Abstract: This paper proposes an interference intelligent shielding method to reduce the high false positives rate in infrared thermal imager forest fire monitoring.The method builds the panorama of infrared thermal imager visible range with spherical segmentation model,divides the panorama into a plurality of shielding elements in form of numbers,generates shielding elements into database with address code,selects the shield points by the overlapping corresponding information between client grid box and shielding elements,realizes the shielding of known sources of interference in the forest.The shielding technology can greatly reduce the high false positive rate in infrared thermal imager forest fire monitoring.

Key words: infrared thermal imager, fire monitoring, shielding