用于激活工业厂房传感节点的低功耗 RFID 唤醒无线电设备的设计与集成

IF 2.3 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE journal of radio frequency identification Pub Date : 2024-07-22 DOI:10.1109/JRFID.2024.3432185
Alessio Mostaccio;Nicola D’Uva;Sara Amendola;Cecilia Occhiuzzi;Gaetano Marrocco
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引用次数: 0

摘要

混合无线传感节点由不同的采样/处理和通信接口组成,能够创建对运营成本和架构影响有限的传感网络,因此在工业场景中越来越受到关注。在本文中,作者介绍了用于按需激活传感节点的射频识别(RFID)板的设计和特性。该设备利用 EM4325 RFID IC 的功能,在接收到射频事件时发出简单的电压转换,以唤醒外部设备。天线(共面 F 天线)满足了在潜在爆炸环境中应用的设计限制,实现了 4 dBi 的增益。通过比较集成电路在唤醒信号持续时间和功耗方面的两种配置,研究了集成电路的潜力。研究结果表明,在电源有限的情况下,选择性最强的配置是最合适的选择。
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Design and Integration of Low Power RFID Wake-Up Radio for the Activation of Sensing Nodes in Industrial Plants
Hybrid wireless sensing nodes, composed of different sampling/processing and communication interfaces are gaining increasing interest in industrial scenarios thanks to their capability to create sensing networks with limited impact on operational costs and architectures. In this paper, the authors present the design and characterization of a Radio Frequency IDentification (RFID) board for the on-demand activation of sensing nodes. The device resorts to the functionalities of the EM4325 RFID IC which can emit simple voltage transitions upon the reception of RF events to wake up an external device. The antenna, namely a coplanar F-antenna, fulfills the design constraints due to its application in a potentially explosive environment and achieves a realized gain of 4 dBi. The latter, combined with the extremely low power sensitivity of the IC configured in semi-active mode, grants a reading distance of approximately 10 m. The potentialities of the IC are then investigated by comparing two configurations of the IC in terms of the duration of the wake-up signal and thus power consumption. The findings indicate that the most selective configuration is the most indicated choice in case of limited power sources.
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