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研究生: 黃永瀚
Huang, Yung-Han
論文名稱: 基於RSS定位之嵌入式系統之設計與實現
Design and Implementation of an Embedded System for RSS-based Localization
指導教授: 廖德祿
Liao, Teh-Lu
學位類別: 碩士
Master
系所名稱: 工學院 - 工程科學系
Department of Engineering Science
論文出版年: 2013
畢業學年度: 101
語文別: 中文
論文頁數: 50
中文關鍵詞: 無線定位嵌入式系統
外文關鍵詞: Wireless positioning, Embedded system
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  • 近年無線定位技術引起廣泛的討論。其中以容易實現的RSS為最常見的方式。然而在RSS方法中,訊號強度的擾動是嚴重的問題,往往造成嚴重的定位點跳動。本篇論文中提出了一種可自主定位的嵌入式網路系統,利用延時載波技術來減少接收強度的擾動,達成2σ為6cm的高精確度以及最大誤差小於0.8公尺的結果。

    Wireless positioning systems have become very popular in recent years, and the RSS method is very common since it can be easily implemented. However, the RSS fluctuation is a very important issue needing to be considered and taken into account. In this thesis, we propose a low cost autonomous positioning embedded system with the Prolonged Time Carrier method to suppress the fluctuation of RSS. A 2σ of 6cm is achieved, with a maximum error of less than 0.8m.

    Contents 摘要 II Abstract III 誌謝 IV Contents V List of Figures VII List of Tables X Chapter 1 Introduction 1 Chapter 2 Background 3 2.1 Positioning Method 3 2.1.1 TOA Method 3 2.1.2 AOA Method 4 2.1.3 TDOA Method 5 2.1.4 RSS Method 6 2.2 Received Signal Strength Indicator 6 3.1 System Architecture Overview 8 3.2 Mobile Station (MS) 9 3.2.1 Power Supply Unit 12 3.2.2 Microcontroller 14 3.2.3 RF-module TRM-433-LT 16 3.2.4 Analog-to-Digital Converter 18 3.2.5 Half-Duplex Matching Circuit 21 3.2.6 LCD Module 24 3.2.7 2.4GHz RF module nRF24L01 25 3.3 Base Station 27 3.4 Data Acquisition Receiver 29 Chapter 4 System Process 30 4.1 System Architecture 30 4.2 Network System 32 4.3 Prolonged time Carrier 34 4.4 Geometry Location 35 Chapter 5 Path Loss & Positioning Experiment 37 5.1Path Loss Experiment 37 5.2 Positioning Experiment 41 5.2.1 Experiment Description 41 5.2.2 Experiment Result 43 Chapter 6 Conclusion and Future Work 48 References 49

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