37results about How to "Improve exercise quality" patented technology

The invention relates to a method for designing double-curvature automobile door glass on the basis of drum-shaped line theories. The method includes steps of (1), determining geometric input models according to characteristics of double-curvature glass and modeling A surfaces; (2), determining parameterized drum shaft positions according to the geometric input models; (3), determining contour lines of front and rear boundaries of glass surfaces according to characteristics of drum-shaped lines; (4), generating double-curvature glass surfaces by means of sweeping according to parameterized waist lines and the contour lines. The method has the advantages that the coincidence degrees of the double-curvature glass surfaces and the modeling A surfaces can be upgraded, interference between the double-curvature glass and automobile door accessories in lifting procedures can be reduced, and the movement stability and reliability can be improved; the traditional ring surface design models are improved, the drum shaft positions are optimized, the drum-shaped double-curvature glass is designed, accordingly, standard guidance effects can be realized, the method is favorable for improving the fitting precision and the movement quality of the double-curvature glass and reducing the failure rate and has high engineering practical value, and major requirements on improving the automobile body development capacity of the automobile industry can be met.

A motion control system for an independent cart system provides for a minimum spacing between movers that is less than the width of a coil used to control motion of the movers. Blocks are statically or dynamically defined along the length of each track segment, where the width of a block is less than the width of a coil along the same track segment. Dividing the width of each coil into smaller block widths provides for an improved resolution of control for each mover. The blocks may also establish collision prevention between movers without requiring knowledge of the position of adjacent movers. Each block is assigned to a single mover at a time, but multiple blocks may be assigned to a single mover. A mover is permitted to only move within those blocks assigned to it and cannot have blocks assigned to it that are already assigned to another mover.

The invention relates to the technical field of underwater equipment, in particular to a deep-sea tow body and a method for adjusting the attitude of the deep-sea tow body. It includes a tow body frame, an attitude adjustment system, a depth control system, a tow body control system and two side wings, wherein the attitude adjustment system, the depth control system and the tow body control system are respectively fixed on the tow body frame through a subsystem support frame, The two wings are symmetrically arranged in the tow body frame, the attitude adjustment system and the depth control system are located below the wings, the bottom surfaces of the two wings are respectively connected with the attitude adjustment system, and the two attitude adjustment systems are arranged symmetrically. The motion stability of the deep-sea towing body during the towing process can be ensured by adjusting the pitch and roll attitudes of the flanks.

The invention discloses a novel sliding mode prediction fault tolerant control method for actuator failure of a variable time delay control system. A sliding mode prediction fault tolerant control method based on whale optimization algorithm is designed for the problem of fault tolerant control of four-rotor systems with discrete time delay uncertainties. The whole-process sliding mode surface isused as a prediction model to ensure the global robustness, and a power function reference trajectory with failure compensation is designed to suppress the uncertainty and failure while reducing the influence of buffeting. In the process of rolling optimization, considering the requirement of high-precision and fast response of the optimization process, the whale optimization algorithm is adoptedto have strong optimization performance, less parameter setting, fast convergence and high precision. The novel fault tolerant control method provided by the invention is applied to robust fault tolerant control of a class of uncertain discrete systems with time-varying delays.

The invention discloses a processing method and device for motion trajectory video. Wherein, the method includes: during the movement of the target athlete, acquiring characteristic information of other athletes, wherein the characteristic information includes: attribute information of other athletes, movement information of other athletes, and other athletes relative to the target athlete. The relative position of the target athlete; generate the predetermined audio corresponding to the movement state of the target athlete and the feature information; add the predetermined audio to the target athlete's motion track video to obtain the target motion track video. The invention solves the technical problem in the related art that the motion track video content generated according to the motion state of the athlete is relatively single.