149 results about "Sailing craft" patented technology

The invention belongs to the technical field of ship course control, and discloses an unmanned sailboat sail-rudder cooperative active-disturbance-rejection course control method based on ESO, and the method comprises the following steps: building a nonlinear course motion mathematical model; designing a self-adaptive tracking differentiator to smooth the expected course; the course, the yawing angular velocity, the sail aerodynamic moment and the comprehensive disturbance are observed in real time through ESO; based on a nonlinear state error feedback control law, in combination with the output of the tracking differentiator and the observed value of the ESO, generating a rudder torque control quantity, performing constraint processing on the rudder torque control quantity, and outputting a rudder angle instruction; and a dynamic optimal sail angle is decided according to the lift-drag ratio parameter, the apparent wind speed and the relative wind angle of the sail aerodynamic model corrected in real time, and a sail angle instruction is generated after the dynamic optimal sail angle is compensated and constrained by combining the course deviation. The adaptive capacity to the time-varying wind field and the model uncertainty is enhanced, and the anti-interference performance and the energy efficiency of the system are improved through dynamic optimization and compensation of the sail angle.

A system for sailing training includes at least one tuning parameter of a sailboat which can be set to multiple positions; a camera mounted on the sailboat for recording a video of a current position of the at least one tuning parameter; a mobile computing device for controlling the camera; an app executing on the mobile computing device for analyzing the position video of the at least one tuning parameter of the sailboat and for determining in real-time using AI how to modify the current position of the tuning parameter to maximize performance of the sailboat; and a notification generated by the mobile computing device for alerting a sailor to the preferred tuning parameter position.

1. The name of the design product: radio remote control sailboat model (Chinese Fu boat one Dan Yang ship). 2. The use of the design product: for decorative ornaments. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible when used, omit the top view. 6. The wooden rack in the design picture is not part of the protected design content.

The present application belongs to the technical field of unmanned sailboat, and particularly relates to a rigid wing sail self-balancing turning sail system of unmanned sailboat, which comprises a main sail skeleton, a main sail shell, a turning sail control box, a tail wing connecting rod assembly, a tail wing main body, a steering engine and a tail wing rope driving assembly. The driving end of the steering engine is controlled to move, and the tail wing main body is driven to rotate through the tail wing rope driving assembly, so as to adjust the deflection angle of the tail wing main body relative to the main sail as a whole, adjust the included angle (attack angle) between the main sail as a whole and the wind, and make the main sail as a whole reach a predetermined attack angle and keep a stable balance state. The mast of the main sail as a whole can rotate freely around the unmanned sailboat body, realizes the rotation decoupling of the rigid wing sail and the ship body, the bow shaking movement of the unmanned sailboat does not affect the attack angle of the rigid wing sail, the tail wing can be regarded as the air rudder of the main sail by adjusting the attack angle of the main sail through the tail wing, and the method makes the main sail attack angle adjustment more efficient and rapid, and reduces the adjustment power consumption.

The invention discloses a method for determining optimal water surface stability and underwater motion performance of a dual-mode unmanned sailboat. Firstly, based on ship stability specifications, the water surface initial stability height of a sailing ship under different heavy hammer masses is calculated, and the initial stability height range is determined; secondly, ship body recovery torque and wind tilting torque are calculated, static and dynamic heeling angles are determined, and the initial stability high range of the ship body is further narrowed; thirdly, calculating underwater stability, establishing an underwater motion model, and obtaining a hydrodynamic coefficient; then, simulation is carried out based on the underwater motion model, and the limit pitch angle and rising / diving height performance under different parameters are calculated. And finally, constructing a multi-objective optimization model and solving an optimal parameter combination. And selecting an optimal compromise scheme based on an ideal point method, and determining the final weight mass and propeller mounting angle. Unified optimization of the dual-mode performance is achieved, and the design efficiency and the comprehensive performance of the aircraft are remarkably improved.

The application belongs to the field of unmanned sailboat manufacturing, in particular to a lightweight wing sail of an unmanned sailboat and a processing method thereof. The lightweight wing sail of the unmanned sailboat comprises a carbon fiber wing sail shell and a metal framework. The metal framework is arranged at the lower part of the inner cavity of the carbon fiber wing sail shell. The carbon fiber wing sail shell comprises a carbon fiber wing sail shell side piece A and a carbon fiber wing sail shell side piece B. A plurality of hand holes are arranged on the carbon fiber wing sail shell side piece B. The carbon fiber wing sail shell and the metal framework are arranged, and the metal framework is arranged at the lower part of the inner cavity of the carbon fiber wing sail shell. The upper part of the inner cavity of the carbon fiber wing sail shell can be supported by the structure of the carbon fiber wing sail shell itself. The metal framework does not need to penetrate from top to bottom in the carbon fiber wing sail shell. The weight of the entire wing sail can be greatly reduced, the gravity center of the wing sail is lowered, the overall gravity center of the unmanned sailboat is lowered, the rolling stability and the anti-overturning ability of the unmanned sailboat are effectively ensured, and the installation structure is simple and easy to process.

This invention provides an angle-of-attack control device and a passive angle-of-attack airfoil sailboat, belonging to the field of passive angle-of-attack control for rigid sails. The angle-of-attack control device includes an airfoil sail and a rotating mechanism. The airfoil sail includes an airfoil sail surface, a mast, and a base matching the mast. The mast is perpendicular to the base and rotatably connected to the base. The mast is fixedly connected to the bottom of the airfoil sail surface. The rotating mechanism is located at the top of the airfoil sail surface. The rotating mechanism includes a motor and a rotating drum. The motor includes a rotation drive component, a speed-changing component, and an output shaft. The motor is located at the top of the airfoil sail surface, and the output shaft is parallel to the mast and fixedly connected to the rotating drum. This passive angle-of-attack airfoil sailboat includes a double hull and multiple angle-of-attack control devices, which are arranged in an array on the double hull. Using the angle-of-attack control device and passive angle-of-attack airfoil sailboat provided by this invention can solve the problems of excessively large airfoil sail structures, insufficient mainsail area, and insufficient propulsion in existing technologies.

The invention relates to a quadruple sailing boat (1) for fish farming in open or ocean sea areas, comprising at least one base structure (2), at least one seine (5), at least one driving and accommodation compartment (3), at least one sail system (4) and at least one storage silo (6), all of which are modular and / or detachable. According to the invention, the at least one base structure (2) comprises: at least two main floats (7) which are parallel and spaced apart from each other and are connected or fastened to each other by means of at least one arm (8); and at least two secondary floating bodies (9) adjacent to each of the at least two main floating bodies (7), the perimeter of the secondary floating bodies being smaller than the perimeter of the at least two main floating bodies (7), and the two secondary floating bodies being arranged parallel to each outboard and at a distance from the at least two main floating bodies.

The invention relates to the field of unmanned sailboat environment perception and path planning, and discloses an unmanned sailboat path planning method combining dynamic wind field reconstruction and an A star algorithm, and the method comprises the following steps: 1, environment modeling and initialization; 2, wind field data simulation and wind field preparation; step 3, executing A star algorithm path planning; 4, meteorological station wind field sampling; step 5, dynamic wind field reconstruction based on a Navier-Stokes equation is carried out; the efficient unmanned sailboat path planning method is provided by integrating a dynamic A star algorithm and a dynamic wind field reconstruction technology, and by means of dynamic wind field reconstruction and real-time updating based on a Navier-Stokes equation and in combination with the dynamic A star path planning algorithm, the path of the unmanned sailboat can be effectively planned. The optimal path selection of the unmanned sailboat can be realized in a complex wind field environment, the sailing time and energy consumption are reduced, and the sailing safety is improved at the same time.

The invention relates to a telescopic mast device (1) for a sail-powered vessel, the telescopic mast device (1) being erected along a specific elongation axis (O1) and including: - a stationary section (11) intended to be positioned above an upper deck (42) of the vessel; - a plurality of movable sections (10, 10A, 10B) coaxial with the stationary section (11), each upper movable section (10, 10A, 10B)—referred to as upper section (10B)—being slidably mounted in the movable section (10, 10A, 10B), which is directly lower—referred to as lower section (10A)—relative to the specific elongation axis (O1) of the mast; - angular indexing elements (2) configured to constrain a rotation of each upper section (10B) with respect to the lower movable section (10, 10A, 10B) located opposite, relative to the specific elongation axis (O1), the angular indexing elements (2) including at least one indexing shim (22) secured to an upper portion (102) of the upper section (10B), the at least one indexing shim (22) collaborating with at least one indexing rail (21) secured to the lower section (10A) located opposite the at least one indexing shim (22).

Vehicle with: - a DC network (101) comprising: a) a high-voltage busbar (104) operating at a first voltage level; b) a low-voltage busbar (106) operating at a second voltage level below the first voltage level; c) converters (138, 152, 156) configured to transfer current between different voltage levels by means of a conversion; - at least one high-voltage battery (130) configured to store current at the first voltage level and electrically connected to the high-voltage busbar (104) to transfer current to and from the high-voltage busbar (104); - electrical loads (100) comprising: a) high-voltage loads (114) connected to the high-voltage busbar (104) in parallel with the high-voltage battery (130) to be supplied at the first voltage level;b) Low-voltage loads (116) connected to the low-voltage busbar (106) to be supplied at the second voltage level; - an electronic control unit (BCU) configured to control at least one (152) of the converters (138, 152, 156) to regulate the energy / power flows in the DC network (101);characterized in that the DC network (101) also comprises a medium-voltage busbar (105) operating at a third voltage level between the first and second voltage levels, the vehicle also comprising means for generating electricity from renewable energy sources (139) wherein the means for generating energy from renewable energy sources (139) are connected to the medium-voltage busbar (105) so that current is supplied to the third voltage level and wherein the converters (138, 152, 156) comprise: - at least one first bidirectional DC-DC converter (138) arranged to transfer current between the high-voltage busbar (104) and the medium-voltage busbar (105) with a conversion between the first and third voltage levels;- at least one second DC-DC converter (152) arranged to transfer current from a high-voltage busbar (104) or a medium-voltage busbar (105) to the low-voltage busbar (106) with a conversion to the second voltage level from the first voltage level or the third voltage level.

1. Name of the product in this design: Fragrance (Sailboat). 2. Purpose of this design: Fragrance for improving the air quality in vehicles or indoors. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application discloses a kind of remote control sailboat main sail pole positioning adjusting mechanism and remote control sailboat, including being positioned in the positioning adjusting shell of mast near bottom, positioning adjusting shell is opened with first through slot that is penetrated up and down, transmission is provided with the rotating rod in first through slot, the top of rotating rod is hinged with main sail pole, the bottom of rotating rod is hinged with cable-stayed device, the end of cable-stayed device away from rotating rod is hinged main sail pole;Positioning adjusting shell is further provided with first positioning adjusting screw rod, one end of first positioning adjusting screw rod is located in long strip port, rotating rod can rotate and swing in first through slot, and the swing position of rotating rod can be limited by adjusting first positioning adjusting screw rod.Rotating rod can be automatically converted between inclined and vertical state under the guidance of first through slot, the tightness state of cable-stayed device is switched adaptively, without operator to adjust separately, completely solve the contradiction that the adjustment function of cable-stayed device exists different tightness requirements for cable-stayed device when wind and near wind.

The application discloses an unmanned sailboat virtual anchoring path tracking control method, and belongs to the technical field of unmanned ship motion control, which comprises virtual anchoring range expected cruise path planning, expert knowledge data collection and processing and an adversarial reverse reinforcement learning virtual anchoring path tracking algorithm, wherein the virtual anchoring range expected cruise path planning comprises marine environment wind flow field data reading and expected cruise path planning, the expert knowledge data collection and processing comprises an expert knowledge data collection method and a data compression processing method, and the adversarial reverse reinforcement learning virtual anchoring path tracking algorithm comprises an unmanned sailboat action and state space, an adversarial reverse reinforcement learning path tracking algorithm and a path tracking reward function. Through the application, the unmanned sailboat can not only be virtually anchored within a certain range of an anchoring point, but also can overcome the influence of wind interference force and wave interference force in the marine environment, track an expected cruise path within the virtual anchoring range, and realize high-precision virtual anchoring control.

The utility model discloses a sailboat type mental fortress, which relates to the related technical field of mental fortress, and comprises a mast, an arc-shaped sail bone is connected on the mast, a plurality of main beam main frames are connected between the sail bone and the mast, the main beam main frames are arranged in an array from top to bottom, a connecting baffle is arranged between every two main beam main frames, and the connecting baffle is connected with the mast. The main beam main frame is connected with a lamp box; the sail bones and the masts are connected and matched with the connecting baffles to form a plurality of connecting spaces, so that lamp boxes or advertising materials can be conveniently placed, and mounting and dismounting are convenient; the sail bone and the mast are combined to form the sail, so that the sail can be visually watched by people; the whole device is formed by combining steel frame structures, and connection and installation are convenient.

The application discloses an unmanned sailboat regional position keeping method and system, and determines whether the unmanned sailboat is in a regional position keeping range according to real-time position and regional position keeping information of the unmanned sailboat. Whether the regional position keeping range is in a forbidden area of the unmanned sailboat is determined according to the real-time position, the regional position keeping information and an environmental wind direction. If the regional position keeping range is in the forbidden area of the unmanned sailboat, the unmanned sailboat sails into the regional position keeping range in a zigzag mode. If the regional position keeping range is not in the forbidden area of the unmanned sailboat, the unmanned sailboat calculates an expected heading angle by using an integral LOS algorithm, and adjusts a posture of a sail according to a difference between the expected heading angle and a heading angle, so that the unmanned sailboat is always in the regional position keeping range. The application effectively solves a position error of the unmanned sailboat caused by factors such as ocean current when the unmanned sailboat performs a specific regional task, and ensures stable sailing and reliability of the unmanned sailboat when performing the specific regional task at sea.

1. Name of the product in this design: Craft Ornament (Sailboat). 2. Purpose of this design: decorative ornament. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of this design product: Flip-flops (sailboat). 2. The purpose of this design product: comfortable and easy to wear on the feet. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The application provides a kind of unmanned sailboat navigation performance prediction and wing sail attack angle control method fusing ocean current influence, and relates to unmanned sailboat navigation performance analysis technical field.First, the mechanical balance equation of unmanned sailboat is established according to the force and moment balance relationship under stable navigation state;Then solve the stable speed calculation problem of unmanned sailboat under the condition of given heading and wing sail attack angle alpha;For a given heading, the maximum steady-state sailing speed of unmanned sailboat is calculated when all wing sail attack angles alpha={1,…,90}°;Finally, the navigation performance of unmanned sailboat is analyzed, the maximum sailing speed reached by unmanned sailboat under different headings when sailing at a certain wind speed is obtained, and the corresponding best wing sail attack angle value when reaching the maximum sailing speed is obtained, and is predicted, combined with the required best wing sail attack angle value, wing sail angle control is carried out.

1. The name of the design product: intelligent remote control sailboat model. 2. The use of the design product: an intelligent remote control unmanned sailboat model for competition. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. Name of the product in this design: Vehicle Hanger (Split-Type Sailboat). 2. Purpose of this design: To be hung inside a vehicle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the product in this design: Assembled Craft (Sailboat Refrigerator Magnet). 2. Purpose of this design: This design is used for assembling handicrafts. 3. The key design features of this product are its shape and pattern, as well as the layout of each component in the assembly diagram. 4. The image or photograph that best illustrates the design highlights: Combined State 1 main view. 5. The back of this product is a part that is not easily seen or cannot be seen during use, so rear views of each component are omitted; this product is a thin product, so other views of each component are omitted.

An electric saildrive (2) for a sailing boat. The electric saildrive (2) comprises an elongate hollow shaft and an elongate transmission axle extending longitudinally within said elongate hollow shaft, and a hollow housing (8) surrounding the elongate hollow shaft. A pod housing (9) is rigidly connected to the end of said elongate hollow shaft and the transmission axle to extends into an inner compartment of the pod housing (9). The inner compartment accommodates an angle drive connecting the transmission axle to a propeller shaft (10) which extends from said inner compartment to the exterior of the pod housing (9) through a second aperture in a sealed manner. The hollow housing (8) has an elongate cross-section so as to pro-vide a fin-shape.

1. The name of the design product: silicone mold (sailboat ornament). 2. The use of the design product: silicone mold for making ornaments by dripping glue. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of this design product: Cutting Board Rack (Sailboat). 2. Purpose of this design product: to place a cutting board. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

A sailboat support includes a keel support platform, a mechanical linkage assembly, and rotating support arms to proportionally distribute the weight of the sailboat between the keel and the hull. The support is designed so that the keel bears the majority of the load while the hull receives proportional support through a flexible cradle. The system is self-adjusting, thus reducing the need for manual adjustments and improving ease of use and safety.