基于SAW RFID技术的电力管线快速定位

目前城市地下电力管线错综复杂，迫切需要一种对电力管线快速标识定位的方法。该文提出了一种基于声表面波射频识别（SAW RFID）技术的定位方法，利用SAW RFID的强穿透能力，将SAW标签间隔埋入地下管线上方构造位置网格，与全球定位系统(GPS)/北斗定位技术融合形成快速定位方案；同时，为了提高地下标签的探测距离，研究设计了单相单向换能器（SPUDT），以及适合埋在地下介质中的标签天线；最后完成了实际地下土壤环境的场景测试，验证了SAW RFID地下电力管线定位方法的性能及优势。

Rapid Positioning of Power Pipeline Based on SAW RFID Technology

At present, the underground electric power pipelines in the city are complex and complicated, and there is an urgent need for a method to quickly identify and locate the power lines. A positioning method based on SAW radio frequency identification (SAW RFID) is presented in this paper. With the strong penetration of SAW RFID, SAW tags are buried in the underground pipeline at intervals to form a position grid, and integrated with GPS\\Beidou positioning technology to form a fast positioning scheme. Meanwhile, in order to increase the detection range of underground tags, the single phase unidirectional transducer (SPUDT) and tag antenna suitable for being buried in the underground medium have been designed. Finally, the scene test of actual underground soil environment is completed. The performance and advantages of SAW RFID for applications to the underground power pipeline positioning have been verified.