現今智慧型與嵌入式裝置平台蓬勃發展，雲端運算技術成為資訊發展之趨勢。行動雲端運算技術透過卸載可將應用程式佈署至雲端伺服器，解決應用程式因行動裝置硬體資源之限制，造成應用程式執行效能不佳、儲存空間不足與電量消耗等問題。然而，目前行動平台種類繁多，因系統架構相異造成雲端伺服器必須提供各平台之程式執行環境，而建置於雲端伺服器之行動平台彼此獨立運行，使得行動平台使用者只能取得單一行動平台之服務與資源。

本論文設計之行動應用遠端服務平台，提供伺服器端一應用程式與服務程式之運行環境，使得相異平台之程式能同時執行於平台上，共享系統服務與資源；客戶端之行動平台能透過瀏覽器連線至伺服器端，並操作應用程式。其包含四項重點：(1)整合Android原生使用者空間於Linux系統環境；(2)整合Android應用程式開發環境於Linux系統環境；(3)設計裝置服務管理框架與裝置資料之共享機制；(4)提供裝置存取介面，供應用程式取得裝置服務。

本論文實作內容以Android應用伺服器與Linux作業系統統一化硬體抽象層為基礎，建立行動應用之遠端服務平台，前者負責處理使用者之行動平台與伺服器端之行動應用遠端服務平台溝通；後者提供硬體抽象層供裝置服務程式存取實體裝置。本平台將Android 之IPC機制以及系統服務程式、函式庫與常駐程式整合至Linux系統環境，另融入Android之應用程式開發環境，並設計裝置服務管理框架，負責配置裝置使用權與裝置資料給應用程式，使應用程式彼此間能共享平台之裝置資源。

本論文的貢獻在於設計一行動應用遠端服務平台，其系統平台以Linux為基礎，並加入Android原生使用者空間，使得相異平台之應用程式能卸載至遠端服務平台之上，而不用額外建置程式執行環境。此外，應用程式能藉由裝置服務管理框架，能夠存取佈署於平台之裝置並共享裝置資料。

Smart embedded system is flourishing nowadays and cloud computing has become reality of information technology. However, applications that execute on mobile device are commonly restricted by hardware resources and suffer from application performance, shortage of storage space and limitation of power supply. In order to solve these problems, mobile cloud computing exercises offloading to migrate the applications to servers on the side of cloud computing. However, owing to the wide variety of mobile platforms and the difference of system architecture, cloud server commonly provides a runtime environment for each mobile platform by virtualization. With the virtualization technology, mobile platforms can run independently. For the reasons given above, it causes the problems as follows: it increases heavy workload for cloud server; the processes on mobile platform cannot communicate with each other and may not make efficient usage of cloud server.

In this thesis, a remote service platform for mobile applications (MARSP) is designed and implemented. It provides a runtime environment at server side for Linux and Android applications. The applications for different platforms can use MARSP at the same platform and share system services and resources. On the other hand, the services which execute on different platforms can communicate with each other. There are four main design issues as follows: (1) integrate Android native user space to Linux; (2) integrate the Android build system into Linux; (3) design device service manager framework and the mechanism of sharing devices; (4) provide device access interface for applications getting device services.

The implementation of MARSP is based on Android Application Server and UHAL. Android Application Server handles the communication between mobile platform on client side and MARSP on server side while UHAL provides a unified hardware abstract layer for accessing to devices. On MARSP, we integrate Android IPC mechanism, system services, libraries and daemon processes to Linux System and integrate with Android build system. We also design a device service manager framework which can manage device access right and device data to applications, and the applications can share resources of device on the platform with each other.
The main contribution of this thesis is providing a runtime environment for applications and services on remote server. MARSP is based on Linux, and integrate Android native user space in it to enable the applications on different platforms to offload MARSP without building additional runtime environment, and application developers don’t need to develop different versions for different platforms. The application and service which execute on MARSP can communicate with each other by inner-process communication; Applications can access the device that deployed on MARSP and share resources of device by device service manager framework. This advantages for applications to share hardware resources on MARSP and the development of new application scenarios.

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