11results about How to "Build fast" patented technology

The invention discloses a GPU-based graph vector index construction method and device and a storage medium, and relates to the technical field of graph index construction. The method comprises the following steps: fragmenting an original data set based on a clustering algorithm to obtain a first preset number of fragmented data subsets; sending the ith fragmented data subset to the GPU, wherein i is a positive integer; constructing a local graph vector index of the ith fragmented data subset in the GPU; sending the (i + 1) th fragmented data subset to the GPU until all local graph vector indexes are obtained; and constructing a hierarchical global graph vector index according to all the local graph vector indexes. According to the method, the production line of the producer-consumer model is constructed, so that the data transmission time of the PCIe bus is completely covered by the calculation time of the GPU, the I / O bottleneck is eliminated, and the construction speed of the graph index is improved.

The application discloses a kind of power grid real-time topology fast construction method and equipment, comprising: obtaining power grid data;The power grid data is parsed as the data set of database node and edge, migrates to graph database, the graph database is according to complete description power system object characteristics and with existing power system model data definition keeps consistent and adapts graph database characteristics to carry out graph database construction;Topological search analysis is carried out to the graph database after migrating data set, and the power grid is divided into connected area local model, and the state of the connected area local model is superimposed on the state of the opening and closing device, and is refined into electrical island;Switch state change analysis is carried out in the range of electrical island, and the final power grid real-time topology is formed.The advantages of the present application can significantly accelerate the speed of power grid real-time topology analysis and construction, provide millisecond-level calculation model for state estimation, power flow calculation and other power grid online analysis, thereby improving the overall efficiency of large power grid real-time calculation.

A quick-connection structure for factory construction scaffolding includes adjustable uprights and connecting rods between two uprights. The adjustable uprights have evenly spaced internal threaded holes and spaced clamping blocks. The connecting rod has an insertable elastic connection structure at its end, which connects to the clamping blocks to secure the connecting rod to the adjustable uprights on both sides. The insertable elastic connection structure, built into both ends of the connecting rod, includes a pin, a spring, a pull rope, and a pull rope guide wheel. The clamping blocks have insertion holes adapted to the pins. Pulling the pull rope disengages the pin from the insertion hole; releasing the pull rope causes the spring to move the pin, allowing it to insert into the insertion hole. In use, workers only need to align the connecting rod and the adjustable uprights, then apply downward pressure to the connecting rod to quickly complete the fixing operation. The entire process requires no additional tools, significantly reducing installation steps and time consumption.

The invention discloses a grid voltage control method suitable for an X-ray machine, the X-ray machine comprises a carbon nanotube, the carbon nanotube comprises an anode, a cathode and a grid, the anode is grounded, and the cathode is connected with a high-voltage circuit; the output of the high-voltage circuit is tube voltage; the gate voltage control method includes connecting a gate voltage control circuit with an output of the high voltage circuit such that a gate voltage floats above a tube voltage. According to the grid voltage control circuit, the grid power supply is connected to the high-voltage circuit of the cathode, so that the reference ground of the grid power supply is changed to the output voltage of the high-voltage circuit, no matter how the high-voltage output changes, the voltage difference between the grid and the cathode is always the output of the grid power supply, the voltage difference is small, the insulation is good, and sparking is avoided; the device is small in size, low in cost and high in grid voltage establishing speed, the carbon nano tube can be subjected to rapid pulse exposure, and the service life of the carbon nano tube is prolonged.

The application provides a distributed index construction method based on improved iSAX coding, first, aiming at the digital feature selection problem, in order to increase the coding similarity of similar data, a similarity digital coding is designed, and through the transposition of the matrix, the problem of different weights of high bits and low bits of each digital coding in the whole digital coding is solved. Secondly, aiming at the problem of high time consumption in the traversal process caused by the too high index tree, a B+ index tree based on the similarity digital coding is designed, the number of child nodes is increased, the height of the tree is reduced, and the access speed of adjacent nodes is improved. And a leaf partition snake-shaped packing algorithm is designed, which guarantees the load balance, shortens the leaf node packing time, improves the index construction speed, and improves the overall index construction speed compared with the traditional distributed index construction algorithm, and provides a more efficient index framework for the similarity query process.

The utility model relates to a kind of integrated press-in board, the integrated press-in board, including plate body, and the frame being covered in the periphery of plate body, the plate body is sequentially provided with lower layer, middle layer and upper layer along its thickness direction, the lower layer is the decorative plate embedded in the lower part of frame, the upper layer is the metal plate embedded in the upper part of frame, the middle layer is the polyurethane foam filled between frame, metal plate and decorative plate, at least one side of each side side distributed along the circumference of frame outside is splicing side, and remaining each side side is non-splicing side, the splicing side is equipped with splicing part, and the splicing part is splicing concave part or splicing convex part. The integrated press-in board, with easy processing, on-site construction splicing speed is fast, plate structure strength is high and the advantages such as good sealing.

This application provides a data processing method and system, computer equipment, and medium for robot simulation, including: acquiring a video stream and extracting keyframe images from the video stream to obtain a keyframe image sequence; determining the shooting pose and 3D point cloud corresponding to the video stream based on the keyframe image sequence; and forming 3D mesh data adapted to the robot simulation environment based on the shooting pose and 3D point cloud. This application directly outputs 3D mesh data for the robot simulation environment based on the video stream, realizing an end-to-end closed loop from video stream to robot simulation scene construction. This not only solves or alleviates the problem of related technologies being unable to output 3D mesh data directly applicable to industrial-grade simulation environments, but also provides efficient and practical basic support for the smooth migration of robots from simulation to reality. It better achieves seamless integration with existing robot simulation toolchains, eliminates the dependence on traditional sparse registration, and improves the efficiency of robot simulation development.

The invention belongs to the technical field of underground construction engineering, and particularly relates to an overpass existing subway tunnel protection structure which comprises isolation piles. A plurality of isolation piles are arranged, and the plurality of isolation piles are divided into three groups; the multiple isolation piles are arranged as main supporting components, the overall stability of the structure is enhanced, the isolation piles serve as anti-floating piles of the underground transportation hub structure, the anti-floating capacity of the structure is improved, and due to the arrangement mode of the three sets of isolation piles, when the structure bears loads, force can be more evenly dispersed, local stress concentration is avoided, and the service life of the structure is prolonged. The four inserting holes formed in the fixing frame provide accurate positions for inserting of the inserting plates, it is ensured that the conversion raft plate can be stably hoisted on the fixing frame, the conversion raft plate serves as a bottom plate of the underground transportation hub structure, the upper load is borne, the load is transmitted to the multiple isolation piles through connection with the fixing frame, and therefore the conversion raft plate is prevented from being damaged. And the bearing capacity of the structure is further enhanced.

The invention is suitable for the technical field of 3D ecological soil material printing, and provides a 3D printing ecological material based on immature soil and a preparation method of the 3D printing ecological material. Comprising 45%-60% of raw soil, 5%-10% of calcined gypsum, 10%-20% of aggregate, 10%-18% of sulphoaluminate cement, 5%-12% of silica fume powder, 0.2%-0.8% of Wacker dispersed rubber powder, 0.5%-1.0% of a water reducing agent, 0.8%-1.5% of a retarder, 0.5%-1.5% of a water repellent, 0.2%-0.8% of a defoaming agent, 0.5%-1% of steel fibers and 0.2%-0.5% of anti-cracking fibers. By adding the different functional components, the physical properties such as compressive strength, compactness, resilience modulus, water resistance, freezing resistance and shear strength of a wall are guaranteed, and the problems existing in current market materials are solved.

The application discloses a recyclable steel trestle foundation pit ramp and a construction method thereof, which comprises steel columns, bearing beams, Bailey frames, distribution beams and bridge steel plates, wherein the steel columns are arranged from high to low along the foundation pit gradient, the bearing beams are arranged on two steel columns arranged in the same row, the Bailey frames are arranged on the bearing beams, the distribution beams are fixed on the Bailey frames through fixing members, the bridge steel plates are arranged on the distribution beams, and movable supports are arranged at bridge abutment contact positions to guarantee the buffering and damping effects, and the lower bridge abutment is provided with a top steel plate which is arranged in contact with a clay layer to reduce rigid collision and relieve vehicle jumping.

This invention discloses a modeling and optimization method and system for integrated energy systems. The method comprises: establishing a standardized component model framework including component variable classes, component constraint classes, and component objective classes; using component variable classes to represent decision variables in each component of the system, using component constraint classes to describe the internal rules or operational logic of each component, and using component objective classes to describe the optimization objective functions related to each component; associating component variables with specific relationships through an energy bus to generate energy flow balance constraints between components; integrating component variables, component constraints, component objectives, and energy flow balance constraints to form an overall system optimization model and solving it to obtain the optimal equipment configuration scheme and operation strategy. This method, by establishing a standardized unified "variable-constraint-objective" modeling framework, significantly reduces the workload of independent modeling of individual equipment and lowers the system integration complexity and error rate.