Marrero-Ramos, José L.

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    Wireless sensor mesh networks for real time liquid level monitoring system
    (2012-05) Marrero-Ramos, José L.; Jia, Yi; College of Engineering; Quintero, Pedro; Valentín, Ricky; Department of Mechanical Engineering; Colón, Omar
    Sensor networks are an indispensable requirement for a multiple applications, from the home appliances to the most ground breaking technology. They are now used in many industrial and civilian application areas, including industrial process monitoring and control, machine health monitoring, environment and habitat monitoring, healthcare applications, home automation, and traffic control. This thesis presents a wireless sensor mesh network and the application in liquid level sensing. The sensor network consist of a suite of nodes for data sensing, a coordinator node to establish a network and receive data, and a central server to process the data and host it to internet. Two different prototypes were built. In the first prototype central server was based on a personal computer with a seamless XBee RF module configured to operate with ZigBee mesh network standard. The second prototype was based on Arduino open source microcontroller with a Wi-Fi Arduino microcontroller shield and a seamless XBee RF module configured to operate with ZigBee mesh network standard. Test runs demonstrated the capabilities of both prototypes to measure liquid level of multiple tanks, and host data online through a web host Pachube. Our work demonstrated the feasibility of real time liquid level monitoring for wireless mesh networks.