Wireless Medical Monitoring System Based On Multi-sensor

This paper presents a wireless medical monitoring system based on multiple sensors and design a flexible wearable device for noinvasively monitoring respiratory flow and multi physiological parameter real-time with high security,flexibility and portability.The monitoring system is based on a Bluetooth 5.0 module with cc2640r2 f chip designed by TI,a temperature and humidity sensor,and a max30102 sensor adhered on a flexible printed circuit board.The monitoring system only needs to be attached under the nose of the human to effectively measure the respiratory rate and heart rate,oxygen saturation of blood of the human body.The monitoring system has no damage to the human body,and greatly improves the user’s comfort.Specifically.This system can collect and analyze the humidity and temperature of the gas exhaled by the human to obtain respiratory data.Obtaining a PPG(Photo Plethysmo Graphy)signal and calculate heart rate and spo2 through the max30102 sensor.The wireless transmission technology is used to transmit data to the mobile phone client(APP),real-time transmission and viewing,realizing the function of real-time monitoring and save the physiological parameters that changed by sleep apena to a database.A platform was builded by python for analyzing visualization of PPG waves.Experiments were conducted to verify the accuracy and stability of monitoring and capture the sleep apena using the proposed system.The device supports expansion at the same time,supports multiple connection between the Bluetooth device and the client,supports the simultaneous transmission of data of multiple devices,and have conditions to build a wireless human medical sensor network.And the paper compares the test results with the finger-clamp heart rate blood oxygen equipment on the market,verifies the stability and reliability of the whole system.This study provides a new solution for monitoring the apnea during sleep and the changes of physiological parameters caused by sleep apnea as much as possible,and the low power consumption and low cost of the device developed in this study.It is also a step forward for its productization direction,which has certain value and significance for the development of flexible medical wearable and wireless medical monitoring.