Lg Electronics Inc.

Byoungsuk Choi

Shinhyun Park

Jinseok Hu

Sun Hwa Kim

Heesun Kim

The present disclosure relates to a method for controlling a robot cleaner and, more particularly, to a method for controlling a robot cleaner including a plurality of obstacle detection sensors, the method for controlling the robot cleaner to execute the operations comprising: a first step for approaching a charging device for the robot cleaner according to an IR signal transmitted from the charging device for the robot cleaner including a charging terminal for charging the robot cleaner; a second step for checking whether the shortest distance between the robot cleaner and the charging device for the robot cleaner is less than or equal to a first distance through the plurality of obstacle detection sensors; a third step for checking whether the center lines of the robot cleaner and the charging device for the robot cleaner are aligned through the plurality of obstacle detection sensors, and aligning the center lines of the robot cleaner and the charging device for the robot cleaner; and a fourth step for, when the center lines of the robot cleaner and the charging device for the robot cleaner have been aligned, moving the robot cleaner straight toward the charging device for the robot cleaner.

Method for controlling robot cleaner

A method of controlling a refrigerator includes detecting opening/closing of an ice dispensing duct, through which ice is taken out, and storing an opening time of the ice dispensing duct per time interval. Each time interval is classified as a use time when the opening time of the ice dispensing duct is equal to or greater than a reference time and each time interval is classified as a non-use time when the opening time of the ice dispensing duct is less than the reference time.

Refrigerator and method of controlling the same

A water dispensing apparatus may include a dispenser housing at which a container accommodation part accommodating a container is formed to be recessed; a water nozzle provided at an inner surface of the dispenser housing which defines an upper surface of the container accommodation part; a water level detecting member provided at the inner surface of the dispenser housing close to the water nozzle and configured to detect a level of water filled in the container; a target water level input part provided to input the level of water filled in the container; and a water level indicating unit provided at an inner surface of the dispenser housing which defines a side surface of the container accommodation part to indicate a water level on the container.

Water dispensing apparatus and control method thereof

A refrigerator according to an embodiment of the present invention includes a power input part through which power is input from a UPS device connected to a commercial power source and an auxiliary power source; a voltage sensor configured to sense a voltage of the power input through the power input part; and a control part configured to analyze a voltage signal sensed by the voltage sensor and to determine whether the input power is commercial power or auxiliary power.

Refrigerator

An appliance includes a driver to drive a load, the load requiring AC power or DC power. A power supply receives one of external AC power, back-up AC power and back-up DC power and outputs at least one of AC power or DC power to the load. An operation mode of the home appliance is one of normal operation when receiving external AC power, normal operation when receiving one of back-up AC power and back-up DC power during a power interruption, and a power save mode when receiving one of back-up AC power and back-up DC power during the power interruption. The power supplies a first power level when there is no power interruption, a second power level when there is power interruption and a third power level when there is power interruption and the power save mode is selected, where the second power level is between the first power level and the third power level. The power save mode is automatically selected when the second power level falls below a reference power level.

Home appliance and operating method thereof

A power determining apparatus is disclosed. The power determining apparatus includes a sensor for sensing a current or voltage supplied from a commercial power source or an uninterruptible power supply (UPS), and a controller for analyzing a current or voltage signal sent from the sensor, and determining which one of the commercial power source and the UPS supplies power, based on results of the analysis.

Power determining apparatus and electronic appliance including the same

A home appliance includes a driver to drive a load, a power supply to convert AC power supplied from an outside of the home appliance, and to receive DC power during interruption of electric power, and a controller (1) to perform a control operation to supply first electric power based on the supplied AC power to the load in accordance with a normal operation mode when no interruption of electric power occurs, (2) to perform a control operation to supply second electric power based on the supplied DC power to the load in accordance with the normal operation mode when no interruption of electric power occurs, and (3) to perform a control operation to supply third electric power based on the supplied DC power to the load in accordance with a power saving mode upon the interruption of electric power.

Provided is a refrigerator. The refrigerator may include a power supply unit configured to power the refrigerator using commercial power, a battery coupled to the power supply unit and configured to supply auxiliary power to the refrigerator, a power detection unit coupled to the power supply unit and the battery and configured to detect whether power is being supplied from the power supply unit, a driving unit to provide cold air, and a controller configured to control an operational mode of the driving unit based on the detection at the power detection unit. When the power supply unit is supplying power, the driving unit may be controlled to operate in a normal operation mode, and when the power supply unit is not supplying power, the driving unit may be controlled to operate in a power failure operation mode and to control the power to be supplied from the battery.

A refrigerator includes a compressor, a cold storage medium, a power supply to convert AC power supplied from an outside of the refrigerator, and to receive DC power during interruption of electric power, and a controller to perform a control operation to supply a cooling capacity to an interior of the refrigerator by driving the compressor based on the supplied AC power when no interruption of electric power occurs, and to perform a control operation to supply a cooling capacity to the interior of the refrigerator based on the supplied DC power and the cold storage medium during the interruption of electric power. Accordingly, consumption of electric power during interruption of electric power is reduced.

Refrigerator and operating method thereof

A refrigerator and a method for controlling the same are disclosed. A refrigerator includes a timer for measuring an interval of one hour after power is supplied to the refrigerator, a door opening/closing sensor for sensing opening and closing of a door, a storage unit for storing information whether door is opened in a sector defined as one hour by the timer and at least 7 sector units each having 24 consecutive sectors, and a control unit for predicting a refrigerator use pattern in 24 sectors by overlapping 7 sector units, performing a normal operation mode to maintain a storage compartment at a first desired temperature in a sector in which door opening is predicted, and performing a power-saving operation mode to maintain the storage compartment at a second desired temperature higher than the first desired temperature in a sector in which door opening is not predicted.

Growing community of inventors

Seoul, South Korea

Byoungsuk Choi