公开(公告)号：US20210382491A1

公开(公告)日：2021-12-09

申请号：US17245041

申请日：2021-04-30

Applicant: Hitachi, Ltd.

Inventor： Kazuya MUROTANI ,  Noriyasu HASEJIMA ,  Takehito OGATA ,  Yuichi IGARASHI ,  Kazuo ONO ,  Yuta ESAKA

IPC: G05D1/02 ,  G05D1/00

Abstract: A self-propelled inspection robot according to the invention includes a self-position estimation unit that performs inspection of an equipment by traveling on a travel route and obtains the position of the self-propelled inspection robot, an obstacle detection unit that detects an obstacle, an inspection continuity determination unit that determines whether the self-propelled inspection robot can continue the inspection, a mode selection unit that selects an automatic mode and a manual mode as a travel mode of the self-propelled inspection robot when the inspection continuity determination unit determines that the inspection cannot be continued, and a control unit that makes the self-propelled inspection robot automatically travel when the inspection continuity determination unit and when the mode selection unit selects the automatic mode, and makes the self-propelled inspection robot travel by a user's operation when the mode selection unit selects the manual mode.

公开(公告)号：US20240019872A1

公开(公告)日：2024-01-18

申请号：US18030783

申请日：2021-10-12

Applicant: Hitachi, Ltd.

Inventor： Hiroyuki YAMADA ,  Noriyasu HASEJIMA ,  Go SAKAYORI ,  Takehito OGATA ,  Keiichi KATSUTA

IPC: G05D1/02

CPC classification number: G05D1/0297 ,  G05D2201/0216

Abstract: The present invention addresses the problem of efficiently moving a plurality of moving objects under different rule-based control systems without impairing safety. In order to solve this problem, a moving body task estimation unit 501 estimates moving body tasks 541 of a plurality of moving bodies 1 under different rule-based control systems, an optimum route generation unit 503 searches for optimum routes 542 using various combinations of a plurality of pieces of task information, and a common movement route creation unit 504 creates a common movement route 543 for the plurality of moving bodies by overlapping the obtained optimum routes 542.

公开(公告)号：US20220397908A1

公开(公告)日：2022-12-15

申请号：US17775413

申请日：2020-07-22

Applicant: Hitachi, Ltd.

Inventor： Yuichi IGARASHI ,  Yuta ESAKA ,  Kazuo ONO ,  Noriyasu HASEJIMA ,  Kazuya MUROTANI ,  Takehito OGATA

IPC: G05D1/02

Abstract: Provided is a self-propelled inspection device capable of improving efficiency of system introduction cost, setting, and update work necessary for self-propelling in a self-propelled inspection device expected to be operated outdoors for a long period of time. Therefore, there is provided the self-propelled inspection device that autonomously inspects an inspection object while autonomously traveling an inspection route, the self-propelled inspection device including: a self-position estimation unit that estimates a self-position; a map information database that manages map information for autonomous traveling; a traveling unit including a drive mechanism and a steering mechanism; a sensor that senses the inspection object; a map information update unit that updates the map information based on information sensed by the sensor; and a traveling unit control unit that controls the traveling unit based on the updated map information.

公开(公告)号：US20220284809A1

公开(公告)日：2022-09-08

申请号：US17636434

申请日：2020-05-15

Applicant: HITACHI, LTD.

Inventor： Keiichi KATSUTA ,  Junya TAKAHASHI ,  Takehito OGATA ,  Wataru TANAKA ,  Mariko MIZUOCHI ,  Kentaroh MAKI

IPC: G08G1/08 ,  G08G1/09

Abstract: In a traffic flow control system, communication is performed with a travel control device of a moving body passing through a transportation route and the traffic flow of the transportation route is controlled. The traffic control system includes an entry authority management unit and a communication unit. In a transportation route divided into virtual areas, the entry authority management unit manages entry authority for each area, managing tokens in a number that corresponds to the area, and guiding entry of the moving body to the area by attaching entry authority to a token and delivering the resulting token to the travel control device. The communication unit communicates the entry authority and tokens to the travel control device.