9results about How to "Reduce collection" patented technology

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.

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.

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.