Browsing by Author "Seid, Salahadin"

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    Dam Safety Monitoring Using Wireless Sensor Networks
    (Addis Ababa University, 2013-02) Seid, Salahadin; Libsie, Mulugeta (PhD)
    The rapid advances in processor, memory, and radio technology have enabled the development of distributed networks of sensor nodes capable of sensing and communicating using wireless media. This enables to develop novel applications that change the way we interact with the world around us. In this thesis, we aim to develop a wireless sensor network application for dam safety monitoring application where the sensor network encompasses heterogeneous types of sensors distributed in different portion of a dam to gather data about the integrity of the dam. The sensor nodes are organized in multi-hop cluster based tree to sample the different physical parameters of the dam and route the reading to a central place for data management and visualization purpose. We have implemented a dam safety monitoring application and its application specific routing protocol on top of TinyOS operating system using nesC programming. We have also implemented data management and visualization methods to present the data to the user in a user-friendly manner and providing exact detail. For such purpose the following tools are developed: LiveWatch which is a Java application for data logging, a web application to visualize the information on the web, and SMS module for alarm notification. The application allows real-time collection and processing of sensor data and presenting to the user through an appropriate interface. We have evaluated the performance of our application through simulation using TOSSIM simulator on MicaZ sensor nodes. Finally, we present some numerical results that demonstrate the feasibility of our application and routing protocol. The experiment showed encouraging results. Keywords: Wireless Sensor Networks, Dam Safety Monitoring, Sensors, Distributed System, Routing Protocol, Simulation
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    Dam Safety Monitoring Using Wireless Sensor Networks
    (Addis Ababa University, 2013-02) Seid, Salahadin; Libsie, Mulugeta (PhD)
    The rapid advances in processor, memory, and radio technology have enabled the development of distributed networks of sensor nodes capable of sensing and communicating using wireless media. This enables to develop novel applications that change the way we interact with the world around us. In this thesis, we aim to develop a wireless sensor network application for dam safety monitoring application where the sensor network encompasses heterogeneous types of sensors distributed in different portion of a dam to gather data about the integrity of the dam. The sensor nodes are organized in multi-hop cluster based tree to sample the different physical parameters of the dam and route the reading to a central place for data management and visualization purpose. We have implemented a dam safety monitoring application and its application specific routing protocol on top of TinyOS operating system using nesC programming. We have also implemented data management and visualization methods to present the data to the user in a user-friendly manner and providing exact detail. For such purpose the following tools are developed: LiveWatch which is a Java application for data logging, a web application to visualize the information on the web, and SMS module for alarm notification. The application allows real-time collection and processing of sensor data and presenting to the user through an appropriate interface. We have evaluated the performance of our application through simulation using TOSSIM simulator on MicaZ sensor nodes. Finally, we present some numerical results that demonstrate the feasibility of our application and routing protocol. The experiment showed encouraging results. Keywords: Wireless Sensor Networks, Dam Safety Monitoring, Sensors, Distributed System, Routing Protocol, Simulation