Discrimination of moving status for logistic tracking systems using Mahalanobis distance of acceleration record

Author

Kawasaki, Satoshi ; Yoshida, Hiroshi ; Hosaka, Hiroshi ; Kawahara, Yasuhiro

Author_Institution

Grad. Sch. of Frontier Sci., Univ. of Tokyo, Chiba, Japan

fYear

2010

fDate

21-24 Nov. 2010

Firstpage

2168

Lastpage

2172

Abstract

An algorithm that judges the moving or staying statuses of distribution equipment by continuous measurement of the vibration is developed to realize a low-cost and power-saving logistic positioning systems. First, the measured acceleration levels are divided into two groups using tentative threshold level. Then, the threshold level is updated repeatedly using Mahalanobis distances of two groups to minimize the probability of discrimination error. Also an approximate formulas for the threshold to reduce computation amount is presented. Finally, to confirm the effectiveness of this method, the discrimination accuracy was evaluated using the simulation and actually measured data of an automobile.

Keywords

acceleration measurement; approximation theory; automobiles; minimisation; position control; probability; vibration measurement; Mahalanobis distances; acceleration record; approximate formulas; continuous vibration measurement; discrimination accuracy; discrimination error probability; distribution equipment; logistic tracking system; moving status; power saving logistic positioning systems; tentative threshold level; Mahalanobis distance; logistics; positioning;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2010 - 2010 IEEE Region 10 Conference

Conference_Location

Fukuoka

ISSN

pending

Print_ISBN

978-1-4244-6889-8

Type

conf

DOI

10.1109/TENCON.2010.5686741

Filename

5686741