公开(公告)号：US11319067B2

公开(公告)日：2022-05-03

申请号：US16492851

申请日：2018-03-06

Applicant: NILEWORKS INC.

Inventor： Hiroshi Yanagishita

IPC: B64C39/02 ,  A01G7/00 ,  B64D47/08 ,  G06N20/00

Abstract: The present invention provides a drone (unmanned aerial vehicle) capable of photographing a base part of the stem and a side of the leaf of the field crops for evaluating their growth status. A camera is positioned on the unmanned aerial vehicle such that the camera's field of view is directed backward with respect to the direction of the unmanned aerial vehicle. The camera captures an image of the crop temporarily knocked down by the downdraft created by the rotor of the drone, which exposes the base part of the stem and the side of the leaf to the sky. Optionally, the depression angle of the camera is automatically adjusted depending on the flight speed, wind force, and wind direction. Optionally, the camera body is automatically rotated to be directed to backward when the drone changes flying directions.

公开(公告)号：US20200348698A1

公开(公告)日：2020-11-05

申请号：US16962869

申请日：2019-02-28

Applicant: NILEWORKS INC.

Inventor： Chihiro WAKE ,  Hiroshi YANAGISHITA

IPC: G05D1/10 ,  B64C39/02 ,  B64D27/24 ,  B64D1/18 ,  B64C27/00 ,  B64D45/00 ,  A01M7/00

Abstract: Provide is an agricultural chemical spraying drone with improved safety. An acceleration sensor and a contact detection sensor are combined to detect contact of a drone with an obstacle. In a case where the contact is detected, a retreat action such as hovering is taken. In addition, a message may be displayed on a control terminal, a warning sound may be generated, and a warning light may be turned on. Further, a structure capable of minimizing finger insertion accidents and minimizing interference with a rotor even in collision is adopted as a propeller guard.

公开(公告)号：US20190382116A1

公开(公告)日：2019-12-19

申请号：US16481523

申请日：2018-01-27

Applicant: NILEWORKS INC.

Inventor： Hiroshi YANAGISHITA

IPC: B64D1/18 ,  B64C39/02 ,  B64C27/82 ,  A01M7/00 ,  B05B13/00

Abstract: PROBLEM: To provide a chemical spraying drone (unmanned air vehicle) in which minimizes chemical drift outside the field by a simple structure without additional equipment and complicated control.SOLUTION: To provide a chemical spraying drone that actively uses the air flow made by rotors for spraying, comprising chemical spray nozzles and rotors (preferably two-stage rotors), wherein the chemical spray nozzles are positioned under the rotors and under a circular area with its center at a point offset by a predetermined distance rearward with respect to the flying direction from the rotor's rotation axis, its radius 90 percent of the radius of the rotor blade, on a straight line with a depression angle of about 60 degrees rearward from the horizontal line passing through the rotor's rotation axis. The position of the chemical spray nozzles may be dynamically adjusted.

公开(公告)号：US12246835B2

公开(公告)日：2025-03-11

申请号：US17047733

申请日：2019-02-27

Applicant: NILEWORKS INC.

Inventor： Chihiro Wake ,  Hiroshi Yanagishita

IPC: B64D1/18 ,  A01M7/00 ,  B64U10/13 ,  G05D1/00 ,  B05B9/06 ,  B64U50/19 ,  B64U101/30 ,  B64U101/45

Abstract: An agricultural chemical spraying drone with improved safety is provided. The drone includes an altitude measurement sensor and a speed measurement sensor and controls not to exceed an altitude restriction and a speed restriction of an airframe by using a flight controller. The sensors are desirable be combination of multiple types. Particularly, the altitude is desirably measured by a GPS during take-off and by a sonar during chemical spraying. Weight of the airframe is measured from time to time, and the altitude restriction and the speed restriction may be adjusted according to the weight.

公开(公告)号：US12172776B2

公开(公告)日：2024-12-24

申请号：US17299033

申请日：2019-12-02

Applicant: NILEWORKS INC.

Inventor： Chihiro Wake ,  Hiroshi Yanagishita

IPC: B64U70/93 ,  B64U10/14 ,  B64U10/16 ,  B64U30/20 ,  B64U50/19 ,  B64U70/92 ,  B64U80/86 ,  G05D1/00 ,  G08G5/00 ,  G08G5/04 ,  B64U101/30 ,  B64U101/40 ,  B64U101/45

Abstract: A drone system that includes a drone and a movable body which is movable with loading the drone and where the drone can take off and land, cooperate to operate and that is able to maintain a high level of safety even during autonomous flight, is provided. The drone has a flight controller controlling a flight of the drone, and a drone transmitter transmitting an information possible to distinguish whether the drone is in flight. The movable body has a take-off and landing area where the drone is loaded, takes off and lands, a movement controller loading the drone on the take-off and landing area and moving the movable body with the drone, a movable body receiver receiving an information from the drone, and a display unit.

公开(公告)号：US12079012B2

公开(公告)日：2024-09-03

申请号：US15734245

申请日：2019-06-03

Applicant: NILEWORKS INC.

Inventor： Chihiro Wake ,  Hiroshi Yanagishita

IPC: G05D1/00 ,  B64C39/02 ,  G08G5/00 ,  B64U10/13 ,  B64U50/19

CPC classification number: G05D1/106 ,  B64C39/024 ,  G05D1/102 ,  G05D1/1062 ,  G08G5/003 ,  G08G5/0065 ,  G08G5/0069 ,  B64U10/13 ,  B64U50/19 ,  B64U2201/20

Abstract: A highly safe drone is provided. A remote controller and a drone are connected to each other through a network and cooperate to operate. The drone includes a flight control unit, a flight start command reception unit receiving a flight start command from a user, a drone determination unit determining a configuration of the drone itself, an external environment determination unit determining an external environment of the drone. The drone system has a plurality of states including a takeoff diagnosis state and satisfies a condition transitioning to another state. The takeoff diagnosis state includes a drone determination state where the drone determination unit determines the configuration of the drone itself and an external environment determination state where the external environment determination unit determines the external environment. The drone system makes the drone to takeoff after transitioning to the takeoff diagnosis state upon receiving the flight start command.

公开(公告)号：US12030405B2

公开(公告)日：2024-07-09

申请号：US17041557

申请日：2019-03-26

Applicant: NILEWORKS INC.

Inventor： Chihiro Wake ,  Hiroshi Yanagishita

IPC: B60L58/22 ,  B60L58/13 ,  B64C39/02 ,  B64D1/18 ,  B64D27/24 ,  B64D45/00 ,  B64U10/13 ,  B64U50/19 ,  B64U101/60

CPC classification number: B60L58/22 ,  B60L58/13 ,  B64C39/024 ,  B64D1/18 ,  B64D27/24 ,  B60L2200/10 ,  B64D2045/0085 ,  B64U10/13 ,  B64U50/19 ,  B64U2101/60

Abstract: An unmanned aerial vehicle and a battery, possible to be disabled when a phenomenon to cause a functional disorder, are provided. The battery includes a battery pack having a battery cell, sensors detecting a phenomenon that impairs a function of the battery pack, a memory storing a detection signal of the sensors, and block circuits blocking output of the battery pack by the detection signal. The unmanned aerial vehicle includes the battery and air frame side sensors, and operates the block circuit, which the battery includes, by the detection signal of the airframe side sensors.

公开(公告)号：US11868144B2

公开(公告)日：2024-01-09

申请号：US17423937

申请日：2020-01-21

Applicant: NILEWORKS INC.

Inventor： Chihiro Wake ,  Hiroshi Yanagishita

IPC: G05D1/10 ,  B60L58/12 ,  B64C39/02 ,  B64D1/16 ,  G08G5/00 ,  G08G5/02 ,  A01C7/08 ,  A01C23/04 ,  A01M7/00 ,  A01M9/00 ,  B64U10/13 ,  B64U101/00

CPC classification number: G05D1/101 ,  B60L58/12 ,  B64C39/024 ,  B64D1/16 ,  G08G5/003 ,  G08G5/0069 ,  G08G5/02 ,  A01C7/08 ,  A01C23/047 ,  A01M7/0089 ,  A01M9/0092 ,  B60L2200/10 ,  B64U10/13 ,  B64U2101/00 ,  B64U2201/00

Abstract: In a drone system in which a drone and a movable body operate in coordination with each other, the drone performing a predetermined operation in an agricultural field, the movable body being capable of moving with the drone aboard and allowing the drone to make a takeoff and a landing, the plan determining section determines a flight plan for the drone and a movement plan for the movable body in accordance with the flight plan, and the instructing section instructs the drone to execute an operation in accordance with the flight plan and instructs the movable body to move or to be on standby in accordance with the movement plan.

公开(公告)号：US11797000B2

公开(公告)日：2023-10-24

申请号：US17041552

申请日：2019-03-26

Applicant: NILEWORKS INC.

Inventor： Chihiro Wake ,  Hiroshi Yanagishita ,  Atsunori Saito

IPC: G05D1/00 ,  A01M7/00 ,  B64C39/02 ,  B64D1/18 ,  B64D45/00 ,  B64U30/20 ,  B64U50/19

CPC classification number: G05D1/0055 ,  A01M7/00 ,  B64C39/024 ,  B64D1/18 ,  B64D45/00 ,  B64D2045/0085 ,  B64U30/20 ,  B64U50/19

Abstract: Being unable to restart when it collides with an object or crashes, an unmanned aerial vehicle, control system thereof and control program, for preventing damage caused by uncontrollable restarts and crashes is provided. The unmanned aerial vehicle includes a plurality of rotating bodies, a plurality of motors individually driving and rotating the plurality of rotating bodies, and a flight controller individually controlling the plurality of motors. The flight controller includes a collision/crash detection unit detecting collision or crash on the basis of a signal from a sensor, and a power cut-off command unit cutting off a power supply on the basis of a detection signal from the collision/crash detection unit.

公开(公告)号：US20230169640A1

公开(公告)日：2023-06-01

申请号：US17797122

申请日：2020-02-06

Applicant: NILEWORKS INC.

Inventor： Chihiro WAKE ,  Hiroshi YANAGISHITA ,  Hiroki KATO

IPC: G06T7/00 ,  G06V20/10

CPC classification number: G06T7/001 ,  G06V20/188 ,  G06T2207/30188

Abstract: Provided are a growth assessment system, growth assessment server and growth assessment method with which it is possible to improve the accuracy of a growth assessment model. A difference determination unit of the growth assessment system compares an estimated growth state value, which is growth state value for a crop that is calculated by a growth assessment model, with a detected growth state value, which is a growth state value for the crop that is calculated based on an image of a field or the crop that is acquired by a camera. A model correction unit corrects the growth assessment model depending on the comparison result from the difference determination unit.