材料科学
能量收集
计算机科学
无线
无线传感器网络
灵敏度(控制系统)
储能
能量(信号处理)
环境科学
功率(物理)
实时计算
电气工程
汽车工程
电信
电子工程
工程类
物理
量子力学
计算机网络
作者
Pukar Maharjan,Trilochan Bhatta,Hui Xue,Gagan Bahadur Pradhan,Hyesu Song,Kumar Shrestha,Jae Yeong Park
标识
DOI:10.1002/aenm.202203849
摘要
Abstract Maintaining clean and fresh pool water requires regular monitoring and treatment. However, the employed methods are manual, complex, and time‐consuming. Herein, a self‐sustainable autonomous smart pool monitoring system (SPMS) that can monitor various physio‐electrochemical properties of the pool water in real‐time without requiring external power is proposed. SPMS includes an electromagnetic generator inspired by the novel brachistochrone bowl which harvests energy from random motion (peak power 72 mW at 4 Hz and 0.5 g) and supplies the wireless transmission unit and the highly sensitive multifunctional sensor unit (MSU) including pH (−60.71 mV pH −1 ), temperature (2.5 Ω °C −1 ), chloride (0.355 mV ppm −1 ; <250 ppm), conductivity (3.25 × 10 −5 µS ppm −1 ), and wave motion (1.27 V Hz −1 ). The fabricated MSU has adequate sensitivity and accuracy to detect minor variations in the water quality for indoor and outdoor environments. Finally, the smart pool monitoring application of the SPMS is demonstrated in real‐time by acquiring the sensor data and wirelessly transmitting it to the custom‐developed mobile application utilizing harvested energy. Combining energy harvesting and water quality sensing, the free‐floating completely isolated SPMS device demonstrates a portable, freestanding, wireless, autonomous, and self‐powered pool monitoring system for maintaining a hygienic and safe swimming environment.
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