基于CAN总线的宿舍楼集中供暖控制系统设计

摘要

The network construction of a dormitory central heating control system based on a CAN bus was presented. The particular requirements and characteristics of the dormitory central heating system are analyzed. A two - stage network topology realized by repeaters which have a filtering function is proposed, and all the nodes in groups are addressed. Therefore, unicast and broadcast can be realized. The information format of the system is defined at last. The network will satisfy the needs of thousands of communication nodes, and can be applied into a student (or staff) dormitory central heating control system.%给出了一种基于CAN总线的集中供暖控制系统网络组建方案,分析了宿舍楼集中供暖系统的要求和特点,提出了采用具有滤波功能的中继器实现CAN总线的二级树型网络拓扑结构,并对各个节点分组编址,以此实现系统的单播和组播,最后规定了系统通信的信息格式.该网络能够满足上千个节点的通信需要,适合应用于学生或者职工宿舍楼等具有数量众多房间的集中供暖系统.