Tn represent time intervals,
n represents a total number of set point intervals for the time period,
b1, b2, bn represent an ending POADT of the interval, and
a1, a2, an represent a beginning POADT of the interval.
5. The method of claim 1 , further comprising:
monitoring a supply air temperature and a return air temperature;
monitoring an operating status of a ventilation system;
monitoring space temperature;
calculating a first average space temperature for a first time period based upon the monitored inside air temperature;
calculating a second average space temperature for a second time period based upon the monitored inside air temperature;
calculating a first average outdoor air temperature for the first time period based upon the monitored outdoor air temperature;
calculating a second average outdoor air temperature for the second time period based upon the monitored outdoor air temperature; and
further controlling the temperature control system based upon the supply air temperature, the return air temperature, the monitored space temperature; the operating status of the ventilation system, the calculated first average space temperature, the calculated second average space temperature, the calculated first average outdoor air temperature, and the calculated second average outdoor air temperature.
6. The method of claim 5 , wherein the temperature control system further includes an outdoor air damper; and wherein the method further includes:
monitoring a mixed air temperature, wherein the mixed air temperature is monitored within a housing of the temperature control, downstream of a return air supply and downstream of outside air;
calculating an opening position of the outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature; and
further controlling the temperature control system based upon the monitored opening position.
7. The method of claim 6 , wherein controlling the temperature control system further includes:
iteratively, at defined time periods, summing, for a first result, a product of the monitored operating status of the ventilation system with a difference of the supply air temperature and the monitored return air temperature and a difference of a product of the monitored operating status of the ventilation system and the calculated opening position of the outdoor air damper with a difference of the monitored outdoor temperature and the monitored return air temperature;
further controlling the temperature control system based upon the iteratively summing;
iteratively, at defined time periods, summing, for a second result, a product of the monitored operating status of the ventilation system and the monitored opening position of the outdoor air damper with the difference of the monitored outdoor temperature and the monitored return air temperature; and
further controlling the temperature control system based upon the iteratively summing.
8. The method of claim 7 , wherein controlling the temperature control system further includes:
further controlling the temperature control system based upon a sum of the first result and the second result; and
averaging a difference between the first average outdoor air temperature and the first average space temperature subtracted from a product of the sum of the first result and the second result and a variable M calculated by: a difference between the difference of the second average outdoor air temperature for the second time period and the second average space temperature for the second time period and the difference between the first average outdoor air temperature for the first time period and the first average space temperature for the first time period divided by: a difference between the sum of the first result and the second result calculated at the second time period and the sum of the first result and the second result calculated at the first time period.
9. The method of claim 1 , further comprising:
monitoring a mixed air temperature, wherein the mixed air temperature is monitored within a housing of the temperature control, downstream of a return air supply and downstream of outside air;
calculating an opening position of an outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature;
further controlling the temperature control system based upon the calculated damper position.
10. The method of claim 1 , further comprising:
estimating heat energy produced inside the structure based upon the monitored outdoor air temperatures, the monitored indoor air temperatures, and operating status of the temperature control system; and
further controlling the temperature control system based upon the estimated heat energy produced.
11. A method for operating a temperature control system for a structure, the method comprising:
monitoring indoor and outdoor temperature;
monitoring an operating state of the temperature control system;
predicting a space temperature and an outdoor air temperature for a subsequent time period;
estimating an operating metric for temperature control system based upon the (a) monitored interior temperature of the structure, (b) monitored outside air temperature, (c) monitored operating state of the temperature control system, (d) predicted space temperature, and (e) predicted outdoor air temperature; and
controlling the temperature control system during the subsequent time period based upon the estimated operating metric.
12. The method of claim 11 , wherein the operating state of the temperature control system is one of an ON operating state or an OFF operating state for each of a heating system, a cooling system, and a ventilation system.
13. The method of claim 11 , wherein the predicting the space temperature is predicted based upon the monitored indoor temperature of a prior defined time period and user-supplied temperature set point(s).
14. The method of claim 11 , wherein the predicting the space temperature is an average temperature of a prior defined time period.
15. The method of claim 11 , wherein the predicting a space temperature is predicted based upon the predicted outdoor air temperature, the monitored outdoor air temperature, and user-supplied temperature set points.
16. The method of claim 11 , wherein the predicting the space temperature is predicted based upon the monitored indoor and outdoor temperature of one or more prior defined time periods, a user-supplied temperature set point(s) associated with the one or more prior defined time periods, and the predicted outdoor air temperature.
17. The method of claim 11 , wherein the predicting a space temperature is calculated using:
(
1
T
1
+
T
2
+
…
+
Tn
)
(
T
1
*
∫
a
1
b
1
(
f
(
x
)
)
1
d
x
b
1
-
a
1
+
T
2
*
∫
a
1
b
1
(
f
(
x
)
)
2
d
x
b
2
-
a
2
+
…
+
Tn
*
∫
an
bn
(
f
(
x
)
)
nd
x
bn
-
an
)
where
x represents the predicted outdoor air temperature (POADT),
(f(x))1, (f(x))2 . . . (f(x))n represent a function of space temperature,
T1, T2 . . . Tn represent time intervals,
n represents a total number of set point intervals for the time period,
b1, b2, bn represent an ending POADT of the interval, and
a1, a2, an represent a beginning POADT of the interval.
18. The method of claim 11 , wherein the predicting a space temperature is calculated using:
PAST
=
1
t
4
-
t
1
∫
t
1
t
4
ST
(
t
)
d
t
=
1
t
4
-
t
1
[
∫
t
1
t
2
(
YODAT
1
-
Ce
kt
)
d
t
+
∫
t
2
t
3
(
STSP
)
d
t
+
∫
t
3
t
4
(
Ce
kt
+
YODAT
2
)
d
t
]
where
PAST represents the predicting a space temperature,
d
(
ST
)
d
t
represents a rate of change of temperature with respect to time,
STSP represents space temperature set point,
ST represents a space temperature at any time t, wherein ST=STSP when STSP=YODAT1−C e{circumflex over ( )}(kt)
k represents a proportionality constant,
t represents time,
YODAT1 represents the outdoor air temperature plus the value of B at the start of the time interval,
YODAT2 represents the outdoor air temperature plus the value of B at the start of the second time interval, and
C is constant and where
B =(AODAT i −AST i )−(Total_heat_transferred i *M i )
where
AODAT represents average outdoor air temperature, as defined previously,
AST represents average space temperature, as defined previously,
i represents a predetermined interval where each B is calculated, and
M represents a slope of the graph comparing Total_heat_transferred to (AODAT−AST).
19. The method of claim 11 , wherein the predicting the outdoor air temperature is executed based upon received weather forecasting information.
20. The method of claim 11 , wherein the predicting the outdoor air temperature is determined based upon a rolling average of the monitored outdoor air temperature.
21. The method of claim 11 , further comprising:
monitoring a supply air temperature and a return air temperature;
monitoring an operating status of a ventilation system;
monitoring space temperature;
calculating a first average space temperature for a first time period based upon the monitored inside air temperature;
calculating a second average space temperature for a second time period based upon the monitored inside air temperature;
calculating a first average outdoor air temperature for the first time period based upon the monitored outdoor air temperature;
calculating a second average outdoor air temperature for the second time period based upon the monitored outdoor air temperature; and
further controlling the temperature control system based upon the supply air temperature, the return air temperature, the monitored space temperature; the operating status of the ventilation system, the calculated first average space temperature, the calculated second average space temperature, the calculated first average outdoor air temperature, and the calculated second average outdoor air temperature.
22. The method of claim 21 , wherein the temperature control system further includes an outdoor air damper; and wherein the method further includes:
monitoring a mixed air temperature, wherein the mixed air temperature is monitored within a housing of the temperature control, downstream of a return air supply and downstream of outside air;
calculating an opening position of the outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature; and
further controlling the temperature control system based upon the monitored opening position.
23. The method of claim 22 , wherein controlling the temperature control system further includes:
iteratively, at defined time periods, summing, for a first result, a product of the monitored operating status of the ventilation system with a difference of the supply air temperature and the monitored return air temperature and a difference of a product of the monitored operating status of the ventilation system and the calculated opening position of the outdoor air damper with a difference of the monitored outdoor temperature and the monitored return air temperature; and
further controlling the temperature control system based upon the iteratively summing.
24. The method of claim 23 , wherein controlling the temperature control system further includes:
iteratively, at defined time periods, summing, for a second result, a product of the monitored operating status of the ventilation system and the monitored opening position of the outdoor air damper with the difference of the monitored outdoor temperature and the monitored return air temperature; and
further controlling the temperature control system based upon the iteratively summing.
25. The method of claim 24 , wherein controlling the temperature control system further includes:
further controlling the temperature control system based upon a sum of the first result and the second result.
26. The method of claim 23 , wherein controlling the temperature control system further includes:
averaging a difference between the first average outdoor air temperature and the first average space temperature subtracted from a product of the sum of the first result and the second result and a variable M calculated by: a difference between the difference of the second average outdoor air temperature for the second time period and the second average space temperature for the second time period and the difference between the first average outdoor air temperature for the first time period and the first average space temperature for the first time period divided by: a difference between the sum of the first result and the second result calculated at the second time period and the sum of the first result and the second result calculated at the first time period.
27. The method of claim 11 , further comprising:
monitoring a mixed air temperature, wherein the mixed air temperature is monitored within a housing of the temperature control, downstream of a return air supply and downstream of outside air;
calculating an opening position of an outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature;
further controlling the temperature control system based upon the calculated damper position.
28. The method of claim 11 , further comprising:
estimating heat energy produced inside the structure based upon the monitored outdoor air temperatures, the monitored indoor air temperatures, and operating status of the temperature control system; and
further controlling the temperature control system based upon the estimated heat energy produced.
29. The method of claim 11 , wherein the temperature control system includes one of a cooling subsystem, a ventilation subsystem, and a heating subsystem.
30. A method for operating a temperature control system having a plurality of temperature control zones within a structure, the method comprising:
monitoring outdoor temperature;
monitoring an operating state of the temperature control system;
monitoring a supply air temperature and a return air temperature;
monitoring an operating status of a ventilation system;
monitoring space temperature;
monitoring a mixed air temperature, wherein the mixed air temperature is monitored within a housing of the temperature control system, downstream of a return air supply and downstream of outside air;
calculating an opening position of the outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature;
calculating a first average space temperature for a first time period based upon the monitored inside air temperature;
calculating a second average space temperature for a second time period based upon the monitored inside air temperature;
calculating a first average outdoor air temperature for the first time period based upon the monitored outdoor air temperature;
calculating a second average outdoor air temperature for the second time period based upon the monitored outdoor air temperature;
iteratively, at defined time periods, summing, for a first result, a product of the monitored operating status of the ventilation system with a difference of the supply air temperature and the monitored return air temperature and a difference of a product of the monitored operating status of the ventilation system and the calculated opening position of the outdoor air damper with a difference of the monitored outdoor temperature and the monitored return air temperature;
iteratively, at defined time periods, summing, for a result, a product of the monitored operating status of the ventilation system and the monitored opening position of the outdoor air damper with the difference of the monitored outdoor temperature and the monitored return air temperature;
predicting a space temperature and an outdoor air temperature for a subsequent time period;
estimating an operating metric for temperature control system based upon the (a) monitored interior temperature of the structure, (b) monitored outside air temperature, (c) monitored operating state of the temperature control system, (d) predicted space temperature, and (e) predicted outdoor air temperature, (f) the result, (g) the calculated opening position, (h) the supply air temperature, (i) the return air temperature, (j) the monitored space temperature; (k) the operating status of the ventilation system, (l) the calculated first average space temperature, (m) the calculated second average space temperature, (n) the calculated first average outdoor air temperature, and (o) the calculated second average outdoor air temperature; and
controlling the temperature control system during the subsequent time period based upon the estimated operating metric.
31. A method for operating a temperature control system having a ventilation system, the ventilation system comprising an outdoor air damper, the method comprising:
monitoring an outdoor air temperature, return air temperature, and a supply air temperature;
monitoring an operating status of a ventilation system;
monitoring an opening position of the outdoor air damper;
calculating a first metric based upon a product of the monitored operating status of the ventilation system and the monitored opening position of the outdoor air damper with a difference of the monitored outdoor temperature and the monitored return air temperature;
calculating a second metric based upon a product of the monitored operating status of the ventilation system with a difference of the supply air temperature and the monitored return air temperature and a difference of a product of the monitored operating status of the ventilation system and the monitored opening position of the outdoor air damper with the difference of the monitored outdoor temperature and the monitored return air temperature; and
controlling the outdoor air damper based upon the calculated first and second metrics.
32. The method of claim 31 , wherein the temperature control system further comprises a plurality of temperature sensors and wherein the method further comprises:
calculating an opening position of the outdoor air damper for a subsequent time period based upon input from the plurality of temperature sensors.
33. The method of claim 31 , wherein the first and second metrics are iteratively calculated over a time period.
34. The method of claim 31 , wherein the first metric is iteratively calculated over a predefined time period, wherein each iteratively calculated first metric is summed together; and wherein the second metric is iteratively calculated over a predefined time period, wherein each iteratively calculated second metric is summed together; and
further controlling the outdoor air damper based upon the summed first and second metrics.
35. The method of claim 31 , wherein the first metric is iteratively calculated over a predefined time period and integrated over the predefined time period to determine a first resultant value, and wherein the second metric is iteratively calculated over a predefined time period and integrated over the predefined time period to determine a second resultant value; and
further controlling the outdoor air damper based upon the first and second resultant values.
36. The method of claim 31 , wherein the temperature control system includes an outdoor air damper further, and wherein the method further comprises:
monitoring a mixed air temperature, wherein the mixed air temperature is monitored in a physical space in gaseous communication with a return air supply and outside air;
calculating an opening position of the outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature; and
wherein the first and second result are determined, in part, based upon the monitored opening position of the outdoor air damper.
37. A thermostat for controlling a temperature control system for a structure, the thermostat comprising:
an indoor temperature sensor configured to monitor indoor air temperature; and
a controller configured to execute the following steps:
monitoring indoor temperature;
monitoring an operating state of the temperature control system;
receiving an outdoor air temperature, and a predicted outdoor air temperature for a subsequent time period;
predicting a space temperature for the subsequent time period;
estimating an operating metric for temperature control system based upon the (a) monitored interior temperature of the structure, (b) outside air temperature, (c) monitored operating state of the temperature control system, (d) predicted space temperature, and (e) predicted outdoor air temperature; and
controlling the temperature control system during the subsequent time period based upon the estimated operating metric.
38. The thermostat of claim 37 , wherein the operating state of the temperature control system is one of an ON operating state or an OFF operating state for each of a heating system, a cooling system, and a ventilation system.
39. The thermostat of claim 37 , wherein the predicting the space temperature is predicted based upon the monitored indoor temperature of a prior defined time period and user-supplied temperature set point(s).
40. The thermostat of claim 37 , wherein the predicting the space temperature is an average temperature of a prior defined time period.
41. The thermostat of claim 37 , wherein the predicting a space temperature is predicted based upon the predicted outdoor air temperature, the monitored outdoor air temperature, and user-supplied temperature set points.
42. The thermostat of claim 37 , wherein the predicting the space temperature is predicted based upon the monitored indoor and outdoor temperature of one or more prior defined time periods, a user-supplied temperature set point(s) associated with the one or more prior defined time periods, and the predicted outdoor air temperature.
43. The thermostat of claim 37 , wherein the predicting a space temperature is calculated using:
(
1
T
1
+
T
2
+
…
+
Tn
)
(
T
1
*
∫
a
1
b
1
(
f
(
x
)
)
1
d
x
b
1
-
a
1
+
T
2
*
∫
a
1
b
1
(
f
(
x
)
)
2
d
x
b
2
-
a
2
+
…
+
Tn
*
∫
an
bn
(
f
(
x
)
)
n
d
x
bn
-
an
)
where
x represents the predicted outdoor air temperature (POADT),
(f(x))1, (f(x))2 . . . (f(x))n represent a function of space temperature,
T1, T2 . . . Tn represent time intervals,
n represents a total number of set point intervals for the time period,
b1, b2, bn represent an ending POADT of the interval, and
a1, a2, an represent a beginning POADT of the interval.
44. The thermostat of claim 37 , wherein the predicting a space temperature is calculated using:
PAST
=
1
t
4
-
t
1
∫
t
1
t
4
ST
(
t
)
d
t
=
1
t
4
-
t
1
[
∫
t
1
t
2
(
YODAT
1
-
Ce
kt
)
d
t
+
∫
t
2
t
3
(
STSP
)
d
t
+
∫
t
3
t
4
(
Ce
kt
+
YODAT
2
)
d
t
]
where
PAST represents the predicting a space temperature,
d
(
ST
)
d
t
represents a rate of change of temperature with respect to time,
STSP represents space temperature set point,
ST represents a space temperature at any time t, wherein ST=STSP when STSP=YODAT1−C e{circumflex over ( )}(kt)
k represents a proportionality constant,
t represents time,
YODAT1 represents the outdoor air temperature plus the value of B at the start of the time interval,
YODAT2 represents the outdoor air temperature plus the value of B at the start of the second time interval, and
C is constant and where
B =(AODAT i −AST i )−(Total_heat_transferred i *M i )
where
AODAT represents average outdoor air temperature, as defined previously,
AST represents average space temperature, as defined previously,
i represents a predetermined interval where each B is calculated, and
M represents a slope of the graph comparing Total_heat_transferred to (AODAT−AST).
45. The thermostat of claim 37 , wherein the predicting the outdoor air temperature is executed based upon received weather forecasting information.
46. The thermostat of claim 37 , wherein the predicting the outdoor air temperature is determined based upon a rolling average of the monitored outdoor air temperature.
47. The thermostat of claim 37 , further comprising:
monitoring a supply air temperature and a return air temperature;
monitoring an operating status of a ventilation system;
monitoring space temperature;
calculating a first average space temperature for a first time period based upon the monitored inside air temperature;
calculating a second average space temperature for a second time period based upon the monitored inside air temperature;
calculating a first average outdoor air temperature for the first time period based upon the monitored outdoor air temperature;
calculating a second average outdoor air temperature for the second time period based upon the monitored outdoor air temperature; and
further controlling the temperature control system based upon the supply air temperature, the return air temperature, the monitored space temperature; the operating status of the ventilation system, the calculated first average space temperature, the calculated second average space temperature, the calculated first average outdoor air temperature, and the calculated second average outdoor air temperature.
48. The thermostat of claim 47 , wherein the temperature control system further includes an outdoor air damper; and wherein the method further includes:
monitoring a mixed air temperature, wherein the mixed air temperature is monitored within a housing of the temperature control, downstream of a return air supply and downstream of outside air;
calculating an opening position of the outdoor air damper based upon the monitored return air temperature, the monitored mixed air temperature, and the monitored outdoor temperature; and
further controlling the temperature control system based upon the monitored opening position.
49. The thermostat of claim 47 , wherein controlling the temperature control system further includes:
iteratively, at defined time periods, summing, for a first result, a product of the monitored operating status of the ventilation system with a difference of the supply air temperature and the monitored return air temperature and a difference of a product of the monitored operating status of the ventilation system and the calculated opening position of the outdoor air damper with a difference of the monitored outdoor temperature and the monitored return air temperature; and
further controlling the temperature control system based upon the iteratively summing.
50. The thermostat of claim 49 , wherein controlling the temperature control system further includes:
iteratively, at defined time periods, summing, for a second result, a product of the monitored operating status of the ventilation system and the monitored opening position of the outdoor air damper with the difference of the monitored outdoor temperature and the monitored return air temperature; and
further controlling the temperature control system based upon the iteratively summing.
51. The thermostat of claim 50 , wherein controlling the temperature control system further includes:
further controlling the temperature control system based upon a sum of the first result and the second result.
52. The thermostat of claim 49 , wherein controlling the temperature control system further includes:
averaging a difference between the first average outdoor air temperature and the first average space temperature subtracted from a product of the sum of the first result and the second result and a variable M calculated by: a difference between the difference of the second average outdoor air temperature for the second time period and the second average space temperature for the second time period and the difference between the first average outdoor air temperature for the first time period and the first average space temperature for the first time period divided by: a difference between the sum of the first result and the second result calculated at the second time period and the sum of the first result and the second result calculated at the first time period.
53. A method for calculating a structure's R-value, the structure having a temperature control system, the method comprising:
monitoring temperature inside the structure and an outdoor air temperature;
monitoring a supply air temperature and a return air temperature;
monitoring an operating status of a ventilation system;
calculating an average space temperature set point for a first time period based upon the monitored inside air temperature;
calculating an average outdoor air temperature for the first time period based upon the monitored outdoor air temperature;
iteratively, at defined time periods, summing, for a first result, a product of the monitored operating status of the ventilation system with a difference of the supply air temperature and the monitored return air temperature and a difference of a product of the monitored operating status of the ventilation system with a difference of the monitored outdoor temperature and the monitored return air temperature;
iteratively, at defined time periods, summing, for a second result, a product of the monitored operating status of the ventilation system with the difference of the monitored outdoor temperature and the monitored return air temperature; and
subtracting the average space temperature set point from the average outdoor air temperature and diving by a sum of the first result and the second result to determine a slope value;
correlating the slope value to an R-value; and
controlling the temperature control system based upon the correlating.
54. A temperature control system for a structure, the system comprising:
an indoor temperature sensor configured to monitor indoor air temperature;
an outdoor temperature sensor configured to monitor outdoor air temperature;
a server configured to monitor an operating state of the temperature control system, wherein the server is further configured for performing the following steps:
predicting a space temperature and an outdoor air temperature for a subsequent time period;
estimating an operating metric for temperature control system based upon the (a) monitored interior temperature of the structure, (b) monitored outside air temperature, (c) monitored operating state of the temperature control system, (d) predicted space temperature, and (e) predicted outdoor air temperature; and
controlling the temperature control system during the subsequent time period based upon the estimated operating metric.
55. The system of claim 54 , wherein the temperature control system further comprises a heating system, a cooling system, and a ventilation system, and wherein the operating state of the temperature control system is one of an ON operating state or an OFF operating state for each of the heating system, the cooling system, and the ventilation system.
56. The system of claim 55 , wherein the predicting the space temperature is predicted based upon the monitored indoor temperature of a prior defined time period and a user-supplied temperature set point.
57. The system of claim 54 , wherein the predicting the space temperature is calculated by one of: (1) an average indoor temperature of a prior defined time period, (2) the predicted outdoor air temperature, the monitored outdoor air temperature, and user-supplied temperature set points, or (3) the monitored indoor and outdoor temperature of one or more prior defined time periods, a user-supplied temperature set point associated with the one or more prior defined time periods, the predicted outdoor air temperature, and the operating state of the temperature control system at each of the one or more prior defined time periods.
58. The system of claim 54 , wherein the predicting the outdoor air temperature is executed based upon one of: (1) received weather forecasting information or (2) determined based upon a rolling average of the monitored outdoor air temperature.
59. The method of claim 11 , wherein at least one monitored value is received via a communication network.
60. The method of claim 11 , wherein at least two devices, collectively, estimate at least one operating metric and are in communication via a communication network.
61. A method for operating a system having a cooling system and ventilation system to vent outside air within a structure, the method comprising:
monitoring an interior temperature of the structure, monitoring an exterior temperature of ambient air outside of the structure;
defining a first time range and a second time range;
associating one or more operating parameters of the system with the first time range;
associating one or more operating parameters of the system with the second time range;
monitoring operational time and operational load of the cooling system for the first time range; and
controlling the ventilation system during the second time range based upon the monitored operational time and operational load of the cooling system in the first time range, and the monitored interior and exterior temperatures.