智能化育苗盘架通信网络结构与通信协议设计  

Design of Communication Network Structure and Communication Protocol for Intelligent Seedling Tray

作　　者：向绪友[1] 周超[1] 贺艺[1] 李亮[1] 杨雨辰 XIANG Xu-you;ZHOU Chao;HE Yi;LI Liang;YANG Yu-chen(Hunan Institute of Agricultural Information and Engineering,Changsha 410125,PRC)

机构地区：[1]湖南省农业信息与工程研究所,湖南长沙410125

出　　处：《湖南农业科学》2021年第9期80-85,共6页Hunan Agricultural Sciences

基　　金：湖南省农业科技创新资金项目(2020CX17)。

摘　　要：围绕育苗盘架智能控制系统在可靠性、自主控制和容错控制等方面对通信网络的实际需求,设计了育苗盘架通信网络(TCN)的网络结构、入网设备基础组件以及应用层通信协议(NCAP),提出了节点共享变量、时间同步和消息事务等概念。在此基础上,实现了CAN节点间无连接的数据交换模式,有效地简化了通信控制过程,对开发专用型通信应用具有一定的参考价值。Focusing on the actual requirements of seedling tray intelligent control system for communication network in terms of reliability,autonomous control and fault-tolerant control,the network structure of seedling tray communication network(TCN),basic components of network access equipment and application layer communication protocol(NCAP)are designed.The concepts of node shared variable,time synchronization and message transaction are proposed.On this basis,the connectionless data exchange mode between CAN nodes is realized,which effectively simplifies the communication control process,and has a certain reference value for the development of special communication applications.

关 键 词：工厂化育苗 盘架 现场总线 节点共享变量 时间同步 消息事务 

分 类 号：S126[农业科学—农业基础科学] TP393.1[自动化与计算机技术—计算机应用技术]