4results about How to "Realize on-demand distribution" patented technology

The invention provides a power data transmission method and system based on cloud edge collaboration. The method comprises the following steps: firstly, acquiring first state data of power equipment and second state data of a corresponding supporting structure; performing correlation analysis based on the determined deformation parameter of the support structure and the waveform change of the first state data, and transmitting a risk level signal generated by analysis, the first state data and the second state data to a cloud end; comparing the second state data with a pre-stored safety range to obtain a comparison result; generating an acquisition control instruction based on a comparison result and issuing the acquisition control instruction to an electric power station side; and finally, adjusting the acquisition frequency according to the acquisition control instruction, and executing data acquisition and transmission according to the adjusted acquisition frequency. According to the technical scheme provided by the invention, the adaptive adjustment of the data acquisition frequency along with the equipment operation risk level is realized, and the transmission efficiency and the monitoring accuracy are also considered.

This utility model relates to the field of fluid circulation system technology, specifically disclosing an electronic oil pump with an internal circulation flow control structure. The electronic oil pump includes a pump body with a cavity. The cavity is divided into an outer circulation cavity and an inner circulation cavity by a partition. The outer circulation cavity supplies oil to external oil-using equipment. The inner circulation cavity houses a motor and a controller, and the partition has an oil hole. The electronic oil pump also includes a one-way control unit located in the inner circulation cavity and connected to the partition. The one-way control unit covers the oil hole, enabling automatic adjustment of the oil flow channel opening based on oil pressure. The oil flow channel is the oil flow path formed by the oil hole and the one-way control unit. This solves the problem in the prior art where electronic oil pumps struggle to dynamically adjust the internal circulation flow according to actual operating conditions.

A video forwarding system based on ROS2 and WebRTC comprises a data acquisition and publishing module used for acquiring image data and publishing the image data to a corresponding ROS2 topic; the multi-process streaming pushing module is used for creating an independent streaming pushing sub-process for each path of video stream needing to be forwarded outwards and sending the video stream to the streaming media forwarding module; the streaming media forwarding module is used for receiving the independent video stream from the multi-process streaming pushing module and forwarding the video stream to a user terminal according to a user subscription relationship; the signaling and process management module is used for receiving an external instruction from a user side and dynamically creating or destroying the corresponding streaming pushing sub-process according to the instruction; and the user terminal module is used for sending an instruction to the signaling and process management module and subscribing and receiving the video stream from the streaming media forwarding module through the WebRTC technology. The method has the advantages of extremely low end-to-end delay, extremely low remote equipment resource occupation, strong expandability and flexibility and the like.

The application discloses a kind of microchannel radiator automation design methods based on topology optimization, which comprises: the mathematical model of topology optimization based on variable density method is established, design domain is dispersed into finite element and is endowed with continuous design variable, the function relationship of flow resistance, thermal conductivity and design variable is established by fluid domain interpolation and solid domain interpolation, and optimization problem is constituted with maximum heat exchange as target and solid material volume as constraint;An automatic optimization platform based on COMSOL-MATLAB is constructed, parameterized modeling, physical field solution, sensitivity analysis are realized by COMSOL Livelink for MATLAB interface, IPOPT optimization algorithm is integrated to automatically update design variable until convergence;Thresholding processing is carried out on the converged pseudo-density field, and the manufacturable microchannel geometry model is extracted from the fluid-solid interface.The application realizes the full-process automation design of microchannel radiator, can adaptively generate the optimal topological structure according to the heat source distribution, greatly improves the heat dissipation performance, and effectively solves the non-uniform heat dissipation problem of high heat flux chip.