Abnormal state alarm device and abnormal state detection method for refrigeration house

The invention relates to the technical field of refrigeration, in particular to a refrigeration house abnormal state alarm device and an abnormal state detection method.The detection method comprises the steps that when a door action signal of a refrigeration house is monitored, the actual temperatures of multiple target point positions in the refrigeration house and the set target temperature of the refrigeration house are obtained; judging an abnormal point location; acquiring article information at the abnormal point location; according to the article information at the abnormal point position, a refrigeration mode is selected, and the abnormal point position is refrigerated; after the preset time t1, the temperature of each target point position in the refrigeration house is obtained again; and if the abnormal point position meets the preset control condition, refrigeration is stopped, and if the target point position is still the abnormal point position, a fault alarm is given. Therefore, after the artic