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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Implementa??o de sistemas baseados em regras nebulosas por m?todo matricial em dispositivos embarcados

Ganselli, Tiago Trevisani 11 December 2014 (has links)
Made available in DSpace on 2016-04-04T18:31:41Z (GMT). No. of bitstreams: 1 Tiago Trevisani Ganselli.pdf: 2054440 bytes, checksum: 19be2b4fac5342b6227e8ce56bfbc1f2 (MD5) Previous issue date: 2014-12-11 / It is known that the need for devices with higher processing capacities and low power consumption is increasing, making algorithm optimization necessary to allow the maximum utilization of the application s resources. In this work, the Matrix Method was implemented in embedded systems to solve Fuzzy calculations, allowing the decision-making process to be included in several applications. Code was developed for Scilab, Arduino, and the embedded Linux distribution OpenWRT, being tested in real devices through the comparison with the original Matrix Method algorithm implementation and the case study of the MAC anomaly in IEEE 802.11 networks. Results show that the Matrix Method is compatible for use in embedded systems, and the analysis and specific configuration of each application are necessary for the best performance to be achieved. Conclusion shows that the balance between the decision-making and the result precision is essential to lower resource consumption to the maximum. It is expected that other studies make use of the created algorithms, assisting the decision-making process in embedded systems for the countless emerging applications. / Com a crescente necessidade de dispositivos com maior capacidade de processamento e menor consumo energ?tico faz-se necess?rio o uso de algoritmos otimizados, permitindo o m?ximo aproveitamento dos recursos dispon?veis na aplica??o. Neste trabalho foi realizada a implementa??o do M?todo Matricial para execu??o de c?lculos usando L?gica Nebulosa em dispositivos embarcados, tornando poss?vel a tomada de decis?o local nas mais diversas aplica??es. Foram desenvolvidos c?digos para o Scilab, Arduino e para a distribui??o de Linux embarcado OpenWRT, que foram testados em dispositivos reais atrav?s da compara??o com o c?digo original do M?todo Matricial e com o estudo de caso da Anomalia da MAC em redes IEEE 802.11. Os resultados obtidos indicam que o M?todo Matricial ? compat?vel com o uso em sistemas embarcados, sendo necess?ria a an?lise e configura??o espec?fica de cada aplica??o para que o melhor desempenho seja alcan?ado. Concluiu-se que o balanceamento entre a tomada de decis?o e a precis?o do resultado ? essencial para realizar o c?lculo com o menor consumo de recursos poss?vel. Espera-se que outros trabalhos fa?am uso dos algoritmos criados, a fim de auxiliar na tomada de decis?o em dispositivos embarcados nas in?meras aplica??es emergentes.

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