Landaluce Hugo, Arjona Laura, Perallos Asier, Falcone Francisco, Angulo Ignacio, Muralter Florian
DeustoTech, University of Deusto, 48940 Bilbao, Spain.
Paul G. Allen Center for Computer Science and Engineering, University of Washington, Seattle, WA 98195, USA.
Sensors (Basel). 2020 Apr 28;20(9):2495. doi: 10.3390/s20092495.
Radio frequency identification (RFID) and wireless sensors networks (WSNs) are two fundamental pillars that enable the Internet of Things (IoT). RFID systems are able to identify and track devices, whilst WSNs cooperate to gather and provide information from interconnected sensors. This involves challenges, for example, in transforming RFID systems with identification capabilities into sensing and computational platforms, as well as considering them as architectures of wirelessly connected sensing tags. This, together with the latest advances in WSNs and with the integration of both technologies, has resulted in the opportunity to develop novel IoT applications. This paper presents a review of these two technologies and the obstacles and challenges that need to be overcome. Some of these challenges are the efficiency of the energy harvesting, communication interference, fault tolerance, higher capacities to handling data processing, cost feasibility, and an appropriate integration of these factors. Additionally, two emerging trends in IoT are reviewed: the combination of RFID and WSNs in order to exploit their advantages and complement their limitations, and wearable sensors, which enable new promising IoT applications.
射频识别（RFID）和无线传感器网络（WSN）是实现物联网（IoT）的两大基本支柱。RFID系统能够识别和跟踪设备，而WSN则协同工作，从相互连接的传感器收集并提供信息。这带来了一些挑战，例如，将具有识别能力的RFID系统转变为传感和计算平台，以及将它们视为无线连接传感标签的架构。这一点，再加上WSN的最新进展以及这两种技术的整合，带来了开发新型物联网应用的机会。本文对这两种技术以及需要克服的障碍和挑战进行了综述。其中一些挑战包括能量收集效率、通信干扰、容错能力、更高的数据处理能力、成本可行性以及这些因素的适当整合。此外，还综述了物联网的两个新兴趋势：结合RFID和WSN以发挥其优势并弥补其局限性，以及可穿戴传感器，它们催生了新的、有前景的物联网应用。
