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UHF passive RFID ‐based sensor‐less system to detect humidity for irrigation monitoring
Author(s) -
Alonso Daniel,
Zhang Qianyun,
Gao Yue,
Valderas Daniel
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30611
Subject(s) - ultra high frequency , humidity , sensitivity (control systems) , wireless , wireless sensor network , range (aeronautics) , real time computing , engineering , embedded system , computer science , telecommunications , electronic engineering , computer network , physics , thermodynamics , aerospace engineering
This article aims to propose a RFID system to detect the humidity of the soil in flowerpots and help farmers to judge whether the plants should be watered or not. By tuning the tag to dry soil state, it achieves higher dynamic range and sensitivity (20 dB) compared to a commercial RFID tag performance. This approach saves the addition of a sensor element to the RFID tag to operate as a wireless sensor.