Presentation 2017-07-06
Improving estimation accuracy of moving distance along stairs in indoor environment using a Rotation Sensor of a Smart Phone
Masaki Nishizaka, Hiroaki Morino,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) When evacuating from the building in case of disaster , if you can store the record of the evacuated route in smart phone, there is a possibility that it can be used for people who can’t be evacuated by the rescue them. From this point of view, author proposes that detecting the direction change and estimating the number of floors according to the number of landings that passed. For the measurement of the angle of bending, use is made of Game Rotation Vector Sensor which is structured so as not to cause errors due to “drift” and minute vibration of the smart phone.In this Sensor, since the error becomes large depending on the holding method of the smart phone, correction is added. And reduce the error by summing the turning degrees when passing through multiple landings. As a result, when put in breast pocket, the estimation error rate of the moving rank decreased 99.1% to 1.82%.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Smart Phone / PDR / Game Rotation Vector Sensor
Paper # MoNA2017-13,LOIS2017-11
Date of Issue 2017-06-29 (MoNA, LOIS)

Conference Information
Committee MoNA / LOIS / IPSJ-DC
Conference Date 2017/7/6(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Ryoichi Shinkuma(Kyoto Univ.) / Hiroyuki Nishi(Sojo Univ.) / Hiroshi Morishima(Hitachi)
Vice Chair Shigeaki Tagashira(Kansai Univ.) / Gen Kitagata(Tohoku Univ.) / Tomohiro Yamada(NTT)
Secretary Shigeaki Tagashira(Kyushu Univ.) / Gen Kitagata(NTT) / Tomohiro Yamada(NTT) / (Nagasaki Univ.)
Assistant Koichi Nihei(NEC) / Takayuki Nishio(Kyoto Univ.) / Masakatsu Tsukamoto(NTTdocomo) / Yukihiro Nakamura(NTT)

Paper Information
Registration To Technical Committee on Mobile Network and Applications / Technical Committee on Life Intelligence and Office Information Systems / Special Interest Group on Document Communication
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improving estimation accuracy of moving distance along stairs in indoor environment using a Rotation Sensor of a Smart Phone
Sub Title (in English)
Keyword(1) Smart Phone
Keyword(2) PDR
Keyword(3) Game Rotation Vector Sensor
1st Author's Name Masaki Nishizaka
1st Author's Affiliation Shibaura Institute Of Technology(SIT)
2nd Author's Name Hiroaki Morino
2nd Author's Affiliation Shibaura Institute Of Technology(SIT)
Date 2017-07-06
Paper # MoNA2017-13,LOIS2017-11
Volume (vol) vol.117
Number (no) MoNA-115,LOIS-116
Page pp.pp.31-35(MoNA), pp.31-35(LOIS),
#Pages 5
Date of Issue 2017-06-29 (MoNA, LOIS)