Ventilation and air conditioning equipment system based on cascade control

The invention discloses a ventilation and air conditioning equipment system based on cascade control, and belongs to the technical field of building energy conservation. The temperature of the skin of the wrist of a human body is monitored in real time through an intelligent bracelet, and a mobile terminal module obtains an automatic control signal according to data monitored by the intelligent bracelet or generates a remote control signal by manually controlling the mobile terminal module; the ventilation and air conditioning equipment control system controls ventilation and air conditioning equipment to be turned on, turned off or adjusted in a cascade mode according to the automatic control signal or the remote control signal, namely windows, fans and air conditioners are turned on and turned off in a cascade mode according to different temperature ranges of skin temperature, and real physiological needs of a human body are embodied through the intelligent bracelet; and the indoor ventilation air condition