12results about How to "Improve discreteness" patented technology

The invention discloses a target detection algorithm-oriented data architecture optimization method in the field of visual detection, and the method comprises a video data management module, a data automatic labeling module, a special data sample reservation module and an image data de-duplication module. Business data of different sources are subjected to renaming management in a unified mode, videos are intercepted by adopting different video interception frequencies and stored as picture data, naming of the picture data is based on the names of the source videos, and related frame numbers are added to serve as supplements. According to the method, the redundancy of the service data set is reduced by utilizing an image similarity calculation method, the dispersion degree of the service data set is improved, the time cost of subsequent manual annotation and the resource cost used by transfer learning are reduced, and meanwhile, the detection performance of an AI visual detection technology in an on-site scene is ensured.

An embodiment of the present invention provides a data encryption method, device, electronic device and storage medium, the method comprising: in response to a data encryption instruction, obtaining user data corresponding to the data encryption instruction and encryption parameters for the user data, the encryption parameters comprising at least the number of bits of a random number and a value parameter for circumscribing pi; circumscribing pi according to the number of bits and the value parameter to obtain a circumscribing result value corresponding to the encryption parameter; obtaining a timestamp corresponding to the data encryption instruction, and calculating a random number for the user data according to the timestamp and the circumscribing result value; encrypting the user data using the random number to generate corresponding encrypted user data.

The invention provides a survey data sharing processing method, which belongs to the technical field of sharing management, and specifically comprises the following steps of: taking a data packet without a manual processing data packet as a to-be-processed target, and identifying the to-be-processed target on the basis of an identification processing method of the to-be-processed target and a similar condition of boundary association data between the to-be-processed target and other to-be-processed targets; and determining an identification processing sequence of the to-be-processed target, and performing identification processing on a cultivated land layer of the to-be-processed target based on the identification processing sequence and an identification processing method, and a sharing processing method of the to-be-processed target is determined by utilizing a recognition processing method of the to-be-processed target in the later period of the to-be-processed target and the similarity condition of the boundary association data between the to-be-processed target and the recognized to-be-processed target, so that the reliability degree of boundary recognition processing is improved.

The application discloses a kind of based on intravascular imaging optimization three-dimensional vascular model interframe interpolation method;Obtain the sequence image group collected by intravascular imaging technology;And each frame image in sequence image group is carried out denoising processing;Using segmentation algorithm extracts the lumen boundary in each frame image, obtains the two-dimensional profile sequence image group of vascular lumen with frame data;Interpolation times are calculated;According to interpolation times, difference image group is generated, and according to the frame data of each image in difference image group, it is inserted into two-dimensional profile sequence image group;According to the last obtained two-dimensional profile sequence image group, generate high-resolution three-dimensional vascular model.The application is obtained by the frame interpolation technology of image collected by intravascular imaging technology, and the frame distance of adjacent image is reduced, and the continuity and smoothness of three-dimensional vascular model are improved.

The invention relates to the technical field of biomass charcoal loaded nanoscale zero-valent iron production equipment, in particular to a biomass charcoal loaded nanoscale zero-valent iron production device and a production method thereof.The biomass charcoal loaded nanoscale zero-valent iron production device comprises a fixed chassis, supporting pipes are installed on the outer side of the fixed chassis in the circumferential direction of the fixed chassis at equal angles, and positioning circular rings are placed at the tops of the supporting pipes; a cylinder is fixedly installed on the inner side of the positioning circular ring, the inner wall of the cylinder is a regularly-arranged concave-convex face, a discharging opening is formed in the position close to the bottom of the cylinder, a sealing ring is concentrically welded to the bottom of the cylinder, a disc is rotatably installed on the inner ring of the sealing ring, and a penetrating hole is formed in the center of the disc. Circular holes are symmetrically formed in the disc with the center line of the penetrating hole as the axis. Main supporting plates are horizontally mounted in the middle sections of the outer sides of the supporting pipes, and auxiliary supporting plates are welded to the outer sides of the two symmetrical main supporting plates in an extending manner; a three-dimensional turbulent flow field can be formed in the cylinder, and the cleaning effect on the biomass charcoal loaded nanoscale zero-valent iron is improved.

The present invention discloses a whole-plate crystal fine-tuning method. First, the frequency of products at all positions of the substrate to be etched is measured, and the product data is transmitted to the server via the network; then the fine-tuning machine measures the substrate to be etched, reads the No. 2 frequency information of the product at the test position of the substrate on the server, calculates the difference and writes it into the dynamic library; the fine-tuning machine adjusts the frequency according to its own measurement value and the aforementioned difference; this scheme 1. enables flexible production of the production line, and one device processes crystals of different frequencies and loads at the same time; 2. solves the problem of random deviation of the test caused by the two contacts of the probe; 3. solves the problem of systematic error of the test caused by the working environment of the fine-tuning machine; 4. There is no need to align the crystal on the fine-tuning machine, thereby improving production efficiency. The present invention also discloses a system for fine-tuning the whole-plate crystal.

The invention discloses high-elasticity and high-weather-resistance modified asphalt and a preparation method thereof. The preparation method comprises the following steps: performing high-speed shearing swelling on paraffin-based matrix asphalt, hydrogenated nitrile rubber powder and nano silicon dioxide powder to obtain an asphalt mixture; the preparation method comprises the following steps: mixing an ethylene-vinyl acetate copolymer, cycloundecane and ethylene glycol monoethyl ether acetate to obtain an ethylene glycol monoethyl ether acetate solution, and emulsifying an asphalt mixture and the ethylene glycol monoethyl ether acetate solution to obtain the high-elasticity and high-weather-resistance modified asphalt. The asphalt and the ethylene-vinyl acetate copolymer form a new chemical bond through an emulsification reaction, and cycloundecane improves the density and hardness of hydrogenated butadiene-acrylonitrile rubber and fills gaps in the asphalt, so that the crystallization ability between rubber molecules and asphalt molecules is improved, the crystallinity of the asphalt is improved, and the mechanical property of the asphalt is improved. The cohesive force and elasticity of the asphalt can be enhanced, so that the elasticity and weather resistance of the asphalt are improved, and the defects of insufficient elasticity and weather resistance of the asphalt in the prior art are overcome.

The present invention discloses a metal recovery device for waste circuit boards, which solves the problem that a temperature difference exists between the contact position between the rapping component and the waste circuit boards of the existing device, so that the waste circuit boards are adsorbed on the rapping component, which affects the working efficiency of the rapping component in the long run. The device comprises: a recovery body, wherein the recovery body comprises a main body shell, the main body shell is fixed on a supporting base, and a feeding port is provided on the main body shell, a discharging port is provided on one side of the main body shell, and a driving seat is provided on the other side of the main body shell; the device is characterized in that a circuit board pretreatment mechanism is provided in the main body shell and is connected with the feeding port, and is used for crushing pretreatment of the circuit board, and a metal discrete separation mechanism; a metal discrete component is provided in the present application, which can scatter the crushed circuit board on the one hand, and heat itself and the circuit board on the other hand to prevent the circuit board melt from being adsorbed on the metal discrete component.

The present invention discloses a face liveness detection method and a network model with better fraud discrimination. The method includes constructing an unstructured image input fraud clue generator that weakens the facial structure information of the face, and using multi-scale metric learning embedded in the XBM cross-batch storage mechanism to train the fraud clue generator; inputting the unstructured image and the fraud clue feature map into the auxiliary classifier to carry out supervised classification learning; constructing an overall loss function based on the fraud clue regression loss, triple loss and auxiliary classification loss, and optimizing the network model; in the test phase, constructing the face image to be tested into an unstructured image, inputting it into the fraud clue generator, calculating the fraud score according to the output fraud clue feature map, and determining whether the face image to be tested is a fraud image according to the fraud score. The technical solution of the present application can extract more difficult sample pairs, while weakening invalid facial structure information, thereby improving the accuracy and generalization ability of face liveness detection.

The present invention discloses a method for constructing a set of standardized members based on the identification of strong convection, comprising the steps of: acquiring historical meteorological data according to the forecast area and forecast period, and performing preprocessing to construct a data training set; using the data training set to construct and train a classification recognition model for identifying the type of strong convection; constructing a set member generation model, and training based on different types of strong convection, respectively, to construct a set member generation mode for each type of strong convection; using the classification recognition model to classify the weather of the pre-generated set members, and then selecting the corresponding set member generation mode to generate the set standardized members according to the classification result. The present invention can effectively classify strong convection, and generate set members in combination with historical strong convection information of the same type. The present invention does not need to integrate the mode, and can effectively improve the discreteness, and reduce the demand for computing resources when generating set members.

The invention discloses an iron-silicon magnetic powder core and a preparation method thereof, and relates to the field of iron-silicon magnetic powder cores. The preparation method of the iron-silicon magnetic powder core comprises the following steps: step 1, adding a passivating agent into iron-silicon powder and mixing; 2, adding an adhesive into the iron-silicon powder, and mixing; 3, adding the iron-silicon powder into stearate, and mixing; 4, the mixed iron-silicon powder is subjected to dry pressing to form a magnet powder core green body; and 5, cooling and forming the magnetic powder core blank. According to the preparation method of the iron-silicon magnetic powder core, when iron-silicon powder and a passivating agent are mixed, firstly, the iron-silicon powder and the passivating agent are put into a first feeding port and a second feeding port correspondingly, the iron-silicon powder and the passivating agent directly enter a pre-mixing unit, the pre-mixing unit conducts preliminary mixing on the iron-silicon powder and the passivating agent, and then the iron-silicon powder and the passivating agent are discharged downwards in a rotating mode; the materials enter the bottom of the mixing tank body, and then the stirring and mixing unit can be used for carrying out secondary stirring and mixing on the materials discharged by the pre-mixing unit, so that the iron-silicon powder and the passivating agent can be rapidly stirred and mixed.

The utility model discloses a stirring device for processing dry-mixed mortar with good stirring effect, and relates to the technical field of dry-mixed mortar processing, the stirring device comprises a stirring barrel, the stirring barrel is respectively provided with a feed port and a discharge port, the stirring barrel is provided with a stirring assembly, the inner wall of the stirring barrel is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with the stirring assembly. The interior of the supporting rod is of a hollow structure, a protective shell is arranged on the supporting rod, and the stirring assembly comprises a motor, an upper rotating rod and a lower rotating rod. By arranging the stirring assembly, the rotating directions of the stirring blades on the upper rotating rod and the stirring blades on the lower rotating rod can be opposite, so that the dispersion of mortar in the stirring barrel can be improved, the mortar can be stirred more uniformly and fully, and meanwhile, the stirring and mixing efficiency of the mortar can be improved; and dust generated in the stirring process can be treated, and the situation that the dust drifts to the outside, pollutes the environment and hurts workers is avoided.