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基于RFID感知技术的螺栓松动监测系统

发表时间:2016-07-31  浏览量:1832  下载量:615
全部作者: 崔兴梅,吴键
作者单位: 南京理工大学机械工程学院
摘 要: 针对煤矿罐道结构中螺栓联接结构螺栓易松动而引发事故的情况,利用超高频射频识别(radio frequency identification,RFID)技术进行罐道螺栓松动检测的研究。设计螺栓齿轮传动机构,通过螺栓松动引起齿轮传动的方法监测螺栓松动。当螺栓紧固时,金属膜完全覆盖贴在齿轮结构上的电子标签,读写器无法接收到电子标签的信号。当螺栓松动时,电子标签随齿轮转动,因此不能被金属膜完全覆盖。读写器受控发出微波查询信号,电子标签收到读写器的查询信号后,将此信号与电子标签中的数据信息整合并反馈给读写器,从而实现松动螺栓位置的定位。建立螺栓松动监测模拟试验装置,试验研究接收信号强度与螺栓松紧程度的关系。试验结果表明,读写器能否接收到电子标签的信号与螺栓松紧程度有较大相关性。该方法为罐道螺栓联接结构中螺栓松动监测提供了一种革新方法。
关 键 词: 测试计量仪器;罐道结构;射频识别;螺栓松动;齿轮传动机构
Title: Bolts loosening monitoring system based on RFID sensing technology
Author: CUI Xingmei, WU Jian
Organization: School of Mechanical Engineering, Nanjing University of Science & Technology
Abstract: As bolt loosening of the cage guide structure in the coal mine is easy to cause accident, we proposed a method to detect bolts loosening of guide structure based on radio frequency identification (RFID). The bolt gearing mechanism is designed to monitor bolt loosening by gears’ rotation caused by bolt looseness. When bolt is fastened, tag is covered by metal film completely and signal cannot be received by reader. When tag is loosed, it would rotate with rotation of big gear. As a result, the tag cannot be completely covered by metal film. The RFID tag transmits data over the air in response to interrogation by a RFID reader, then the loose location is found. The experiment device is set up and serial experiments are carried out. The experiment results show that the received energy of the tag has good correlation with the bolt tightness. This method has good potential application for the monitoring of bolt loosening.
Key words: measuring and testing instrument; cage guide structure; radio frequency identification; bolt loosening; gearing mechanism
发表期数: 2016年7月第14期
引用格式: 崔兴梅,吴键. 基于RFID感知技术的螺栓松动监测系统[J]. 中国科技论文在线精品论文,2016,9(14):1415-1420.
 
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