基于嵌入式LINUX的MTU的设计和实现

【作者】 褚小楷；

【导师】 张科；

【作者基本信息】 西北工业大学 ， 导航、制导与控制， 2005， 硕士

【摘要】 论文以无线网络优化自动数据采集系统的研制为背景探讨了在实时操作系统Montavista Linux上构建自动、高速数据采集系统的设计思想和实现方法。实现无线网络自动数据采集系统的难点在于长时间高速采集的数据必须随时实时地存入磁盘中保存、并可按要求将海量数据传回控制中心,且整个系统必须满足小体积及抗恶劣环境的要求,因此该系统必定是一个嵌入式实时系统。 本文首先介绍嵌入式实时系统的概念,分析了嵌入式实时系统的发展历程、现状趋势,并提出采用PC/104系统作为采集系统的硬件平台,及采用DevRocket开发的嵌入式实时多任务操作系统作为采集系统的软件平台的设计思想。并对DevRocket构建嵌入式操作系统过程作出了详细的阐述。 本文还介绍了无线网络优化的传统方法,针对传统的无线网络优化移动数据采集器运行过程中缺乏远程控制和大量测量数据回传困难的问题,提出了一种基于嵌入式LINUX操作系统的移动数据采集器模式,结合GPRS网络可很好的解决远程控制和大量数据回传的问题,并进行了试验研究。 在本文的最后,探讨了移动测试平台需要的数据结构、软件架构和应用软件开发过程中主要的技术问题,并针对简化后的移动测试平台的实现作出了一个比较完整的表述。更多还原

【Abstract】 This paper is based on the design and implementation of a high speed data Auto acquisition system for wireless net optimize with PC/104 system and real-time operating system Montavista Linux. The difficulty of implementing such a system lies in that the data must be saved to disk as soon as possible while the data acquisition is in process, the magnanimity date must be transferred back to control center and the whole system have to be placed in a very small space. As a result, the data acquisition system must be an embedded real time system.Firstly, in this paper the concept of the embedded real-time system is introduced, secondly its developing processes, current circumstances and future perspectives are analyzed, finally, the design idea of adopting PC/104 system as the hardware platform and adopting DevRocke as the software developed platform is presented.For the difficulty of long distance control and measurement data transmission of traditional mobile data-collector, a new mobile data collector mode is presented based on the embedded Linux system combined with GPRS. The experimental results show that the new method for long distance control and data transmission is very effective.The data structure、 software and applicational program of mobile test plat are researched ,meanwhile the realization of the simplified mobile test plat is declared completely.更多还原