An indoor crowd evacuation method and system

A crowd and pedestrian technology, applied in the field of indoor crowd evacuation methods and systems, can solve the problems of long time, crowding, and low crowd evacuation efficiency.

Active Publication Date: 2019-06-28
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Purpose of the invention: In order to overcome the deficiencies of the prior art, the present invention provides an indoor crowd evacuation method, which can solve the pr

Method used

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  • An indoor crowd evacuation method and system
  • An indoor crowd evacuation method and system
  • An indoor crowd evacuation method and system

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Embodiment 1

[0074] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0075] The problem solved by the invention is how to evacuate the crowd in a timely and friendly manner when a disaster occurs in a large venue, and provide an evacuation route for each affected mass, so as to improve the evacuation efficiency and save people's lives as much as possible. The indoor crowd evacuation method under the disaster scene proposed by the present invention selects cellular automata as the theoretical basis, and considers the attractiveness of the exit to pedestrians, the repulsive force between pedestrians, between pedestrians and obstacles, friction, and the distance between pedestrians. In addition to these factors, two factors of pedestrian los...

Embodiment 2

[0149] On the other hand, the present invention also provides an indoor crowd evacuation system, comprising:

[0150] The scene model initialization module is used to first construct a cell space composed of several grids;

[0151] Cellular automata is preferred as the theoretical basis, and square grids of the same size are used to divide the plane space of building venues. Each grid is regarded as a cell, and the size of each cell space and the individual cells are determined according to the size of the venue. All the cells constitute the cell space; the basis for selecting the size of the square grid is: according to the optimal space size that each person can have in a dense crowd, set the grid size to 0.5m×0.5m , that is, the size of each cell in the cell space is 0.5m×0.5m.

[0152] Then, establish a coordinate system, determine the coordinate position of each cell in the cell space, and determine the state set of each cell, thereby initializing the state of the exit c...

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Abstract

The invention discloses an indoor crowd evacuation method which comprises the steps of scene model initialization: dividing a plane graph according to a grid rule to generate a cellular space according to the plane graph of a building venue where pedestrians are located, and initializing the cellular space; a pedestrian evacuation step: on the basis of determining a cellular state updating rule, enabling the cellular occupied by each pedestrian to perform state updating according to the rule in a discrete time step, and recording the position of the pedestrian in each time step until all the pedestrians escape from the venue; path planning: providing path planning information for each pedestrian according to the operation result of the model and the identity of the pedestrian, and guidingthe pedestrian to escape from the venue; according to the method, various influence factors are considered, so that when a disaster occurs, the crowd evacuation efficiency can be improved through themethod, crowd congestion is avoided, meanwhile, a path plan can be provided for each person through the method, each person is guided to leave a building or a venue, and collision with other people isavoided.

Description

technical field [0001] The invention relates to the technical field of crowd evacuation simulation, in particular to an indoor crowd evacuation method and system. Background technique [0002] With the rapid progress of modern society and rapid economic development, the phenomenon of urbanization is becoming more and more serious, and large buildings, such as cinemas and large shopping malls, are becoming more and more dense. While this kind of dense large-scale building has brought a lot of convenience to people's life, it has also brought a lot of potential safety hazards to people. [0003] Now people spend 80-90% of their time indoors. In recent years, various indoor public safety issues and emergencies such as fires and earthquakes have emerged one after another. In 2018, there were 119 earthquakes of magnitude 6.0 or above in the world. In terms of fire, hundreds of thousands of fires have been reported by fire departments across the country. The suddenness of these d...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q10/04
Inventor 徐小龙刘欣欣
Owner NANJING UNIV OF POSTS & TELECOMM
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