Abstract:
A refrigerator according to one embodiment of the present invention includes: a memory for storing information on food stored in a storeroom; a weight detecting unit disposed in the storeroom for detecting the weight of the food in order to determine whether food is received or withdrawn; a controller for creating a request for confirmation information on the received or withdrawn food when the food is determined to have been received or withdrawn; a speech output unit for outputting the request created by the controller as speech; and a speech input unit for receiving the response to the output request as speech, wherein the controller analyzes the response and updates information on the food stored in the storeroom.