基于嵌入式系统的气象要素采集技术研究  

Study of Meteorological Elements Acquisition Technology Based on Embedded System

作　　者：杜伟略[1] 

机构地区：[1]无锡职业技术学院江苏省教育厅传感网工程技术研究中心,江苏无锡214121

出　　处：《计算机测量与控制》2013年第6期1571-1573,1583,共4页Computer Measurement &Control

基　　金：2012年江苏省高校科研成果产业化(JHZD2012-27)

摘　　要：详细介绍了基于S3C2440微处理器的嵌入式Linux系统运用到气象要素采集器的实现过程,简要叙述了气象采集器的系统结构、传感器的选用,着重分析了采用Pt100高精度测温的接口电路以及计算公式;描述了气象要素采集器S3C2440与传感器的硬件接口电路连接,详细阐述了嵌入式内核的移植、驱动程序编写方法,还给出了采集器基于Qt/Embedded实现3G网络通信的关键程序;最后,经验证说明了:基于嵌入式系统气象要素采集器性能稳定,数据正确,该系统测量温度误差不超过±0.3℃。This paper introduces the S3C2440 microprocessor based on embedded System with Linux to meteorological elements acquisition process, the author illustrates the system structure, the selection of sensor unit, focusing on the analysis of the high accuracy measuring temperature using Ptl00 interface circuit and calculation formula Describes the meteorological elements S3C2440 collector and sensor hard- ware interface circuit is connected, and expounds the kernel of transplantation, Embedded driver programming method, it gives collector based on Qt/Embedded realize 3 G network communication of key program. Finally, experience that the card., based on embedded system meteorological elements terminal stable performance, data correct, The system measuring temperature error is no more than -k0. 3℃.

关 键 词：气象要素 PT100 内核 3G通信 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]