Projects:2015s1-58 Design And Development Of A New Respiratory Monitor For Detection Of Sleep Apnoea

Introduction

The ultimate aim of this project is to develop a respiratory monitor prototype for detection of sleep apnea. It is hoped that the prototype will eventually achieve the real-time monitoring of the patient’s sleep state and record the information of sleep apnea events. In this academic year, the work on detection algorithm has been accomplished and a design plan to construct a physical monitor has been established for the future groups. In this report, the author will deliver a novel intelligent method based on Wavelet Transform to detect the occurrence of sleep apnea, measure the duration of apnea interval and evaluate each detection statement by statistical analysis. In addition, a design plan for the expected monitor is also included. The performance of the detection algorithm has been assessed by testing 100 different cases provided by A/Prof. Baumert. The accuracy of the presented detection method comes to 85% and the sensitivity is up to 95%, which is a significant improvement compared with some previous approaches in other literatures (In literatures, 90%-95% for accuracy, but only 85%-90% for sensitivity). In conclusion, the performance of the detection algorithm has come to the expected level and the hardware construction work will be implemented by the future groups.