5 results about "Multiple degrees of freedom" patented technology

The invention relates to a flexible positioning fixture controlled by a servo. The whole fixture, from the bottom to the top, comprises a first horizontal direction moving servo control mechanism, a first rotation direction servo control mechanism, a vertical direction movement servo control mechanism, a second horizontal direction moving servo control mechanism, a second rotation direction servo control mechanism, a third rotation direction servo control mechanism and a positioning pin mechanism. The positioning pin mechanism is an actuating mechanism of the entire mechanism and plays a positioning role on the assembly of workpieces. The position precision of the positioning pin mechanism is achieved by the servo control mechanisms in the moving directions and rotating directions. The positioning fixture realizes multiple-degree-of-freedom adjustment, meets the characteristic requirement of the flexible fixture produced by a variety of similar vehicle models, has the capability of quickly, accurately and automatically adjusting the three-dimensional position and posture of the positioning pin according to the variation of the positioning positions of different products, and realizes the space positioning of different positioning modes.

The invention provides an indoor mobile robot for delivering meals and belongs to the technical field of robots. The indoor mobile robot for delivering the meals comprises a chassis, Mecanum wheels, a storage battery, a charging pile, a trunk support, shoulder joint servo drive units, large arm joint servo drive units, shoulder and large arm connecting pieces, large arm and small arm connecting pieces, small arm joint servo drive units, small arm and wrist joint connecting pieces, wrist joint servo drive units, wrist joint and palm connecting pieces, tail end joint servo drive units, tail end connecting pieces, chassis servo drive units, a binocular vision sensor, a controller and a WIFI module. The indoor mobile robot is provided with double arm structures, double arms have multiple freedom degrees and the power-off self-locking function, the meals can be automatically delivered in a restaurant rapidly and efficiently, and the indoor mobile robot is simple in structure, convenient to operate and capable of saving manpower.

The invention discloses a method for controlling a non-radial displacement transducer of a multi-phase and single-winding bearingless motor. The control for torque and suspension of the multi-phase and single-winding bearingless motor is finished in two planes which are orthorhombic mutually; and a multi-phase inverter is utilized to simultaneously introduce two groups of currents with different phase differences to the motor, thus respectively realizing the torque drive and the rotor suspension of the motor. With respect to the multi-phase and single-winding bearingless motor with the phase number of more than or equal to 7, displacement signals are extracted from another plane different from a torque plane and a suspension plane according to the the characteristics of MDOF (multiple degree of freedom) of the multi-phase motor by utilizing the relationship between mutual inductance and eccentricity among different planes in an eccentric state, so as to research the non-displacement transducer control technology of the motors. In the method, the multi-control DOF of the multi-phase and single-winding bearingless motor is utilized to extract radial displacement information of a rotor under fundamental frequency, thus reducing the system cost, shortening the radial length of a system and improving the system reliability.

A robotic mount is configured to move an entertainment element such as a video display, a video projector, a video projector screen or a camera. The robotic mount is moveable in multiple degrees of freedom, whereby the associated entertainment element is moveable in three-dimensional space. In one embodiment, a system of entertainment elements are made to move and operate in synchronicity with each other, such as to move a single camera via multiple robotic mounts to one or more positions or along one or more paths.