What are the components of UAV flight control system?

The flight control system of UAV consists of gyroscope (angular velocity meter), PID controller, inertial measurement unit and satellite positioning system.

Gyroscope (angular velocity meter): The angular motion detection device is based on the principle of conservation of angular momentum, which uses the angular momentum sensitive shell of a high-speed rotating body to rotate around one or two axes orthogonal to the rotation axis relative to the inertial space.

2.PID control: after the flight control decodes the data of the attitude sensor, it adjusts the attitude according to the fusion result of the two, and the electric modulation is controlled by the signal. This control method is called PID control. P (proportional) I (integral) D (differential).

3. Inertial measurement unit: Inertial measurement unit is a device for measuring the three-axis attitude angle (or angular rate) and acceleration of an object. IMU includes three single-axis accelerometers and three single-axis gyroscopes. The accelerometer detects the three-axis acceleration signal of the object in the carrier coordinate system, and the gyroscope detects the angular velocity signal of the carrier relative to the navigation coordinate system, and measures the angular velocity and acceleration of the object in three-dimensional space, thus calculating the attitude of the object.

4. satellite positioning system: GPS is the abbreviation of global positioning system. GPS was started as a project of the US military in 1958 and put into use in 1964. In 1970s, the United States army, navy and air force jointly developed a new generation of satellite positioning system GPS. The main purpose is to provide real-time, all-weather and global navigation services for land, sea and air, and to be used for some military purposes such as intelligence gathering, nuclear explosion monitoring and emergency communication. After more than 20 years of research and experiments, it cost 30 billion dollars. By 1994, 24 GPS satellite constellations with global coverage of 98% have been deployed.

5. Unmanned aircraft is an aircraft managed by a control station (including remote control or autonomous flight). UnmannedAerialVehicle (UAV), UAV, Unmanned Aerial System (UAS), RemotelyPilotedAircraft(RPA) and other English names. UAV is the abbreviation of UAV, and UAV refers to an unmanned aerial vehicle that needs pilots to fly remotely. Unmanned aerial vehicle (UAV) is an unmanned aerial vehicle with certain autonomous flight capability; UAS refers to a system consisting of UAV and its related remote control stations (stations), mission load and control links, while RPA emphasizes that UAV is a "remote control aircraft" controlled by pilots from the perspective of UAV pilots.