Study On Automatic Monitoring Of Sleep Apnea Syndrome And Sleeping Posture Adjustment Pillow

There are some related diseases,such as myocardial infarction,insufficient oxygen supply,drowsiness in the morning,blurred memory and so on,which are potentially dangerous in the population with sleep Apnea syndrome(sleep apnea syndrome,SAS).The main cause of sleep Apnea syndrome is the backward movement or fall of tongue root and soft alligator caused by gravity factors of supine sleep,resulting in smaller or closed respiratory tract space.The treatment of this symptom includes continuous positive airway pressure ventilation(CPAP),mouth corrector and operation,but there are many shortcomings,such as: continuous positive airway pressure ventilation,that is,what we call the use of positive airway pressure.Ventilator,the equipment is very expensive,inconvenient to carry,poor comfort and so on.In order to solve the above problems,first of all,according to the principle of human respiration(respiration is caused by rhythmic contraction and expansion of the chest,A sleep respiration detection method based on polyvinylidene fluoride(PVDF)sensor was proposed.Based on the characteristics of PVDF thin film and related sensors,a PVDF sensor for detecting respiratory signals is designed according to the characteristics of PVDF thin films.The vibration signal produced by chest motion during respiration is detected to reflect the respiratory state of the sleeper,and the filter circuit and amplification circuit are designed to filter and amplify the detected vibration signal.Reason.In order to facilitate the follow-up signal analysis.After the sleep respiratory signal detection is completed by PVDF sensor,the corresponding pillow structure and embedded system are designed according to the function of the sleep pillow which automatically adjusts the sleeping position and improves the occurrence of dyspnea.The core part of the control module of the embedded system uses STM32F1 microprocessor,and the execution module mainly includes the micro filling and discharging pump and the airbag.The pillow can adjust the slope and height of the pillow by filling and releasing the air bag.The real-time monitoring of sleep respiratory status of patients can discover and record the duration and frequency of sleep Apnea syndrome,and adjust the height of pillows through theairbag device installed in pillows.And slope to change the prone sleeping position of the sleeping person into the lateral sleeping position,which greatly improves the respiratory fluency of the patients with sleep Apnea syndrome,is beneficial to the treatment of sleep Apnea syndrome,and can prevent the occurrence of many complications in advance.Improve the survival rate of the patient.