DESC:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION

(See Section 10 and Rule 13)

Title of invention:
A RIFLE POSITION DETECTION SYSTEM AND A METHOD THEREOF
APPLICANT:
Cereble Private Limited
An Indian entity having address,
S. No. 65, Plot No. 74, Abhinav Society, Padmavati, Pune – 411009,
Maharashtra, India

The following specification describes the invention and the manner in which it is to be performed.

CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
The present application claims priority from Indian provisional patent application no. 202121012497 filed on the 23rd day of March 2021, the details of which are incorporated herein by a reference.
TECHNICAL FIELD
The present subject matter described herein, in general relates to the field of competitive rifle shooting sport, more precisely, in detection of rifle movement during training for competitive rifle shooting sport.
BACKGROUND
The subject matter discussed in the background section should not be assumed to be prior art merely as a result of its mention in the background section. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also correspond to implementations of the claimed technology.
In conventional art, there are two types of shooting training systems. Further, the shooting training system comprises tracking the movement of the weapon’s barrel in order to determine the projected position of the barrel on the target right before, during and after the shot. Further, based on the projected position a score is calculated.
In the first type, the shooting training system comprises a camera mounted on a barrel of a rifle. Further, the said camera is responsible for tracking the position of the target’s centre with respect to the barrel. Further, the said camera is connected to a processor, wherein the said processor uses image processing to calculate the required parameters. Also, this method is independent of the target, be it electronic or paper, as long as the centre of the target is clearly visible.
In the second type, the target comprises a camera or a plurality of cameras or sensors. Further, a laser is mounted on the barrel of the rifle. Further, the position of the laser is tracked by the target via image processing to calculate the required parameters. This method is dependent on the target and the shooter must use the target provided by the manufacturer.
However, in the conventional systems, the camera and / or the laser is / are mounted on the barrel of the rifle. Further, such mountings increase load on the rifle during shooting practice and leads to difference in rifle weight during training and during competition. Further, such rifle mounts may or may not be allowed in competitive shooting. Further, additional weight on rifle is not preferred by professional shooters, as it becomes difficult for the shooter to shoot for longer durations.
Therefore, there is a long-felt need for a system wherein an accurate score is calculated along with the projected position of the barrel on the target right before, during and after the shot by proper detection of the movement and orientation of the rifle, and without increasing the load on the rifle.
SUMMARY
This summary is provided to introduce concepts related to a system and a method to determine the rifle position and the concepts are further described below in the detailed description. This summary is not intended to identify essential features of the claimed subject matter nor is it intended for use in determining or limiting the scope of the claimed subject matter.
The present disclosure relates to a system and a method to determine the rifle position. In one embodiment, the said system may comprise a rifle, wherein the rifle may comprise a pistol or a shooting weapon, the said rifle further may comprise a rifle position detecting device, and an optional target means. Further, a shooter maybe configured to aim the target means, and maybe devoid of any mounts on the rifle. Further, the rifle position detecting device maybe positioned below the rifle, wherein the rifle position detecting device maybe configured to determine the position of the barrel of the rifle including but not limited to a roll, a yaw, and a pitch position, as well as x, y, z position of the barrel of the rifle. Further, the said rifle position detecting device may comprise at least one camera. Further, the said rifle position detecting device may comprise a single board computer (hereinafter referred to as SBC), wherein the said SBC maybe embedded with an algorithm. Further, based on the images and sensor data obtained from the camera and SBC, the rifle position detecting device calculates the roll, yaw, and pitch positions, as well as x, y, z position of the rifle using live image processing means enabled by the algorithm, in order to determine / trace the projected position of a barrel of the rifle, on the target right before, during and after the shot. Further, the said system maybe enabled to calculate a score corresponding to the projected position of the barrel on the target.
Further, in one embodiment, a method to determine the rifle position is disclosed. The said method may comprise a step of capturing the movement of the barrel of the rifle using the rifle detecting device. Further, the said method may comprise a steps of calculating the roll, yaw, and pitch, as well as x, y, z position of the rifle, wherein the data obtained while capturing the movement of the barrel of the rifle maybe enabled to calculate the position of the rifle. Further, the said method may comprise a step of calculating the projected position of the barrel on the target right before, during and after the shot and calculating the score corresponding to the projected position of the barrel on the target.
BRIEF DESCRIPTION OF DRAWINGS
The detailed description is described with reference to the accompanying Figures. In the Figures, the left-most digit(s) of a reference number identifies the Figure in which the reference number first appears. The same numbers are used throughout the drawings to refer like features and components.
Figure 1a illustrates a systematic view of the system 100 to determine the rifle position, in accordance with an embodiment of the present subject matter.
Figure 1b illustrates a front view of the target means of the system 100, in accordance with an embodiment of the present subject matter.
Figure 2 illustrates components of a rifle position detecting device 101, in accordance with an embodiment of the present subject matter.
Figure 3 illustrates projection view 300 used for computing movement and position of the rifle, in accordance with an embodiment of the present subject matter.
Figure 4 illustrates a method 400 to determine the rifle position, in accordance with an embodiment of the present subject matter.
DETAILED DESCRIPTION
Reference throughout the specification to “various embodiments,” “some embodiments,” “one embodiment,” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in various embodiments,” “in some embodiments,” “in one embodiment,” or “in an embodiment” in places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
Now, referring to Figure 1a, illustrates view of a rifle shooting system in accordance with an embodiment of the present subject matter. In one embodiment, the system 100 for rifle shooting may comprise a detecting device 101 to determine a position of a rifle 103. Further the said system may comprise a target means 107, wherein, a shooter participating in the sport may hit a target on the target means 107 using the rifle 103 from a defined distance. To hit a better score on the target means 107, the rifle 103 may not require additional device to be mounted on the rifle 103.
In accordance with exemplary embodiment, the detecting device 101 may be placed below the rifle 103 at pre-defined distance.
In another embodiment, the detecting device 101 may be configured to calculate the positions of rifle 103 including but not limited to a roll, a yaw, and a pitch. The position of the rifle 103, in x, y, z Cartesian Coordinates with respect to a reference frame may be determined by the detecting device 101. Further a live image processing means (not shown in figure) may be configured to determine the position of the rifle 103. The live image processing means may further be embedded with an algorithm to track the movement and position of the rifle 103 in real time. Further live image processing means may also be configured provide feedback to the shooter in real time.
In another exemplary embodiment the live image processing means may be integrated into the detecting device 101. The live image processing means may be a camera integrated into the detecting device 101, along with a processor. Further an area 105 may represent field of view of the camera within which the rifle moves.
In another exemplary embodiment as illustrated in Figure 1b, the target means 107 may comprise a front view facing the shooter. The target means 107 may communicate wirelessly with the display devices including but not limited to a tablet, a mobile or a computer device running a user-friendly application, wherein the user-friendly application may be configured to display the trajectory of the projected position of the barrel on the target in different colors, right before, during and after the shot and also, the position of the hit.
Referring to Figure 2, illustrates a block diagram of the detecting device in accordance with an embodiment of the present disclosure. The detecting device 101 may comprise at least one camera 201. In another exemplary embodiment additional camera may be mounted within the detecting device 101 at various position to capture the position, orientation and movement of the rifle 103 from all angles either in an image format or a video format.
The detecting device 101, may further comprise a processor 202. The processor 202 may be an ARM-processor based single board computer (SBC) 202.
In another embodiment, the single board computer (SBC) 202 may be embedded with an image processing algorithm, wherein the image processing algorithm may perform live image processing on the captured images of the barrel of the rifle 103 to determine movement and orientation of the rifle 103.
In yet another embodiment, the movement and orientation of the rifle 103 maybe determined by the calculation of position of the rifle 103 including but not limited to a roll, a yaw, and a pitch position, as well as x, y, z position of the rifle 103 wherein a live image processing means (not shown in figure) may be configured to determine the position of the rifle 103. Further, the algorithm may also be configured to perform various mathematical calculations to detect position of the hit, as well as score of the hit at a distance, which may vary based on shooting events.
Now, referring to Figure 3, which illustrates a projection view used for determining the movement and position of the rifle, in accordance with an embodiment of the present subject matter. In accordance with the embodiment P1 and P2 may be two arbitrary points of a tip of a barrel of the rifle 103. The points P1 and P2 may be represented with coordinates (x1, y1, z1) and (x2, y2, z2) respectively. Further a plane R may represent the shooting target, and a plane YZ illustrates the position of the detecting device 101. Further, the plane R is parallel to plane YZ.
In accordance with the exemplary embodiment two imaginary lines with angles may cross XY, YZ & XZ planes. Further the angles made by the imaginary lines with the planes may be illustrated as L1 (a1, ß1, ?1) and L2 (a2, ß2, ?2), wherein L1 represents the trajectory of the first calibration shot and L2 represents the trajectory of the second calibration shot.
In accordance with an exemplary embodiment L1 and L2 may pass through P1 and P2 on the YZ plane respectively. Two markings R1 & R2 may represent the position shots on the target (R Plane), wherein the position shots may be formed by intersection of Lines L1 and L2 with the plane R, at points R1 and R2 respectively, wherein the distance between R1 and R2 may be d.
Further a third shot fired by the shooter may be represented as R3 on the target means, with barrel position represented as P3(x3, y3, z3). Further an imagneary line joining R3 with the barrel tip position may be represented as L3(a3, ß3, ?3), wherein L3 makes angles with various planes. Further, the detecting device 101 may calculate y and z coordinates of R3 (xr, yr, zr). The values, x1, y1, z1, x2, y2, z2, a1, ß1, ?1, a2, ß2, ?2, d, x3, y3, z3, a3, ß3, ?3 may be calculated visually by image processing via the rifle position detecting device 101 mounted below the barrel of the rifle 103. Further, the coordinates yr & zr may be calculated mathematically by the algorithm in the single board computer (SBC) 202 to determine the position of the hit and the movement of the rifle just before and after the shot.
Now, referring to Figure 4, which illustrates a method for determining the position of the rifle and a corresponding score in accordance with an embodiment of the present subject matter. In an embodiment, the method 400 may comprise a step of capturing 401 the movement and orientation of the barrel of the rifle 103 using the detecting device 101, Further, the said method 400 may comprise a step of calculating 402 the movement and orientation of the barrel of the rifle 103. Further, the method may comprise a step of determining 403 a projected position of the barrel on the target, right before, during and after the shot and also the position of the shot and a corresponding score, using the rifle detecting device 101.
In an embodiment, in the step of capturing 401 the movement and orientation of the barrel of the rifle 103 the movement and orientation of the barrel maybe captured by a camera 201 configured in the position detecting device 101.
In one embodiment, in the step of calculating 402 the movement and orientation of the barrel of the rifle 103, the movement and orientation the barrel of the rifle 103 maybe calculated by determining the positions including but not limited to a roll, a yaw, and a pitch, as well as x, y, z position of the barrel of the rifle 103 with respect to a reference frame of the position detecting device 101, using live image processing on the data obtained by capturing the movement and orientation the barrel of the rifle 103.
In one embodiment, in the step of determining 403 a projected position of the barrel on the target, the algorithm embedded in the rifle detecting device 101 maybe configured to perform mathematical calculations on the calculated data of the roll, yaw, and pitch, as well as x, y, z position of the barrel of the rifle 103, and determine the projected position of the barrel on the target and generate a score corresponding to the hit position.
The embodiments, examples and alternatives of the preceding paragraphs or the description and drawings, including any of their various aspects or respective individual features, may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments unless such features are incompatible.
The foregoing description shall be interpreted as illustrative and not in any limiting sense. A person of ordinary skill in the art would understand that certain modifications could come within the scope of this disclosure. For limiting the scope of the invention, a subsequent Complete Specification will be filed to determine the true scope and content of this disclosure.
,CLAIMS:WE CLAIM:
1. A system 100 to determine the rifle position comprising:
a rifle 103;
a target means 107, wherein, the shooter is configured to hit a target on the target means 107 using the rifle 103; and
a detecting device 101, placed below the rifle 103 and configured to calculate the positions of rifle 103 in x, y, z position with respect to a reference frame and a roll, a yaw, and a pitch position, as well.
2. The system 100 as claimed in claim 1, wherein the detecting device 101 captures images of various positions or orientation of a barrel of the rifle 103.
3. The system 100 as claimed in claim 1, wherein the detecting device 101 comprises at least one camera 201, and a single board computer (SBC) 202.
4. The system 100 as claimed in claim 3, wherein the single board computer (SBC) 202 is embedded with an image processing algorithm, wherein the image processing algorithm performs live image processing on the captured images of the barrel to determine movement and orientation of the rifle 103.
5. The system 100 as claimed in claim 1, wherein the movement and orientation of the rifle 103 is determined by the calculation of position of the rifle 103 including but not limited to a roll, a yaw, and a pitch position, as well as x, y, z position of the rifle 103, wherein a live image processing means is configured to determine the position of the rifle 103.
6. The system 100 as claimed in claim 1, wherein the target means 107 communicate wirelessly with the display devices including but not limited to a tablet, a mobile or a computer device running a user-friendly application, wherein the user-friendly application is configured to display the trajectory of the projected position of the barrel on the target in different colors, right before, during and after the shot and also, the position of the hit.
7. A method 400 for determining the rifle position comprising steps of: capturing 401 the movement and orientation of the barrel of the rifle 103 using the rifle detecting device 101;calculating 402 the movement and orientation of the barrel of the rifle 103; and determining 403 a projected position of the barrel on the target, right before, during and after the shot and also the position of the shot and a corresponding score, using the rifle detecting means device 101.
8. The method 400 as claimed in claim 7, wherein in the step of capturing 401 the movement and orientation of the barrel of the rifle 103 the movement and orientation of the barrel is captured by a camera 201 configured in the position detecting device 101.
9. The method 400 as claimed in claim 7, wherein in the step of calculating 402 the movement and orientation of the barrel of the rifle 103, the movement and orientation the barrel of the rifle 103 is calculated by determining the positions including but not limited to a roll, a yaw, and a pitch, as well as x, y, z position of the barrel of the rifle 103 with respect to a reference frame of the position detecting device 101, using live image processing on the data obtained by capturing the movement and orientation the barrel of the rifle 103.
10. The method 400 as claimed in claim 9,wherein in the step of determining 403 a projected position of the barrel on the target, the algorithm embedded in the rifle detecting device 101 is configured to perform mathematical calculations on the calculated data of the roll, yaw, and pitch, as well as x, y, z position of the barrel of the rifle 103, and determine the projected position of the barrel on the target and generate a score corresponding to the hit position.
Dated this 23rd Day of March 2021

Priyank Gupta
Agent for the Applicant
IN/PA- 1454