1. Department of Electrical, Electronic, and Information Engineering ‘Guglielmo Marconi’, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy.
2. Department of Agricultural and Food Sciences, University of Bologna, Viale G. Fanin 50, 40127 Bologna, Italy.
3. xFarm S.r.l., Via Lanza 29, 15040 Valmacca (AL), Italy.