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AssigneeImatran Voima Oy
InventorsJuhani Hirvonen, Pekka Kohola, Marja Apajalahti, Mikko Hoynanmaa, Olli Otava, Kristian Moring, Timo Hanioja
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An image processing method for flame monitoring is based on the formation of a video signal characteristic to the combustion process. In accordance with the method, the flame is monitored by each fire-box camera essentially from its side, whereby the video signal is adapted to cover at least an entire ignition area of a single burner, the video signal is continually processed to define the average intensity level corresponding to the steepest intensity gradients, and for each averaged level, the corresponding spatial or time coordinates of the continuous video signal, which define the location of the ignition area, are determined. The method extracts from the ignition and combustion process abundant information helpful in the control of combustion.
An image analysis method for flame monitoring, particularly a method for the determination of ignition area location and combustion in pulverized-fuel combustion, in which method at least one fire-box camera is used for generation of a continuous video signal illustrative of the combustion, from which signal an instantaneous image of the flame being monitored can be formed on a display device, the method comprising the steps of:
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