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    • 3. 发明授权
    • Method and apparatus for operating a thermostat to provide an automatic changeover
    • 用于操作恒温器以提供自动切换的方法和装置
    • US06681848B2
    • 2004-01-27
    • US09960128
    • 2001-09-21
    • Robert Louis Breeden
    • Robert Louis Breeden
    • F24F1100
    • G05D23/1917F24F11/30F24F11/62F24F11/65G05D23/1951
    • A method and apparatus defines (302) a time period Ps following a completion of a demand for one of heating and cooling, the time period sufficient to allow a sensed room temperature Tr measured (309) by a thermostat (500) to stabilize after the completion of the demand; and records (310) an evaluation temperature Te equal to the sensed room temperature measured at an end of the time period. The method and apparatus determines (318, 320, 324, 326), at a future time after recording the evaluation temperature, whether to allow an automatic changeover between heating and cooling modes, based upon a comparison of the evaluation temperature and the sensed room temperature measured at the future time.
    • 一种方法和装置在完成对加热和冷却之一的需求的完成之后界定(302)时间段Ps,足以允许由恒温器(500)测量的感测室温Tr(309)在 完成需求; 并且记录(310)等于在时间段结束时测量的感测室温的评估温度Te。 该方法和装置在记录评估温度之后的未来时间,基于评估温度和感测到的室温的比较来确定是否允许加热和冷却模式之间的自动切换(318,320,324,326) 在未来时间测量。