Sincronização temporal para dispositivos com conexão sem fio de baixo consumo de energia
Tipo
Dissertação
Data
2014-10-23
Autores
Nascimento, Fernando Biazi
Orientador
Lopes, Paulo Batista
Título da Revista
ISSN da Revista
Título de Volume
Membros da banca
Garcia, Paulo Alves
Meloni, Luis Geraldo Pedroso
Meloni, Luis Geraldo Pedroso
Programa
Engenharia Elétrica
Resumo
The present work consists of an implementation of time distribution protocol based on
PTP disclosed in the IEC 61588:2009 / IEEE 1588-2008 standard to be used in low-power
wireless devices. The distribution of time is important to determine the order of occurrence
of events marked in distinct counts that can then be related. And the problems
of lack of synchronicity are evident in circumstances ranging from the study of historical
facts up to the investigation of intruders in modern equipments connected to the internet.
The work included development of a completely new software for the microcontroller
MSP430F2274TM using the CC2480TMnetwork controller. The implementation of the protocol
considers one of the mechanisms described by the standard and remains very close
to it, not fully conformant mainly because of lack of resources on the used device, but
the expected behavior was kept. The devices synchronize the time between them and
sintonize their time counting, in a way to reduce, as much as possible, the adjustments of
further synchronizations.
Descrição
Palavras-chave
sincronização , dispositivo de baixa potência , IEEE1588 , PTP , IEC61588 , sincronização de relógios , redes sem fio , synchronization , low-power device , IEEE1588 , PTP , IEC61588 , clock synchronization , wireless network
Citação
NASCIMENTO, Fernando Biazi. Sincronização temporal para dispositivos com conexão sem fio de baixo consumo de energia. 2014. 89 f. Dissertação (Mestrado em Engenharia Elétrica) - Universidade Presbiteriana Mackenzie, São Paulo, 2014.