A Controller Design for Oxygen Concentrator

In recent years, an improvement of air quality has considered as a big issue in many countries. Fine dust and exhaust have a strong influence on ventilating indoor or outdoor. This makes people close the window to prevent inflow of corrupted air by fine dust from outside. It causes low level of air clearness of people's studying or working. This phenomenon has led some useful devices for better air quality to appear. Furthermore, there are other types of device for air clearness which directly emit oxygen through isolating nitrogen and oxygen. But it is not worthy because of many limited conditions. In this paper, a controller design for an oxygen concentrator is constructed by on-line and performed for multi purposes. PCB board including wi-fi system is equipped by IoT network, relay system and regulator.