基于CAN总线的自动气象站系统设计与实现

主要介绍了自动气象站的设计思路和关键单元电路。利用高分辨的模数转换芯片实现高精度的数据采集，基于CAN总线结构的设计使系统具有积木式结构，功能模块智能化；软件设计支持系统功能模块任意组合。变更时不需对原有软硬件进行任何改动。给出了部分程序源代码，提示在设计中要注意的技术问题；实际应用表明，系统运行稳定、可靠、准确，符合气象观测仪器的设计标准，2003年获得中国气象局颁发的气象技术装备使用许可证，目前已经大量推广应用。

Design and Realization of Automatic Weather Station System Based on CAN Main Line

The automatit weather station design mentality and the essential unit electric circuit are introduced using the high resolution the A/D conversion chip realization high accuracy data acquisition, enable the system based on the CAN main line structure design to have the building block system structure, the function module intellectualization. The software design support program function module combines willfully, when change does not have to carry on any modification to the original software and hardware. Has produced the subprogram source code. Prompt technical question, which must pay attention in the design. The practical application indicated that, the system movement stable, reliable, is accurate, conforms to the meteorological observation instrument design standard, in 2003 obtains the meteorology technical equip use permit which the Chinese meteorological bureau issues, at present already massively promoted the application.