FLIGHT TRAINING AND SYNTHETIC VISUALIZATION SYSTEM AND METHOD

• US 20110171611A1
• Filed: 12/07/2010
• Published: 07/14/2011
• Est. Priority Date: 07/22/2005
• Status: Active Grant

• Current Assignee: Appareo Systems LLC (AGCO Corporation)
• Original Assignee: Appareo Systems LLC (AGCO Corporation)
• Inventors: Ohlsen, Tyler Chris, Batcheller, Barry Douglas
• Granted Patent: US 8,081,921 B2
• Time in Patent Office: Days
• US Class Current: 434/35
• CPC Class Codes: G09B 19/165 Control of aircraft
• CPC Class Codes: G09B 9/08 for teaching control of aircraft, e.g. Link trainer

Abstract

A low-cost training and synthetic visualization system and method directed to improving an individual'"'"'s airborne performance in general aviation, skydiving, and other aerial applications. The system is comprised of a self-contained mobile sensor and data storage device for recording the travel path, orientation, and forces acting upon an object as it moves through space, a desktop graphics software program for creating a playback of the recorded data on a three-dimensional representation of the environment through which the object moved, a means of linking the sensor and data storage device to the software program for the purpose of exchanging information, and a centralized data storage and retrieval system designed to accept, assimilate and redistribute the recorded data.

Claims

1. A method of detecting, recording, coprocessing and simultaneously displaying aircraft flight data and corresponding terrain data, which method comprises the steps of:

providing a self-contained mobile data recording unit (MDRU) on the aircraft;

providing said MDRU with an MDRU microprocessor;

gathering with said MDRU microprocessor flight data including navigation and flight information captured by said MDRU;

providing said MDRU with a computer readable media and storing said navigation and flight information on said MDRU computer readable media;

computing a 3-D recreation of a flight path of the aircraft based on said navigational and flight information;

computing a digital terrain model for an area of the Earth'"'"'s surface including at least a portion of the flight path;

generating a 3-D display of said 3-D recreation including;

said terrain model;

a representation of the aircraft superimposed on the terrain model; and

a data ribbon representing the flight path superimposed on the terrain model;

computing altitude readings from said navigational and flight information at pre-defined intervals along the flight path;

using said altitude readings and said navigational and flight information to compute a 3-D display comprising a vertical synthetic flight wall extending downwardly from said flight path data ribbon to a ground level on said terrain model;

subdividing said flight wall graphically into a vertically-oriented checkerboard configuration comprising multiple rectangular segments separated by multiple, horizontally-spaced vertical striations each representing a pre-defined horizontal distance and multiple, vertically-stacked horizontal striations each representing a pre-defined vertical distance, said pre-defined vertical and horizontal distances corresponding to altitude and distance of travel along said flight path respectively;

dynamically displaying in 3-D on said display device said flight wall including said vertical and horizontal striations below said flight path data ribbon;

dynamically displaying in 3-D on said display device with said graphics software engine the progress along said flight path of the aircraft on top of said flight wall and over said terrain model; and

dynamically displaying aircraft altitudes at respective rectangular segments along said flight path.

2. The method of claim 1, which includes the additional steps of:

providing an inertial measurement sensor (IMS) on the aircraft;

sensing orientation of the aircraft and generating orientation signals representing its orientation with said IMS;

inputting said orientation signals to said computer; and

computing said flight path using said orientation signals.

3. The method of claim 2 wherein said IMS includes yaw, pitch and roll sensors, which method includes the additional steps of:

continuously sensing 3-D orientation of the aircraft with said IMS;

generating orientation signals with said IMS corresponding to the yaw, pitch and roll of the aircraft; and

outputting said orientation signals from said IMS as input to said microprocessor.

4. The method of claim 1, which method includes the additional steps of:

generating 3-D, GNSS-based aircraft position signals;

inputting said aircraft position signals to said microprocessor; and

computing a data ribbon representing said flight path using said aircraft position signals.

5. The method of claim 1 wherein said 3-D display comprises a moving video representation of said aircraft progressively moving along said flight path data ribbon.

6. The method of claim 1, which includes the additional steps of:

interfacing said microprocessor with an image/map database including 3-D terrain images comprising satellite or aerial photos or photo tiles;

computing with said microprocessor an area of the Earth'"'"'s surface including at least a portion of the flight path; and

downloading satellite or aerial photos or photo tiles for said calculated area of the Earth'"'"'s surface from said image/map database to said microprocessor.

7. The method of claim 1, which includes the additional steps of:

providing said computer with a graphics software engine;

gathering weather pattern information;

creating with said graphics software engine a display comprising a graphical representation of said weather pattern information; and

displaying with said display device said graphical representation of said weather pattern information superimposed on said 3-D recreation.

8. The method of claim 1, which includes the additional steps of:

gathering special airspace type information;

creating with said graphics software engine a display comprising a graphical representation of said special airspace type; and

displaying with said display device said graphical representation of said special airspace type superimposed on said 3-D recreation.

9. The method of claim 1, which includes the additional steps of:

collecting navigational and flight information in-flight with said computer;

providing a secondary computer;

connecting said secondary computer to said aircraft computer; and

post-processing said navigational and flight information and displaying said 3-D recreation with said secondary computer after a flight is completed.

10. The method of claim 9 wherein said secondary computer comprises a handheld device and said method includes the additional step of:

processing in real time during said flight said navigational and flight information and displaying said 3-D recreation on said handheld device.

11. The method of claim 1 wherein said aircraft representation comprises a primary aircraft model, which method includes the additional steps of:

generating a secondary ghost image model of the aircraft;

computing an ideal flight path corresponding to locations of said secondary ghost image aircraft model;

superimposing on said 3-D display said secondary ghost image model in relation to said primary aircraft image model; and

displaying with said display device discrepancies between said ideal flight path and the actual flight path by simultaneously and dynamically displaying the positions of said primary and secondary aircraft image models relative to each other and the flight wall.

12. A method of sensing and computing aircraft flight data associated with an aircraft flight path, and simultaneously displaying an aircraft flight path, flight wall and terrain model for a flight, which method comprises the steps of:

generating signals representative of a 3-D, GNSS-based flight path of said aircraft with said position detector;

providing a computer including a microprocessor on the aircraft and connected to the IMS and the position detector;

providing a digital terrain model of a portion of the Earth'"'"'s surface including at least a portion of the flight path;

computing a 3-D display of said flight path including;

said terrain model;

a primary aircraft image model superimposed on and simulating movement relative to the terrain model; and

a data ribbon representing the flight path superimposed on the terrain model;

computing with said altitude readings and said navigational and flight information a 3-D vertical flight wall extending downwardly from said flight path data ribbon to a ground level on said terrain model;

providing a display device and connecting said display device to said microprocessor;

displaying with said display device said 3-D display with said primary aircraft image model on top of said flight wall and said aircraft altitudes over said terrain model;

generating a secondary ghost image model of the aircraft;

computing an ideal flight path corresponding to locations of said secondary ghost image aircraft model;

superimposing on said 3-D display said secondary ghost image model in relation to said primary aircraft image model;

displaying with said display device discrepancies between said ideal flight path and the actual flight path by simultaneously and dynamically displaying the positions of said primary and secondary aircraft image models relative to each other and the flight wall;

collecting navigational and flight information in-flight with said computer;

providing a secondary computer;

connecting said secondary computer to said aircraft computer; and

post-processing said navigational and flight information and displaying said 3-D recreation with said secondary computer after a flight is completed.

13. A system for simulating an aircraft flight, which system comprises:

an inertial measurement sensor (IMS) installed on the aircraft and adapted for sensing orientation of the aircraft and generating orientation signals;

a global navigation satellite system (GNSS) position detector installed on the aircraft and adapted for generating signals representative of a 3-D, GNSS-based flight path of said aircraft;

a computer including a microprocessor installed on the aircraft and connected to the IMS and the position detector;

said microprocessor being connected to and receiving input signals comprising navigational and flight information from said IMS and said GNSS position detector;

said computer being adapted for receiving a digital terrain model of a portion of the Earth'"'"'s surface including at least a portion of the flight path;

said computer being adapted for computing a 3-D display of said flight path including;

said terrain model;

a model of the aircraft superimposed on and simulating movement relative to the terrain model; and

a data ribbon representing the flight path superimposed on the terrain model;

said computer being adapted for computing altitude readings from said navigational and flight information at predetermined intervals along the flight path;

said computer being adapted for computing with said altitude readings and said navigational and flight information a 3-D vertical flight wall extending downwardly from said flight path data ribbon to a ground level on said terrain model;

said flight wall being subdivided graphically into a checkerboard configuration comprising multiple rectangular segments each representing a pre-defined horizontal and vertical distance corresponding to altitude and distance of travel along said flight path respectively; and

a display device connected to said microprocessor and adapted for displaying said 3-D display with said aircraft model on top of said flight wall and said aircraft altitudes over said terrain model.

14. The aircraft flight simulation system according to claim 13, which includes:

a graphics software engine installed on said computer and adapted for generating said 3-D display including a moving video representation of the aircraft progressively moving along the flight path data ribbon.

15. The aircraft flight simulation system according to claim 13, which includes:

said computer comprising a primary computer; and

a secondary computer adapted for connection to said primary computer and post-processing sent navigational and flight information and displaying said 3-D recreation after a flight is completed.

16. The aircraft flight simulation system according to claim 13 wherein said secondary computer comprises a handheld device adapted for processing in real-time during said flight said navigational and flight information and displaying said 3-D recreation on said handheld device.