A fire smoke alarm with storage function

Abstract

The invention provides a fire smoke alarm with storage function, the alarm includes a control unit, a storage unit, a thermal infrared imaging unit, a plurality of smoke sensors, a plurality of linear temperature sensors, a fire alarm unit, the The control unit obtains the thermal imaging image of the scene through the infrared imaging unit, and analyzes the temperature points in the calibration image. When it is judged that there is a fire point, the control unit activates the smoke sensor and the linear temperature sensor, and the measured smoke data and Fit the temperature data to the image data, and analyze and judge whether the temperature value difference between adjacent distances is less than the threshold value, so as to judge whether there is a fire on the scene, and save the image data, temperature and smoke data of the fire scene, which improves the accuracy of fire alarm , and can more intuitively judge and analyze the cause of the fire, as well as the data analysis of the fire.

Description

technical field [0001] The fire smoke alarm of the present invention is suitable for the field of safety alarm, and in particular relates to the field of fire smoke alarm. Background technique [0002] When most fires occur, a large amount of smoke will be released. Smoke particles are one of the important early features of fires, so smoke detection can detect fires earlier. Smoke and fire alarms are now widely used in aircraft cabins, entertainment venues, server rooms, substations and other places. At the same time, there will be a high-temperature combustion area at the fire scene, so different areas will have different temperature points on the scene, but for a relatively closed scene, the fire scene cannot be observed from the outside at the first time, and false alarms often occur And cause the situation that personnel retreat and firefighters run in vain due to false alarm situation. [0003] At present, photoelectric smoke and fire detectors are used in buildings. ...

AI Technical Summary

Problems solved by technology

At the same time, there will be a high-temperature combustion area at the fire scene, so different areas will have different temperature points on the scene, but for a relatively closed scene, the fire scene cannot be observed from the outside at the first time, and false alarms often occur As a result, due to false alarms, personnel retreated and firefighters ran in vain.

[0003] At present, photoelectric smoke and fire detectors are used in buildings. With the serious pollution of PM2.5, as well as dust, fog, moisture, and small oil droplets in the air, particles produced by aircraft transportation such as flower pollen particles, chicks, pigeons, etc. If the concentration of small fluff is too high, the particle concentration in the detection chamber of the photoelectric smoke detector will reach the threshold value, causing the current in the photoelectric tube to increase, thus reaching the fire alarm value prematurely and causing false alarms. Ensure that the alarm is triggered every time a fire occurs, but the accuracy of the alarm is reduced, resulting in huge losses due to false alarms

At the same time, the existing fire alarm will not have any reservations about the fire scene in the early stage of the fire after the alarm. Only experienced people can re-check the fire scene in the later stage to analyze the cause of the fire and the fire point.

The introduction of artificial experience value will bring analysis error

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