Unmanned aerial vehicle (UAV) is an unmanned aircraft. It is an unmanned aircraft using radio remote control equipment and its own program control device. The drone autopilot subsystem is the core system for the entire flight process of the drone to complete takeoff, air flight, mission execution and return to the field. The drone autopilot is equivalent to the role of the pilot in manned aircraft. One of the core technologies. Flight control generally includes three parts: sensors, on-board computers, and servo actuation equipment. The functions implemented mainly include three categories: UAV attitude stabilization and control, UAV mission equipment management, and emergency control.
The control of UAV flight usually includes the control of the rudder surface such as direction, aileron, lift, throttle, flaps, etc., and the aircraft's wing surface is changed by the servo to generate corresponding torque, which controls the aircraft to turn, climb, dive, roll, etc. . Generally speaking, when the attitude is stable, controlling the rudder will change the course of the aircraft, usually causing a certain angle of roll. On a plane with good stability, it looks like the car is turning on the ground. . Rudder is the most commonly used method for automatic control of turning. The disadvantage of rudder turning is that the turning radius is relatively large, which is slightly less maneuverable than aileron turning. The function of the aileron is to control the roll of the aircraft. When a fixed-wing aircraft rolls, it will turn in the direction of the roll and will drop a certain height. The role of the elevator is to perform the pitch control of the aircraft, the pull rod is raised, and the push rod is lowered. When the lever is pulled, the aircraft looks up and climbs. The conversion of kinetic energy to potential energy will reduce the speed. Therefore, the airspeed should be monitored during control to avoid stall due to excessive lever pulling. The role of the throttle rudder is to control the speed of the aircraft engine. Increasing the throttle will increase the power of the aircraft, accelerate or climb, and vice versa.
airplane autopilot is an advanced autopilot for academic and commercial integrators. Designed by CUAV in collaboration with the PX4 team. Based on the Pixhawk FMU v5 open hardware design, a highly modular board using Pixhawk standard pinouts for its external interface, allowing for carrier board integration. Out of the box pre-installed with PX4 Open Source Autopilot, and fully supported by ArduPilot.
An autopilot is a system used to control the trajectory of an aircraft without constant ‘hands-on’ control by a human operator being required. Autopilots do not replace human operators, but instead they assist them in controlling the aircraft. This allows them to focus on broader aspects of operations such as monitoring the trajectory, weather and systems. The autopilot is often used in conjunction with the autothrottle, when present, which is the analogous system controlling the power delivered by the engines.
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