用於戶外農業物聯網環境下之LoRa閘通道與長距離節電傳輸方法設計與實作

A LoRa gateway and Long Distance Power Saving Transmission Control for Agricultural Outdoor IoT Environment: Design and Implementation

張鶴騰(Hoteng Chang)

指導教授 ： 龔旭陽

國立屏東科技大學/管理學院/資訊管理系所/碩士(2021年)

https://doi.org/10.6346/NPUST202100206

摘要

針對戶外農業物聯網環境下，本論文提出適用於戶外農業物聯網環境下之LoRa閘通道與長距離節電傳輸方法（A LoRa gateway and Long Distance Power Saving Transmission Control for Agricultural Outdoor IoT Environment）。由於應用於戶外農業環境之一般通訊網路，只能依靠太陽能或風力發電等方式取得有限電力，因此本論文設計結合LoRa與 NB-IoT之閘通道以及傳輸控制方法，能提高網路覆蓋範圍，並能動態配置傳遞節點以獲得最為節電的整體網路傳輸路徑。本論文主要貢獻包括：(1) 改善單一LoRa網路的有效覆蓋範圍，(2) 可降低農業物聯網系統傳輸電力損耗並延長所有節點的存活時間。最後我們於實際場域驗證所提出的LoRa通訊閘通道與傳輸控制方法，可以比傳統方法有更長之傳輸距離。

關鍵字

物聯網 ； 閘通道 ； LPWAN ； LoRa ； 長距離 ； 節電 ； 傳輸控制 ； 農業戶外環境

並列摘要

This paper proposed a LoRa gateway architecture and long distance power saving transmission control method, which is suitable for the outdoor agricultural IoT environment. Since the general communication network used in the outdoor agricultural environment can only obtain limited power by means of solar or wind power generation. The fundamental idea of this paper was to combines the gate channel of LoRa and NB-IoT and the transmission control method, which can increase the network coverage and improve the network coverage. The transfer node can be dynamically configured to obtain the most power-saving overall network transmission path. The main contributions of this paper include: (1) improving the effective coverage of a single LoRa network, and (2) reducing the transmission power loss of the agricultural Internet of Things system and extending the survival time of all nodes. Finally, we verified the performance of the proposed LoRa communication gate channel and transmission control method, which can have a longer transmission distance than the traditional method in the actual field.

並列關鍵字

Internet of Things ； LPWAN ； LoRa ； Gateway ； Long Distance ； Power Saving ； Transmission Control ； Agricultural Outdoor Environment

參考文獻

[1] K. Ashton, “That ’internet of things’ thing in the real world, things matter more than ideas,” RFID Journal, June 2009, http://www.rfidjournal.com/article/print/4986 [Accessed on: 2012-07-30].

[2] Beser, Nurettin Burcak. "Operating cable modems in a low power mode." U.S. Patent No. 7,389,528. 17 June 2008.

[3] LoRa Modulation Basics (PDF). Semtech. [2020-02-05]

[4] Ramon Sanchez-Iborra; Jesus Sanchez-Gomez; Juan Ballesta-Viñas; Maria-Dolores Cano; Antonio F. Skarmeta. Performance Evaluation of LoRa Considering Scenario Conditions. Sensors. 2018, 18 (3): 772. PMC 5876541. PMID 29510524. doi:10.3390/s18030772

[5] NarrowBand – Internet of Things (NB-IoT)