2 results about "Network survivability" patented technology

This invention discloses a simulation verification method and system for power communication network maintenance based on digital twins, relating to the field of intelligent operation and maintenance technology for power and communication networks. It solves the problems of existing technologies where maintenance approval relies on manual experience, lacks dynamic simulation methods, and cannot assess the risk of superimposed faults. The key technical points are: converting the pending power communication maintenance application form into a graph operation command; inputting the graph operation command into a pre-constructed digital twin model for topology simulation, outputting the maintenance-state network topology; wherein the digital twin model is constructed from the full topology graph of the power communication network; under the maintenance-state network topology, performing a full-network static connectivity analysis, traversing and simulating the network survivability after a single fault occurs on the remaining critical links, and calculating the maintenance risk index by combining the voltage level and type weight of the carried services; comparing the maintenance risk index with a preset safety threshold, and outputting the simulation verification result.

The invention relates to an unmanned aerial vehicle dynamic self-organizing network method and system based on multi-satellite cooperation. The method comprises the following steps: receiving positioning information of an unmanned aerial vehicle and anchor point data of topological anchor points broadcasted by a satellite network through a multi-channel communication terminal arranged on the unmanned aerial vehicle; calculating the distance between the unmanned aerial vehicle and the topological anchor point based on the positioning information and the anchor point data; selecting an unmanned aerial vehicle cluster head of the unmanned aerial vehicle group according to the distance between the aircrafts and the anchors based on a smaller distance priority principle; the unmanned aerial vehicle cluster head is connected with the unmanned aerial vehicle members in the unmanned aerial vehicle group, and the problems that an existing unmanned aerial vehicle dynamic self-organizing network is fragile in topological structure, poor in high-speed moving adaptability, lack of air-space cooperative ability and insufficient in network survivability can be solved.