Title:
SYSTEM AND METHOD FOR TEMPERATURE CONTROL IN REFRIGERATION SYSTEMS AND HEATING SYSTEMS
Document Type and Number:
WIPO Patent Application WO2004025388
Kind Code:
A9
Abstract:
The present invention provides systems and methods for temperature control in vending machines with refrigeration systems, such as beverage coolers, and heating systems, such as coffee dispensers. In an embodiment of the present invention, a control unit of a refrigeration system in accordance with the present invention receives and records activity data such as door openings and/or human presence detection in the vicinity of the refrigeration system, and then establishes the beginning and end times of an energy saving mode for the refrigeration system over a period of time, such as a week. The control unit calculates the time restart the compressor cycle at the end of the energy saving mode so that the product will be at the correct temperature at the time of first usage. As part of the energy saving function, the lamps and fans in the refrigeration system are controlled independently by the control unit according to the learned usage pattern.
Inventors:
KING EDDIE W
MAZEREEUW GEORGE
MAZEREEUW GEORGE
Application Number:
PCT/US2003/029217
Publication Date:
April 29, 2004
Filing Date:
September 15, 2003
Export Citation:
Assignee:
COCA COLA CO (US)
International Classes:
F25D29/00; G05D23/00; G05D23/19; G07F13/06; F25D11/00; (IPC1-7): G05D23/19; G07F9/10; G05B13/02
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