A washing machine includes: a tub; a drum of metal material configured to be rotated in the tub; an induction heater configured to be fixed to the tub in a state of being separated from the drum, and to heat the drum; a first temperature sensor configured to have a tube of metal material heated by the induction heater and a thermistor disposed in the tube, at least a part of the tube being exposed between the tub and the drum; a second temperature sensor configured to be disposed in a position further away than the first temperature sensor from the induction heater in a circumferential direction, and detect a temperature of air between the tub and the drum; and a controller configured to control the induction heater based on a first detection value of the first temperature sensor and a second detection value of the second temperature sensor.

A washing machine includes: a tub; a drum of metal material configured to be rotated in the tub; an induction heater configured to be fixed to the tub in a state of being separated from the drum, and to heat the drum; a first temperature sensor configured to have a tube of metal material heated by the induction heater and a thermistor disposed in the tube, at least a part of the tube being exposed between the tub and the drum; a second temperature sensor configured to be disposed in a position further away than the first temperature sensor from the induction heater in a circumferential direction, and detect a temperature of air between the tub and the drum; and a controller configured to control the induction heater based on a first detection value of the first temperature sensor and a second detection value of the second temperature sensor.

A washing machine includes: a washing tub; a speech reception unit configured to receive speech information; a communication unit activated by starting words input by a user, so as to communicate with a server for providing washing- related information; a touch screen for outputting graphic objects corresponding to washing- related functions which can be performed by the washing tub; and a control unit for controlling the touch screen such that when the user's proximity is sensed, a first graphic object is output to the touch screen, and in response to the input starting words, the first graphic object is switched to a second graphic object indicating that a speech recognition function is activated. In addition, in response to reception of laundry-related speech information, the control unit analyzes the received speech information and outputs, on the basis of the analysis result, feedback sound associated with washing of the corresponding laundry.

Disclosed is a method of controlling a washing machine. The method includes receiving setting information for washing mode, sensing an amount of laundry put into the washing machine, transmitting the setting information for washing mode and information on the amount of laundry to a dryer, and transmitting preheating request information to the dryer. A laundry treatment apparatus includes devices that may operate in conjunction with one another, thereby increasing operation efficiency and usability.

A control method for a laundry treating apparatus comprises a washing machine power supply step of supplying a power to a washing machine interface provided to receive a control command; a course execution step of executing a washing course by the washing machine if the washing course is input to the washing machine interface; a dryer power supply step of supplying the power to the dryer if a preheating request signal is input through the washing machine interface; and a preheating step of including a supply stroke of supplying the air to the drying drum and a heating stroke of heating the air supplied to the drying drum.

A control method for a laundry treating apparatus includes supplying water to a tub by controlling a water supply unit of a washing machine, supplying the heated air to a drying drum through a heat exchanger of a dryer, transmitting a control signal requesting reduction of a current amount per hour supplied to the heat exchanger to the dryer by the washing machine, lowering the current amount if a temperature of the air discharged from the drying drum or a temperature of a refrigerant heat-exchanged with the air by the heat exchanger is higher than a preset first reference temperature, heating the water stored in the tub by operating the heating unit after starting to lower the current amount, and separating particles from laundry by rotating a washing drum provided inside the tub.

A control method for a laundry treating apparatus comprises a first communication step of notifying a dryer of a washing course by a washing machine if the washing course is input through a washing machine interface provided to receive a control command; a course selection step of selecting any one of a plurality of drying courses set to the dryer by the dryer; and a predicted time transmission step of transmitting a sum of a washing time set to the washing course and a drying time set to the drying course to a terminal provided to perform communication with at least any one of the washing machine and the dryer through wire or wireless communication.

A laundry treating apparatus having a tub, a drum rotatably mounted inside the tub, at least one electrical powered element mounted in the drum, a wireless power transmitter unit and a wireless power receiver unit. The wireless power receiver unit supplies power to the electrical powered element.

A washing and drying machine includes: a washing drum for accommodating the washings and rotating under a driving force of a motor; an air supply portion for supplying air into the washing drum; a heating portion configured to heat the air to be supplied into the washing drum when turned on and stop heating when turned off; and a control portion for controlling the motor, the air supply portion and the heating portion to execute a washing and drying operation. A drying procedure in the washing and drying operation includes main drying treatment repeated for multiple times. During each time of the main drying treatment, the control portion is configured to keep the heating portion being on within a first period, and keep the heating portion being off within a second period different from the first period, and the second period is longer than the first period.

A washing and drying machine includes: a washing drum for accommodating the washings and rotating under a driving force of a motor; an air supply portion for supplying air into the washing drum; a heating portion configured to heat the air to be supplied into the washing drum when turned on and stop heating when turned off; and a control portion for controlling the motor, the air supply portion and the heating portion to execute a washing and drying operation. A drying procedure in the washing and drying operation includes main drying treatment repeated for multiple times. During each time of the main drying treatment, the control portion is configured to keep the heating portion being on within a first period, and keep the heating portion being off within a second period different from the first period, and the second period is longer than the first period.