Foreign object detection system and method

• US 6,917,309 B2
• Filed: 10/28/2002
• Issued: 07/12/2005
• Est. Priority Date: 10/28/2002
• Status: Expired due to Term

• Current Assignee: X - Sight Systems Limited
• Original Assignee: Integritech System Engineering Limited
• Inventors: Goner, Aviv, Fisher, Moshe, Golan, Aviram, Nitzan, Alon
• Primary Examiner(s): Hofsass, Jeffery
• Assistant Examiner(s): MEHMOOD, JENNIFER
• Application Number:
  US10/281,772
• Publication Number:
  US 20040080433A1
• Time in Patent Office: 988 Days
• Field of Search: 340/945, 340/947, 340/952, 340/953, 340/956, 340/972, 348128-132, 348/216.1, 348/217.1, 382/103, 382/104
• US Class Current: 340/945
• CPC Class Codes: B64F 1/18 Visual or acoustic landing aids taxiing aids B64F1/002
• CPC Class Codes: G06T 2207/30108 Industrial image inspection
• CPC Class Codes: G06T 2207/30236 Traffic on road, railway or crossing
• CPC Class Codes: G06T 7/0002 Inspection of images, e.g. flaw detection
• CPC Class Codes: G06T 7/0004 Industrial image inspection
• CPC Class Codes: G06T 7/254 involving subtraction of images
• CPC Class Codes: G06T 7/292 Multi-camera tracking
• CPC Class Codes: G08G 5/0026 located on the ground
• CPC Class Codes: G08G 5/0082 for monitoring traffic from a ground station radar or analogous systems specially adapted for traffic control G01S13/91
• CPC Class Codes: G08G 5/045 Navigation or guidance aids, e.g. determination of anti-collision manoeuvers radar or analogous systems specially adapted for anti-collision between aircraft G01S13/933
• CPC Class Codes: G08G 5/065 Navigation or guidance aids, e.g. for taxiing or rolling
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources

Abstract

A system for detection of foreign objects on airport travel surfaces including a plurality of foreign object detector modules mounted on a corresponding plurality of existing aircraft travel surface lighting supports, the plurality of foreign object detector modules providing a corresponding plurality of detection outputs and a high speed detection output analyzer operative to receive at least one of the plurality of detection outputs and to provide a high speed output indication of foreign object presence.

Claims

1. A system for detection of foreign objects on airport travel surfaces comprising:

a plurality of foreign object detector modules mounted on a corresponding plurality of existing aircraft travel surface lighting supports, said plurality of foreign object detector modules providing a corresponding plurality of detection outputs; and

a high speed detection output analyzer operative to receive at least one of said plurality of detection outputs and to provide a high speed output indication of foreign object presence.

2. A system for detection of foreign objects on airport travel surfaces according to claim 1 wherein said airport travel surfaces include at least one taxiway and at least one runway and said system employs at least some existing electrical power infrastructure associated with existing runway and taxiway lighting fixtures.

3. A system for detection of foreign objects on airport travel surfaces according to claim 1 and wherein said plurality of foreign object detector modules communicate with a computer system comprising an operator console operative to provide a foreign object presence alarm and an image of the foreign object to an operator.

4. A system for detection of foreign objects on airport travel surfaces according to claim 3 and wherein said high speed detection output analyzer is located in the vicinity of said operator console.

5. A system for detection of foreign objects on airport travel surfaces according to claim 1 and wherein at least one of said plurality of foreign object detector modules incorporates at least one foreign object sensor module which provides said detection output to said high speed detection output analyzer which is remotely located with respect thereto.

6. A system for detection of foreign objects according to claim 5 and wherein said high speed detection output analyzer comprises multiple sensor correlation software providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in individual ones of said plurality of detector modules.

7. A system for detection of foreign objects according to claim 5 and wherein said high speed detection output analyzer comprises multiple detector correlation software providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in multiple ones of said plurality of detector modules.

8. A system for detection of foreign objects on airport travel surfaces according to claim 1 wherein each of said plurality of foreign object detector modules comprises a foreign object sensor module comprising at least one camera and at least one illuminator.

9. A system for detection of foreign objects on airport travel surfaces according to claim 8 and wherein said at least one illuminator comprises a fixed field illuminator.

10. A system for detection of foreign objects on airport travel surfaces according to claim 8 and wherein said at least one illuminator comprises a scanning illuminator.

11. A system for detection of foreign objects on airport travel surfaces according to claim 8 and wherein said at least one camera comprises a fixed field camera.

12. A system for detection of foreign objects on airport travel surfaces according to claim 8 and wherein said at least one camera comprises a scanning camera.

13. A system for detection of foreign objects on airport travel surfaces according to claim 8 and wherein said at least one camera includes a zoom functionality.

14. A system for detection of foreign objects on airport travel surfaces according to claim 1 wherein each of said plurality of foreign object detector modules also has associated therewith at least one of a light level sensor, a vibration sensor and a temperature sensor.

15. A system for detection of foreign objects on airport travel surfaces according to claim 1 and wherein said high speed detection output analyzer is operative to provide said high speed output indication of foreign object presence within less than 1 minute.

16. A system for detection of foreign objects on airport travel surfaces comprising:

a plurality of foreign object detector modules mounted on a corresponding plurality of existing aircraft travel surface lighting supports located along aircraft travel surfaces and providing a corresponding plurality of detection outputs; and

a high speed detection output analyzer operative to receive said plurality of detection outputs and to provide a high speed output indication of foreign object presence within less than 1 minute.

17. A system for detection of foreign objects on airport travel surfaces according to claim 16 wherein said airport travel surfaces include at least one taxiway and at least one runway and said system employs at least some existing electrical power infrastructure associated with existing runway and taxiway lighting fixtures.

18. A system for detection of foreign objects on airport travel surfaces according to claim 16 and wherein said plurality of foreign object detector modules communicate with a computer system comprising an operator console operative to provide a foreign object presence alarm and an image of the foreign object to an operator.

19. A system for detection of foreign objects on airport travel surfaces according to claim 18 and wherein said high speed detection output analyzer is located in the vicinity of said operator console.

20. A system for detection of foreign objects on airport travel surfaces according to claim 16 and wherein at least one of said plurality of foreign object detector modules incorporates at least one foreign object sensor module which provides said detection output to said high speed detection output analyzer which is remotely located with respect thereto.

21. A system for detection of foreign objects according to claim 20 and wherein said high speed detection output analyzer comprises multiple sensor correlation software providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in individual ones of said plurality of detector modules.

22. A system for detection of foreign objects according to claim 20 and wherein said high speed detection output analyzer comprises multiple detector correlation software providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in multiple ones of said plurality of detector modules.

23. A system for detection of foreign objects on airport travel surfaces according to claim 16 wherein each of said plurality of foreign object detector modules comprises a foreign object sensor module comprising at least one camera and at least one illuminator.

24. A system for detection of foreign objects on airport travel surfaces according to claim 23 and wherein said at least one illuminator comprises a fixed field illuminator.

25. A system for detection of foreign objects on airport travel surfaces according to claim 23 and wherein said at least one illuminator comprises a scanning illuminator.

26. A system for detection of foreign objects on airport travel surfaces according to claim 23 and wherein said at least one camera comprises a fixed field camera.

27. A system for detection of foreign objects on airport travel surfaces according to claim 23 and wherein said at least one camera comprises a scanning camera.

28. A system for detection of foreign objects on airport travel surfaces according to claim 23 and wherein said at least one camera includes a zoom functionality.

29. A system for detection of foreign objects on airport travel surfaces according to claim 23 wherein each of said plurality of foreign object detector modules also has associated therewith at least one of a light level sensor, a vibration sensor and a temperature sensor.

30. A method for detection of foreign objects on airport travel surfaces comprising:

mounting a plurality of foreign object detector modules on a corresponding plurality of existing aircraft travel surface lighting supports;

operating said plurality of foreign object detector modules providing a corresponding plurality of detection outputs; and

analyzing said detection outputs at high speed to provide a high speed output indication of foreign object presence.

31. A method for detection of foreign objects on airport travel surfaces according to claim 30 wherein said airport travel surfaces include at least one taxiway and at least one runway, and the method comprises employing at least some existing electrical power infrastructure associated with existing runway and taxiway lighting fixtures.

32. A method for detection of foreign objects on airport travel surfaces according to claim 30 and also comprising:

communicating with an operator console; and

providing a foreign object presence alarm and an image of the foreign object to an operator.

33. A method for detection of foreign objects on airport travel surfaces according to claim 32 and wherein analyzing said detection outputs takes place in the vicinity of said operator console.

34. A method for detection of foreign objects on airport travel surfaces according to claim 30 and wherein at least one of said plurality of foreign object detector modules incorporates at least one foreign object sensor module which views a portion of an aircraft travel surface and provides said detection output to said high speed detection output analyzer which is remotely located with respect thereto.

35. A method for detection of foreign objects according to claim 34 and also comprising providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in individual ones of said plurality of detector modules.

36. A method for detection of foreign objects according to claim 34 and also comprising providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in multiple ones of said plurality of detector modules.

37. A method for detection of foreign objects on airport travel surfaces according to claim 30 wherein said operating said plurality of foreign object detector modules comprises capturing an image of a portion of said aircraft travel surface, with at least one camera.

38. A method for detection of foreign objects on airport travel surfaces according to claim 37 and also comprising illuminating a portion of an aircraft travel surface, with at least one illuminator.

39. A method for detection of foreign objects on airport travel surfaces according to claim 38 and wherein said illuminating comprises illuminating using a fixed field illuminator.

40. A method for detection of foreign objects on airport travel surfaces according to claim 38 and wherein said illuminating comprises illuminating using a scanning illuminator.

41. A method for detection of foreign objects on airport travel surfaces according to claim 37 and wherein said capturing an image comprises capturing an image with a fixed field camera.

42. A method for detection of foreign objects on airport travel surfaces according to claim 37 and wherein said capturing an image comprises capturing an image with a scanning camera.

43. A method for detection of foreign objects on airport travel surfaces according to claim 37 and wherein said capturing an image comprises capturing an image using a camera with a zoom functionality.

44. A method for detection of foreign objects on airport travel surfaces according to claim 37 wherein each of said plurality of foreign object detector modules also has associated therewith at least one of a light level sensor, a vibration sensor and a temperature sensor which provide inputs useful in said analyzing step.

45. A method for detection of foreign objects on airport travel surfaces comprising:

mounting a plurality of foreign object detector modules on a corresponding plurality of existing aircraft travel surface lighting supports along airport travel surfaces;

operating said plurality of foreign object detector modules providing a corresponding plurality of detection outputs; and

analyzing said detection outputs at high speed to provide a high speed output indication of foreign object presence within less than 1 minute.

46. A method for detection of foreign objects on airport travel surfaces according to claim 45 wherein said airport travel surfaces include at least one taxiway and at least one runway and the method comprises employing at least some existing electrical power infrastructure associated with existing runway and taxiway lighting fixtures.

47. A method for detection of foreign objects on airport travel surfaces according to claim 45 and also comprising:

communicating with an operator console; and

providing a foreign object presence alarm and an image of the foreign object to an operator.

48. A method for detection of foreign objects on airport travel surfaces according to claim 47 and wherein analyzing said detection outputs takes place in the vicinity of said operator console.

49. A method for detection of foreign objects on airport travel surfaces according to claim 45 and wherein at least one of said plurality of foreign object detector modules incorporates at least one foreign object sensor module which views a portion of an aircraft travel surface and provides said detection output to said high speed detection output analyzer which is remotely located with respect thereto.

50. A method for detection of foreign objects according to claim 49 and also comprising providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in individual ones of said plurality of detector modules.

51. A method for detection of foreign objects according to claim 49 and also comprising providing an output based on the correlation between said detection output from multiple ones of said at least one foreign object sensor module in multiple ones of said plurality of detector modules.

52. A method for detection of foreign objects on airport travel surfaces according to claim 45 wherein said operating said plurality of foreign object detector modules comprises capturing an image of a portion of said aircraft travel surface, with at least one camera.

53. A method for detection of foreign objects on airport travel surfaces according to claim 52 and also comprising illuminating a portion of an aircraft travel surface, with at least one illuminator.

54. A method for detection of foreign objects on airport travel surfaces according to claim 53 and wherein said illuminating comprises illuminating using a fixed field illuminator.

55. A method for detection of foreign objects on airport travel surfaces according to claim 53 and wherein said illuminating comprises illuminating using a scanning illuminator.

56. A method for detection of foreign objects on airport travel surfaces according to claim 52 and wherein said capturing an image comprises capturing an image with a fixed field camera.

57. A method for detection of foreign objects on airport travel surfaces according to claim 52 and wherein said capturing an image comprises capturing an image with a scanning camera.

58. A method for detection of foreign objects on airport travel surfaces according to claim 52 and wherein said capturing an image comprises capturing an image using a camera with a zoom functionality.

59. A method for detection of foreign objects on airport travel surfaces according to claim 52 wherein each of said plurality of foreign object detector modules also has associated therewith at least one of a light level sensor, a vibration sensor and a temperature sensor which provide inputs useful in said analyzing step.