浪涌气象数据采集系统及其关键技术  

A surge meteorological data acquiring system and its key technologies

作　　者：伍光胜[1] 李建勇[1] 刘艳中[1] 雷卫延[1] 

机构地区：[1]广东省大气探测技术中心,广州510080

出　　处：《南京信息工程大学学报（自然科学版）》2013年第4期336-345,共10页Journal of Nanjing University of Information Science & Technology（Natural Science Edition）

基　　金：广东省科技计划项目(2010B060100055);广东省气象局科技项目(201021)

摘　　要：针对无人值守大规模自动气象站的数据采集特点和要求,基于无线通信网络,设计了一种浪涌气象数据采集系统,并对其关键技术进行了深入讨论.首先,分析了系统数据传输的协议结构及存在的问题,设计了基于UDP协议的可靠应用协议,并就其工作过程及可靠性传输进行了详细的讨论,解决了无线数据传输的不稳定性问题;然后,利用多线程技术和大规模通信事件响应处理技术,提出了实现数据接收线程池的方法,通过引入"数据分区管理"的概念,论述了数据并发处理缓冲区的设计,解决了大并发系统容易丢失数据、堵塞和低效率等问题;最后,通过对系统测试及其在业务中应用的分析,表明该系统实时、高效、可靠,能满足目前业务的需求,并对未来业务的发展具有同样的适应性.For characteristics and requirements of data acquiring in large-scale unattended automatic weather moni- toring, the design on acquiring system of surge meteorological data are given, and the key technologies are discussed in depth based on wireless communication network. By analyzing the structure of data transmission protocol and its disadvantages in the system, a reliable application protocol is designed based on UDP and its working principle and reliability are discussed in detail, and the instability of the wireless data transmission is solved. For real time receiv- ing and concurrent processing of surge meteorological data, by making use of multi-threading technology and large- scale communication events response technology, the data reception thread pool is constructed and realized. Through the introduction of data partition management concept, a concurrent processing data buffer is planned and excogita- ted, which can solve the problems such as data loss, data blocking and low efficiency in data processing. The system is tested and applied to real weather operation, and its performance shows that this system can acquire real time surge meteorological data efficiently and reliably. The system meets the current needs of the weather operation and is adaptable to the development of future weather operation.

关 键 词：无线通信 浪涌气象数据 可靠应用协议 线程池 数据缓冲区 并发处理 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]