Antiaircraft door early warning system and early warning method thereof

The invention discloses an antiaircraft door early warning system and an early warning method thereof. The antiaircraft door early warning system comprises an antiaircraft door body, wherein a cavityis formed in a position, close to the right side, in the antiaircraft door body, a fixing plate is arranged on the right side position of the interior of the cavity, a plurality of lock columns are connected with the right side position on the fixing plate, a through hole is formed in a position, corresponding to the fixing plate, on the right side of the antiaircraft door body, the lock columns pass through the through hole and extend to the outer side of the antiaircraft door body, a slide block is mounted on the left side of the fixing plate in the cavity, a through groove is formed in themiddle position on the slide block, raised teeth are evenly mounted on a part, located at the top position of the interior of the through groove, of the slide block, a gear is arranged in the throughgroove, the gear is meshed