System for determining weight-on-wheels using LIDAR

Patent metadata

Field	Value
Publication number	US-10317533-B2
Application number	US-201515325876-A
Country	US
Kind code	B2
Filing date	Jul 15, 2015
Priority date	Jul 18, 2014
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A system and method for determining weight on wheels for an aircraft with at least one landing gear; a sensor associated with machinery Light Detection And Ranging scanner; a processor; and memory having instructions stored thereon that, when executed by the processor, cause the system to receive signals indicative of LIDAR image information for a landing gear; evaluate the LIDAR image information against a landing gear model; determine information indicative that the landing gear is locked in response to the evaluating of the LIDAR image information; and determine information indicative that the landing gear is compressed in response to the evaluating of the LIDAR image information against the landing gear model.

First claim

What is claimed is:

1. A method for determining weight on wheels for an aircraft, comprising:
receiving, with a processor, signals indicative of Light Detection And Ranging (LIDAR) image information for a landing gear;
evaluating, with the processor, the LIDAR image information against a landing gear model;
determining, with the processor, information indicative that the landing gear is locked in response to the evaluating of the LIDAR image information; and
determining, with the processor, information indicative that the landing gear is compressed in response to the evaluating of the LIDAR image information against the landing gear model.

2. The method of claim 1 , further comprising receiving the LIDAR image information while the aircraft is airborne.

3. The method of claim 1 , further comprising evaluating the LIDAR image information against a landing gear extension model.

4. The method of claim 1 , further comprising applying weight of the aircraft on the landing gear in response to determining that the landing gear is locked.

5. The method of claim 1 , further comprising determining a load of the aircraft on the landing gear in response to the determining that the landing gear is compressed.

6. The method of claim 1 , further comprising transitioning the aircraft to a ground aircraft state in response to determining that the landing gear is compressed.

7. The method of claim 1 , further comprising receiving the LIDAR image information from a body landing gear and a nose landing gear.

8. A system for determining weight on wheels for an aircraft, comprising:
at least one landing gear;
a sensor associated with a machinery Light Detection And Ranging (LIDAR) scanner;
a processor; and
memory having instructions stored thereon that, when executed by the processor, cause the system to:
receive signals indicative of LIDAR image information for a landing gear;
evaluate the LIDAR image information against a landing gear model;
determine information indicative that the landing gear is locked in response to the evaluating of the LIDAR image information; and
determine information indicative that the landing gear is compressed in response to the evaluating of the LIDAR image information against the landing gear model.

9. The system of claim 8 , wherein the processor is configured to receive the LIDAR image data while aircraft is airborne.

10. The system of claim 8 , wherein the processor is configured to evaluate the LIDAR image information against a landing gear extension model.

11. The system of claim 8 , wherein the processor is configured to apply weight of the aircraft on the landing gear in response to determining that the landing gear is locked.

12. The system of claim 8 , wherein the processor is configured to determine a load of the aircraft on the landing gear in response to the determining that the landing gear is compressed.

13. The system of claim 8 , wherein the processor is configured to transition the aircraft to a ground aircraft state in response to determining that the landing gear is compressed.

14. The system of claim 8 , wherein the processor is configured to receive the LIDAR image information from a body landing gear and a nose landing gear.

Assignees

• Sikorsky Aircraft Corp

Inventors

• Cherepinsky Igor
• Leland Joshua M

Classifications

• B64D45/0005

  Devices specially adapted to indicate the position of a movable element of the aircraft, e.g. landing gear · CPC title

• G01S17/89

  for mapping or imaging · CPC title

• G01S7/497

  Means for monitoring or calibrating · CPC title

• G01S7/4808

  Evaluating distance, position or velocity data · CPC title

• G01S17/88 Primary

  Lidar systems specially adapted for specific applications · CPC title