Facilitating ambient temperature measurement accuracy in an HVAC controller having internal heat-generating components
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05D-023/19
F24F-011/00
출원번호
US-0871734
(2013-04-26)
등록번호
US-9360229
(2016-06-07)
발명자
/ 주소
Modi, Yash
Matsuoka, Yoky
Filson, John B.
출원인 / 주소
Google Inc.
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
2인용 특허 :
66
초록▼
A thermostat may include one or more temperature sensors, and a processing system configured to be in operative communication with an HVAC system. The processing system may be configured to operate a first operating state characterized by relatively low power consumption and a corresponding relative
A thermostat may include one or more temperature sensors, and a processing system configured to be in operative communication with an HVAC system. The processing system may be configured to operate a first operating state characterized by relatively low power consumption and a corresponding relatively low associated heat generation, and a second operating state characterized by relatively high power consumption and a corresponding relatively high associated heat generation. During time intervals in which the processing system is operating in the first operating state, the processing system may process the temperature sensor measurements according to a first ambient temperature determination algorithm to compute the determined ambient temperature. During time intervals in which the processing system is operating in the second operating state, the processing system may process the temperature sensor measurements according to a second ambient temperature determination algorithm to compute the determined ambient temperature.
대표청구항▼
1. A thermostat, comprising: a housing;a user interface;one or more temperature sensors, each of the one or more temperature sensors being configured to provide temperature sensor measurements, wherein said one or more temperature sensors includes a first temperature sensor, a second temperature sen
1. A thermostat, comprising: a housing;a user interface;one or more temperature sensors, each of the one or more temperature sensors being configured to provide temperature sensor measurements, wherein said one or more temperature sensors includes a first temperature sensor, a second temperature sensor, and a third temperature sensor, each being positioned at different locations relative to the housing; anda processing system disposed within the housing, the processing system being configured to be in operative communication with the one or more temperature sensors to receive the temperature sensor measurements, in operative communication with one or more input devices including said user interface for determining a setpoint temperature, and in still further operative communication with a heating, ventilation, and air conditioning (HVAC) system to control the HVAC system based on a comparison of a determined ambient temperature and the setpoint temperature, wherein said processing system is configured to: (i) operate in a plurality of operating states including a first operating state characterized by relatively low power consumption and a corresponding relatively low associated heat generation and a second operating state characterized by relatively high power consumption and a corresponding relatively high associated heat generation;(ii) during time intervals in which the processing system is operating in the first operating state, process the temperature sensor measurements according to a first ambient temperature determination algorithm based on readings from said first and second temperature sensors and not based on readings from said third temperature sensor to compute the determined ambient temperature; and(iii) during time intervals in which the processing system is operating in the second operating state, process the temperature sensor measurements according to a second ambient temperature determination algorithm based on readings from said third temperature sensor to compute the determined ambient temperature. 2. The thermostat of claim 1, wherein the third temperature sensor is disposed on a portion of the thermostat such that the third temperature sensor is less susceptible to the heating by the processing system than the first temperature sensor. 3. The thermostat of claim 1, wherein the second ambient temperature determination algorithm calculates the determined ambient temperature using (i) temperature measurements provided by the third temperature sensor, and (ii) an offset calculated during the time intervals in which the processing system is operating in the first operating state. 4. The thermostat of claim 1, wherein the thermostat comprises a first modular section and a second modular section, the third temperature sensor being disposed in the first modular section, the first temperature sensor being disposed in the second modular section, and the second temperature sensor being disposed in the second modular section. 5. The thermostat of claim 1, wherein the second temperature sensor is disposed on a portion of the thermostat such that the second temperature sensor is more susceptible to the heating by the processing system than the first temperature sensor and the third temperature sensor. 6. The thermostat of claim 1, wherein the processing system comprises: a low-power processor; anda high-power processor, wherein the high-power processor is configured to calculate temperature thresholds to be stored by the low-power processor, the low-power processor being configured to wake the high-power processor from a sleep state when one or more of the thresholds are violated by the determined ambient temperature. 7. The thermostat of claim 1, wherein during the time intervals in which the processing system is operating in the second operating state, the processing system is further configured to: (i) detect a change in the determined ambient temperature; and(ii) switch from the first ambient temperature determination algorithm to the second ambient temperature determination algorithm after detecting said change in the determined ambient temperature. 8. The thermostat of claim 7, wherein the processing system is further configured to switch from the first ambient temperature determination algorithm to the second ambient temperature determination algorithm after determining that the processing system has been operating in the second operating state for a predetermined time interval. 9. A method of compensating for internal heating in a thermostat, the method comprising: determining, using a processing system of the thermostat, a current operating state of the processing system, wherein the thermostat comprises: a housing;a user interface;one or more temperature sensors, each of the one or more temperature sensors being configured to provide temperature sensor measurements, wherein said one or more temperature sensors includes a first temperature sensor, a second temperature sensor, and a third temperature sensor, each being positioned at different locations relative to the housing; anda processing system disposed within the housing, the processing system being configured to be in operative communication with the one or more temperature sensors to receive the temperature sensor measurements, in operative communication with one or more input devices including said user interface for determining a setpoint temperature, and in still further operative communication with a heating, ventilation, and air conditioning (HVAC) system to control the HVAC system based on a comparison of a determined ambient temperature and the setpoint temperature, wherein said processing system is configured to operate in a plurality of operating states including a first operating state characterized by relatively low power consumption and a corresponding relatively low associated heat generation and a second operating state characterized by relatively high power consumption and a corresponding relatively high associated heat generation;during time intervals in which the processing system is operating in the first operating state, processing the temperature sensor measurements according to a first ambient temperature determination algorithm based on readings from said first and second temperature sensors and not based on readings from said third temperature sensor to compute the determined ambient temperature; andduring time intervals in which the processing system is operating in the second operating state, processing the temperature sensor measurements according to a second ambient temperature determination algorithm based on readings from said third temperature sensor to compute the determined ambient temperature. 10. The method of claim 9, wherein the third temperature sensor is disposed on a portion of the thermostat such that the third temperature sensor is less susceptible to the heating by the processing system than the first temperature sensor. 11. The method of claim 9, wherein the second ambient temperature determination algorithm calculates the determined ambient temperature using (i) temperature measurements provided by the third temperature sensor, and (ii) an offset calculated during the time intervals in which the processing system is operating in the first operating state. 12. The method of claim 9, wherein the thermostat comprises a first modular section and a second modular section, the third temperature sensor being disposed in the first modular section, the first temperature sensor being disposed in the second modular section, and the second temperature sensor being disposed in the second modular section. 13. The method of claim 9, wherein the second temperature sensor is disposed on a portion of the thermostat such that the second temperature sensor is more susceptible to the heating by the processing system than the first temperature sensor and the third temperature sensor. 14. The method of claim 9, wherein the processing system comprises: a low-power processor; anda high-power processor, wherein the high-power processor is configured to calculate temperature thresholds to be stored by the low-power processor, the low-power processor being configured to wake the high-power processor from a sleep state when one or more of the thresholds are violated by the determined ambient temperature. 15. The method of claim 9, further comprising, during the time intervals in which the processing system is operating in the second operating state: detecting a change in the determined ambient temperature; andswitching from the first ambient temperature determination algorithm to the second ambient temperature determination algorithm after detecting said change in the determined ambient temperature. 16. The method of claim 15, wherein the processing system is further configured to switch from the first ambient temperature determination algorithm to the second ambient temperature determination algorithm after determining that the processing system has been operating in the second operating state for a predetermined time interval. 17. A thermostat, comprising: one or more temperature sensors comprising a first temperature sensor, a second temperature sensor, and a third temperature sensor, each of the one or more temperature sensors being configured to provide temperature sensor measurements, the third temperature sensor being located such that it is less susceptible to internal heating effects than the first temperature sensor and the second temperature sensor; anda processing system, the processing system being configured to be in operative communication with the one or more temperature sensors to receive the temperature sensor measurements, and configured to be in operative communication with a heating, ventilation, and air conditioning (HVAC) system to control the HVAC system based on a comparison of a determined ambient temperature and a setpoint temperature, wherein said processing system is configured to: (i) operate in a plurality of operating states including a first operating state characterized by relatively low power consumption and a corresponding relatively low associated heat generation and a second operating state characterized by relatively high power consumption and a corresponding relatively high associated heat generation;(ii) during time intervals in which the processing system is operating in the first operating state, process the temperature sensor measurements according to a first ambient temperature determination algorithm to compute the determined ambient temperature; and(iii) during time intervals in which the processing system is operating in the second operating state, process the temperature sensor measurements according to a second ambient temperature determination algorithm to compute the determined ambient temperature, wherein the second ambient temperature determination algorithm uses temperature sensor measurements from the third temperature sensor. 18. The thermostat of claim 17 wherein the first ambient temperature determination algorithm uses temperature sensor measurements from the first temperature sensor and the second temperature sensor. 19. The thermostat of claim 17 wherein the second temperature sensor is disposed such that the second temperature sensor is more susceptible to internal heating effects than the first temperature sensor and the third temperature sensor. 20. The thermostat of claim 17 wherein the processing system is further configured to switch from the first ambient temperature determination algorithm to the second ambient temperature determination algorithm after determining that the processing system has been operating in the second operating state for a predetermined time interval.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (66)
Dewolf Thomas L. (8139 Portobello Way Liverpool NY 13090) Phillips Thomas R. (6108 Gaspe La. Cicero NY 13041) Bench Ronald W. (8535 Farmgate Path Cicero NY 13041), Active anticipatory control.
Levine Michael R. (Ann Arbor MI), Analog to digital conversion employing the system clock of a microprocessor, the clock frequency varying with analog inp.
Agrawal Prathima ; Chen Jyh-Cheng ; Kishore Shalinee ; Sivalingam Krishna M., CDMA mobile station wireless transmission power management with adaptive scheduling priorities based on battery power level.
Berglund Ulf Stefan,SEX ; Lundberg Bjorn Henry,SEX, Comfort control system incorporating weather forecast data and a method for operating such a system.
Michael Lee Simmons ; Dominick J. Gibino, Energy-saving occupancy-controlled heating ventilating and air-conditioning systems for timing and cycling energy within different rooms of buildings having central power units.
Tamarkin,Tomer D.; Block,Robert S.; Fine,Phillip M., Integrated metrology systems and information and control apparatus for interaction with integrated metrology systems.
Filson, John Benjamin; Daniels, Eric B.; Huppi, Brian, Integrating sensing systems into thermostat housing in manners facilitating compact and visually pleasing physical characteristics thereof.
Williams Christopher D. ; Goldschmidt Iti Jean M. ; Shah-Nazaroff Anthony A. ; Watts E. Michael ; Moore Kenneth Alan ; Hackson David N., Method and apparatus for automatically configuring a system based on a user's monitored system interaction and preferre.
Douglas D. Myron ; Vadim A. Konradi ; Bruce G. Williams ; John J. Fowler ; Timothy W. Woytek ; Jonathan D. Williams ; Gerard L. Cullen, Occupancy sensor and method of operating same.
Kaminski Donald F. (Sidney OH), Storage battery monitoring and recharging control system with automatic control of prime mover driving charging generato.
Chapman, Jr.,John Gilman; Ashworth,Nicholas; Burt,Robert; Wallaert,Timothy E.; Rao,Joseph P., System and method for controlling appliances and thermostat for use therewith.
Kaasten,Shaun A.; Moore,Jason F.; Tubbs,Kenneth M.; Ivanovic,Relja; De Vorchik,David G.; Banks,Richard M.; Miner,Patrice L., System and method for filtering and organizing items based on common elements.
Cheung, Leo; Hublou, Scott Douglas; Steinberg, John Douglas, System and method for using ramped setpoint temperature variation with networked thermostats to improve efficiency.
Hoium Stanley O. ; Freund Peter W., Temperature control system and method for efficiently obtaining and maintaining the temperature in a conditioned space.
Modi, Yash; Matsuoka, Yoki; Filson, John B., Facilitating ambient temperature measurement accuracy in an HVAC controller having internal heat-generating components.
Erickson, Christine R.; Ajax, Michael J.; McCann, Christopher J.; Hjortland, Daniel R.; Seifi, Justin J., Thermostat with heat rise compensation based on wireless data transmission.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.