Method for detecting whether article with abnormal temperature is placed in refrigerator
US11079174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2017 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting whether an article with an abnormal temperature is placed in a refrigerator. The method includes: controlling a plurality of infrared sensors to collect temperature values after a door body is opened; determining whether an abnormal storage space in which the article with the abnormal temperature is possibly placed exists in a plurality of storage spaces; acquiring a first temperature change value of the abnormal storage space between time points before and after the article with the abnormal temperature is possibly placed in the abnormal storage space and a second temperature change value of the abnormal storage space caused by heat exchange between an external environment and the abnormal storage space between said time points; and determining whether the article with the abnormal temperature is placed in the abnormal storage space according to the first temperature change value and the second temperature change value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.