Browsing by Author "Wijayaratna, A.J.M.K."

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    Local Data Synchronizing System among Multiple Users
    (Uva Wellassa University of Sri Lanka, 2010) Amarathunga, A.C.P.; Wijayaratna, A.J.M.K.
    In this modern globalized society document accessibility independent of location has become a widely felt necessity. Accessing documents can be done by personal computers, laptops and mobile devices. Also documents can be shared among multiple users. This system allows users to access their documents from any location without bringing the stored data in portable memory devices. The application server holds users' account information as well as documents. The PC application and mobile application runs in each devise synchronize document with this application server. So the application server contains latest version of the documents. When another device communicates with the application server, it provides/synchronizes the newest documents. When user does not have his own device, he can directly get newest documents from the application server. The application server mainly uses PHP scripting, client mobile application uses J2ME technology and client computer application uses MicrosoftTM .Net technology. Retrieving the same document in different devices may be different asmobile devices have limited memory, display screens and processing speeds. Keywords: Data synchronizing systems, Mobile applications, Share documents
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    Web Based GUI Administrative Tool for Efficient Configuration and Customization of Asterisk PBX
    (Uva Wellassa University of Sri Lanka, 2010) Wickramasinghe, W.A.V.M.G.; Wijayaratna, A.J.M.K.
    As the Internet bandwidth grows, Internet telephony that transports telephone calls over the Internet has become an emerging application. Nowadays, almost every organization is planning to move its telephone switch from traditional PBX (private branch exchange) to IP-based PBX (IP-PBX). When considering current IP-PBX solutions Asterisk is the world's most popular open source telephony project that turns an ordinary computer into a feature-rich voice communications server. Due to the fact that Asterisk needs no additional hardware for Voice over IP it is easy to build a low cost IP-PBX system using Asterisk. Configuring an Asterisk server is not an easy task for someone who is not expert in Asterisk commands. As it requires editing some text file directly on the console of the server, this task is not always easy for most of administrators without knowledge of Asterisk commands. Most of the time, a graphical interface would be more convenient. By default, Asterisk generates its call detail records in comma-separated text files. Analyses of activities in Asterisk sever using call detail records in those CSV files is an inefficient task. There are various attempts to write graphical user's or administrator's interfaces to Asterisk. These interfaces allow administrators to view, edit, and change various aspects of Asterisk via a web interface. This project focuses on the developing a web based Administrative tool for Asterisk PBX for easy configuration, administration and interactive statistical analyze for Asterisk Call Data Records using a unified web interface. Keywords: Asterisk, Asterisk GUI, IP-PBX, Asterisk CDR, Asterisk Call Data Records
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    Web Based Information System for Petroleum Filling Stations
    (Uva Wellassa University of Sri Lanka, 2010) Azoor, M.R.M.; Wijayaratna, A.J.M.K.
    In this fast moving world, people are traveling with tight schedules of estimated time. Fuel is a decisive factor in traveling. Vehicles need to reach a filling station for re-fuelling. When a vehicle reaches to a filling station, the filling station may have very long queues or the available fuel amount to fulfill the customer's needs may not be sufficient. At present the filling stations display information on the next filling station and distance to it. This project provides the facility to interconnect all petroleum filling stations all over the country through internet to exchange their information. In one petroleum filling station, the system can display information of all filling stations that are located along a user's route. So customers can choose the best petroleum filling stations that fulfill their needs. The fuel level reading unit reads the available fuel level and sends it to the information server through a connected computer. The web based system displays available fuel types, amounts, distance from current filling station and other details. The electronic device — "fuel level reading unit" has been built using ultra sonic sensors and web interface built using PHP scripting technology and MYSQL. To ensure maximum availability of the system MYSQL clustering was used for databases. Keywords: Filling station, Information system