標題: A Self-Powering Wireless Environment Monitoring System Using Soil Energy
作者: Lin, Fu-To
Kuo, Yu-Chun
Hsieh, Jen-Chien
Tsai, Hsi-Yuan
Liao, Yu-Te
Lee, Huang-Chen
電機資訊學士班
Undergraduate Honors Program of Electrical Engineering and Computer Science
關鍵字: Soil energy;renewable energy;wireless sensor;temperature sensor;humidity sensor;integrated circuit
公開日期: 1-Jul-2015
摘要: This paper presents a self-powering wireless environment monitoring system using renewable and cost-efficient soil energy. The D-size (55.8 cm(3)) soil energy cell with carbon and zinc electrodes can produce similar to 60-100 mu W, depending on the water contents and microbial reactions in the soil. The RC circuit model of a soil cell is proposed for understanding the electrical characteristics of the cell. The wireless sensing system, including temperature and air moisture sensors, a custom low-power capacitive sensor readout silicon chip, a microcontroller, and a Bluetooth low-energy transmitter, is demonstrated for long-term environmental monitoring solely by the fabricated D-size soil cell. The capacitive sensor readout chip is fabricated in a 0.18-mu m CMOS process and only consumes 3 mu W. The capacitance readout range is 160-200 pF. The total power consumption of the wireless temperature and air moisture monitoring system is similar to 20 mu W and 1 mW in the sleep mode and the active wireless data communication operations, respectively. The new technology can enable remote field environment monitoring with less labor-intensive work and battery replacement.
URI: http://dx.doi.org/10.1109/JSEN.2015.2398845
http://hdl.handle.net/11536/124625
ISSN: 1530-437X
DOI: 10.1109/JSEN.2015.2398845
期刊: IEEE SENSORS JOURNAL
Volume: 15
起始頁: 3751
結束頁: 3758
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