RESEARCH AND ASSEMBLY OF A MULTIROTOR UNMANNED AERIAL VEHICLE CONTROL SYSTEM

The study and assembly of a control system for a multirotor unmanned aerial vehicle is considered. The UAV has been fully informed and its significance has been determined to date. A quadcopter was taken as the control object. UAVs have been studied, their type is different and a mathematical model of the control object, the principle of operation and movement of the quadcopter has been compiled. Depending on the design and shape of the UAV, the principle of operation, multirotor, fixed-wing, single-rotor unmanned helicopters, hybrid types were distinguished. The multirotor type of UAV was considered, including the design and details of the quadcopter, explanations were given depending on their type and design. The analysis of the principle of operation is carried out.
The control of the quadcopter is mainly divided into two parts: the ground operator and the on-board system. The ground operator transmits information to the quadrocopters using the high-altitude directional transmitter he needs, that is, the control panel. Most of them have 4 channels and operate at a frequency of 2.4 GHz. In some transmitters, the number of these channels can reach 7 or 10. The receiver in the on-board system received the information and transmitted it to the NC. NC calculates the force, voltage, and speed applied to each motor to turn in the direction desired by the operator. And the electronic speed controller is used to adjust the speed required by the engines. By changing the speed of each engine, we change its direction. The effect of screws on the types of changes in the direction of flight of a quadcopter, i.e., a change in the direction of the device under the influence of the thrust force acting on each screw, has been established.  The movement of the device has 6 directions: roll, yaw, pitch, down-up, forward-backward, right – left. 

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