Methods and apparatus for aircraft turbulence detection

• US 8,209,071 B2
• Filed: 04/16/2007
• Issued: 06/26/2012
• Est. Priority Date: 04/16/2007
• Status: Active Grant

• Current Assignee: Raytheon Company (Rtx Corporation)
• Original Assignee: Raytheon Company (Rtx Corporation)
• Inventors: Ross, Anthony
• Primary Examiner(s): Tran, Khoi
• Assistant Examiner(s): Jen, Ian
• Application Number:
  US11/735,597
• Publication Number:
  US 20080255714A1
• Time in Patent Office: 1,898 Days
• Field of Search: None
• US Class Current: 701/14
• CPC Class Codes: G01S 17/95 for meteorological use
• CPC Class Codes: G01S 7/003 Transmission of data between radar, sonar or lidar systems and remote stations
• CPC Class Codes: G01W 1/10 Devices for predicting weather conditions computers per se G06; display devices G09
• CPC Class Codes: G01W 2001/003 Clear air turbulence detection or forecasting, e.g. for aircrafts
• CPC Class Codes: G08G 5/0013 with a ground station
• CPC Class Codes: G08G 5/0039 Modification of a flight plan
• CPC Class Codes: G08G 5/0091 for monitoring atmospheric conditions radar or analogous systems specially adapted for meteorological use G01S13/95; meteorology G01W
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

Methods and apparatus for an in-flight air turbulence detection system. In one embodiment, a system includes an air turbulence detector and a transmitter to transmit turbulence information. In another embodiment, a system includes a receiver, a detection processing module, an aircraft ID module, and a route modification module.

Claims

1. A system, comprising:

an air turbulence detector to detect in-flight turbulence for an airborne aircraft, the air turbulence detector comprising a laser and a detection grid, configured to be affixed to an aircraft wing to measure wing deflection due to the turbulence, wherein the laser illuminating different portions of the detection grid corresponds to the wing deflection; and

a transmitter to transmit information on the detected turbulence from the air turbulence detector to an air traffic control location,

wherein the detection grid is configured to be affixed to the aircraft wing and the laser is configured to be affixed to an aircraft fuselage.

2. The system according to claim 1, wherein the air turbulence detector includes an accelerometer.

3. The system according to claim 1, wherein the transmitter is configured to transmit the detected turbulence information via a satellite.

4. The system according to claim 1, further including a turbulence processing module to derive characteristics of the detected turbulence.

5. The system according to claim 4, wherein the turbulence processing module includes one or more criteria to determine whether a turbulence alert should be generated.

6. The system of claim 1 wherein a turbulence processing module is coupled to the laser and the detection grid and is configured to control operation of the air turbulence detector.

7. The system of claim 1 wherein the detection grid is configured to be affixed to the aircraft wing and the laser is configured to be affixed to an aircraft fuselage.

8. The system of claim 1 wherein the detection grid is configured to be affixed to a wing tip of the aircraft wing.

9. The system of claim 1 wherein the laser is configured to illuminate a known location on the detection grid if there is no turbulence.

10. The system of claim 1 wherein the detection grid ranges from −

30 to +30 degrees off horizontal,

wherein turbulence is measured as a function of a number of degrees of wingtip travel over time, and

wherein zero degrees corresponds to no turbulence.

11. The system of claim 10 wherein turbulence is measured as a function of a number of degrees of wingtip travel over time and altitude changes.