SYSTEMS, METHODS, AND COMPUTER READABLE MEDIA FOR PROTECTING AN OPERATOR AGAINST GLARE

• US 20140039730A1
• Filed: 07/17/2013
• Published: 02/06/2014
• Est. Priority Date: 07/17/2012
• Status: Active Grant

• Current Assignee: Airbus
• Original Assignee: Airbus
• Inventors: LOUBIERE, Vincent
• Granted Patent: US 9,566,946 B2
• Time in Patent Office: Days
• US Class Current: 701/3
• CPC Class Codes: B60R 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: B64C 1/1476 Canopies; Windscreens or similar transparent elements
• CPC Class Codes: B64D 45/00 Aircraft indicators or protectors not otherwise provided for camouflage F41H3/00
• CPC Class Codes: B64D 47/00 Equipment not otherwise provided for
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 27/01 Head-up displays

Abstract

Systems, methods and computer readable media for protecting a pilot of an aircraft or an operator of a vehicle against glare from a luminous object. A system for attenuating glare experienced by an operator of a vehicle is provided with a transparent display unit or screen with adjustable pixels that is interposed between an operator of a vehicle and all or part of a windshield of the vehicle, and a device to control pixel intensity to attenuate glare from a luminous object. A system is provided with a positioning module for determining the position of the operator inside the vehicle, and for determining the position of at least one luminous object outside the vehicle that is a source of glare experienced by the operator. A system is provided with a computing device for computing a glare line between the operator and luminous object and the position of the display screen where the glare line intersects the display unit.

Claims

1. A system for attenuating glare, comprising:

a display unit interposed between an operator of a vehicle and all or part of a windshield of the vehicle;

a controller for controlling the display unit,

a positioning module for determining a position of the operator inside the vehicle, and for determining a position of at least one luminous object outside the vehicle that is a source of glare;

a computing platform for computing a glare line between the operator and luminous object and the position of the display unit where the glare line intersects the display unit; and

wherein the computing platform is configured to communicate to the controller the position of the display unit where the glare line intersects the display unit and the controller is configured to cause the display unit at the position of the intersection to darken thereby attenuating the glare.

2. The system of claim 1, further comprising a positioning controller, wherein the positioning controller is in communication with the positioning module.

3. The system of claim 2, wherein the positioning controller comprises a global positioning system.

4. The system of claim 3, wherein the positioning controller is configured to determine the position of at least one luminous object outside the vehicle in a first reference frame, wherein the origin of the first reference frame coincides with the location of the operator inside the vehicle, wherein the positioning controller is configured to determine the position of at least one luminous object outside the vehicle in a second reference frame, wherein the origin of the second reference frame coincides with the location of the global positioning system, and wherein the position of the luminous object is then calculated with respect to the first reference frame through a coordinate change.

5. The system of claim 2, wherein the positioning controller comprises a first camera, wherein the camera determines the location of the luminous object outside the vehicle in a first reference frame on the basis of data of images provided by the said first camera, wherein the origin of the first reference frame coincides with the location of the operator inside the vehicle.

6. The system of claim 5, wherein the computing platform determines the position of the luminous object outside the vehicle in a third reference frame having an origin in the first camera, and then determines the position of the luminous object outside the vehicle in a first reference frame having an origin in the operator through a coordinate change.

7. The system of claim 5, wherein the computing platform performs a threshold analysis of the images provided by the first camera based on a predetermined grey level threshold, wherein the glare from a luminous source is attenuated when the threshold level is exceeded.

8. The system of claim 5, wherein the positioning module for determining the position of at least one luminous object outside the vehicle further comprises a second camera.

9. The system of claim 2, wherein the positioning controller comprises a camera having eye or facial recognition capabilities to determine the position of the operator of the vehicle.

10. The system of claim 2, wherein the positioning controller comprises a gyroscope or accelerometer within a head wearable member worn by the operator of the vehicle to determine the position of the operator of the vehicle.

11. The system of claim 1, further comprising a photodetection device for detecting the presence of a luminous object outside the vehicle, wherein the photodetection device is configured to produce a voltage amplitude proportional to the brightness of the luminous object, wherein the pixel controller is powered up only on condition that the voltage produced by the photodetection device is greater than a predetermined detection threshold.

12. The system of claim 1, wherein the display unit further comprising a photovoltaic film configured to detect light from an exterior of the vehicle, wherein the display unit darkens to control the luminosity of the interior of the vehicle in accordance with the brightness of the exterior of the vehicle.

13. An aircraft or spacecraft equipped with the system of claim 1.

14. A method for attenuating glare experienced by an operator of a vehicle, the method comprising:

determining a vehicle operator position;

determining a position of a luminous object that is a source of glare by communicating with a global positioning system;

calculating a glare line between the vehicle operator position and the position of the luminous object; and

darkening a display unit at an intersection of the glare line and the display unit to reduce glare effects perceived by the operator.

15. The method of claim 14, wherein determining the vehicle operator position comprises calculating the location of a midpoint between the eyes of the operator using a positioning controller equipped with eye-tracking technology, face-tracking technology, or a camera.

16. The method of claim 14, wherein determining the location of the luminous object using a global positioning system comprises communicating with one or more global positioning satellite servers.

17. A method for attenuating glare experienced by an operator of a vehicle, the method comprising:

determining a vehicle operator position by using one or more gyroscopes and/or accelerometers;

determining a position of a luminous object that is a source of glare;

calculating a glare line between the vehicle operator position and the position of the luminous object; and

darkening a display unit at an intersection of the glare line and the display unit to reduce glare effects perceived by the operator.

18. The method of claim 17 wherein the one or more gyroscopes and/or accelerometers are positioned within a head wearable member of the vehicle operator.

19. The method of claim 18 wherein the head wearable member comprises a helmet or audio headset.

20. The method of claim 17 comprising determining a position of a luminous object that is a source of glare by communicating with a global positioning system.

21. A computer readable medium having stored thereon executable instructions that when executed by the processor of a computer control the computer to perform steps comprising:

determining a vehicle operator position;

determining a position of a luminous object that is a source of glare by communicating with a global positioning system;

calculating a glare line between the vehicle operator position and the position of the luminous object; and

darkening a display unit at an intersection of the glare line and the display unit to reduce glare effects perceived by the operator.

22. A computer readable medium having stored thereon executable instructions that when executed by the processor of a computer control the computer to perform steps comprising:

determining a vehicle operator position by using one or more gyroscopes and/or accelerometers;

determining a position of a luminous object that is a source of glare;

calculating a glare line between the vehicle operator position and the position of the luminous object; and

darkening a display unit at an intersection of the glare line and the display unit to reduce glare effects perceived by the operator.

23. A system for attenuating glare from a laser, comprising:

a display unit interposed between an operator of a vehicle and all or part of a windshield of the vehicle;

a controller for controlling the display unit;

a photovoltaic film to detect a laser intersecting the display unit; and

wherein the photovoltaic film is configured to communicate to the controller the location on the display unit intersected by a laser and the controller is configured to cause the display unit at the location of the intersection to darken thereby attenuating the glare from the laser.

24. The system of claim 23, wherein the display unit comprises a nanowire matrix configured to detect a current from the photovoltaic film.

25. A system for attenuating glare, comprising:

a display unit interposed between an operator of a vehicle and all or part of a windshield of the vehicle;

a heads-up display mounted between an operator of a vehicle and the display unit;

a controller for controlling the display unit; and

wherein the controller is configured to communicate with the display unit to cause the display unit to darken at a location of the display unit corresponding to a line of sight of the operator when viewing the heads-up display to thereby attenuate glare on the heads-up display from a luminous source.

26. The system of claim 25, wherein the heads-up display is a transparent surface upon which information is displayed and viewable by the operator.

27. The system of claim 25, wherein the location of the display unit that is darkened is predetermined based on a predetermined location of the heads-up display.