基于ARM微控制器的飞行数据记录仪设计

Design of flight data recorder based on ARM microcontroller

为了实时记录无人直升机的飞行数据,为后续分析直升机飞行状态、建立数学模型提供方便,介绍了一种实用性强、通用性好、移植方便的数据记录仪软硬件设计方案。本方案采用ARM内核微处理器结合SD卡以及文件系统的设计,并扩展出常用的通信接口以适应与使用不同通信协议的设备互连。经实际运行测试,记录仪能够很好地将数据存入建立的文件中,为后续数据分析、曲线绘制等工作提供了方便,具有一定的推广意义和实用价值。

To record the flight data of unmanned helicopter in real time,and for the convenience of subsequent analysis of the helicopter′s flight state and mathematical modeling,in this paper,a data recorder with the features of good practicability,generality and convenient to transplantation is designed with software and hardware solution.This solution is designed with ARM microcontroller combined with SD card and the file system,and commonly used communication interfaces are added to connect with different devices using different communication protocols.By actual running tests,the flight data can be well stored in the file set up before,and provides the convenience for subsequent data analysis,curve drawing and so on.Also,it has certain significance for popularization and practical value.