摘要楼宇自动化控制系统是采纳现代化的传感技术、计算机通信技术对建筑物内所有机电设施进行信号采集、控制，提供有效安全的物业管理，使其设备应用在最良好的状态。本次设计是基于一套 CAN 总线的远程控制装置，通过 CAN总线完成对现场设备的控制操作，并与 CAN 总线上其他设备完成数据的传输。系统硬件部分主要由 AT89S52 单片机、SJA1000 CAN 控制器等组成，系统在硬件和软件上进行模块化设计，具体实现了以单片机为控制核心，设计了 4 路数字量输入，4 路模拟量输出模块，以及 CAN 接口电路模块。CAN 总线的应用，提高了楼宇智能化水平并降低了设备的管理成本。CAN 总线提供了标准网络协议的数据链路层，没有相应的高层通信协议。CANopen 协议是一种基于 CAN 现场总线的开放的、标准化的高层协议。它是一种具有实时性的高速串行总线系统，它被广泛应用在嵌入式系统中。CANopen 协议允许不同设备以标准化方式进行通信，使其具有互操性。关键词：楼宇控制；CAN 总线；控制节点；CANopen 协议AbstractBuilding automation control system consists of modern sensor technology, computer communication technology on buildings of all electrical and mechanical facilities for signal acquisition, control and provide effective security for property management, to equipment used in the best condition. The design is based on a CAN bus, the remote control device, through the CAN bus for control operation of field devices and other devices with the CAN bus for data transmission. Hardware of the system mainly by AT89S52 singlechip, SJA1000 CAN controller and other components, system hardware and modular software design based on single chip for the realization of the control core, designed 4 digital inputs, 4 analog output module, and the CAN interface circuit module. CAN bus applications, improve the level of intelligent building and reduce management costs of the equipment. CAN bus provides a standard network protocol for data link layer, there is no corresponding high-level communication...
