To easily grasp a relationship of parameter values which influence a log velocity of a ship, with the log velocity of the ship caused by the parameters, a ship characteristic estimating device is provided, which includes a data outputter configured to output a plurality of parameter data respectively including rotational speed data of a propeller of a ship, and wind velocity vector data of wind force that may act on the ship, and an estimator configured to receive the plurality of parameter data outputted from the data outputter, estimate values corresponding to the respective parameter data to be log velocity vectors of the ship, and output them as first output values. The rotational speed data are same as each other and the wind velocity vector data are different from each other.

To easily grasp a relationship of parameter values which influence a log velocity of a ship, with the log velocity of the ship caused by the parameters, a ship characteristic estimating device is provided, which includes a data outputter configured to output a plurality of parameter data respectively including rotational speed data of a propeller of a ship, and wind velocity vector data of wind force that may act on the ship, and an estimator configured to receive the plurality of parameter data outputted from the data outputter, estimate values corresponding to the respective parameter data to be log velocity vectors of the ship, and output them as first output values. The rotational speed data are same as each other and the wind velocity vector data are different from each other.

Methods and apparatus for reducing energy consumed by drones during flight are disclosed. A drone includes a housing, a motor, and a route manager to generate a route for a flight of the drone based on wind data. The wind data includes turbine-generated wind data provided by turbines that detect airflows received at the turbines. The turbines are located in an area within which a segment of the flight of the drone is to occur. The route is to be followed by the drone during the flight to reduce energy consumed by the drone during the flight.

Methods and apparatus for reducing energy consumed by drones during flight are disclosed. A drone includes a housing, a motor, and a route manager to generate a route for a flight of the drone based on wind data. The wind data includes turbine-generated wind data provided by turbines that detect airflows received at the turbines. The turbines are located in an area within which a segment of the flight of the drone is to occur. The route is to be followed by the drone during the flight to reduce energy consumed by the drone during the flight.

A method for evaluating power characteristics of wind turbines, an apparatus and a storage medium. By means of verifying master control operating data of the wind turbines (1), correcting nacelle wind speed data (2), and calculating a power curve of the wind turbines and a guarantee value for the power curve, a wind turbine power characteristics evaluation result (3) is obtained. The present method economically and efficiently evaluates a power characteristics curve for wind turbines, makes full use of existing operating data of the wind turbine master control system, and performs evaluation of the power characteristics of wind turbines of a same model in a wind farm. The method ensures accuracy and test efficiency, and controls test times within one month, thereby ensuring the reliability and high efficiency of the wind turbines.

A method for evaluating power characteristics of wind turbines, an apparatus and a storage medium. By means of verifying master control operating data of the wind turbines (1), correcting nacelle wind speed data (2), and calculating a power curve of the wind turbines and a guarantee value for the power curve, a wind turbine power characteristics evaluation result (3) is obtained. The present method economically and efficiently evaluates a power characteristics curve for wind turbines, makes full use of existing operating data of the wind turbine master control system, and performs evaluation of the power characteristics of wind turbines of a same model in a wind farm. The method ensures accuracy and test efficiency, and controls test times within one month, thereby ensuring the reliability and high efficiency of the wind turbines.

An aerodynamic measurement probe intended to measure a local angle of attack of an airflow circulating along the fuselage of an aircraft, the support comprising a circular cover with a central opening which is passed through by the mobile shaft, the outer surface of the cover comprising a frustoconical face exhibiting symmetry of revolution about the longitudinal axis, the cover comprising polyether ether ketone reinforced with glass or carbon fibers, with a thermal conductivity of less than 3 W.m.sup.?1.Math.K.sup.?1 and being provided with metallic inserts at its fastenings, at least one metallic electrical continuity insert being configured to establish an electrical connection between the inner part of the probe and an interface of the metallic insert disposed under the lower periphery of that part of the metallic insert which is furthest away from the shaft.

This angle-of-attack sensor, in particular for an aircraft, of the type including a sensor body (11) on which a wind vane (12) is mounted movable in rotation by a flow, is characterized in that the wind vane (12) includes at least one deflector (13, 14) extending from the leading edge of this wind vane over at least part of the intrados and/or extrados thereof.

An autonomous vehicle includes a detection system for identifying the presence changes in wind incident on the autonomous vehicle, particularly wind gusts. The detection system may include one or more wind sensors, particularly those configured to detect wind incident on the vehicle from a direction that is transverse or perpendicular to the direction of motion of the autonomous vehicle. Additionally, systems may be present that correlate the detected wind gusts to changes in the behavior of the autonomous vehicle. The autonomous vehicle may react to the detected wind gusts by altering the vehicle's trajectory, by stopping the vehicle, or by communicating with a control center for further instructions.

A machine is disclosed for wind sensing on sailboats. Wind is important for sailing, but sailboats lean away from the wind when under sail. Vertical wind angles reduce the accuracy of existing anemometers. The cup blades disclosed here do not lose rotation speed when heeling over. Since it is now easy to have a sophisticated chartplotter display on a mobile device in waterproof case even on small boats, this waterproof wind sensor is a wireless appcessory that can talk to smartphones, tablets, computers, e-readers and marine electronics. The circuit board is encapsulated and is itself the wind direction arrow. A fluxgate compass on the circuit board provides wind direction. The apparatus is solar-powered, so there is no wiring to install or chafe. This allows a further inventive step for raising the anemometer using the mast track without needing to climb up or lower the mast.