Information display system for atypical flight phase
First Claim
Patent Images
1. A method for displaying information for one or more aircraft flights, the method comprising:
- for at least one continuously time varying parameter associated with at least one flight phase of each of M aircraft, numbered m=1, . . . , M (M≧
2), providing a polynomial approximation P(t;
m) for the parameter as a polynomial of degree D in a time variable t in a selected time interval for the selected flight phase, where D is at mosr equal to 2;
expressing the polynomial P(t;
m) as p0(m)+p1(m) (t−
t0)+p2(m) (t−
t0)2+error(m), where p0(m), p1(m), p2(m) and error(m) are coefficients associated with the flight phase and with aircraft number m and error(m) is minimized by choice of the coefficients p0(m), p1(m) and p2(m);
for each set of coefficient values {p1(m),pk2(m),pk3(m)), error(m)}m, determining a mean value p(k;
1), a variance p(k;
2), a minimum value and a maximum value for each of the sets of coefficient values;
for each of the M aircraft flights, providing a list of flights that manifest atypical behavior according to one or more specified atypicality criteria, from a comparison with a set of one or more reference values of at least one of the mean, variance, minimum value and maximum value for at least one of the sets of coefficient values;
for at least one atypical phase of the at least one flight in the collection, displaying, in at least one of graphical format and alphanumeric format, variation, with at least one of time or distance traveled, of a selected flight parameter (referred to as an “
atypical phase flight parameter”
) that contributed to the atypical phase for the at least one flight, and displaying, on the same screen, variation of a selected group of flight parameter values, corresponding to the selected atypical phase flight parameter, for flights that were not atypical during the atypical phase; and
graphically displaying variation, with at least one of time and distance traveled, of a flight parameter trace for each of one or more atypical phase flight parameters.
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Abstract
Method and system for displaying information on one or more aircraft flights, where at least one flight is determined to have at least one atypical flight phase according to specified criteria. A flight parameter trace for an atypical phase is displayed and compared graphically with a group of traces, for the corresponding flight phase and corresponding flight parameter, for flights that do not manifest atypicality in that phase.
19 Citations
12 Claims
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1. A method for displaying information for one or more aircraft flights, the method comprising:
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for at least one continuously time varying parameter associated with at least one flight phase of each of M aircraft, numbered m=1, . . . , M (M≧
2), providing a polynomial approximation P(t;
m) for the parameter as a polynomial of degree D in a time variable t in a selected time interval for the selected flight phase, where D is at mosr equal to 2;expressing the polynomial P(t;
m) as p0(m)+p1(m) (t−
t0)+p2(m) (t−
t0)2+error(m), where p0(m), p1(m), p2(m) and error(m) are coefficients associated with the flight phase and with aircraft number m and error(m) is minimized by choice of the coefficients p0(m), p1(m) and p2(m);for each set of coefficient values {p1(m),pk2(m),pk3(m)), error(m)}m, determining a mean value p(k;
1), a variance p(k;
2), a minimum value and a maximum value for each of the sets of coefficient values;for each of the M aircraft flights, providing a list of flights that manifest atypical behavior according to one or more specified atypicality criteria, from a comparison with a set of one or more reference values of at least one of the mean, variance, minimum value and maximum value for at least one of the sets of coefficient values; for at least one atypical phase of the at least one flight in the collection, displaying, in at least one of graphical format and alphanumeric format, variation, with at least one of time or distance traveled, of a selected flight parameter (referred to as an “
atypical phase flight parameter”
) that contributed to the atypical phase for the at least one flight, and displaying, on the same screen, variation of a selected group of flight parameter values, corresponding to the selected atypical phase flight parameter, for flights that were not atypical during the atypical phase; andgraphically displaying variation, with at least one of time and distance traveled, of a flight parameter trace for each of one or more atypical phase flight parameters. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for displaying information for one or more aircraft flights, the system comprising a computer and visually perceptible display that are programmed:
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for at least one continuously time varying parameter associated with at least one flight phase of each of M aircraft, numbered m=1 . . . , M (M≧
2), to provide a polynomial approximation P(t;
m) for the parameter as a polynomial of degree D in a time variable t in a selected time interval for the selected flight phase, where D is at most equal to 2;to express the polynomial P(t;
m) as p0(m)+p1(m) (t−
t0)+p2(m) (t−
t0)2+error(m), where p0(m), p1(m), p2(m) and error(m) are coefficients associated with the flight phase and with aircraft number m and error(m) is minimized by choice of the coefficients p0(m), p1(m) and p2(m);for each set of coefficient values {p1(m),pk2(m),pk3(m)),error(m)}m, to determine a mean value p(k;
1), a variance p(k;
2), a minimum value and a maximum value for each of the sets of coefficient values;for each of the M aircraft flights, to provide a list of flights that manifest atypical behavior according to one or more specified atypicality criteria, from a comparison with a set of one or more reference values of at least one of the mean, variance, minimum value and maximum value for at least one of the sets of coefficient values; for at least one atypical phase of the at least one flight in the collection, to display, in at least one of graphical format and alphanumeric format, variation, with at least one of time or distance traveled, of a selected flight parameter (referred to as an “
atypical phase flight parameter”
) that contributed to the atypical phase for the at least one flight, and to display, on the same screen, variation of a selected group of flight parameter values, corresponding to the selected atypical phase flight parameter, for flights that were not atypical during the atypical phase; andto graphically display variation, with at least one of time or distance traveled, of a flight parameter trace for each of one or more atypical phase flight parameters. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification