【作者】 靳聚芳； 王保强；

【Author】 Jin Jufang Wang Baoqiang (Chengdu University of Information Technology Chengdu 610225 China)

【机构】 成都信息工程学院电子工程系；

【摘要】 为改变目前国内自动气象数据采集器多数利用国外产品现状,提出了一种基于嵌入式处理器ARM9及CAN总线技术的多通道气象数据采集系统设计方法。通过软、硬件技术的结合,实现了模拟信号、数字信号及智能传感器数据采集。为提高系统的实时响应性能和多任务处理能力,在硬件上采用"主采集器+外部总线(CAN总线)+若干分采集器+传感器+外围设备"的结构设计,同时移植Linux操作系统作为软件平台,使系统的可靠性和扩展性得以提高。通过在嵌入式处理器中移植Linux操作系统,在Linux环境利用Internet网络来传送气象数据,既省去了复杂的布线工程,又能够实现脱离PC机进行数据传输,有利于大规模气象监测网络体系的建立。更多还原

【Abstract】 For changing the current situation that the domestic automatic meteorological data acquisition system is almost based the use of foreign products,a design method of multi-channel meteorological data acquisition system is given which based on ARM and CAN Bus.It fulfills the acquisition requirements of the analog signals,digital signals and intelligent sensor data through a combination of hardware and software technology.In order to improve system’s real-time responsible capability and multi-task processing capability, the "main collector + external bus + sub-collector + sensors + peripheral equipment" structure is used in hardware design.At the same time,Linux operating system is transplanted into the embedded processor system for improving the reliability and scalability of the system.With Linux operating system,the meteorological data can be transferred with the Internet.Then,the complicated cabling project and PC could be omitted in data exchanging.The methods above are in favor of constituting Large-scale meteorological monitoring network.更多还原