期刊
IEEE ACCESS
卷 7, 期 -, 页码 154836-154843出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2019.2948973
关键词
Flow sensor; energy harvester; voltage regulation; wireless sensor networks (WSN)
资金
- Shenzhen Science and Technology Innovation Committee [JCYJ20170412154426330]
- Guangdong Natural Science Funds [2016A030306042, Grant2018A050506001]
- Southern University of Science and Technology
This paper reports a voltage regulation method with power management to enhance the reliability and stability of the self-powered flow rate sensor. Triboelectric energy harvesters are used both as the sensing signals and the power supply. One channel of the raw voltage from wind flow is regulated to a stable signal by the integral circuit, while the other channel is used for energy harvesting to provide the power for the whole circuit. Power management chip with ultra-low power consumption has been utilized with micro controller unit and antenna for wireless transmission. A low deviation of less than 2.5% has been achieved for the flow sensing signal and the temperature has also been monitored simultaneously, which shows promising application for the central air-conditioning system in smart buildings.
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