Aircraft navigation system and method for aircraft navigation
First Claim
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1. An aircraft navigation system comprising:
- a navigation-map data source, navigation-map data provided by the navigation-map data source including information about a multitude of objects O on earth surface which are of high potential visibility and high potential identifiability from positions elevated relative to the earth surface, each information for an object Oϵ
O including a position and a type of the respective object O;
a first system for measuring an actual aircraft position P(t) at time t;
a waypoint data source providing a plurality of waypoints WPi defining an aircraft intended flight track, wherein i is an integer and WPi represents one of the plurality of waypoints;
a second system for selecting per waypoint WPi one object Oi(WPi) with Oi(WPi)ϵ
O depending on given selection criteria, wherein Oi(WPi) represents an object Oi selected for the waypoint WPi and is one of the multitude of objects O; and
a display for displaying an information I(Oi(WPi) referring the selected object Oi(WPi), wherein I(Oi(WPi) represents information I referring to the object Oi selected for the waypoint WPi,wherein a ranking index of each object Oϵ
O concerning its potential visibility and potential identifiability is based on at least one of the following;
a relative size of the object O compared to an environment E(O) of the object O;
a visible brightness contrast;
a visible colour contrast between the object O and the environment E(O) of the object O;
ora geometric shape of the object O, andwherein the selection criteria considera distance di,n between a waypoint WPi and positions of neighbouring objects On(WPi) being positioned within a given maximum distance from the respective waypoint WPi, with Onϵ
O, wherein n is an integer, On(WPi) is one of objects from the plurality of object O within the given maximum distance from the waypoint WPi, di,n is a distance a given object On and the waypoint WPi, and wherein On is a sub-set of the set O, and/orthe ranking index of the neighbouring objects On(WPi) concerning their potential visibility and potential identifiability.
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Abstract
An aircraft navigation system and a method for aircraft navigation is presented. The aircraft navigation system has a navigation-map data source, navigation-map data provided by the navigation-map data source including information about a multitude of objects O on earth surface which are of high potential visibility and high potential identifiability from elevated positions, each information for an object OϵO including a position and a type of the respective object O; a first system for measuring an actual aircraft position P(t); a waypoint data source providing waypoints WPi defining an aircraft intended flight track; a second system for selecting per waypoint WPi one object Oi(WPi) with Oi(WPi)ϵO depending on given selection criteria; and a display for displaying an information I(Oi(WPi) referring the selected object Oi(WPi).
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Citations
14 Claims
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1. An aircraft navigation system comprising:
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a navigation-map data source, navigation-map data provided by the navigation-map data source including information about a multitude of objects O on earth surface which are of high potential visibility and high potential identifiability from positions elevated relative to the earth surface, each information for an object Oϵ
O including a position and a type of the respective object O;a first system for measuring an actual aircraft position P(t) at time t; a waypoint data source providing a plurality of waypoints WPi defining an aircraft intended flight track, wherein i is an integer and WPi represents one of the plurality of waypoints; a second system for selecting per waypoint WPi one object Oi(WPi) with Oi(WPi)ϵ
O depending on given selection criteria, wherein Oi(WPi) represents an object Oi selected for the waypoint WPi and is one of the multitude of objects O; anda display for displaying an information I(Oi(WPi) referring the selected object Oi(WPi), wherein I(Oi(WPi) represents information I referring to the object Oi selected for the waypoint WPi, wherein a ranking index of each object Oϵ
O concerning its potential visibility and potential identifiability is based on at least one of the following;a relative size of the object O compared to an environment E(O) of the object O; a visible brightness contrast; a visible colour contrast between the object O and the environment E(O) of the object O;
ora geometric shape of the object O, and wherein the selection criteria consider a distance di,n between a waypoint WPi and positions of neighbouring objects On(WPi) being positioned within a given maximum distance from the respective waypoint WPi, with Onϵ
O, wherein n is an integer, On(WPi) is one of objects from the plurality of object O within the given maximum distance from the waypoint WPi, di,n is a distance a given object On and the waypoint WPi, and wherein On is a sub-set of the set O, and/orthe ranking index of the neighbouring objects On(WPi) concerning their potential visibility and potential identifiability. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for aircraft navigation, the method comprising:
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providing navigation-map data including information about a multitude of objects O on earth surface which are of high potential visibility and high potential identifiability from positions elevated relative to the earth surface, each information for an object Oϵ
O including a position and a type of the respective object O;measuring an actual aircraft position P(t) at time t; providing a plurality of waypoints WPi determining an aircraft intended flight track, wherein i is an integer and WPi represents one of the plurality of waypoints; selecting one object Oi(WPi) per waypoint WPi, with Oi(WPi)ϵ
O depending on given selection criteria wherein Oi(WPi) represents an object Oi selected for the waypoint WPi and is one of the multitude of objects O; anddisplaying an information I(Oi(WPi) referring the selected object Oi(WPi) wherein I(Oi(WPi) represents information I referring to the object Oi selected for the waypoint WPi, wherein a ranking index of each object Oϵ
O concerning its potential visibility and potential identifiability is based on at least one of the following;a relative size of the object O compared to an environment E(O) of the object O; a visible brightness contrast; a visible colour contrast between the object O and the environment E(O) of the object O;
ora geometric shape of the object O, and wherein the selection criteria consider a distance di,n between a waypoint WPi and positions of neighbouring objects On(WPi) positions of neighbouring objects On(WPi) being positioned within a given maximum distance from the respective waypoint WPi, with Onϵ
O, wherein n is an integer, On(WPi) is one of objects from the plurality of object O within the given maximum distance from the waypoint WPi, di,n is a distance a given object On and the waypoint WPi, and wherein On is a sub-set of the set O, and/orthe ranking index of the neighbouring objects On(WPi) concerning their potential visibility and potential identifiability. - View Dependent Claims (14)
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Specification
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Current AssigneeAirbus Defence and Space GmbH (Airbus SE)
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Original AssigneeAirbus Defence and Space GmbH (Airbus SE)
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InventorsHeinzinger, Olaf, Oberhauser, Matthias, Mamessier, Sebastien, Fernandes De Oliveira, Rafael, Dreyer, Daniel
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Primary Examiner(s)Lau, Hoi C
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Application NumberUS15/580,083Publication NumberTime in Patent Office1,181 DaysField of SearchUS Class CurrentCPC Class CodesB64D 43/00 Arrangements or adaptations...G01C 23/005 Flight directors indicating...G08G 5/0047 Navigation or guidance aids...
