Fire early detection alarm system and method

Abstract

The invention provides a fire early detection and alarm system and method. The method comprises the following steps: performing air sampling by adopting a plurality of active air-breathing smoke detectors to obtain the smoke concentration of a protected part, performing temperature detection by adopting a plurality of temperature detectors to obtain the temperature value of the protected part, andperforming CO detection by adopting a plurality of CO detectors to obtain the CO value of the protected part; adopting an alarm expansion card to receive the smoke concentration, adopting a loop cardfor receiving the temperature value and the CO value, sending the smoke concentration, the temperature value and the CO value to a main CPU, and judging the fire alarm level and displaying a judgmentresult by the main CPU. The electrical smoldering fire response time which is not easily found in a ship closed cabin in the early stage is prolonged, the characteristic quantity CO of smoldering electrical fire combustion products is fused, various detector parameters are fused and judged through a fuzzy neural network and a genetic algorithm, the early fire alarm function is achieved, and meanwhile the false alarm resistance is improved.

Description

technical field [0001] The invention relates to an automatic fire alarm technology of a marine fire-fighting system, in particular to an early fire detection and alarm system and method. Background technique [0002] The front-end detection of fire detection and alarm in my country's marine fire-fighting system mainly uses point-type smoke-temperature composite detectors and differential constant temperature detectors, and core boards such as alarm controller main boards, loop cards, and display cards mainly use imported marine products. Because most of the cabins in the ship are closed, the electromechanical equipment is dense, there are many people, and the internal passages are narrow, it takes a long time to sail on the water, and it is difficult to rescue after a fire. Only using point-type passive smoke and temperature detection methods will cause long detection and alarm response time , the problem of weak anti-false alarm ability has hidden dangers to ensure the fire...

AI Technical Summary

Problems solved by technology

Because most of the cabins in the ship are closed, the electromechanical equipment is dense, there are many people, and the internal passages are narrow, it takes a long time to sail on the water, and it is difficult to rescue after a fire. Only using point-type passive smoke and temperature detection methods will cause long detection and alarm response time , the problem of weak anti-false alarm ability has hidden dangers to ensure the fire safety of ships

At the same time, the use of imported products is not conducive to mastering the underlying communication protocols and core technologies. Once production is stopped or trade disputes occur, there are also great hidden dangers for the supply guarantee of subsequent products.

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