Systems and methods for monitoring an altitude in a flight vehicle
First Claim
1. A system for monitoring an altitude in a flight vehicle, comprising:
- a barometric altimeter system operable to determine an altitude of the flight vehicle relative to a pressure datum that is adjustably selectable;
at least one altitude determination system that is operable to determine an altitude of the flight vehicle without reference to the selected pressure datum; and
a processor coupled to the barometric altimeter system and to the at least one altitude determination system that is operable to receive altitude information from the barometric altimeter system and the at least one altitude determination system and compare the respective altitude information to determine if an altitude discrepancy exists.
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Accused Products
Abstract
Systems and methods for monitoring an altitude in a flight vehicle are disclosed. In an embodiment, a system includes a barometric altimeter system operable to determine an altitude of the flight vehicle relative to a pressure datum that is adjustably selectable, and at least one altitude determination system that is operable to determine an altitude of the flight vehicle without reference to the selected pressure datum. A processor is coupled to the barometric altimeter system and to the at least one altitude determination system that is operable to receive altitude information from the barometric altimeter system and the at least one altitude determination system to compare the respective altitude information and determine if an altitude discrepancy exists.
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Citations
20 Claims
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1. A system for monitoring an altitude in a flight vehicle, comprising:
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a barometric altimeter system operable to determine an altitude of the flight vehicle relative to a pressure datum that is adjustably selectable;
at least one altitude determination system that is operable to determine an altitude of the flight vehicle without reference to the selected pressure datum; and
a processor coupled to the barometric altimeter system and to the at least one altitude determination system that is operable to receive altitude information from the barometric altimeter system and the at least one altitude determination system and compare the respective altitude information to determine if an altitude discrepancy exists. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for monitoring an altitude in a flight vehicle, comprising:
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a selectively adjustable barometric altimeter system configured to display an altitude of the flight vehicle in response to a selected reference altitude and a sensed static pressure proximate to the flight vehicle;
at least one alternate altitude determination system that is operable to determine an altitude of the flight vehicle that is independent of the sensed static pressure; and
a processor coupled to the barometric altimeter system and to the at least one alternate altitude determination system that is configured to receive an altitude value from the barometric altimeter system and a corresponding altitude value from the at least one alternate altitude determination system and to compare the respective altitude values to determine if a statistically significant difference exists. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of monitoring an altitude of a flight vehicle, comprising:
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selectively adjusting a barometric altimeter system to define an altimeter setting that relates an altitude of the flight vehicle to a selected pressure datum;
acquiring altitude information from at least one alternate altitude determination system that is operable to determine an altitude of the flight vehicle that is independent of the altimeter setting;
assessing a difference between an altitude for the flight vehicle determined by the barometric altimeter system and an altitude determined by the at least one alternate altitude determination system; and
if the difference is greater than a predetermined value, generating a suitable alarm signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification