19results about How to "Reduce collection" patented technology

The invention discloses a transient absorption spectrum scanning data validity control and sample state determination method and system, and the method comprises the steps: obtaining a two-dimensional data matrix of multiple times of scanning, carrying out the time zero point alignment and intensity normalization preprocessing, extracting a spectrum vector at a key delay time point, and calculating the spectrum shape similarity to determine the spectrum shape consistency, and constructing a dynamic proportion parameter in a sentry band to judge dynamic trend consistency, and marking abnormal scanning and executing a processing strategy according to the results of the dynamic proportion parameter and the dynamic trend consistency. According to the invention, objective determination of validity of scanning data is realized, spectral distribution form and dynamic behavior change are described, real-time abnormity determination and control in an experiment process are supported, and reliability and repeatability of an experiment result are improved.

The application discloses a kind of based on hovering underwater vehicle's underwater unknown environment active mapping method, belong to robot environment exploration technical field.The underwater unknown environment active mapping method based on hovering underwater vehicle provided by the application utilizes hovering underwater vehicle to obtain the environmental data of unknown area of ocean in cooperation with sensor, determines the best next viewpoint according to information gain value, and determines the safe and feasible path to the best next viewpoint according to the cost of each adjacent node on the current tree as the parent node when the best next viewpoint is reached.Updating grid map in real time in this way, efficiently, quickly and accurately realize the construction and dynamic updating of map, and then assist underwater vehicle to realize the navigation of target area, and has broad application prospect in underwater environment exploration task and underwater structure inspection based on underwater vehicle and similar tasks.

An airflow pulverizing device for oil shale dry distillation waste includes a classification chamber, a pulverizing chamber, and a discharge pipe. The classification chamber contains a classification impeller with an open upper end connected to an exhaust pipe. Multiple nozzles for injecting high-pressure airflow into the pulverizing chamber are arranged in a circumferential array on the sidewall of the pulverizing chamber. The nozzle trajectories converge in the center of the pulverizing chamber to form a pulverizing zone. A guide ring is located below the classification impeller inside the classification chamber. The top surface of the guide ring has an annular groove that fits against the inner wall of the classification chamber. A guide channel extends inward from the guide ring, inclined downwards, and multiple guide channels are arranged in a circumferential array. The guide channels communicate with the annular grooves, and their ends are located above the pulverizing zone of the pulverizing chamber. This design effectively reduces the amount of residue falling into the discharge pipe, thereby reducing the frequency of residue collection and refeeding, and simplifying management processes and workload during pulverization.

The invention discloses a negative pressure dust suppression hopper, and belongs to the technical field of port coal transportation equipment. The negative-pressure dust suppression hopper comprises a platform and a discharging groove, a material grinding mechanism and a vibration mechanism are arranged on the bottom layer of the platform, a hopper and a dust suppression mechanism communicated with the hopper are arranged on the high layer of the platform, the dust suppression mechanism comprises a negative-pressure fan, a material dispersing box, a material filtering assembly and a spiral conveyor, a cavity is formed in the material dispersing box, and the material dispersing box is arranged in the cavity. The bulk material box is communicated with the side face of the top end of the hopper through a first pipeline, the first pipeline extends into the hopper and is fixedly provided with an air suction piece, one end of the negative pressure fan is communicated with the outside, and the other end of the negative pressure fan is communicated with the interior of the bulk material box through the first pipeline. The upper end and the lower end of the material filtering assembly communicate with the material scattering box and a feeding port of the spiral conveyor correspondingly, a discharging port of the spiral conveyor is in butt joint with the inner end of the discharging groove, coal materials can be collected more thoroughly, coal resources are saved, and meanwhile pollution of coal dust to port air is avoided.

This invention belongs to the field of high-precision position detection technology, and particularly relates to an absolute grating position calculation method based on an adaptive error-correcting sliding window. A photodetector array, in conjunction with an error-correcting sliding window, collects photoelectric signals of symbols, converting them into a symbol amplitude sequence. Abnormal erased symbols are identified through symbol confidence levels. If erased symbols are found, the window length is gradually expanded, and the process is repeated iteratively until a qualified target error-correcting sliding window is obtained. After removing erased symbols within the target error-correcting sliding window, grating position calculation is performed. After detecting a single acquisition position, the process is repeated for subsequent acquisition positions until the task is completed. This invention relies on adaptive iteration of the window to achieve signal error correction, reducing the interference of bad symbols on the calculation results and effectively improving the overall performance of grating position detection.

The application discloses a kind of small concave Offner spectral imaging systems based on active optics, design method and aberration correction method, belong to spectral imaging technical field.The system includes the concave spherical surface reflection main mirror of ball center coincidence, convex spherical surface grating and deformable concave spherical surface reflection three mirrors;Light beam is shot into by incidence slit, is reflected to grating spectroscopy by main mirror, then is imaged after being reflected by three mirrors.Design method adjusts curvature radius ratio and off-axis amount to make astigmatism meet requirements to determine initial structure, and surface shape coefficient is solved after optimization and surface shape is iteratively adjusted to within range.Aberration correction method is solved by constructing wave aberration matrix and driver response matrix to correct aberration.The application realizes the imaging of super-long slit large field of view at the same time, simple structure, easy to assemble and adjust, can realize the integration of large field of view general survey and local high-resolution detailed survey imaging.

Embodiments of the present disclosure disclose an image processing method, an electronic device and a computer readable medium. A specific implementation of the method comprises: obtaining a first animal image set and first shooting frame rate information of a target animal set; performing inter-frame difference processing on the first animal image set to obtain a motion information set of a first animal in the target animal set; and performing shooting frame rate switching processing according to the motion information set of the first animal and the first shooting frame rate information to obtain shooting frame rate switching information. The implementation can improve the accuracy of camera switching, improve the stability of the camera and reduce the damage rate.

The utility model discloses a steel slag bottom water injection system which comprises a slag tank used for containing steel slag, and a cavity is formed in the bottom of the slag tank. The drainage grate is used for blocking the cavity at the bottom of the slag ladle to prevent the contained steel slag from leaking out and enabling water to enter the slag ladle, and drainage holes are formed in the drainage grate; the slag braising water tank is used for placing a slag tank; and the slag cover system is used for putting the slag tank into the slag braising water tank when the slag cover system is opened, covering the slag tank after the slag tank is in place so as to spray the slag tank, and collecting steam and dust. The method has the beneficial effects that after slag is discharged from a converter or an electric furnace, the steel slag does not need to be poured into a hot braising pool for lower water fetching operation, the steel slag is directly hoisted to a designated position for operation and cooling, flying dust caused in the transferring process is avoided, dust collection operation is reduced, collection of wet dust is more convenient, efficiency is higher, and energy is saved. After bottom water injection is completed, secondary treatment of the steel slag is facilitated, and meanwhile the problem that steel billets on the pool wall in the slag braising pool deform due to uneven cold and hot heating is solved.

The utility model relates to a novel slag discharging device, and belongs to the field of solid waste treatment, the novel slag discharging device comprises a shell, one side of the shell can block an opening in one side of a cracking furnace, the side wall of the shell is fixedly connected and communicated with a discharging pipe, and a pressing plate is arranged in the shell; the cracking furnace comprises a shell and a pressing plate, the pressing plate slidably abuts against the inner wall of the shell and can seal an opening in one end of the cracking furnace, the pressing plate is connected with a driving assembly, the driving assembly is used for driving the pressing plate to separate or communicate the cracking furnace and the discharging pipe, and the shell is fixedly sleeved with a bearing outer ring. And the bearing outer ring is fixedly connected with the cracking furnace. The waste tire treatment device has the effect of improving the waste tire treatment efficiency.

This invention discloses a lightweight database statistics recommendation method, relating to the field of database technology. Addressing the shortcomings of existing database statistics collection strategies, the proposed solution includes: automatically creating the `sql_statistics` and `statistics_used` tables; loading the data from the `statistics_used` table into memory to form a statistics usage list `MapList M`; recording historical query statements in real-time to the `sql_statistics` table; collecting basic statistics, periodically determining whether the cold start phase has ended, and if so, periodically querying the system load; if the load does not exceed a preset threshold, executing corresponding processing logic to generate a temporary `MapList H`; filtering columns from the temporary `MapList H` to form a set `N`; creating statistics for all columns in set `N`, removing statistics from `MapList M` as needed, and then migrating the column names and corresponding frequencies from `N` from the temporary `MapList H` to `MapList M`, completing the update of `MapList M`, and synchronizing it to the `statistics_used` table; when the database triggers a schema change that involves statistics column names, modifying the corresponding column names in the `statistics_used` table and synchronously updating `MapList M`.

This application relates to the field of converter station safety monitoring technology, and discloses a system for full-site area safety monitoring and personnel behavior analysis. The system includes modules for data acquisition, analysis, alarm, monitoring, control, and feedback. It integrates infrared temperature measurement, video recording, vibration, and sound sensors. Through a linkage unit, it dynamically adjusts the acquisition frequency and combines an LSTM model to predict equipment temperature trends and personnel behavior. The monitoring module assesses the overall risk of the station in real time based on a multi-parameter risk assessment formula. The control module controls cooling equipment according to closed-loop logic and optimizes time-slot scheduling strategies. The storage unit uses AES-256 encryption and TLS 1.3 transmission protocol to ensure data security. The feedback module supports remote interaction via mobile devices. This system achieves high-precision intelligent control of the converter station environment, improves anomaly detection accuracy to over 98%, reduces management costs by 35%, and enhances operational safety and efficiency.

This invention discloses a high frame rate ultrasound plane wave tensor completion method based on T-SVD and angle regularization, belonging to the field of ultrasound imaging technology. The method includes: acquiring data; encoding selected and unselected angles into TCP codes; transmitting the encoded image along a specified angle; constructing a mask matrix Ω to form an incomplete tensor X containing partially known data; zero-padding the acquired RF data to expand it to the full size; reconstructing the data corresponding to the missing angles from the incomplete tensor; iteratively solving the problem using the alternating direction multiplier method; determining whether the convergence error convergence criterion has been met; and, after iteration, completing the tensor X to obtain the full angles. Composite imaging is then performed based on the obtained complete RF data. This invention solves the problems of slow convergence speed, high computational complexity, and unsmooth completion results in existing tensor completion algorithms. Under conditions of extremely limited angle sampling, this invention achieves a balance between high frame rate and high quality in ultrasound imaging through efficient low-rank tensor completion.

The application provides a software sample management method, and related embodiments can be applied to various scenes such as cloud technology, cloud security, and intelligent transportation. The software sample management method comprises the following steps: extracting a first address set containing all code repository addresses; obtaining a second address set containing all code repository addresses in a first database, and calculating the difference between the first address set and the second address set to obtain a third address set; saving the code repository addresses and initialization information in the third address set in the first database; and performing data cleaning processing on the obtained target type software sample to realize management of the target type software sample. The application also provides a computer program product, a device electronic equipment, and a storage medium, which can accurately identify the changes of the code repository and whether the software sample is a new sample, reduce the invalid and repetitive software sample management process in the sample collection process, and improve the efficiency of software sample management.

This invention discloses a filtration device and method for an underwater pelletizer, relating to the field of pellet recycling technology. The filtration device includes a housing, a rinsing assembly, a conveying frame, a first filtration assembly, and a second filtration assembly. The rinsing assembly sprays primary filtrate collected from the first filtration assembly or external clean water onto the first filtration assembly and rinses the first filter residue from the first filtration assembly onto the conveying frame. The second filtration assembly filters the rinsing liquid conveyed by the conveying frame into secondary filtrate and a second filter residue. The second filtration assembly includes a second filter cylinder, an extrusion shaft, and a second filtration motor. The second filtration motor drives the extrusion shaft to rotate around a first direction to extrude the second filter residue from the second filter cylinder. This invention solves the problem of poor wastewater filtration in existing underwater pelletizer filtration devices.

The application provides an element recognition point data processing method and device, electronic equipment and a storage medium, relates to the technical field of electronic maps, can be applied to various scenes such as cloud technology, artificial intelligence, intelligent transportation and auxiliary driving, and the method comprises the following steps: receiving recognition point data of a road image reported by a terminal; performing initial aggregation processing on the recognition point data based on a time sequence to obtain a plurality of recognition point sequences; extracting a recognition point subsequence corresponding to an element label of at least one element type from each recognition point sequence of the plurality of recognition point sequences; determining a recognition target difference and an image time difference between two adjacent recognition point data in the recognition point subsequence; and performing same element aggregation on the recognition point data in the recognition point subsequence according to the recognition target difference, the image time difference and an element similarity condition to obtain a target sequence segment corresponding to the recognition point subsequence. The application can ensure the coverage and integrity of road elements and reduce the cost of the terminal.

This invention discloses a method, system, and medium for collecting precise user preference data, including: collecting multi-source behavioral data, standardizing the data, and generating a standardized behavioral event sequence; constructing a preference perturbation sequence, generating a pseudo-probe chain, and identifying preference gap dimensions; constructing a preference topology tensor, folding the tensor structure, and extracting probe candidate vectors; inputting the data into an InterFormer network, analyzing rating interaction features, and generating probe content vectors; displaying the probe content, collecting user behavior, recording context and displayed information; constructing a causal graph, generating a causal regeneration kernel, and outputting high-confidence preference samples. This invention achieves precise, reliable, and interpretable data collection of users' true preferences by using preference perturbation and uncertainty analysis, generating probe content through topology tensor folding, and combining causal regeneration to construct preference samples.

This application relates to a low-voltage flexible flat fire-resistant cable, belonging to the field of cables. It includes multiple flat cables spliced ​​sequentially and a butt cable positioned between adjacent flat cables. The flat cable comprises multiple transversely spaced cores, an outer sheath covering the cores, and a flame-retardant wrapping tape covering the cores. A ventilation duct is provided between adjacent cores within the outer sheath, and an air exchange channel is provided between the ventilation duct and the cores on both sides. The internal structure of the butt cable is the same as that of the flat cable, and both ends of the butt cable are equipped with a self-locking quick-connect mechanism between the butt cable and the flat cable for stable connection and quick disassembly and replacement. The butt cable also has a collection device for collecting smoke and dust from the ventilation duct. This application has the effect of preventing the toxic smoke and dust generated when the insulation layer and inner sheath of the cable cores burn due to short circuits or other reasons from spreading to the outside of the cable, thus improving the safety of the environment surrounding the cable.

Methods, systems, and computer-readable media include receiving requests for digital components from a user device; receiving a dataset of user-provided information about a particular product design; generating a visual representation based on the dataset that maps design factors to the geometry of a potential product design; segmenting the visual representation based on design factor values; selecting segments containing fewer than a threshold number of data points; selecting digital components; dynamically changing the presentation of the digital components from which information about the segments is solicited from the user based on the selected segments; distributing the dynamically changed digital components for presentation at the user device; obtaining feedback information from the user device about the segments containing fewer than a threshold number of data points via a feedback mechanism; and modifying design factors of a particular product design at least in part based on the feedback information.