近年來混合實境(MR) 技術正加速發展，在不同產業當中亦開始應用這項技術作為工作輔助、培訓和遠距協作等用途。本研究透過文獻和案例了解混合實境及其應用於工業設備保修的情境，探討過往如何評估系統的效益和用戶體驗，進而設計一套降低認知負荷與符合使用者經驗設計準則之 MR 保修及訓練輔助系統，最後對系統進行評估。MR系統輔助操作的對象為現役士兵，本研究分析士兵的保修情境及需求，設計MR系統中的功能及操作。系統運用物件辨識與 3D 建模技術，以微軟之Hololens平台及 MRTK 工具模組進行開發。經由實驗結果得知完成之系統能有效提升士兵裝備保養工作品質、降低教學人力成本、增加教學彈性以及降低士兵學習操作時的認知負荷，另也發掘MR系統設計時未考慮的問題，最後提出未來輔助系統的改善建議。

In recent years, mixed reality (MR) technology has accelerated, and it has begun to be applied in various industries for purposes such as job assistance, training, and remote collaboration. This study examined mixed reality and its application to industrial equipment maintenance through a review of the literature and case studies. It also analyzed past evaluations of the benefits and user experience of MR systems in this context. Based on this analysis, an MR maintenance and training assistant system was designed to reduce cognitive load and meet user experience design criteria. The system was developed using the Microsoft HoloLens platform and MRTK tool module, and employed object identification and 3D modeling technology. The target user group for the system was active soldiers. The study analyzed the maintenance needs and situations of soldiers and designed the functions and operation of the MR system. The results of the study showed that the completed system was effective in improving the quality of soldiers' equipment maintenance work, reducing the cost of teaching labor, increasing the flexibility of teaching, and reducing the cognitive load of soldiers during learning and operation. The study also identified areas for improvement in the design of MR systems. Recommendations for the future development of the assistant system were made to enhance overall efficiency.

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