A device, a program, and a method of presuming the place of stay of the user who possessed the personal digital assistant

Japanese Patent JP6169022

B2

PROBLEM TO BE SOLVED: To provide a device and a program that accurately and sequentially estimate a place of stay significant for a user without starting a positioning function of a mobile terminal whenever base station information which can be obtained by a communication carrier facility, is rough in spatial granularity, and whose time interval is not constant is recorded.SOLUTION: A device includes: communication history accumulation means 121 that successively accumulates a plurality of communication records in which communication date and time and its base station position information are associated per mobile terminal; and stay/movement determination means 122 that inputs a present input point representing a communication record accumulated presently in a stay memory, determines "it is a stay" if change distance between the present input point and a previous input point is equal to or less than a first threshold value, and the number of input points included in the stay memory is equal to or more than a second threshold value, and/or time width between those input points is equal to or more than a third threshold value, and determines "it is movement" and deletes input points other than the last input point in the stay memory, otherwise.

Shiori Kurokawa
Shigeki Muramatsu
Takafumi Watanabe
Hiroki Ishizuka

JP2014044667A

July 26, 2017

March 07, 2014

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KDDI CORPORATION

G06Q50/10; G06Q30/02; G06Q50/32; H04M11/00; H04W64/00

JP2012085095A
JP2004287804A
JP2011170810A
JP2014191531A
JP2014119798A
JP2014116808A

US20070232324

Shigeki Hayahara

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