摘要
分析了μC/OS-Ⅱ在小卫星相机分系统中应用的优点及可行性。主要介绍了一种基于浮点型DSP和嵌入式实时操作系统μC/OS-Ⅱ的空间相机下位机系统设计方法,并通过CAN总线实现了与上位机的通信,RS485总线实现与调焦、成像等单元的通信。最后给出了通信控制与调焦控制的实验结果,结果表明该方法设计的相机下位机结构简单、成本低、数据处理能力强且可靠性高、实时性较好。
The advantages and the feasibility of μC/OS-Ⅱ system applying in small satellite subsystems are an- alyzed. The design method of small satellite camera controller system based on float DSP and embedded real time operation system（RTOS） μC/OS-Ⅱis introduced. The communication to host computer through CAN and communication to focusing unit and imaging unit through RS485 are realized. The experiment results of commu- nicating control and focusing control show that this method has many merits such as simple architecture, low cost, high data-processing capability, high reliability and good real-time performance.
出处
《测控技术》
CSCD
北大核心
2013年第5期48-51,共4页
Measurement & Control Technology
基金
国家自然科学基金资助项目(61108066)
