The present invention relates generally to autonomous unmanned underwater and surface vehicles, and more specifically, to a vehicle capable of functioning as both an underwater glider and a surface sailing vehicle.
Autonomous underwater vehicles (AUVs) and autonomous surface vehicles (ASVs) have been widely used for various applications, such as oceanographic data collection, surveillance, and environmental monitoring. However, existing AUVs and ASVs are typically designed to operate either underwater or on the surface, but not both. This limitation restricts their versatility and adaptability in different marine environments and mission scenarios.
Moreover, conventional submersible vessels, such as manned submarines, often rely on diesel-electric or nuclear propulsion systems, which can be expensive to construct and operate. Additionally, the size of these vessels is typically large to accommodate the necessary electrical power and guidance systems, further increasing their cost and complexity.
Furthermore, there is a continuous need for propulsion in both underwater and surface modes, which can be challenging for a single craft to efficiently operate in both modes. Conventional underwater gliders may be inadequate in some situations, as they are not designed to function effectively on the surface.
There is, therefore, a need for an autonomous vehicle that can efficiently operate in both underwater and surface modes, providing increased versatility and adaptability for various marine environments and mission requirements.
The present disclosure relates to a vehicle capable of functioning as both an underwater glider and a surface sailing vehicle. The vehicle comprises a body with a hull. A first fin and a second fin are attached to a rotating body, the first fin and the second fin projecting laterally and outwardly from the hull, each fin having opposite top and bottom surfaces and being pivotable relative to the body. An actuator is located within the rotating body for independently adjusting the angle of each fin. Ballast weights are positioned inside the fins, configured to change the roll angle of the vehicle in underwater mode or to provide stability in surface mode. A compartment is configured within the body for containing at least one other vehicle or system, the compartment including an opening and a vehicle receiving and launching element. A variable-buoyancy propulsion system is carried by the body, wherein the variable-buoyancy propulsion system causes the vehicle to alternately descend and ascend in water.
In an embodiment, the actuator is operable to independently operate one of the first fin or the second fin.
In an embodiment, the vehicle further comprises solar panels on the fins for recharging batteries and antennas for positioning and sending data, providing redundancy in case of component failure and preventing marine growth on the fins during long-range surface operations. The vehicle may collect any type of desirable data, including without limitation, oceanographic data.
In an embodiment, the vehicle is configured to automatically switch between surface mode and underwater glider mode based on predetermined conditions. In an embodiment, the predetermined conditions include water depth, power level of the vehicle, or a time value.
In an embodiment, the vehicle is an Autonomous Unmanned Surface Vehicle (AUSV).
In an embodiment, the ballast weights can move inside the fins to change the roll angle of the vehicle in underwater mode or to provide stability in surface mode.
In an embodiment, the compartment within the body is capable of launching and receiving at least one other vehicle or system.
In an embodiment, the vehicle is configured to operate in an underwater glider mode, collecting oceanographic data and gliding along water currents while descending or ascending.
The present disclosure also relates to a method for enabling a vehicle to function as both an underwater glider and a surface sailing vehicle, the vehicle comprising a body with a hull, a first fin, a second fin, and an actuator. The method comprises attaching the first fin and the second fin to a rotating body, the first fin and the second fin projecting laterally and outwardly from the hull, each fin having opposite top and bottom surfaces and being pivotable relative to the body; independently adjusting the angle of each fin using the actuator located within the rotating body; moving ballast weights inside the fins to change the roll angle of the vehicle in underwater mode or to provide stability in surface mode; operating the vehicle in a surface mode or an underwater glider mode; and providing a compartment within the body for containing at least one other vehicle or system, the compartment including an opening and a vehicle receiving and launching element.
Various objectives and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings wherein are set forth, by way of illustration and example, certain embodiments of this invention. The drawings submitted herewith constitute a part of this specification, include exemplary embodiments of the present invention, and illustrate various objects and features thereof.
The accompanying drawings illustrate several embodiments and, together with the description, serve to explain the principles of the invention according to the embodiments. It will be appreciated by one skilled in the art that the particular arrangements illustrated in the drawings are merely exemplary and are not to be considered as limiting of the scope of the invention or the claims herein in any way.
In the following discussion that addresses a number of embodiments and applications of the present invention, reference is made to the accompanying drawings that form a part thereof, where depictions are made, by way of illustration, of specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized, and changes may be made without departing from the scope of the invention. Wherever possible, the same reference numbers are used in the drawings and the following description to refer to the same or similar elements.
In the following detailed description, numerous specific details are set forth by way of examples in order to provide a thorough understanding of the relevant teachings. However, it should be apparent to those skilled in the art that the present teachings may be practiced without such details. In other instances, well known structures, components and/or functional or structural relationship thereof, etc., have been described at a relatively high-level, without detail, in order to avoid unnecessarily obscuring aspects of the present teachings.
Throughout the specification and claims, terms may have nuanced meanings suggested or implied in context beyond an explicitly stated meaning. Likewise, the phrase “in one embodiment/example” as used herein does not necessarily refer to the same embodiment and the phrase “in another embodiment/example” as used herein does not necessarily refer to a different embodiment. It is intended, for example, that claimed subject matter include combinations of example embodiments in whole or in part.
Conditional language used herein, such as, among others, “can,” “could,” “might,” “may,” “e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and or steps. Thus, such conditional language is not generally intended to imply that features, elements and or steps are in any way required for one or more embodiments, whether these features, elements and or steps are included or are to be performed in any particular embodiment.
The terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations and so forth. Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list. Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to convey that an item, term, etc. may be either X, Y, or Z. Thus, such conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y, and at least one of Z to each be present. The term “and or” means that “and” applies to some embodiments and “or” applies to some embodiments. Thus, A, B, and or C can be replaced with A, B, and C written in one sentence and A, B, or C written in another sentence. A, B, and or C means that some embodiments can include A and B, some embodiments can include A and C, some embodiments can include B and C, some embodiments can only include A, some embodiments can include only B, some embodiments can include only C, and some embodiments include A, B, and C. The term “and of” is used to avoid unnecessary redundancy. Similarly, terms, such as “a, an,” or “the,” again, may be understood to convey a singular usage or to convey a plural usage, depending at least in part upon context. In addition, the term “based on” may be understood as not necessarily intended to convey an exclusive set of factors and may, instead, allow for existence of additional factors not necessarily expressly described, again, depending at least in part on context.
While exemplary embodiments of the disclosure may be described, modifications, adaptations, and other implementations are possible. For example, substitutions, additions, or modifications may be made to the elements illustrated in the drawings, and the methods described herein may be modified by substituting, reordering, or adding stages to the disclosed methods. Thus, nothing in the foregoing description is intended to imply that any particular feature, characteristic, step, module, or block is necessary or indispensable. Indeed, the novel methods and systems described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions, and changes in the form of the methods and systems described herein may be made without departing from the spirit of the invention or inventions disclosed herein. Accordingly, the following detailed description does not limit the disclosure. Instead, the proper scope of the disclosure is defined by the appended claims.
Reference is made to
Additionally, the fins 108, 110 are adaptable for integration of solar panels and antennas, which are not shown in
The main hull 106 includes a deployment mechanism, not detailed in
In its underwater mode, known as ‘glider’ mode, the vehicle 102 can gather a variety of oceanographic data, such as bathymetry, seawater characteristics, and acoustic measurements. The vehicle's design allows for efficient gliding through water currents, with capabilities for both vertical descent and ascent.
The symmetrical configuration of fins 108, 110 offers redundancy in the event of component failure and also helps in preventing marine growth on the fins during prolonged surface operations.
In accordance with some alternative embodiments, the vehicle 102 may include variations in fin design, such as adjustable fin angles or shapes, to optimize sailing efficiency or underwater maneuverability. Additionally, alternative energy sources, like wind turbines or wave energy converters, could be incorporated to supplement or replace solar panels, broadening the vehicle's operational range and duration.
Furthermore, the vehicle's communication systems could be diversified to include satellite communication capabilities or underwater acoustic communication systems, enhancing data transmission options, especially in remote or deep-sea environments. As mentioned above, in exemplary embodiments, the vehicle may collect any type of desirable data, including without limitation, oceanographic data.
To configure the autonomous unmanned underwater and sailing vehicle 102 for surface operation, as shown in
In an embodiment, the fin 108 can include a hydrofoil configured to generate a force vector in response to movement of air thereover, and a trailing edge fin that is located proximate the trailing edge of the main wing member and is employed in adjusting the angle of attack of the main wing member relative to the wind and also cooperates with the main wing member in generating propulsive force. In this example, fin 108 extends upwardly generally vertically from hull 106 when erected, and is suitably formed of a lightweight, substantially rigid material such as molded fiber composite material or aluminum alloy, e.g., trailing fin member may be formed of the same or a similar material. In cross-section, the fin member is preferably configured as an airfoil that generates propulsive force (analogous to upward “lift” of an aircraft wing, but in a generally horizontal direction) regardless of whether the angle of attack is to the right or left of the wind, suitable foil configurations being known to those skilled in the relevant art.
In the embodiment, the fins 108 and fin 110 respectively house ballast weights 114 and 116 that can move inside respective fins to change the roll angle of the vehicle 102 (in underwater mode) or to give it stability in surface mode.
The attachment of the fins 108, 110 to the rotating body 112 is executed using appropriate means, which could range from mechanical fastenings to advanced joining techniques known in the art. These means are selected to ensure a robust and reliable connection while allowing for the necessary movement and rotation of the fins.
The rotating body 112 includes conical gears 206a, 206b, along with a motor gear 204. The conical gears 206a, 206b and the motor gear 204 work in unison to adjust the orientation of the fin 108. The adjustment of the fins involves the precise movement of the gears, driven by the motor gear 204, to manipulate the positioning and orientation thereof. The operation of the conical gears 206a, 206b and the motor gear 204 is vital for the fin's operation, whether in wind-powered propulsion for surface navigation or in control for underwater maneuvering.
Similarly, the fin 110 is adjusted by a corresponding set of conical gears and a motor gear, which, although not shown in
In accordance with some alternative embodiments, the conical gears and the motor gears can include variations in the gear and motor configurations. For instance, the rotating body 112 could employ different types of gears, such as spur gears or helical gears, depending on the required torque and speed characteristics for fin adjustments. Similarly, the motors used in conjunction with these gears could vary in terms of type and power, including options such as stepper motors or brushless DC motors, to achieve more precise control or higher efficiency.
Furthermore, the attachment means of the fins 108, 110 to the rotating body 112 may also have alternative embodiments. Such alternative embodiments may include quick-release mechanisms for easy maintenance or replacement of the fins, or modular attachment systems that allow for the interchangeability of fins with different designs or functionalities.
In one embodiment, the screw 302 is actuated by conical gears 304a, 304b, and a motor gear 306. The operation of the assembly of the screw 302, the conical gears 304a, 304b, and the motor gear 306 involves the rotation of screw 302, driven by the conical gears and motor gear. This rotation facilitates the movement of ballast weight 114 along the screw 302. In underwater mode, adjusting the position of ballast weight 114 along the screw 302 facilitates the altering the vehicle's roll angle, which is vital for maneuverability and stability during underwater navigation.
Conversely, in surface mode, the position and movement of the ballast weight 114 along screw 302 play a role in stabilizing the vehicle. The adjustment of the ballast weight affects the vehicle's center of gravity and overall stability, particularly important in surface conditions to counteract the effects of waves and wind.
While the screw adjustment system for positioning ballast weight 114 is illustrated in
The spine 408 acts as a mechanical link between a forward body 402 and an aft body 406. This linking facilitates coordinated movement and structural integrity between these two sections of the vehicle 102. In one embodiment, the spine 408 is connected to at least one of the motor gears, either 204 or 410. This connection facilitates transmission of motion and force from the motor gears to the entire structure, ensuring synchronized operations.
An additional aspect of this embodiment involves the use of a pinion gear, which is not explicitly shown in
According to alternative embodiments, the rotating body 112 can include different gear types, such as helical or bevel gears, which could be used in place of the cylindrical gears 404a and 404b for more efficient force transmission or to accommodate different spatial arrangements within the vehicle. Additionally, the motor gears could be varied in terms of size, power output, or type (e.g., stepper motors, servo motors) to suit different operational requirements or to enhance energy efficiency.
In accordance with some alternative embodiments, the spine 408 may include a telescopic design for adjustable length or the incorporation of flexible joints to allow for greater maneuverability. Moreover, the material composition of the spine could be varied to optimize for weight, strength, or resistance to environmental factors like saltwater corrosion.
The configuration of these components within the vehicle is instrumental in its operation both in underwater and surface modes. The fins 108, 110, integral for propulsion and maneuvering, are connected to the rotating body 112, which is central to the vehicle's ability to adjust fin orientation and position. The ballast weights 114 and 116, crucial for the vehicle's stability and buoyancy control, are maneuvered via screws 302 and 514. This screw mechanism is actuated by the associated conical gears 518a and 518b and motor gears 510, and 512, allowing precise control of the vehicle's roll angle and orientation.
The spine 408 provides a structural linkage between different sections of the vehicle, ensuring coordinated movement and integrity. The cylindrical gears 404a and 404b are part of the gear system that facilitates the rotation and actuation of various components.
It is important to note that the components detailed herein are exemplary and provided for illustrative purposes. A person of ordinary skill in the art may reorganize or consolidate these components without departing from the invention's scope, maintaining the same functionalities. Other components, readily understood by a skilled artisan, may also be incorporated without straying from the scope of the embodiments described.
In this embodiment, the fins 108, 110, crucial for maneuvering and propulsion, are connected to the rotating body 112. This rotating body, along with its associated gears and mechanisms, plays a vital role in fin adjustment and orientation, key to the vehicle's operational versatility. The ballast weights 114 and 116, adjustable via screws 302 and 514, are integral in controlling the vehicle's buoyancy and stability, particularly in the underwater mode.
The conical and cylindrical gears, along with the motor gears, form the core of the actuation system, enabling precise and controlled movement of the fins and ballast weights. These gear systems, working in conjunction with the spine 408, ensure coordinated and efficient operation of the vehicle's various sections.
The main hull 106 is a central structural component of the vehicle 102, providing the necessary buoyancy and stability for both underwater and surface operations. Within the main hull 106, the compartment 602 is designed as a versatile and functional space that can accommodate additional systems, enhancing the vehicle's operational capabilities.
The compartment 602, as depicted in
Alternative embodiments may include a single large door or multiple smaller doors, depending on the size and type of systems intended for deployment. The mechanism for opening and closing these doors can also be varied. While electrical operation is specified, other mechanisms, such as hydraulic or pneumatic systems, could be employed for different operational requirements or to achieve specific performance characteristics.
Additionally, the interior of compartment 602 can be designed to accommodate a wide range of systems besides drones. For example, it could be configured to house underwater research equipment, communication devices, or environmental sensors. The compartment could also include customizable mounting systems, power supply connections, and data interface ports to support various types of equipment.
In the depicted embodiment, the helipad 604 is strategically positioned and designed to be deployed when the doors of the compartment 602, mentioned in the context of
While helipad 604 is shown in
At block 702, the vehicle operates in the surface mode. In the surface mode, the AUUSV (interchangeably referred to as vehicle 102 in the present disclosure) is primarily focused on tasks such as data collection, navigation to predetermined locations, and recharging its power systems. Data collection in this mode might involve environmental monitoring, geographical mapping, or other surface-level observations. The ability to navigate to specific locations autonomously is crucial for targeted missions or exploratory endeavors, while the recharging of power systems ensures sustained operational capability, likely harnessing renewable energy sources such as solar power.
At block 704, the vehicle operates in the glider mode. Transitioning to the glider mode, the AUUSV engages in collecting oceanographic data, which includes but is not limited to bathymetry, seawater parameters, and noise recordings. This mode leverages the natural ocean currents to glide, thereby conserving energy while efficiently traversing underwater landscapes. The vehicle's ability to ascend and descend in the water column is pivotal in gathering diverse and comprehensive oceanographic data.
At block 708, the AUUSV's control system is designed to detect and respond to one or more predetermined conditions to optimize its operation. These conditions could include, for example, the depth of the water body being below a certain value, the power level of the AUUSV dropping below a set threshold, or a specific time value being reached.
At block 710, upon satisfying any of these predetermined conditions, the control system is configured to automatically switch between the surface mode and the glider mode, ensuring that the AUUSV operates optimally under varying circumstances.
In addition to the embodiments described, alternative configurations can be included within the scope of the invention. For instance, the control system could be enhanced with machine learning algorithms to improve decision-making in mode switching, based on historical data and predictive analytics. Furthermore, the criteria for switching between modes could be expanded to include additional environmental factors like water temperature, salinity, or presence of certain chemical markers.
Referring now to
At block 804, the method 800 includes independently adjusting the angle of each fin using the actuator located within the rotating body. An actuator is located within the rotating body and is used to independently adjust the angle of each fin. This allows for precise control of the vehicle's movement and stability in both underwater glider mode and surface mode. The actuator may be driven by an electric motor or other suitable means, and may be controlled by a microcontroller or other control system.
At block 806, the method 800 includes moving ballast weights inside the fins to change the roll angle of the vehicle in underwater mode or to provide stability in surface mode. Ballast weights are positioned inside the fins and can be moved to change the roll angle of the vehicle in underwater mode or to provide stability in surface mode. The movement of the ballast weights may be controlled by a separate actuator or by the same actuator used to adjust the angle of the fins. The ballast weights may be moved along a track or other suitable mechanism within the fins.
At block 808, the method 800 includes operating the vehicle in a surface mode or an underwater glider mode, wherein the first fin and the second fin function as sails and stabilizing keels. The vehicle can be operated in either a surface mode or an underwater glider mode. In surface mode, the first fin and the second fin function as sails and stabilizing keels, allowing the vehicle to sail on the water's surface. In underwater glider mode, the vehicle uses its variable-buoyancy propulsion system to move forward while alternately descending and ascending through the water column. The fins also provide stability and control during underwater gliding operations.
At block 810, the method 800 includes providing a compartment within the body for containing at least one other vehicle or system, the compartment including an opening and a vehicle receiving and launching element. A compartment is provided within the body of the vehicle for containing at least one other vehicle or system, such as a smaller underwater vehicle, a sensor package, or other payload. The compartment includes an opening and a vehicle receiving and launching element, which may be a mechanical arm, a docking mechanism, or other suitable means for launching and retrieving the contained vehicle or system. This compartment allows the vehicle to deploy and retrieve additional vehicles or systems during its mission, enhancing its capabilities and versatility.
Referring now
The system 900 further includes a SWARM protocol module 902. The SWARM protocol module 902 is configured to program the missions of the AUSVs 102 and enable the AUSVs 102 to explore the oceans autonomously. The SWARM protocol module 902 utilizes human-provided compute and storage capacity 902A to calculate current and next steps of the AUSVs 102. This allows the AUSVs 102 to operate without constant human intervention, increasing the efficiency and scope of ocean exploration.
A generative AI module 904 is also included in the system. The generative AI module 904 is configured to generate a Large Language Model (LLM) for underwater items based on data collected by the AUSVs 102. This LLM can be used to identify and categorize underwater items, contributing to the understanding and mapping of underwater environments. The system also provides a user interface 904A. The user interface 904A is accessible by users for leveraging the underwater LLM to build Natural Language Processing (NLP) solutions and services. These services can include, but are not limited to, underwater metaverse and games. This allows individuals and companies to utilize the data collected by the AUSVs 102 in a variety of innovative applications.
The system includes a layer 2 blockchain 906. The layer 2 blockchain 906 acts as a public ledger, configured to incentivize service providers and organize access to the underwater LLM. This ensures that the data collected by the AUSVs 102 is securely stored and accessible, promoting transparency and encouraging the development of new services based on the underwater LLM.
While the disclosure has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made, and equivalents may be substituted for elements thereof without departing from the scope of the disclosure. In addition, many modifications may be made to adapt a particular system, device, or component thereof to the teachings of the disclosure without departing from the essential scope thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiments disclosed for carrying out this disclosure, but that the disclosure will include all embodiments falling within the scope of the appended claims. Moreover, the use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The description of the present disclosure has been presented for purposes of illustration and description but is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope of the disclosure. The described embodiments were chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
This application claims priority to U.S. Provisional Application No. 63/384,828, filed on Nov. 23, 2022, the disclosure of which is incorporated by reference in its entirety.
Number | Date | Country | |
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63384828 | Nov 2022 | US |