摘要
[Objective] This study was to construct VPDN-based 3G wireless meteorological information transmission system, in order to achieve the backup transmission of real-time meteorological services in all levels of meteorological stations. [Method] The current situations and business requirements of municipal meteorological networks are analyzed, putting forward the idea of backup routes that using VPDN-based 3G wireless meteorological information transmission system as the ground transmission line. And the network structure, operation mode and the system implementation are described in detail. [Result] VPDN-based 3G wireless meteorological information transmission system realizes the backup of ground line. Compared with the Modem dial-up, it is more stable and with faster transferring speed. With the rapid development of communication technology and computer technology, the information transmission system will be more efficient and stable, and will play a greater role in meteorological information transmission. [Conclusion] With the continuous development of modern meteorology, various types of meteorological data increase, presenting higher demand for the meteorological information transmission system. The established VPND-based 3G wireless meteorological information transmission system of this study provides a solution for backup transmission of real-time meteorological services.
[目的]建设基于VPND的3G无线气象信息传输系统,以实现各级气象台站实时气象业务的备份传输。[方法]分析了地市级气象网络现状及业务需求,提出了基于VPDN的3G无线气象信息传输系统作为地面专线备份线路的解决方案,并对其网络结构、运行方式及系统实现进行了详细介绍。[结果]基于VPDN的3G无线气象信息传输系统实现了地面专线备份,同时较Modem拨号方式稳定性更高,传输速度更快。随着通信技术和计算机技术的高速发展,该信息传输系统将更加高效和稳定,在气象信息传输中将发挥更大的作用。[结论]随着气象现代化的不断发展,各类气象探测资料种类进一步增多,对气象信息传输系统提出了更高的要求。该研究建立的基于VPND的3G无线气象信息传输系统为实时气象业务备份传输提供了解决方案。
