13results about How to "Accurate positioning" patented technology

The invention relates to the technical field of forestry resource monitoring, and discloses a forestry resource dynamic monitoring system and method based on remote sensing images, and the method comprises the steps: generating same-grid time phase remote sensing reflectivity data; generating a continuous canopy occupancy map; generating an inner hole set; measuring the scale of the intrinsic neck; the continuous canopy inner hole topology spectrum intensity is calculated; calculating an inter-layer decoupling topology index; generating a monitoring judgment result; and outputting the change pattern spots. According to the method, a self-adaptive multi-scale erosion sequence is constructed on the basis of the intrinsic neck scale, the Euler feature is combined to quantify the inner hole topology fragmentation process, the inner hole fragmentation degree and the outer envelope stable state are integrated through the interlayer decoupling topology index, change unit judgment and space pattern spot accurate positioning are achieved, and the method has the advantages of being simple in structure and convenient to operate. And missing detection or misjudgment of the change of the deep structure under the forest in the traditional technology is avoided, so that the monitoring result conforms to the actual mechanism of the dynamic change of forest resources.

The present application relates to the technical field of coal mine equipment, and more particularly to a mine hoist guide wheel rope lining automatic online assembly mechanism, which comprises a portal frame, a guide wheel body, a feeding assembly, a feeding assembly and a press-fitting assembly. The portal frame is arranged on one side of the guide wheel body. The feeding assembly is used for conveying the guide wheel rope groove gasket. The feeding assembly is used for feeding the guide wheel rope groove gasket on the feeding assembly to the guide wheel body. The press-fitting assembly comprises a linear actuator, a high-frequency vibrator, an extended connecting rod, a knocking module and a position detection unit. The linear actuator is installed on the portal frame. The output end of the linear actuator is connected with the high-frequency vibrator. The output end of the high-frequency vibrator is connected with the knocking module. The position detection unit is arranged on the knocking module. In this way, the technical problem of high labor intensity and time-consuming and laborious work of workers in the prior art is solved.

The utility model discloses a positioning device for an inner ring of a sealing element of a non-disc type end face spring plug seal, and relates to the technical field of spring plug seals. The sealing device comprises a bottom plate and a sealing piece, wherein a positioning mechanism is arranged on the bottom plate. Through the arrangement of the positioning mechanism, in the process that the two moving seats continuously move away from each other, the multiple springs can generate different deformation according to the radian of the inner side of the PEEK fixing ring, at the moment, the electric valve is closed to separate the sealing cavity from external air, the multiple springs are prevented from rebounding, and the sealing effect is improved. The positioning rods are arranged on the bottom plate, so that the PEEK fixing ring can be positioned at the center of the top of the bottom plate by the positioning grooves in the positioning rods, the sealing element can be accurately positioned and fixed during assembly, deviation in the subsequent use process is avoided, and after the PEEK fixing ring of the same model is positioned by the mechanism, the sealing element can be accurately positioned and fixed. And a plurality of PEEK fixing rings are sequentially positioned and assembled according to the adjusted piston rod, so that the efficiency of assembling a plurality of sealing elements with the same model is improved.

This invention discloses an installation guidance system and method for prefabricated composite slabs in irregular-shaped formwork systems for public buildings, relating to the field of building technology. It includes a data acquisition module, a calculation and decision-making module, an installation guidance module, and a geometric compensation connection module. The data acquisition module acquires on-site control points, 3D point clouds, and calibration target data, establishes on-site-BIM coordinate correspondence, and outputs original measurement data and quality indicators. The calculation and decision-making module performs rigid body registration and deviation analysis on the point cloud and BIM, solves for the optimal installation posture and tolerance allocation of components, and generates installation command parameters. The installation guidance module projects installation commands to the site using laser, total station, or AR methods, providing real-time prompts for positioning, fine-tuning, and tightening steps and values. The geometric compensation connection module achieves XYZ and angle fine-tuning through adjustable brackets, elliptical slot connections, and edge compressible layers, and reliably locks and cures after grouting while meeting load-bearing requirements. This invention features high accuracy.

This invention relates to the field of integrated structural and functional design of aero-engines, and discloses a compressor rectifier blade angle adjustment structure and method based on piezoelectric materials. The method utilizes the extension, contraction, or bending deformation of a first and second active pawl to drive the rectifier blade, equipped with ratchet wheels, to rotate to the desired angle. Furthermore, each rectifier blade is designed with two ratchet wheels, which work together to allow the blade to freely rotate in both directions. The first and second anti-return pawls effectively prevent reverse rotation and backtracking during rectifier blade angle adjustment. This invention transforms the reciprocating motion of the first and second active pawls into intermittent rotation of the rectifier blade along a certain direction, moving step by step and accumulating the rotation angle. This allows the rectifier blade angle adjustment range to reach 360°, and the adjustment accuracy can be adjusted by modifying the number of ratchet teeth as needed. This adjustment structure is superior to traditional adjustment structures, and the adjustment method has the advantage of high positioning accuracy.

The present application relates to photovoltaic array integration axis positioning control method, including the following steps: the installation position of the first stake and the tail stake of the photovoltaic array is positioned, and the first stake and the tail stake are installed respectively in the corresponding installation position;Install fixed support to the first stake and the tail stake, and install the tensile measuring rope on the top of the two fixed supports, adjust the height of the fixed support, so that the tensile measuring rope is in the preset slope;According to the preset stake spacing, mark on the tensile measuring rope, and install the plumb bob at the mark;The vertical projection of the tip of the plumb bob on the ground is installed in the middle stake;Install the fixed support on the top of the middle stake, and make the top of the fixed support connected to the tensile measuring rope;Install multiple inclination sensors on the tensile measuring rope between the first stake, the middle stake and the tail stake, and adjust the height of the fixed support on the middle stake, aiming at the same inclination data feedback by the multiple inclination sensors.

This invention discloses a visual positioning method and related apparatus for an equipotential robot, relating to the field of power system automation technology. The method includes: constructing an improved deep learning network model, denoted as TR-YOLOv5; acquiring images using a camera on the equipotential robot; identifying Mark points in the images based on TR-YOLOv5; using an iterative approximation coarse positioning method to iteratively adjust the camera's shooting position along the axes until the Mark points exhibit preset geometric features in the image; identifying hardware clamps based on TR-YOLOv5; and executing a vision-assisted dual-arm positioning process to complete assembly. This invention solves the problems of low visual positioning accuracy and poor robustness of existing equipotential robots for small targets in complex dynamic environments.

The utility model relates to a tunnel vertical frame trolley which comprises a trolley body and an arch frame carrying trolley installed on the top of the trolley body. The two sides of the rear end of the trolley body are each provided with an arch frame lifting unit. Any arch frame lifting unit comprises a lifting longitudinal beam, a translation longitudinal beam, a lifting longitudinal beam, hoisting equipment, at least one first jacking oil cylinder and at least one vertical guide rail; two ends of any guide rail are respectively positioned at the top and the bottom of the trolley main body; a lifting trolley is installed on any guide rail, one end of a lifting longitudinal beam is fixed to the lifting trolley, and the other end of the lifting longitudinal beam backwards extends out of the trolley body. A translation trolley is mounted on the lifting longitudinal beam, and the translation longitudinal beam is fixed on the translation trolley; the lifting longitudinal beam is located on one side of the upper end of the guide rail and driven by the first jacking oil cylinder to ascend and descend. The hoisting equipment is used for driving the lifting longitudinal beam to lift; in the process of transferring the top lagging jack, the top lagging jack moves stably and does not shake, and the safety risk is greatly reduced.

This invention provides an automatic continuous injection molding die structure for sensor packaging shells, comprising a metal strip and an injection mold. The metal strip includes a chain belt with a plurality of metal inserts spaced apart along the length of the chain belt. The injection mold includes a rear mold with a plurality of cavities for inserting the metal inserts. The rear mold also includes an ejection mechanism for disengaging the molded product from the cavities. Along the conveying direction of the metal strip, the ejection mechanism sequentially includes a first conveying device, a push plate, and a second conveying device. Both the first and second conveying devices have a first guide groove for the metal strip to pass through. The push plate has a second guide groove for the metal strip to pass through, perpendicular to the conveying direction of the metal strip. The cavities are distributed on both sides of the push plate. This invention also provides a method for using the automatic continuous injection molding die structure for sensor packaging shells.

The utility model relates to a progressive multifocal lens fitting experience frame, and belongs to the technical field of lens fitting. Comprising an interpupillary distance adjusting mechanism used for adjusting the interpupillary distance corresponding to fitting mirror frames on the two sides of the whole fitting experience frame, the two fitting mirror frames are symmetrically and fixedly welded to the two sides of the interpupillary distance adjusting mechanism and used for installing lenses with different luminosities, and a clamping mechanism is further connected to the middle position of the interpupillary distance adjusting mechanism. The clamping device is used for clamping the whole fitting experience frame on glasses of a fitting person; the interpupillary distance adjusting mechanism comprises an adjusting mechanism middle layer clamped in the middle, a metal cover plate and an interpupillary distance marking bottom plate are arranged on the upper surface and the lower surface of the adjusting mechanism middle layer respectively, and the middle layer, the interpupillary distance marking bottom plate and the metal cover plate are fixedly connected into a whole through locking screws.

The application discloses a bolt processing size adjustable cold header, which comprises a support and a cold header body, and the cold header body comprises a base, an assembly cavity, a first through hole, an electric hydraulic lifting rod, a positioning shaft, a first external gear ring, a first bearing, a first driving gear, a first servo motor, a screw rod placing blind hole, a second through hole, a screw rod supporting plate, a spring, a second external gear ring, a second bearing, a second driving gear, a second servo motor and a head forming through hole. The application has simple structure and reasonable design, can be suitable for bolt processing of various models, reduces the replacement time of molds and improves the adjustment efficiency of the cold header.

The invention belongs to the technical field of LED packaging equipment, and particularly relates to an LED side light support discharging and stacking device with a self-adaptive buffering function, the LED side light support discharging and stacking device comprises a base, a supporting seat is arranged at the top of the base, and a sliding rail is arranged on one side of the supporting seat. Specifically, the linkage assembly converts reciprocating motion of the first suction cup machine into one-way intermittent rotation of an intermittent fluted disc, and a bearing plate and the material receiving box are driven to descend step by step through a lead screw, a sliding block and a slope transmission pair. The descending distance each time is accurately equal to the sum of the thickness of the side light support plate and the combined thickness of the buffer plate and the convex part, due to the incomplete gear design of the fluted disc and the one-way conversion characteristic of the reciprocating hole, it is guaranteed that idling is conducted only in the discharging stroke driving descending process and the return stroke process, invalid movement is effectively filtered, and therefore each support is released at the fixed height; therefore, zero-impact stacking is realized, and the material receiving surface is kept flush with the receiving surface in the material receiving box.

The utility model relates to the technical field of tools, in particular to a glass slit manufacturing tool device used in a vertical X-ray diffractometer. Aiming at the problems that the existing glass slit is manufactured by adopting manual installation or a simple fixing tool, a glass sheet is difficult to position and easy to shift, the flatness of the surfaces of the base and the inner and outer rings is difficult to guarantee, the sample stability is poor and the accuracy and repeatability of an X-ray diffraction experiment are influenced due to a single fixing mode, the following technical scheme is provided: the device comprises a limiting sleeve; the mounting block is arranged at the bottom of the limiting sleeve, and a circular glass sheet is mounted in the mounting block; the fixing block is positioned below the mounting block, and a square glass sheet is fixedly connected in the fixing block; and a positioning mechanism. According to the utility model, the manufacturing precision of the glass slit is improved, the flatness of the surface of the glass sheet is ensured, the sample stability is improved, and the accuracy of X-ray diffraction experiment data and the reliability and repeatability of results are ensured.