近年來隨著資訊科技的蓬勃發展，及無線網路通訊的普及建置，再加一些行動裝置（如筆記型電腦、PDA、手機等）的普遍化，因為行動裝置具有可攜性、行動性與無線通訊三大特性，使得位置相關服務(Location Based Service)日益重要。目前利用無線網路位置資訊所產生的相關研究包括『與位置有關之服務』及『依據位置而提供之服務』等，統稱位置相關服務。
在行動商務範疇中，被號稱為殺手級的應用服務－『位置相關服務』，位置相關服務是透過取得使用者所在位置資訊及結合相關位置資訊服務，適時提供使用者所需資訊，以協助其完成任務。然而，欲提供一個完善位置服務並非一項簡單的任務，需整合相關技術及結合許多相關資源，方可提供完善位置服務予使用者。因此，如何快速整合所有相關資源，讓使用者可以彈性地取得所需的位置服務功能，是提供位置服務的一大挑戰。
本研究藉由提供特定地域性的無線網路服務，對教師課堂上提供位置相關服務，運用一般教室所具有的無線網路設備，由老師將課堂所需要的資訊，主動傳送至學生筆記型電腦上，讓教學上產生良好互動，進而提升教學品質。

The rapid advance of technology on the wireless communication network promotes the popularization of mobile devices, such as notebook, PDA and cell phones. These devices possess advantages in three main aspects: portability, mobility, and wireless, which contribute further in the realization of “Location Based Service”. Nowadays, studies related to the information of locations on wireless networks include “services based on the information of locations” and “providing services at some specific locations”. These are generally referred to as “Location Based Service”.

In the mobile e-commerce, location-based services are important applications, which allow users to satisfy their specific demands timely, while on the go, according to the users’ location information. However, to provide such a complete location-based service is not an easy task. Several technologies must be integrated and various resources must be coordinated.

This thesis provides location-based service for students in class based on the local wireless network. By using the wireless network equipments in every classroom, teachers can actively push their teaching materials to students’ mobile devices. It can enhance the interactions between teachers and students and thus improve the learning quality.

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