US 12,468,026 B2
Position determination device
Noriyuki Yatabe, Hiroshima (JP); Kohei Yamaguchi, Hiroshima (JP); and Junichi Igawa, Hiroshima (JP)
Assigned to MINEBEA MITSUMI Inc., Nagano (JP)
Filed by MINEBEA MITSUMI Inc., Nagano (JP)
Filed on Mar. 11, 2024, as Appl. No. 18/600,966.
Claims priority of application No. 2023-116189 (JP), filed on Jul. 14, 2023.
Prior Publication US 2025/0020793 A1, Jan. 16, 2025
Int. Cl. G01S 13/76 (2006.01); G01S 13/87 (2006.01)
CPC G01S 13/765 (2013.01) [G01S 13/878 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A position determination device comprising:
a communication unit including a plurality of communication devices configured to perform wireless communication with a mobile terminal including a movement detection unit configured to detect a movement value including a movement amount and a movement angle, each of the plurality of communication devices being configured to repeatedly perform first wireless communication for detecting a distance measurement value with respect to the mobile terminal, at least one of the plurality of communication devices being configured to repeatedly perform second wireless communication for receiving the movement value;
a main position determination unit configured to determine a first coordinate position, which is a position of the mobile terminal, based on a plurality of distance measurement values obtained by the first wireless communication;
a sub-position determination unit configured to determine a second coordinate position, which is a position of the mobile terminal, based on the movement value obtained by the second wireless communication; and
a determination position setting unit configured to set any one of the first coordinate position and the second coordinate position as a determination coordinate position that is a current position of the mobile terminal.