Indoor environment personnel location method and system

Abstract

The invention relates to an indoor environment personnel location method and system. The method comprises the first step of previously modeling to generate an indoor structure picture of a building according to estimation information of the building, and calculating out a personnel moving path according to walking course, walking displacement and walking time of personnel in a moving process; the second step of extracting a data change characteristic value of collected data, analyzing a data change characteristic, judging whether the moving characteristic of current personnel meets a geographical tag attribute, matching a position of the current personnel to a corresponding geographical tag position of the indoor structure picture if the moving characteristic of the current personnel meets the geographical tag attribute and an existing geographical tag can be matched, and correcting the calculated-out path to obtain personnel location information. The method has the advantages of complex application environments, high location accuracy, good system stability and suitability for occasions of fire control and extinguishment, task execution of special policemen, anti-terrorist drill or the like.

Description

technical field [0001] The present invention relates to the technical field of positioning, in particular to a method and system for locating personnel in an indoor environment. Background technique [0002] At present, my country is in a period of economic transition and social transformation. With the acceleration of urbanization, various disaster-causing factors have also increased significantly. Severe fires and other disasters occur from time to time, and the scale of disasters continues to expand. Facing the complicated situation of fire fighting and rescue, a problem that cannot be ignored is that the proportion of casualties among firefighters in our country is gradually increasing. According to statistics, during the 10 years from 1997 to 2006, 131 firefighters across the country died and 1,610 were disabled. In just three years from 2007 to 2009, 153 firefighters across the country died and more than 500 were disabled. On average, nearly 30 firefighters die every...

AI Technical Summary

Problems solved by technology

[0004] Obtaining the situation of the fire scene only through observation, not knowing the location and movement of people in the building, not knowing the structure of the building and the fire situation, not knowing the location of the firefighters and the surrounding environment of the firefighters, so the commander lacks a comprehensive understanding of the situation on the scene. It is impossible to conduct detailed command on fire fighting, nor can it effectively organize follow-up rescue work, so it can only "do it in a hurry" outside

[0005] In addition, the questioning of insiders is highly subjective, and there are great potential safety hazards for firefighters to conduct in-depth investigations in person.

Therefore, these blind and inefficient fire rescue work is an important reason for the casualties of firefighters.

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