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嵌入式网络主要用于实时数据传送和控制；最适合组成分布式数据采集与控制系统。文章对嵌入式网络ＥＬＡＮ作了较详细的介绍。ＥＬＡＮ网的应用层的服务与用户的应用选择有着密切的关系，所以对此作了着重的介绍。同时，对ＥＬＡＮ网应用于某一电厂工况监测的分布式数据采集系统中的实例进行了相应的分析。
Embedded network is mainly used for real-time data transmission and control; the most suitable composition of distributed data acquisition and control system. The article introduces embedded network ELAN in more detail. ELAN network application layer services and user applications have a close relationship, so I made a focused introduction. At the same time, a case study of ELAN network in a distributed data acquisition system for condition monitoring in a power plant is analyzed.