4results about How to "Reduce position" patented technology

This application discloses a high-efficiency five-axis machining center, relating to the field of CNC machine tools. It includes a base and a worktable, with two support seats mounted on the base. A transverse slide is slidably connected to each of the two support seats, and a positioning seat is provided on each support seat. An inclined surface is formed on the side of the positioning seat near the transverse slide, and a transverse stator is mounted on the inclined surface. Transverse movers are mounted on both sides of the transverse slide. A longitudinal slide is slidably connected to the transverse slide, with a row of longitudinal stators mounted on the transverse slide and longitudinal movers mounted on the longitudinal slide. A vertical drive seat is slidably connected to the longitudinal slide, and a vertical drive cavity is formed on the vertical drive cavity. A vertical drive component is installed within the vertical drive cavity, and one end of the vertical drive component is rotatably connected to a first drive screw. This application aims to disperse the upward shearing force generated during cutting, improve the stability of the transverse slide movement, and enhance product machining accuracy and processing effect.

The invention relates to an unmanned ship prediction tracking control method and system based on a GRU disturbance observer, and belongs to the field of ocean intelligent equipment control. The method comprises the following steps: constructing an unmanned ship kinematics model and an unmanned ship dynamics model; transmitting sensor data to the unmanned ship kinematics model and the unmanned ship dynamics model, and calculating an actual disturbance value; and obtaining an unmanned ship linearization model according to the constructed GRU disturbance observer model, and obtaining a target control quantity for the unmanned ship linearization model through a model prediction control strategy. The method solves the problems that the accuracy of tracking the expected path by the unmanned ship is reduced and the course error is increased due to low prediction precision of model prediction control.

The application discloses a sterile water sample collection system and method for water pollution detection, relates to the technical field of water pollution detection, and is used for solving the problems that the prior art can only sample one bottle at a time, the continuous sampling efficiency is low, and on-site operation is inconvenient. The sterile water sample collection system for water pollution detection comprises a telescopic sleeve, a basket arranged at one end of the telescopic sleeve away from a shore, a traction rope connected between the telescopic sleeve and the basket, and a negative pressure bottle stored in the basket, a displacement mechanism capable of moving along the length direction of the telescopic sleeve, and the like. The displacement mechanism capable of moving along the length direction of the telescopic sleeve is arranged on the telescopic sleeve, and a bottle changing mechanism for storing a plurality of negative pressure bottles is arranged on the displacement mechanism, so that the sequential replenishment and sequential replacement of the plurality of negative pressure bottles can be continuously completed at the same sampling position after one-time arrangement, and thus the cumbersome operation of repeatedly recovering, refilling and lowering again for each sample collected in the existing manual telescopic rod sampling mode is avoided.

The application discloses an image splicing and brightness uniform device and method for silk detection, and belongs to the technical field of raw silk detection and machine vision image processing. The device comprises an improved blackboard device, a calibration target device, a linear slide linear module device, an electrical control device, an image acquisition module, a computer module and a fixed aluminum profile device. The method determines the spatial order and homography matrix of multi-camera images by using the calibration target, synchronously acquires raw silk images at multiple absolute position image acquisition stations, sequentially completes multi-camera image fusion in the stations and overall splicing between the stations, and then corrects the brightness channel according to the background illumination estimation of the overall raw silk blackboard image to obtain a brightness uniform image. The application can take into account large-scale coverage, silk stripe texture resolution and image brightness consistency, is suitable for raw silk machine vision detection and detection result tracing, and provides a solution for raw silk blackboard image acquisition and large-scale high-quality image tracing.