Design Of Wrist Blood Pressure Monitoring System Based On Local Storage And Wireless Network

In the current society,people lives much pressure,easily leading to high blood pressure,which may cause a variety of diseases,People has a growing emphasis on health issues,while the existing blood pressure monitoring equipment does not fully meet the requirements of people for health.with the wireless sensor network developing rapidly,if we add local storage and wireless network transmission function to the conventional electronic sphygmomanometer,taking the measured data to a remote server,and then doctor diagnosis the data timely,So we can reach the purpose of detection and treatment early.In the current market,most electronic sphygmomanometer are based on cuff style which carrying inconvenient,and the power consumption is large,it can not meet the low-power and portable requirements fully,the human can measure body blood pressure with the arm,but also can with the wrist.the paper designs a wrist-based blood pressure monitoring system,so that reduce the connecting means of blood pressure monitoring system,gathering all equipment together,so it meets the small,and portable characteristic,it provides a prerequisite for multi-parameter fusion in the future.This paper focuses on three parts:1.Design and implementation of wrist blood pressure monitoring system:study the wrist blood pressure monitor system which is terminal equipment,including data collection,MCU data processing,wireless network transmission module,compose the realization of software modules including analysis of data collection,50Hz software frequency filtering,the realization of software algorithms and so on.2.Local storage section:research SD card local storage hardware,connect SD card with MSP430 microcontroller,achieve low-level driver of the SD card and constructe FAT 16 file system on the basis of the underlying drivers,so that developers can accessing data through a simple file manipulation functions.3.Research and Implementation of ZigBee wireless network transmission protocol:Analysis the ZigBee protocol stack and network topology and study Zibee wireless network hardware,including the terminal nodes,the router nodes,the coordinator node,finally we complete the preparation of the protocol stack.