Artificial intelligence based harmful environment control system connected to internet of things and its harmful environment control method

An artificial intelligence based harmful environment control system connected to Internet of things, the system comprising:

• a plurality of IoT sensors measuring a harmful element and an environmental element of a closed space, and whether there is a person in the closed space;
• a controller unit controlling to display a harmful element measurement value and an environmental element measurement value provided from the plurality of IoT sensors, comparing the harmful element measurement value with a reference range measurement value to determine a harmful environment situation by artificial intelligence according to the reference range measurement value and whether there is the person, deciding a control method corresponding to the determined harmful environment situation, and then selecting and providing an operation control signal for resolving a harmful element according to the decided control method, selecting and controlling to output a guidance message corresponding to the harmful environment situation, and transmitting harmful element control information including the harmful element measurement value, the environmental element measurement value, the harmful environment situation, and the control method;
• a display panel displaying the harmful element measurement value and the environmental element measurement value according to the control of the controller unit, and displaying the guidance screen;
• a speaker voice-outputting the guidance message according to the control of the controller unit;
• and
• a ventilation operating device operated to resolve the harmful element by receiving the operation control signal.