The Design And Implementation Of The Micro-uav Flight Control System

Micro UAV flight control system (FCS) is researched in this paper, and the automatic FCS is designed. The system uses a large number of new products of micromechanical and microelectronic technology, compositing the functionality and performance of the UAV control subsystem, the advantages of digital systems are fully exerted.The specific contents of the study are as follows:1. This paper sets up a micro UAV's figure model in this paper and develops a control law for attitude hold and trajectory control of unmanned planes. The numerical simulation results showed that the control law achieved the function of pose stability and posture according to the designated route.2. A micro-UAV flight control hardware system has been designed. The selection of units must meet the requirements of adequate performance, low power consumption, miniaturization and digitalization.The core solver and control unit is TMS320F2809 chip, sensors adopts the Micro-Electro-Mechanical System(MEMS), including mature products such as inertia measurement unit (IMU), small size digitalized steering engine, GPS receiver, magnetic course sensor, pressure-altitude and airspeed sensor, etc. The hardware system meets the requirements after debugging .3. Modular designs on flight control and management software are carried out in this paper, which includes sub-module of control law computation, sub-module of telemetry & telecontrol data transmission, sub-module for monitoring signal collection as well as management of task and equipment, etc. The developed flight control software realizes control and management of unmanned planes and meets the design requirements on flight control and task management of unmanned planes.In conclusion, this paper describes various grounds and system configuration of the flight tests and completes a hardware-in-loop simulation test of the whole system, a sports car test was done to verify the dynamic performance of the sensors, during the acceptance period, we did a actual flight test and found all data meet the general design requirements.The Mini UAV flight control system design in this paper has a strong value in engineering application and marketing.