應用於客控式無線室內定位系統之多波束標靶機與智慧手機定位軟體設計

Design of Multi-Beam Pilot Transmitter and Intelligent Mobile Positioning Software for User-Autonomous Wireless Indoor Positioning System

吳柏明(Po-Min Wu)

指導教授 ： 張盛富

國立中正大學/工學院/電機工程學系/碩士(2013年)

摘要

本論文設計「客控式無線室內定位系統」，以智慧型手機接收定位標靶機所發射的訊號，並以角度定位演算法達成客控式的定位效果。此定位機制只有使用者知道自己的位置，標靶機只發送不接收，以確保使用者行蹤保密。本系統含標靶機和手機定位軟體，其中標靶機由 (1) 1×4微帶天線陣列，(2)波束形成器，(3) 波束合成控制器，(4)Wi-Fi發射電路等四種電路組成。每個標靶機發送七個波束，以智慧型手機量測結果在2.45 GHz之七個波束方向分別為51o、63o、78o、90o、102o、117o、129o。手機軟體部分含 (1)自動化場型量測APP程式與LabView儀控程式，(2)角度偵測演算法，(3)室內一維量測APP程式，(4)室內二維量測APP程式，(5)室內二維即時動態無線定位APP程式等共五組程式所組成，應用此軟體群以手機完成標靶機之場型量測及一、二維定位效果量測。透過兩組定位標靶機系統之架設，於6.5 m×6.8 m的空曠環境完成一維角度量測，實驗結果顯示最大角度誤差為4.5o，方均根誤差為1.4o。於6 m×10 m模擬居家環境，實驗結果顯示方均根定位誤差為20.8 cm，定位量測精確度於80%機率下之誤差幅度為約為26 cm。

關鍵字

客控式無線室內定位系統 ； 多波束形成器 ； 室內定位 ； 智慧型手機定位

並列摘要

This thesis presents a user-autonomous wireless indoor positioning system, which includes a multi-beam pilot transmitter and the angulation positioning software on smart phone. The angulation positioning algorithm in smart phone determines the user location by processing the received signals from the pilot transmitter. Therefore, the user location information is only known by the user, which ensures the user’s privacy. The pilot transmitter is composed of 1×4 patch antenna array, beamformer, beamformer controller, and Wi-Fi transmitter, which regularly transmits seven 2.45 GHz beams at 51o, 63o, 78o, 90o, 102o, 117o, and 129o, respectively. The positioning software contains five software modules: automatically beam pattern measurement, angle calculation algorithm, one-dimensional positioning, two-dimensional positioning, and real-time dynamic wireless positioning programs. The one-dimensional positioning experiment was carried out on a 6.5×6.8 m2 open space The maximum angle error of 4.5o and root-mean-square error of 1.4o were obtained. The two-dimensional positioning experiment was performed in a 6×10×3.5 m3 household room. The root-mean-square distance error is 20.8 cm and the distance accuracy with 80% assurance probability is 26 cm. The details of the circuit design, positioning algorithm, and experiment are described.

並列關鍵字

User-Autonomous Wireless Indoor Positioning System ； Multi-Beam Beamformer ； Indoor Positioning ； Intelligent Mobile Positioning

參考文獻

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