Regional safety risk analysis method and system based on combined model

Abstract

The invention provides a regional safety risk analysis method and system based on a combined model. The regional safety risk analysis method comprises the steps of: integrating various types of risk impact factors of a target region according to the to-be-analyzed target region, and determining a proper risk index system based on the selected risk impact factors of all levels; screening out main risk indexes in the risk index system by utilizing an improved hierarchical principal component analysis method, and calculating a comprehensive risk index of the target region based on a combined model of a three-dimensional risk matrix and a deep self-encoding network; and dividing risk levels of the target region, and drawing a comprehensive risk level thermodynamic diagram of the target regionto realize visualization of regional safety risks. The regional safety risk analysis method can be applied to urban public safety risk analysis, border area and hidden area risk analysis and prediction and the like. The regional safety risk analysis method can provide effective technical support for effectively preventing and solving the potential safety hazards in the aspects of environmental pollution, transportation, power transmission safety, resource allocation of medical treatment and public health, tourism drainage and the like in the region.

Description

technical field [0001] The invention belongs to the technical field of risk analysis, in particular to a combined model-based regional security risk analysis method and system. Background technique [0002] Regional risk analysis refers to the use of a certain evaluation method for a certain area to conduct hazard assessments on environmental pollution, transportation, power transmission safety, medical care, tourism, etc. in the area or to automatically quantify these aspects from the perspective of losses. A series of processes of assessment, its tasks include four parts: analyzing the source of risk, direct or indirect influencing factors, analyzing the possibility of risk and its consequences. In terms of time, regional risk analysis can be performed before or after a security incident occurs. With the development of science and technology, the increasingly mature regional risk technology has been widely used in many public safety fields such as landslide disasters, roa...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the differences at different levels of the risk analysis index system, most regional security risk analysis methods are relatively fixed in mode and not flexible in the process of data processing; in view of the regional distribution characteristics of geographic data, the regional Risk analysis methods give little or no consideration to the spatial impact of data

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