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Design and implementation of recognition algorithm based on four-band infrared flame detector

Based on four-band Infrared flame detector of 4.26μm· 2.2µm, 3.9µm and 4.8µm, the flame characteristic information is extracted and analyzed, and a scheme for realizing the specific identification algorithm of four-band infrared flame detector is proposed. By analyzing and comparing the mathematical relations of the spectral characteristics of the four bands, the identification of the four-band infrared flame is realized by the combination of the threshold method, the mathematical correlation analysis method and the signal average power method. The experimental results show that the recognition algorithm is feasible and reliable, and the accuracy of the infrared flame detector and the ability of adapting to the environment can be improved effectively, and the aim of the high reliability and long-distance detection is realized.