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Open AccessArticle

A Wind Energy Powered Wireless Temperature Sensor Node

1
Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University, Chongqing 400044, China
2
Microsystem Research Center, Chongqing University, Chongqing 400044, China
*
Author to whom correspondence should be addressed.
Academic Editor: Stefano Mariani
Sensors 2015, 15(3), 5020-5031; https://doi.org/10.3390/s150305020
Received: 12 November 2014 / Revised: 8 January 2015 / Accepted: 26 January 2015 / Published: 27 February 2015
(This article belongs to the Collection Modeling, Testing and Reliability Issues in MEMS Engineering)
A wireless temperature sensor node composed of a piezoelectric wind energy harvester, a temperature sensor, a microcontroller, a power management circuit and a wireless transmitting module was developed. The wind-induced vibration energy harvester with a cuboid chamber of 62 mm × 19.6 mm × 10 mm converts ambient wind energy into electrical energy to power the sensor node. A TMP102 temperature sensor and the MSP430 microcontroller are used to measure the temperature. The power management module consists of LTC3588-1 and LT3009 units. The measured temperature is transmitted by the nRF24l01 transceiver. Experimental results show that the critical wind speed of the harvester was about 5.4 m/s and the output power of the harvester was about 1.59 mW for the electrical load of 20 kΩ at wind speed of 11.2 m/s, which was sufficient to power the wireless sensor node to measure and transmit the temperature every 13 s. When the wind speed increased from 6 m/s to 11.5 m/s, the self-powered wireless sensor node worked normally. View Full-Text
Keywords: wireless sensor node; temperature; energy harvesting; wind-induced vibration; piezoelectricity wireless sensor node; temperature; energy harvesting; wind-induced vibration; piezoelectricity
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MDPI and ACS Style

Zhang, C.; He, X.-F.; Li, S.-Y.; Cheng, Y.-Q.; Rao, Y. A Wind Energy Powered Wireless Temperature Sensor Node. Sensors 2015, 15, 5020-5031.

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