基于无源RFID的混凝土温度监测技术研究  

Research on concrete temperature-monitoring technique based on passive RFID

作　　者：周双喜[1] 邓芳明[1] 魏永起[2] 喻乐华[1] 吴翔[1] 付智辉[1] 

机构地区：[1]华东交通大学,江西南昌330013 [2]东华理工大学,江西南昌330013

出　　处：《土木工程学报》2017年第3期65-73,82,共10页China Civil Engineering Journal

基　　金：国家自然科学基金(51662008);江西省重点研发计划(20161BBE50076)

摘　　要：温度控制是混凝土固化期间的重要措施。针对现有混凝土温度监测方法的缺点,设计一种用于混凝土温度监测的无源射频识别(RFID)传感器标签。该RFID传感器标签是基于超高频(UHF)的EPC-2通信协议,且工作于无源模式下。由于混凝土是有损多相复合材料,文中具体分析电磁波在混凝土中的总损耗,确定标签可正常工作的基本条件。后期试验对所设计的温度传感器标签进行了温度测试、校准以及通信性能测试。试验结果表明,基于文中设计的无源RFID传感器标签所测试的温度与传统的热电偶测试结果基本一致,最大温差不超过0.5℃。相比于现有的混凝土温度监测方法,具有便利性强、成本低、寿命长等显著优点。Temperature control is an important step during the concrete curing. Aiming at the disadvantages of current concrete-temperature monitoring technologies, a passive Radio Frequency Identification （RFID） temperature sensor tag is designed for concrete temperature monitoring. The proposed RFID sensor tag is based on the EPC Generation-2 Ultra- High Frequency （UHF） communication protocol and operates in passive mode. Since the concrete is a lossy material, the total loss of electromagnetic wave transmitting in concrete is analyzed. And the working conditions of the RFID sensor tag in concrete are determined. The temperature calibration and communication performances of the proposed sensor tag were then measured. The temperature measured by the proposed sensor tag agrees well with the results measured by the conventional thermocouple with maximum 0.5 ℃ temperature difference. The proposed temperature monitoring technique takes the advantages of high convenience, low cost and long lifespau.

关 键 词：混凝土温度监测 射频识别技术 射频识别传感器标签 

分 类 号：TU528.07[建筑科学—建筑技术科学]