近年來室內定位研究一直是一個很熱門的研究話題，雖然全球衛星定位系統(GPS)已經成熟，但卻無法用於室內定位，因為建築物遮蔽的影響，精確度會大大降低，這也讓室內定位研究還有很大的研究空間。有別於傳統採用多節點傳輸訊號的判定方式，本研究設計一個基於藍芽低功耗(Bluetooth Low Energy)的單節點多指向性系統，這個系統搭載了三個面向不同方向的藍芽模組，利用銅箔膠帶的遮蔽效應，將裝載全向性天線的藍芽模組輻射各自限制在單一方向，讓三個模組在同時廣播的時候訊號強度會有差異性，利用這個差異性，我們嘗試一些方法判斷使用者目前位於單節點多指向系統的哪一個方向，最後將方法實做到APP上去處理收到的訊號並將判斷結果顯示在智慧型裝置上告知使用者目前位於目的地哪一個方向。

In recent years, indoor positioning research has been a very popular research topic. Although the global satellite positioning system (GPS) has matured, it cannot use for indoor positioning. Due to the building’s shielding, the accuracy will reduce. That is a reason why indoor positioning still has a lot of research potential. Different from the traditional determination method of multi-node transmission signals, we design a single-node multi-directional system based on Bluetooth Low Energy. This system is equipped with three Bluetooth modules facing different directions. By using the shielding effect of copper foil tape, we limited the radiation of the three BLE omnidirectional modules to a single direction respectively, so that the signal strength of the three modules will be different when broadcasting at the same time. Using this difference, we try some methods to determine which direction the user is currently located in the single-node multi-pointing system, and finally implement on the APP to process the received signal and display the judgment result on the smart device to inform the user where the user is currently located.

摘要--------------------------------i
Abstract--------------------------ii
致謝------------------------------iii
目錄-------------------------------iv
圖目錄------------------------------v
表目錄----------------------------vii
第1章 緒論--------------------------1
1.1 研究動機------------------------1
1.2 研究目標------------------------1
1.3 研究方法------------------------2
1.4 論文架構------------------------4
第2章 相關研究----------------------5
第3章 技術背景----------------------9
3.1 Android------------------------9
3.2 低功耗藍芽介紹------------------11
3.2.1 廣播及掃瞄-------------------17
3.2.2 UUID------------------------20
3.2.3 接收訊號強度指示(RSSI)-------21
第4章 單節點用戶導引技術------------22
4.1 單節點用戶導引系統架構----------22
4.1.1 系統硬體架構-----------------22
4.1.2 單節點用戶導引概念-----------24
4.2 單節點多指向信標系統設計--------27
4.2.1 藍芽低功率多指向系統設計------27
4.2.2 信標系統參數及傳輸控制設計----31
4.3 用戶端導航系統設計-------------36
4.3.1 信標訊號量測模組-------------36
4.3.2 信標訊號處理模組-------------40
4.3.3 導航方向判定演算法-----------44
4.3.4 用戶導航介面設計-------------54
第5章 系統成果分析-----------------57
5.1 實驗設備----------------------57
5.2 系統執行結果------------------59
第6章 結論------------------------63
參考資料--------------------------64

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