隨著近年擴增實境(Augmented Reality，AR)與虛擬實境(Virtual Reality，VR)等視覺化技術的發展，使BIM的應用層面更趨於多元，軟體操作也因人性化的裝置介面而漸漸降低操作人員BIM專業背景的需求。然而這些視覺化技術在各別使用時仍有各自的短處，如：僅透過VR裝置會無法得知現場情況、使用做為AR介面之行動裝置較不易獲得全面的BIM資訊，而這些視覺化展示設備多為一人使用為主，不利於經常需要多人同時參與的BIM會議及檢討。基於上述理由，本計畫整合擴增實境與虛擬實境，打造多人跨平台之共同作業環境，使人員即使身處不同場所、操作不同介面，均能同時針對同一空間之現況、模型、數據等進行線上即時討論，以此消除單獨使用各裝置時可能產生之障礙。且為了使BIM協同之概念延伸至營運維護階段，除了靜態的BIM參數與資訊外，此系統也導入了物聯網(Internet of Things, IoT)環境監測之動態數據。於房間內架設溫度、濕度等室內監測裝置並建立物聯網，收集之感測數據與建築BIM資訊並統整儲存於雲端資料庫中，使用者透過AR或VR介面調閱資料庫數據時，下載後的數據經處理後將以圖表、動畫特效等視覺化方式呈現。最後帶入系統使用情境模擬，利用本系統進行異地之跨平台線上BIM會議，並使用相關之協同輔助工具，展示共享BIM模型與資訊以提升討論效益之可行性。

With the development of Augmented Reality (AR) and Virtual Reality (VR), the applications of BIM are more diversified, and the user-friendly device interface also lowers the requirements of the operator's BIM professional knowledge. However, these visualization technologies still have some shortcomings when they are applied separately. For example, one cannot know the situation of construction site when using the VR device only. Meanwhile, using the mobile device as the AR interface is not easy to obtain comprehensive BIM information. Furthermore, these display devices are mostly used by one person, but not conducive to BIM review meetings that often require multiple people to participate at the same time. Based on these reasons, this study integrates AR and VR to create a working environment for multi-person and cross-platform, which enables users to simultaneously target the current situation, model, data, etc. of the same space even if they are in different locations and operate different devices. In this environment, uses can do online discussion in real time to eliminate obstacles that may arise when using each device alone. In order to extend the concept of BIM-based collaboration to the operation and maintenance phase, this platform further introduces dynamic data form indoor monitoring using Internet of Things (IoT) in addition to static data, such as geometries and attributes of BIM. Therefore, the platform also includes the deployment of indoor monitoring devices, such as temperature and humidity sensors, in the building to build an sensing network. The sensing data collected and the BIM data are merged and stored in a cloud database. The users can access the database through an AR or VR devices, and the data is visualized in charts or animation effects. Finally, this study proposes some scenarios to demonstrate the use of the system to conduct cross-platform online BIM meetings, and the feasibility of using aid tools of the system to enhance the effectiveness of discussion.

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