Design And Implementation Of Multi-Rotor UAV Detection System Based On Open Source Flight Control

In recent years,with the development of technologies related to electronic,communication,materials,power and other unmanned aerial vehicles,multi-rotor unmanned aerial vehicles(UAV)have became more and more popular in the fields of fire protection,aerial photography,disaster investigation,power inspection,express delivery and other civil consumption.Assembling drones and mounting mission equipment on finished drones to meet the needs of drone applications has become the choice of more consumers,but it also brings new challenges to flight safety.Through the analysis of the accident damage of the multi-rotor UAV and its mounted equipments,the drone parameters are improperly set,the accessories are unreasonably matched,and the drones are offset after the mission equipments mounted.At the moment of take-off because of the imbalance of the rotor power and the large amount of electric energy consumed to adjust the flight attitude during the flight,which is the main cause of the damage of the drone and its mission equipments.Therefore,the pre-flight attitude analysis and detection ofthe unmanned aerial vehicles after production,assembly and mounting of the mission equipments has become an effective means to avoid and redLuce the loss of the drone and its mission equipmentsBased on the actual requirements of the avoidance of UAVs.based on the in-depth research and analysis of the existing multi-rotor UAV detection methods and detection requirements,the STM32F427 main processor,MPU6050 attitude sensor and 433M wireless transmission module are mainly used.A detection system based on the open source control of the UAV is proposed,which is different from the existing multi-rotor UAV test platform.The entiire inspection system is designed and implemented using a modular design approach.In terms of the hardxware test bench,the ball-type universal head,the perforated carbon fiber support board,etc.are used as the test bench basis,and the open source fliight control Pixhawk including the STM32F427 main processor,the STM327103 coprocessor and the MPU6050 attitude sensor is selected as the equipment of Test station attitude acquisition and data transmission implementation,using USB and 3DR wireless modules to complete data transmission,2S LiPo battery and UBEC step-down module to achieve detection system power supply;in terms of software implementation,through the detection system,the wired and wireless transmission of attitude data and control data is realized.According to the real-time obtained UAV attitude data,the visual display and data of the figure data digital,curve and instrument panel are completed.According to the change of attitude angle,combined with the flight principle of multi-rotor UAV,the possible reasons for the change of the attitude of the UAV are analyzed,and the suggestions for the adjustment of the center of gravity and the power of the rotor are given.After testing and verification,the multi-rotor UAV detection system proposed and implemented in this paper has achieved the expected design goals,and has certain guiding significance for UAV operators and related engineering personnel to carry out UAV debugging and performance analysis.