Read full paper at: www.scirp.org/journal/PaperInformation.aspx?PaperID=53782#.VNMYQSzQrzE Author(s) Marco Allegretti , Silvano Bertoldo Affiliation(s) CINFAI (Consorzio Interuniversitario Nazionale per la Fisica delle Atmosfere e delle Idrosfere), Local Unit at Politecnico di Torino, Torino, Italy . ABSTRACT RFID tags are used for different purposes. One of the major problems to be addressed, particularly for monitoring purposes, is their limited power autonomy. Tags must perform different tasks with limited power consumption and their batteries capacities are often too low, even if low power consumption techniques are implemented. In these operational situations tags should be kept in operation for long periods of time and the common solution is to go directly where they are installed and recharge them manually or change their batteries; alternatively, when possible, small photovoltaic (PV) panels may be adopted. This paper...
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