4results about How to "Comprehensive parameters" patented technology

The utility model discloses a robot test track, which relates to the field of tracks, and aims to solve the problems of simple structure, low test efficiency, incomplete parameter coverage and insufficient dynamic adaptability of the conventional robot test track, and comprises a low-rail support frame, a connecting beam is fixedly connected to one side of the low-rail support frame, and a high-rail support frame is fixedly connected to the other end of the connecting beam. The low-rail supporting frame and the high-rail supporting frame are fixedly connected with semi-ring rails, one sides of the two semi-ring rails are jointly connected with a low-gradient rail, the other ends of the two semi-ring rails are jointly connected with a high-gradient rail, and the cross sections of the semi-ring rails, the low-gradient rail and the high-gradient rail are all of an I-shaped structure. The two semi-ring tracks, the low-gradient track and the high-gradient track form a closed-loop structure. The comprehensive testing device has the advantages that the comprehensive testing on the turning radius and different climbing gradients is realized; meanwhile, by adjusting the lengths of the high-gradient track and the low-gradient track, the gradient of the tracks can be adjusted, so that the trafficability of the robot on different gradients can be conveniently tested.

This invention relates to the field of underwater positioning technology, specifically to an AUV cooperative positioning method based on generalized maximum correlation entropy and capacitive Kalman filtering (CKF) that can effectively improve positioning accuracy. This invention employs GMCC and introduces a generalized Gaussian density kernel function to measure the error of the nonlinear filtering algorithm using generalized correlation entropy. The generalized Gaussian kernel function has the advantages of having many parameters, flexible variation, and adaptability. It can achieve the maximum correlation entropy when the error is minimized. Because the generalized Gaussian kernel contains even-order higher moments of the errors of two variables, it can better handle heavy-tailed noise and large outliers. Experimental verification shows that the technical solution of this invention has better robustness and reliability, and can better handle problems such as outliers and heavy-tailed noise interference. Compared with the traditional CKF, this invention can improve positioning accuracy.

The embodiment of the application provides a kind of permanent magnet synchronous motor rotor temperature real-time measurement method and related equipment, to improve the accuracy of permanent magnet synchronous motor rotor temperature real-time measurement, method includes: obtaining E0, E0 is initial temperature T0, permanent magnet synchronous motor under constant speed and no-load operation under real counter electromotive force line voltage value;Obtain E2, E2 is initial temperature T0, permanent magnet synchronous motor under constant speed and constant load operation under frequency converter reading counter electromotive force line voltage value;Frequency converter is read using E3, E3 is current temperature T1, permanent magnet synchronous motor under constant speed and constant load operation under frequency converter reading counter electromotive force line voltage value;According to preset formula, using E0, E2 and E3 calculate the current temperature T1 of the rotor of permanent magnet synchronous motor.The embodiment of the application can realize the real-time measurement of permanent magnet synchronous motor rotor temperature, and measurement result accuracy is high.

This invention provides a multi-turn silver nanoring and its preparation method, belonging to the field of metal nanomaterial preparation technology. The invention first mixes a polyvinylpyrrolidone (PVP) glycol solution with pyridine to obtain a mixed solution; then, the mixed solution, a sodium halide glycol solution, silver nitrate, and sodium nitrate are mixed, followed by a solvothermal reaction and precipitation separation to obtain multi-turn silver nanorings. The method for preparing multi-turn silver nanorings is simple, easy to implement, has good reproducibility, and high yield. During the preparation process, the addition of the organic solvent pyridine enables the silver nanowires to bend and grow significantly to form multi-turn silver nanorings.