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理學院
資訊工程學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73912
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search.filters.author.鍾尚值
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search.filters.author.Chung, Shang-Chih
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search.filters.subject.Energy Efficiency
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search.filters.subject.Industrial Internet of Things
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search.filters.subject.Real Time
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search.filters.subject.即時性
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search.filters.subject.工業物聯網
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2021
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應用於工業物聯網的即時節能端對端訊息傳輸架構
(
2021
)
鍾尚值
;
Chung, Shang-Chih
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工業物聯網(IIoT)應用需要一個可靠、即時和節能的訊息傳遞服務。為了節省每個嵌入式 IIoT 儀器的能源消耗,從而延長傳感器的使用壽命,最好的辦法是沒有冗餘的訊息交換。本論文分析了 MQTT 訊息傳輸協議和端到端訊息傳輸之間的利弊,表明使用端到端訊息傳輸來提高可靠性時,可能存在兩個問題,即可能造成能源浪費和產生冗餘訊息。對於每一個問題,都提出了一個解決方案,並只有在必要時才進行重傳。因此,本論文提出了一個名為 E4 的訊息傳遞架構,以及它在 Mosquitto(一種開源的 MQTT 實現)上的實現。透過實際應用場景的實驗,證實了該設計的可行性。E4 訊息傳遞架構不僅提高了傳輸的可靠性,還保有傳輸的即時性。此外,因研究結果顯示了 E4 訊息傳遞架構能有效減少不必要的重傳,從而減少能源浪費,故所提出的架構適用於有節能與即時需求的 IIoT 應用。
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