Regular assessment of the degree of sedation and sedative effect is an important basis and indicator to guide physicians in adjusting medications. Currently, the clinical assessment of sedation level is mainly conducted by professional scales. Such as Ramsay score, Riker score, etc. It includes the assessment of the patient’s waking state as well as the sleep state. The main way is to determine whether the patient is comatose, drowsy, anxious, agitated, etc. and can complete the commanded actions correctly by observing the patient’s state and talking with them.