التفاصيل البيبلوغرافية
| العنوان: |
Bluetooth, Floor-Plan, and Microelectromechanical Systems-Assisted Wide-Area Audio Indoor Localization System: Apply to Smartphones. |
| المؤلفون: |
Xu, Shihao1 shihao.xu@whu.edu.cn, Chen, Ruizhi1 ruizhi.chen@whu.edu.cn, Guo, Guangyi1 guangyi.guo@whu.edu.cn, Li, Zheng1 lizhenglwf@whu.edu.cn, Qian, Long1 lqian1995@whu.edu.cn, Ye, Feng1 yefeng92@whu.edu.cn, Liu, Zuoya1 zyliu0017@whu.edu.cn, Huang, Lixiong1 lx.huang@whu.edu.cn |
| المصدر: |
IEEE Transactions on Industrial Electronics. Nov2022, Vol. 69 Issue 11, p11744-11754. 11p. |
| مصطلحات موضوعية: |
*TIME division multiple access, *INDOOR positioning systems, *SMARTPHONES, FLOOR plans, FREQUENCY division multiple access |
| مستخلص: |
During the past decade, there has been an increasing interest in the audio-based indoor localization approach, which has benefited from the high precision, high privacy, and high security of the passive time difference of arrival positioning. However, the limited bandwidth and complexity in real-time ID encoding and decoding make it difficult to achieve wide-area (>1500 m2) localization in off-the-shelf smartphones. Plenty of previous work applied to a single region localization only with a small range. In this article, a hybrid acoustic signal transmission architecture based on frequency division multiple access, time division multiple access, and space division multiple access is perfected to cover the acoustic signal to a wider range. With the prior information of the Bluetooth and floor-plan, smartphones estimate which cell themselves are located in accurately. An enhanced particle filter algorithm, along with the microelectromechanical systems-based pedestrian dead reckoning and the floor-plan restraint, was proposed to make the smartphones tracking smarter and more robust. The proposed prototype system provided submeter-level localization accuracy and stable 1-Hz update rate in several typical wide indoor environments with less infrastructure, which demonstrates some values of reference and application owing to the work of this article. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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