Wisepower presents HAT (Hybrid Autonomous Transceiver) for automotive applications.

HATs are 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.

In the demonstrator available we have a number of HAT devices equipped with temperature sensors for monitoring the temperature distribution in a car.

These devices can be simply placed in different locations inside a car and do not require any wiring for powering or signal transmission. This allows for an easy repositioning in different locations if needed. The HAT-temperature sensors obtain the energy necessary for their functions both form ambient light and from car vibrations (during car motion). This energy is employed to power a temperature sensor, a computing element and a radio transmitter. The temperature data acquired by the sensors is elaborated onboard and transmitted to a central unit. The central unit (here represented by a simple tablet PC) collects the information from each HAT device and displays the resulting temperature map of the car.

The vibration energy is harvested thanks to the exclusive WISEPOWER TechnologyTM 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.