ウェアラブルセンサの加速度データによるセンサ間の時刻同期手法(Method of Time Synchronization Between the Sensors of Acceleration Data by Wearable Sensors)

Reviewed
Shota Tanaka, Masato Nakamura, Yuichi Hattori, Sozo Inoue,
マルチメディア,分散,協調とモバイルシンポジウム(DICOMO2012)予稿集
(Not Available)
(Not Available)
8 pages
2012-07-04
Ishikawa, Japan
http://www.dicomo.org/2012/
In this paper, we describe a time synchronization method between multiple wearable sensors using only data that measured from wearable sensors.Our proposed method is as follows.
1)Take the differentials of the moving averages of each time window for each variables in the sensor data.
2)Obtain the strengths of each time by the mean square of each variable in the sensor data.
3)For each pair of sensors, by shifting the two sensor data, search the maximum correlation of the two data, and the poin, and the point of maximum correlation is determined as a predicted value of synchronization.
4)Based on the structure of the graph which represents the link among sensors, the predicted values of synchronization are adjusted.
As a result of an experiment using real data, the predicted results show the possibility of our approach.

Data Files