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公开(公告)号:US11809201B1
公开(公告)日:2023-11-07
申请号:US18324171
申请日:2023-05-26
发明人: Xianbo Xiang , Chuan Liu , Shaolong Yang , Gong Xiang , Qin Zhang
CPC分类号: G05D1/048 , B63G8/24 , B63G8/18 , B63G2008/004
摘要: The disclosure provides a method and system for hierarchical disturbance rejection depth tracking control of an underactuated underwater vehicle, and the depth tracking of the underactuated underwater vehicle is divided into kinematic layer guidance and dynamic layer pitch tracking. Adaptive line of sight guidance is used in the kinematic layer to convert a depth error into a desired pitch angle and to estimate and compensate an angle of attack to reject disturbance introduced by an unmeasurable true angle of attack. Based on the above, in the dynamic layer, the active disturbance rejection sliding mode pitch tracking method is used to observe a composite disturbance including an unknown dynamic model and an environmental disturbance by using the active disturbance rejection framework. The model is compensated as a unified integral series type, a sliding mode control law is finally designed to resist an observation error, and a control elevator angle is calculated.
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公开(公告)号:US11747810B2
公开(公告)日:2023-09-05
申请号:US17246973
申请日:2021-05-03
CPC分类号: G05D1/0094 , G01B5/18 , G01B17/02 , G05D1/024 , G05D1/027 , G05D1/0255 , G05D1/048 , G05D2201/0207
摘要: Indoors positioning and navigation systems and methods are described herein. In one embodiment, a system for inspecting or maintaining a storage tank includes a vehicle having: at least one sensor for determining properties of a storage tank and a navigation system. The navigation system includes an acoustic transmitter carried by the vehicle and an inertial measurement unit (IMU) sensor configured to at least partially determine a location of the vehicle with respect to the storage tank. The vehicle also includes a propulsion unit configured to move the vehicle within the storage tank, and an acoustic receiver fixed with respect to the storage tank. The vehicle moves inside the storage tank in concentric arcs with respect to the acoustic receiver.
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公开(公告)号:US11774962B2
公开(公告)日:2023-10-03
申请号:US16498981
申请日:2018-03-30
发明人: Kangsoo Kim , Hiroyuki Yamato
CPC分类号: G05D1/0038 , B63B79/40 , B63C7/02 , B63G8/001 , G05D1/0206 , G05D1/048 , B63G2008/005
摘要: When on-water control means 20 having moving means and capable of moving near a water surface controls a multiple underwater vehicles 30 which cruise in water, the moving means 23 controls movement of the on-water control means 20 such that the multiple underwater vehicles 30 are located in a control region X where the on-water control means 20 can position the multiple underwater vehicles 30 utilizing acoustic positioning means 24 provided in the on-water control means 20. According to this, it is possible to deploy and operate the multiple underwater vehicles in water and safely and efficiently carry out survey operation and the like such as water bottom exploration.
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公开(公告)号:US20180346082A1
公开(公告)日:2018-12-06
申请号:US15750713
申请日:2016-08-09
CPC分类号: B63G8/001 , B63B2211/02 , B63G8/22 , B63G2008/004 , G01V1/184 , G01V1/3852 , G05D1/048
摘要: A method of obtaining data with a sensor of an autonomous underwater vehicle (AUV), the AUV comprising a bladder which contains a gas and is exposed to ambient water pressure. A downward thrust force is generated which causes the AUV to descend through a body of water, wherein the bladder contracts as the AUV descends due to an associated increase in the ambient water pressure, the contraction of the bladder causing the gas to compress and the AUV to become negatively buoyant. Next the AUV lands on a bed of the body of water. After the AUV has landed on the bed, the sensor is operated to obtain data with the AUV stationary and negatively buoyant and a weight of the AUV supported by the bed. After the data has been obtained, an upward thrust force is generated which overcomes the negative buoyancy of the AUV and causes the AUV to ascend through the body of water, the ascent of the AUV causing the bladder to expand due to the associated decrease in the ambient water pressure, the expansion of the bladder causing the gas to decompress and the AUV to become neutrally buoyant.
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公开(公告)号:US10081416B2
公开(公告)日:2018-09-25
申请号:US15345472
申请日:2016-11-07
申请人: Raytheon Company
发明人: Steven J. Elder
CPC分类号: B63G8/001 , B63G8/14 , B63G2008/004 , G05D1/048
摘要: An autonomous underwater vehicle (AUV) is disclosed for transporting and delivering a positively buoyant payload and/or a negatively buoyant payload to a destination. The AUV can be gravitationally propelled through the sea. The AUV can comprise a flexible vehicle body that receives a positively buoyant payload (e.g., incompressible fluid, like fuel) and can comprise a negative buoyancy component (e.g., elongated spine, electronics, cargo, etc.). A weight of the negative buoyancy component is correlated to a volume of the positively buoyant payload whereby the AUV is substantially neutrally buoyant at sea. The positively buoyant payload can be hydrostatically pressurized to hydrodynamically shape the body. The vehicle body can be collapsible for storage. The AUV can collect underwater intelligence data and transmit said data when surfacing. The AUV can loiter at sea for long periods of time. Associated system and methods are disclosed for transporting a positively buoyant payload with an AUV.
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公开(公告)号:US20180127073A1
公开(公告)日:2018-05-10
申请号:US15345472
申请日:2016-11-07
申请人: Raytheon Company
发明人: Steven J. Elder
CPC分类号: B63G8/001 , B63G8/14 , B63G2008/004 , G05D1/048
摘要: An autonomous underwater vehicle (AUV) is disclosed for transporting and delivering a positively buoyant payload and/or a negatively buoyant payload to a destination. The AUV can be gravitationally propelled through the sea. The AUV can comprise a flexible vehicle body that receives a positively buoyant payload (e.g., incompressible fluid, like fuel) and can comprise a negative buoyancy component (e.g., elongated spine, electronics, cargo, etc.). A weight of the negative buoyancy component is correlated to a volume of the positively buoyant payload whereby the AUV is substantially neutrally buoyant at sea. The positively buoyant payload can be hydrostatically pressurized to hydrodynamically shape the body. The vehicle body can be collapsible for storage. The AUV can collect underwater intelligence data and transmit said data when surfacing. The AUV can loiter at sea for long periods of time. Associated system and methods are disclosed for transporting a positively buoyant payload with an AUV.
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公开(公告)号:US08935014B2
公开(公告)日:2015-01-13
申请号:US12814304
申请日:2010-06-11
CPC分类号: G05D1/0287 , B64D1/02 , B64D17/00 , F41H13/00 , F42B12/365 , F42B12/58 , G05D1/0011 , G05D1/0206 , G05D1/048 , Y10S901/01
摘要: A method and system for gathering information from and setting up a surveillance network within an earth-surface environment that includes inserting one or more mobile robotic devices having a sensing subsystem, a communications subsystem, and a navigation subsystem into an earth-surface environment. The mobile robotic device may be configured into a traveling pose selected from a plurality of available traveling poses, and directed using the navigation subsystem to a sensing location within the earth-surface environment. The environment may be monitored and sensed information collected may be stored or communicated to a remote location. The mobile robotic device may be configured to operate with a vehicle carrier to facilitate insertion and deployment of the robotic vehicle into the earth-surface environment.
摘要翻译: 一种用于在地球表面环境内收集信息并建立监视网络的方法和系统,其包括将具有感测子系统,通信子系统和导航子系统的一个或多个可移动机器人设备插入到地球表面环境中。 移动机器人装置可以被配置成从多个可用行进姿势中选择的行进姿态,并且使用导航子系统指导到地球表面环境内的感测位置。 可以监测环境并且收集的感测信息可以被存储或传送到远程位置。 移动机器人装置可以被配置为与车辆载体一起操作,以便于将机器人车辆插入和展开到地球表面环境中。
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公开(公告)号:US11953321B2
公开(公告)日:2024-04-09
申请号:US17428891
申请日:2020-01-29
申请人: IDROP AS
发明人: Kyrre J. Tjøm
CPC分类号: G01C13/002 , B63B79/15 , B63G8/001 , B63G8/20 , G01C21/20 , G05D1/048 , G05D1/10 , B63G2008/002
摘要: The invention relates to a method for determining a water current velocity profile in a water column by registration of a deviation between a first position and a second position of an underwater vehicle travelling in the water column. A batch of underwater vehicles is deployed from a surface vessel into the water. The vehicle(s) steers to the first position, which for the first batch is a predefined estimated position (PEP). The vehicle is by first means recording the second position, which is the actual position (AP). The difference ΔP between the predefined estimated position PEP and the actual position is registered and based on the difference a deviation data set is calculated. An updated current profile or stack of horizontal water current velocities UV is determined.
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公开(公告)号:US20190042003A1
公开(公告)日:2019-02-07
申请号:US16163563
申请日:2018-10-17
发明人: Scott Edward Parazynski , Jeffrey William Bull , Nicholas Michael Degnan , Radley Angelo , Alina Mercedes Matson , Mike Lui
IPC分类号: G06F3/0346 , G08B5/36 , G05D1/00
CPC分类号: G06F3/0346 , G05D1/0011 , G05D1/0022 , G05D1/0206 , G05D1/048 , G08B5/36
摘要: A hand controller for commanding or controlling a target, such as a remote vehicle or a virtual target, includes a display mounted on a free end of a joystick for indicating graphically a direction of the remote vehicle from the hand controller and an orientation of the target relative to the hand controller's frame of reference, based on the location and orientation of the target received by the hand controller from the target and the location and orientation of the hand controller.
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公开(公告)号:US20180188400A1
公开(公告)日:2018-07-05
申请号:US15822872
申请日:2017-11-27
发明人: Young-Jun KIM , Nam-Hyung Koo , Ho-Young Lee , Soon Hong Cheong , Jong Hwa Chun , Jung Ki Kim , Kyu Duk Hwang , SungDoo Hong , Sin Heo , GiDon Moon , CheolHun Jeong
CPC分类号: G01V1/3817 , B63B2035/008 , G01V1/003 , G01V1/186 , G01V1/201 , G01V1/3808 , G01V1/3843 , G05D1/0202 , G05D1/0206 , G05D1/048
摘要: The present invention relates to a system for marine seismic refraction survey using a remotely piloted air/water drone and a method thereof for acquiring refracted wave by providing a receiver on the air/water drone among marine seismic methods, being configured to include: a surveyvessel provided with a seismicsource generating a sound; and the air/water drone moving tethered to the surveyvessel while floating on the sea or operating under water and being capable of moving to a desired location by generating a lift force and a turning force through remote control. In addition, the system is to be used for marine seismic refraction survey by providing a hydrophone and streamer and a recording system which may record the seismic wave on an air/water drone, a remotely piloted marine observation system, whereby an effect is given to be able to acquire data of seismic refraction.
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