Publication: Diseño e implementación de una plataforma de monitorización con mulas de datos para una red de motas dispersas Sun SPOT
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2011
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2011
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Abstract
Las redes de sensores inalámbricos o WSN (Wireless Sensor Networks) tienen un gran potencial en el ámbito de la monitorización de entornos naturales, industriales o urbanos. Estas redes están formadas por una gran cantidad de pequeños sensores inalámbricos de gran autonomía energética y capaces de crear redes ad-hoc para comunicarse entre sí y con otras redes de datos. Pero hay entornos de monitorización en los que la distancia existente entre los sensores no permite la formación de redes ad-hoc multisalto. Una posible solución a este problema es el uso de un nodo móvil o ”mula de datos” que se desplace por el entorno y se descargue la información de estos sensores cuando estén próximos. Despuéss, la mula descarga toda la información en un nodo pasarela que comunica con otra red o directamente en un servidor que la almacenará para su posterior análisis. En este proyecto se implementa una plataforma software que permite a estos pequños dispositivos electrónicos (conocidos como ”motas”) de la tecnología Sun SPOT utilizar nodos mula. Para ello, en una primera parte, se analizan las características de este tipo de comunicación en las redes de sensores y se compara con otras posibles soluciones. También se describen la arquitectura interna y características de la tecnología Sun SPOT. Finalmente, en una segunda parte, se describe el diseño de la plataforma software creada, así como los aspectos más relevantes de la implementación de su prototipo. También se incluye un análisis comparativo de rendimiento entre la plataforma original de la tecnología Sun SPOT y el prototipo implementado para este proyecto. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Wireless Sensor Networks have a great potential in the monitoring of natural, industrial and urban environments. These networks consist in a great quantity of tiny wireless sensors with high autonomy who are also able to establish ad-hoc networks to allow communication between them and with other data networks. But there are monitoring environments in which the distance between sensors is very large and they can’t organize in multihop ad-hoc networks. In this case, the problem can be solved by using a mobile node called data mule. The data mule is moving among the environment and retrieving the information from the sensors when they are close. Then, the data mule sends all the data collected either to a gateway node or to a data server within the network for future analysis. In this project, we develop and implement a software platform which allow these tiny electronic devices (known as motes) of Sun SPOT technology to use data mule nodes. Therefore, firstly we analyze the features of this kind of communication in WSN and we compare it with other possible solutions. We also describe the architecture and the main features of the Sun SPOT technology. Then, we present our design of the software developed, as well as the main aspects of the prototype implementation. Finally we include validation data and a comparative analysis between the original architecture of the Sun SPOT technology and the prototype proposed in this project.
Wireless Sensor Networks have a great potential in the monitoring of natural, industrial and urban environments. These networks consist in a great quantity of tiny wireless sensors with high autonomy who are also able to establish ad-hoc networks to allow communication between them and with other data networks. But there are monitoring environments in which the distance between sensors is very large and they can’t organize in multihop ad-hoc networks. In this case, the problem can be solved by using a mobile node called data mule. The data mule is moving among the environment and retrieving the information from the sensors when they are close. Then, the data mule sends all the data collected either to a gateway node or to a data server within the network for future analysis. In this project, we develop and implement a software platform which allow these tiny electronic devices (known as motes) of Sun SPOT technology to use data mule nodes. Therefore, firstly we analyze the features of this kind of communication in WSN and we compare it with other possible solutions. We also describe the architecture and the main features of the Sun SPOT technology. Then, we present our design of the software developed, as well as the main aspects of the prototype implementation. Finally we include validation data and a comparative analysis between the original architecture of the Sun SPOT technology and the prototype proposed in this project.
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Redes de sensores inalámbricas, Mulas de datos, WSN, Data mules, Sun SPOT