18results about How to "Improve interference" patented technology

The utility model provides a kind of multifunctional flip type mobile phone shielding box, including box and soundproofing module, box includes outer storehouse body and the flip of rotation connection in outer storehouse body, soundproofing module is composed of outer soundproofing layer and inner soundproofing layer, and inner soundproofing layer is equipped with the mobile phone accommodating cavity of accommodating, mobile phone accommodating cavity bottom is equipped with the sound interference collection recording interference module of interference sound and wireless charging module;Outer storehouse body inside is equipped with storage chamber, and soundproofing module is arranged in storage chamber, the inner wall of the chamber box is equipped with shielding component, when the flip is covered on outer storehouse body, the shielding component and soundproofing module hinder mobile phone accommodating cavity and the sound and signal transmission of outside. The utility model reduces the sound pickup effect of mobile phone to outside sound by recording interference, electromagnetic shielding and independent soundproofing module cooperation, improves the recording interference and electromagnetic shielding effect of shielding box.

The utility model relates to fluid control technical field especially relates to a flow path control valve and fluid control device, including the support plate, the flow guide plate, the frame board and the bottom plate that form the overall structure in turn layering together along the thickness direction, the frame board has the opening part, still include the valve plate, the valve plate has the deformation part and the junction part that connect, the valve plate is fixed in the bottom plate through the junction part, and the outer peripheral edge of deformation part exists a part as the free area, and the deformation part can produce the elastic deformation under the pressure effect, the utility model discloses flow path control valve is advantageous to further promote the thin degree of the air leakage valve on one hand, the other hand makes the overflow passage formed after the deformation of deformation part not depending on the hole structure of deformation part can realize the communication of inlet hole and flow guide hole, and therefore deformation part can realize maintaining the overall structure, can better inhibit the risk that deformation part appears the deformation even the cracking because of setting the hole structure, ensure the stability and reliability of control valve work, improve the service life.

This disclosure relates to a camera module and an electronic device. The camera module includes: a first decorative member having an accommodating space for accommodating a first lens group of the camera module; wherein the first decorative member has a grounded conductive portion; a second decorative member disposed on the first decorative member and having a light-transmitting area aligned with the opening of the accommodating space; the second lens group of the camera module covering the light-transmitting area; and conductive adhesive disposed between the first decorative member and the second decorative member, and electrically connected to the conductive portion and the second decorative member respectively. By providing conductive adhesive and grounding it, embodiments of this disclosure can reduce electrostatic interference generated by the electrical portion of the second decorative member on the camera module, and also achieve connection stability between the first and second decorative members.

This application discloses a composite fixing structure for fixing a PCB, comprising: a carrier plate with multiple adsorption holes; a first abutment edge and a second abutment edge fixedly disposed on the periphery of the carrier plate; multiple pressure blocks disposed on the first abutment edge; a venting plate fixedly disposed below the carrier plate, the venting plate including a normally venting area and a first venting area; a first through hole in the first venting area selectively connected to or disconnected from a vacuum pump, and the first through hole in the first venting area opens or closes progressively from the side closer to the normally venting area to the side farther away from the normally venting area; and a pressure plate movably disposed above the carrier plate; the projection of the pressure plate on the carrier plate in a first direction is longer than the length of the carrier plate in the first direction, and the projection at least covers a portion of the first venting area. This composite fixing structure organically integrates vacuum adsorption and mechanical pressing, and can adaptively adjust the adsorption area and pressing position according to the PCB size, ensuring fixing reliability.

This invention discloses a hardware device and control method for automatic charging of robots, aiming to solve the technical problems of poor charging contact reliability, disconnect between software and hardware protection, and lack of authentication in existing technologies. The device includes a control unit (CMU), a contact quality detection sensor, and an independent hardware gate circuit. Furthermore, the device has a low-voltage wake-up function, actively outputting a small voltage supply when the robot's battery is depleted. The CMU is configured to perform a digital handshake for authentication and a contact quality check before main charging; main charging only starts after both are successful. The independent hardware gate circuit forcibly disconnects the main power switch when the CMU fails (e.g., fails to send a heartbeat signal). This invention significantly reduces the risk of charging-related safety accidents, improves charging connection stability, and avoids accidental charging of incompatible batteries through a dual-layer software and hardware protection closed loop.

The invention provides an optical microcavity dispersion measurement method based on dispersion linetype real-time calibration, which is applied to the technical field of microcavity dispersion measurement, and comprises the following steps: converting the position extraction of an optical sideband into the position extraction of a dispersion linetype, and demodulating the optical sideband through a frequency mixer to obtain a sideband harmonic peak of a specific dispersion linetype; adjusting the phase difference between a modulation signal and a demodulation signal of the high-stability radio frequency source, identifying the position of a dispersion line type sideband harmonic peak, and extracting the frequency interval of the sideband harmonic peaks on the two sides of each resonance mode; dynamically calibrating the optical fiber Mach-Zehnder interferometer based on the number of sinusoidal signal cycles in the frequency interval of the dispersion line type sideband resonance peaks on the two sides of each resonance mode to obtain a calibrated Mach-Zehnder interferometer; and generating a dispersion measurement result of the optical microcavity according to the calibrated Mach-Zehnder interferometer interference signal. According to the invention, the dispersion measurement precision and the automation level can be improved.

The application discloses a kind of automatic adjustment methods of adhesive film baking machine roller temperature, to solve the problem of existing roller temperature regulation exists lag and deviation.The method comprises: real-time acquisition of the working condition data of roller group;Based on the working condition data, call material flow property online identification model iterative calculation melt viscosity and solidification conversion rate, generate boundary constraint condition;Synchronous simulation heat conduction, heat convection and roller surface deformation process is constructed to digital twin multi-physics field coupling simulation model, pre-computes the temperature disturbance value of future control period;Temperature disturbance value and boundary constraint condition are input into composite control model, and the temperature set value is optimized using model predictive control algorithm rolling, and the control output is generated by adaptive disturbance observer to compensate for unmodeled disturbance;According to the priority of control output, dynamically allocate bus bandwidth, and issue temperature adjustment command to heating execution unit.The application realizes the advance compensation of roller temperature field distribution deviation, reduces the adjustment lag and deviation.

The application relates to the technical field of power electronics, and discloses a multi-mode redundant power supply system based on a bidirectional inverter power board, which comprises a topological structure acquisition module, which is used for acquiring a reconfigurable circuit topological structure; an optimal structure generation module, which is used for generating an optimal topological structure according to the reconfigurable circuit topological structure and a multi-parameter real-time monitoring system; a parameter acquisition module, which is used for dynamically adjusting control parameters under different temperature conditions according to a temperature characteristic model library; a predicted state acquisition module, which is used for obtaining a predicted state of the multi-mode redundant power supply system in a future time period according to a preset digital twin model; and a predicted control module, which is used for controlling the multi-mode redundant power supply system according to the predicted state. Through the fusion of multi-stage topological structures, wide-bandgap device characteristic optimization and digital twin technology, the application realizes efficient operation in a wide load range, strong adaptability under extreme environmental conditions and high reliability in long-term operation.

This invention discloses a dual-piezoelectric tube driven inertial motor and its control method, along with a scanning probe microscope, relating to the field of piezoelectric tube technology. The invention includes a base, a first piezoelectric tube, a second piezoelectric tube, and a U-shaped sliding body. The first and second piezoelectric tubes are parallel to each other along their axes, with one end fixed to the base and the other end free. The two parallel arms of the U-shaped sliding body, referred to as the left and right sliding rods, are elastically connected via a junction at the bottom of the U-shaped sliding body. The left and right sliding rods are coaxially inserted into the inner walls of the first and second piezoelectric tubes, respectively. This invention not only ensures that the two sliding rods consistently and stably abut against the inner cavities of their respective piezoelectric tubes, guaranteeing effective transmission of driving force, but also improves the overall mechanism's motion accuracy, load-bearing capacity, and anti-interference capability through the coordinated and alternating operation of the dual-drive piezoelectric tubes, laying a structural foundation for achieving high-precision and high-stability stepping motion.

This invention relates to a method for preparing high-performance, low-temperature-coefficient Sm-Co permanent magnet materials, belonging to the technical field of samarium-cobalt permanent magnet materials. It solves the problem in the prior art where the magnetic properties and temperature coefficient are difficult to balance due to the addition of heavy rare earth elements in 2:17 type samarium-cobalt magnets. The method includes: S1, preparing the alloy composition Sm according to a mass percentage... a Ho b Co c Fe d Cu e Zr f Where a, b, c, d, e, and f are the mass percentages of Sm, Ho, Co, Fe, Cu, and Zr, respectively, and satisfy the following conditions: 18≤a≤25, 1≤b≤5, 40≤c≤50, 19≤d≤24, 5≤e≤6, 2.5≤f≤3.5, and a+b+c+d+e+f=100; S2, induction melting and casting; S3, medium crushing; S4, sequentially pulverizing and sieving by fluidized bed jet milling, followed by ball milling under nitrogen protection; S5, magnetic field orientation and delayed pressure molding; S6, sintering, solution treatment, and aging treatment under micro-negative pressure. The magnet prepared by this invention has a room temperature remanence Br≥11kGs, and the absolute value of the remanence temperature coefficient |α|≤0.03% / ℃ in the range of 25~150℃, achieving a good balance between high remanence and low temperature coefficient, which can meet the long-term service requirements of precision instruments in a wide temperature range environment.

This invention discloses a controller orientation localization method and system based on the main lobe direction of beamforming, comprising: acquiring and receiving intermediate frequency or baseband signals from a UAV terminal to obtain timestamped IQ data, and dividing it into multiple time slices according to a preset duration; determining a corresponding angle label for each time slice to form an angle-data segment mapping relationship, wherein the angle label is generated by UAV motion scanning; performing spectral or time-frequency analysis on the IQ data of each time slice to determine the target frequency band where the target signal is located; extracting and normalizing intensity indicators; constructing radiation pattern data; performing radiation pattern smoothing and main lobe sector determination; and performing orientation output and confidence calculation. This invention does not require strict array calibration and multi-channel angle measurement, and can achieve controller orientation estimation under single-channel or few-channel UAV reception conditions. This invention does not rely on communication protocol demodulation, and can construct the radiation pattern based on the energy characteristics of the target frequency band, making it applicable to different standards and encryption conditions.

The present disclosure provides a deep rock mass three-dimensional ground stress measuring device and method, and relates to the technical field of geological surveying. The device comprises: a stress gauge integrated with a distributed optical fiber sensor and a three-dimensional electronic compass is installed at a predetermined depth in a borehole; the azimuth and inclination of the borehole are automatically obtained through the three-dimensional electronic compass; the reflected wavelength data is collected through the distributed optical fiber sensor before and after the full stress release operation on the borehole wall surface; the wavelength data and the directional data are transmitted to a data processing unit, which automatically calculates and outputs the three-dimensional ground stress tensor and the principal stress in the geodetic coordinate system according to the principle of full stress release of the local borehole wall surface. Thus, the problems of low efficiency, large error and difficulty in realizing multi-point synchronous in-situ monitoring caused by the complicated manual installation, the dependence on external equipment for posture measurement and the limitations of single-point measurement in the traditional method are solved, and the full-process automatic, high-precision and expandable three-dimensional ground stress in-situ measurement is realized.

The invention relates to a multi-modal large language model-based three-dimensional affordability positioning method and system for a body robot, and belongs to the technical field of robot perception and body intelligence. According to the scheme, a multi-modal large model availability positioning framework is provided, the framework effectively combines semantic understanding, multi-modal fusion and 3D space positioning through an end-to-end learning mode, and the features of 3D scene data and natural language instructions are deeply mined and fully utilized. A novel scene-level affordability data representation is constructed, so that robot interaction tasks, such as door opening, drawer pulling and object grabbing, in various complex unstructured environments become more accurate and efficient; according to the method, adaptive sampling and a coarse-to-fine reasoning thought are fused, the calculation efficiency and robustness of understanding of a robot on a large-scale three-dimensional scene are improved by optimizing a data retention strategy and enhancing space consistency, and the limitation of a traditional method under the complex background and the ambiguous instruction in the real world is effectively solved.

The application relates to a method for installing and implementing a lamp failure automatic identification system. The method comprises the following steps: S01, installing a building lamp, installing the lamp on the building; S02, installing a master controller, a sub-controller and a distribution box, sequentially connecting the distribution box, the master controller, the sub-controller and the building lamp; S03, performing lamp debugging; S04, monitoring installation, installing a camera for monitoring, the camera is arranged to face the building, and all the building lamps can be seen in the camera picture used for monitoring; S05, determining the specific position of the lamp; S06, regularly checking lamp failure, analyzing and identifying the lamp failure through the video / picture captured by the camera; and S07, confirming the lamp with failure by adopting an optimization learning algorithm, and feeding back the position of the lamp with failure to a user. The lamp position is automatically analyzed accurately through the combination of software and hardware, optimization learning and other modes, the scheme is resistant to outdoor light interference, and the error rate of judging the lamp failure position is low.

This invention relates to an organic fluorescent sensor array for the sensitive and selective detection of sarin using fluorescence methods, and its preparation method. The organic fluorescent sensor material is assembled with compounds of formula (B) and formula (C), which are insensitive to nerve agents, along with the compound of formula (A), to form an organic fluorescent sensor array consisting of material 1 and material 2. This improves upon the poor stability and susceptibility to interference when using compound (A) alone for sarin detection, while maintaining the sensitivity for sarin detection, thus improving the fluorescence stability and anti-interference capability of the detection.

The utility model discloses a fluid-magnetic-solid coupling-based cold spraying elbow nozzle and spraying equipment, the fluid-magnetic-solid coupling-based cold spraying elbow nozzle comprises a pipe body and a coil assembly, the pipe body comprises a convergent part, a throat part, an expansion part, a bending part and an extension part, one end of the convergent part far away from the throat part is provided with an opening, and the other end of the convergent part far away from the throat part is provided with an opening. The two opposite ends of the bending part are communicated with the expansion part and the extension part respectively, an outlet is formed in the end, away from the bending part, of the extension part, the bending part is bent, the coil assembly comprises a support and a coil part arranged on the support, the coil part covers part of the bending part and part of the extension part, and the coil part is used for generating a non-uniform magnetic field; spraying particles can be dynamically guided under the action of magnetophoresis force, path deviation caused by inertia is compensated, the directionality and deposition efficiency of the spraying particles are remarkably improved, the problem that a coating is not uniform is solved, the spraying particles are concentrated in the center of a flow channel through magnetic field regulation and control, the collision frequency of the spraying particles and a bent part is reduced, and the service life of the nozzle is prolonged.

This invention relates to the application of microalgae polysaccharides in enhancing intestinal immunity in dairy cows, belonging to the field of feed technology. The microalgae polysaccharides prepared by this invention are used to increase the secretion of IgA, IgG, and IgM by the intestinal mucosa. This invention uses a specific ratio of kelp buds, Dunaliella salina, and Haematococcus pluvialis for pre-enzymatic hydrolysis using trypsin and nattokinase for a certain period of time, followed by enzymatic hydrolysis using hemicellulase and pectinase for a certain period of time. The resulting microalgae polysaccharide product has excellent effects in promoting the secretion of immunoglobulins in the dairy cow intestine, significantly increasing the content of IgA, IgG, and IgM in the dairy cow intestine, thereby enhancing intestinal immunity. It can serve as a highly effective alternative component for improving the intestinal immune function of dairy cows.

This invention relates to the field of millimeter-wave radar technology, specifically to a dual-chip 4D vehicle-mounted millimeter-wave radar antenna array, comprising 6 transmitting antennas and 8 receiving antennas; wherein the transmitting and receiving antennas are arranged in the horizontal and elevation directions in physical space. This invention achieves high aperture utilization of the antenna array through a non-uniform, differentiated array design, while leaving sufficient space for PCB components and RF wiring; through the layout of 6 transmitting antennas and 8 receiving antennas, multiple equivalent arrays can be synthesized in the horizontal and elevation directions using virtual channel technology, improving angular resolution; the layout fully considers grating lobe and sidelobe suppression, effectively improving artifact and interference problems in the target detection process.