Technical Field of the Invention
The present invention relates to an improved simulator system for automatic grenade launching that consists of a replica of a firearm which provides target values with its realistic look and feel aspects.
Background of the Invention
The launching of grenades or other projectiles in a combat situation is an important part of military operations. There has been a definite need to provide more effective training for automatic or hand-held grenade launchers.
Classroom training can be insufficient in that it may not enable user to train in tactical applications of indirect fire. Traditional indirect-fire training systems have therefore tried to address these issues aby using a physical training system in which simulated ammunition is used.
In attempts to present a more realistic scenario and realistic feel of firearm operation, some firearm ranges have replaced fixed targets with animated video images, typically projected onto a display screen.
In spite of the developments in the field of training simulators for grenade launching, there exists a need for an improved simulator system that senses its operation and uses the data for analyzing a trainee’s performance.

Brief Summary of the Invention
According to an aspect of the present invention, an improved system for automatic grenade launcher simulator for indoor training is disclosed. The simulator system comprises of a replica of a firearm with an advanced laser unit having an accurate laser beam profile. The replica of the firearm comprises of an advanced sensor unit and a pneumatic recoil mechanism to generate recoil of a required rate of fire. The simulator system also comprises a display unit capitalised to display overall results of the finished exercise.
In accordance with the aspect of the present invention, the simulator system comprises of an instructor console which further comprises an instructor station, input-output module, a visual station. The 2 computers in the instructor console are loaded with diagnostic and calibration software’s. The instructor console leverages an instructor to start, pause, resume, monitor and stop an exercise from his console. The instructor console also comprises of special features to record, and replays the exercises for an after-action review and enables the instructor to print customizable performance reports.
In accordance with the aspect of the present invention, the simulator system also comprises of a visual module consisting of projector and a display screen, a tracking unit, a lane unit, an air compressor unit, and a master control unit.
In accordance with the aspect of the present invention, the replica of the firearm is seated on a tripod and the simulator system enables the instructor to provide training to a plurality of trainees singular or in plural, with a near-real environment of terrain, situation and realistic feel of firearm’s usage.
In accordance with the aspect of the present invention, the simulator system is pre-loaded with firearm characteristic data, a range table, a menu driven choice of rate of fire, type of ammunition, target profile, nature of practice, and techniques of engagement making the system versatile.

In accordance with the aspect of the present invention, the simulator system comprises of a library of responsive 3D human targets, vehicles, and a diverse operational terrains including a plain, a desert, a semi- desert, a jungle, mountainous and conventional scenarios with natural obstacles and built-up area environmental effects like day, night, & light conditions and wind effects.
In accordance with the aspect of the present invention, the replica of the firearm of the simulator system comprises a near-real firearm recoil and other effects of fire simulated programmable timed generation of effects of blasts with smoke range course and night firing with and without sight PAG-17 modules for practice with single target, group target, group depth targets and moving targets.
In accordance with the aspect embodiment of the present invention, the simulator system leverages different techniques of engagements like: a) lead calculation for moving targets, b) controlled correction, c) direct fire, d) use of aiming mark, e) group targets with ‘Limiters’, etc.
In accordance with the aspect of the present invention, the simulator system leverages calculation and display of fire planning table (Fire Control Chart); and computer based tutorials to familiarize trainees with the firearm.
In accordance with the aspect of the present invention, wherein the simulator system offers complete solution to training of 30 mm replica AGL crew in infantry and the trainee in loop has the benefit of near-real environment of terrain, situation and the firearm.
In accordance with the aspect of the present invention, wherein the application of advanced computer generated imaging technology and complex visualisation make the simulator system based training realistic and limits undue wear and tear of the firearm and cuts down expenditure of costly ammunition.

In accordance with the aspect of the present invention, wherein the simulator system provides for engagement of multi profile targets namely static and moving in various modes e.g. direct, indirect and anti-aircraft role.
In accordance with the aspect of the present invention, wherein the simulator system allows low-angle engagement of targets at ranges between 50 to 1730 meters and high-angle firing at targets between 1000 to 1730 meters.
In accordance with the aspect of the present invention, wherein the simulator system has provision to simulate a launch of a grenade with the help of the said launcher sight to a maximum distance of 800 meters.
In accordance with the aspect of the present invention, wherein the simulator system, accords the exercises are tailor-made for basic and familiarisation purposes, evaluation, validation, range course etc.
In accordance with the aspect of the present invention, wherein the simulator system is chambered for the low-velocity 40 mm cartridges, with accuracy and range, and enables trainee in loop has the benefit of real environment of terrain, situation and the firearm.
In accordance with the aspect of the present invention, the simulator system also comprises of a scenario builder application which allows the instructor to create customized tactical exercises.
In accordance with the aspect of the present invention, wherein the basic two lane simulator system is scalable up to eight lanes to meet the requirements of training institutions.
In accordance with the aspect of the present invention, wherein the firearm simulator is

trainee-served, often employed from fixed or semi fixed positions, typically at the battalion level.
Brief Description of the Drawings
A further understanding of the nature and advantages of various embodiments may be realized by reference to the following figures. In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.
Fig 1a illustrates an improved simulator system in accordance with an exemplary embodiment of the present invention for indoor training;
Fig. 1b illustrates a group target scenario being projected on the display system in accordance with the exemplary embodiment of the present invention;
Fig. 1c illustrates a single target scenario being projected on the display system in accordance with the exemplary embodiment of the present invention;
Fig. 1d illustrates a top view of the replica of a firearm in accordance with the exemplary embodiment of the present invention;
Fig. 1e illustrates a top view of the replica of the firearm in accordance with the exemplary embodiment of the present invention;
Fig. 1f illustrates a side sectional view of the replica the firearm in accordance with the exemplary embodiment of the present invention;

Detailed Description of the Invention
The subject matter of embodiments of the present invention is described here with specificity to meet statutory requirements, but this description is not necessarily intended to limit the scope of the claims. The claimed subject matter may be embodied in other ways, may include different elements or steps, and may be used in conjunction with other existing or future technologies. This description should not be interpreted as implying any particular order or arrangement among or between various steps or elements except when the order of individual steps or arrangement of elements is explicitly described.
Referring to Fig 1a, an improved simulator system (100a) in accordance with an exemplary embodiment of the present invention for indoor training is disclosed. The simulator system (100a) comprises of a replica of a firearm (102) with an advanced laser unit (114) having an accurate laser beam profile. The replica of the firearm comprises of an advanced sensor unit (not shown) and a pneumatic a recoil (116) mechanism to generate recoil of a required rate of fire. The simulator system comprising of a display unit (104) is capitalised to display overall results of the finished exercise.
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) comprises of an instructor console (106) comprises an instructor station, input-output module, a visual station (104), and are loaded with diagnostic and calibration software’s.
In accordance with the exemplary embodiment of the present invention, the instructor console (106) leverages an instructor (108) to start, pause, resume, monitor and stop an exercise from his console. The instructor console also comprises of special features to record, and replays the exercises for an after-action review and enables the instructor to print customizable performance reports.

In accordance with the exemplary embodiment of the present invention, the simulator system (100a) also comprises of a visual module consisting of projector and a display screen (104), a tracking unit, a lane unit (110), an air compressor unit, and a master control unit.
Referring to Fig’s. 1d, 1e and 1f the replica of the firearm (102) is seated on a tripod (118) and the simulator system (100a) enables the instructor (108) to provide training to a plurality of trainees singular or in plural, with a near-real environment of terrain, situation and realistic feel of a firearm’s usage.
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) is pre-loaded with firearm characteristic data, a range table, a menu driven choice of rate of fire, type of ammunition, target profile, nature of practice, and techniques of engagement making the system versatile.
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) comprises of a library of responsive 3D human targets, vehicles, and a diverse operational terrains including a plain, a desert, a semi- desert, a jungle, mountainous and conventional scenarios with natural obstacles and built-up area environmental effects like day, night, & light conditions and wind effects.
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) comprises a near-real firearm recoil and other effects of fire simulated programmable timed generation of effects of blasts with smoke range course and night firing with & without sight PAG-17 modules for practice with single target, group target, group depth targets (112) and moving targets (112).
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) leverages calculation and display of fire planning table (Fire Control Chart); and computer based tutorials to familiarize trainees with the firearm.

In accordance with the exemplary embodiment of the present invention, wherein the simulator system (100a) offers complete solution to training of 30 mm AGL (102) crew in infantry and the trainee in loop has the benefit of near-real environment of terrain, situation and the firearm.
In accordance with the exemplary embodiment of the present invention, wherein the application of advanced computer generated imaging technology and complex visualisation make the simulator based training realistic and limits undue wear and tear of the firearm and cuts down expenditure of costly ammunition.
In accordance with the exemplary embodiment of the present invention, wherein the simulator system (100a) provides for engagement of multi profile targets (112) namely static and moving in various modes e.g. direct, indirect and anti-aircraft role.
Referring to Fig. 1b & 1c, the simulator system (100a) boasts single and group target scenario, projected on the display system in accordance with the exemplary embodiment of the present invention.
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) leverages different techniques of engagements like: a) lead calculation for moving targets (112); b) controlled correction; c) direct fire; d) use of aiming mark; e) group targets (112) with ‘Limiters’, etc.
In accordance with the exemplary embodiment of the present invention, wherein the simulator system (100a), allows low-angle engagement of targets (112 shown in Fig. 1b & 1c) at ranges between 50 to 1730 meters and high-angle firing at targets between 1000 to 1730 meters.
In accordance with the exemplary embodiment of the present invention, wherein the

simulator system (100a) has provision to simulate a launch of a grenade with the help of the said launcher sight to a maximum distance of 800 meters.
In accordance with the exemplary embodiment of the present invention, wherein the simulator (100a) accords the exercises are tailor-made for basic and familiarisation purposes, evaluation, validation, range course etc.
In accordance with the exemplary embodiment of the present invention, wherein the simulator (100a) is chambered for the low-velocity 40 mm cartridges, with accuracy and range, and enables trainee in loop has the benefit of real environment of terrain, situation and the firearm.
In accordance with the exemplary embodiment of the present invention, the simulator system (100a) also comprises of a scenario builder application which allows the instructor to create customized tactical exercises.
In accordance with the exemplary embodiment of the present invention, wherein the basic two lane simulator system (100a) is scalable up to eight lanes to meet the requirements of training institutions.
In accordance with the exemplary embodiment of the present invention, wherein the firearm simulator (100a) is trainee-served, often employed from fixed or semi fixed positions, typically at the battalion level.
Specific details are given in the description to provide a thorough understanding of the embodiments. However, it will be understood by one of ordinary skill in the art that the embodiments may be practiced without these specific details. For example, well- known structures and techniques have been shown without unnecessary detail in order to avoid obscuring the embodiments. This description provides example embodiments only, and is not intended to limit the scope, applicability, or configuration of the invention. Rather, the

preceding description of the embodiments will provide those skilled in the art with an enabling description for implementing embodiments of the invention. Various changes may be made in the function and arrangement of elements without departing from the spirit and scope of the invention.
Having described several embodiments, it will be recognized by those of skill in the art that various modifications, alternative constructions, and equivalents may be used without departing from the spirit of the invention. For example, the above elements may merely be a component of a larger system, wherein other rules may take precedence over or otherwise modify the application of the invention. Also, a number of steps may be undertaken before, during, or after the above elements are considered. Accordingly, the above description should not be taken as limiting the scope of the invention.
Also, the words "comprise", "comprising", "contains", "containing", "include", "including", and "includes", when used in this specification and in the following claims, are intended to specify the presence of stated features, integers, components, or steps, but they do not preclude the presence or addition of one or more other features, integers, components, steps, acts, or groups.

5. CLAIMS I/We Claim
1. An improved automatic grenade launcher simulator system (100a) for indoor training,
wherein the simulator system comprises of:
a. a replica of a firearm (102) with:
i. an advanced laser unit (114) with an accurate laser beam profile; ii. an advanced sensor unit (not shown) for displaying results for a trainer’s immediate feedback during exercise, and overall results of the finished exercise; and iii. a pneumatic recoil mechanism (116) to generate the recoil of the required rate of fire;
b. an instructor console (106) comprising of two computers loaded with an
instructor station, input-output(106), a visual station (104), a diagnostic and
calibration software;
c. the instructor console (106) leverages an instructor (108) to start, pause,
resume, monitor and stop an exercise from his console;
d. the instructor console also comprises of special features to record, and replay
the exercises for an after action review and enables the instructor to print
customizable performance reports;
e. a visual module consisting of projector and a display screen (104).,
f. a tracking unit;
g. a lane unit (110);
h. an air compressor unit;
i. a master control unit;
j. the replica of the firearm (102) is seated on a tripod (118); and
k. the simulator system enables the instructor (108) to provide training to a
plurality of trainees singular or in plural, with a near-real environment of
terrain, situation and realistic feel of firearm’s usage.
2. The system (100a) as claimed in claim 1, wherein the simulator is pre-loaded with

firearm characteristic data, a range table, a menu driven choice of rate of fire, type of ammunition, target profile, nature of practice, and techniques of engagement making the system versatile.
3. The system (100a) as claimed in claim 1, wherein the system comprises of:
a. a library of responsive 3D human targets (112) and vehicles;
b. diverse operational terrains including plain, desert, semi- desert, jungle,
mountainous and conventional scenarios with natural obstacles and built-up
area;
c. environmental effects like day, night, & light conditions and wind effects;
d. a near-real firearm recoil and other effects of fire simulated;
e. programmable timed generation of effects of blasts with smoke;
f. range course and night firing with & without sight PAG-17;
g. modules for practice with single target, group target, group depth targets (112)
and moving targets (112);
h. techniques of engagement include lead calculation for moving targets (112), controlled correction; direct fire, use of aiming mark, group targets (112) with ‘Limiters’; i. calculation and display of fire planning table (Fire Control Chart); and j. computer based tutorials to familiarize trainees with the firearm.
4. The system (100a) as claimed in claim 1, wherein the simulator offers complete solution to training of 30 mm grenade launching replica firearm (102) crew in infantry and the trainee in loop has the benefit of near-real environment of terrain, situation and the firearm.
5. The system (100a) as claimed in claim 1, wherein the application of advanced computer generated imaging technology and complex visualisation make the simulator based training realistic and limits undue wear and tear of the firearm and cuts down expenditure of costly ammunition.

6. The system (100a) as claimed in claim 1, wherein the simulator provides for engagement of multi profile targets (112) namely static and moving in various modes e.g. direct, indirect and anti-aircraft role.
7. The system (100a) as claimed in claim 1, wherein the simulator:
a. allows low-angle engagement of targets(112) at ranges between 50 to 1730
meters and high-angle firing at targets between 1000 to 1730 meters;
b. has provision to simulate a launch of a grenade with the help of the said
launcher sight to a maximum distance of 800 meters;
c. accords the exercises are tailor-made for basic and familiarisation purposes,
evaluation, validation, range course etc;
d. is chambered for the low-velocity 40 mm cartridges, with accuracy and range;
and
e. enables a trainee in loop has the benefit of real environment of terrain, situation
and the firearm.
8. The system (100a) as claimed in claim 1, wherein the system comprises of a scenario builder application which allows the instructor to create customized tactical exercises.
9. The system (100a) as claimed in claim 1, wherein the basic two lane AGL simulator (102) is scalable up to eight lanes to meet the requirements of training institutions.
10. The system (100a) as claimed in claim 1, wherein the firearm simulator is trainee-served, often employed from fixed or semi fixed positions, typically at the battalion level.