Method and arrangements for firing a fire arm

Patent metadata

Field	Value
Publication number	US-8989449-B2
Application number	US-201013576666-A
Country	US
Kind code	B2
Filing date	Feb 2, 2010
Priority date	Feb 2, 2010
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

An arrangement and methods for firing a fire arm. The fire arm includes a determining unit configured to determine a movement of an aim point for the fire arm relative to a target. A processing unit is configured to determine a target point for the aim point based on the movement of the aim point relative to the target and to predict the future movement of the aim point. A firing unit is configured to fire the fire arm when the aim point is predicted to be within a tolerance of the target point.

First claim

The invention claimed is:

1. An arrangement for firing a firearm, said arrangement comprising:
a determining unit comprising a camera which captures consecutive images of said target, wherein said determining unit is configured to determine a movement of an aim point for said firearm relative to a target by using image processing of said consecutive images;
a processing unit configured to determining a target point for said aim point from said movement of said aim point, and to predict a future movement of said aim point based on said movement of said aim point, wherein a dynamic model of said firearm is used in determination of at least the future movement of said aim point, and wherein the dynamic model comprises weight and size of at least one of a shooter or a weapon platform to compensate for at least one of shaking or swaying from at least one of the shooter or the weapon to increase accuracy; and
a firing unit configured to fire said firearm when said aim point is predicted to be within a tolerance of said target point.

2. The arrangement according to claim 1 , wherein the camera is incorporated in a telescopic sight of said firearm.

3. The arrangement according to claim 1 , wherein the camera is attached to a telescopic sight of said firearm.

4. The arrangement according to claim 1 , wherein said determining unit comprises at least one accelerometer, and wherein said determining unit is further configured to determine said movement of said aim point by using signals from said at least one accelerometer.

5. The arrangement according to claim 1 , wherein said processing unit is further configured to wait until said target point is within a tolerance before starting to predict a future movement of said aim point based on said movement of said aim point.

6. The arrangement according to claim 1 , wherein said arrangement is configured for detachable connection to said firearm.

7. A method in a firearm for firing the arm firearm, the method comprising:
determining a movement of an aim point for said firearm relative to a target using a camera which captures consecutive images of said target, wherein said movement of said aim point is determined by using image processing of said consecutive images;
determining a target point for said aim point from said movement of said aim point;
predicting a future movement of said aim point based on said movement of said aim point,
wherein a dynamic model of said firearm is used in determination of at least the future movement of said aim point, and wherein the dynamic model comprises weight and size of at least one of a shooter or a weapon platform to compensate for at least one of shaking or swaying from at least one of the shooter or the weapon to increase accuracy; and
firing said firearm when said aim point is predicted to be within a tolerance of said target point.

8. The method according to claim 7 , wherein in said determining a movement of said aim point, said movement is determined using at least one accelerometer, and wherein said determining a movement of said aim point further comprises determining said movement of said aim point using signals from said at least one accelerometer.

9. The method according to claim 7 , wherein in said predicting a future movement of said aim point said future movement of said aim point is predicted after said target point is within a tolerance.

Assignees

• Backlund Göran
• Johansson Gert
• Saab Ab

Inventors

• Backlund Göran
• Johansson Gert

Classifications

• F41G1/38 Primary

  Telescopic sights specially adapted for smallarms or ordnance (telescopic sights in general G02B); Supports or mountings therefor · CPC title

• F41G3/16

  Sighting devices adapted for indirect laying of fire · CPC title

• F41G3/142

  based on observation of a first shoot; using a simulated shoot (training F41G3/26) · CPC title

• F41G3/12

  with means for compensating for muzzle velocity or powder temperature {with means for compensating for gun vibrations} · CPC title

• F41A19/64

  for automatic or burst-firing mode · CPC title