A drive unit for air vehicle, which allows building the vertical take-off and landing vehicles, intended for use, for instance, in the production of flying taxis, as well as in the model-making branch and in the toy industry.

The drive unit is composed of the air channel, in the form of a straight segment of a tube with circular section, which has fans with engines fixed on its both ends. The vertical draft force outlet-inlet nozzle opening is located between fixed fans of the drive unit.

The present application relates to a landing ramp, which includes a ramp body; the ramp body includes an inclined ramp, a granule retaining dam disposed at the lower end of the inclined ramp and protruding from a slope of the inclined ramp, and a deceleration ramp disposed on one side of the granule retaining dam away from the inclined ramp; a dry snow grass sliding blanket is provided on the deceleration ramp, a dry snow granule layer is provided on the inclined ramp and the dry snow grass sliding blanket; the dry snow grass sliding blanket includes a mounting mesh plate and a dry grass body provided on the mounting mesh plate, there are multiply dry grass body spacingly distributed, a dry snow granule is filled between the dry grass bodies, the aperture of the mounting mesh plate is smaller than the diameter of a dry snow granule.

Provided is an information processing device including: a sensor data acquisition unit configured to acquire sensor data provided by a sensor worn by a user or mounted on a piece of equipment used by the user; an action detection unit configured to detect an action of the user on a basis of the sensor data, the action including a turn; and an information generation unit configured to generate information regarding the turn.

The invention relates to a method for detecting and calculating the duration of a jump effected by an individual, comprising the following steps: Detection of a moment associated with a landing following the jump, this step comprising a sub-step of detecting an acceleration peak of an amplitude greater than a first threshold amplitude, within the acceleration measurements provided by a three-axis accelerometer, on board a watch worn on the wrist of the individual. Detection of a jump phase, by detection, in a temporal window finishing at the moment of landing, of a succession of acceleration measurements between 0 g and 0.5 g during a duration greater than a first threshold duration.

A system or method for displaying a video segment recorded by a camera device on a display device disposed remotely from the camera device. Video segments may be transmitted over a network to a remote viewing location. Video segments sent from a plurality of camera devices may be compiled by a server and displayed on a single display device. Video segments may auto-scroll such that a user need not interact with this display device to begin playback of a video segment. The technology may be used for such purposes as an athlete reviewing videos captured by one or more coaches or spectators.

The invention relates to a method for detecting and calculating the duration of a jump effected by an individual, comprising the following steps: Detection of a moment associated with a landing following the jump, this step comprising a sub-step of detecting an acceleration peak of an amplitude greater than a first threshold amplitude, within the acceleration measurements provided by a three-axis accelerometer, on board a watch worn on the wrist of the individual. Detection of a jump phase, by detection, in a temporal window finishing at the moment of landing, of a succession of acceleration measurements between 0 g and 0.5 g during a duration greater than a first threshold duration.

A system or method for displaying a video segment recorded by a camera device on a display device disposed remotely from the camera device. Video segments may be transmitted over a network to a remote viewing location. Video segments sent from a plurality of camera devices may be compiled by a server and displayed on a single display device. Video segments may auto-scroll such that a user need not interact with this display device to begin playback of a video segment. The technology may be used for such purposes as an athlete reviewing videos captured by one or more coaches or spectators.

A drive unit for air vehicle, which allows building the vertical take-off and landing vehicles, intended for use, for instance, in the production of flying taxis, as well as in the model-making branch and in the toy industry. The drive unit is composed of the air channel, in the form of a straight segment of a tube with circular section, which has fans with engines fixed on its both ends. The vertical draft force outlet-inlet nozzle opening is located between fixed fans of the drive unit.