Intelligent thermostat system for load monitoring a refrigerant-cycle apparatus
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01K-013/00
F25B-041/00
G05D-023/00
출원번호
US-0417609
(2006-05-03)
등록번호
US-7343751
(2008-03-18)
발명자
/ 주소
Kates,Lawrence
출원인 / 주소
Kates,Lawrence
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
41인용 특허 :
64
초록▼
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.
대표청구항▼
What is claimed is: 1. An intelligent thermostat for monitoring the operation of a refrigerant-cycle system, comprising: a display configured to display temperature and system efficiency; and a processing system configured to receive sensor data from one or more condenser unit sensors and one or mo
What is claimed is: 1. An intelligent thermostat for monitoring the operation of a refrigerant-cycle system, comprising: a display configured to display temperature and system efficiency; and a processing system configured to receive sensor data from one or more condenser unit sensors and one or more evaporator unit sensors, said processing system configured to calculate an efficiency of said refrigerant-cycle system using at least a portion of said sensor data from said one or more condenser unit sensors and at least a portion of said sensor data from said one or more evaporator unit sensors, and to display a parameter related to said efficiency, wherein said processing system is configured to diagnose performance problems due to excessive load using at least a portion of said sensor data from said one or more condenser unit sensors and at least a portion of said sensor data from said one or more evaporator unit sensors, wherein said efficiency comprises an actual efficiency based at least in part on an ambient temperature. 2. The intelligent thermostat of claim 1, wherein said processing system is configured to calculate and display an energy cost of using said refrigerant-cycle system. 3. The intelligent thermostat of claim 1, wherein said processing system is configured to calculate and display energy usage of said refrigerant-cycle system. 4. The intelligent thermostat of claim 1, wherein said processing system is configured to diagnose performance problems due to refrigerant overcharge. 5. The intelligent thermostat of claim 1, wherein said processing system is configured to diagnose performance problems due to liquid line restriction. 6. The intelligent thermostat of claim 1, wherein said processing system is configured to identify performance problems due to suction line restriction. 7. The intelligent thermostat of claim 1, wherein said processing system is configured to identify performance problems due to hot gas line restriction. 8. The intelligent thermostat of claim 1, wherein said processing system is configured to identify performance problems due to inefficient compressor operation. 9. The intelligent thermostat of claim 1, wherein said processing system is configured to provide data for plots of energy usage and costs. 10. The intelligent thermostat of claim 1, wherein said processing system is configured to provide data related to operation of said refrigerant-cycle system to a remote monitoring center. 11. The intelligent thermostat of claim 1, wherein said processing system is configured to provide data related to operation of said refrigerant-cycle system to a remote monitoring center using power line networking. 12. The intelligent thermostat of claim 1, wherein said processing system is configured to provide data related to operation of said refrigerant-cycle system to a remote monitoring center using broadband over powerline networking. 13. The intelligent thermostat of claim 1, further comprising an electronically-controlled metering device to allow control of refrigerant into an evaporator in an energy-efficient matter. 14. The intelligent thermostat of claim 1, wherein said intelligent thermostat is configured with data regarding a maximum expected efficiency for the refrigerant-cycle system. 15. The intelligent thermostat of claim 1, wherein said intelligent thermostat is configured with data regarding a type of refrigerant used in the refrigerant-cycle system. 16. The intelligent thermostat of claim 1, wherein said intelligent thermostat is configured with data regarding the characteristics of the condenser. 17. The intelligent thermostat of claim 1, wherein said intelligent thermostat is configured with data regarding the characteristics of the evaporator. 18. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise a temperature sensor configured to measure a temperature of the refrigerant in a suction line. 19. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise a temperature sensor configured to measure a temperature of the refrigerant in a liquid line. 20. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise a temperature sensor configured to measure a temperature of the refrigerant in a hot gas line. 21. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise a pressure sensor configured to measure a pressure of the refrigerant in a suction line. 22. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise a pressure sensor configured to measure a pressure of the refrigerant in a liquid line. 23. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprises a pressure sensor configured to measure a pressure of the refrigerant in a hot gas line. 24. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise at least one refrigerant flow sensor. 25. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise at least one refrigerant contaminant sensor. 26. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprises at least one condenser fan tachometer. 27. The intelligent thermostat of claim 1, wherein said condenser unit sensors comprise at least one temperature sensor configured to measure a temperature of air out of said condenser. 28. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise a temperature sensor to measure a temperature of refrigerant into said evaporator. 29. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise a temperature sensor to measure a temperature of refrigerant out of said evaporator. 30. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise a temperature sensor to measure a temperature of air into said evaporator. 31. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise a temperature sensor to measure a temperature of air out of said evaporator. 32. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise at least one humidity sensor. 33. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise at least one air flow sensor. 34. The intelligent thermostat of claim 1, wherein said evaporator unit sensors comprise at least one differential pressure sensor. 35. The intelligent thermostat of claim 1, further comprising a modem, said intelligent thermostat configured to report performance criteria to a monitoring system using said modem. 36. The intelligent thermostat of claim 1, further comprising a modem, said intelligent thermostat configured to receive shutdown instructions using said modem. 37. The intelligent thermostat of claim 1, further comprising a modem, said intelligent thermostat configured to receive commands using said modem. 38. The intelligent thermostat of claim 1, further comprising a modem, said intelligent thermostat configured to receive operating instructions using said modem.
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