Abstract:
Shooting simulators for firearm training are effective in improving the marksmanship
of personnel in different law enforcement agencies like police, armed forces and also in
shooting athletes. In order to achieve the best training quality in these training simu lators, the weapon’s shooting process needs to be replicated to provide the perception
of a real shot being fired. A user friendly shooting simulator should provide reliable
and accurate information about impact time and hit location at the target of the shot
fired from the weapon. Desirably shooting process should display the margin by which
a shot missed the target. The impact time at the target is based on the direction and
speed of weapon as well as the target and also on the delay time of projectile. We
propose a shooting training system with accurately modelled recoil usable for indoor
training. It consists of three basic components: a graphic component for visualization,
a haptic component for recoil simulation and a tracking component for simulation of
shot trajectory. Graphics component displays a moving object to firer. The haptic
component uses a custom designed haptic device that works on pulses of compressed
air. It contains pneumatic valves that provide rearward pressure consistently to pro vide recoil. The tracking module includes visible laser mounted on a weapon that is
activated by a trigger press. A stationary camera captures the position of laser pointer
on the projector screen using image processing. Various different training scenarios
are designed to evaluate the efficacy of the proposed shooting training system. A user
study was conducted on subjects from different backgrounds to check the accuracy of
our system and of user marksmanship. Subjective analysis indicates high resemblance
to live shooting training indicating that the designed haptic device is a reasonable
option to provide immersion of real shot fired and system is helpful in improving the
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marksmanship.
