Abstract: A plant cultivating apparatus according to an embodiment of the present disclosure includes a main body, a shelf, a cultivation bed, and a cultivation container. The shelf is disposed in the cultivation space formed in the main body, the cultivation bed is disposed on the shelf, and the cultivation container is seated in the cultivation bed. The cultivation bed includes a water supply part for receiving a predetermined amount of water. In addition, the shelf includes a water level sensor. The water level sensor is positioned vertically below the water supply part to measure an amount of water stored in the water supply part.

Abstract: A plant cultivating apparatus according to an embodiment of the present disclosure includes a main body, a shelf, a cultivation bed, and a cultivation container. The shelf is disposed in the cultivation space formed in the main body, the cultivation bed is disposed on the shelf, and the cultivation container is seated in the cultivation bed. The cultivation bed includes a water supply part for receiving a predetermined amount of water. In addition, the shelf includes a water level sensor. The water level sensor is positioned vertically below the water supply part to measure an amount of water stored in the water supply part.

Abstract: A plant cultivation apparatus includes a cabinet configured to accommodate a cultivator that is configured to accommodate at least a portion of a plant, a storage configured to store nutrient liquid to be supplied to the cultivator, a supply path connected to the storage and configured to supply the nutrient liquid from the storage to the cultivator, and a nutrient liquid circulator that includes a first member configured to increase a pH of the nutrient liquid and a second member configured to decrease the pH of the nutrient liquid. The nutrient liquid circulator is configured to discharge the nutrient liquid from the storage and to circulate the nutrient liquid to the storage through at least one of the first member or the second member.

Abstract: A plant cultivation apparatus includes a cabinet, a bed disposed in the cabinet, a cultivator configured to be disposed on the bed and to accommodate a cultivation medium therein, where the cultivation medium is configured to accommodate at least portion of a plant, and the cultivator defines a cover water channel at a top surface thereof, and a water supply disposed inside the cabinet and configured to supply water to the cover water channel, where at least a portion of the water supply is located above the cover water channel. The cover water channel is in fluid communication with an inside of the cultivator and configured to guide the water supplied from the water supply to the cultivation medium in the inside of the cultivator.

Abstract: A coffee maker includes: an extractor that is configured to receive ground coffee and water and that is configured to extract liquid coffee from the ground coffee and the water, and a dispenser configured to supply the water to the ground coffee in the extractor. The dispenser includes an arm that is rotatably disposed above an inlet of the extractor and that includes a nozzle configured to supply the water to the extractor, a first actuator that is disposed at the arm and that is configured to move the nozzle to a position where the nozzle is above the inlet of the extractor, and a second actuator that is disposed at the arm and that is configured to rotate the nozzle to orient the nozzle at a predetermined angle relative to the inlet of the extractor.

Abstract: A coffee maker includes an extractor configured to receive ground coffee and water and to extract coffee from the ground coffee, and a dispenser configured to supply water to the ground coffee in the extractor. The dispenser includes an arm that is rotatably disposed vertically above an inlet of the extractor and includes a nozzle configured to supply water to the ground coffee in the extractor, a first actuator configured to rotatably support the arm and to rotate the arm about a center of the inlet along an edge of the inlet, and a second actuator connected to the arm and configured to rotate the arm relative to the first actuator.

Abstract: A plant cultivating apparatus according to an embodiment of the present disclosure includes a main body, a shelf, a cultivation bed, and a cultivation container. The shelf is disposed in the cultivation space formed in the main body, the cultivation bed is disposed on the shelf, and the cultivation container is seated in the cultivation bed. The cultivation bed includes a water supply part for receiving a predetermined amount of water. In addition, the shelf includes a water level sensor. The water level sensor is positioned vertically below the water supply part to measure an amount of water stored in the water supply part.

Abstract: An electric dust collecting filter includes a plurality of film electrodes that are arranged apart from each other at regular intervals and form an electric field to collect foreign matter in the air. The film electrode includes an insulating part that defines one surface and the other surface of the film electrode, a first electrode part disposed on one side inside the insulating part and having a plurality of first wire electrodes spaced apart from each other, and a second electrode part disposed on the other side inside the insulating part and having a plurality of second wire electrodes that are disposed between the plurality of first wire electrodes spaced apart from each other and provided alternately with the plurality of first wire electrodes.

Abstract: The present invention relates to an electric dust collecting filter and an electric dust collecting device comprising same. An electric dust collecting filter according to one aspect of the present invention comprises a plurality of film electrodes that are arranged apart from each other at regular intervals and form an electric field to collect foreign matter in the air, wherein the film electrode includes: an insulating part that defines one surface and the other surface of the film electrode; a first electrode part disposed on one side inside the insulating part and having a plurality of first wire electrodes spaced apart from each other; and a second electrode part disposed on the other side inside the insulating part and having a plurality of second wire electrodes that are disposed between the plurality of first wire electrodes spaced apart from each other and provided alternately with the plurality of first wire electrodes.