A household dishwasher includes a washing tub, a main body, a door portion configured to open and close an upper surface of the washing tub, a first washing water spray nozzle configured to spray washing water supplied from a door portion water supply pipe to an inside of the washing tub, a second washing water spray nozzle configured to spray the washing water to the inside of the washing tub, a steam generator configured to supply steam to the inside of the washing tub, an ultrasonic vibration part configured to apply ultrasonic vibration to the washing water inside the washing tub such that an ultrasonic washing is performed, and a controller configured to receive a washing command signal of a user and control internal components of the household dishwasher.

A system includes a dishwasher having a receptacle for items to be washed, an image capturing facility configured to capture an image of the receptacle of the dishwasher for items to be washed, and an image processing facility configured to determine in dependence upon the captured image a map of an arrangement of the items to be washed. The map includes a division of the receptacle into a number of regions, with each region having a predetermined arrangement of items to be washed from a number of predetermined arrangements of items to be washed. An allocation unit determines a cleaning matrix including an allocation of a treatment specification to each of the regions in the map, and outputs the cleaning matrix. A control apparatus executes a wash program based on the cleaning matrix.

A system includes a dishwasher having a receptacle for items to be washed, an image capturing facility configured to capture an image of the receptacle of the dishwasher for items to be washed, and an image processing facility configured to determine in dependence upon the captured image a map of an arrangement of the items to be washed. The map includes a division of the receptacle into a number of regions, with each region having a predetermined arrangement of items to be washed from a number of predetermined arrangements of items to be washed. An allocation unit determines a cleaning matrix including an allocation of a treatment specification to each of the regions in the map, and outputs the cleaning matrix. A control apparatus executes a wash program based on the cleaning matrix.

A lock and a home appliance having the same are disclosed. The lock includes a holder provided at one selected from between the cabinet and the door, a housing provided at the other selected from between the cabinet and the door, a first stopper provided at the housing, a fastening unit separably coupled to the first stopper so as to be coupled to the holder when separated from the first stopper, an actuation unit configured to reciprocate in the housing, the actuation unit being configured to be moved away from the introduction port in the state of contacting the holder when the door is moved so as to close the introduction port, the actuation unit being configured to separate the fastening unit from the first stopper while being moved away from the introduction port, a first elastic member for providing force necessary to move the fastening unit away from the introduction port when the fastening unit is separated from the first stopper, a second elastic member for providing force necessary to move the actuation unit toward the introduction port, and an actuation unit lock for fixing the actuation unit to the housing when not in contact with the door and releasing coupling between the actuation unit and the housing when in contact with the door.

A system and method for cleaning a dish, comprising: capturing at least one image of said dish using at least one camera; computing a bounding polygon for a dirty region in said image, wherein said dirty region is a region of said dish containing unwanted material that needs to be removed; computing a three dimensional representation of said bounding polygon by estimating three dimensional locations of multiple points within said bounding polygon; computing a spray pattern within said three dimensional representation of said bounding polygon such that the spray pattern substantially covers all regions of said three dimensional representation; and spraying a fluid on said dirty region of said dish with a nozzle, wherein said nozzle is reoriented or relocated such that said fluid reaches at least one location within said three dimensional representation of said bounding polygon according to said spray pattern, whereby dirty regions of said dish are targeted for a fast and efficient cleaning of said dish.

A washing and drying unit configured to perform at least one of washing, drying, and sterilizing, or any combination thereof includes at least one sensor configured to determine a dimension and/or shape of the object, a washing and/or sterilizing apparatus and a drying and/or sterilizing apparatus configured to direct at least one apparatus or spray of a washing and/or sterilizing or a drying and/or sterilizing fluid to the object, at least one robot arm connected to at least one of the apparatuses, and a controller operable to orient and move the at least one robot arm. A separate sterilization apparatus may be included and the sterilization may include using electrified water or water that has been exposed to ultraviolet light. The controller orients the at least one robot arm based on the dimension and/or shape determined by the at least one sensor.

A dishwasher for treating dishes according to a cycle of operation, the dishwasher having a tub at least partially defining a treating chamber and a first dish rack received within the treating chamber, and having a least a portion with a seat for supporting dishes. A second dish rack is located above the first dish rack and includes a movable section.

A dishwasher for treating dishes according to a cycle of operation, the dishwasher having a tub at least partially defining a treating chamber and a first dish rack received within the treating chamber, and having a least a portion with a seat for supporting dishes. A second dish rack is located above the first dish rack and includes a movable section.

A lock and a home appliance having the same are disclosed. The lock includes a holder provided at one selected from between the cabinet and the door, a housing provided at the other selected from between the cabinet and the door, a first stopper provided at the housing, a fastening unit separably coupled to the first stopper so as to be coupled to the holder when separated from the first stopper, an actuation unit configured to reciprocate in the housing, the actuation unit being configured to be moved away from the introduction port in the state of contacting the holder when the door is moved so as to close the introduction port, the actuation unit being configured to separate the fastening unit from the first stopper while being moved away from the introduction port, a first elastic member for providing force necessary to move the fastening unit away from the introduction port when the fastening unit is separated from the first stopper, a second elastic member for providing force necessary to move the actuation unit toward the introduction port, and an actuation unit lock for fixing the actuation unit to the housing when not in contact with the door and releasing coupling between the actuation unit and the housing when in contact with the door.

A lock and a home appliance having the same are disclosed. The lock includes a holder provided at one selected from between the cabinet and the door, a housing provided at the other selected from between the cabinet and the door, a first stopper provided at the housing, a fastening unit separably coupled to the first stopper so as to be coupled to the holder when separated from the first stopper, an actuation unit configured to reciprocate in the housing, the actuation unit being configured to be moved away from the introduction port in the state of contacting the holder when the door is moved so as to close the introduction port, the actuation unit being configured to separate the fastening unit from the first stopper while being moved away from the introduction port, a first elastic member for providing force necessary to move the fastening unit away from the introduction port when the fastening unit is separated from the first stopper, a second elastic member for providing force necessary to move the actuation unit toward the introduction port, and an actuation unit lock for fixing the actuation unit to the housing when not in contact with the door and releasing coupling between the actuation unit and the housing when in contact with the door.