13results about How to "Achieve interference" patented technology

The application discloses a kind of for tantalum niobium tailings in tin metal recovery's synergistic treatment system, specifically related to metallurgical solid waste resource utilization technical field, acoustic-electricity perception pre-agglomeration module exports pre-agglomeration probability index according to pre-agglomeration threshold value;Heat resistance chromatography module exports the temperature field and fluidized void fraction distribution of suspected agglomeration area;Inhibiting ingredient self-adapting module calculates inhibitor addition rate according to distribution;Wind material decoupling adjustment module exports decoupled wind speed and feed rate set value according to addition rate and bed pressure drop;Chain negative feedback blocking module detects pressure drop deviation to generate feedback correction, superimposed to wind speed set value and reversely adjust feed rate set value, while used to update pre-agglomeration threshold value;The application realizes the online identification of agglomeration precursor, accurate danger area precision inhibiting and the closed-loop cooperation of wind material decoupling, inhibits the nonlinear deterioration of coking loss flow, makes tin recovery rate keep stable when tailings fluctuation, and reduces inhibitor consumption and manual intervention.

The invention discloses a cavitation shot peening surface strengthening method and system based on cooperation of high hydrostatic pressure and spherical focused ultrasound. The method comprises the following steps: establishing and maintaining a hydrostatic pressure environment higher than 0.1 MPa in a high-pressure processing cavity filled with a degassing liquid medium; the to-be-machined surface of the workpiece is positioned in a sound field focal region of the spherical focused ultrasound transducer; and in the high hydrostatic pressure environment, a transducer is driven to work so as to generate a cavitation bubble group in a space confinement range in a focal region of the transducer, and meanwhile, the workpiece is controlled to move according to a preset path, so that cavitation collapse impact acts on a target region on the surface of the workpiece. The device comprises a high-pressure processing cavity, a spherical focused ultrasonic transducer, a multi-degree-of-freedom movement mechanism and a control system. Through cooperation of high hydrostatic pressure constraint and the spherical focusing sound field, precise localization and energy strengthening of the cavitation effect are achieved, a plastic deformation layer can be efficiently and controllably introduced to the surface of a metal material, the surface hardness can be remarkably improved, a residual compressive stress layer is formed, surface layer grains are refined, and the method is suitable for precise surface strengthening of complex components.

The present application relates to the technical field of electric machines, in particular to a propelling electric machine rotor dynamic balance correction method and system, the method comprising: obtaining time-synchronized rotation speed signals and vibration signals of the electric machine; determining rotation speed change rates at each time, and determining window lengths of analysis windows at each time based on the rotation speed change rates at each time; determining synchronous component proportions and comprehensive stability indexes of the analysis windows at each time, and determining a working condition correction factor of the electric machine based on a running working condition of the electric machine, the rotation speed change rates at each time of the electric machine, and vibration amplitudes of the vibration signals; determining comprehensive confidence levels of the analysis windows at each time according to the synchronous component proportions, the comprehensive stability indexes, and the working condition correction factor, and selecting target data from the vibration signals and the rotation speed signals according to the comprehensive confidence levels, and performing rotor dynamic balance correction using the target data. In this way, the present application improves the accuracy and consistency of propelling electric machine rotor dynamic balance correction results.

The invention discloses a positioning mapping method and system for a hexapod robot, a storage medium and equipment. The method comprises the steps that two-dimensional point cloud data, three-dimensional point cloud data and real-time attitude data are collected; when it is judged that any attitude angle exceeds a preset stable threshold value, a gait control instruction used for controlling the hexapod robot is generated; an improved Hector-SLAM algorithm is adopted to process the two-dimensional point cloud data to generate a two-dimensional grid map, and an ORB-SLAM3 algorithm fused with YOLOv8 target detection and introduced with a dynamic point grading rejection mechanism is operated to process the three-dimensional point cloud data to generate a three-dimensional point cloud map; performing weighted fusion on the map to obtain a fused environment map; path planning is conducted according to the fusion environment map and the current positioning result, foot end track points are generated through forward and inverse kinematics solution, the hexapod robot is controlled to move, and continuous positioning and mapping are achieved. Through motion control and multi-algorithm fusion, stable and accurate autonomous positioning and mapping of the hexapod robot in a dynamic environment are realized.

The invention aims to provide a rolling bearing weak fault feature enhancement extraction method, and belongs to the field of rolling bearing fault diagnosis. Firstly, a 1 / 3 binary tree filter bank is adopted to divide an original signal into a plurality of frequency bands, then spectrum amplitude modulation (SAM) is carried out on each filtered signal, a discrete normalized envelope spectrum peak factor (DNESP) index is established, the most MO range is selected in a self-adaptive mode, and then a normalized square envelope spectrum is reconstructed. And finally, constructing a normalized envelope spectrum peak factor (NESP) as an evaluation index, quantizing and reconstructing the richness of fault information in the normalized square envelope spectrum, and adaptively selecting a demodulation band with significant fault information according to the richness, thereby realizing enhanced extraction of fault features. The method provided by the invention can effectively extract weak fault features of the rolling bearing, and has good robustness for various interferences and noises.

This invention discloses a steganography detection and attack method based on data format deviation, specifically including: acquiring a BinaryPlist file to be detected and reading the file as a binary byte stream; parsing the file header of the BinaryPlist file to determine whether the file conforms to a preset BinaryPlist file identifier format; parsing the offset table information in the BinaryPlist file to obtain the file offset address corresponding to each object in the object table; based on the offset address, parsing each object in the object table one by one to obtain the object type, object length, and object content; determining whether the offset relationship, object boundary, and object content of the object deviate from the format specification of the BinaryPlist file; if a format deviation is detected, determining the position of the corresponding steganography data block; and performing an attack operation on the steganography data block, including steganography data replacement or steganography data erasure, to destroy or block the steganography information.

The invention discloses an SAR (Synthetic Aperture Radar) smart interference method and system for pulse segmentation hybrid modulation, a storage medium and electronic equipment, and the method comprises the following steps: carrying out the complete interception of an SAR transmission signal, and achieving the conversion from a continuous analog signal to a discrete digital signal; dividing the complete pulse into a plurality of segments in equal length according to a preset interference requirement, and rearranging the segments according to a complete inverted sequence; respectively generating a digital interference signal in a deception mode and a digital interference signal in a suppression mode; reconstructing the digital interference signals in different interference modes into continuous analog interference signals; and moving the baseband analog interference signal to a preset carrier frequency band by using an up-conversion modulation mode. The deception jamming effect of irregular distribution of multiple false targets can be achieved under the same jamming system, or the non-blind area suppression jamming effect of multi-area full coverage can be achieved, free switching of the suppression jamming mode and the deception jamming mode is supported, and the jamming output characteristic can be finely controlled through modulation parameters.

The invention provides an industrial control equipment-oriented flow trip line generation method and system based on honey points, and relates to the technical field of network security. The method provided by the invention comprises the following steps: generating an instruction based on a configuration file and a tripwire strategy; obtaining an original load sequence, identifying sensitive fields in the original load sequence based on a flow trip line load generation model, and replacing the sensitive fields with mask marks to form a mask load sequence; predicting a mask mark position in the mask load sequence to generate bait data; filling the bait data to a mask mark position, and combining the bait data with a non-sensitive field in the mask load sequence to generate camouflage load data; embedding the camouflage load data into a standard protocol frame based on the instruction, constructing a flow trip line data packet, and embedding the address information of the honey point into the flow trip line data packet; and when the generation time arrives, actively sending the traffic trip line data packet to the outside according to the sending interval. According to the invention, active trapping perception and dynamic cheating of potential attacks are realized by actively sending analog data traffic.

This invention relates to an injection mold for producing six-hole injection molded products, comprising an upper ejector plate, an upper mold, and a lower mold. The upper and lower molds, stacked vertically, are mounted on the lower end face of the upper ejector plate. A mold core structure is installed between the upper and lower molds, and a mold cavity structure is provided between the mold core structures. Side hole core-pulling devices are symmetrically arranged side-by-side on the front and rear sides of the mold cavity structure. A central hole core-pulling device, inserted into the mold cavity structure, is installed between two side hole core-pulling devices. A mold foot structure is mounted on the lower end face of the lower mold. A rack-and-pinion drive structure for controlling the side hole core-pulling action is installed on the front side of the upper mold and the rear side of the lower mold. The rack-and-pinion drive structure on the upper mold is arranged in a forward direction, while the rack-and-pinion drive structure on the lower mold is arranged in a reverse direction. One end of each side hole core-pulling device is inserted into the mold cavity structure. This invention features high product precision, no pull-out damage, convenient product removal, and space saving within the mold.

The invention provides a braid quality detection method and system based on industrial camera detection, and relates to the technical field of quality detection.The method comprises the steps that 1, after continuously-collected original images of a conveyed braid are preprocessed, a target area where the braid is located is extracted, a detection coordinate system is established, and a braid detection area image after positioning is obtained; and performing surface defect detection and geometric dimension detection on the positioned braid detection area image to obtain an independent defect area set, two edge reference lines of the braid, a real-time width value and a width deviation value. According to the method, the detection reference can be unified, braid conveying deformation and defect distribution can be adaptively adapted, the width detection dynamic precision is improved, defect and size data association judgment is achieved, single feature misjudgment is avoided, and braid quality fine grading is completed.

The invention provides a chiral carbon nanotube-iron cobalt prussian blue analogue-gold composite material as well as a preparation method and application thereof, and belongs to the technical field of carbon nanomaterials. According to the invention, a right-handed chiral carbon nanotube is used as a conductive substrate, Au nanoparticles are loaded on the surface of an iron-cobalt Prussian blue analogue through a reduction method to form a ternary composite material, and then the ternary composite material is loaded on the surface of the right-handed chiral carbon nanotube through a stirring method to subsequently construct a signal amplification unit; and by taking the carboxylated right-handed chiral carbon nanotube as an electrode carrier, fixing an amino-modified DNA probe through an amido bond, and constructing an unmarked electrochemical detection platform. Compared with a traditional method, the method has the advantages that the reaction condition is mild, the cost is low, the yield is high, and the prepared composite material has the advantages of high specific surface area, high conductivity, high catalytic activity, high stability and the like, can be directly used for blood sample detection and is suitable for early screening, bedside diagnosis and prognosis evaluation of various malignant tumors.

The utility model relates to the technical field of vibration motor, especially axial flux vibration motor. This axial flux vibration motor includes the shell, stator assembly and rotor assembly, stator assembly is fixed in the shell, rotor assembly rotates and is installed in the shell, and rotor assembly includes rotor frame and a plurality of permanent magnet, and rotor frame has the first end face close to stator assembly and the second end face away from stator assembly, and a plurality of permanent magnet is fixed in the first end face and is arranged in the circumference around the axis, and rotor frame has eccentric weight structure, and eccentric weight structure is fixed in the second end face, and eccentric weight structure is used to make the mass center of rotor frame produce the offset relative to the rotation center of rotor frame, can obtain the exciting force using the centrifugal force produced by the high -speed rotation of rotor frame, and further realizes vibration output, satisfies actual exciting force demand, and moreover still can greatly reduce axial dimension, satisfies actual installation demand.