What is the main structure of a drone？

As the drone market has grown in popularity, the novelty of technology has become a hobby and work partner.?However, only by understanding the construction of a drone can we truly understand and operate it well.

Generally speaking, the UAV has six major components, such as aircraft frame, flight control system, propulsion system, remote control, remote signal receiver?and gimbal system, etc.

1.??Aircraft frame

The frame is the main frame of multi-rotor UAV, which is mainly composed of center plate, moment arm and foot frame. The stand or fall of the frame?can be measured from the degree of firmness, lightness, rationality of the layout and so on. The multi-rotor frame has from two axes to more than ten axes. In the case of the same fuselage material and arm specifications, generally the more axes, the larger the fuselage load and the more complex the structure. The most important data indicator of the frame is the wheelbase, which is the distance between the two motor/propeller centers diagonally, usually in millimeters.

2.?Flight control

The so-called flight control of UAV is the flight control system of UAV, which mainly includes gyroscope (flight attitude perception), accelerometer, geomagnetic induction flight control, air pressure sensor (rough control of hover height), ultrasonic sensor (precise control of low altitude or obstacle avoidance), optical flow sensor (precise determination of hover horizontal position), GPS module (rough positioning of horizontal position height), And control circuit composition. The main function is to automatically maintain the normal flight attitude of the aircraft.

3.?Propulsion system

The propulsion?system of UAV is mainly based on motor. The electric propulsion?system mainly includes motor, electronic speed controller?, propeller and battery.?As the blades rotate, they create a reaction force that drives the body into flight. The system is equipped with electronic speed control, which is used to adjust the speed of the motor.

4.?Remote control?and remote signal receiver

Remote control to achieve the function of communication with the UAV needs two parts to complete. Namely: transmitter and receiver. The control stick on the remote control turns into radio waves and sends them to the receiver, which, by receiving the radio waves, reads the reading of the control stick on the remote control and converts it into a digital signal and sends it to the controller of the drone.

5.?Gimbal system

The Gimbal system?is the most important part of the whole aerial photography system. The performance of the gimbal?depends on whether the aerial video picture is stable.?Due to the existence of high-frequency vibration of aircraft in flight, if some equipment, such as cameras, are mounted directly, the image will be dithered and blurred. If drones?are mounted through the?gimbal, the vibration compensation function of the gimbal?itself can offset the impact of the vibration of the aircraft on the camera or other equipment, and the equipment mounted on the gimbal?can be operated. There are two axes and three axes. It mainly depends on the direction that can be controlled, such as horizontal, up and down, etc.