Uma abordagem para redução de consumo de energia em nós sensores de redes de sensores sem fio: análise de caso do MICA2

• Ano de defesa: 2005
• Autor(a) principal: Adriano Borges da Cunha
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Engenharia elétrica
• Link de acesso: http://hdl.handle.net/1843/BUOS-8D4F5F

This dissertation presents a hardware solution to an effective reduction of power consumption in wireless sensor networks. Among the possible alternatives to reduce the power consumption the radio communication channel presented the best opportunity. A new solution that integrates the transmitted signal power control with the received information quality is presented in a dynamic mechanism. Several models were tested used to estimate battery residual capacity. The MICA2 wireless sensor platform was used in the experiments. Experiments show that the voltage-only based estimation is quite imprecise, and a new estimation technique is presented with minimal hardware intervention.