Title :
A novel piezoelectric micro-generator to power Wireless Sensors Networks in vehicles
Author :
Mouapi, Alex ; Hakem, Nadir ; Delisle, Gilles Y. ; Kandil, Nahi
Author_Institution :
Lab. de Rech. Telebec en Commun. Souterraines (LRTCS), Univ. du Quebec en Abitibi-Temiscamingue (UQAT), Val-d´Or, QC, Canada
Abstract :
This paper proposes an autonomous power supply to feed the nodes of a Wireless Sensor Network (WSN) used in vehicles. The vibration levels detected in a moving vehicle in an urban or semi urban area are used as the primary form of autonomous energy. Measurements show that a maximum power density of -16.9 dB/Hz is observed around 15 Hz for cruising speed up to. Our design is based on a cantilever piezoelectric transducer 90 km/h mechanically adjustable in frequency designed and manufactured to resonate very close to 15 Hz. Experimental results clearly demonstrate a level of energy sufficient to adequately supply power to a wireless sensor node. Specifically, for an optimum load resistance of 73.13 kΩ, a power of 3 μW is achieved by our autonomous supply.
Keywords :
electric vehicles; piezoelectric transducers; piezoelectricity; vibrations; wireless sensor networks; autonomous energy; autonomous power supply; cantilever piezoelectric transducer; moving vehicle; piezoelectric micro-generator; power 3 muW; resistance 73.13 kohm; vibration levels; wireless sensors networks; Acceleration; Piezoelectric transducers; Structural beams; Vehicles; Vibrations; Wireless sensor networks; Energy recovery; WSN; piezoelectric transducer; vibrations energy;
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2015 IEEE 15th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4799-7992-9
DOI :
10.1109/EEEIC.2015.7165317
