3D Monitoring of Lying Position for Patients with Positional Sleep Apnea Syndrome

In this study, a data acquisition system that monitoring and recording of the position data of the patients is designed. for this work, a circuit with microcontroller is designed and an acceleration sensor which has ability to define position by using 3-axis cartesian coordinate systems is used. the data obtained from the sensor are recorded on a sd card and transferred to a computer via usb in real time. the data transferred to the computer can also be saved in a text file in order to use in matlab program to investigate both time and frequency analyzes. these data which are received to the computer, are grouped to the axis and plotted the position by the computer interface program which is developed at matlab-gui programming language. patient position can be detected as 3d real time. this ability gives us advantage to detect of patient’s lying posture for positional sleep apnea study. it is very important that developed system for infants, elderly and disabled individuals with positional sleep apnea disease especially, can easily use to the detection of the position of the lying. they can determine the most ideal sleeping position for themselves. so, the developed system is portable and it can be used for a number of other study and research.