Building fire situation assessment and personnel evacuating indication method and system

Abstract

The invention discloses a building fire situation assessment and personnel evacuating indication method and system. The building fire situation assessment and personnel evacuating indication method includes steps: monitoring fire information timely and calculating fire source position information, fire source intensity information and fire development situation information according to the fire information; estimating personnel position information in all areas in a building and personnel density distribution in all the areas; and calculating a best evacuating direction and a best evacuating path according to the fire source position information, the fire source intensity information, the fire development situation information, the personnel position information and the personnel density distribution information in all the areas in the building and the building structure information. By adopting the building fire situation assessment and personnel evacuating indication method and system, a practicable solution is provided for personnel evacuating based on disaster development situation in the building by sufficiently using the modern techniques such as sensing, communication, calculating and decision making, and decision making and evacuating efficiencies are improved.

Description

technical field [0001] The invention relates to the technical field of building fire monitoring, in particular to a method and system for building fire situation assessment and personnel evacuation indication. Background technique [0002] In current buildings, especially large buildings with complex structures, a fire safety evacuation system is essential, so that when a fire occurs, it can guide the crowd to evacuate and reduce casualties. The traditional fire safety evacuation system consists of static evacuation instructions installed on the passage and pointing to the safety exit. This fire evacuation system [0003] There are many disadvantages in the system, which need to be improved urgently: [0004] First, the traditional fire evacuation system is a static system, which cannot change with the state of disaster development, so that it is possible to guide people to dangerous areas. For example, during the development of a fire, some evacuation paths are blocked by...

AI Technical Summary

Problems solved by technology

The application date is 2007-06-19, and the publication number is CN101079178A's invention patent "a fire warning control system", which tries to use the alarm signal of the fire alarm system to dynamically adjust the evacuation plan, but in this invention only the fire alarm system is used. The limited information on the location of the fire alarm at the initial stage of the fire did not carry out effective monitoring, prediction and evaluation of the whole process of the fire, and the evacuation plan given by it may no longer be applicable with the development of the disaster.

[0005]Second, in the traditional fire safety evacuation pump system, the impact of the congestion of people on evacuation cannot be effectively considered, which may lead to congestion in local areas and reduce the evacuation efficiency

Due to the lack of an integration method between the personnel location monitoring system and the evacuation system, the fire safety system cannot consider the impact of the real-time distribution of personnel density on the evacuation during the evacuation process, and can only rely on the disaster monitoring information provided by the fire protection system.

The application date is 2005-09-15 and the publication number is CN1783154A for the invention patent "Intelligent Evacuation Indication System"; the application date is 2006-02-1 and the publication number is CN10111977IA for the invention patent "Evacuation System Including Escape Guide Lights"; These inventions try to connect the fire alarm system with some dynamic evacuation indicating hardware, so as to give a dynamic evacuation direction, but in these systems, the influence of personnel position and personnel density on evacuation efficiency is not considered

[0006]Third, in the traditional fire safety evacuation system, there is a lack of an effective method for effectively integrating fire sensor monitoring and personnel monitoring systems, and it cannot effectively provide real-time optimized solutions based on monitoring information. evacuation plan

However, the expert system used relies on relatively static expert experience, and its input is only limited early fire alarm information, which is not enough to modify the evacuation plan in the process of dynamically changing fire development, and to carry out dynamic emergency situations. respond effectively

[0007]Fourth, in a complex building environment, the traditional fire protection system lacks the ability to provide evacuees with information such as the overall building structure, fire development situation, and the evacuation route that should be selected. Effective means to make evacuation more blind

[0008]In the traditional evacuation system, it can only provide local information such as the evacuation direction where the evacuation personnel should take, but the overall building structure information is crucial for evacuation decisions , The overall fire development situation information inside the building lacks an effective way to transmit, which greatly affects the decision-making efficiency of evacuation

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