The introduction of Internet of Things (IoT) technologies, connected and synchronized devices, and smart solutions have brought tremendous technological advancements in global communication. The increasing demand for innovative measurement systems, smart sensing nodes and battery-less instruments is challenging instrumentation and measurement industries to improve communication, power budget and the efficiency in Wireless Sensor Nodes (WSN). In this context, this paper aims to contribute to the state of the art with an energy autonomous platform for power measurement in RF environments. The architecture is a self-sustained, battery-free Radio Frequency (RF) measurement system with a time domain record that it can transmit to receiving stations through appropriate IoT channels. This paper discusses the viability of a battery-free measuring device capable of initiating measurement activity only when ambient RF power levels rise above set thresholds. The paper presents the working principles through modeling, simulation and experimental characterization in order to demonstrate the validity of the proposed method.

物联网（IoT）技术，连接和同步设备以及智能解决方案的引入带来了全球通信领域的巨大技术进步。对创新测量系统，智能传感节点和无电池仪器的需求不断增长，这对仪器和测量行业提出了挑战，以改善无线传感器节点（WSN）的通信，功率预算和效率。在这种情况下，本文旨在通过用于射频环境中功率测量的能量自主平台为最新技术做出贡献。该架构是一个具有时域记录的可自我维持的无电池射频（RF）测量系统，它可以通过适当的IoT通道传输到接收站。本文讨论了一种无电池测量设备的可行性，该测量设备仅在环境RF功率水平超过设置的阈值时才能启动测量活动。本文通过建模，仿真和实验表征提出了工作原理，以证明该方法的有效性。