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    • 1. 发明公开
    • Systems and methods for intelligent alerting for cabin altitude depressurization
    • Systeme und Verfahren zur smarten Meldung einesKabinendruckhöheabfalls
    • EP1894838A1
    • 2008-03-05
    • EP07115096.5
    • 2007-08-28
    • Honeywell International Inc.
    • Conner, Kevin J.Ishihara, YasuoBateman, Charles, Donald.
    • B64D13/02B64D45/00G01L9/12G08B21/18
    • B64D13/02
    • Methods and systems for providing a depressurization alert. An example method includes receiving a cabin depressurization discrete signal, determining if the cabin depressurization discrete signal is valid, and issuing a cabin depressurization alert, if the cabin depressurization discrete signal was determined to be valid. In accordance with further aspects of the invention, a time delay is executed before the receiving, determining, and issuing steps are repeated. The cabin depressurization discrete signal is determined not valid if uncorrected pressure is not greater than a predefined altitude. The uncorrected pressure is a raw pressure value produced by a Pitot-Static system (40). Also, the cabin depressurization discrete signal is determined not valid if the aircraft's altitude above an intended runway is not greater than a first predefined value. Additionally, the cabin depressurization discrete signal is determined not valid if an aircraft's altitude above terrain is not greater than a second predefined value.
    • 提供减压警报的方法和系统。 一种示例性方法包括:如果客舱减压离散信号被确定为有效,则接收客舱减压离散信号,确定客舱减压离散信号是否有效,以及发出客舱减压警报。 根据本发明的其它方面,在重复接收,确定和发出步骤之前执行时间延迟。 如果未校正的压力不大于预定高度,则舱室减压离散信号被确定为无效。 未校正的压力是由Pitot-Static系统(40)产生的原始压力值。 此外,如果飞机在预期跑道上方的高度不大于第一预定值,则确定舱室减压离散信号无效。 另外,如果飞机在地形上方的高度不大于第二预定义值,则机舱减压离散信号被确定为无效。