Machine room monitoring method and system and storage medium

The invention relates to the technical field of fresh air systems, and discloses a machine room monitoring method and system and a storage medium. According to the method, all devices in a machine room system are controlled to start or stop working at preset time intervals; the cold load of a building where the machine room system is located is calculated, and the number of started refrigerating units is automatically adjusted according to the cold load or the load current percentage of the refrigerating units; sequentially starting or suspending all refrigerating units in the machine room system according to a preset equal operation time principle; chilled water pressure difference bypass adjustment is conducted on the machine room system; the water outlet temperature of the frozen water is reset; the chilled water pump, the cooling water pump and the hot water pump are subjected to variable-frequency adjustment. Therefore, stable work of the machine room system can be guaranteed, and the energy efficiency o