Research On Flight Control System Of UAV

In recent years, many countries pay more and more attention to the developmentof UAV technology with wide application of UAV, putting forward higher requests tothe UAV technology. In flight control, the shortcomings of traditional GCS remotecontrol are more and more obvious, which requires the UAV to realize autonomousflight control.Based on the analysis of existing principle and system structure on UAV flightcontrol, this paper designs UAV flight controller based on LPC2148 microprocessor.What’s more, the paper has deep research on the structure and operational principle ofsensing device which is UAV flight parameter acquisition in need of, and also designsthe relevant interfaces that are connected with these transducer and microprocessor.By PID control algorithm programming, the flight control system composed of themicroprocessor and the sensors can chieve autonomous flight control-orientedfunctions, overcoming the shortcomings of GCS control to some extent, realizing wayof conversion control between UAV remote control and autonomous flight, furtherimproving the safety of unmanned aerial vehicles. In this paper, circuit board weldingand final testing was completed, and each module was debugged and tested onfunction. The experimental result shows that each sensor can normally collect dataand output them to the microprocessor, then the microprocessor can accuratelyreceive data and process the data, thus achieving the relevant functions.In addition, this paper completes navigation of UAV computer vision research intheory, seeing that it is rather difficult to land for UAV. With the images collected byonboard camera are processed by a series of steps, real-time attitude parameter ofUAV landing process is obtained through the coordinate transformation, and thenthese are outputted to the microprocessor for flight control.ecent years, manycountries pay more and more attention to the development of the UAVtechnology ,with the increasingly rang of applications of UAV, ,at the same time,theypropose higher requirements for UAV technology.In the field the fight control,thetraditional of GCS remote control expose mroe and more shortcomings,whichrequires the UAV to achieve autonomous fight control.