臺灣博碩士論文加值系統

隨著科技的發達，開發地下建設已是常態。然而，地下環境的密閉空間會產生沼氣，進而造成沼氣致死的工安意外。因此，如何預防成為了一項重要的議題。本論文之目的在於做出一款高便利性、簡易操作及可以快速地得知是否可以讓人員工作的沼氣感測系統。我們將自製的手機軟體作為主控，利用藍芽讓手機與微控制器溝通，透過微控制器對周邊的感測器下達指令，得到當前環境的沼氣資訊，再利用藍芽的無線傳輸回傳數據至手機。在進入地下空間之前，先讓機器幫你檢測環境是否具有危害，使得施工前的安全檢測可以更完善。一旦檢測到有危險時，裝置上的警示器便會作響，提示你底下的危害，以減少工安意外的發生。另外手機軟體會將當前收集到的環境數值、時間及當下偵測的地點，透過網路上傳至雲端紀錄。其他使用者更可以透過網頁去瀏覽該地區的沼氣濃度變化。

With the advance of science and technology, the development of underground constructions has already become the norm. However, biogas produces in the closed space of the underground environment, which in turn leads to industrial accidents and casualties. Therefore, how to avoid such tragedies has become an important issue. This thesis aims to make a convenient, user-friendly biogas sensing system, which provides a fast, accurate, and reliable measurement for the safety of personnel on-site. The self-made mobile application serves as the main control unit, and Bluetooth as wireless communication between the mobile phone and the microcontroller, which gives commands to the surrounding sensor to get the current environmental information about biogas and then transmits data back to the phone wirelessly. Before descending into the underground space, the biogas sensor helps to detect whether the environment is harmful so that the safety inspections can be more satisfactory. If there is a potential danger, the alarm on the device will ring out to alert you in advance and thus reduce the occurrence of industrial accidents. Besides, the mobile application will upload the environmental data collected, including figures, time, and location to the cloud on the Internet. In this way, other users can view the changes in biogas concentration in the area by browsing through the web pages as well.

摘要......i
Abstract......ii
誌謝......iii
目錄......iv
表目錄......vii
圖目錄......viii
第一章 緒論......1
1.1 前言......1
1.2 研究動機......1
1.3 創新與實用性......2
1.4 論文結構......2
第二章 相關文獻探討......3
第三章 背景知識及元件介紹......9
3.1 Android （安卓系統）......9
3.1.1 Android Studio環境開發......10
3.2 ThingSpeak 物聯網雲端平台......12
3.3 SQLite 資料庫......16
3.4 HT66F2390微控制器......17
3.4.1 AD轉換器......17
3.4.2 UART 異步收發模組......18
3.5 HC-05 藍芽模組......19
3.6 MQ-9氣體感測模組......20
3.6.1 沼氣......22
3.7 BS816A-1 觸控模組......23
第四章 系統流程及功能設計......24
4.1 硬體架構設計......24
4.2 硬體系統流程......25
4.3 軟體架構設計......27
4.4 軟體系統流程......27
4.4.1 手機軟體......29
第五章 系統測試......35
5.1 作品外觀......35
5.2 作品測試......36
5.3 實地測試......40
5.3.1 大排水溝實測......40
5.3.2 水溝實測......41
5.3.3 化糞池實測......42
第六章 結論......44
參考文獻......45
Extended Abstract......48

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