集成WSN、载波通信和多种现场总线的网关设计

摘要

无线传感器网络和低压电力线载波通信在楼宇控制系统中正在逐步得到应用.为了实现这两种通信网与现有的多种现场总线网络之间的互联和集成,提出了一种基于ARM微处理器SEP4020的多功能网关设计思想.探讨了以太网、RS 232、RS 485、WSN、低压电力载波通信等多种通信接口的软硬件设计方法,实现了无线传感网、现场总线、以太网和低压电力载波通信等多种通信协议,成功地解决了现场总线网络和电力载波通信与无线传感器网络的互联问题.%Wireless sensor network (WSN) and low-voltage power line carrier communication are being gradually applied in edifice control system. To implement the interconnection and integration of the two communication networks with the existing multiple field bus networks, a design concept of the multi-functional gateway based on ARM microprocessor SEP4020 is proposed. The design methods of hardware and software for multiple kinds of interfaces, including Ethernet, RS 232, RS 485, WSN are explored. Multiple communication protocols for WSN, field bus and Ethernet are implemented. The interconnection of WSN and field bus networks is achieved successfully.