Personnel characteristic-based fire evacuation path navigation method

A technology for route navigation and personnel, applied in the fields of lifesaving and fire protection, it can solve the problems such as the inability of evacuated personnel to effectively execute evacuation instructions and the inability to escape successfully, so as to avoid unbalanced use, improve escape rate, and improve utilization.

Active Publication Date: 2014-05-07
HUAZHONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

First, these methods often consider the static evacuation environment, ignoring the impact of fire spread on escape
Second, these methods indiscriminately give the same escape path to all persons to be evacuated at the same location
The above disadvantages make it possible for the people to be evacuated to be unable to effectively implement the evacuation instructions and fail to escape successfully before the fire intensifies

Method used

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  • Personnel characteristic-based fire evacuation path navigation method

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] The implementation of the navigation method of the present invention is based on the following hardware environment.

[0018] 1. Each person carries an RFID tag, and a unique person ID is stored inside. Using this as an index, the feature information about the person can be obtained from the server.

[0019] 2. RFID readers and antennas are installed in important positions in the building.

[0020] Whether personnel can escape from the fire smoothly, two times must be considered, namely the available safe evacuation time (ASET, Available Safety Egress Time) and the required safe evacuation...

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Abstract

The invention discloses a personnel characteristic-based fire evacuation path navigation method which comprises the following steps: 1, obtaining fire behavior information through a fire detector, calculating an effective time range capable of being used for escape of each path; 2, reading personnel label information by using an RFID (Radio Frequency Identification) reader-writer, locating personal position information, performing personnel evacuating speed classifying according to the obtained personnel label information and the obtained personnel position information; 3, for personnel with different speeds, calculating evacuating path information by using a shortest path precedence algorithm, wherein the evacuating path information comprises a shortest path length value from an initial position to an outlet node D and all nodes on the path; and 4, sending the shortest path length value and all nodes on the path to personnel to be evacuated. According to the personnel characteristic-based fire evacuation path navigation method, the utilization rate of the path can be effectively increased.

Description

technical field [0001] The invention relates to life-saving and fire-fighting technology, in particular to a fire evacuation path navigation method based on personnel characteristics. technical background [0002] For a long time, fire has always been one of the main disasters that threaten the safety of human life and property. When a fire occurs, it is necessary to quickly and effectively evacuate the crowd in the building to reduce casualties caused by the fire. Compared with the past, today's buildings are more complex in structure and larger in scale, and the passages in the buildings are often criss-crossed and numerous in number. In this complex environment, how to choose an optimized escape route for the people to be evacuated becomes the key to the success of the evacuation. [0003] At present, many evacuation route selection methods have been proposed and put into use. These methods are based on relevant theories of optimization or graph theory, and can find op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 袁巍黄贵江尤新革刘璐王殊刘强
Owner HUAZHONG UNIV OF SCI & TECH
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