Identifying method and system for fire disaster

An identification method and identification system technology, applied to fire alarms, instruments, alarms, etc., can solve the problems of low sensitivity, high false alarm rate and false negative rate, and false negatives, so as to overcome false alarm rate and anti-interference powerful effect

Inactive Publication Date: 2012-12-26
INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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Problems solved by technology

Therefore, when the fire detector uses simple threshold judgment and trend algorithm to identify fires, if the threshold is set too low, the false alarm rate will be high; if the threshold is set too high, the sensitivity will be low, and the

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  • Identifying method and system for fire disaster
  • Identifying method and system for fire disaster
  • Identifying method and system for fire disaster

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[0019] In order to further illustrate the technical means adopted and the effects achieved by the present invention, the technical solutions of the present invention will be described clearly and completely in conjunction with the accompanying drawings and preferred embodiments.

[0020] See figure 1 , Is a schematic flow diagram of the fire identification method of the present invention. The fire identification method of the present invention includes the following steps:

[0021] S101 establishes a fire identification mathematical model for identifying whether a fire occurs, wherein the input parameters of the fire identification mathematical model include smoke concentration and temperature, and the output parameters include the fire identification result;

[0022] As one of the embodiments, the input parameters of the fire recognition mathematical model further include time information and space information.

[0023] As one of the embodiments, a support vector machine may be used ...

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Abstract

The invention discloses an identifying method for a fire disaster. The identifying method comprises the following steps of: establishing a fire disaster identifying mathematical model for identifying whether the fire disaster occurs or not; collecting smog concentration values and temperature values in a detection area through a plurality of detectors; using the collected smog concentration values and the temperature values as input parameter values of the fire disaster identifying mathematical model, and obtaining a fire disaster identifying result according to output parameter values; and if the fire disaster identifying result is that the fire disaster occurs, outputting an alarming signal. Furthermore, the invention further discloses an identifying system for the fire disaster. The identifying system for the fire disaster provided by the invention is distinguished from a traditional threshold algorithm and a trend algorithm; through the established fire disaster identifying mathematical model, the fire disaster can be identified according to distribution of a smog field and a temperature field in the detection area and a development trend, and therefore, problems of a false alarm rate, too high leakage rate, too low reliability and too low sensitivity can be solved.

Description

technical field [0001] The invention relates to the technical field of fire identification. Background technique [0002] The gas, aerosol, smoke, flame and a large amount of heat produced during the combustion of a fire are collectively referred to as fire parameters. The determination of fire parameters can be used to identify and detect whether a fire has occurred. Due to the influence of lighting conditions, airflow changes, site environment and moving objects, the current fire identification and detection technology has certain disadvantages, such as high false alarm rate and low reliability. The reasons for false alarms in a non-fire environment are complex, and may be damage to hardware, or changes in environmental conditions and false interference. Moreover, since fire detectors (including temperature, smoke, light, etc.) generally process detection signals through simple threshold judgments and trend algorithms, the probability of false positives will increase gre...

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Application Information

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IPC IPC(8): G08B17/00
Inventor 尹焕平
Owner INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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