Abstract:
La présente invention se rapporte à un dispositif motorisé (100) apte à se mouvoir dans un fluide, tel qu'un drone, et comprenant un ou plusieurs systèmes locomoteurs (101), avec chacun au moins un ensemble d'entraînement relié à au moins un organe de locomotion (102) et un moteur (104) commandé par une tension électrique telle que : • - la fréquence d'un mouvement alternatif de l'ensemble d'entraînement corresponde à la fréquence de résonance de l'organe de locomotion relié à une partie non mobile par au moins un moyen élastique précontraint (111, 112), et • - l'amplitude instantanée du mouvement alternatif de l'ensemble d'entraînement soit ajustée pour commander la position moyenne et l'amplitude maximale du mouvement alternatif de l'organe de locomotion, l'ensemble d'entraînement comprenant au moins un réducteur (106 et 108) de vitesse de rotation du moteur, pour, lorsque le moteur fonctionne à sa puissance mécanique maximale, la vitesse de rotation transmise à l'au moins un organe de locomotion soit réduite pour correspondre à cette fréquence de résonance.
Abstract:
In one embodiment there is a toy skateboard having two configurations. In the first configuration, a pair of non-motorized truck assemblies are attached to the deck, and the upper surface of the deck has a finger engaging region for a user's fingers to engage and move the skateboard. In the second configuration, the rear non-motorized truck assembly is replaced with a motorized rear truck assembly, wherein the movement of the skateboard is controlled by the processor in response to remote signals. In addition, the processor may detect a back EMF voltage generated by the rotation of a motor caused by a manual manipulation of a wheel controlled by the motor. The processor would have sleep and wake states and would transition between the two when the detected back EMF voltage reaches a pre-determined value.
Abstract:
Embodiments of a hand-launched solar-powered aircraft are disclosed. In addition, embodiments of kits are disclosed for the construction of a hand-launched solar-powered aircraft. Further, embodiments of methods of making a hand-launched aircraft are disclosed. In some embodiments, the hand-launched aircraft is solar-powered. Still further, embodiments of an educational kit for a hand-launched, solar-powered aircraft are disclosed. In various embodiments, the educational kit comprises educational material on one or more science and technology learning topics, which educational material is relevant to and supplemented by the assembly and/or operation of the aircraft. The education material can relate to, for example, one or more of flying techniques, aeronautics, renewable energy, electronics, mechanical engineering, and/or climatology.
Abstract:
A mechanized, movable toy with the ability to interact with and explore its environment, while performing actions and creating noises at specific intervals. The toy has at least two receivers and a control unit capable of detecting wireless signals from a source and capable of reacting to move towards the source of the wireless signals. Once the toy enters within an area of the source, the toy performs a new action. The source may be a stationary device, handheld device, movable device, or another mobile toy. The toy may contain switches thereupon to switch the toy on or off. The receivers may be arranged in and around the toy to detect the wireless signals from one side of the toy or another.
Abstract:
The invention relates to a method for monitoring drive engines, particularly for aircraft or the like, particularly in the start-up phase, wherein a detection of abnormal start-up behaviour, particularly elevated torque, is provided, or the drive units are held at a resting rotational speed during standby and are not completely stopped, and/or warning signs are provided during the standby.
Abstract:
An apparatus includes a housing, a rotational motor situated within the housing, an eccentric load adapted to be rotated by the rotational motor, and a plurality of legs each having a leg base and a leg tip at a distal end relative to the leg base. The legs are coupled to the housing at the leg base and include at least one driving leg constructed from a flexible material and configured to cause the apparatus to move in a direction generally defined by an offset between the leg base and the leg tip as the rotational motor rotates the eccentric load.