观察者模式在地震预警系统中的应用  

Application of Observer Pattern in Earthquake Early Warning System

作　　者：周跃勇[1] 李水龙 于伟恒 周施文 ZHOU Yueyong;LI Shuilong;YU Weiheng;ZHOU Shiwen(Fujian Earthquake Agency,Fuzhou 350003,China)

机构地区：[1]福建省地震局,福建福州350003

出　　处：《现代信息科技》2021年第15期128-130,共3页Modern Information Technology

基　　金：国家重点研发计划(2018YFC1504005)。

摘　　要：观察者模式定义对象间一对多的依赖关系,通过松耦合设计使对象间的依赖最小化。从地震预警系统研发的角度来看,波形数据的实时接收与高效处理是一个关键难点。通过应用观察者模式,实现了波形接收与数据处理的功能解耦,允许系统动态灵活地加入新的波形数据,提升了系统的可扩展性,使得系统具备较好的演化能力,能够较好地适应新的业务需求。The observer pattern defines one-to-many dependencies among objects,and minimizes the dependencies among objects through loose coupling design.From the perspective of the research and development of earthquake early warning system,the real-time receiving and efficient processing of waveform data is a key difficulty.Through the application of observer pattern,the function decoupling of waveform receiving and data processing is realized,which allows the system to dynamically and flexibly add new waveform data,improves the scalability of the system,and makes the system have better evolution ability,and can better adapt to new business requirements.

关 键 词：地震预警 观察者模式 发布-订阅模式 功能解耦 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] P315[自动化与计算机技术—计算机科学与技术]