System and method for displaying vertical profile of intruding traffic in two dimensions

• US 6,433,729 B1
• Filed: 09/26/2000
• Issued: 08/13/2002
• Est. Priority Date: 09/27/1999
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Staggs, Thomas J.
• Primary Examiner(s): Sotomayor, John B.
• Application Number:
  US09/670,303
• Time in Patent Office: 686 Days
• Field of Search: 342/29, 342/30, 342/32, 342/36, 342/37, 342/38, 342/42, 342/46, 342/176, 342/179, 342/180, 342/455, 342/456, 701/3, 701/4, 701/301, 701/207, 340/974, 340/975
• US Class Current: 342/29
• CPC Class Codes: G01S 13/933 of aircraft or spacecraft
• CPC Class Codes: G01S 7/12 Plan-position indicators, i.e. P.P.I.
• CPC Class Codes: G01S 7/22 Producing cursor lines and indicia by electronic means

Abstract

A circuit and method for displaying a vertical profile view of situational awareness information.

Claims

1. An electronic circuit for converting a signal conveying situational awareness information relative to an aircraft hosting the electronic circuit, the electronic circuit comprising:

a memory for storing a plurality of machine instructions;

a processor coupled to said memory, said processor executing said plurality of machine instructions to implement a plurality of functions, said functions comprising;

defining a vertical sampling volume relative to the host aircraft;

receiving a signal processed as situational awareness information;

transposing said situational awareness information relative to said vertical sampling volume; and

generating a video signal of said situational awareness information relative to said vertical sampling volume.

2. The electronic circuit recited in claim 1, wherein said situational awareness information further comprises position information of other aircraft relative to the host aircraft.

3. The electronic circuit recited in claim 2, wherein said situational awareness information further comprises potential conflict information.

4. The electronic circuit recited in claim 3, wherein:

said transposing said situational awareness information relative to said vertical sampling volume further comprises transposing said situational awareness information into a vertical profile view relative to said vertical sampling volume; and

generating a video signal of said situational awareness information relative to said vertical sampling volume further comprises generating a video signal of said vertical profile view of said situational awareness information relative to said vertical sampling volume.

5. The electronic circuit recited in claim 4, wherein:

said functions further comprise determining conflict solution information; and

said video signal further comprises said conflict solution information.

6. An electronic circuit for converting a signal conveying position data of other aircraft relative to an aircraft hosting the electronic circuit, the electronic circuit comprising:

a) a memory for storing a plurality of machine instructions;

b) a processor coupled to said memory, said processor executing said plurality of machine instructions to implement a plurality of functions, said functions including;

i) accessing a signal processed as situational awareness information relative to the host aircraft;

ii) defining said situational awareness information relative to a vertical sampling volume defined relative to the host aircraft;

iii) transposing said situational awareness information into a vertical profile view relative to said vertical sampling volume; and

iv) generating a video signal of said vertical profile view of said situational awareness information.

7. The electronic circuit recited in claim 6, wherein said situational awareness information further comprises position information of other aircraft relative to the host aircraft.

8. The method recited in claim 7, wherein said situational awareness information further comprises potential conflict information.

9. The method recited in claim 8, wherein:

aid functions further comprise determining conflict solution information; and

said video signal further comprises said conflict solution information.

10. The method recited in claim 9, further comprising a display adapted to receive said video signal and generating a two-dimensional display of said situational awareness information.

11. A method for using an electronic circuit to convert a signal conveying position data of other aircraft relative to an aircraft hosting equipment implementing the method, the method comprising:

a) processing the signal as situational awareness information relative to the host aircraft;

b) with the electronic circuit, defining said situational awareness information relative to a vertical sampling volume defined relative to the host aircraft;

c) with the electronic circuit, transposing said situational awareness information into a vertical profile view relative to said vertical sampling volume; and

d) displaying said vertical profile view of said situational awareness information.

12. The method recited in claim 11, wherein said situational awareness information further comprises position information of other aircraft relative to the host aircraft.

13. The method recited in claim 12, wherein said situational awareness information further comprises potential conflict information.

14. The method recited in claim 13, further comprising with the electronic circuit, determining conflict solution information;

and

wherein said displaying said vertical profile view of said situational awareness information further comprises displaying said conflict solution information.

15. A method for displaying vertical situational awareness information relative to an aircraft hosting equipment implementing the method, the method comprising:

defining a vertical sampling volume;

detecting aircraft intruding into said sampling volume;

determining a range and altitude of said intruding aircraft; and

displaying in a two-dimensional vertical profile view information describing said range and altitude of said intruding aircraft.

16. The method recited in claim 15, further comprising:

defining a reference frame relative to the host aircraft;

applying said vertical sampling volume to said reference frame.

17. The method recited in claim 16, further comprising:

determining a level of threat posed by said intruding aircraft; and

wherein said information describing said range and altitude of said intruding aircraft further comprises information identifying said level of threat.

18. The method recited in claim 17, wherein said displaying information describing said level of threat posed by said intruding aircraft further comprises displaying a predetermined symbol consistent with conventional traffic display symbology for indicating said determined level of threat.

19. The method recited in claim 17, wherein said detecting intruding aircraft further comprises detecting aircraft positioned within said sampling volume.

20. The method recited in claim 19, further comprising displaying additional information comprising information describing a position of said intruding aircraft relative to a centerline of said vertical sampling volume.

21. The method recited in claim 19, further comprising displaying additional information comprising information indicative of a potential conflict with said intruding aircraft.

22. The method recited in claim 21, further comprising displaying additional information comprising information describing a conflict solution.

23. The method recited in claim 19, wherein said detecting intruding aircraft further comprises detecting aircraft positioned outside of said sampling volume.

24. The method recited in claim 23, further comprising displaying additional information comprising information indicative of a potential conflict with said intruding aircraft.

25. The method recited in claim 24, wherein said potential conflict with said intruding aircraft further comprises determining said potential conflict as a function of a flight plan of the host aircraft and one of a current track of said intruding aircraft and a flight plan of said intruding aircraft.

26. The method recited in claim 25, further comprising displaying additional information comprising information describing a conflict solution.

27. A method for displaying vertical situational awareness information relative to an aircraft hosting equipment implementing the method, the method comprising:

defining a three-dimensional sampling reference frame relative to the host aircraft;

defining a vertical sampling volume comprising a predetermined volume of airspace;

applying said vertical sampling volume to said sampling reference frame;

detecting other aircraft within a predetermined range of the host aircraft;

determining a position of said other aircraft relative to said sampling volume;

for each of said other aircraft positioned within said sampling volume, displaying in a two-dimensional vertical profile view a symbol representing a three-dimensional position of said other aircraft.

28. The method recited in claim 27, wherein said displaying a symbol representing a three-dimensional position of said other aircraft within said sampling volume further comprises displaying said symbol in a two-dimensional position representative of said three-dimensional position of said other aircraft relative to the host aircraft.

29. The method recited in claim 28, further comprising:

determining a potential conflict with one or more of said other aircraft; and

wherein said displaying a symbol representing a three-dimensional position of said other aircraft further comprises highlighting said symbol.

30. The method recited in claim 29, wherein said highlighting said symbol further comprises one of:

changing a color of said symbol,

changing a shape of said symbol,

periodically displaying said symbol,

framing said symbol, and

displaying said symbol within a conflict range box displayed at an estimated range of said potential conflict.

31. The method recited in claim 29, wherein a determined potential conflict with one or more of said other aircraft further comprises a potential conflict with one or more of one said other aircraft positioned within said sampling volume and one said other aircraft positioned outside of said sampling volume.

32. The method recited in claim 31, further comprising displaying additional information comprising a maneuver useful for avoiding said potential conflict.

33. The method recited in claim 32, wherein said determining a potential conflict with one or more of said other aircraft further comprises determining said potential conflict as a function of one of a determined current track of said other aircraft and a determined flight path of said other aircraft.

34. The method recited in claim 33, wherein said determining a potential conflict with one or more of said other aircraft further comprises determining said potential conflict as a function of a determined flight path of the host aircraft.

35. A situational awareness information system for generating and displaying situational awareness information relative to a host aircraft, the situational awareness information system comprising:

a radio frequency transmitter;

a radio frequency receiver;

a signal processor coupled to said transmitter to broadcast radio frequency signals and to said receiver to receive radio frequency signals, said signal processor operating traffic alert and collision avoidance software and generating a video output signal conveying situational awareness information relative to a vertical sampling volume defined relative to the host aircraft;

a display coupled to convert said video output signal and display said situational awareness information as a vertical profile view relative to said vertical sampling volume.

36. The situational awareness information system recited in claim 35, wherein:

said signal processor operating traffic alert and collision avoidance software comprises a first signal processor; and

said signal processor generating a video output signal conveying situational awareness information relative to a vertical sampling volume defined relative to the host aircraft comprises a second signal processor.

37. The situational awareness information system recited in claim 36, further comprising a memory coupled to said first signal processor for storing successive positional data frames for aircraft relative to the host aircraft.