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Title	A Low Power Iot Sensor Node Architecture For Waste Management Within Smart Cities Context
ID_Doc	2415
Authors	Cerchecci, M; Luti, F; Mecocci, A; Parrino, S; Peruzzi, G; Pozzebon, A
Year	2018
Published	SENSORS, 18, 4
DOI	http://dx.doi.org/10.3390/s18041282
Abstract	This paper focuses on the realization of an Internet of Things (IoT) architecture to optimize waste management in the context of Smart Cities. In particular, a novel typology of sensor node based on the use of low cost and low power components is described. This node is provided with a single-chip microcontroller, a sensor able to measure the filling level of trash bins using ultrasounds and a data transmission module based on the LoRa LPWAN (Low Power Wide Area Network) technology. Together with the node, a minimal network architecture was designed, based on a LoRa gateway, with the purpose of testing the IoT node performances. Especially, the paper analyzes in detail the node architecture, focusing on the energy saving technologies and policies, with the purpose of extending the batteries lifetime by reducing power consumption, through hardware and software optimization. Tests on sensor and radio module effectiveness are also presented.
Author Keywords	IoT; smart city; waste management; LoRa; LPWAN; energy saving; ultrasound sensor

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