基于CAN总线的独立式家用报警网络系统设计

The Independent Familial Alarm Networks Design Based on CAN Bus

尝试使用 ＣＡＮ工业控制总线组建一个家用独立式报警网络．选用 Ｍｉｃｒｏｃｈｉｐ公司的 ＰＩＣ微控制器、ＣＡＮ总线控制器和市售的火灾报警器，制作有 ３个节点的报警网络．报警 信号可在各个节点间无冲突传输．不同的节点对接收的信号做相应的报警．该网络在无警 险状态下处于休眠，以节省功耗．本网络的设计也为智能化住宅安全防范系统的用户端提 供了可行的解决方案．通过在虚拟住宅环境下的测试，系统稳定性强，实时性好，报警准确．

This article show a kind of familial siren system based on CAN bus. To choice PlC MCU and CAN controller produced by Microchip Technology Inc. and fire alarm equipment build a siren network with three nodes. The alarm signals are spreaded smoothly among all nodes. Each node can analysis accepted signals and do action independently. When no signals are spreaded, the system is in the SLEEP mode in order to save power. This system provides a kind of resolution for safe system in intellectualized house and apartment. By testing, this system can work well under real environment.