JPH04194599A - Method of judging gun hit in simulation - Google Patents

Abstract

PURPOSE:To reduce a load on a calculator and to enable a real time simulation to be carried out to judge if a bullet accurately hits by a method wherein the hit is judged if a target is placed within a column with a line axis connecting a position of an initial bullet with a position of a final bullet continuously launched, and with an allowable tolerance as a radius. CONSTITUTION:A position B1(tk) at a time tk after a trigger for the bullets continuously launched and a position Bf(tk) of the final bullet are calculated, a linear line connecting the position B1(tk) of the initial bullet and the position B1(tk) of the final bullet is applied as an axis and a radius is an allowable tolerance R to form a column and it is judged hit if the target item is within the column. The aforesaid calculation is repeated from a time when a trigger is pulled to an appropriate time in which a position of a self plane, a position of an enemy plane and a speed of bullet are judged, thereby a presence or non-presence of the hit bullet when the trigger is once pulled can be judged. With such an arrangement, a calculation of a trajectory for about 100 bullets is carried out by the calculation for two bullets, resulting in that a load for a computer can be reduced and then a real time simulation regarding a presence or a non-presence of hit can be carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for determining gun hit in simulation.

[Conventional technology]

The conventional method for determining gun hit in simulation is
The trajectory of each of the approximately 100 bullets fired when the trigger was turned on was calculated and compared to the target to determine whether the weapon hit the target.

[Problems to be Solved by the Invention] In the conventional method, the trajectory is calculated for about 100 bullets fired when the trigger is pulled.

Performing simulations places a heavy load on computers, and it is difficult to perform real-time simulations with current computers.

The present invention seeks to solve the above problems.

[Means to solve the problem]

The gun hit determination method in the simulation of the present invention is to find the position of the first bullet and the position of the last bullet after a predetermined period of time after consecutively fired bullets, and to calculate the allowable error using the line connecting the positions of the first bullet and the last bullet as an axis. It is characterized by forming a cylinder with a radius, and determining a hit if the target is within the cylinder.

[Effect]

In the above, the bullets are moderately dispersed within a cylinder whose axis is the line connecting the position of the first bullet and the position of the last bullet at a predetermined time after the trigger is pulled, and whose radius is the tolerance. If there is a target inside, it can be determined that the bullet has hit the target.

As a result of the above, trajectory calculations for approximately 100 bullets only need to be calculated for two bullets, so the load on the computer can be reduced, and real-time simulation of whether the bullets hit or not is possible.

〔Example〕

An embodiment of the present invention will be described with reference to FIG.

The present embodiment shown in FIG. The position of the first bullet at B+(t
k) and the position Bt (tk) of the final row, form a cylinder whose axis is the straight line connecting the position B+(th) of the first bullet and the position Bf (tk) of the final row, and whose radius is the tolerance R, and the target is If it is within the same cylindrical shape, it is determined to be a hit.

In the above, the position of the first bullet at a certain time 1k after pulling the trigger obtained by trajectory calculation is B + (tk), the position of the last column is B; (t, l), and the position of the first bullet Bl (
tk ) and the position B of the last row, a cylinder whose axis has a permissible error R and whose axis is a straight line is defined as the bullet distribution range. Also, the position of the target aircraft at time ta Xt9t(
The length of the perpendicular line drawn from tk) to the straight line connecting B+(ta) and By(tk) is defined as h(t,). knee, h
If (th)≦P, it is determined that the bullet has hit the target aircraft,
If h(tk)>R, it is determined that the bullet did not hit the target aircraft. By repeating the above calculation from the time the trigger is pulled to an appropriate time determined from the own aircraft position, the target aircraft position, and the velocity of the bullet, it is possible to determine whether or not there will be a hit when the trigger is pulled once. can be determined.

As a result of the above, trajectory calculations for about 100 bullets only need to be calculated for two bullets, so the load on the computer can be reduced, and real-time simulation of whether the bullets hit or not is possible.

〔Effect of the invention〕

The gun hit determination method in the simulation of the present invention is to determine a hit if the target is within a cylinder whose axis is a line connecting the first bullet of successively fired bullets and the position of the last row, and whose radius is an allowable error. By doing this, the trajectory calculation for about 100 bullets fired when the trigger is pulled only needs to be calculated for two bullets, reducing the load on the computer and making it easier to determine whether the bullet hit or not. Real-time simulation becomes possible.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a hit determination method according to an embodiment of the present invention. Agent: Patent attorney Akira Sakama, 2 people, 81 figures

Claims (1)

[Claims] Find the position of the first bullet and the last bullet after a predetermined time of consecutive bullets, form a cylinder whose axis is the line connecting the positions of the first bullet and the last bullet, and whose radius is the tolerance. A gun hit determination method in simulation, characterized in that a gun hit is determined to be hit when there is a target.