公开(公告)号：US20220363298A1

公开(公告)日：2022-11-17

申请号：US17765559

申请日：2020-09-04

Applicant: Hitachi, Ltd.

Inventor： Atsushi ODA ,  Kenji IMAMOTO ,  Takumi KUDO

IPC: B61L25/04 ,  G07C5/02 ,  G01S13/931

Abstract: External sensor data is efficiently recorded without changing a resolution or a sampling rate. In a data recording device, an acquired data property storing unit stores, as a data property, an external environment in which external sensor data is to be recorded, an external sensor data property recognizing unit recognizes, as a data property, the external environment corresponding to the external sensor data, a data recording necessity determining unit determines, based on the data property recognized by the external sensor data property recognizing unit and the data property stored in the acquired data property storing unit, whether the external sensor data is required to be recorded, and a data recording unit records the external sensor data when it is determined by the data recording necessity determining unit that the external sensor data is required to be recorded.

公开(公告)号：US20230415800A1

公开(公告)日：2023-12-28

申请号：US18250588

申请日：2021-10-15

Applicant: Hitachi, Ltd.

Inventor： Yukihiko ONO ,  Kenji IMAMOTO ,  Jun KOIKE

IPC: B61L25/06

CPC classification number: B61L25/06

Abstract: The present invention provides a track transportation system, a method of controlling a track transportation system, and a trackside equipment shape measurement system that can check for an anomaly for railway trackside equipment from multiple viewpoints.
Accordingly, a track transportation system according to the present invention is provided with: a surrounding environment observation unit that is installed on a train and obtains surrounding environment observation data by observing a surrounding environment that is for while the train is traveling and includes known trackside equipment; and a trackside equipment shape measurement system that obtains a three-dimensional shape for the trackside equipment by overlapping, on the basis of a track for a rail, a plurality of items of the surrounding environment observation data that include the trackside equipment and have been obtained at a plurality of positions on the track.

公开(公告)号：US20230334995A1

公开(公告)日：2023-10-19

申请号：US18024805

申请日：2021-02-26

Applicant: Hitachi, Ltd.

Inventor： Kenji IMAMOTO ,  Mikio BANDO ,  Takahiro ITO ,  Keiichi KATSUTA

IPC: G08G5/00 ,  G08G5/04

CPC classification number: G08G5/006 ,  G08G5/045 ,  G08G5/0013 ,  G08G5/0069

Abstract: The purpose is to provide a mobile body control system that can more appropriately perform control of a mobile body capable of vertical takeoff and landing. Comprised are a ground monitoring device (10), and a mobile body control device (20) that can communicate with the ground monitoring device (10). The mobile body control device (20) controls the flight of mobile bodies (51, 61, 71) that are capable of vertical takeoff and landing. The ground monitoring device (10) allocates flight routes (52, 62, 72) when the mobile bodies (51, 61, 71) do takeoff and landing, and is also characterized in that when there is an interference space (80) between one flight route (62) and another flight route (72), unless the one fight route (62) is reserved, flight is not permitted on that flight route.

公开(公告)号：US20230202540A1

公开(公告)日：2023-06-29

申请号：US17927952

申请日：2021-04-30

Applicant: HITACHI, LTD.

Inventor： Yukihiko ONO ,  Kenji IMAMOTO ,  Jun KOIKE

IPC: B61L23/04 ,  G01S17/931

CPC classification number: B61L23/041 ,  G01S17/931

Abstract: An object of the present invention is to provide an obstacle detection system and an obstacle detection method for a trajectory traveling vehicle, which are capable of detecting a front obstacle on a trajectory and around the trajectory with high accuracy. The system includes: a monitoring area setting processing unit that sets an obstacle monitoring area for detecting an obstacle; a front obstacle monitoring unit that monitors an obstacle in the obstacle monitoring area using a sensor that horizontally scans the front of the train; and an obstacle detection unit that detects an obstacle in the obstacle monitoring area based on a monitoring result by the front obstacle monitoring unit, in which the front obstacle monitoring unit complements a gap in a detection region of the sensor at a first position with a detection region of the sensor while the train moves from the first position to a second position.

公开(公告)号：US20230051537A1

公开(公告)日：2023-02-16

申请号：US17793684

申请日：2020-12-03

Applicant: HITACHI, LTD.

Inventor： Kenji IMAMOTO ,  Jun KOIKE

IPC: B61L23/00 ,  B61L3/16

Abstract: A train control system includes: a sensor unit; a linear feature configured such that sensor information acquired by the sensor unit includes characteristic information and installed on a track where a train travels; a feature recognition unit calculating a difference value between first sensor information and second sensor information by comparison between the first sensor information acquired during forward monitoring by the sensor unit and the second sensor information acquired by the sensor unit when the linear feature is not shielded and recognizing a presence or absence of shielding of the linear feature based on the difference value; an intrusion determination unit determining a presence or absence of an intrusion into the track based on the presence or absence of the shielding and generating an intrusion determination result; and a train control unit controlling the train by generating a train control instruction based on the intrusion determination.