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電子科技大學UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA碩士學位論文MASTER THESIS 論文題目 巷道內(nèi)人員高精度定位技術研究 學科專業(yè)信號與信息處理201121020409柯彬?qū)W號作者姓名指導教師陳祝明教授 分類號密級注 1UDC學位論文巷道內(nèi)人員高精度定位技術研究(題名和副題名)柯 彬(作者姓名)指導教師陳祝明教授成都電子科技大學(姓名、職稱、單位名稱)申請學位級別碩士學科專業(yè)信號與信息處理提交論文日期 2014年 3月論文答辯日期 2014年 5月學位授予單位和日期電子科技大學2014年 6月答辯委員會主席評閱人注 1:注明《國際十進分類法 UDC》的類號。 STUDY ON HIGH ACCURACY PERSONALPOSITIONING TECHNOLOGY IN MINE TUNNELA Master Thesis Submitted toUniversity of Electronic Science and Technology of ChinaMajor:Signal and Information Processing Ke Bin Author:Advisor: School : Prof. Chen Zhuming School of Electronic Engineering 獨創(chuàng)性聲明本人聲明所呈交的學位論文是本人在導師指導下進行的研究工作及取得的研究成果。據(jù)我所知,除了文中特別加以標注和致謝的地方外,論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果,也不包含為獲得電子科技大學或其它教育機構的學位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻均已在論文中作了明確的說明并表示謝意。作者簽名:日期:年月日論文使用授權本學位論文作者完全了解電子科技大學有關保留、使用學位論文的規(guī)定,有權保留并向國家有關部門或機構送交論文的復印件和磁盤,允許論文被查閱和借閱。本人授權電子科技大學可以將學位論文的全部或部分內(nèi)容編入有關數(shù)據(jù)庫進行檢索,可以采用影印、縮印或掃描等復制手段保存、匯編學位論文。(保密的學位論文在解密后應遵守此規(guī)定)作者簽名:導師簽名:日期:年月日 摘要摘要礦井人員高精度定位是井下人員定位系統(tǒng)的發(fā)展趨勢,這對救援和人員管理具有重要的意義。但是由于井下巷道空間有限,環(huán)境復雜,電磁波傳播多徑衰落現(xiàn)象嚴重,基于 RFID、RSSI等常規(guī)定位系統(tǒng)無法達到高精度定位的要求,因此必須尋求新的定位體制。本文針對礦井特點,對井下人員高精度定位技術展開研究。首先討論了無線定位的基本原理和機制,研究了礦井人員定位的特點。以 AT86RF233芯片為核心,設計完成一套基于頻率多跳的相位差測距技術的井下人員高精度定位系統(tǒng)。本文從物聯(lián)網(wǎng)的角度出發(fā),對系統(tǒng)的各個層面進行了詳細設計,并且通過實驗驗證了系統(tǒng)的高精度定位性能。然而,當同一區(qū)域內(nèi)人員數(shù)目增多后,基于相位差的定位系統(tǒng)的定位輪詢時間將會增大到數(shù)十秒量級,定位的實時性顯著下降。為了解決此問題,本文對礦井高精度人員定位技術進行了進一步的研究,從無線電定位基本原理出發(fā),結合巷道特點,提出了基于線性調(diào)頻連續(xù)波的礦井人員高精度定位方案。本文詳細介紹了該方案的具體構架,信號處理流程,參數(shù)選擇等。通過對礦井巷道中電磁波傳播特性建模,仿真驗證了系統(tǒng)的性能。結合實際應用,設計完成原理驗證樣機,給出了詳細的設計框圖及工作時序圖,并通過開展外場實驗驗證了其高精度、高動態(tài)的定位性能。綜合本文研究結果表明,基于相位差和基于線性調(diào)頻連續(xù)波的礦井人員定位系統(tǒng)定位精度均能夠滿足礦井巷道內(nèi)人員高精度定位的要求。關鍵詞:礦井巷道,高精度,人員定位,相位差,線性調(diào)頻I ABSTRACTABSTRACTHigh accuracy positioning for miner is the future of positioning system in minetunnel. It is extremely significant for coal mine accident rescue and daily personnelmanagement. At present, general coal mine personnel positioning system, which isbased on RFID or RSSI technology, can’t meet the requirements for highprecisionlocation due to the plex underground environment, narrow, dark, wet and full ofpipelines, causing serious phenomenon of radio wave multipath fading. So we have tofigure out a new positioning strategy to achieve the high accuracy positioningunderground.In this paper, firstly, we discuss the basic principle and theory of wirelesspositioning. Then we analyze the characteristics of positioning in mine tunnelunderground. Secondly, we design a new set of personal positioning system, which isbased on the phase difference ranging technology using AT86RF233 as core, in minetunnel. We carry all levels of the system on the detailed design, from the perspective ofthe internet of things. Finally, we verify the system’s performance of high precisionpositioning by experiment.Also, consideration of the characteristics of the mine tunnel, we originally present ahigh precision personal positioning scheme in mine tunnel based on the linear frequencymodulated continuous waveform to achieve a better realtime positioning performance.The paper gives a detailed description on the structure of scheme, signal processing andparameter selection. Finally, we use Matlab to verify the performance of the systemwith the model of electromagnetic wave propagation in mine tunnel. Finally, weplete the detailed design of the whole system by giving block diagrams andsequence diagrams according to the actual demand.The results of simulation and experiment illustrate that the system based on thephase difference ranging and the linear frequency modulation continuous wave canreach the requirement of high accuracy positioning for miners.Keywords: mine tunnel, high accuracy, personal positioning, phase difference ranging,LFMCWII 目錄目錄第一章緒論 .................................................................................................................. 1................................................................................................ 1................................................................................................ 2.................................................................................... 4第二章礦井人員定位技術基礎 .................................................................................... 6................................................................................ 6........................................... 6................................................... 7................................................................................................ 7........................................................................................... 8....................................................................................... 8....................................................................................... 9......................................................................................... 10......................................................................................... 10...........................................................................................11 RFID的礦井定位技術...........................................................11 RSSI的礦井定位技術........................................................... 12 TOA/TDOA的礦井定位技術............................................... 13.......................................................................................................... 14第三章礦井人員高精度定位技術研究 ...................................................................... 15.......................................