無人飛行載具近幾年來在世界上有令人注目的應用，越來越多的大學已經開始建立屬於自己的無人飛行載具實驗室，藉以研究及執行一些獨特的任務，同時也滿足教育的需求。為了使無人飛行載具達成自主飛行及長滯空的目標，機載電腦的軟硬體開發成為極重要的因素，本論文因此著重在機載電腦平台軟硬體的開發。本研究之機載電腦選用工業用單板電腦，加上高度計、空速計、GPS、慣性陀螺等感測器，配合一即時多工的作業系統，建構出無人飛機自動飛行所需的軟硬體平台。此平台可以執行飛行資料的收集、分析、計算、儲存，並且將必要的飛行資訊及飛機健康狀況及即時傳至地面站，以利地面站監控飛機。除此之外，本平台具強大的擴充性，可以外接更多不同任務的酬載，以同時或分別應付不同的任務需求。

　　The applications of Unmanned Aerial Vehicle (UAV) have grown drastically around the world in recent years. More and more universities in particular in aerospace engineering have also established their own UAV programs to investigate some unique missions and to fulfill the education and training purpose as well. Based on the UAV mission of autonomous flight and long endurance, the onboard computer system, including relevant hardware and software, becomes vital equipment to be developed to facilitate this goal. This thesis therefore emphasizes on the development of an onboard computer platform both on hardware and software. The platform consists of a single board computer, various air data sensors, Global Positioning System (GPS), inertial sensors, and other necessary peripherals. A real-time operating system (RTOS) called QNX is used as its operating system. The developed platform can collect, analysis/compute, control/monitor, store, and transmit the data downward so that the ground station can receive and monitor in real time the status of the UAV. Furthermore, the present system also can be a good platform to accommodate the requirements of various payloads for the UAV missions.

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