Flame detection method

The invention provides a flame detection method, which comprises the following steps of: detecting infrared radiation generated by flame in an environment by using a sensing device to generate a sensing signal, processing the sensing signal by using an amplifying unit and a converting unit, and fina...

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Bibliographic Details
Main Author LI-KE LIQING
Format Patent
LanguageChinese
English
Published 25.05.2021
Subjects
ALARM SYSTEMS
COLORIMETRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
ORDER TELEGRAPHS
PHYSICS
RADIATION PYROMETRY
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
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Summary:The invention provides a flame detection method, which comprises the following steps of: detecting infrared radiation generated by flame in an environment by using a sensing device to generate a sensing signal, processing the sensing signal by using an amplifying unit and a converting unit, and finally judging whether the sensing signal is a flame signal and judging a flame degree value by using a processing unit. Two sensing devices or three sensing devices are provided for detecting the environment at the same time, the difference is that whether the signals are interference signals or human body heat energy signals or not can be judged at the same time, and if the signals are the interference signals or the human body heat energy signals, whether the signals are flame signals or flame degree values do not need to be judged. Whether a fire alarm signal is present is judged after comparing a condition threshold, the accuracy of flame detection can be greatly improved, the false alarm rate can be reduced, and
Bibliography:Application Number: CN201911168657