Research on a Distributed Architecture of Mobile Gis Based on Wap
نویسنده
چکیده
Mobile Geographical Information System (Mobile GIS) is a Geographical Information System based on mobile computing and mobile Internet. It is not a conventional GIS modified to operate on a smaller computer, but an extension of Web GIS to mobile Internet including wireless Internet/Intranet and mobile communication network. But architectures of Web GIS are unsuitable for Mobile GIS, because of several bottlenecks such as the low-bandwidth of wireless network, the diversity of mobile devices, limited processing power and screen display limitation of mobile devices and the diversity of mobile system platform. So the research on the architecture of Mobile GIS is hot in the GIS field. WAP-based Mobile GIS can be described as mobile users can perform the almost same functionality as of Web GIS but in a mobile environment at any time, any place and without the limitation of operating system and wired link. In this paper, a distributed architecture for WAP-based Mobile GIS is proposed. Using Java Servlet Engine technology and spatial information Web caching mechanism at the fat server side, the architecture based on J2EE is composed of four logic tiers: presentation tier, WAP service tier, application tier and data service tier. A prototype system based on the architecture has been developed. It can successfully work on WAP phones, which proves that the architecture is feasible.
منابع مشابه
Research on Distributed Gis Based on Mobile Agent
With the emergence of more sophisticated distributed computing environment and wide spread acceptance and available of Internet and World Wide Web (WWW) technologies, a new generation of Geographic Information System (GIS) emphasizing on open architecture, distributed computing capability, mobility, interoperability, extensibility and intelligence has been receiving more attention over the past...
متن کاملProposing A Distributed Model For Intrusion Detection In Mobile Ad-Hoc Network Using Neural Fuzzy Interface
Security term in mobile ad hoc networks has several aspects because of the special specification of these networks. In this paper a distributed architecture was proposed in which each node performed intrusion detection based on its own and its neighbors’ data. Fuzzy-neural interface was used that is the composition of learning ability of neural network and fuzzy Ratiocination of fuzzy system as...
متن کاملProposing A Distributed Model For Intrusion Detection In Mobile Ad-Hoc Network Using Neural Fuzzy Interface
Security term in mobile ad hoc networks has several aspects because of the special specification of these networks. In this paper a distributed architecture was proposed in which each node performed intrusion detection based on its own and its neighbors’ data. Fuzzy-neural interface was used that is the composition of learning ability of neural network and fuzzy Ratiocination of fuzzy system as...
متن کاملA Mobile-agent and Gml Based Framework for Integrating Distributed Gis*
Geographic Information System (GIS) based on Internet as a promising research field brings new opportunities and challenges to geographic information accessing, sharing and disseminating. However, the inherent limitation of current Internet GIS architecture based on connection makes it incompetent to fulfil various requirements of GIS applications under dynamic, complicated and distributed comp...
متن کاملA Conceptual Mobile Gis System for Global Emission Monitoring
Today information systems play key role in new century, geographical information system (GIS) as a special class of information system. Now we are moving wired to wireless network, that is mobile environment shown in fig2 (any where any time and any thing computing), plays key role in this new century. In this application mobile GIS, which will be a network environment, is proposed, which can p...
متن کامل