Title:
冷蔵庫
Document Type and Number:
Japanese Patent JP5348345
Kind Code:
B2
Abstract:
A refrigerator includes a storage room that is divided into sections by a heat insulation wall and a heat insulation door, and stores storage items, a light source that is disposed inside the storage room, a light sensor (21) that detects the illumination light illuminated from the light source, and a calculation control unit (1) that performs a calculation process based on a detection result of the light sensor (21). The calculation control unit(1) includes an attenuation rate calculation unit (81) that calculates an attenuation rate from a reference storage room illuminance in a state that the storage items are stored, based on the reference storage room illuminance in a state that the storage items are not stored in the storage room and a detected illuminance by the light sensor (21), and a storage state estimation unit (82) that estimates a storage amount of the storage items, based on a calculation result of the attenuation rate calculation unit (81).
Inventors:
Toyoshi Uesako
Takayoshi Mori
Kenichi Kakita
Masaji Nakagawa
Takayoshi Mori
Kenichi Kakita
Masaji Nakagawa
Application Number:
JP2013101810A
Publication Date:
November 20, 2013
Filing Date:
May 14, 2013
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
F25D23/00; F25D11/00; F25D27/00; F25D29/00
Domestic Patent References:
| JP8303922A | ||||
| JP2010151367A | ||||
| JP2007046833A | ||||
| JP2009115371A | ||||
| JP11083306A | ||||
| JP2011043263A |
Attorney, Agent or Firm:
Hiroki Naito
Kentaro Fujii
Ikuro Terauchi
Kentaro Fujii
Ikuro Terauchi