Abstract
Green and sustainable power supply for sensors in pavement monitoring system has attracted attentions of civil engineers recently. In this paper, the piezoelectric energy harvesting technology is used to provide the power for the acceleration sensor and Radio Frequency (RF) communication. The developed piezoelectric bimorph cantilever beam is used for collecting the vibrational energy. The energy collection circuit is used to charge the battery, where the power can achieve 1.68 mW and can meet the power need of acceleration sensor for data collection and transmission in one operation cycle, that is, 32.8 seconds. Based on the piezoelectric-cantilever-beam powered sensor, the preliminary study on the IoT-based pavement monitoring platform is suggested, which provides a new applicable approach for civil infrastructure health monitoring.
Highlights
With the development of IoT (Internet of Things) technology, the demand for sensor in the engineering industry is increasing dramatically; in the meantime the power supply for the sensor in the process has attracted more and more attention of researchers
Bogue (2009) considered that the power supply has been a great problem for the large-scale engineering application of sensors [1]
The piezoelectric power supply device has the advantages of small volume and can be used for long-term operation without device replacement
Summary
With the development of IoT (Internet of Things) technology, the demand for sensor in the engineering industry is increasing dramatically; in the meantime the power supply for the sensor in the process has attracted more and more attention of researchers. Bogue (2009) considered that the power supply has been a great problem for the large-scale engineering application of sensors [1] To solve this problem, there have been various new energy approaches. There have been many researches on the pavement performance analysis [17,18,19,20,21,22] and pavement materials areas [23, 24], there is still a lack of researches on the real-time monitoring of pavement structures To overcome these limitations and further develop the self-powered sensor technique, in this study, the bimorph piezoelectric-cantileverbeam type pressure transducer was used for collecting environment vibration energy. Based on the piezoelectric selfpowered sensor, the preliminary study on the IoT-based pavement monitoring platform is suggested and designed, which provides a new applicable approach for civil infrastructure health monitoring
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