3 results about "Domino effect" patented technology

This invention provides a dynamic analysis method and system for domino accident risks in petrochemical plants. The method mines the correlations between different hazardous events in historical accidents of petrochemical plants, comprehensively analyzes all possible domino accident chains around the processes and equipment of relevant units, forming a domino accident chain library for the petrochemical plant; then it analyzes the reliability and failure probability of available safety barriers in the petrochemical plant; analyzes the accident escalation probability of the petrochemical plant under the action of safety barriers, characterizing the domino risk escalation probability; selects hazardous accident chains whose risk escalation probability exceeds a set risk probability rule, calculates and predicts the dynamic risk probability of the petrochemical plant based on the consequences of the hazardous accidents, executes risk warnings, and provides risk control solutions. This approach overcomes the shortcomings of existing analysis techniques, such as overly conservative results and insufficient realism, comprehensively considers domino effect accident scenarios caused by the consequences of risk events, and achieves a systematic quantitative risk assessment of hazardous accidents.

A method and system for intelligent assessment of domino effect accidents is disclosed. The method includes: constructing a graph structure representation of the evolution of domino effect accidents and establishing a causal matrix as the adjacency matrix of a graph neural network; establishing a trigger criterion database and vectorizing the features of target objects; performing initial-layer accident assessment, comparing physical consequence vectors with feature vectors to determine triggering conditions; dynamically generating domino layer accidents and performing iterative assessments, updating the causal matrix based on trigger determination results, and performing path pruning and tensor operations; summarizing risks and calculating the total risk value. The system includes a hazard source preprocessing module, an initial-layer assessment module, a trigger criterion database module, a domino layer assessment module, and an output module. This invention, by integrating physical mechanisms and a graph neural network architecture, achieves dynamic deduction and quasi-quantitative assessment of domino effect accidents, possessing cross-scenario versatility and efficient parallel computing capabilities.

This application provides a data management method, device, storage medium, and computer program product. The method includes: acquiring the three-dimensional coordinate information corresponding to each node in a tree structure; performing projection processing on each three-dimensional coordinate information to obtain first node information in M ​​first plane dimensions; where M is a positive integer; performing operation processing on the target node based on the first node information in the first plane dimensions; wherein the operation processing includes one or more of addition processing, deletion processing, and query processing, so that subsequent operation processing on the target node can be performed based on the first node information in the first plane dimensions. In this way, even in complex scenarios involving node addition, deletion, migration, and query, only the information of the corresponding node needs to be modified, without affecting other nodes, avoiding a domino effect and greatly improving system performance and stability.