Study of Location and Navigation Services in Complex Indoor Scenes Based on the Android Mobile Computing Platform

Author(s):  
Yucheng Guo ◽  
Lei Cao
Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 811
Author(s):  
Yingdan Li ◽  
Fei Chen ◽  
Zhuoyi Sun ◽  
Zhaoyang Weng ◽  
Xian Tang ◽  
...  

This paper presents a new structure for hearing aids. Normally, the power consumption and user experience are contradictory. The proposed hearing aid structure mainly consists of three parts: the earpieces, the mobile computing platform, and the real-time speech-enhancement application. It can run complex algorithms without carrying out heavy calculations on the processors in the hearing aid. Thus, the binaural algorithm is utilized without being limited by complexity and power consumption to improve the user experience. Moreover, the speech-enhancement algorithm can be updated much more easily than in traditional built-in digital signal process hearing aids. A good level of user experience is achieved by combining the hearing aid and mobile computing platform with a 400-MHz transceiver; furthermore, the 400-MHz transceiver can reduce path loss around the body. The concept verification process showed that the overall usage of the central processing unit in the smartphone is around 16%, the signal-to-noise ratios show at least a 30% improvement in some environments, and the whole system delay is 8.8 ms. The presented objective and subjective results show significant improvements regarding user experience and usability brought about by the proposed structure.


2012 ◽  
Vol 178-181 ◽  
pp. 2747-2751
Author(s):  
Yuan Hui Yu ◽  
Yong Mei Li ◽  
Ying Deng

WinCE is the foundation of Microsoft embedded, mobile computing platform, it is an open, can be upgraded 32-bit embedded operating system, and it is an electronic equipment operating system based on handheld computers. This paper designed a kind of video monitoring system based on WinCE embedded operating system and ARM9 processor core. The system can collect video information by camera, and then transmit the getting information to the remote server to monitor, the experiment result shows that the system has a good stability and real-time.


2014 ◽  
Vol 141 (6) ◽  
pp. 834-840 ◽  
Author(s):  
Richard S. P. Huang ◽  
Elena Nedelcu ◽  
Yu Bai ◽  
Amer Wahed ◽  
Kimberly Klein ◽  
...  

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