粮食熏蒸控制系统智能通信适配器的研究

Research of intellectual communication adapter in grain fumigation controlling system

阐述了粮食熏蒸控制系统通信适配器的硬件、软件设计,该系统采用CAN总线结构,系统主要部分通信适配器。是上位管理机和现场测控节点之间通信接口．该适配器以8031单片机为处理器,以SJA1000为CAN总线控制器,软件采用模块化结构设计,由主程序、子程序、中断服务程序组成,完成数据缓冲、数据转发等功能．

This paper describes the hardware and software design of the intellectual communication adapter in the grain fumigation controlling system, the system adopts CAN bus structure. As the main part of the system, the communication adapter works as the interface between the administrating computer and the testing site node. The adapter takes 8031 as the processor, and SJA1000 as CAN bus controller, The software has been modularized, It mainly comprises of the main program, the subprogram and the interrupt service routine program, implements the data buffer and data transmission functions.