Flame detection device based on multiple sensors

Abstract

The invention discloses a flame detection device based on multiple sensors, and belongs to the field of flame detection. In the device, a multi-band infrared detection device detects infrared radiation data of different bands in a target area through a plurality of infrared sensors and sends the infrared radiation data to a first signal processing device in real time so as to judge whether flames exist in the target area or not, and a corresponding first flame detection signal is output; the infrared thermal imaging image acquisition device acquires an infrared thermal imaging image of the target area and sends the infrared thermal imaging image to the second signal processing device in real time so as to analyze whether an area conforming to flame characteristics exists in the infrared thermal imaging image or not, and outputs a corresponding second flame detection signal; the alarm output device can output a final flame detection signal after fusing the two judgment signals according to a preset alarm mode. Multiband flame detection and infrared thermal imaging image type flame detection are combined, and advantage complementation of the two modes is truly achieved.

Description

technical field [0001] The invention belongs to the field of flame detection, in particular to a multi-sensor based flame detection device. Background technique [0002] In recent years, fires in oil and gas fields, gas stations, petrochemical plants, combustible warehouses, coal mines and other industrial places have occurred frequently, causing great losses to the life and property safety of the country and people. Once a fire breaks out in these flammable and explosive places, the intensity of the fire will spread rapidly, if the alarm and fire extinguishing are not timely, it will lead to very serious consequences. [0003] Traditional smoke detectors, temperature detectors, and light detectors use the characteristics of smoke, temperature, and light to identify flames. Due to their simple manufacturing process and low price, they have been widely used in hotels, trains, and residential buildings. Very good application, but these detection methods mostly use the detecti...

AI Technical Summary

Problems solved by technology

However, no matter whether it is a single-band or multi-band infrared pyroelectric flame detector, it cannot solve the problem of moving flame detection, such as a moving vehicle in a tunnel that catches fire due to local friction or failure.

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