10results about How to "Offset negative effects" patented technology

The utility model relates to the technical field of unmanned aerial vehicle rotor protection, in particular to an unmanned aerial vehicle rotor protection device. The protection device comprises a protection cover which surrounds the periphery of the unmanned aerial vehicle rotor wing through a fixing assembly. The upper end and the lower end of the protective cover are open, any cross section of the protective cover is round, and the caliber of the upper end of the protective cover is larger than that of the lower end of the protective cover. By designing the big-end-up protective cover with two open ends, the flared protective cover further increases the flow velocity of the rotor wing airflow on the premise of not changing the original airflow of the unmanned aerial vehicle rotor wing, thereby increasing the lift force of the unmanned aerial vehicle.

The invention provides a construction method, system, equipment, medium and program product of a traditional Chinese medicine origin traceability model fusing element fingerprints and secondary metabolite outlines, and correspondingly provides a traditional Chinese medicine origin traceability method, equipment, medium and program product based on the model. Relates to the field of medicinal material identification. According to the method, element fingerprints and chemical component profiles are fused according to metallomics and metabonomics, and an element fingerprint substance and secondary metabolite profile substance combined recognition mode is innovatively put forward and is used for geographical source recognition of traditional Chinese medicine with radix peucedani as a mode. And an aggregation model is innovatively adopted, and respective optimal models of elements and chemical components are further integrated, so that the classification precision is improved, and the scientificity and accuracy of traditional Chinese medicine quality evaluation are remarkably improved.

The utility model discloses a ventilator sharing a silencer, which comprises an air distributor, a first fan and a second fan, the first fan and the second fan are respectively mounted on two ventilation pipelines of the air distributor, air inlet ports of the first fan and the second fan are connected to the same silencer, the silencer is a hollow cylinder with an upper opening and a lower opening, and the silencer is a hollow cylinder with an upper opening and a lower opening. The inner diameter of the silencer is larger than the diameter of an air inlet end opening of the first fan or the second fan, an upper opening and a lower opening of the silencer are both arranged to be hopper-shaped flaring openings and covered with a net cover, and air suction assemblies with the air direction facing the interior are arranged in the upper opening and the lower opening of the silencer. The upper opening and the lower opening of the silencer are both bucket-shaped flared openings, more outside air can enter the silencer at the same time, meanwhile, the bucket-shaped flared openings of the silencer are beneficial to installation of a larger air suction assembly, the air suction assembly further improves the air inlet amount of the silencer, it is ensured that the air inlet amount is larger than the air amount needed by a draught fan, and therefore the air flow speed is reduced, and the service life of the draught fan is prolonged. And the noise is reduced.

The application discloses a low-power-loss image compression processing system based on an ISP chip and particularly relates to the technical field of data compression. The application quantifies compression difficulty through parameters such as edge texture density, pixel fluctuation amplitude and uniform area proportion, quantifies image redundancy degree in combination with neighborhood correlation performance value, image entropy value and high-frequency component proportion, completes double-dimension feature grading and linkage matching of hardware power consumption quota, encoding combination and compression performance benchmark, realizes dynamic fine scheduling of hardware computing power and power consumption resources, avoids resource waste caused by simple images, guarantees the compression quality of complex images and effectively achieves the low-power-loss operation target.

A method for dynamic beam optimization in satellite communication and a satellite communication terminal are disclosed. The terminal has a locally pre-installed hybrid architecture deep learning model. The specific steps are as follows: The terminal collects spatiotemporal feature data such as space, time, orbit, interference, and position in real time and stores it in a local historical database; it calculates the instantaneous phase angle of the satellite based on the position features and satellite ephemeris, identifies the scene type, and adapts the interference features to obtain optimized features; it extracts historical multi-frame spatiotemporal position features that match the current phase angle, combines them with the optimized features to construct a multi-dimensional feature matrix, inputs it into the model, and outputs spatial and temporal feature scores; it calculates dynamic weights by combining real-time interference and scene, balances the spatiotemporal score decision ratio, integrates historical reputation scores to calculate a comprehensive beam score, selects the optimal beam, and stores the decision result back into the local historical database. This invention integrates spatiotemporal multi-dimensional features, scene-based signal processing, and local deep learning inference to achieve beam optimization, improving the reliability of satellite communication and the efficiency of beam decision-making.

The invention belongs to the technical field of large-area photovoltaic cells, and particularly relates to a method for realizing mechanical planarization of the surface of a perovskite thin film through blade coating and a preparation method of a perovskite solar cell. The method comprises the following steps: firstly, preparing an initial perovskite layer by adopting a blade coating, gas quenching and annealing process, and then dropwise adding an alcohol auxiliary solution to carry out blade coating, gas quenching and annealing treatment again to flatten the surface of the initial perovskite layer so as to obtain a final perovskite thin film layer; the uniformity and smoothness of the upper surface of the thin film are effectively improved through the dropwise adding of the auxiliary solution and the synergistic effect of the two times of blade coating, gas quenching and annealing processes. When the perovskite solar cell is applied to the perovskite solar cell, the carrier transmission efficiency between a perovskite light absorption layer and an electron transmission layer is effectively improved; the moisture absorbed by the thin film in the blade coating process is reduced, and the damage of the moisture to the perovskite thin film in the subsequent annealing process is reduced, so that the overall performance of the perovskite solar cell is effectively improved.

This invention relates to the field of image recognition technology, and more particularly to a method and system for automatic correction of image annotation boundaries based on semi-supervised learning. The system includes: an image processing module, comprising an acquisition unit for acquiring the image to be corrected and the features of the labeled boundary; a model training module, comprising a model training unit for training an initial model based on the labeled boundary features; a boundary correction module for detecting and automatically correcting the boundary features to be corrected according to a semi-supervised learning model; a matching degree adjustment module for determining the matching degree of the temporal features of the image to be corrected based on the acquisition clock offset of the image to be corrected; a pseudo-label adjustment module for determining the iterative evolution rate of pseudo-labels based on the rate of increase of the test set boundary error in the prediction model; and a learning rate adjustment module for determining a noise robustness learning rate scaling factor based on the noise proportion in the pseudo-labels. This invention improves the stability of image annotation boundary correction.

This invention relates to the field of next-generation livestock farming technology, specifically to a ventilated pigsty, comprising a pigsty body, a driver, a first cylinder, and a second cylinder. The first cylinder is equipped with a first piston, which is driven by the driver via a first piston rod. The first piston has a vent hole with a valve. The first cylinder and the second cylinder are connected by a one-way valve. The inner diameter of the second cylinder is smaller than that of the first cylinder, and there are multiple second cylinders. The second cylinder is equipped with a second piston, and an elastic element abuts against the end of the second cylinder away from the one-way valve. A filter cartridge is connected to the second cylinder, and the second cylinder and the filter cartridge are connected by a perforation. The filter cartridge is filled with deodorizing material and / or dust-removing material. An air outlet is provided at the end of the filter cartridge away from the perforation, and an air inlet is provided at the end of the first cylinder away from the one-way valve. This design ensures continuous ventilation while preventing odor leakage and continuously improving the air quality inside the pigsty.

The present invention discloses a flexible electric actuator based on spraying non-metallic electrodes and a preparation method thereof; the ionic polymer intermediate layer is made by dissolving TPU colloid particles in a DMF solution and mixing them evenly with an ionic liquid in a certain proportion, and then dripping them on the surface of a specific glass container and drying them through a specific temperature program; the upper surface and the lower surface of the ionic polymer intermediate layer are covered with a layer of non-metallic electrode layer by an ultrasonic spraying process; the non-metallic electrode layer precursor solution is formed by uniformly mixing non-metallic conductive polymer materials, carbon nanotubes, dimethyl sulfoxide, ethanol and ionic liquids in a certain proportion, and the electrode layer precursor solution is attached to the upper and lower surfaces of the ionic polymer intermediate layer by an ultrasonic spraying process, and the spraying process is continuously heated by a hot stage. The present invention can not only be conveniently and conveniently carried out large-scale preparation and custom patterning at low cost, but also the actuation speed of the device will be better guaranteed.

This invention relates to the field of intelligent connected vehicle technology, addressing the shortcomings of existing intelligent connected vehicle communication network trust assessment and consistency coordination. Specifically, it relates to a collaborative control method for trusted interaction among intelligent connected vehicle groups under a zero-trust architecture. By fusing direct and indirect trust functions to obtain a dynamic comprehensive trust assessment function, it achieves real-time fusion of the global communication network and the comprehensive trust calculation model, accurately quantifying the degree of interaction between vehicles and significantly improving the safety performance of ICV group interaction. A distributed collaborative control algorithm based on state feedback adapts to differences in vehicle trust levels, achieving the goal of consistent coordination among vehicle queues and ensuring the stability of collaborative control in dynamic communication scenarios for the ICV group. The integrated design of zero-trust security protection and vehicle communication network allows the security of communication relationships in the ICV group system to be updated in real time, adapting to the communication topology changes under dynamic vehicle movement.