Remote data acquisition system and method
AssigneeCopeland Corporation
InventorNagaraj Jayanth
Life of this patent
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Abstract
A data acquisition system and method includes monitoring a cooling system having a refrigerant compressor, evaporator, and condensor, and employs a number of sensors to monitor various operating parameters of the system. A database stores predefined operating parameters for a plurality of cooling systems. The operating parameters are provided to a computer, which compares the provided operating parameters of the monitored cooling system with the predefined operating parameters to provide diagnostic results for the monitored cooling system.
Claims45
A data acquisition system for monitoring a cooling system including a microcontroller, a refrigerant compressor, evaporator, and condenser, said data acquisition system comprising:
- a database including predefined operating parameters for a plurality of cooling systems, said predefined operating parameters including compressor type and refrigerant type;
- a computer having an input for receiving a monitored operating parameter, in communication with the microcontroller to receive said monitored operating parameter and in communication with said database to compare said monitored operating parameter with said predefined operating parameters of one of the plurality of cooling systems;
- and
- a first sensor in communication with the microcontroller and adapted to sense a superheat value of the cooling system;
- wherein said monitored operating parameter includes at least said superheat, said computer being operable to diagnose the cooling system based on comparing said monitored operating parameter to said predefined operating parameters.
A data acquisition system for monitoring a cooling system including a microcontroller, a refrigerant compressor, evaporator, and condenser, said data acquisition system comprising:
- a database including predefined operating parameters for a plurality of cooling systems, said predefined operating parameters including compressor type and refrigerant type;
- a computer having access to said database and input for receiving a monitored operating parameter, said computer in communication with the microcontroller to receive said monitored operating parameter;
- a first sensor in communication with the microcontroller and adapted to sense a superheat value of the cooling system;
- and
- wherein said monitored operating parameter includes at least said superheat value, and said computer being operable to compare said monitored operating parameter to said predefined operating parameters to diagnose the cooling system.
A data acquisition system for monitoring a cooling system including a microcontroller, or refrigerant compressor, evaporator, and condenser, said data acquisition system comprising:
- a database including predefined operating parameters defined by compressor type, refrigerant type and expansion device type, said database disposed at a location remote from the microcontroller;
- a computer having an input for receiving a monitored operating parameter and in communication with said database via the Internet to receive said predefined operating parameters;
- a first sensor in communication with the microcontroller and adapted the sense of first operating parameter of the cooling system;
- and
- a diagnostic module operable by said computer to compare said monitored operating parameter to said predefined operating parameters and output a diagnosis for the cooling system.
A method for monitoring a system including a refrigerant compressor, evaporator, and condenser, said method comprising:
- measuring a superheat value of the monitored system;
- measuring a motor current value of the monitored system;
- selecting a set of predefined operating parameters for a model system based on compressor type and refrigerant type from a database including predefined operating parameters for a plurality of model systems;
- comparing said set of predefined operating parameters with said measured superheat and motor current values of the monitored system;
- and
- outputting diagnostic results from said comparison.
Dependencies are inferred from the claim text.