Biomechanické zdroje energie pro napájení mobilních senzorů

Abstract

This paper adresses development and optimalization of a biomechanical energy conversion device. First the theoretical basis concerning the creation of biomechanical energy in human body are studied. Next the number of available motions is studied which are appliable for powering the generator with biomechanical motion power. The center of mass movement is identified as a suitable candidate. Based on the knowledge aquired from studiing this motion we propose a linear generator concept with a coil moving through a permanent magnetic field. This field is computed for known design of permanent magnets. Values characteristic for this field are used for computing and optimalization. Simulation software is programmed, which is capable of simulating the behaviour of the linear PM generator with changing input parameters. Theese contain mechanical input parameters of the generator with the calculated magneticfield and biological parameters of the user. Based on the model outputs we propose electrical rectification circuit, which transoforms the output electrical energy according to the battery needs.