Method for detecting whether temperature-abnormal article is put into refrigerator or not

Abstract

The invention provides a method for detecting whether a temperature-abnormal article is put into a refrigerator or not, wherein the refrigerator comprises a box body, a door body and a plurality of infrared sensors; the inside of the box body is divided into a plurality of storage spaces; the door body is arranged at the front part of the box body; the infrared sensors are used for respectively sensing the temperature of the plurality of storage spaces. The method comprises the following steps that when the door body is opened, the plurality of infrared sensors are controlled to collect the temperature value; whether the abnormal storage space in which the temperature-abnormal article is possibly put exists in the plurality of storage spaces or not can be judged; if the condition that the abnormal storage space exists is judged, the first temperature change value of the abnormal storage space before and after the possible placement of the temperature-abnormal article and the second temperature change caused by heat exchange between external environment and the refrigerator before and after the possible placement of the temperature-abnormal article are obtained; whether the temperature-abnormal article is put into the abnormal storage space or not is judged according to the first temperature change value and the second temperature change value. The method provided by the invention has the advantage that whether too hot food is put into one storage space or not can be accurately judged.

Description

technical field [0001] The invention relates to refrigeration and freezing equipment, in particular to a method for detecting whether items with abnormal temperature are placed in the refrigerator. Background technique [0002] Traditional refrigerators usually use a temperature sensor arranged inside the storage compartment to sense the temperature around the location where it is arranged, and use the temperature as a basis for refrigeration control. When using this control method to control the refrigerator, when the temperature measured by the temperature sensor is higher than the preset value, the refrigerator starts cooling. However, when the storage compartment is divided into a plurality of relatively independent storage spaces by the shelf partition, if the user puts hot food with a higher temperature into a certain storage space of the refrigerator, on the one hand, the temperature of the hot food Putting it in will affect the temperature of the storage space where...

AI Technical Summary

Problems solved by technology

However, when the storage compartment is divided into a plurality of relatively independent storage spaces by the shelf partition, if the user puts hot food with a higher temperature into a certain storage space of the refrigerator, on the one hand, the temperature of the hot food Putting it in will affect the temperature of the storage space where it is located, so that various bacteria that originally existed in the food inside the refrigerator can grow faster, which is not conducive to the healthy and safe preservation of food; on the other hand, if the storage room Indiscriminate refrigeration as a whole will cause waste of electric energy and slow cooling of the storage space where hot food is placed

[0003] In addition, when the refrigerator door is opened, putting in hot food with a higher temperature will cause the temperature of the storage space to change, and the storage space without hot food will also be heated due to natural convection between the external environment and the storage compartment. Exchange causes temperature changes, but there is no proper discrimination method to distinguish the above two situations in the prior art, resulting in inaccurate refrigeration control of refrigerators in the prior art

However, to increase the hardware cost of the refrigerator too much, and to provide a discrimination method that can more accurately distinguish the above two situations is a technical problem that has been eager to be solved in the refrigerator technology field but has not been solved all the time.

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