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Frequency Division Multiplexing Wireless Connection

机译:频分复用无线连接

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摘要

In this paper, a newly designed wireless sensing network platform for structural monitoring applications is presented, and the results of a validation test performed in the authors' laboratory are reported. The main features offered by the proposed wireless platform are the capability of real-time and multi-channel data transmission, the high compatibility to different types of sensors, a highly efficient power-supply, and low-cost. Instead of adopting the most commonly used commercial wireless modems, the wireless communication is pursued by implementing an optimized and customized solution based on a recent System on Chip wireless transceiver. The Frequency Division Multiplexing method is exploited to ensure the real-time feature of the multi-channel data transmission. A simple and practical point-to-point topology is pursued. The usage of switching regulators which feature low quiescent current, highly efficient power conversion, an adjustable output voltage, and a high output power make this platform suitable for both low-power and non low-power structural monitoring applications involving different types of sensors. In order to validate the prototyped platform, a laboratory test is performed. The measurements of the acceleration response of a simple 3-storey structure mounted on a shaking table are acquired from both a wired DAQ system and the developed wireless platform. The data comparison enables to validate the efficacy of the real-time, multi-channel wireless transmission.
机译:在本文中,提出了一种新设计的用于结构监测应用的无线传感网络平台,并报告了在作者实验室中进行的验证测试的结果。提议的无线平台提供的主要功能是实时和多通道数据传输的能力,对不同类型传感器的高度兼容性,高效电源和低成本。通过采用基于最新的片上系统无线收发器的优化和定制解决方案来追求无线通信,而不是采用最常用的商用无线调制解调器。利用频分复用方法来确保多通道数据传输的实时性。追求一种简单实用的点对点拓扑。使用具有低静态电流,高效功率转换,可调输出电压和高输出功率的开关稳压器,使得该平台适用于涉及不同类型传感器的低功率和非低功率结构监测应用。为了验证原型平台,进行了实验室测试。从有线DAQ系统和已开发的无线平台均可获取安装在振动台上的简单3层结构的加速度响应的测量值。数据比较可以验证实时多通道无线传输的功效。

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