基于CAN总线的分布式安全报警系统

CAN总线是一种多主站局部网络 ,支持分布式控制系统或实时控制系统的通信功能 ,具有检错功能强 ,抗干扰 ,传输速率高等优点 ,广泛应用于工业控制领域。笔者以CAN总线技术为基础 ,用单片机和个人计算机组成分布式安全报警系统 ,该系统具有开放性、全分散体系结构、安装维护简单等特点。笔者介绍了该系统的总体构成及其软件和硬件设计。试验结果表明 ,该系统实现了事故现场、住户与住宅小区三者联系的安全报警功能。系统稳定性好 ,实时性强 ,报警准确。

Distributive Security and Alarm System Based on CAN Bus

CAN bus is an area network which has many home sites and supports the function of communication in distributive control system or real time control system. It has many merits such as better error detection, anti-interference and high-speed transmission. So it is applied widely in control industry. The distributive security and alarm system were designed with single chips and personal computers based on CAN bus technology. The system holds open character, all-separate structure and easy-to-maintain. The design of total structure, the hardware and software in this system are introduced. The results state that locates, residents and residential district were linked successfully. The system has high stability, good real-time ability and exact alarming.