Real-time SMS warning visualization system based on HTML5

Pao Yue-kong Library Electronic Theses Database

Real-time SMS warning visualization system based on HTML5

 

Author: Jiang, Haocheng
Title: Real-time SMS warning visualization system based on HTML5
Degree: M.Sc.
Year: 2011
Subject: Personal communication service systems
Visual communication
HTML (Document markup language)
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Land Surveying and Geo-Informatics
Pages: viii, 62 leaves : ill., maps ; 30 cm.
InnoPac Record: http://library.polyu.edu.hk/record=b2445303
URI: http://theses.lib.polyu.edu.hk/handle/200/6136
Abstract: The combination of GIS and Internet was considered to serve emergency responding, but the B/S based architecture brought limitations of plug-ins installation and considerable latency. In this study, a prototype of real-time visualization system based on HTML5 is proposed to introduce great features including canvas for rendering vector mapping data, WebSockets instead of AJAX for full-duplex data communication, Web Worker for computing in parallel of main thread, Web Storage for maintaining dataset in browser. Citizens are encouraged to submit emergent report by means of SMS, and the socket server broadcasts spatial and non-spatial information to terminals where puts emergency event on the right spot overlaid the base map. It significantly increases the efficiency and effectiveness of emergency responding.

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