Apparatus and method for diagnosing fault for lithium-air battery based power supply device

An apparatus for diagnosing a fault of a lithium-air battery based power supply device, the apparatus comprising:

• a data collection part configured to perform a test operation on a lithium-air battery based power supply device which comprises an air supply part, the air supply part comprising an air pump for suctioning external air, a moisture adsorption part for absorbing moisture in the air supplied from the air pump, an oxygen concentration part for concentrating oxygen in the air supplied through the moisture adsorption part, and a battery part for receiving the concentrated oxygen from the oxygen concentration part at a time of discharge, and in response to a fault occurring in the air supply part, the moisture adsorption part, the oxygen concentration part, and the battery part, measure operational state changes of the air supply part, the moisture adsorption part, the oxygen concentration part, and the battery part according to the types of the fault, to collect data;
• a training part configured to train a neural network model by repeating a process of inputting residual changes according to the types of the fault into a neural network model as input values and classifying the types of the fault based on output values of the neural network model which are measurements of the operational state changes corresponding to the input values;
• and
• a fault diagnosis part configured to, during an actual operation of the lithium-air battery based power supply device, input residual changes of the air supply part, the moisture adsorption part, the oxygen concentration part, and the battery part as input values for the trained neural network model, and diagnose a type of a fault based on output values output in response to the input values of the neural network model;
• wherein the data collection part comprises:
• a first sensor part for detecting a fault of at least one solenoid valve provided in:
• (i) an air route connecting the air pump to the moisture absorption part, (ii) an air route connecting the moisture absorption part to the oxygen concentration part, (iii) an air route connecting the oxygen concentration part to a vacuum pump discharging air of the oxygen concentration part to an outside, or (iv) an air route connecting the oxygen concentration part to the battery part.