Abstract: A substrate treating method includes moving a first component of a substrate treatment device to a preset position in response to a treating process of the substrate treatment device, detecting, by a plurality of position detection sensors, a position of the first component, vision-testing, by a vision sensor, a positional state of the first component, and determining an operational state of an error in the detection of the plurality of position detection sensors or a malfunction of the substrate treatment device based on a detection result obtained by the plurality of position detection sensor and a test result obtained by the vision sensor.

Abstract: The inventive concept provides a method to determine whether a substrate treatment process is normal using a deep learning model. The method comprising receiving input on a substrate treatment process video, preprocessing the inputted video, using the deep learning model to study a preprocessed video, and determining whether the substrate treatment process is normal by comparing the trained model and a real time substrate treatment process video.

Abstract: Disclosed is a substrate treating apparatus. The substrate treating apparatus includes an imaging unit that photographs loci of the one or more discharge liquids discharged from the plurality of nozzles, and an inspection unit that calculates impact points of the one or more discharge liquids discharged from the plurality of nozzles and determines whether the impact points of the one or more discharge liquids discharged from the plurality of nozzles are normal. The inspection unit includes an image synthesizing unit that synthesizes a plurality of images captured by the imaging unit, a pre-processing unit that pre-processes image data generated through the image synthesizing unit, and a calculation unit that calculates whether the impact points of the one or more discharge liquids discharged from the plurality of nozzles are normal by comparing the image data pre-processed by the pre-processing unit.

Abstract: Provided are an identity (ID)-based encryption and signature method and a terminal that use an ID of a transmitter or a receiver as a part of the filename or the extension of a file transmitted to the receiver by the transmitter. Accordingly, it is possible to enable a user to visually recognize that the file has been provided with security. Also, it is possible to designate an associated program for the extension, and the user can easily decrypt or verify the file through the designated associated program.

Abstract: Provided are an identity (ID)-based encryption and signature method and a terminal that use an ID of a transmitter or a receiver as a part of the filename or the extension of a file transmitted to the receiver by the transmitter. Accordingly, it is possible to enable a user to visually recognize that the file has been provided with security. Also, it is possible to designate an associated program for the extension, and the user can easily decrypt or verify the file through the designated associated program.

Abstract: A water-cooled air conditioning system includes an indoor unit having a first heat exchanger where air and refrigerant are heat-exchanged with each other, an outdoor unit having a second heat exchanger where water and the refrigerant are heat-exchanged with each other, a cooling tower for cooling the water directed to the second heat exchanger, a discharge duct for guiding the air conditioned in the indoor unit to an indoor space for an air conditioning, and an intake duct for guiding the air in the indoor space to the indoor unit. The second heat exchanger is a plate type heat exchanger having a space that is divided into a plurality of sections along which the refrigerant and the cooling water separately flow.

Abstract: A water-cooled air conditioner is provided, and includes an indoor unit, an outdoor unit, a cooling tower, and a boiler. The indoor unit cools or heats a space, and includes a first heat exchanger that performs heat exchange between air and refrigerant. The outdoor unit is installed separately from the indoor unit and includes a second heat exchanger that performs heat exchange between water and refrigerant. The cooling tower is connected to the outdoor unit, and cools water flowing to the second heat exchanger. The boiler is connected to the outdoor unit, and increases a temperature of the water flowing to the second heat exchanger. The second heat exchanger is formed with a plurality of thin plates separated from one another by predetermined gaps through which refrigerant and water flow. The second heat exchanger includes an anti-freezing device that prevents freezing of water within the second heat exchanger.

Abstract: The air conditioner includes a first and a second heat exchanger, a plurality of compressors, a pipe for uniform distribution of oil, a plurality of oil separators, and an oil return opening. The first heat exchanger performs heat exchange between air of an indoor space and refrigerant to condition the air. The second heat exchanger is connected to the first heat exchanger through a pipe, to perform heat exchange between the refrigerant and water. The plurality of compressors is installed at one side of the second heat exchanger, to compress the refrigerant to a high temperature and a high pressure. The pipe for uniform distribution of oil communicates the plurality of compressors with each other, to guide a flow of oil within the plurality of compressors to flow between the compressors. Each oil separator is provided at an outlet of a respective compressor, to separate oil included in refrigerant discharged from the compressors.

Abstract: An air conditioner is provided. The air conditioner includes two or more heat exchangers, a refrigerant pipe, a compressor, an accumulator, and an overcooler. The heat exchangers perform heat exchanging between air or water and refrigerant. The refrigerant pipe guides refrigerant circulating between the two or more heat exchangers. The compressor compresses refrigerant flowing in the refrigerant pipe to a high temperature and pressure. The accumulator is provided on one side of the compressor, to separate an inflowing refrigerant into a liquid refrigerant and a gaseous refrigerant. The overcooler is provided on one side of the heat exchangers, to further cool refrigerant passing through the heat exchangers.

Abstract: An air conditioner is provided. The air conditioner includes a first and a second heat exchanger, a plurality of compressors, a uniform oil pipe, a plurality of oil separators, and an oil return opening. The first heat exchanger performs heat exchange between air of an indoor space and refrigerant to condition the air. The second heat exchanger is connected to the first heat exchanger through a pipe, to perform heat exchange between the refrigerant and water. The plurality of compressors is installed at one side of the second heat exchanger, to compress the refrigerant to a high temperature and a high pressure. The uniform oil pipe communicates the plurality of compressors with each other, to guide a flow of oil within the plurality of compressors to flow between the compressors. Each oil separator is provided at an outlet of a respective compressor, to separate oil included in refrigerant discharged from the compressors.

Abstract: A water-cooled air conditioning system includes an indoor unit having a first heat exchanger where air and refrigerant are heat-exchanged with each other, an outdoor unit having a second heat exchanger where water and the refrigerant are heat-exchanged with each other, a cooling tower for cooling the water directed to the second heat exchanger, a discharge duct for guiding the air conditioned in the indoor unit to an indoor space for an air conditioning, and an intake duct for guiding the air in the indoor space to the indoor unit. The second heat exchanger is a plate type heat exchanger having a space that is divided into a plurality of sections along which the refrigerant and the cooling water separately flow.

Abstract: A water-cooled air conditioner is provided, and includes an indoor unit, an outdoor unit, a cooling tower, and a boiler. The indoor unit cools or heats a space, and includes a first heat exchanger that performs heat exchange between air and refrigerant. The outdoor unit is installed separately from the indoor unit and includes a second heat exchanger that performs heat exchange between water and refrigerant. The cooling tower is connected to the outdoor unit, and cools water flowing to the second heat exchanger. The boiler is connected to the outdoor unit, and increases a temperature of the water flowing to the second heat exchanger. The second heat exchanger is formed with a plurality of thin plates separated from one another by predetermined gaps through which refrigerant and water flow. The second heat exchanger includes an anti-freezing device that prevents freezing of water within the second heat exchanger.

Abstract: An air conditioner is provided. The air conditioner includes two or more heat exchangers, a refrigerant pipe, a compressor, an accumulator, and an overcooler. The heat exchangers perform heat exchanging between air or water and refrigerant. The refrigerant pipe guides refrigerant circulating between the two or more heat exchangers. The compressor compresses refrigerant flowing in the refrigerant pipe to a high temperature and pressure. The accumulator is provided on one side of the compressor, to separate an inflowing refrigerant into a liquid refrigerant and a gaseous refrigerant. The overcooler is provided on one side of the heat exchangers, to further cool refrigerant passing through the heat exchangers.

Abstract: A water cooling type air conditioner is provided. The water cooling type air conditioner includes first and second heat exchangers, a refrigerant pipe, and a direction controlling unit. The first heat exchanger performs heat exchange between air and refrigerant. The second heat exchanger performs heat exchange between the refrigerant and cooling water. The refrigerant pipe is connected between the first heat exchanger and the second heat exchanger to guide a flow of the refrigerant. The direction controlling unit is disposed on one side of the second heat exchanger and controls the refrigerant and the cooling water flowing inside the second heat exchanger to flow in respectively opposite directions.

Abstract: A water-cooled air conditioner and a method controlling the same are provided. The water-cooled air conditioner includes a first heat exchanger where indoor air is heat-exchanged with refrigerant, a compressor for compressing the refrigerant, a plate-shaped second heat exchanger where the refrigerant compressed by the compressor is heat-exchanged with the water, and a freeze-crack preventing unit that is provided at a side of the second heat exchanger to prevent the water in the second heat exchanger from freezing.

Abstract: A water-cooled air conditioner includes a first heat exchanger where indoor air is heat-exchanged with refrigerant, a compressor for compressing the refrigerant, an accumulator that is installed adjacent to the compressor to filter off liquid-phase refrigerant so that only gas-phase refrigerant can be introduced into the compressor, a plate-shaped second heat exchanger where the refrigerant compressed by the compressor is heat-exchanged with the water, and a refrigerant bypassing unit that selectively operates to allow a portion of the refrigerant compressed in the compressor to be directly returned to the second heat exchanger.

Abstract: A water-cooled air conditioner and a method controlling the same are provided. The water-cooled air conditioner includes a compressor for compressing refrigerant, a plate-shaped heat exchanger where the refrigerant compressed by the compressor is heat exchanged with water, water inflow and outflow pipes for guiding inflow and outflow of the water, and a water detecting unit for detecting if the water exists in the heat exchanger. The water inflow and outflow pipes are provided in the heat exchanger. The water detecting unit is provided at a side of one of the water inflow and outflow pipes.

Abstract: A heat exchanging system of a ventilating device includes: a heat exchanging housing communicating with an outdoor air passage and an indoor air passage; a rotational shaft rotatably supported at one side of the case of a ventilating device; and a heat exchanging elements mounted at an outer circumferential surface of the rotational shaft at regular intervals, and performing a heat-exchanging operation of outdoor air and indoor air while being rotated by a wind force of outdoor air passing the outdoor air passage and a blow force of indoor air passing the indoor air passage. Thus, any additional driving unit is not necessary to rotate the heat exchanging system, so that a fabrication cost can be reduced, the overall size of the ventilating device can be reduced, and a noise and vibration can be reduced.

Abstract: A heat exchanger of a ventilating system, including heat exchange plates which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, and a plurality of embossing protrusions which are formed on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor air which flows in the outdoor air path, can improve heat transfer performance by controlling development of a boundary layer by differentiating structure of the air flow of an air path through which indoor air passes and an air path through which outdoor air passes.

Abstract: A heat exchanger of a ventilating system includes a plurality of heat exchange plates which are laminated at a predetermined interval, a first heat exchange portion which is positioned among the heat exchange plates and through which outdoor air passes and a second heat exchange portion which is positioned among the heat exchange plates in turn with the first heat exchange portion and through which indoor air passes. The first and second heat exchange portions are composed of a plurality of heat exchange members having a predetermined length, and an inner surface of one heat exchange member and an outer surface of the other heat exchange member are aligned to face each other. Accordingly, the heat exchanger can improve heat transfer performance by restraining development of a boundary layer by improving air flowing structure of the heat exchanger.