Public area crowd gathering early warning method and system based on risk probability evaluation

Abstract

The present invention discloses a public area crowd gathering early warning method and system based on risk probability evaluation. The method comprises that: images are collected in real time from anintelligent monitoring device and measurable parameters of the crowd are obtained from the image stream; a center master server builds a four-level early warning model based on the measurable parameter values of the crowd and a two-dimensional risk matrix; and based on the model, analysis is carried out through the input measurable parameters of the crowd, and the automatic alarm is issued basedon the prediction results. The method and system disclosed by the present invention are based on real-time determination and prediction, dynamically analyze and warn the crowd flow and other states, collect statistics of, analyze, and evaluate the measurable parameters of the crowd to form a risk probability evaluation result, and further generate corresponding early warning information; and the method and system has good real-time performance and high predictive accuracy, can provide warning as early as possible to minimize the occurrence of dangerous situations, and is suitable for airports,large transport hubs, and other regional facilities with large crowd mobility and high degree of crowdedness, so that public safety can be improved, and the loss of people and property can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of risk early warning, in particular to a method and system for early warning of crowd gathering in public areas based on risk probability assessment. Background technique [0002] With the steady development of the economy, people's demand for materials and culture has increased, and correspondingly, the number of urban public places (referred to as public places or public areas, that is, urban public spaces) has also increased sharply. Public places have always been the main venues for a variety of businesses such as entertainment, culture, traffic and transportation, sports and religious gatherings. [0003] With the sharp increase in the number of public places, more crowd gathering activities are carried out in various public places, and safety incidents such as crowd stampedes have aroused great concern. According to incomplete statistics, tens of thousands of people die in emergency situations all ov...

AI Technical Summary

Problems solved by technology

However, insufficient and outdated public places and facilities may greatly increase the risk of high mobility and high levels of crowding

[0006] (2) The inherent characteristics of public places are significantly exposed to disasters, which makes the disaster relief system relatively weak

[0021] 1. Illegal hijacking of aircraft in flight, illegal hijacking of aircraft on the ground,

[0022] 2. Destruction of an aircraft in service,

[0031] First of all, the location and time of the occurrence are uncertain. All public places are likely to be impacted by crowds at any time, especially at the entrances and exits, corridors and stairs of buildings, etc. The greater the density of the crowd, the more likely there is a stampede happened;

[0032] Second, a stampede may be caused by many reasons, evacuation leading to an emergency or a large number of people crowding at an exit or entrance, or an unexpected violent event, etc. may cause a stampede without obvious reasons;

[0033] Third, control the rush. Once it happens, a large number of people will be on the verge of casualties in a very short period of time (a few seconds to a few minutes), and there will be a lot of chaos on the scene;

[0034] Finally, when a crowd gathers, it will generally cause casualties, which will lead to great danger

Images