A method for detecting the freshness of food in a refrigerator
A detection method and freshness technology, applied in the field of food freshness detection in refrigerators, can solve problems such as inaccuracy
Active Publication Date: 2019-08-02
QINGDAO HAIER SMART TECH R & D CO LTD +1
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Problems solved by technology
[0003] In order to solve the technical problem of inaccurate detection of the freshness of food in the existing refrigerator simply through gas concentration, the present invention proposes a method for detecting the freshness of food in the refrigerator, which can solve the above problems
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Embodiment 1
[0022] Embodiment 1, this embodiment proposes a method for detecting the freshness of food in a refrigerator, including the following steps:
[0023] S1. Establish a database of food type-quality-characteristic gas concentration-fresh grade;
[0024] S2. Put the food on the weighing tray in the refrigerator, enter the food type, and the weighing tray detects the quality of the food and records it;
[0025] S3. According to the type of food in the refrigerator, find out the characteristic gas corresponding to the type of food, and start the corresponding characteristic gas concentration detection sensor to periodically detect the characteristic gas concentration;
[0026] S4. According to the quality of the type of food and the detected characteristic gas concentration, find out from the database the freshness level corresponding to the current quality and characteristic gas concentration of the type of food.
[0027] The food freshness detection method in the refrigerator of ...
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The invention discloses a detection method of freshness of food in a refrigerator. The detection method comprises the following steps: (1) establishing a food type-quality-characteristic gas concentration-freshness degree database; putting the food onto a weighing tray in the refrigerator, inputting food types, detecting the quality of the food with the weighing tray, recording the quality and recording the putting time of the food; (3) searching corresponding characteristic gas according to the food types in the refrigerator and starting a characteristic gas concentration detection sensor for detecting the concentration of the characteristic gas periodically; (4) searching the freshness degree corresponding to the type of food from the database according to the quality of the type of food and the detected concentration of the characteristic gas. According to the detection method of freshness of the food in the refrigerator, the freshness degree of the food can be obtained through combination with the quality of the food and the detected gas concentration; the quality of the food is taken as an important influence factor, so that the freshness degree of the food can be reflected more objectively and really.
Description
technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a method for detecting the freshness of food in a refrigerator. Background technique [0002] Under normal circumstances, people can subjectively judge whether a food is edible or not based on its appearance, color, and change in smell. In the laboratory environment, technologies such as gas chromatography and gas chromatography-mass spectrometry are used to detect the volatilized gas components during food spoilage to identify food freshness, which is expensive, has a long detection cycle, and cannot represent the overall information. Some people propose to analyze whether food is discolored or texture features based on video or images to judge freshness, and some people use odor sensor arrays or odor sensor modules or electronic noses to test the gas composition of food when it rots to judge whether it has deteriorated. However, when using a gas sensor to det...
Claims
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IPC IPC(8): G01N33/02
CPCG01N33/02
Inventor 苏明月
Owner QINGDAO HAIER SMART TECH R & D CO LTD