US 11,754,722 B2
Information processing apparatus, information processing system, information processing method, and non-transitory computer readable medium
Ryo Miyamoto, Tokyo (JP); Maho Kashiwagi, Tokyo (JP); and Yuka Kanda, Tokyo (JP)
Assigned to NEC Solution Innovators, Ltd., Tokyo (JP)
Appl. No. 17/277,881
Filed by NEC Solution Innovators, Ltd., Tokyo (JP)
PCT Filed Jun. 14, 2019, PCT No. PCT/JP2019/023659
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/066155, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 2018-180824 (JP), filed on Sep. 26, 2018.
Prior Publication US 2021/0349220 A1, Nov. 11, 2021
Int. Cl. G01S 19/08 (2010.01); G01S 19/37 (2010.01)
CPC G01S 19/08 (2013.01) [G01S 19/37 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising:
a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite;
a parameter acquisition unit configured to acquire a parameter preset based on the positioning signal;
a storage unit configured to store a plurality of the parameters at a plurality of time points in a preset period;
an accuracy index calculation unit configured to calculate a positioning accuracy index from the plurality of stored parameters; and
an output unit configured to output the positioning accuracy index, wherein
the accuracy index calculation unit calculates a degree of fluctuation according to a fluctuation of the parameter in the period for each parameter and calculates the positioning accuracy index based on the degree of fluctuation,
the accuracy index calculation unit further calculates a satellite accuracy index based on the degree of fluctuation for each positioning satellite, and
the output unit outputs the satellite accuracy index together with the positioning accuracy index.