Autonomous Energy-Efficient Wireless Sensor Network Platform for Home/Office Automation
Autonomous Energy-Efficient Wireless Sensor Network Platform for Home/Office Automation
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DOI：
10.1109/jsen.2019.2892604
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发表时间：
2019-05-01
影响因子：
4.3
通讯作者：
Scuderi, Antonino
中科院分区：
文献类型：
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作者：
Abella, Crispino S.;Bonina, Salvo;Scuderi, Antonino
基于无线传感器网络（WSNs）的智能家居/办公室可以为用户提供一个辅助的生活和工作环境。在这些应用中，分布式网络节点由配备有传感器、微控制器、无线电和天线的低功耗、低成本、高能效的电子平台组成，能够周期性地感测、接收、存储、预处理环境数据并将其传输到远程主机站。传统的节点通常由电池供电，导致对寿命和可部署设备的最大数量的显著限制。为了满足下一代物联网（IoT）应用的需求，需要大量互连的无线网络节点，本文提出了一种WSN平台的设计和实现，该平台的节点由于与可充电电池相关联的嵌入式光伏电池板和具有优化电源管理策略的节能设计而具有能量自治性。所实现的节点能够从100勒克斯开始采集室内环境光，并根据可用能量自适应地设置传感器采集和RP传输速率。此外，它还提供从1到500 kbps的空中数据速率的长距离数据传输。WSN节点设备在8.6 x 5.4 cm（2）柔性PCB上实现，因此甚至可以适应曲面。与商业物联网节点的比较揭示了最先进技术的显着改进。
Smart homes/offices based on wireless sensor networks (WSNs) can provide an assisted living and working environment to the users. In these applications, the distributed network nodes are made up of low-power low-cost high-energy-efficient electronic platforms equipped with sensors, microcontroller, radio, and antenna, able to periodically sense, receive, store, pre-process, and transmit ambient data to a remote host station. Conventional nodes are usually supplied by batteries, resulting in a significant limitation to the lifetime and to the maximum number of deployable devices. To meet the demand of the next Internet-of-Things (IoT) applications, requiring a vast plurality of interconnected wireless network nodes, this paper presents the design and implementation of a WSN platform whose nodes are energetically autonomous thanks to an embedded photovoltaic panel associated to a rechargeable battery and a power-efficient design with optimized power-management strategy. The implemented node is able to harvest indoor ambient light starting from 100 lux and, according to the available energy, adaptively sets the sensors acquisition and RP transmission rate. Moreover, it provides long-distance data transmission with air data rate from I to 500 kbps. The WSN node device is implemented on an 8.6 x 5.4 cm(2) flexible PCB, being therefore amenable to conform even to curved surfaces. Comparison with the commercial IoT nodes reveals a significant improvement in the state of the art.