Patent ID: 8717188
Filing Date: 2014-05-06
Classification: H04L

Abstract:
1. A diagnostic method for a home appliance diagnostic system, the method comprising: receiving a sound signal output from a home appliance via a communicator of a diagnostic server and extracting product information about the home appliance from the sound signal; analyzing via the communicator of the diagnostic server the product information and determining, when an error code is included in the product information, whether the error code corresponds to a door error associated with a door of the home appliance; diagnosing via the communicator of the diagnostic server a fault of the home appliance by determining, when the error code corresponds to the door error, whether the door or a program of the home appliance is out of order using diagnostic data associated with the door among a plurality of diagnostic data included in the product information; and deriving via the communicator of the diagnostic server a diagnosis result by deriving a solution corresponding to a cause of the door error, the cause being obtained according to the fault diagnosis, wherein the diagnosing of the fault of the home appliance includes determining whether the error code has occurred before the home appliance performs a set operation using state information among the plurality of diagnostic data, and wherein the diagnosing of the fault of the home appliance includes determining, when the door error has occurred during the set operation, that the door error is caused by an abnormality of the door, and when the door error has occurred before the set operation, that the door error is caused by a malfunction of the program.