Passive Internet of Events Enabled by Broadly Compatible Self-Powered Visualized Platform Toward Real-Time Surveillance

被引:1
作者
Chen, Chaojie [1 ]
Zhang, Haoran [2 ]
Xu, Guoqiang [1 ]
Hou, Tingting [1 ]
Fu, Jingjing [1 ]
Wang, Haoyu [1 ]
Xia, Xin [1 ,2 ]
Yang, Cheng [3 ]
Zi, Yunlong [1 ,2 ,4 ,5 ]
机构
[1] Chinese Univ Hong Kong CUHK, Dept Mech & Automat Engn, Shatin, Hong Kong, Peoples R China
[2] Hong Kong Univ Sci & Technol Guangzhou, Thrust Sustainable Energy & Environm, Guangzhou 511400, Guangdong, Peoples R China
[3] Tsinghua Univ, Inst Mat Res, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China
[4] Hong Kong Collaborat Innovat Res Inst Futian, HKUST Shenzhen, Shenzhen 518048, Guangdong, Peoples R China
[5] Guangzhou HKUST Fok Ying Tung Res Inst, Guangzhou 511400, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
passive IoE; self-powered visualized platform; surveillance; triboelectric nanogenerators; wireless sensing; SENSOR; STRAIN;
D O I
10.1002/advs.202304352
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Surveillance is an intricate challenge worldwide especially in those complicated environments such as nuclear plants, banks, crowded areas, barns, etc. Deploying self-powered wireless sensor nodes can increase the system's event detection capabilities by collecting environmental changes, while the incompatibility among components (energy harvesters, sensors, and wireless modules) limits their application. Here, a broadly compatible self-powered visualized platform (SPVP) is reported to construct a passive internet of events (IoE) network for surveillance systems. By encoding electric signals into reference and working LEDs, SPVP can visualize resistance change generated by commercial resistive sensors with a broad working range (<10(7) Omega) and the transmission distance is up to 30 meters. Visible light signals are captured by surveillance cameras and processed by the cloud to achieve real-time event monitoring and identification, which forms the passive IoE network. It is demonstrated that the passive-IoE-based surveillance system can detect intrusion, theft, fire alarm, and distress signals quickly (30 ms) for 10(6) cycles. Moreover, the confidential information can be encrypted by SPVPs and accessed through a phone application. This universal scheme may have huge potential for the construction of safe and smart cities.
引用
收藏
页数:11
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