11results about How to "Efficient matching" patented technology

The invention discloses a comprehensive guarantee order dispatching method and system for a large-scale business scene, and relates to the task distribution and data processing technology, and the method comprises the steps: obtaining a to-be-dispatched order, and enabling any order to be distributed to a corresponding vehicle; establishing a dynamic vehicle path planning problem DDVRPTW model with a time window according to the vehicle condition, the road network condition and the user demand when the vehicle executes the order task; establishing constraint conditions according to actual orders and vehicle conditions; for different order dispatching scenes, selecting a corresponding adaptation algorithm to solve the DDVRPTW model; and according to a solving result, the order to be dispatched is dispatched. According to the method, the dynamic vehicle path planning problem model with the time window is constructed, the spatial-temporal constraint and the dynamic disturbance of the guarantee task are accurately described and displayed, and efficient matching of resource demand and supply is realized.

The invention relates to a picometer-level surface shape measuring device for a large-aperture optical element. The picometer-level surface shape measuring device comprises a laser, a first polarization beam splitter, a first acousto-optic modulator, a second polarization beam splitter, a quarter-wave plate, a beam expander group, a local gating measuring surface unit, a 45-degree reflector, a second acousto-optic modulator, a non-polarization beam splitter and a photoelectric detector. The invention further provides a picometer-level surface shape measurement method for the large-aperture optical element, high-precision phase information is obtained based on the double-frequency heterodyne interference principle, regionalized scanning is achieved on the surface of the measured optical element through the local light gating module, and full-aperture high-resolution surface shape measurement can be completed without depending on a mechanical moving platform. The device has the advantages of high mechanical error resistance, high measurement precision, simple system structure and the like, and is suitable for surface shape detection of ultrahigh-precision optical elements.

This invention relates to the field of visual inspection, and more particularly to a method and system for visual positioning of a bottle. The method is used to perform pose positioning of a transparent bottle. First, in response to the bottle's positioning, a pre-configured ring light source is activated to provide supplementary illumination and a photographing command. Then, in response to the triggering of the ring light source and photographing command, an image of the bottle is acquired. Next, the bottle image undergoes de-reflection and enhancement processing to obtain a feature-enhanced image. Then, feature extraction is performed on the feature-enhanced image to obtain multi-scale features containing the bottle's outline and local features. These multi-scale features are matched with preset template features. If the matching result is satisfactory, abnormal features in the multi-scale features are removed to obtain corrected features. Finally, the corrected features are input into a preset bottle pose algorithm to obtain pose parameters that are applied to downstream devices for alignment. Compared to existing technologies, this invention achieves precise positioning of transparent bottles.

The application provides a backside incidence and top reflection integrated fiber-waveguide coupler, which comprises a substrate, an SOI substrate, a linearly variable grating device, a reflection cavity structure, a lens focusing fiber and a fiber fixing assembly, wherein the SOI substrate is arranged on the top surface of the substrate, the linearly variable grating device is arranged on the SOI substrate, the reflection cavity structure is arranged above the grating waveguide in the linearly variable grating device and is used for reflecting the uncoupled light back to the grating area to enhance the coupling efficiency, and the lens focusing fiber and the fiber fixing assembly are arranged on the back surface of the substrate, so that the incident light signal enters the grating waveguide part of the grating area through the back surface of the substrate at a preset inclination angle. The fiber-waveguide coupler of the application can improve the coupling efficiency, widen the coupling bandwidth, release the front surface space of the chip, and is beneficial to high-density photon integration and low-temperature environment application.

The invention discloses a full-hydraulic full-circle needle beam trolley and method for compressed air energy storage, and relates to the technical field of beam trolleys, the full-hydraulic full-circle needle beam trolley further comprises a moving frame, the moving frame is fixedly connected to the interior of a frame assembly and arranged on the outer side of a needle beam assembly in a sleeving mode, a sliding rail is fixedly connected to the outer side of the needle beam assembly, side grooves are formed in the two sides of the moving frame, and the sliding rail is fixedly connected to the sliding rail; a containing groove is formed in the bottom of the movable frame, a plurality of sliding blocks used for sliding are arranged between the movable frame and the sliding rail, and mounting pieces are arranged between the sliding blocks and the movable frame. A displacement sensor in the detection mechanism can accurately measure the actual abrasion depth of the bottom of the sliding block, and therefore distributed and normalized monitoring of the abrasion state of the sliding block is achieved. When it is monitored that the abrasion loss of any sliding block reaches the preset highest threshold value, the system can give out early warning in time to remind an operator to replace a specific sliding block, risks such as equipment clamping stagnation, precision reduction or sudden failure possibly caused by excessive abrasion of the sliding block are avoided, and construction safety and continuity are guaranteed.

The application provides a service-aware-based dynamic allocation method for carbon satellite ground system resources, relates to the technical field of computing power resource allocation, and comprises the following steps: through analysis, a benchmark task priority distribution of a benchmark task node distribution is obtained, and then a container resource pre-call distribution is output after execution container scheduling timing analysis; a high-load node sequence is projected to the container resource pre-call distribution, and a container resource pre-call sequence is located; after judging the load demand of real-time weather satellite and carbon satellite data streams, the container resource pre-call sequence is triggered to perform timing elastic scheduling of container resources. The application solves the defects of the prior art, such as the rigidity of ground system resource allocation, low utilization rate of task processing container resources, and serious delay of carbon satellite monitoring data processing. The application achieves the technical effects of multi-dimensional resource pre-scheduling strategy and elastic feedback closed-loop control mechanism, realizes dynamic load-driven efficient resource matching, and significantly improves the utilization rate of heterogeneous container resources.

This invention provides a data processing method and related products for graph databases. The data processing method includes: acquiring a document query request; matching multiple candidate document entities in the graph database using graph retrieval based on the document query request; acquiring the document query vector of the document query request; acquiring the content attributes of each candidate document entity, where the content attributes are in vector form and used to represent the content of the corresponding candidate document entity; and using vector retrieval to match one or more of the content attributes of each candidate document entity with the highest similarity to the document query vector, which are then used as the target document entity. In this method, graph retrieval and vector retrieval support and cooperate with each other, achieving the goal of improving the overall accuracy and efficiency of document queries in graph databases.

The invention discloses a cargo packaging method and device, and the method comprises the steps: obtaining cargo packaging information which comprises container information and to-be-boxed cargo information; the container information comprises container length information, container width information and container height information; the to-be-boxed cargo information comprises cargo weight, volume, shape, material, compressive strength, frangibility grade, transportation priority, destination and storage environment requirements; and processing the container information and the to-be-boxed cargo information to obtain a cargo boxing scheme. According to the method, the HMM model is introduced to realize global optimal inference of the cargo placement sequence, so that local optimal traps of a traditional algorithm are avoided, and the number of iteration adjustment times of the scheme is reduced; through standardized construction of the cargo list and the boxing list, efficient matching of the cargo information and the container information is realized, compared with manual planning or a traditional algorithm, the generation efficiency of the boxing scheme is remarkably improved, and full-process intelligent management is realized.

The invention discloses an oral cavity three-dimensional scanning system and method based on dual-band heterogeneous structure light coding, and belongs to the technical field of optical three-dimensional scanning. The system comprises a light source, a coding light modulation device, at least two image acquisition units and a data processing unit, the light source can respectively emit first wave band light and second wave band light with different wave bands; the coding light modulator modulates the first wave band light into a main coding pattern containing discontinuous stripes and modulates the second wave band light into an auxiliary coding pattern containing continuous stripes, and the stripes of the two coding patterns are alternately arranged at intervals; the modulated first wavelength light and the modulated second wavelength light irradiate the surface of a measured area, and each image acquisition unit acquires a coded image reflected by the measured area; and the data processing unit decodes the main coding image to obtain a reference matching point pair and parallax data, decodes the auxiliary coding image based on the result to obtain a high-density extended matching point pair and extended parallax data, and completes integrated three-dimensional reconstruction through triangulation after integrating the two types of data.

This application provides a job information recommendation method, relating to the field of information recommendation technology. The method includes: in response to a search operation targeting a first search term, if it is determined that a user has a job-seeking intention based on a second search term and user characteristics, then displaying recommended job information determined based on the second search term and / or user characteristics; wherein the first search term does not include job-related words, and the search type of the search operation is not a job search type; the second search term is the first search term or a search term corresponding to a historical search operation including the first search term. This application embodiment can determine whether a user currently using the search function has a job-seeking intention, and if the current user has a job-seeking intention, then displaying recommended job information that matches their job-seeking intention.

The invention relates to the technical field of land-air heterogeneous cluster planning, in particular to a land-air heterogeneous cluster multi-target cooperative tracking and surrounding method, which comprises the following steps: acquiring images and depth information in real time through a visual sensor, and detecting the images to obtain target positions and a grid map; obtaining a target prediction position based on Kalman filtering; summarizing the target position and the target prediction position obtained by each unmanned platform; determining a preferential tracking target based on the formed global multi-target position information; forming a cooperative tracking group of each target based on the preferential tracking target; according to a target prediction position in the global multi-target position information, determining a surrounding sub-target point of the current unmanned platform in the cooperative tracking group based on equal-angle division; performing obstacle avoidance path planning to obtain a surrounding path; performing cooperative tracking hunting according to the hunting path; according to the invention, the resource allocation rationality and tracking continuity in multi-target tracking can be improved.