5results about How to "Reduce simulation error" patented technology

The invention relates to the technical field of port operation simulation software systems, and particularly discloses a quay crane operation process simulation system and method for port intelligent driving. The quay crane operation process simulation system comprises a data interaction module, a quay crane motion simulation module, a service simulation module, a simulation control module, an operation backtracking module, an analysis and optimization module and a simulation display module. The method has the beneficial effects that a complex port operation process is completely mapped to a digital space through fine dynamic modeling and coding, a port manager can visually observe and analyze the whole operation process in a virtual environment through full-process digitization, and potential problems can be found and solved in time; based on the constructed 3D simulation environment, natural environment data and random events are combined to carry out work process simulation, meanwhile, simulation data are fed back to a simulation system to carry out closed-loop control, simulation errors are reduced, and the work process simulation authenticity is improved.

The invention provides a cluster dynamic scheduling method and system for FPGA channel simulation and a medium, and belongs to the technical field of information communication. The method comprises the following steps: acquiring a to-be-scheduled data stream in a cluster; taking the real-time information age as a timeliness index of the data stream, and calculating a priority weight between the data stream and the scheduling node by using the real-time load of the scheduling node to be distributed; performing priority division on a pre-constructed directed acyclic graph to obtain task priorities; according to the task priority and the priority weight, distributing the data flow to a scheduling node to obtain the data flow on the scheduling node; updating the load of the scheduling node, and updating the information age; and according to the timeliness index of the data stream and a preset timeliness threshold, optimizing data resources of the scheduling node to obtain a scheduled data stream.

The invention discloses a power transmission line lightning stroke simulation analysis method and system, and relates to the technical field of power transmission lines, and the method comprises the steps: obtaining the information of a power transmission line, collecting the lightning information of a power transmission line region, obtaining a region lightning data set, and carrying out the lightning stroke simulation of the power transmission line according to the region environment information and simulation lightning data. And obtaining lightning stroke simulation data. The regional lightning data set is divided through the lightning attribute characteristic quantity, the lightning data is analyzed, the accuracy and stability of the lightning data are ensured, the accuracy of subsequent lightning simulation is improved, the lightning current model is further adjusted through the lightning data correction term and the lightning current peak correction coefficient, and the lightning simulation accuracy is improved. Simulation errors are reduced, the influence of lightning stroke on the power transmission line is accurately evaluated through the lightning stroke risk index of the power transmission line, the safety, stability and reliability of a power system are improved, and faults and losses caused by lightning stroke are reduced.

The application provides a modeling method of SOI FinFET devices suitable for various reliability effect coupling researches, a three-dimensional structure model of a FinFET device is obtained by using Sentaurus TCAD software and structural parameters modeling; simulation of total dose effect and simulation of hot carrier effect are carried out on the three-dimensional structure model, and a second electrical characteristic parameter after simulation coupling effect is obtained; the three-dimensional structure model is changed by using the second electrical characteristic parameter, so that the electrical characteristic parameter of the changed three-dimensional structure model is consistent with the second electrical characteristic parameter, thereby simulating the real working state of the SOI FinFET device under the condition of total dose coupling hot carrier effect. The application can effectively reduce the device simulation error, provide the accuracy of modeling, provide a model basis for more reliability effect coupling analysis of device simulation; in addition, the application has better convergence, and is suitable for various semiconductor devices with complex structures.

The utility model belongs to the technical field of hot press molding, and discloses a device for detecting the wind speed in an autoclave, a working platform is arranged on the bottom wall in the autoclave, and the device for detecting the wind speed in the autoclave comprises a data acquisition assembly, a plurality of wind speed measuring instruments and a plurality of supporting assemblies. The supporting assemblies are arranged on a first plane in the autoclave and extend in the vertical direction, the multiple supporting assemblies are arranged at intervals in the radial direction of the autoclave, and each supporting assembly is connected with at least one wind speed measuring instrument in the vertical direction. The multiple wind speed measuring instruments are arranged on the first plane at intervals through the multiple supporting assemblies, so that the multiple wind speed measuring instruments are arranged in the first plane in the horizontal direction and the vertical direction, and the wind speeds of different positions on the first plane can be detected respectively. The data acquisition assembly is arranged on the working platform and is in communication connection with the wind speed measuring instrument, and the data acquisition assembly can acquire data detected by the wind speed measuring instrument and store the data.