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US 2002/0161514 A1Published application
Navigation assisting system, flight-route calculating method, and navigation assisting method
AssigneeKabushiki Kaisha Toshiba
InventorYuuichi Shinagawa
Life of this patent
Estimating the term…
Abstract
The present invention stores data of the nearest airport where an airplane can take off and land as well as database of an ETOPS-applied time related to this airplane beforehand. When a flight route is set, this ETOPS-applied time is read out. An area having a radius r calculated on the basis of the ETOPS-applied time is defined to be a flight-permitted area. With this, if a desired route entered by the operator is outside this area, an operating port calculates a flight route that can be contained in the flight-permitted area throughout the total flight.
Claims26
A navigation assisting system carried and used on an airplane, comprising:
- memory means for storing a database in which position information of a plurality of airports and information of permission/refusal of take-off/landing of said airplane at said airports correspond to said plurality of airports, respectively, and a regulated time set for said airplane;
- and
- operating means for specifying as a flight-permitted area of said airplane the inside of a circle having as a radius thereof a distance over which said airplane can arrive within said regulated time and also having as a center thereof an airport where said airplane can take off and land, and then calculating a flight route of said airplane in said flight-permitted area.
A navigation assisting system carried and used on an airplane, comprising:
- memory means for storing a database in which position information of a plurality of airports and information of permission/refusal of take-off/landing of said airplane at said airports correspond to said plurality of airports, respectively, and a regulated time set for said airplane;
- and
- operating means for specifying as a flight-permitted area of said airplane the inside of a circle having as a radius thereof a distance over which said airplane can arrive within said regulated time and also having as a center thereof an airport where said airplane can take off and land, and then searching said database for the nearest airport where said airplane can take off and land, to decide whether said airplane is outside said flight-permitted area, based on a relative positional relationship between said airplane and said flight-permitted area for said nearest airport.
A navigation assisting system carried and used on an airplane, comprising:
- memory means for storing a database in which position information of a plurality of airports and information of permission/refusal of take-off/landing of said airplane at said airports correspond to said plurality of airports, respectively, and a regulated time set for said airplane;
- and
- operating means for specifying as a flight-permitted area of said airplane the inside of a circle having as a radius thereof a distance over which said airplane can arrive within said regulated time and also having as a center thereof an airport where said airplane can take off and land, to decide whether said airplane is outside said flight-permitted area, based on a relative positional relationship between said airplane and said flight-permitted area.
A navigation assisting system carried and used an an airplane, comprising;
- memory means for storing a database in which position information of a plurality of airports and information of permission/refusal of take-off/landing of said airplane at said airports correspond to said plurality of airports, respectively, and a regulated time set for said airplane;
- and
- operating means for specifying as a flight-permitted area of said airplane the inside of a circle having as a radius thereof a distance over which said airplane can arrive within said regulated time and also having as a center thereof an airport where said airplane can take off and land, and then setting a decision point at a predetermined distance in a traveling direction of said airplane, to decide whether said decision point is outside said flight-permitted area, based on a relative positional relationship between said decision point and said flight-permitted area.
A navigation assisting system carried and used on an airplane, comprising:
- memory means for storing a database in which position information of a plurality of airports and information of permission/refusal of take-off/landing of said airplane at said airports correspond to said plurality of airports, respectively, and a regulated time set for said airplane;
- and
- operating means for specifying as a flight-permitted area of said airplane the inside of a circle having as a radius thereof a distance over which said airplane can arrive within said regulated time and also having as a center thereof an airport where said airplane can take off and land, and then setting a decision point at a predetermined distance in a traveling direction of said airplane, to decide whether at least one of said airplane and said decision point is outside said flight-permitted area, based on a relative positional relationship between said decision point and said flight-permitted area.
A flight-route calculating method by use of a navigation assisting system carried and used on an airplane, comprising:
- a first step of inputting a desired flight route of said airplane;
- a second step of specifying a flight-permitted area to which said airplane can reach an airport where said airplane can take off and land within a regulated time set for said airplane;
- and
- a third step of calculating a new flight route within said flight-permitted area if said desired flight route is outside a flight-permitted area specified at said second step.
1 more element
A flight-route calculating method by use of a navigation assisting system carried and used on an airplane, comprising:
- a first step of inputting position information of a current position of said airplane and position information of a destination of said airplane;
- a second step of specifying a flight-permitted area to which said airplane can reach an airport where said airplane can take off and land within a regulated time set for said airplane;
- and
- a third step of calculating the shortest flight route connecting said current position and said destination within a flight-permitted area specified by said second step.
1 more element
A navigation assisting method by use of a navigation assisting system carried and used on an airplane, comprising:
- a first step of searching for an airport where said airplane can take off and land;
- a second step of calculating as a flight-permitted area of said airplane the inside of a circle having as a center thereof said nearest airport searched for at said first step and having as a radius thereof a distance over which said airplane can fly within a regulated time set for said airplane;
- and
- a third step of comparing said airplane and a flight-permitted area calculated at said second step in terms of relative positional relationship to thereby decide whether said airplane is outside said flight-permitted area.
1 more element
A navigation assisting method by use of a navigation assisting system carried and used on an airplane, comprising:
- a first step of calculating as a flight-permitted area of said airplane the inside of a circle having as a center thereof an airport where said airplane can take off and land and having as a radius thereof a distance over which said airplane can fly within a regulated time set for said airplane;
- and
- a second step of comparing said airplane and a flight-permitted area calculated at said first step in terms of relative positional relationship to thereby decide whether said airplane is outside said flight-permitted area.
A navigation assisting method by use of a navigation assisting system carried and used on an airplane, comprising;
- a first step of calculating as a flight-permitted area of said airplane the inside of a circle having as a center thereof an airport where said airplane can take off and land and having as a radius thereof a distance over which said airplane can fly within a regulated time set for said airplane;
- and
- a second step of comparing a decision point set at a predetermined distance in a traveling direction of said airplane and a flight-permitted area calculated at said first step in terms of a relative positional relationship to thereby decide whether said decision point is outside said flight-permitted area.
A navigation assisting method by use of a navigation assisting system carried and used on an airplane, comprising:
- a first step of calculating as a flight-permitted area of said airplane the inside of a circle having as a center thereof an airport where said airplane can take off and land and having as a radius thereof a distance over which said airplane can fly within a regulated time set for said airplane;
- and
- a second step of comparing a decision point set at a predetermined distance in a traveling direction of said airplane and a flight-permitted area calculated at said first step in terms of a relative positional relationship to thereby decide whether at least one of said airplane and said decision point is outside said flight-permitted area.
Dependencies are inferred from the claim text.