Firing-simulation scope

Patent metadata

Field	Value
Publication number	US-11268790-B2
Application number	US-201716463294-A
Country	US
Kind code	B2
Filing date	Nov 23, 2017
Priority date	Nov 24, 2016
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A firing simulation scope, for installation on a rifle, includes an inertial measurement unit, a windage correction adjustment device, an electronic system, a microphone, a display and an interface for connection to a control station. The electronic system is configured for: receiving, via the connection interface, video data representing a field of view, through a simulated scope, in the virtual environment; displaying on the display the received video data; obtaining a real time audio microphone recording; comparing the audio recording with a predetermined firing-triggering signature of the rifle; and transmitting, to the control station via the connection interface, when the audio recording matches the predetermined signature, a firing triggering detection signal associated with inertial measurements supplied by the first inertial measurement unit and with a first adjustment setting supplied by the windage correction adjustment device, to enable the control station to determine a firing trajectory in the virtual environment.

First claim

The invention claimed is:

1. A firing-simulation scope configured to be installed on a rifle comprising:
a first inertial measurement unit,
a windage correction adjustment device,
an electronic system,
a microphone,
a display, and
a connection interface for connection to a control station,
the electronic system being configured to:
receive, via the connection interface, video data representing a field of view, through a simulated scope, in a virtual environment;
display, on the display, the received video data;
obtain an audio recording made in real time by the microphone;
compare the audio recording with a predetermined firing-triggering signature with the rifle; and
transmit, to the control station via the connection interface, when the audio recording matches the predetermined firing-triggering signature, a firing triggering detection signal associated with inertial measurements supplied by the first inertial measurement unit and with a first adjustment setting supplied by the windage correction adjustment device, so as to enable the control station to determine a firing trajectory in the virtual environment.

2. The firing-simulation scope according to claim 1 , further including a device for adjusting correction of bullet drop, and wherein the firing triggering detection signal is further associated with a second adjustment setting supplied by the device for adjusting correction of the bullet drop, so as to enable the control station to take account thereof for determining the firing trajectory in the virtual environment.

3. The firing-simulation scope according to claim 1 , wherein the electronic system is further configured to make a second audio recording of a dry-firing triggering with the rifle, and wherein the electronic system is further configured to define the predetermined firing-triggering signature from the second audio recording.

4. The firing-simulation scope according to claim 1 , wherein the electronic system is further configured to make a frequency transposition of the audio recording, and wherein the predetermined firing-triggering signature is a spectral signature.

5. The firing-simulation scope according to claim 1 , further including a second inertial measurement unit, and wherein the electronic system is further configured to refine the inertial measurements supplied by the first inertial measurement unit by virtue of inertial measurements supplied by the second inertial measurement unit, the first inertial measurement unit being configured in data fusion mode and the second inertial measurement unit being configured in raw data mode.

6. A simulation system including the control station and the firing-simulation scope according to claim 1 , the firing-simulation scope being connected to the control station, the control station including electronic circuitry to determine the firing trajectory in the virtual environment when said control station receives the firing triggering detection signal from the firing-simulation scope connected thereto.

7. The simulation system according to claim 6 , wherein the control station includes at least one set of firing tables providing, according to a distance travelled by a simulated bullet, firing deviation data according further to wind force and direction, and wherein determining the firing trajectory in the virtual environment includes:
determining a position of a soldier in simulation in the virtual environment at a moment of firing;
determining an axis of sight of the rifle by virtue of the inertial measurements associated with the firing triggering detection signal;
laterally correcting the axis of sight of the rifle by the first adjustment setting; and
applying the deviation data specified in the at least one set of firing tables.

8. The simulation system according to claim 7 , wherein the at least one set of firing tables supplies, according to the distance travelled by the simulated bullet, bullet-drop data, wherein the firing-simulation scope comprises a bullet-drop correction adjustment device, wherein the firing triggering detection signal is further associated with a second adjustment setting supplied by the bullet-drop correction adjustment device, and wherein the determining the firing trajectory in the virtual environment further includes correcting the axis of sight of the rifle for elevation by way of the second adjustment setting.

9. The simulation system according to claim 8 , wherein the at least one set of firing tables supplies, according to the distance travelled by the simulated bullet, the bullet-drop data according to an ambient temperature and an atmospheric pressure in the Virtual environment.

10. The simulation system according to claim 7 , wherein the position of the soldier in the virtual environment is fixed by applying a predefined offset with respect to an avatar of an observer accompanying the soldier in the virtual environment.

11. A method implemented by a firing-simulation scope installed on a rifle and which includes an inertial measurement unit, a device for adjusting windage correction, an electronic system, a microphone, a display, and a connection interface for connection to a control station, the method performed by the electronic system comprising:
receiving, via the connection interface, video data representing a field of view, through a simulated scope, in a virtual environment;
displaying, on the display, the received video data;
obtaining an audio recording made in real time by the microphone;
comparing the audio recording with a predetermined signature of firing triggering with the rifle; and
transmitting to the control station via the connection interface, when the audio recording matches the predetermined signature of firing, a firing triggering detection signal associated with inertial measurements supplied by the inertial measurement unit and with an adjustment setting supplied by the device for adjusting windage correction so as to enable the control station to determine a firing trajectory in the virtual environment.

12. A method implemented by a simulation system including at the control station and the firing-simulation scope implementing the method according to claim 11 , the firing-simulation scope being connected to the control station, the method comprising the step of:
determining, by the control station, the firing trajectory in the virtual environment, when said control station receives the firing triggering detection signal from the firing-simulation scope connected thereto.

13. A non-transitory information storage medium storing a computer program comprising instructions for implementing the method according to claim 11 , when said program is executed by a processor.

Assignees

• Airbus Defence & Space Sas
• Airbus Defence And Space S A S

Inventors

• Biran Hervé

Classifications

• F41G3/26 Primary

  Teaching or practice apparatus for gun-aiming or gun-laying {(shooting games A63F9/02; light- or radiation-emitting guns F41A33/02; targets therefor F41J; responders, transponders for radar, sonar, lidar G01S13/767, G01S15/74, G01S17/74)} · CPC title

• F41A33/04

  Acoustical simulation of gun fire, e.g. by pyrotechnic means · CPC title

• F41G3/2644 Primary

  Displaying the trajectory or the impact point of a simulated projectile in the gunner's sight · CPC title

• F41G3/2694

  for simulating a target (F41G3/2627 takes precedence; moving targets per se F41J9/00) · CPC title

• G09B9/003

  for military purposes and tactics · CPC title