US 12,345,545 B2
Travel distance calculation method, travel distance calculation device, and non-transitory computer readable recording medium storing travel distance calculation program
Hiroya Tanaka, Osaka (JP); and Yuko Kida, Osaka (JP)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Aug. 31, 2022, as Appl. No. 17/900,591.
Application 17/900,591 is a continuation of application No. PCT/JP2021/002466, filed on Jan. 25, 2021.
Claims priority of provisional application 62/990,250, filed on Mar. 16, 2020.
Claims priority of application No. 2020-207580 (JP), filed on Dec. 15, 2020.
Prior Publication US 2022/0412773 A1, Dec. 29, 2022
Int. Cl. G01C 22/00 (2006.01); A61B 5/11 (2006.01)
CPC G01C 22/00 (2013.01) [A61B 5/1113 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A travel distance calculation method used in a travel distance calculation device that calculates a travel distance of a person in a house, the travel distance calculation method comprising:
acquiring first detection information indicating that the person is detected by a first sensor provided in a first space in the house, second detection information indicating that the person is detected by a second sensor provided in a second space different from the first space in the house, third detection information indicating that the person is detected by a third sensor provided in a third space connecting the first space and the second space in the house, and fourth detection information indicating that the person is detected by a fourth sensor provided at a position different from a position where the first sensor is provided in the first space;
adding a first distance between the first sensor and the third sensor to the travel distance based on the first detection information and the third detection information when the person is detected by the third sensor after the person is detected by the first sensor or when the person is detected by the first sensor after the person is detected by the third sensor, adding a second distance between the second sensor and the third sensor to the travel distance based on the second detection information and the third detection information when the person is detected by the third sensor after the person is detected by the second sensor or when the person is detected by the second sensor after the person is detected by the third sensor, adding no third distance between the first sensor and the second sensor to the travel distance based on the first detection information and the second detection information when the person is detected by the second sensor after the person is detected by the first sensor or when the person is detected by the first sensor after the person is detected by the second sensor, adding a fourth distance between the first sensor and the fourth sensor to the travel distance based on the first detection information and the fourth detection information when the person is detected by the fourth sensor after the person is detected by the first sensor or when the person is detected by the first sensor after the person is detected by the fourth sensor, and adding the first distance between the first sensor and the third sensor to the travel distance without adding the second distance between the second sensor and the third sensor to the travel distance when the person is detected by the second sensor after the person is detected by the third sensor, the person is detected by the first sensor after the person is detected by the second sensor, and the person is detected continuously three or more times by at least one of the first sensor and the fourth sensor after the person is detected by the first sensor; and
outputting the added travel distance.