Web-service based Mobile Geospatial Application Development using Python

Oct 10, 2011Download as ppt, pdf

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As the development of mobile technology keeps marching forward, a noticeable trend of integrating location- and orientation-aware sensors (i.e., GPS receiver, digital compass, and accelerometer) into today’s smartphones has significantly promoted the development of mobile Location Based Services (LBS). At the same time, geospatial information is increasingly recognized as the common denominator in both today’s “Web 2.0” peer-to-peer social network era and tomorrow’s “Web 4.0”. As a result, embracing the growing rich spatial resources and adopting them for the mobile geospatial application development is essential. However, considering the large amount spatial data for processing and the physical limitation of today’s mobile devices in relation to battery power, CPU speed and data storage etc., it is nearly impossible to accomplish all computation intensive tasks efficiently on the device itself. Therefore, client-server architecture is usually a preferred option where the mobile devices act as clients sending requests and receiving responses whilst the calculation modules are wrapped and delivered in the form of web services. In this case, on the server side, the geospatial applications can take advantages of the capability of a variety of spatial databases back-ends, including spatial indexing, searching and retrieving. There are now a variety of Python modules, libraries and open sources etc. available for fast constructing and deploying web services for mobile geospatial applications. This talk attempts to give an introduction on using Python for building RESTful web-services for mobile geospatial application development, including back-end spatial database access and spatial information retrieval.

Strat egic Research in A dvanced G eotechnologies Junjun Yin, DMC - DIT

www.StratAG.ie Junjun Yin Digital Media Centre Dublin Institute of Technology Web-service based Mobile Geospatial Application Development using Python

Location- and orientation aware Smart Phones

GeoSpatial Information Retrieval for Mobile Devices Mobile Location Based Service (LBS) User’s current location (latitude/longitude) User’s facing direction (azimuth) Geospatial Queries in relation to user’s current locatio Proximity query (Nearest-Neighbours) All the cafés around All the point-of-interests around … Information over load problem

GeoWands via Mobile Spatial Interaction Mobile Spatial Interaction Spatial databases Spatial data storage Spatial index for rapid data access Spatial operators Topological operations Intersection, contain, touch, etc. Human Interaction Gesture Visibility (field of view)

Figure. The overall diagram for the system

Python for Web Service and Spatial Database Python for Web Service SOAP Restful style URL based Http request XML/JSON (GeoJSON) output Turbo Gears/ Django

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Today mobile is very useful thing. It is a need of everybody. In every Era â€œLocationâ€ is a strong component of â€œMobilityâ€ Location based services LBS are services offered using mobile phone by taking mobile's geographical location. The proposed system is providing location based services and offers with respect to user interest. Vendors are allowed to post and edit an advertisement for users. The system contains various modules such as advertising , Tourist place, Parking place etc. It also provides user's feedback, ranking based suggestion in secured manner. The purpose of this system is to notify the user based on their preferences and their interest in the particular area and notify them using android application. This will lead to lower advertising costs and expenditures also save the time of user for finding the located area of ads with help of GPS. Sagar B. Gite | Harshada A. Gavali | Ajinkya S. Dhongade | Jyotsna G. Gavatade ""Implementation of Recommendation on Location Based Services"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23900.pdf Paper URL: https://www.ijtsrd.com/engineering/computer-engineering/23900/implementation-of-recommendation-on-location-based-services/sagar-b-gite

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