5results about How to "Help design" patented technology

The invention provides a wind flow field simulation method and device for a wind driven generator. The wind flow field simulation method comprises the steps of obtaining fan data of the wind driven generator in a running state and mesoscale meteorological simulation data of a wind power plant where the wind driven generator is located; based on the fan data and the mesoscale meteorological simulation data, the acting force of the wind driven generator on the CFD flow field is calculated to serve as an additional source item of a preset turbulence model, the additional source item can reflect the acting force of the wind flow field acting on an impeller of the wind driven generator in the running state, and the preset turbulence model is used for CFD flow field simulation; cFD flow field simulation data is calculated based on boundary conditions for CFD flow field simulation and a predetermined turbulence model including additional source terms to reflect a wind flow field around the wind turbine, the boundary conditions being determined based on the mesoscale meteorological simulation data. The method achieves the unsteady simulation of the air flow field of a multi-spatial-scale operation fan, and achieves the more real and accurate inversion of the air flow field of the operation fan.

This invention relates to a display panel and a display device including the display panel. The display panel includes: a pixel circuit connected to a data line, a plurality of gate lines, a plurality of constant voltage nodes, a first light-emitting element, and a second light-emitting element; a first gate driver configured to output a first scan signal; a second gate driver configured to output a second scan signal; and a multiplexer configured to select the first scan signal, the second scan signal, and a gate cutoff voltage, and output them to the corresponding gate lines.

The application discloses a millimeter wave and terahertz channel modeling method based on a migration generative adversarial network, and the method comprises the following steps: constructing a generative adversarial network model in an offline stage, pre-training the generative adversarial network model by using a simulation data set, performing migration learning and fine-tuning on the pre-trained generative adversarial network model, and obtaining a millimeter wave and terahertz channel of the migration adversarial network model; and in an online stage, a large amount of channel data consistent with measured data can be generated, thereby solving the problem of lack of measured data of the millimeter wave and terahertz, and helping the design of a millimeter wave and terahertz communication system. Compared with a standard channel model in a traditional third-generation mobile communication cooperation plan, the application has good performance in channel modeling, the root mean square error is increased by 9 dB, the structural similarity index measurement is higher, the problem of lack of measured data is solved, and the application is verified in an actual measured channel.

The application discloses a kind of simulation method and device of building grounding grid, wherein, method includes: step S1, according to existing building power system, using PEEC to establish the electrical parameter model of building grounding grid;Step S2, according to the electrical parameter obtained from the electrical parameter model, establish building grounding grid multi-port network equivalent circuit model;Step S3, using PEEC to obtain the ground potential distribution curve of grounding grid, for calculating the contact voltage and step voltage of human body;Step S4, according to building model and ground potential distribution curve, the electric shock risk of human body is evaluated.The application adopts the method that PEEC algorithm and multi-port network equivalent circuit model are combined, carries out modeling and simulation calculation to the complex grounding system of building group, can evaluate the contact voltage and step voltage of human body under fault condition, realizes the analysis to electric shock risk;Meanwhile, it will help the design of low-voltage grounding system and the configuration of leakage protector, low-voltage circuit breaker etc.

The present invention relates to an inertial platform system control method based on configuration information: (1) uploading a configuration information package to an inertial platform system through a communication interface; (2) the inertial platform system collects and analyzes the three-axis angle output by a frame angle sensor and the three-axis acceleration output by a quartz accelerometer sensor, obtains the configuration information and parses the configuration information package to obtain the control type and control time corresponding to each step; (3) the inertial platform system extracts the control type and control parameters of the step according to the sequence of steps in a task control flow, and calls a control program preset for the control type to execute the corresponding step according to the control type and control parameters. After the time required for the control of the current step is exhausted, the next step in the task control flow is automatically executed until the task is completed, thereby realizing the dynamic change of the inertial platform system control method.