发明名称 |
Method and apparatus for monitoring operation of electrical household appliances |
摘要 |
Discloses is a method and a corresponding apparatus for monitoring operation of electrical household appliances (such as a freezer). The method includes checking the temperature inside the freezer on a periodical basis and comparing with a de-frosting temperature. A critical condition is detected and recorded when the temperature inside the freezer stays over the de-frosting temperature for a period longer than a threshold value. In this way, when a user returns home after several days of absence, he or she is informed whether the food has been de-frozen and then frozen again because of a outage in the power supply network.
|
申请公布号 |
US6940413(B2) |
申请公布日期 |
2005.09.06 |
申请号 |
US20030358453 |
申请日期 |
2003.02.04 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LONGOBARDI ROBERTO |
分类号 |
F25D29/00;(IPC1-7):G08B17/00 |
主分类号 |
F25D29/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|