[1]周建群,李千目. 面向泵站远程监控的Push技术设计[J].计算机技术与发展,2015,25(09):164-168.
　ZHOU Jian-qun,LI Qian-mu. Design of Push Technology for Remote Monitoring of Pumping Station[J].,2015,25(09):164-168.
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 面向泵站远程监控的Push技术设计()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年09期
页码:
164-168
栏目:
应用开发研究
出版日期:
2015-09-10

文章信息/Info

Title:
 Design of Push Technology for Remote Monitoring of Pumping Station
文章编号:
1673-629X（2015)09-0164-05
作者:
 周建群; 李千目
 南京理工大学 计算机科学与工程学院
Author(s):
 ZHOU Jian-qun; LI Qian-mu
关键词:
 ; 泵站远程监控; Ajax轮询; WebSocket ; 服务器推送
Keywords:
 ; remote monitoring of pumping station; Ajax polling; WebSocket; server push
分类号:
TP39
文献标志码:
A
摘要:
 B/S架构可以直观地展示泵站内设备运行状态的相关数据,大大提高了系统管理水平和运行人员的工作效率。数据实时推送成为了泵站远程监控的一项重要技术。通过对现有的实时Web应用技术进行研究,发现Ajax轮询会造成系统消息延迟,大量使用会增加服务器和客户端间的通信开销。基于长连接的Comet技术可以实现服务器push,但是单台服务器只能维护少量长连接请求,不容易扩展。针对这种情况,提出了一种基于WebSocket协议的实时Web应用技术方案,并将其应用于泵站远程监控系统中。实验结果表明,该方案能够有效降低通信开销,提升服务器性能。
Abstract:
 The B/S architecture can intuitively display related data of the running state of the equipment in pumping station,which not on-ly improves the quality of system management,but also rise the efficiency of personnel working. Real-time data publication has become a key technology in the remote monitoring of pumping station. The study on the existing technology of real-time Web applications found that Ajax polling could cause the system message delay,and could increase the overhead of communicating between the server and the cli-ent by heavy use. Comet based on long connection can solve server push,but a single server can only maintain a few long connection re-quest,and it’ s not easy to extend. In view of this,propose a real-time Web application technology scheme based on the WebSocket pro-tocol,which has been used to the remote monitoring of pumping station. Experimental results show that this scheme can effectively reduce the overhead of communicating between the server and the client,and increase the system performance.

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更新日期/Last Update: 2015-10-16