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研究生: 余承恩
Yu, Cheng-En
論文名稱: 適用於智慧校園之永續 LoRaWAN 物聯網架構
A Sustainable LoRaWAN IoT Ecosystem Architecture for Smart Campus
指導教授: 王超
Wang, Chao
口試委員: 賀耀華
Ho, Yao-Hua
郭桐惟
Kuo, Tung-Wei
王超
Wang, Chao
口試日期: 2021/10/22
學位類別: 碩士
Master
系所名稱: 資訊工程學系
Department of Computer Science and Information Engineering
論文出版年: 2021
畢業學年度: 109
語文別: 英文
論文頁數: 38
中文關鍵詞: 智慧校園低功耗廣域網路容錯節能
英文關鍵詞: Smart Campus, Low-Power Wide-Area Network, Fault Tolerance, Energy Efficiency
研究方法: 實驗設計法
DOI URL: http://doi.org/10.6345/NTNU202101737
論文種類: 學術論文
相關次數: 點閱:157下載:5
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  • 物聯網 (IoT) 技術是智慧校園應用的關鍵,所需的物聯網基礎設施必須具備容錯和 節能,才能為此類應用提供持續服務。在低功耗廣域網路 (LPWAN) 技術中,LoRaWAN 是滿 足要求的最佳候選。本論文對 LoRaWAN 智慧校園網路架構進行了研究。本論文在LoRaWAN網 路下使用多個閘道器,採用主從備份,避免單點故障,增加網路的可靠性。同時,物聯網終 端設備可以選擇合適的擴頻因子,實現更高的能效。本文提出的架構是在現有的 LoRaWAN 網 路開源組件 ChirpStack 上實現的。此設計在台灣國立台灣師範大學 (NTNU) 進行了實證 評估,實驗結果表明,所提出的網路架構可以容忍 LoRaWAN 閘道器故障,同時節省每個 LoRa 終端設備的能源消耗。

    Internet-of-Things (IoT) technology is key for smart-campus applications, and the needed IoT infrastructure must be both fault-tolerant and power-saving to offer a continuous service for such applications. Among Low-Power Wide-Area Network (LPWAN) technologies, LoRaWAN is a promising candidate to meet the requirements. This thesis presents a study for a LoRaWAN smart-campus networking architecture. This thesis uses multiple gateways under the LoRaWAN network to adopt the primary/backup approach to avoid a single point of failure and increase the reliability of the network. At the same time, the IoT end device can select appropriate spreading factor to achieve higher energy efficiency. The architecture proposed in this thesis is implemented on the existing LoRaWAN network open source component called ChirpStack. The implementation is empirically evaluated at at National Taiwan Normal University (NTNU) in Taiwan., and the experiment results suggest that the proposed networking architecture may tolerate LoRaWAN gateway failure while saving energy spent at each LoRa end device.

    Chapter 1 Introduction 1 Chapter 2 Related Work 4 Chapter 3 System Model and Problem Formulation 8 3.1 An Overview of LoRa and LoRaWAN 8 3.2 Problem Formulation 10 Chapter 4 The Proposed Networking Architecture 12 4.1 Configuration mode 16 4.2 Normal mode 18 4.3 Failover mode 19 4.4 Failback mode 20 4.5 Implementation 20 Chapter 5 Performance Evaluation 23 5.1 Hardware used 23 5.2 Testbed 24 5.3 Empirical Evaluation 25 Chapter 6 Conclusion and Future Work 34 6.1 Future Work 34 References 36 Vita 38

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