The Implementation of a Low Power Environmental Monitoring and Soil Moisture Measurement System Based on UHF RFID
Abstract
:1. Introduction
2. The Measurement System
2.1. System Description
2.2. System Power Consumption
3. Capacitive Soil Moisture Measurement Solution
3.1. Capacitive Sensor Model
3.2. Sensor Front End Characterization
4. Measurements and Results Analysis
4.1. Environmental Parameter Measurements
4.2. Capacitance and GWC Measurements
4.3. Comparison with Previous Works
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Frequency | Model Number | A | B |
---|---|---|---|
500 kHz | 1 | 0.366 | −0.00199 |
500 kHz | 2 | 0.150 | 0.00076 |
250 kHz | 1 | 0.295 | −0.00114 |
250 kHz | 2 | 0.109 | 0.00142 |
111.11 kHz | 1 | 0.243 | −0.00046 |
111.11 kHz | 2 | 0.153 | 0.00071 |
Parameter | This Work | [5] | [6] 2nd Solution |
---|---|---|---|
Carrier frequency | 860–960 MHz | 13.56 MHz | 860–960 MHz |
Protocol | EPC Gen2 | ISO 15693 | EPC Gen2 |
Power consumption | 340 µA @ 3.3 V | 1240 µA @ 3.3 V | 180 µA @ 3 V |
Max. error | <0.8% @ 50–950 pF | <2% @ 50–270 pF | <5.15 % @ 15–88 pF |
Active / Passive | semi active | passive | passive |
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Share and Cite
Korošak, Ž.; Suhadolnik, N.; Pleteršek, A. The Implementation of a Low Power Environmental Monitoring and Soil Moisture Measurement System Based on UHF RFID. Sensors 2019, 19, 5527. https://doi.org/10.3390/s19245527
Korošak Ž, Suhadolnik N, Pleteršek A. The Implementation of a Low Power Environmental Monitoring and Soil Moisture Measurement System Based on UHF RFID. Sensors. 2019; 19(24):5527. https://doi.org/10.3390/s19245527
Chicago/Turabian StyleKorošak, Žiga, Nejc Suhadolnik, and Anton Pleteršek. 2019. "The Implementation of a Low Power Environmental Monitoring and Soil Moisture Measurement System Based on UHF RFID" Sensors 19, no. 24: 5527. https://doi.org/10.3390/s19245527
APA StyleKorošak, Ž., Suhadolnik, N., & Pleteršek, A. (2019). The Implementation of a Low Power Environmental Monitoring and Soil Moisture Measurement System Based on UHF RFID. Sensors, 19(24), 5527. https://doi.org/10.3390/s19245527