Abstract: Disclosed is a multi-layer soft pneumatic actuator, including: a surface layer including driving protrusions formed on one surface; a first chamber layer stacked on the other surface of the surface layer and including a first chamber configured to partially overlap the driving protrusion; a second chamber layer stacked on a layer different from the first chamber layer on the other surface of the surface layer, including a second chamber having a partial region overlapping the driving protrusion and the first chamber; and an air line layer configured to inject air into each of the first chamber and the second chamber.

Abstract: A vacuum tweezer according to the present disclosure includes: a first plate and a second plate of which first and second needle holes facing each other are drilled at lower ends of each, and are positioned to face each other; and a first side plate and a second side plate connecting and fixing the first plate and second plate to form a tube and including a recess portion that is concave downward at a higher position than the first and second needle holes, respectively.

Abstract: Proposed is a leak detection method including a mode determination step of determining, by a mode determination part, an operating mode of a cooling system on the basis of information received from the cooling system, a reference level determination step of determining, by a reference level determination part, a reference level in a cooling water storage tank in the operating mode determined in the mode determination step, a leak determination step of determining, by a leak determination part, whether a leak has occurred by comparing the reference level determined in the reference level determination step and a cooling water level in the cooling water storage tank measured in real time, and a notification step of providing, by a leak notification part, leak information to a set terminal when it is determined that the leak has occurred in the leak determination step.

Abstract: Proposed is a leak detection device including a level measurement means coupled to a cooling water storage tank in which cooling water is stored, and configured to measure a cooling water level in the cooling water storage tank, and a controller configured to detect a leak on the basis of operating mode information of the cooling system recognized on the basis of information received from the cooling system, and cooling water level information received from the level measurement means.

Abstract: Proposed are a chiller operation system for ESS batteries and an operating method thereof. The system includes an ESS battery, a battery control unit that controls charging and discharging of the ESS battery, a chiller unit that cools the ESS battery according to a cooling control signal during charging and discharging of the ESS battery, an environmental sensor that measures detected temperature and detected humidity in a condensation occurrence area, a cooling control unit that performs heat management by providing the cooling control signal, calculates the dew point temperature using the detected temperature and the detected humidity, and provides a dehumidification control signal when condensation is predicted, and an air conditioning unit that operates in dehumidifying operation mode for the ESS battery according to the dehumidification control signal.

Abstract: Provided is an output control method of a parallel battery energy storage device including an inverter. More particularly, the present disclosure relates to an output control method, wherein when an external battery is connected in parallel to an inverter equipped with an internal battery and is used, output power is limited depending on a capacity of the external battery, thereby ensuring user safety.

Abstract: Provided is an output control method of a parallel battery energy storage device including an inverter. More particularly, the present disclosure relates to an output control method, wherein when an external battery is connected in parallel to an inverter equipped with an internal battery and is used, output power is limited depending on a capacity of the external battery, thereby ensuring user safety.