Pneumatic control system is designed as main air source open + CO² emergency air source open to achieve firefighting linkage control, remote monitoring, feedback and control through MODBUS485S protocol, PLC and BAS The main function of the pneumatic fire smoke exhaust window is daylighting, smoke extraction, ventilation and ventilation, and it is mainly daylighting. When receiving the fire linkage signal, all sunroofs can be opened within the set time. When the pressure of the main air source is insufficient, the emergency CO² air source can be opened according to the instructions of the control system, and all the fire smoke exhaust windows can be opened at the set time to ensure safety and reliability.