摘要
为了提高工业控制中信息传输的稳定性,增强可靠性。提出了基于单片机的CAN总线数据采集节点的设计。CAN总线在工业中有着广泛的应用,性能良好,结构简单。每个通信节点都使用STC89C51单片机作为微控制器,SJA1000作为独立CAN控制器,PCA82C250作为CAN驱动器。从硬件设计和软件设计两方面进行了分析。硬件上三个节点设计,其中两个分别采集温度和红外遥控信号,一个作为上位机节点,来显示上几个节点发来的数据,软件上编写逻辑程序。结果表明,几个节点之间具有通信可靠,抗干扰强的特点。采用基于单片机的CAN总线通信的在工业控制中通信稳定,可靠性高。
In order to improve the stability of information transmission in industrial control and enhance reliability,the design of data acquisition node of CAN bus based on single chip microcomputer is presented. Each communication node use STC89 C51 microcontroller as microcontroller,SJA1000 as independent CAN controller and PCA82 C250 as CAN driver. The hardware design and software design are analyzed. The hardware is designed with three nodes,two of which collect the temperature and infrared remote control signals respectively,and one as the upper computer node to display the data sent from several nodes,and the software is programmed with logic program. The results show that the communication between the nodes is reliable and the interference resistance is strong. CAN bus communication based on single chip microcomputer is stable and reliable in industrial control.
作者
杨另
王霄
YANG Ling;WANG Xiao(Department of Electrical Engineering,Guizhou University,Guiyang 550025,China)
出处
《智能计算机与应用》
2019年第6期197-200,205,共5页
Intelligent Computer and Applications
关键词
数据采集
CAN总线
单片机
节点设计
data collection
CAN bus
single chip microcomputer
node design
