11results about How to "Clear separation" patented technology

The invention discloses high-precision laser cutting equipment suitable for a complex circuit board, and relates to the technical field of circuit board cutting, the high-precision laser cutting equipment comprises a ceramic table top, a base, a cooling assembly and a waste collecting assembly, the ceramic table top is fixedly mounted at the top end of the outer wall of the base; a cooling assembly and a waste collecting assembly are fixedly installed on the side face of the base through a conveying mechanism. The cooling assembly comprises a nozzle, a liquid box and a radiator, the nozzle is fixedly installed on the side face of the top end of the outer wall of the base through a supporting piece, the liquid box is fixedly installed on the side face of the outer wall of the base, the radiator is fixedly installed on the side face of the inner wall of the base, an impeller is fixedly installed at the bottom of the inner wall of the radiator, and a ventilation opening is formed below the impeller. And a dustproof net is fixedly mounted at the ventilation opening through a bolt. By installing the cooling assembly, the cutting temperature is reduced, the problem of material deformation caused by the heat effect is solved, and it is helpful for guaranteeing the flatness and smoothness of the cutting face and the overall integrity of the circuit board.

The invention discloses a vehicle-mounted sound area separation method and device, equipment and a medium. And determining a multi-channel noise reduction mask through a pre-trained noise reduction network. The multi-channel noise reduction mask can accurately indicate an effective signal segment and a noise signal segment in the echo-removed vehicle-mounted array signal. Based on the multi-channel noise reduction mask, a pure audio signal, namely a multi-channel noise reduction array signal, can be further extracted, so that the interference of noise on a subsequent sound area separation task is reduced, and a sound area separation model can identify and process the audio signal more accurately. Through the noise reduction network, the sound area separation task and the noise reduction task of the sound area separation model can be decoupled, and the situation that the sound area separation model directly processes an audio signal with too high noise, so that the model is over-fitted to noise features, and the accuracy of sound area separation is reduced is avoided.

The invention relates to the field of infrared flaw detection, in particular to a superfine steel wire rope flaw detection device for a robot, which comprises a balance mechanism used for enabling the device to move stably; the limiting mechanism is used for carrying out limiting and anti-shaking treatment on the steel wire rope; the flaw detection mechanism is used for detecting surface damage of the steel wire rope; the lifting mechanism is used for adjusting the height of the whole device; the balancing mechanism is fixedly mounted on the flaw detection mechanism, the limiting mechanism is fixedly mounted at the outer end of the flaw detection mechanism, and the bottom of the flaw detection mechanism is fixedly connected with the lifting mechanism. And one infrared detector is arranged in each separated space on the surface of the steel wire rope, so that the spatial resolution of detection is improved, small temperature difference areas on the steel wire rope can be distinguished more clearly, and finer defects can be found.

The invention provides a non-contact life signal processing method in a strong clutter environment, and belongs to the field of data processing.The method comprises the steps that extreme points in a signal data sequence of a user and first and last signal data are recorded as to-be-corrected data; obtaining an amplitude adjustment parameter and a slope adjustment parameter of each piece of to-be-corrected data according to a numerical value difference and an acquisition time difference between each piece of to-be-corrected data and the to-be-corrected data on the left side and the right side of the to-be-corrected data; and combining the numerical value of the to-be-corrected data to obtain a corrected value of the to-be-corrected data, thereby obtaining upper and lower envelope lines. The invention aims to solve the problem that the signal data of a user is processed by an EMD (empirical mode decomposition) algorithm due to the fact that an upper envelope line and a lower envelope line which are obtained through extreme points in a signal data sequence are greatly influenced by noise because the noise in an environment where the user is located has a great influence on the signal data of the user. And the accuracy of the obtained heart rate signal and respiration signal is low.

This invention provides a collector for recovering platinum group metals (PGMs) from spent catalysts, its preparation method, and its application, belonging to the technical field of precious metal recovery. The collector comprises a copper matrix, a flux, a framework support, and a lattice activator: the copper matrix, flux, and lattice activator are loaded on the surface of the framework support; the copper matrix is ​​elemental copper or a copper-based compound; the flux is boric acid or a borate; the framework support is a porous inorganic material; and the lattice activator is tin, a tin alloy, or a metal sulfide. The collector serves as a collector for the pyrometallurgical recovery of PGMs from spent catalysts. This invention constructs a multi-component synergistic collector composed of a copper matrix, flux, framework support, and lattice activator, which significantly improves the recovery rate of PGMs, especially rhodium, from spent automotive exhaust purification catalysts in pyrometallurgical treatment, and reduces the smelting temperature required for pyrometallurgical treatment, thus significantly reducing energy consumption.

The invention relates to the technical field of water treatment, in particular to an integrated denitrification device for concentrated salt wastewater, which is mainly used for treating inorganic nitrogen and ammonia nitrogen in wastewater. The device is divided into an upper layer part and a lower layer part, the upper layer part comprises a coagulation grid, a flocculation grid, a first sedimentation grid and a second sedimentation grid, and the lower layer part is an SBR reaction tank. By adding the coagulant and the flocculant, suspended matters and colloidal substances can be effectively removed from the upper layer part, and good conditions are provided for subsequent denitrification. And the SBR reaction tank at the lower layer has efficient denitrification performance. The device is provided with an automatic control system, operation parameters can be adjusted according to actual requirements, and stable effluent quality is guaranteed. The device is compact in structure, simple and convenient to operate, small in occupied area, low in energy consumption and capable of reducing construction cost and operation cost. And remote management and monitoring can be realized through the remote monitoring system. When the tail water reaches a certain amount, the alarm is triggered automatically, the tail water is prevented from overflowing, and the treatment efficiency is improved.

The utility model relates to the field of sound box equipment, and especially relates to a portable sound box comprising a box body which is internally provided with a first loudspeaking module and a second loudspeaking module; a digital signal processing chip is arranged between the first output channel of the first loudspeaker module and the second output channel of the second loudspeaker module. The digital signal processing chip is used for processing the digital signal of the second output channel, transmitting the processed digital signal to the first output channel and transmitting the processed digital signal to the first loudspeaking module for outputting or processing the digital signal of the first output channel, transmitting the processed digital signal to the second output channel and transmitting the processed digital signal to the second loudspeaking module for outputting; wherein the digital signal processing chip comprises a signal delay module, a filtering module, a phase inversion module and a signal gain module which are connected in series.

The application discloses a quality detection method of Yinxie No.1 oral granules, and relates to the field of traditional Chinese medicine analysis. The method adopts a thin layer chromatography method to identify Sophora flavescens, Glycyrrhiza uralensis, Arctium lappa and Saposhnikovia divaricata, and simultaneously adopts a high performance liquid chromatography method to detect the content of paeoniflorin, so that the quality of the Yinxie No.1 oral granules is comprehensively evaluated and controlled, a comprehensive and reliable basis is provided for the authenticity identification and internal quality detection of the granules, and the stability of product quality and the safety and effectiveness of clinical medication are ensured.

The tripping and closing loop wiring terminal at least comprises a base and a plugging terminal, wherein the base is formed by arranging wiring units in rows. The wiring unit comprises a first shell and a first conductor, and the first conductor is provided with an input port, a short circuit interface, a test interface and a conductive column. The plugging terminal comprises a second shell and a plugging unit, a mounting cavity is formed in the second shell, first positioning grooves are formed in the mounting cavity, and the first positioning grooves are arranged in a staggered mode. The plugging unit comprises a third shell and a second conductor, the second conductor is provided with an output port and a plugging port, the third shell is matched with the mounting cavity and is provided with a first positioning block matched with the first positioning groove, and the plugging unit is plugged in the corresponding mounting cavity through the third shell. The tripping and closing loop wiring terminal has the advantages that later maintenance and replacement are easy and convenient, short-circuit operation and test operation are easy and convenient, the number of output ports can be adjusted in an expansible mode according to the number of output devices of different types, plugging and pulling are easy, and wiring errors cannot be caused.

The invention discloses a nano metal oxide perfluoropolyether oil phase dispersion and a supergravity synthesis method thereof, and belongs to the technical field of material preparation. The dispersion is prepared from nano metal oxide particles modified by a surfactant and perfluoropolyether base oil in a mass ratio of (1: 5)-(1: 100). The synthesis method comprises the steps of metal salt dissolution, preparation of metal hydroxide through a supergravity reaction, oxidative conversion, in-situ surface modification and ultrasonic dispersion, and mass transfer is enhanced by a supergravity field so as to accurately control the particle size of particles. The dispersoid is transparent or semitransparent, the average particle size of nanoparticles is 3-15 nm, and the dispersoid is stable in an acid-base environment with the pH value of 1-14 and in a temperature range of-40 DEG C to 200 DEG C, is suitable for extreme working conditions such as aerospace and military industry, and has a wide application prospect.

The invention discloses a multi-modal large model space perception method based on 3D scene graph driving, and the method comprises the steps: taking a 3D semantic scene graph algorithm as an additional visual encoder of a multi-modal large model after obtaining multi-modal original information, extracting 3D object instance features in a scene and relation features between objects, and obtaining 3D perception capability; meanwhile, a structured scene topology description text is generated, and spatial perception representation with display and implicit coexistence is constructed; a point cloud punctuation mark mechanism based on geometric primitives is introduced, and standard geometry features are extracted and solidified through a shared 3D visual encoder to serve as anchor points for distinguishing different semantic units; a point cloud projection layer is constructed to uniformly map the features into semantic Token, and a composite input sequence is formed in combination with structured text prompt. Through a dual context guidance mechanism, depth space perception of a large model to a 3D scene is realized, and question and answer accuracy and logical reasoning ability of the model in a complex three-dimensional environment are significantly improved.