基于GPRS的区域气象站组网技术

Network construction technology of regional weather stations based on GPRS

简要介绍了GPRS/CDMA无线传输系统的特点,对GPRS无线通讯系统的原理进行了分析。移动GPRS网络具有覆盖范围广泛,可支持的终端种类多,网络带宽已经完全能够满足气象数据采集系统的要求等优点。根据各地市气象部门局域网接入Internet网方式的不同,网络设备的不同,比较、分析了几种和GPRS网络搭建的方式及各种网络设备的配置。兰州市气象局在区域气象站升级时选用了GPRS通信方式,并采用代理服务器端口映射方式,实践证明通信稳定可靠,实时数据接收及时准确。对于各地市气象部门进行区域气象站组网有很好的借鉴和推广作用。

The feature d the GPRS/CDMA wireless transmission system is introduced briefly. The principle ot the GPRS wireless communication system is analyzed. According to the connection ways of the local area network of the various meteorological departments and the facilities several ways connected to the GPRS network and disposition of the network facilities are compared and analyzed. Lanzhou Bureau of Meteorology selects the GPRS communication and adopts the proxy server port mapping. The practice shows that the communication is reliable and stable and the real-time data reception is timely and accurate.