随钻电磁中继转发双向传输技术研究  

Research on electromagnetic relay forwarding bidirectional transmission technology while drilling

作　　者：李世银 张博文 张冠杰 张志 祁华艳 王勃 LI Shiyin;ZHANG Bowen;ZHANG Guanjie;ZHANG Zhi;QI Huayan;WANG Bo(School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221116,China;Yunlong Lake Laboratory of Deep Underground Science and Engineering,Xuzhou 221116,China)

机构地区：[1]中国矿业大学信息与控制工程学院,江苏徐州221116 [2]深地科学与工程云龙湖实验室,江苏徐州221116

出　　处：《通信学报》2024年第10期107-115,共9页Journal on Communications

基　　金：国家自然科学基金资助项目(No.62371451);深地科学与工程云龙湖实验室基金资助项目(No.109023005)。

摘　　要：针对国内随钻系统受限于单向传输、可靠性差和传输速率低等问题,提出了一种基于中继转发的随钻电磁双向传输方案。通过对随钻传输信号进行实测,分析了随钻杆无线传输的信道特性。设计了一种基于中继转发的双向通信协议,实现了随钻信号传输距离与稳定性的有效提升。搭建了由现场可编程门阵列、放大电路、模数转换器、数模转换器和天线等模块组成的随钻样机,并对其进行了性能测试。实测结果表明,所设计方案实现了电磁波信号的中继接力双向可靠传输,单跳传输距离达30 m,中继传输距离100 m以上;同时该方案传输速率在kbit/s级别,比传统单向随钻系统提高了一个数量级。To solve the issues of unidirectional transmission,poor reliability,and low transmission rate in domestic drilling systems,a relay-based bidirectional electromagnetic transmission solution while drilling was proposed.Through field measurements of drilling transmission signals,the channel characteristics of wireless transmission through drill rods were depicted.A relay-based bidirectional communication protocol was designed,effectively enhancing the transmission distance and stability of drilling signals.A drilling prototype,composed of field programmable gate array(FPGA),amplification circuit,analog-to-digital converter(ADC),digital-to-analog converter(DAC),and antenna,was constructed and tested.Field test results demonstrate that the proposed scheme achieves reliable relay-assisted bidirectional transmission of electromagnetic signals,with a single-hop transmission distance of 30 m and relay transmission distance exceeding 100 m.Concurrently,the transmission rate of this scheme is at the kbit/s level,an order of magnitude improvement over traditional unidirectional drilling systems.

关 键 词：随钻电磁测量 中继转发 双向传输 随钻样机 

分 类 号：TN92[电子电信—通信与信息系统]