3 results about "Active structure" patented technology

The application provides a house source three-dimensional modeling method, equipment and a storage medium, wherein the method comprises using a camera to shoot a first video of the interior of a house, and splitting the first video into multiple indoor images. The indoor image set is subjected to semantic segmentation, and movable obstacles in the indoor image set are removed according to K labels. The active structure in the house interior structure image set is marked according to the K labels, and the two sides of the active structure are subjected to connected component analysis. The house interior structure image set is converted into M three-dimensional point clouds, and the M three-dimensional point clouds are reconstructed based on the spatial connection relationship. N reconstructed point clouds are subjected to Poisson reconstruction, and the interior three-dimensional model of the house source is obtained. The application adopts the semantic segmentation mode to exclude the influence of furniture and other movable obstacles on the house structure, uses the active structure to improve the accuracy of the spatial relationship between different regions in modeling, and represents the space separated by the active structure, so that the house is comprehensively and accurately three-dimensionally modeled.

A fish passage based on space-time transformation of fish migration habit, comprising a fishway surrounded by a water side wall, a fishway bottom plate and a bank slope wall, a plurality of partition structures are arranged in the fishway to divide the fishway into a plurality of pool rooms, and the bottom end of the water side wall is fixedly connected to the fishway bottom plate; the bank slope wall is an active structure, a horizontal hydraulic system is arranged in the fishway bottom plate and used for pushing the bank slope wall away from or close to the water side wall; the partition structure comprises a fixed partition and an extensible guide plate; the extensible guide plate is liftable installed on the fishway bottom plate, the extensible guide plate is of an extensible structure, the extensible end of the extensible guide plate is connected to the bank slope wall and can slide up and down on the bank slope wall; the fixed partition is fixedly connected to the water side wall and the fishway bottom plate, and the fixed partition and the inner side end of the extensible guide plate are arranged in a spaced mode to form a vertical gap. In the application, the bank slope wall is arranged as an active structure, and the extensible guide plate can be lifted, so that the whole fish passage can provide flexible and changeable fishway space.

The application discloses a kind of based on the safety evaluation, design method and structure of grid dam of debris flow occlusion degree. Among them, the safety evaluation method includes the following steps: S100: based on the solid matter concentration of debris flow prone area, the particle size value corresponding to the cumulative content of 95% in full grain size distribution curve, the average slope in the cross section range of grid dam, the average width of channel, the size of debris flow, the minimum particle size value of the largest block stone in watershed, the opening width of grid dam, the height of grid dam, the correlation value of wedge structure angle and 60 °, the correlation value of the total amount of debris flow solid matter and the storage capacity of wedge beam type grid dam, calculate critical occlusion discriminant coefficient;S200: based on the critical occlusion discriminant coefficient, evaluate the safety of grid dam. The evaluation, design method and structure incorporate the relative relationship of debris flow size and dam storage capacity, and the influence of wedge diversion and other active structure parameters is quantified, which improves the prediction accuracy of occlusion state in the actual operation of grid dam to some extent.