Energetically autonomous devices that can be associated with a wide variety of sensors in order to measure and transmit physical quantities to a central control unit.
These devices can be simply placed in different vibrating locations and do not require any wiring for powering or signal transmission. This allows for an easy repositioning in different locations if needed. Sensors obtain the energy necessary for their functions both form ambient light and from vibrations. This energy is employed to power sensors like temperature, humidity, accelerometers; a computing element and a radio transmitter. The data acquired by the sensors is elaborated onboard and transmitted to a central unit. The central unit collects the information from device and displays the results.
The vibration energy is harvested thanks to the exclusive WISEPOWER Technology based on an innovative use of non-linear dynamics of piezoelectric oscillators (patents WO/2008/099437 and US2010207491) inherited from the long-standing research experience developed with NiPS Laboratory at the University of Perugia.
Thanks to this technology the efficiency of the energy conversion mechanisms is significantly increased above 300% compared with traditional linear piezoelectric oscillators.