公开(公告)号：US20250130061A1

公开(公告)日：2025-04-24

申请号：US18835472

申请日：2022-02-18

Applicant: NEC Corporation

Inventor： Shuei YAMADA ,  Shintaro Chiku ,  Naoko Fukushi ,  Masanori Kuki ,  Shuhei Mizuguchi ,  Kosei Kobayashi

IPC: G01C21/00 ,  G06V20/52 ,  G08B21/04 ,  H04W4/02

Abstract: An information provision system according to an aspect of the present disclosure includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: collect, from a user terminal, position information of the user terminal and behavior information indicating a movement behavior of the user terminal moving at an acceleration higher than a predetermined value; generate a danger level map representing an attention-seeking place based on a position in which the behavior information is observed on a predetermined map; and provide the danger level map to a predetermined terminal.

公开(公告)号：US20250052018A1

公开(公告)日：2025-02-13

申请号：US18722835

申请日：2022-03-01

Applicant: NEC CORPORATION

Inventor： Masanori KUKI ,  Shintaro Chiku ,  Naoko Fukushi ,  Shuei Yamada ,  Shuhei Mizuguchi ,  Kosei Kobayashi

IPC: E01C23/01 ,  G01S17/89 ,  G06V20/56

Abstract: A road surface marking detection means detects a road surface marking on a road, based on sensor information acquired by sensing a road. An interruption detection means detects a portion where the road surface marking is interrupted, based on a detection result of the road surface marking. A factor determination unit determines a factor for which the road surface marking is interrupted with respect to a portion where a matter that the road surface marking is interrupted is detected.