臺灣博碩士論文加值系統

無線式汽車方向盤轉角量測裝置是在汽車方向盤裝設三軸加速度感測器，方向盤轉動後加速度感測器因重力影響使三軸方向加速度產生變化，由單晶片微處理器讀取三軸方向加速度資訊，
計算出汽車方向盤的轉動角度，再利用無線收發電路將計算出之汽車方向盤角度資訊無線傳輸至電子控制單元，為無接觸式的量測方式，且以無線方式傳輸可免去接線的不便性，可更容易實現使用電子控制單元控制依方向盤的轉動角度自動驅動汽車方向燈的系統或停車導引影像輔助的系統。



關鍵字：三軸加速度感測器、電子控制單元、汽車方向盤

A wireless steering wheel angle measuring device is used to install the triaxial accelerometers on the automobile steering wheel. After the steering wheel rotate, the triaxial acceleration of the acceleration sensor will changes due to the influence of gravity. The triaxial direction acceleration information can be got by the microprocessor to calculate the automobile steering wheel the rotation angle. The automobile steering wheel angle information will use the wireless transmission to the electronic control unit by the wireless receiving and dispatching electric circuit. The wireless transmission is the non-contact way to avoid the inconvenience of the wiring transmission. The electronic control unit will easily implement the automatic turn signal light system in the automobile or the parking guiding system using the image according to the steering wheel rotation angle.




Keywords: Triaxial Accelerometers, Electronic Control Unit, Automobile Steering Wheel

中文摘要.................................................I
英文摘要.................................................II
誌謝.....................................................III
目錄.....................................................IV
表目錄...................................................VI
圖目錄...................................................VII
第一章、 緒論.............................................1
第二章、 研究方法.........................................2
2.1 擷取三軸加速度值....................................2
2.2 計算水平面傾斜角時之重力加速度........................2
2.3 計算汽車方向盤的轉動角度和轉動圈數....................4
第三章、系統架構..........................................6
3.1 儀器設備...........................................6
3.1.1 何謂Arduino......................................8
3.1.2 Arduino的簡介...................................8
3.1.3 Arduino的特色...................................9
3.1.4 Arduino的功能與應用..............................10
3.1.5 MMA7361三軸加速度感測器的測試.....................11
3.1.6 MMA7361三軸加速度感測器優點與參數..................12
3.2 Arduino 實驗代碼.....................................15
第四章、結果分析與討論......................................17
4.1 方向盤角度0度時的加速度ADC數值........................17
4.2 方向盤角度90度時的加速度ADC數值.......................18
4.3 方向盤角度180度時的加速度ADC數值......................20
4.4 方向盤角度270度時的加速度ADC數值......................21
第五章、結論...............................................26
參考文獻...................................................27

[1] 王俊、楊勝兵、過學迅，汽車方向盤轉角傳感器系統設計及算法研究，湖北汽車工業學院學報，pp.23-25，2011。取自
http://lib.cnki.net/cjfd/HQCG201101006.html
[2] 维基百科，Arduino，取自
http://zh.wikipedia.org/wiki/Arduino
[3] 3軸加速度傳感器MMA7260商品基本信息，取自
http://www.jyoorobot.com/cpzs/chuanganqi/2010-07-07/38.html
[4] Arduino基礎教學，取自
http://www.ym.edu.tw/~yhkao/iedu/arduino_experiments.pdf
[5] Arduino Uno開箱文與安裝設定，取自
http://yehnan.blogspot.tw/2012/02/arduino-uno.html
[6] Arduino學習筆記41 - Arduino Uno + MMA7361三軸加速度傳感器演示實驗，取自
http://www.geek-workshop.com/thread-1125-1-1.html
[7] Arduino-ArduinoBoardUno，取自
http://arduino.cc/en/Main/arduinoBoardUno
[8] Cooper Maa，Arduino入門教學，取自
http://coopermaa2nd.blogspot.tw/2011/05/arduino.html
[9] Cooper Maa，Arduino筆記-認識Arduino，取自
http://coopermaa2nd.blogspot.tw/2010/12/arduino-arduino.html