Laser beam based flight path clearing system

Patent metadata

Field	Value
Publication number	US-12505753-B2
Application number	US-202418442984-A
Country	US
Kind code	B2
Filing date	Feb 15, 2024
Priority date	Feb 15, 2024
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A flight path clearing system comprising a laser beam system in an aircraft and a controller. The controller is configured to select a number of characteristics for a laser beam based on an object type. The controller is configured to control the laser beam system to emit the laser beam with the number of characteristics in a direction relative to a flight path of the aircraft. The controller is configured to control the laser beam system to move the laser beam with the number of characteristics selected for the object type to scan an area using a pattern that is based on a sequence of locations in the pattern being nearest to a center of the area, wherein a number of objects of the object type hit by the laser beam is cleared from the flight path.

First claim

What is claimed is:

1 . A flight path clearing system that comprises:
a laser beam system in an aircraft; and a controller configured to:
select a number of characteristics for a laser beam based on an object type; and control the laser beam system to:
emit the laser beam with the number of characteristics in a direction relative to a flight path of the aircraft; and
move the laser beam with the number of characteristics selected for the object type to scan an area using a pattern that is based on:
a sequence of locations in the pattern being selected from a group that consists of the sequence of locations being:
 nearest to a center of the area, wherein a number of objects of the object type hit by the laser beam is cleared from the flight path; and
 a scan metric, wherein a number of objects of the object type hit by the laser beam is cleared from the flight path, wherein the scan metric is M=PDF int /t tot , where PDF int is a probability density function integrated over an area of interest for a next potential location and t tot is a total time t tot =t slew +t dwell , t slew is a time to slew a line-of-sight from a current location to the next potential location, and t dwell is a time line-of-sight dwells at the next potential location.

2 . The flight path clearing system of claim 1 , wherein the number of characteristics of the laser beam comprises at least one of a wavelength, a focal length, a power, a timing, or an intensity.

3 . The flight path clearing system of claim 2 , wherein the focal length is selected such that the laser beam scans the area at a distance from the aircraft that enables the laser beam to effectively clear the flight path.

4 . The flight path clearing system of claim 2 , wherein the timing is selected from a group comprising pulsed and continuous.

5 . The flight path clearing system of claim 1 , wherein the laser beam system is selected from at least one of a gas laser beam system or a carbon dioxide laser beam system.

6 . The flight path clearing system of claim 1 , wherein the object type is an aerial drone.

7 . The flight path clearing system of claim 1 , wherein the controller is further configured to control a movement of the laser beam to comprise at least one of continuous movement or dwell time at each location in the sequence of locations.

8 . The flight path clearing system of claim 1 , wherein clearing an aerial drone as the number of objects from the flight path comprises causing at least one of interference with a navigation system of the aerial drone, the aerial drone to fly outside of the flight path of the aircraft, damage to the aerial drone, or destruction of the aerial drone such that the aerial drone moves away from the flight path of the aircraft.

9 . The flight path clearing system of claim 1 , wherein a shape of the pattern comprises one of: a hexagon, a honeycomb, a pentagon, and an octagon.

10 . A flight path clearing system comprising:
a laser beam system in an aircraft; and a controller configured to:
select a number of characteristics for a laser beam based on an object type; and control the laser beam system to:
emit the laser beam with the number of characteristics in a direction relative to a flight path of the aircraft; and
move the laser beam with the number of characteristics selected for the object type to scan an area using a pattern that is based on a sequence of locations in the pattern that are selected based on a scan metric, wherein a number of objects of the object type hit by the laser beam is cleared from the flight path, wherein the scan metric is M=PDF int /t tot , where PDF int is a probability density function integrated over an area of interest for a next potential location and t tot is a total time t tot =t slew +t dwell , t slew is a time to slew a line-of-sight from a current location to the next potential location, and t dwell is a time line-of-sight dwells at the next potential location.

11 . The flight path clearing system of claim 10 , wherein the pattern is selected from a group comprising a hexagon, a honeycomb, a pentagon, and an octagon.

12 . A method for clearing a flight path, the method comprising:
selecting a number of characteristics for a laser beam based on an object type, and emitting the laser beam from an aircraft with the number of characteristics in a direction relative to the flight path of the aircraft; and moving the laser beam with the number of characteristics selected for the object type to scan an area using a pattern that is based on a sequence of locations in the pattern being selected from a group that consists of the sequence of locations being:
nearest to a center of the area, wherein a number of objects of the object type hit by the laser beam is cleared from the flight path; and
selected based on a scan metric, wherein a number of objects of the object type hit by the laser beam is cleared from the flight path, wherein the scan metric is

M
=

PDF
int

/

t
tot

where PDF int is a probability density function integrated over an area of interest for a next potential location and t tot is a total time t tot =t dwell , t slew is a time to slew a line-of-sight from a current location to the next potential location, and t dwell is a time line-of-sight dwells at the next potential location.

13 . The method of claim 12 , wherein the number of characteristics of the laser beam comprises at least one of a wavelength, a focal length, a power, a timing, or an intensity.

14 . The method of claim 13 , wherein the focal length is selected such that the laser beam scans the area at a distance from the aircraft that enables the laser beam to effectively clear the flight path.

15 . The method of claim 13 wherein the timing is selected from a group comprising pulsed and continuous.

16 . The method of claim 12 , wherein the laser beam is emitted from a laser beam system selected from at least one of a gas laser beam system or a carbon dioxide laser beam system.

17 . The method of claim 12 , wherein the object type is an aerial drone.

18 . The method of claim 12 , wherein moving the laser beam comprises at least one of continuous movement or dwell time at each location in the sequence of locations.

19 . The method of claim 12 , wherein clearing an aerial drone as the number of objects from the flight path comprises causing at least one of interference with a navigation system of the aerial drone, the aerial drone to fly outside of the flight path of the aircraft, damage to the aerial drone, or destruction of the aerial drone such that the aerial drone moves away from the flight path of the aircraft.

20 . The method of claim 12 , wherein a shape of the pattern comprises one of: a hexagon, a honeycomb, a pentagon, and an octagon.

Assignees

• Boeing Co

Inventors

• Hiller Nathan D
• Lambert Stephen
• Tomkinson Todd Harding
• Griffin Steven Fulton

Classifications

• G02B26/10

  Scanning systems · CPC title

• G02B26/08

  for controlling the direction of light (in light guides G02B6/35) · CPC title

• G02F1/00

  Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics · CPC title

• H01S3/13

  Stabilisation of laser output parameters, e.g. frequency or amplitude · CPC title

• B64D47/06

  for indicating aircraft presence · CPC title