基于STM32单片机的无人机安全预警系统研究

Research on UAV Safety Early Warning System Based on STM32 Microcontroller

针对现代无人机巡航作业过程中存在的检测自身安全状态的安全预警系统需求,本文基于皮托管测速原理的风速检测传感器对实时数据进行测量,使用STM32单片机在各旋翼附近一定范围内进行采集,并根据二分法原理,将其与理论数据进行自动对比计算。同时,将实时安全状态信息作为是否初始化蜂鸣器驱动电路的判断依据,从而实现对操作员的报警提示。结果表明:该系统不仅能完成巡航作业过程中自身的安全预警,而且满足现场的使用要求。

In view of the requirements of the safety early warning system for detecting its own safety status during the cruise operation of modern UAVs,this paper measures the real-time data based on the wind speed detection sensor based on the pitot tube velocity measurement principle,uses STM32 microcontroller to collect the data within a certain range near each rotor,and automatically compares and calculates the data with the theoretical data accord-ing to the dichotomy principle.At the same time,the real-time safety state information is used as the judgment ba-sis for whether to initialize the buzzer drive circuit,so as to realize the alarm prompt to the operator.The results show that the system can not only complete its own safety warning in the course of cruise operation,but also meet the requirements of field use.