- 學位論文
結合LoRa與樹莓派之通訊系統
A communication system combining LoRa and Raspberry Pi
摘要
隨著無線通訊技術越來越發達，市面上已經有許多相關技術趨近成熟，但每項技術都會有各自的強項與較為弱項的部分。以藍牙(Bluetooth)來講，目前的藍牙4.0理論最大傳輸距離在50公尺，在有阻擋物或是干擾時可能還會更低，但傳輸速度較快。本研究利用樹莓派(Raspberry Pi)結合遠距離無線通訊(Long Range, LoRa)來實現長距離、低成本、低功耗之通訊技術。論文架構採用LoRa無線通訊模組 及 Raspberry Pi 3，建構出區域性無線通訊系統。本研究將會以鄉下、郊區、市區等環境因素，配合不同的距離(Distance)、展頻因數(SF)進一步分析在什麼情形下可以建立一個封包遺失率較低的通訊系統。
關鍵字
none並列摘要
With the development of wireless communication technology, many related technologies have matured on the market, but each technology has its own strengths and weaknesses. In terms of Bluetooth, theoretical maximum transmission distance for the current Bluetooth 4.0 is 50 meters but may be lower when there is a barrier or interference. In this thesis, the Raspberry Pi is used combined with long-range wireless communication to achieve long-distance, low-cost, low-power communication technology. The thesis structure uses LoRa unlimited communication module and Raspberry Pi 3, Construct a regional wireless communication system. This thesis had discussed environmental factors like countryside, rural, and urban with different distances and spreading factor to understand how to build a low package loss ratio communication system.