公开(公告)号：US11755040B2

公开(公告)日：2023-09-12

申请号：US16756018

申请日：2019-01-18

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Ken Koumoto ,  Hidetoshi Ebara ,  Youhei Oono ,  Yuichiro Segawa ,  Yukiko Nakamura ,  Shinya Hanano

IPC: G05D1/10 ,  B64C39/02 ,  B64U10/13

CPC classification number: G05D1/1064 ,  B64C39/024 ,  B64U10/13 ,  B64U2201/10

Abstract: A flight control apparatus that enables a flying object to safely pass another flying object includes a detection unit configured to detect, in a predetermined range from a flying object, another flying object. A specifying unit is configured to specify a moving direction of the detected other flying object. A judging unit is configured to judge, based on the specified moving direction, whether or not passing is possible. A determination unit is configured to determine, based on a relationship between the flying object and the other flying object, content of a passing operation to be performed with respect to the other flying object. A flight control unit is configured to, if it is judged that passing is possible, control flight of the flying object and perform the passing operation according to the determined content.

公开(公告)号：US11645879B2

公开(公告)日：2023-05-09

申请号：US16955233

申请日：2019-01-22

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Ken Koumoto ,  Hidetoshi Ebara ,  Youhei Oono ,  Yuichiro Segawa ,  Yukiko Nakamura ,  Shinya Hanano

IPC: G07C5/08 ,  B64F5/60 ,  G07C5/00 ,  G08G5/00 ,  G08G5/04

CPC classification number: G07C5/0808 ,  B64F5/60 ,  G07C5/008 ,  G08G5/0039 ,  G08G5/0069 ,  G08G5/045

Abstract: Flight control unit and flight unit start flight in accordance with a flight plan. Flight history acquisition unit acquires a flight history of drone. Flight plan acquisition unit acquires a flight plan for drone. Inspection timing determination unit calculates a difference between the acquired flight plan and the acquired flight history, and based on the difference, determines an inspection timing for drone. Inspection timing notification unit provides notification of the determined inspection timing.

公开(公告)号：US11528674B2

公开(公告)日：2022-12-13

申请号：US17269154

申请日：2019-05-21

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Youhei Oono ,  Yuichiro Segawa ,  Shinya Hanano ,  Takashi Yoshimoto ,  Yasuhiro Kitamura

IPC: H04W56/00 ,  H04W4/02 ,  H04W72/12

Abstract: If a propagation delay equal to or greater than a threshold value is detected in the uplink of a time-division duplex between a first wireless communication terminal and a first wireless base station, a suppression unit 52 performs control pertaining to resources in the time-division duplex of a first wireless communication terminal. Thereby, communication errors that occur in a second wireless communication terminal wirelessly connected to the second wireless base station that is different from the first wireless base station, to which the first wireless communication terminal is wirelessly connected, is suppressed by uplink communication performed by the first wireless communication terminal in accordance with the propagation delay. For example, this suppression process is a process pertaining to the assignment of resources a time-division duplex with respect to the first wireless communication terminal.

公开(公告)号：US11810462B2

公开(公告)日：2023-11-07

申请号：US17269324

申请日：2019-05-21

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Youhei Oono ,  Yuichiro Segawa ,  Shinya Hanano ,  Takashi Yoshimoto ,  Yasuhiro Kitamura

IPC: G08G5/00 ,  H04L5/14 ,  H04W56/00 ,  B64U101/20

CPC classification number: G08G5/0043 ,  G08G5/0004 ,  H04L5/14 ,  H04W56/0055

Abstract: A specifying unit 51 of a flying body operation management device 50 specifies an airspace in which a propagation delay equal to or greater than a threshold value occurs in the uplink of a time-division duplex between a wireless communication terminal 30 and a wireless base station 41 to which wireless communication terminal 30 is wirelessly connected. Next, an assigning unit 52 of flying body operation management device 50 performs a process of assigning, with respect to each airspace, a flying body 10 having a wireless communication terminal 20. At this time, with respect to an airspace specified by specifying unit 51, assigning unit 52 limits the assigning of flying body 10 on which wireless communication terminal 20 is mounted.

公开(公告)号：US11634225B2

公开(公告)日：2023-04-25

申请号：US16955216

申请日：2019-01-22

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Ken Koumoto ,  Hidetoshi Ebara ,  Youhei Oono ,  Yuichiro Segawa ,  Yukiko Nakamura ,  Shinya Hanano

IPC: B64C39/02 ,  B64F5/60 ,  B64U101/00

Abstract: Flight cessation detection unit detects that drone has ceased flying at an unexpected site. Situation information acquisition unit acquires, as situation information indicating a situation related to retrieval of the drone, information on weather in an area in which the drone has flown. Retrieval procedure determination unit determines a retrieval procedure for the drone based on a situation indicated by the acquired situation information. Retrieval procedure determination unit, upon detecting a time period having specific weather based on the acquired information on weather, determines a retrieval procedure in which the time period is designated as a retrieval time.

公开(公告)号：US11531951B2

公开(公告)日：2022-12-20

申请号：US16771854

申请日：2019-01-22

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Ken Koumoto ,  Hidetoshi Ebara ,  Youhei Oono ,  Yuichiro Segawa ,  Yukiko Nakamura ,  Shinya Hanano

IPC: G06Q10/08 ,  B60L50/60 ,  B60L58/12 ,  G05D1/10 ,  B64C39/02 ,  B64D1/12 ,  B64D27/24

Abstract: The location detection unit detects a destination location for delivery of an item by a drone. The release determination unit determines whether the drone transporting the item can release and place the item at the destination. Upon determination that the release and placement is not possible, a standby airspace determination unit determines a standby airspace within which the drone waits. The wait-time determination unit determines a wait-time for the drone in the determined standby airspace. The wait-time determination unit determines a wait-time by which the drone can arrive at a next destination by a scheduled arrival time following departure of the drone departs after standby. The standby instruction unit issues to the drone an instruction related to the standby.