- 學位論文
主動式雙渦環傳香裝置之研發及其與虛擬實境系統之整合
Research and Development of an Active Bi-Olfactory Display and Its Integration with Virtual Reality
摘要
在虛擬實境(VR)中加入嗅覺線索將增強用戶在虛擬環境中的沈浸感，而對氣味的精準控制能讓用戶獲得更真實的體驗。在本論文中，我們提出了 aBio，一個主動式雙渦環傳香系統，它能將氣味精確地投射至特定的位置，而不是將氣味擴散至環境中。aBio 通過兩個重低音揚聲器驅動的渦流產生器，發射能夠精準對撞的渦環，為用戶提供在無需穿戴傳香裝置下的自然嗅覺體驗，同時減緩了渦環氣流所帶來的觸覺感受。根據不同的應用場景，渦環的碰撞點可以定位在用戶鼻前的任意位置。為了驗證系統的有效性，並了解用戶在此系統不同參數下的感受，我們進行了一系列的裝置實驗和用戶研究。結果表明，所提出的系統在大部分情況下能有效地使用戶在感知到氣味時不受到渦環氣流的觸覺干擾，同時系統只消耗了非常少量的芳香精油。我們相信，aBio 通過高效地傳遞氣味，在提高虛擬實境中的存在感方面有很大的潛力。
並列摘要
Including olfactory cues in virtual reality (VR) would enhance user immersion in the virtual environment, and precise control of smell would facilitate a more realistic experience for users. In this paper, we present aBio, an active bi-olfactory display system that delivers scents precisely to specific locations rather than diffusing scented air into the atmosphere. aBio provides users with a natural olfactory experience in free air by colliding two vortex rings launched from dual speaker-based vortex generators, which also has the effect of cushioning the force of air impact. According to the various requests of different applications, the collision point of the vortex rings can be positioned anywhere in front of the user's nose. To verify the effectiveness of our device and understand user sensations when using different parameters in our system, we conduct a series of experiments and user studies. The results show that the proposed system is effective in the sense that users perceive fragrances without sensible haptic disturbance while the system consumes only a very small amount of fragrant essential oil. We believe that aBio has great potential for increasing the level of presence in VR by delivering smells with high efficiency.