农事信息采集系统的研究与设计

Design of the system of collecting farming informations

为达到方便、可靠记录农事信息的目的,开发了由手持终端和上位机数据库组成的农事信息采集系统。手持终端由以单片机为主控制器的硬件电路组成,它软件设计上实现了多层菜单复杂操作功能和上下位机通讯功能;软件总体结构采用消息驱动的前/后台结构,程序主体在中断的驱动下运行。保存在手持终端中的农事信息可通过RS232上传到上位机数据库。

For tracing records of farming informations expediently and credibly , we design the system of collecting farming informations ,which consists of the handset and the computer database.A piece of singlechip is the main controller of the hardware of the handset ,its software functions include muhilayer menu manipulation and the function of communicating with the main computer each other;The software structure of the handset is based on the message-driven forgroud/background mechanism,and the main body of the program is driven by interruptions.The datas saved in the handset can transfer to the computer database by RS232.