دانلود رایگان مقاله صدا مبتنی بر تشخیص محیط داخلی و خارجی برای انتقال موقعیت بدون درز

Abstract

In this paper, we propose a sound-based indoor and outdoor environment detection method to realize seamless positioning handover for in-and-outdoor integrated positioning systems. The proposed method uses a special chirp sound probe which is propagated by a speaker of a mobile device and collected back through a microphone of the device. The indoor and outdoor environments are detected by analyzing the reverberation patterns of the retrieved probe. When we tested the proposed method at 46 indoor and outdoor locations, roughly 95% detection accuracy was achieved.

4. Conclusion

This paper presented a sound-based indoor and outdoor environment detection method for the seamless indoor and outdoor positioning handover. Chirp signal was used for the first time to detect indoor and outdoor environments. The performance of the method was outstanding compared to existing methods. Although the method was developed to detect indoor and outdoor environments for positioning systems, it can be used for other applications as well. For example, the awareness of indoor and outdoor is important for some context-aware applications. Since this paper showed the feasibility of the proposed method with a simple experiment, further studies are required with variable experimental settings for applying the method to the real-world applications.