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Paper presented before the Second Pan American Scientific Congress, Washington, U.S.A., December 27, 1915-Janunary 8, 1916.

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Made available in DSpace on 2014-12-17T14:55:51Z (GMT). No. of bitstreams: 1 MarcioEUA_DISSERT.pdf: 7811126 bytes, checksum: a8663444eeaf1a908fcd7146c171a40a (MD5) Previous issue date: 2011-09-02 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Fuzzy intelligent systems are present in a variety of equipment ranging from household appliances to Fuzzy intelligent systems are present in a variety of equipment ranging from household appliances to small devices such as digital cameras and cell phones being used primarily for dealing with the uncertainties in the modeling of real systems. However, commercial implementations of Fuzzy systems are not general purpose and do not have portability to different hardware platforms. Thinking about these issues this work presents the implementation of an open source development environment that consists of a desktop system capable of generate Graphically a general purpose Fuzzy controller and export these parameters for an embedded system with a Fuzzy controller written in Java Platform Micro Edition To (J2ME), whose modular design makes it portable to any mobile device that supports J2ME. Thus, the proposed development platform is capable of generating all the parameters of a Fuzzy controller and export it in XML file, and the code responsible for the control logic that is embedded in the mobile device is able to read this file and start the controller. All the parameters of a Fuzzy controller are configurable using the desktop system, since the membership functions and rule base, even the universe of discourse of the linguistic terms of output variables. This system generates Fuzzy controllers for the interpolation model of Takagi-Sugeno. As the validation process and testing of the proposed solution the Fuzzy controller was embedded on the mobile device Sun SPOT ? and used to control a plant-level Quanser?, and to compare the Fuzzy controller generated by the system with other types of controllers was implemented and embedded in sun spot a PID controller to control the same level plant of Quanser? / Sistemas inteligentes Fuzzy est?o presentes nos mais variados equipamentos, desde eletrodom?sticos e m?quinas industriais at? dispositivos de pequeno porte, como m?quinas digitais e aparelhos celulares, sendo utilizados principalmente por lidar com as incertezas inerentes a modelagem dos sistemas reais. No entanto, as implementa??es comerciais de sistemas Fuzzy n?o s?o de prop?sito geral e n?o apresentam portabilidade para diferentes plataformas de hardware. Sobre essas quest?es, este trabalho apresenta a implementa??o de um ambiente de desenvolvimento open source composto de um sistema desktop capaz de gerar graficamente um controlador Fuzzy de prop?sito geral e exportar estes par?metros para um sistema embarcado com um controlador Fuzzy escrito em Java To Plataform Micro Edition (J2ME), cuja concep??o modular o torna port?vel para qualquer dispositivo m?vel que suporte J2ME. Desta forma, a plataforma de desenvolvimento proposta ? capaz de gerar todos os par?metros de um controlador Fuzzy e export?-lo em arquivo XML. O c?digo respons?vel pela l?gica de controle que se encontra embarcado no dispositivo m?vel ? capaz de ler o arquivo e iniciar o controlador. Todos os par?metros de um controlador Fuzzy s?o configur?veis atrav?s do sistema desktop, desde as fun??es de pertin?ncia e base de regras at? o universo de discurso dos termos lingu?sticos das vari?veis de sa?da. O sistema proposto gera controladores Fuzzy para o modelo de interpola??o do tipo Takagi-Sugeno. Como processo de valida??o e testes da solu??o proposta, o controlador Fuzzy foi embarcado no dispositivo m?vel Sun SPOT? e usado para controle de uma planta de n?vel da Quanser?, e para compara??o do controlador Fuzzy gerado pelo sistema com outros tipos de controladores foi implementado e embarcado no Sun SPOT um controlador PID para a mesma planta de n?vel.

Master of Science / Department of Computing and Information Sciences / Gurdip Singh / The Patient Monitoring System is a wireless sensor network application used for dynamically tracking a patient’s physical activity using 3D Accelerometer Sensors in the Sun Small Programmable Object Technology (SPOT) platform. The system is able to detect different postures of a person and recognize high-level actions performed by a patient by monitoring different pattern of postures. This activity can be monitored remotely from a nurse station or a handheld device. The monitoring system can be used for alerting the nurse station in a hospital, if a patient performs some abnormal action. In the proposed system, the Sun SPOTs are affixed on a person's chest, thigh, leg and arm. The application determines the posture of a person by sensing the acceleration and tilt values of the SPOT in the direction of X, Y and Z axis. Based on these values the application can determine the postures of a person such as Lying Down, Sitting, Standing, Walking, Bending, and Arm Moving. We provide user mechanisms to define high level actions such as “attempting to get up from Lying Down position”, in terms of patterns of lower-level posture sequences. The system detects these patterns from the posture sequences reported by the Sun SPOTs, and reports them at desired locations.

El objetivo general del presente trabajo es poder interpretar un subconjunto del lenguaje de programación AmbientTalk en un dispositivo móvil liviano que sea capaz de interactuar con otros programas desarrollados en AmbientTalk alojados en otros dispositivos que no sean necesariamente del mismo tipo de equipo. El dispositivo móvil liviano usado para esta memoria es un Sun SPOT. El intérprete oficial de AmbientTalk está desarrollado para Java ME CDC, mientras que los Sun SPOT poseen como plataforma de desarrollo Java ME CLDC. Una de las diferencias importantes entre ambos es que tanto reflexión como serialización no están presentes en CLDC, mientras que si lo están en CDC. Ambas son características muy usadas y muy imprescindibles para el intérprete oficial, por lo que se hace necesario replantear un nuevo intérprete para los Sun SPOT. Debido a las capacidades de cómputo limitadas de un Sun SPOT, se decidió separar la plataforma en dos aplicaciones que corren en máquinas distintas: un compilador que lea código fuente AmbientTalk y que genere un archivo binario, y un intérprete AmbientTalk que lea ese archivo binario e interprete el programa almacenado en él en un Sun SPOT. A cada una de las aplicaciones se le realizó un diseño de arquitectura lógica, separando los componentes en módulos semi desacoplados. Luego se realizó una validación al intérprete, realizando para tal efecto una aplicación ejemplo de programación distribuida consistente en un sistema controlador de luces remotas. Se realizó esta aplicación tanto para Java ME CLDC, como para AmbientTalk, mostrando que mientras la aplicación en Java ME CLDC es más eficiente, la aplicación en AmbientTalk fue más simple de desarrollar. Finalmente se concluye que esta plataforma es un paso para tener una implementación de AmbientTalk en toda la gama de dispositivos con Java y que AmbientTalk permite disminuir el tiempo de programación para aplicaciones distribuidas en un Sun SPOT.

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A wireless sensor network consists of small, limited-resource embedded systems exchanging environment data and activating controls. These networks can be deployed in hostile environments to monitor wildlife habitats, implemented in factories to locate mobile equipment, and installed in home environments to optimize the use of utilities. Each of these scenarios requires network security to protect the network data. The IEEE 802.15.4 standard is designed for WSN communication, yet the standard states that it is not responsible for defining the initialization, distribution, updating, or management of network public keys. Individuals seeking to research security topics will find that there are many 802.15.4-compliant development hardware kits available to purchase. However, these kits are not easily compared to each other without first-hand experience. Further, not all available kits are suitable for research in WSN security. This thesis evaluates a broad spectrum of 802.15.4 development kits for security studies. Three promising kits are examined in detail: Crossbow MICAz, Freescale MC1321x, and the Sun SPOT. These kits are evaluated based on their hardware, software, development environment, additional libraries, additional tools, and cost. Recommendations are made to security researchers advising which kits to use depending on their design needs and priorities. Suggestions are made to each company on how to further improve their kits for security research.