The method of judging fire based on ds evidence theory

Abstract

The invention relates to the field of fire defense, and in particular to a method for judging whether a fire occurs or not by fusing the values of a plurality of sensors. According to a method for judging fire based on a DS evidence theory, fire sensors convey the received information to a data processing centre to process, so as to obtain a judgement about whether a fire occurs or not, the data processing centre determines an identification frame for a security situation according to whether the fire occurs or not, and expressing the identification frame as FORMULA, s1 represents that the fire occurs and s2 represents that the fire does not occur, for the same identification frame, m is an elementary probability assignment function generated by that the corresponding values of the fire sensors support a fire occurrence probability, and the data processing centre carries out fusion calculation on the plurality of fire sensors to obtain an accurate judgement. According to a method for judging fire based on the DS evidence theory, for the evidences obtained by the sensors, the conflict evidences are reasonably and efficiently fused by a simple algorithm to obtain a correct decision result; meanwhile, the time needed by data fusion is greatly reduced.

Description

technical field [0001] The invention relates to the field of fire defense, in particular to a method for judging whether a fire occurs by using a plurality of sensor values ​​for fusion. Background technique [0002] At present, my country's economic construction is developing rapidly, social life is constantly improving, and the whole society is becoming more and more urbanized. The direct impact is that the scale of buildings is continuously expanding, various places are more concentrated, and the population density is gradually increasing, thereby increasing the The severity of the fire hazard. Therefore, the whole society is paying more and more attention to the prevention and rescue of fires. As an important means of early detection, the fire detection and alarm system has an increasing demand and wider application. People have higher and higher requirements for the adaptability and reliability of the fire detection and alarm system. [0003] In order to detect the fir...

AI Technical Summary

Problems solved by technology

However, due to the variability and uncertainty of the fire scene, as well as the variety of fire scene environments, complex personnel activities, and unpredictable behavior (such as smoking, etc.), it will bring certain interference and noise to the above-mentioned features.

It may even provide wrong information, causing data conflicts, making it impossible to effectively integrate and give accurate results