One of the strong requirements of wireless sensor networks is the low power consumption in order to extend the life of the network itself. This constraint is even stronger for body area networks. Energy harvesting is an interesting solution that captures the energy from the environment. This work presents an electric-mechanical model of a piezoelectric transducer in a cantilever configuration. The model has been characterized measuring the acceleration and the open circuit voltage of a piezoelectric cantilever subjected to a sinusoidal force with different values frequency and subject to an impulsive force. The model has been used to identify the optimal position in which the piezoelectric cantilever has to be placed on a shoe in order to obtain the maximum energy while walking or running. We designed a circuit, that has been placed on a running shoe, that can be used to feed energy for sensors of body area networks.
Energy Harvesting for Body Area Networks / Enrico, Camilloni; DE MASO-GENTILE, Giuseppe; Cristiano, Scavongelli; Conti, Massimo. - STAMPA. - (2014), pp. 113-126. (Intervento presentato al convegno International Workshop "Mobile Networks for Biometric Data Analysis" mBiDA tenutosi a Ancona, Italy nel 30-31 October, 2014).
Energy Harvesting for Body Area Networks
Giuseppe Demaso Gentile;CONTI, MASSIMO
2014-01-01
Abstract
One of the strong requirements of wireless sensor networks is the low power consumption in order to extend the life of the network itself. This constraint is even stronger for body area networks. Energy harvesting is an interesting solution that captures the energy from the environment. This work presents an electric-mechanical model of a piezoelectric transducer in a cantilever configuration. The model has been characterized measuring the acceleration and the open circuit voltage of a piezoelectric cantilever subjected to a sinusoidal force with different values frequency and subject to an impulsive force. The model has been used to identify the optimal position in which the piezoelectric cantilever has to be placed on a shoe in order to obtain the maximum energy while walking or running. We designed a circuit, that has been placed on a running shoe, that can be used to feed energy for sensors of body area networks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
