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Fire early warning method for marine engine room based on multi-source fusion

A fire warning and engine room technology, applied in fire alarms, alarms, marine signal devices, etc., can solve the problem of high fire false alarm rate, and achieve the effect of high early warning accuracy and low false alarm rate.

Inactive Publication Date: 2012-11-28
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ship engine room fire alarm system mainly relies on temperature and smoke sensors, the fire false alarm rate is high, and has great limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Step (1) Obtain the temperature of each temperature monitoring point in the engine room by the temperature sensor array , ; Obtain the smoke detection information on each smoke monitoring point in the cabin by the smoke sensor array , ; Obtain the video image sequence on each video monitoring point in the cabin by the camera array , . in , , are the numbers of temperature sensors, smoke sensors and cameras in the cabin, respectively.

[0035] by webcam The covered cabin area is the fire monitoring object, set The resolution of the video image captured by each camera is , which corresponds to the two-dimensional plane area of ​​the cabin covered by . Assume at different times The image sequence for ,in ( , ) is the image pixel position, Based on the RGB color model. For the obtained data such as temperature, smoke and images, perform the following operations:

[0036] Step (2) extracts the included region obtained in step (1) Al...

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Abstract

The invention relates to a method for fire early warning in a marine engine room. The conventional fire alarming system for the marine engine room mainly depends on temperature and smoke sensors, thereby having higher false alarm rate of the fire and greater limitations. In the method provided by the invention, while the fire is analyzed through a video, flame color information and flame motion information are fused, and the flame color information and the flame motion information are further fused with temperature information and smoke information in the marine engine room, and the characteristics of area of the flame are thoroughly considered, consequently, real-time and accurate fire detection is implemented under the condition of reduction of the false alarm rate of the fire.

Description

technical field [0001] The invention belongs to the technical field of fire early warning, and in particular relates to a fire early warning method in a ship engine room. Background technique [0002] As a means of water transportation, ships have the following particularities due to their special functions and structural characteristics: (1) Ships are relatively independent mobile places, and it is difficult to obtain rescue and rescue after a fire occurs; (2) Ships The watertight characteristics of the fire caused the hot smoke generated by the fire to spread quickly in the cabin, which accelerated the development of the fire and also caused a great threat to the safety of personnel; (3) Due to the limitation of its own functions, the internal space of the ship is small and the equipment is concentrated in the environment Complicated, it is difficult to evacuate personnel and fire fighting after a fire occurs; (4) There are many electrical equipment in the cabin, as well a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/00B63B45/00
Inventor 何志伟高明煜黄继业曾毓吴占雄
Owner HANGZHOU DIANZI UNIV
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