Muzzle flash simulator and method for generating light trail

A method for generating a light trail, applicable to a muzzle flame simulator, wherein the muzzle flame simulator comprises:

• a projectile passage disposed inside the muzzle flame simulator, the projectile passage being coaxial with a projectile flight trajectory;
• a projectile sensor coupled to a controller and configured to send a trigger signal to the controller in response to detecting a projectile passing through the projectile passage;
• the controller comprising a signal generator circuit, wherein the signal generator circuit is configured to output at least two preset periodically changing control signals, and the controller is configured to start the signal generator circuit in response to detecting the trigger signal sent by the projectile sensor to control the signal generator circuit to output the at least two preset periodically changing control signals;
• and
• at least one simulating flame light source coupled to the controller, wherein the at least one simulating flame light source each comprises the at least two illuminating components with different colors, and the at least two illuminating components with different colors are configured to periodically emit light of different colors to the projectile based on the at least two preset periodically changing control signals to form a light trail;
• wherein the method comprises:
• generating, by the projectile sensor, a trigger signal in response to detecting a projectile passing through a projectile passage inside the muzzle flame simulator;
• starting the signal generator circuit in response to detecting, by the controller, the trigger signal sent by the projectile sensor, to output at least two preset periodically changing control signals, wherein the at least two preset periodically changing control signals are respectively configured to control brightness, an on state, and an off state of the at least two illuminating components with different colors;
• and the signal generator circuit is a digital signal generator circuit or an analog signal generator circuit;
• and
• periodically emitting, by the at least two illuminating components with different colors of each of the at least one simulating flame, light of different colors and intensities to the projectile based on the at least two preset periodically changing control signals, to form a corresponding light trail based on a projectile flight trajectory;
• wherein for each of the at least two preset periodically changing control signals, the control signal contains a positive voltage signal, a duration of the positive voltage signal is calculated by a formula:
• 3
• ⁢
• T
• 2
• ⁢
• n
• T represents a period of the control signal, T is less than 0.1 seconds, n represents the number of colors of the illuminating components, and n is greater than 1;
• wherein a phase difference between two adjacent control signals among the at least two preset periodically changing control signals is calculated by a formula
• 360
• ⁢
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• n
• .