15results about How to "Less stringent requirements" patented technology

The application belongs to the technical field of radar signal processing and imaging, and provides a differential coupling single-frequency time-varying low-quantization imaging method, which comprises receiving a SAR echo signal, constructing a single-frequency time-varying threshold signal, single-bit quantization processing of a reference channel, single-bit quantization processing of a phase shift channel, double-channel data fusion and harmonic cancellation, and imaging processing based on a synthesized signal. The application effectively reduces the quantization noise base and improves the detection capability of a SAR system on weak targets under the premise of not significantly increasing the hardware cost.

The utility model belongs to furniture connecting equipment technical field provides a kind of connecting structure for children room non-standard plate, including first connecting piece and second connecting piece. First connecting piece has hollow accommodating cavity, one end is provided with the jack hole being communicated with accommodating cavity, and accommodating cavity includes first accommodating section, and the radial dimension of first accommodating section gradually increases along the direction away from the one end of first connecting piece. Second connecting piece includes base portion and multiple elastic locking portions along the circumferential distribution of base portion, multiple locking portions can be gathered or expanded outward along the radial direction, and multiple locking portions can be moved into first accommodating section through jack hole. When locking portion is located in first accommodating section, locking portion keeps abutment with the inner wall of first accommodating section under the action of its own elasticity, to limit locking portion from first accommodating section. The connecting structure provided by the utility model has the advantages of strong adaptability, high safety, easy installation and neat appearance.

The application discloses a mass spectrum combined characterization qualitative and quantitative method and system of unified hidden state, relates to the cross field of analytical chemistry, bioinformatics and artificial intelligence data processing, the method obtains original data and instrument / method metadata containing LC-MS / MS, encodes to form a condition vector and is used for conditional modulation, constructs wave encoder and particle encoder, respectively Tokenizes continuous chromatographic signal and discrete fragment peak set into wave encoder and particle encoder to obtain wave representation and particle representation, realizes cross-modal interaction through wave-particle fusion module, forms unified hidden state or object-level unified hidden state set, adopts two-stage training of self-supervised pre-training and task fine-tuning, and applies conditional quantitative operator and qualitative operator to unified hidden state or object-level unified hidden state set in the inference stage, and parallelly outputs quantitative results and identification score / probability, and is suitable for end-to-end qualitative and quantitative analysis in DDA / DIA scene.

The utility model belongs to polytetrafluoroethylene film processing equipment technical field discloses a kind of polytetrafluoroethylene film intelligent heating setting equipment, the equipment includes rack, unwinding mechanism being arranged on rack, winding mechanism and the heating setting box between being located unwinding mechanism and winding mechanism, heating setting box is equipped with several guide rollers and heating roller, polytetrafluoroethylene film passes through guide roller and heating roller in turn, heating setting box is divided into multiple independent temperature control zones along the width direction of film, at least one heating unit and temperature sensor are equipped in each independent temperature control zone, equipment further includes film state detection unit being arranged before the entrance of heating setting box, and a controller, controller is connected with film state detection unit, the temperature sensor of each independent temperature control zone and heating unit respectively.The utility model can be adjusted setting temperature according to the real-time state of film, improve setting uniformity and product quality, enhance process adaptability.

This invention belongs to the field of robotic grinding and polishing technology, and specifically discloses a robotic end-to-end grinding and polishing equipment and method for complex curved surface parts with rapid changeover. It includes a robot, a loading and unloading unit including loading and unloading trays, with workpieces mounted on quick-change fixtures, a loading and unloading gripping compensation unit including a compensation base, the compensation base having an internally hollow compensation protective cover, the compensation base and the compensation protective cover forming an air cavity, a compensation floating platform within the air cavity, one end of the compensation floating platform passing through the compensation protective cover and fixedly connected to a compensation flange, the compensation flange having a fixed loading and unloading compensation platform, the loading and unloading compensation platform being fixedly connected to the loading and unloading trays, and a belt grinder for rough and fine grinding of workpieces transferred by the robot. This invention, while ensuring high-precision machining consistency, greatly enhances the system's operational stability, process adaptability, and overall equipment lifespan.

This utility model discloses a forklift mast and forklift, including a mast body and a fork carriage. A plurality of first roller groups are provided between the fork carriage and the mast body for relative sliding in a vertical direction. These first roller groups are arranged side-by-side along the left-right direction of the fork carriage. Each first roller group includes multiple rollers disposed on the same side of the fork carriage and distributed vertically. The multiple rollers also include at least two second main rollers located between the first upper main roller and the first lower main roller. Furthermore, the multiple rollers also include at least one second side roller located between the first upper side roller and the first lower side roller. By increasing the number of rollers, this utility model improves the stress distribution on the rollers, thereby reducing the risk of roller failure due to overload and enhancing the overall stability between the fork carriage and the mast body.

This utility model relates to the field of steel formwork installation technology and discloses a steel formwork positioning structure. The steel formwork has positioning components installed on all four sides, and fixing holes are provided on all four sides. Positioning pins are installed on one side in both the horizontal and vertical directions, and positioning holes are provided on the corresponding positions on the other side. Adjustment holes are provided next to the positioning holes in the vertical direction. This steel formwork positioning structure, through the design of concave-convex fits on the left and right sides and rotatable positioning pins, achieves rapid alignment and initial locking of the steel formwork in the left and right directions. The concave and convex designs form a natural guide channel, eliminating the need for precise manual calibration during assembly. The convex side can naturally slide in along the mating surface of the concave side, significantly reducing the difficulty of positioning alignment. Furthermore, after the pin passes through the positioning hole, the head is rotated to be arranged laterally, utilizing the characteristic that the head length is greater than the width of the positioning hole to lock into the hole, effectively preventing the formwork from shifting before subsequent pin fixing.

This invention discloses a DC-DC converter and control method based on coupled inductors, comprising a capacitor connected in parallel across the low-voltage side; the capacitor is also connected in parallel across the high-voltage side; the coupled inductor module includes a first winding and a second winding mounted on the same magnetic core, one end of the first winding being connected to the midpoint of a first switch and a second switch, and one end of the second winding being connected to the midpoint of a third switch and a fourth switch; the other ends of the first winding and the second winding are connected to form a common connection point, which is connected to a reference potential terminal on the high-voltage side; the high-voltage side transmits electrical energy to the high-voltage side through the first bridge arm, the second bridge arm, and the coupled inductor module; this invention winds two inductors on the same magnetic core to form mutual inductance, replacing two independent filter inductors or energy storage inductors in traditional circuits with coupled inductors, significantly reducing the size and weight of magnetic devices and increasing power density.

This invention discloses a method for element doping of a thin-film solar cell and its absorber layer, relating to the field of thin-film solar cell technology. By immersing the activated absorber layer in a salt solution of a predetermined dopant element and simultaneously applying an exogenous inducing variable, the predetermined element is doped. During the doping process, the diffusion of dopant ions into the grain boundaries and lattice interior of the absorber layer is promoted, ensuring that the element is not affected by the surface morphology, hydrophilicity / hydrophobicity, internal or edge structure of the absorber layer. This solves the problems of difficult-to-control element doping uniformity, poor process stability, and low effective doping activation rate in existing technologies. It achieves the goal of diffusive doping of p-type elements in the absorber layer with high doping uniformity, high doping activation rate, controllable doping process, and compatibility with existing processes.

The invention relates to the technical field of semiconductor preparation, in particular to film cutting equipment and a film cutting method. The film cutting equipment provided by the invention comprises a base table, a fixed seat and a cutting mechanism, the cutting mechanism comprises cutter bodies in one-to-one correspondence with the side edges of the base plate, one end of each cutter body can rotate relative to the base table, automatic cutting of the thin film can be achieved by controlling the cutter bodies to rotate, and meanwhile compared with a cutting mode of a traditional manual vertical flat pressing cutter, the cutting efficiency is greatly improved. Each cutting point can extrude the edge of the substrate in the rotating process of the cutter body, the cutting force is more concentrated, and the traditional vertical cutting is changed into scraping cutting, so that the cutting is smoother, and the cutting precision is improved; meanwhile, burrs generated by cutting can be reduced, and damage to the edge of the film is reduced.

This application discloses a unified latent state-based mass spectrometry joint characterization qualitative and quantitative method and system, involving the interdisciplinary fields of analytical chemistry, bioinformatics, and artificial intelligence data processing. The method acquires raw data from LC-MS / MS and instrument / method metadata, encodes it into conditional vectors, and uses them for conditional modulation. A wave encoder and a particle encoder are constructed, and continuous chromatographic signals and discrete fragment peak sets are tokenized and input into the wave encoder and particle encoder respectively to obtain wave and particle characterizations. Cross-modal interaction is achieved through a wave-particle fusion module to form a unified latent state or an object-level unified latent state set. A two-stage training process of self-supervised pre-training and task fine-tuning is employed. During the inference stage, conditional quantitative and qualitative operators are applied to the unified latent state or object-level unified latent state set, outputting quantitative results and identification scores / probabilities in parallel. This method is suitable for end-to-end qualitative and quantitative analysis in DDA / DIA scenarios.

This application discloses a time-series prediction method and a training method for a time-series prediction model. The method includes: acquiring time-series data, which contains N data points with temporal correlation, where N is a positive integer greater than 1; modifying the state parameters of an optical quantum circuit based on the time-series data; acquiring the quantum feature vector output by the optical quantum circuit based on the state parameters; decoding the quantum feature vector to obtain M prediction results corresponding to M consecutive time-step evolutions; acquiring the quantum feature vector output by the optical quantum circuit based on the state parameters includes: performing a spatial unitary transformation on the optical quantum information of each time step input to the optical quantum circuit through the spatial unit of the optical quantum circuit; delaying the optical quantum information of the M consecutive time steps through the delay unit of the optical quantum circuit; and sampling the output of the optical quantum circuit at each time step to obtain the quantum feature vector.

This invention provides a high-order harmonic generation device based on four-aperture mirrors, comprising: a driving laser module, a first aperture mirror, a second aperture mirror, a first beam collector, a focusing mirror, a gas target, a third aperture mirror, a second beam collector, a fourth aperture mirror, a third beam collector, a metal film, a vacuum cavity, and a vacuum module. The first aperture mirror, the second aperture mirror, the focusing mirror, the gas target, the third aperture mirror, the fourth aperture mirror, and the metal film are disposed within the vacuum cavity. Through the synergistic effect of the four aperture mirrors, ring shaping, two-stage spatial filtering and efficient separation of the driving laser, as well as lossless transmission of high-order harmonics are achieved. This not only successfully attenuates the hundred-watt-level driving laser by more than a thousand times, solving the problem of optical component damage under high power; but also ensures high-throughput output of high-order harmonics while achieving efficient separation. The generated harmonic spectrum has a wide range and a small divergence angle, making it ideal as a light source for time-resolved pump-probe experiments.

The application discloses a control method for assembling floating compensation and multi-axis linkage locking clamps, and belongs to the control technology of assembling tooling clamps in automobile manufacturing. The control method comprises the following steps: scanning a stabilizer and a subframe through a camera to obtain first pose data of the stabilizer and the subframe, and obtaining second pose data of the stabilizer and the subframe by using a laser displacement sensor; planning an interference-free cooperative motion path of a plurality of servo electric cylinders by using a multi-axis cooperative motion control algorithm, and driving the plurality of servo electric cylinders to move to a pre-stopping position according to the planned path; and determining whether the clamp contacts a workpiece, and if so, switching the control mode to a force / position hybrid control mode, and driving the clamp to feed from the pre-stopping position to the surface of the workpiece. The application cooperates the multi-axis cooperative motion control algorithm and the force / position hybrid control algorithm, so that the clamp can automatically plan a cooperative path, realize soft contact and active force balance control, and finally realize uniform soft clamping based on adaptive torque regulation.

This invention discloses an edge-fitting detection method and system based on the pose calculation of a dual-body articulated road roller, relating to the field of automatic control technology for engineering machinery. It aims to solve the trajectory inconsistency problem in edge-fitting operations of articulated vehicles by establishing a vector kinematic chain model. The invention includes constructing a vector geometric model of the articulated road roller; obtaining the global coordinates of the articulation point based on the position information of the GNSS positioning antenna and the independent heading angle of the front frame, and determining the pose of the rear frame; determining the global coordinates of the tangent points of the front and rear steel wheels based on the independent heading angles of the front and rear frames, generating a dynamic operating envelope for the current moment; identifying the point in the dynamic operating envelope closest to the preset operating boundary as a key point, and using the distance between this key point and the preset operating boundary as the effective edge-fitting deviation. This invention can accurately describe the independent motion state of the front and rear frames and can calculate the position of the steel wheel edges in real time, improving the safety and accuracy of edge-fitting operations.