摘要： 嵌入式操作系统的扩展技术很好地解决了嵌入式应用可移植性问题，首先介绍了嵌入式操作系统的扩展建模流程，其中需求分析是其重要环节，同时阐述了扩展层的体系结构采用的方法。分析了内核扩展、C/S扩展、OOP和“虚拟机＋配置＋描述”4种系统扩展方式，并对其优缺点进行了说明。

关键词: 嵌入式操作系统, 系统扩展, 虚拟机, 可移植性

Abstract: Industrial specific extension technology of embedded operating system can improve embedded application portability. At first, the paper interprets the model-building flow of industrial specific embedded operating system extension and the requirement analysis is a key part. The layer extension architectures are introduced in detail. At last, the kernel extension,C/S extension,OOP extension and VM+configuration+profile extension methods are analyzed and the features is depicted.

中图分类号: 

• TP316