The Measurement And Evaluation Technology Of Sleep Quality Information Based On The Smart Phone

As the pace of modern life is becoming faster and faster,the increasing competitive pressure is increasing day after day,more and more people affected by sleep,which urgently needs new methods and techniques to assess sleep quality and make some improvements. Currently there are many methods to evaluate the sleep quality.For example,we can use polysomnogram to monitor EEG, ECG, EMG, oxygen saturation and other physiological signals, so as to evaluate the quality of sleep.There is also another important way, by using the sleep Quality.Index scale.In this paper, I studied the evaluation system of sleep quality based on Android,this system implements a hardware oxygen saturation signal acquisition module, mobile terminal signal analysis algorithms modules and communication modules, and also the implanted Sleep Quality Index scale on the mobile phone side.Oxygen saturation signal hardware acquisition module:through building the analog front-end circuit, including sensor driver circuit, preamplifier circuit, with reverse phase signal separation and amplification circuit, automatic gain control circuit, low power to control the emission of red light and infrared.Experiments show that ratio of these two wavelengths of transmitted light intensity is approximately linear with the value of pulse oximetry(SpO2),making use of this feature,we can tranform the ratio value into the blood oxygen saturation value that we need. The signal receiving and the signal analysis algorithmon Android mobile terminal:add a bluetooth module in physiological parameter detection,and send the collected physiological data such as pulse oximetry to the Android smart phone terminal,then the smart phones will use Android Bluetooth API development to open Bluetooth,search nearby Bluetooth devices and other basic operations,so as to complete data transmission,and display physiological information received in the mobile phone. Then we can assess sleep disorders according to the received pulse oximetry,at the same time wo can also use multimedia sleep quality assessment scale to assess the quality of sleep.The system has completed the acquisition, transmission,and storage functions of the physiological parameters,and use the collected physiological parameter of the individual’s sleep quality to make a scientific assessment.The realization of the communication module based on HTTP and Socket technology:this module realizes the function of communication between mobile phone and the server.Using Tomcat technology to build a virtual server and the Servlet to develop server data communication method and JDBC to realize database operations and the thread pool to realize client simultaneous connections.Mobile terminals realize the connection with the server via HTTP and Socket technology,then upload their personal information and measurement results to the server,in order to do further analysis.