Tall building fire light-temperature composite intelligent monitoring prediction device

Abstract

The invention discloses a fire light-temperature composite intelligent monitoring warning device for highrise building, comprising a fire signal detector, a signal transmission device, a central processing unit, a data manager, a fire alarming controller and a warning device, wherein, one end of the data manager is connected with the fire alarming controller through a first analog-to-digital converter (ADC), while the other end is connected with the central processing unit through the signal transmission device; the central processing unit is also connected with the fire alarming controller which is connected with the warning device through a second digital-to-analog converter (DAC); the fire signal detector comprises a fire temperature detector and a fire luminosity detector which are respectively connected with the first ADC. The invention which adopts light-temperature composite fire detecting technology combines the characters of accurate measurement of heat detector and quick response of photodetector; moreover, the invention can solve the problems such as failure alarm and false alarm of a fire to a large extent and also can improve the response sensitivity of the detector.

Description

technical field [0001] The invention relates to a fire monitoring, early warning and forecasting device, in particular to an intelligent monitoring, early warning and forecasting device for high-rise building fires with light-temperature composite detection and self-learning functions. Background technique [0002] The occurrence of fire not only brings harm to human life, but also brings losses to social property. In recent years, with the improvement of the level of economic and social development, the increase of social wealth density, and the continuous enrichment of fire types, the losses caused by fires have continued to increase. In the current environment of highly developed national economy, there are increasingly higher requirements on how to improve the sensitivity and reliability of fire detectors, and improve the timeliness and accuracy of fire forecasting. Fires in high-rise buildings have the characteristics of rapid fire spread, difficult evacuation of perso...

AI Technical Summary

Problems solved by technology

Because of the extremely fast propagation speed of electromagnetic radiation, photosensitive detectors can respond in time to rapid fires (such as flammable and combustible liquid fires), and are ideal detectors for early warning of such fires. In practice, CCD cameras are generally used. However, the CCD camera cannot distinguish the difference between a moving high-temperature object and a fire, which may cause a missed alarm

[0004] In the current high-rise building fire monitoring, early warning and forecasting devices, a single smoke sensor, temperature-sensitive optical cable or CCD (computer-controlled display camera) is usually used. The means are single and the reliability is poor. For example, the smoke sensor cannot detect the flame produced by the burning of alcohol, the temperature sensor is difficult to detect the smoldering fire, and the CCD camera cannot distinguish the difference between the moving high-temperature object and the fire, which may cause a missed alarm; at the same time, the current Some light-sensitive, smoke-sensitive, and temperature-sensitive detection technologies can only detect flames or fires in certain detection areas, but cannot determine the exact location of the fire. In addition, due to environmental interference, missed detections and false detections often occur. reported situation

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