公开(公告)号：US20240420553A1

公开(公告)日：2024-12-19

申请号：US18705019

申请日：2021-11-17

Applicant: NEC Corporation

Inventor： Ryusuke IMAI ,  Akira Tsuji

IPC: G08B13/186 ,  G08B13/16

Abstract: An abnormality determination method capable of contributing to improvement of abnormality determination accuracy is implemented. The abnormality determination method according to an example embodiment of the present disclosure includes: setting a first area for an optical fiber sensor to attempt to detect an abnormality; setting a second area in which detection of an abnormality is invalidated when the abnormality is detected in the first area; setting an invalid time zone in which detection of an abnormality is invalidated when the abnormality is detected in the first area; and determining, when an abnormality is detected in the first area, that no abnormality has occurred in the first area in a case where a position where the abnormality is detected is inside the second area and a time when the abnormality is detected is within the invalid time zone.

公开(公告)号：US20240329222A1

公开(公告)日：2024-10-03

申请号：US18698397

申请日：2021-10-20

Applicant: NEC Corporation

Inventor： Ryusuke IMAI

IPC: G01S7/51 ,  G01S17/58 ,  G01S17/89

CPC classification number: G01S7/51 ,  G01S17/58 ,  G01S17/89

Abstract: A facility inspection display device includes: a trajectory display unit that displays a trajectory of coordinates serving as a base point when point cloud data of a facility using LiDAR is acquired by moving the LiDAR in the facility; a point cloud data display unit that displays the point cloud data acquired with user-designated coordinates at a user-designated position on the trajectory designated by a user in the trajectory display unit as the base point; and a deterioration event display unit that causes the trajectory display unit to display, as a deterioration event position, deterioration event coordinates serving as the base point when the point cloud data including a deterioration event of the facility is acquired.

公开(公告)号：US20250164292A1

公开(公告)日：2025-05-22

申请号：US18931194

申请日：2024-10-30

Applicant: NEC Corporation

Inventor： June ORIHARA ,  Masayoshi MACHIDA ,  Masahiko OHTA ,  Takuma OKUBO ,  Masumi SAITOU ,  Ryusuke IMAI

IPC: G01D5/353 ,  G06T7/00

Abstract: A monitoring system is provided, including: a data acquisition means for acquiring first data indicating a distribution of at least one physical quantity in a longitudinal direction of an optical fiber calculated based on backscattered light of the optical fiber installed in an infrastructure facility, and second data indicating the at least one physical quantity detected by a measurement sensor installed in the infrastructure facility; a failure detection means for detecting a failure of the infrastructure facility, based on the first data and the second data; and an output means for outputting a detection result by the failure detection means.

公开(公告)号：US20250014280A1

公开(公告)日：2025-01-09

申请号：US18753043

申请日：2024-06-25

Applicant: NEC Corporation

Inventor： Takanori SHIGETA ,  Akira TSUJI ,  Shigeo SUZUKI ,  Yusuke KUNII ,  Hiroshi MATSUMOTO ,  Ryusuke IMAI

IPC: G06T17/20

Abstract: An object of the present invention is to provide an information processing apparatus being capable of suppressing an increase in capacity and preventing a decrease in accuracy of a shape of an object when generating image data based on point cloud data. The information processing apparatus according to the present disclosure includes: an identification unit that identifies a shape of an object included in point cloud data; a generation unit that generates first mesh data of a first object whose shape is identified, and generates second mesh data of a second object whose shape is identified, by using a mesh resolution different from a mesh resolution used in generating the first mesh data; and an integration unit that generates three-dimensional data acquired by combining the first mesh data and the second mesh data.