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A method of intelligent fire detection based on wsn

A kind of fire detection and intelligent technology, which is applied in the direction of electric fire alarms, fire alarms and instruments that rely on the effect of smoke/gas, and can solve the problems of limited battery capacity, computing power, storage space and communication bandwidth.

Active Publication Date: 2019-09-03
NANJING UNIV OF POSTS & TELECOMM
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  • Description
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AI Technical Summary

Problems solved by technology

However, WSN is a resource-constrained network with limited battery capacity, computing power, storage space, and communication bandwidth. For large-scale WSN applications such as fire prevention, there is a large amount of invalid redundant data in the network.

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  • A method of intelligent fire detection based on wsn
  • A method of intelligent fire detection based on wsn
  • A method of intelligent fire detection based on wsn

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Embodiment Construction

[0059] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail, and concrete implementation is as follows:

[0060] figure 1 The system level model of the intelligent fire detection algorithm proposed by the present invention mainly contains the following steps:

[0061] (1) The WSN acquisition and monitoring composed of three sensors includes changes in CO content, temperature and smoke concentration to obtain fire detection parameters and provide data sources for subsequent fire detection algorithms;

[0062] (2) Perform homogeneous data-level processing on the raw data of the three sensors collected by WSN; then perform normalized data-level processing on the homogenized data twice to prepare for the effective fusion of subsequent feature layers ;

[0063] (3) Perform feature-level processing on the signal after data-level preprocessing, that is, artificial neural network intelligent fusion, and finally obtain the r...

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Abstract

The invention discloses an intelligent fire detection method based on a WSN. The method includes the following analyzes the application features of a wireless sensor network and analyzing the non-structural features of how a fire happens, and in combination with a general function model of the data fusion technology, and establishes a multi-layer and graded fire detection model. The model adopts the WSN which is composed of 3types of sensors. Firstly, the acquired original data undergoes data level processing so as to standardize the data, and the data undergoes special level processing so asto remove redundant information from a network and increase the precision in identifying a fire and the robustness of the WSN. According to the invention, the method herein sufficiently takes the features of the wireless sensor network into consideration, makes sure that a fire early warning is sent in an in-time and accurate manner, makes systems more suitable for the environment, makes the decision-making of a fire fighting monitoring system more scientific, and is very significant and practical for the early warnings and forecasting of fire hazards.

Description

technical field [0001] The invention relates to an intelligent fire detection algorithm based on a wireless sensor network and information fusion technology, and belongs to the technical field of data fusion in the wireless sensor network. Background technique [0002] Among the many disasters, fire has become one of the most frequent, destructive and influential disasters in our country. Stability has also had an adverse effect. With the rapid development of economy and urban construction, the number of high-rise buildings, underground buildings and large-scale comprehensive buildings in cities is increasing day by day, and the fire hazards are also greatly increased. The number of fires and the losses caused by them are increasing year by year. How to quickly and accurately detect the fire hazard in the early stage is undoubtedly an urgent problem to be solved. [0003] For today's fire detection system, people not only hope that it can detect the occurrence of fire as s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/06G08B17/10G08B29/18
Inventor 张登银钱媛媛
Owner NANJING UNIV OF POSTS & TELECOMM
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