Paper Info
Title
Privacy protected life-context-aware alert by simplified sound spectrogram from microphone sensor
Abstract
This paper introduces a design of life-context-aware alert system from multiple small microphone sensors at various places in home. In order to support the comfortable daily lives of elderly people who live alone, it is important to know their daily activities in home without privacy exposure. In the case of their emergency appeared from overwatching data, the system must alert the situation to the hospitals, ambulances, or their families. To reduce data for fast calculation on PIC and to protect their privacy, the system adopts simplified sound spectrogram from each installed microphone modules. The system first analyses these multiple signals to roughly understand what situation occurs, and decides what type of daily-life are found. When the user's life shows emergent situations, the system alerts to the appropriate contact person or institution. This paper especially describes how to simplify the raw data from the microphone sensor with using frequency/time domain for reducing the amount of data and for privacy protection.
Year
DOI
Venue
2011
10.1145/2036146.2036148
CASEMANS '11 Proceedings of the 5th ACM International Workshop on Context-Awareness for Self-Managing Systems
Keywords
DocType
Citations 
multiple small microphone sensor,life-context-aware alert system,sound spectrogram,daily activity,privacy protection,overwatching data,privacy exposure,comfortable daily life,installed microphone module,raw data,microphone sensor,time domain
Conference
3
PageRank 
References 
Authors
0.50
5
6
Name
Order
Citations
PageRank
Tomoko Yonezawa117529.35
Naoki Okamoto230.50
Hirotake Yamazoe312624.07
Shinji Abe416818.45
Fumio Hattori516426.81
Norihiro Hagita62877259.10