Sound sleep control system with sleep state feedback in closed loop path and method thereof

The invention relates to a sound sleep control system with sleep state feedback in a closed loop path and a method thereof, which include a sensor, a controller, and an actuator; wherein the sensor isa brain wave detection device, which is used for having a real-time collection of an EEG signal of human body sleep and sending the EEG signal to the controller; the controller is a computer, which is used for identifying a stage of the human body sleep according to the EEG signal, generating an acoustic model similar to a sleep spectrum of the next stage, and sending the model to the actuator; the actuator is a player of hypnotic sound, which is used for playing the hypnotic sound. The sound sleep control system with the sleep state feedback in the closed loop path and the method thereof arecharacterized in that based on a feedback control idea, the sleep control system is established with human body sleep states as control object and the EEG signal as a feedback quantity; based on studying features of the EEG s