臺灣博碩士論文加值系統

近年來，隨著物聯網的蓬勃發展，藍牙技術在無線通訊領域扮演著重要的角色。尤其是藍牙低功耗(Bluetooth Low Energy; BLE)憑藉著其低功耗和低成本的特點，成為眾多生活應用的首選，例如:智能家居、健康檢測、運動追蹤和智能電子產品等。這些應用為我們的日常生活帶來了許多的方便和便利。
然而，藍牙低功耗的資料傳輸受限於 single hop 的限制，與其他協定相比所支援的拓樸環境，僅限於 point-to-point 或是星狀拓樸。雖然在 2017 年，Bluetooth SIG 提出了 Mesh 架構，來改善藍牙低功耗的拓樸限制，但是藍牙網狀網路各個節點間都只能在 3 個廣告通道上傳輸，容易受到封包的碰撞與干擾。
因此，本篇論文想透過 BLE 跳頻通信技術的優勢，使用 37 個資料通道來達到大量的數據傳輸；同時，透過在藍牙設備上賦予 Master 與 Slave ，將這些藍牙設備連接起來，來打破網路覆蓋範圍的限制，形成一個大型的樹狀網路結構，並利用Named Data Networking(NDN)[2] 架構與機制，來讓藍牙設備擁有 Routing 與 Forwarding 功效，實現數據的儲存與轉發，來提高拓樸大小與密度。

In recent years, with the rapid development of the Internet of Things (IoT), Bluetooth technology has played a crucial role in wireless communication. In particular, Bluetooth Low Energy (BLE) has become a preferred choice for numerous life applications due to its low power consumption and cost-effectiveness. These applications, such as smart homes, health monitoring, fitness tracking, and smart electronic devices, have brought us great convenience and ease.
However, the data transmission of BLE is limited by the single-hop constraint and supports only point-to-point or star topologies compared to other protocols. Although the Bluetooth Special Interest Group (SIG) introduced the Mesh framework in 2017 to address the limitations of BLE, the transmission between nodes in a Bluetooth mesh network is limited to three broadcast channels, which can be susceptible to packet collisions and interference.
Therefore, this paper proposes a solution leveraging the advantages of BLE frequency hopping communication technology and utilizing 37 data channels to achieve extensive data transmission. Additionally, by assigning the roles of Master and Slave to Bluetooth devices, the network coverage limitations can be overcome, forming a large-scale tree-like network structure. Moreover, the Named Data Networking (NDN) framework and mechanisms are employed to equip Bluetooth devices with routing and forwarding capabilities, enabling data storage and forwarding to enhance the size and density of the network topology.

致謝 i
摘要 ii
Abstract iii
目錄 iv
圖目錄 v
表目錄 vii
第一章 緒論 1
1.1 前言 1
1.2 研究動機與目的 3
1.3 論文架構 4
第二章 背景及文獻探討 5
2.1 藍牙低功耗(BLE)簡介 5
2.1.1 BLE Protocol Stack 6
2.2 BLE數據傳輸 9
2.2.1 Advertising Channel 9
2.2.2 BLE 連接建立 10
2.2.3 Data Channel 11
2.3 文獻探討 12
第三章 系統架構與運作流程 14
3.1 樹狀網路系統設計與實現 15
3.1.1 拓樸建立 15
3.1.2 Name Advertising 20
3.1.3 Data Retrieval 21
3.2 控制層與資料層 22
第四章 實驗設計與成果 26
4.1 硬體設備 26
4.2 Single hop 實驗 27
4.2.1 實驗流程與環境設定 27
4.2.2 實驗結果分析 29
4.3 Multi-hops 實驗 32
4.3.1 實驗流程與環境設定 32
4.3.2 實驗結果分析 34
第五章 結論 38
5.1 結論 38
5.2 未來展望 38
參考文獻 39

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