Counter UAV: You must first know the flight steering principle of quadrotor UAV
According to Newton's third law, the action of forces is mutual. In order for the plane to go up, it needs upward force. The rotor rotates continuously to make the air flow rapidly, just like an electric fan blowing a gust of wind, and the rotor squeezes the air to make it flow downward. Instead, the air has an upward force on the rotor. This is how the plane goes up. The quadrotor UAV can control the magnitude of the lift force by controlling the speed of the motor speed. The faster the speed, the greater the lift force; the smaller the speed, the smaller the lift force. Now define the lifting force of the motor rotation as F, and the weight of the drone itself as G. When F is greater than G, the drone will rise; when F is equal to G, the drone will hover; when F is less than G, the drone will decline.
The motors M1/M2/M3/M4 of the quadrotor UAV, in which M1 and M3 rotate clockwise, and M2 and M4 rotate counterclockwise, so as to offset the horizontal resultant force.
If the initial state of the drone is hovering horizontally in the air, if the motor speed of M2/M4 remains unchanged and the speed of M1/M3 decreases, the drone will turn horizontally clockwise; if the motor speed of M1/M3 remains unchanged, M2/M4 When the rotational speed decreases, the UAV turns counterclockwise horizontally; if the rotational speed of M1/M2/M3/M4 decreases at the same time, the UAV falls vertically; if the rotational speed of M1/M2/M3/M4 increases at the same time, the UAV decreases If the rotation speed of M1/M4 remains unchanged, the rotation speed of M2/M3 becomes smaller, and the right side of the UAV fuselage is properly tilted downward, resulting in a horizontal rightward resultant force, and the horizontal flight to the right; M2/M3 rotation speed remains unchanged, M1 The rotation speed of /M4 becomes smaller, and the left side of the UAV fuselage is properly tilted downward, which generates a horizontal leftward force and flies horizontally to the left.
