微小型空中机器人大容量数据记录仪的设计与实现

Design and implementation of high-capacity data recorder for micro aero robot

为了满足微小型空中机器人对数据记录的需要,提出一种采用PIC18LF4550微控制器和Flash存储器实现大容量、快速存储、质量轻、体积小的数据记录仪设计方案,功能单元包括Flash存储模块、接口模块、电源转换模块、模式检测等模块,设计开发了相应程序。测试和应用结果表明:该数据记录仪存储速度快,能够对输入速度为4 000 Byte/s的数据可靠存储;通过USB接口,实现数据高速输出;存储容量大,达到了1 Gbyte;功耗低,体积和质量能够满足微小型空中机器人的需求。通过模式检测模块的设计,数据记录仪能自动识别工作在数据存储模式或数据读出模式,使用方便、可靠。

To meet requirement for data recording in modern micro unmanned aerial vehicle(UAV),a high-capacity data recorder based on PIC18LF4550 microcontroller and Flash memory is designed.Systematic plan and operation principle of all the modules are analyzed in detail.Four basic modules of the hardware of the data recorder are described,including the power transition module,communication interface module,flash memory module and mode-detection module.This data recorder has been tested in real time experiments.In the real time tests,the recorder can store data in a speed of 4 000 Byte/s.The storage capacity of the recorder is up to 1 Gbyte while the power is low.These results show that the data recorder can fulfill the requirements of many micro UAVs for its large-capacity storage,low mass,and high speed.