Artificial intelligence washing machine and operation method thereof

A method of operating a washing machine comprising a driver configured to perform operations including water supply, drainage, washing, and spin-drying, the method comprising:

• estimating, by at least one processor of the washing machine, based on a previous setting of a previous washing operation, an estimated setting for a current washing operation, the estimated setting including a water supply time, a drainage time, and a spin-drying time;
• obtaining, by the at least one processor, a user input through an input device of the washing machine;
• obtaining, by the at least one processor, an amount of laundry from a weight sensor of the washing machine;
• determining, by the at least one processor, based on the estimated setting, the user input, and the amount of laundry, a washing time for the current washing operation;
• determining, based on a difference between the estimated setting for the current washing operation and the previous setting of the previous washing operation being greater than a predetermined value or ratio, that the washing machine is in an abnormal condition indicating that at least one condition of the washing machine is impairing performance of the washing machine;
• and
• providing, by the at least one processor, the determined washing time and whether the washing machine is in the abnormal condition or not to the user using an output device of the washing machine, the output device configured to provide washing machine status information and washing time information.