Method for detecting indoor food freshness in refrigerator storage room

Abstract

The invention provides a method for detecting freshness of food in a storage chamber of a refrigerator. The method includes the steps that the odor intensity of odor in the storage chamber of the refrigerator is detected according to a preset time interval, and the odor intensity is used for representing the influence degree of the odor in the storage chamber on the olfactory sensation; the change rate of the odor intensity is calculated; whether the change rate is larger than or equal to a first preset value is judged; and when the change rate is larger than or equal to the first preset value, a signal indicating that food in the storage chamber rots is output. The freshness of food can be judged according to the change rate of the odor intensity used for representing the influence degree of the odor in the storage chamber on the olfactory sensation, a user can accurately and timely obtain the freshness of food in the storage chamber of the refrigerator and timely obtain food rotting information, and therefore the user can timely clean the refrigerator and effectively monitor the freshness of food in the refrigerator.

Description

technical field [0001] The invention relates to the technical field of refrigerator storage, in particular to a method for detecting the freshness of food in a refrigerator storage room. Background technique [0002] Refrigerator is a kind of refrigeration equipment that keeps a constant low temperature, and it is also a civilian product that keeps food or other foods in a constant low temperature and cold state. With the development of society, people are increasingly inseparable from refrigerators. However, sometimes when users open the refrigerator, they will smell a strange smell, which smells disgusting. The main reasons for these peculiar smells may be as follows: 1) Because some food in the refrigerator has been stored for a long time or some food residues will emit peculiar smell, this smell will adhere to the inner container of the refrigerator or the shelf and fruit box; 2) Some foods are mixed, especially some foods that are prone to odors are not packaged, and t...

AI Technical Summary

Problems solved by technology

However, sometimes when users open the refrigerator, they will smell a strange smell, which smells disgusting

The main reasons for these peculiar smells may be as follows: 1) Because some food in the refrigerator has been stored for a long time or some food residues will emit peculiar smell, this smell will adhere to the inner container of the refrigerator or the shelf and fruit box; 2) Some foods are mixed, especially some foods that are prone to odors are not packaged, and they are prone to odors after being stored for a period of time; 3) Some foods will be attached to the inner liner during the use of the refrigerator. If the refrigerator is stopped but not cleaned Or if the door is not opened, peculiar smell will be produced after a long time; 4) Since the food in the refrigerator has deteriorated and the user cannot know, the peculiar smell will be strung into the stored food during use, resulting in the phenomenon of cross-smelling

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