US 12,347,334 B2
Road guidance system and mobile information terminal used in same
Sadao Tsuruga, Kyoto (JP); Tamotsu Ito, Kyoto (JP); Yasunobu Hashimoto, Kyoto (JP); and Kazuhiko Yoshizawa, Kyoto (JP)
Assigned to MAXELL, LTD., Kyoto (JP)
Appl. No. 17/616,613
Filed by MAXELL, LTD., Kyoto (JP)
PCT Filed Jun. 6, 2019, PCT No. PCT/JP2019/022591
§ 371(c)(1), (2) Date Dec. 3, 2021,
PCT Pub. No. WO2020/245991, PCT Pub. Date Dec. 10, 2020.
Prior Publication US 2022/0230560 A1, Jul. 21, 2022
Int. Cl. G09B 21/00 (2006.01); G06K 7/14 (2006.01); G08G 1/005 (2006.01)
CPC G09B 21/006 (2013.01) [G06K 7/1417 (2013.01); G08G 1/005 (2013.01); G09B 21/003 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A road guidance system comprising:
a tactile paving tile to which a two-dimensional code is affixed;
a road guidance server storing arrangement information of the tactile paving tile; and
a mobile information terminal connected to the road guidance server via a network,
wherein the mobile information terminal includes:
a photographing processing unit;
a two-dimensional code analysis processing unit that analyzes the two-dimensional code;
a voice output processing unit;
an information acquisition unit; and
a control unit,
wherein the information acquisition unit acquires a current position of the mobile information terminal, and
wherein the control unit 1) identifies, based on the current position of the mobile information terminal and the arrangement information of the tactile paving tile, a predetermined tactile paving tile disposed at a position closest to the current position of the mobile information terminal, 2) provides, via the voice output processing unit, voice guidance on a distance from the current position of the mobile information terminal and a walking direction of a user holding the mobile information terminal, 3) when the mobile information terminal detects a presence of the predetermined tactile paving tile, analyzes, using the two-dimensional code analysis processing unit, the two-dimensional code affixed to the predetermined tactile paving tile photographed by the photographing processing unit to obtain two-dimensional code information, 4) generates road guidance information generated based on the walking direction of the user holding the mobile information terminal from the obtained two-dimensional code information, and 5) outputs the road guidance information from the voice output processing unit as a voice.