目录摘 要..........................................................................................................................................................2Abstract......................................................................................................................................................3第 1 章 绪论...............................................................................................................................................41.1 课题背景......................................................................................................................................41.2 智能温室系统进展现状..............................................................................................................51.3 课题讨论内容以及技术指标......................................................................................................6第 2 章 智能温室系统总体方案的设计...................................................................................................82.1 系统描述......................................................................................................................................82.2 总体方案选择..............................................................................................................................8第 3 章 上位测控系统与现场测控系统通信设计.................................................................................123.1 串行通信....................................................................................................................................12 3.2 RS-232总线标准·························123.3 硬件连接电路以及通信协议....................................................................................................14 3.4 Visual Basic6.0中的串行通信控件MSComm·························163.4.1 MSComm 控件处理通信的方式...............................................................
