US 2018/0216938 A1 · DIGITAL SIGHT FOR HAND-CARRIED PROJECTILE-FIRING DEVICE AND METHOD OF CONTROLLING THE SAME

Abstract

The present invention relates to a digital sight for a hand-carried projectile-firing device and a method of controlling the digital sight. A digital sight for a hand-carried projectile-firing device according to an embodiment of the present invention is a digital sight for a hand-carried projectile-firing device, the digital sight including an inertial sensor package and a manual rotation device, wherein the inertial sensor package includes a gyroscope and an accelerometer module. In accordance with the present invention, equipment for measuring the firing direction of a hand-carried projectile-firing device such as a mortar is replaced with a digital sight for a hand-carried projectile-firing device, which reduces an estimation error while using a single medium-low level gyroscope, thus enabling the projectile-firing device to precisely and promptly fire a projectile and improving the operability thereof.

Claims11

Dependent claims

1-4. (canceled)

A method of controlling a digital sight for a hand-carried projectile-firing device, comprising:

a step (S100) of, by using a vertical accelerometer and a horizontal accelerometer, performing horizontal alignment and then aligning a gyroscope measurement axis with a firing direction;
a step (S200) of, after the aligning step (S100), acquiring a first approximate azimuth angle from auxiliary information;
a step (S300) of, after the step (S200) of acquiring the first approximate azimuth angle, calculating a second approximate azimuth angle;
and
a step (S400) of, after the step (S300) of calculating the second approximate azimuth angle, calculating a first precise azimuth angle,
wherein the step (S300) of calculating the second approximate azimuth angle comprises a step (S310) of determining availability of the first approximate azimuth angle acquired at the step (S200) of acquiring the first approximate azimuth angle.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/506,219Filed 13 Nov 2014

Priority

KR KR10-2014-01526745 Nov 2014

Published

2 Aug 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

G01C 21/1654
Combined with non-inertial navigation instruments: with electromagnetic compass
F41F 1/06
Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons ; Harpoon guns: mortars
F41G 1/46
Sighting devices: for particular applications
F41G 1/50
For particular applications: for trench mortars or for other mortars

Digital sight for hand-carried projectile-firing device and method of controlling the same

Life of this patent

Digital sight for hand-carried projectile-firing device and method of controlling the same

Life of this patent

Abstract

Claims11