US 8,285,478 B2Granted

Method for optimizing the display of data relating to the risks presented by obstacles

AssigneeThales

InventorMichel Subelet

Life of this patent

Estimating the term…

Loading patent…

Abstract

The invention relates to a method for optimizing the display of data relating to the risks associated with obstacles. The method includes extracting from an obstacle database, a list of obstacles included in the geographic zone defined by the range, the orientation and the position of the aircraft. Obstacle related information and warning lists are received. The obstacle list is regrouped by applying to the obstacles criteria relating to the proximity of the obstacles relative to the aircraft; to the proximity of the obstacles to one another; and to their warning level. The symbology adapted to the obstacle display is generated. In particular, the invention applies to optimizing the display of warnings relating to the risks of collision with point-like or linear obstacles.

Claims18

Dependent claims

A method for optimizing an obstacle-related data display receiving information necessary to define a zone comprising the obstacles to be displayed, comprising the following steps:

extracting from an obstacle database, a list of obstacles included in a geographic zone defined by a range, the orientation and a position of an aircraft;
receiving an information list and an obstacle-related warning list generated by an obstacle collision prediction and warning device;
filtering and regrouping via an obstacle filtering device the obstacles of the obstacle list by applying to the obstacles criteria relating:
to a proximity of the obstacles relative to the aircraft;
to a proximity of the obstacles to one another;
to a warning level;
generating a symbology adapted to the obstacle display,
wherein the filtering and regrouping step comprises a filtering step, said filtering step comprising the following steps:
a step of initializing a variable n at the value of the smallest possible position of an obstacle in the list of obstacles filtered according to their elevation;
a step of extracting an obstacle O(n) whose position in the list of obstacles filtered according to their elevation is equal to n;
a step of initializing a variable p, fixed at one unit;
a step of extracting an obstacle O(n+p) whose position in the list of obstacles filtered according to their elevation is equal to n+p,
a step of comparing a distance d(O(n),O(n+p)) between the obstacle O(n) and the obstacle O(n+p) with the minimum distance D:
when the distance d(O(n),O(n+p)) is greater than or equal to the minimum distance D, there is a move to a step of incrementing the index p by a unit;
when the distance d(O(n),O(n+p)) is less than the minimum distance D, there is a move to a step of searching.

12 more elements

A method for optimizing an obstacle-related data display receiving information necessary to define a zone comprising the obstacles to be displayed, comprising the following steps:

extracting from an obstacle database, a list of obstacles included in a geographic zone defined by a range, the orientation and a position of an aircraft;
receiving an information list and an obstacle-related warning list generated by an obstacle collision prediction and warning device;
filtering and regrouping via an obstacle filtering device the obstacles of the obstacle list by applying to the obstacles criteria relating:
to a proximity of the obstacles relative to the aircraft;
to a proximity of the obstacles to one another;
to a warning level;
generating a symbology adapted to the obstacle display,
wherein the filtering and regrouping step comprises a filtering step, said filtering step comprising the following steps:
a step of initializing a variable n at the value of the smallest possible position of an obstacle in the list of obstacles filtered according to their elevation;
a step of extracting an obstacle O(n) whose position in the list of obstacles filtered according to their elevation is equal to n;
a step of initializing a variable p, fixed at one unit;
a step of extracting an obstacle O(n+p) whose position in the list of obstacles filtered according to their elevation is equal to n+p,
a step of comparing a distance d(O(n),O(n+p)) between the obstacle O(n) and the obstacle O(n+p) with the minimum distance D:
when the distance d(O(n),O(n+p)) is greater than or equal to the minimum distance D, there is a move to a step of incrementing the index p by a unit;
when the distance d(O(n),O(n+p)) is less than the minimum distance D, there is a move to a step of searching.

12 more elements

Dependencies are inferred from the claim text.