生物质电厂上料控制系统中CAN总线智能节点的设计  

Design of CAN Bus Intelligence Node in Feeding Control System of Biomass Power Plant

作　　者：蒋明华[1] 蒋亚[1] 于虹[1] 

机构地区：[1]扬州大学机械工程学院,江苏扬州225127

出　　处：《机械工程与自动化》2014年第6期166-167,170,共3页Mechanical Engineering & Automation

摘　　要：搭建了生物质电厂上料系统的CAN总线控制网络,并对其CAN总线智能节点进行了硬件和软件设计。该CAN总线智能节点采用SJA1000为总线控制器,配合微处理器AT89S52和CAN总线驱动器PCA82C250实现智能节点的控制功能及数字量输入、输出和串行通讯功能。在进行电路设计时充分考虑了电磁干扰对系统的影响,采用高速光耦作为中间连接,从硬件上加强了系统的抗干扰能力,增强了系统的可靠性和稳定性。In this paper ,a CAN bus control system in feeding system of biomass power plant was set up ,and the hardware and soft-ware of the CAN bus intelligence node system was designed .This kind of intelligence node ,which could achieve digital volume in-put ,digital volume output and serial communication ,used SJA1000 as a bus controller ,with AT89S52 as a microprocessor and PCA82C250 as a CAN bus driver .In view of electro magnetic interference ,a super-speed opticalcoupler was taken as middle-connec-tion ,which could improve the ability of anti-interference and make the control system reliable and stable .

关 键 词：CAN总线 智能节点 设计 上料控制系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]