Wireless Physiological Parameters Monitoring System And Measurement Terminal Design

During the long term application process of traditional hospital monitoring system,some shorts,such as large volume of size,high cost and inconvenience caused by wired connections,has been revealed.These low monitoring efficiency and restrict the activity space of patients.For the bad user experience,new flexible kind of monitoring scheme has become an urgent need.With the development of IoT technology,applying WSN to medical monitoring system has become a new trend.Meanwhile the emergence of small volume of parameters measurement module provides the design of wireless monitoring portable terminal feasibility.Thus this paper proposes a kind of human body parameters wireless monitoring system oriented to hospital,contains both integrity and measurement terminal details of design and function verification.The system adopts ZigBee as transmission method.Wrist type terminal device measures several physiological parameters through embedded small volume measurement modules.Then WSN passes the data to monitor station through gateway to fulfill centralized processing.This paper firstly commits the demonstration of system scheme,presents principle contents and introduces integrity design scheme,including detailed introduction of different role device.Meanwhile message pattern and router mechanism can be presented.Then details of oxyhemoglobin saturation measurement module design are presented,including hardware design,filter algorithm and relevant inside functional module;presents design details of body temperature measurement module;proposes and emphatically introduces the process of blood pressure value obtainment through artificial neural network.Lastly the measurement and simulation results are verified.The performance of the system network is verified through building a certain scale network.Shortcomings are summarized from experiment results,and the subsequent work is expected.