Design And Implementation Of Health Monitoring System Based On ZigBee

With the aging of the population in our country and the improvement of the people's living standards,people's health awareness is also increasing,resulting in a serious shortage of medical resources in China.At present,China's high-quality medical resources are mainly concentrated in some developed first-tier cities.Many under-developed areas have problems in accessing patients.At the same time,the major hospitals in big cities are very crowded,causing serious conflicts between doctors and patients.Improving the level of telemedicine monitoring in China and realizing community clinics and family monitoring are important ways to solve the shortage and distribution of medical resources.At present,most of the human physiological data collection is based on manual manual measurement in the hospital,and then the collected data is input to the hospital's patient database system.It is time-consuming and labor-consuming to manually measure physiological data,and the measurement error rate is relatively high,which can not meet the real-time monitoring needs of some complex scenarios.Therefore,it is very necessary to design a remote health monitoring system to realize real-time wireless monitoring of human physiological data.At first,the human health monitoring system designed in this paper combines the ECG,body temperature and vibration sensors with ZigBee terminal nodes to collect physiological data,and then realizes the wireless transmission of physiological data based on the ZigBee wireless communication network.Because there are many interferences in the ECG signal and the quality of the ECG signal is high,this paper designs a wavelet threshold filter algorithm to filter the ECG signal and enhances the accuracy and identifiability of ECG data through filtering.The system combines the PC monitoring software with the database to realize the storage,display and remote transmission of physiological data,as well as auxiliary medical diagnosis.First of all,this paper designs the hardware circuit of the system's physiological data acquisition,including the ECG acquisition front-end circuit,body temperature acquisition circuit,body movement acquisition circuit,power supply circuit,ZigBee node circuit and other parts.The software part separately designed the AD conversion program for ECG acquisition and body movement data acquisition,the single bus communication program for reading body temperature data,the ZigBee networking program and the host computer monitoring software,etc.Experiments show that this system can accurately and effectively collect physiological data of human body,and realize reliable wireless transmission function,and can adapt to human body physiological data monitoring under various complex conditions.The system can evaluate the health status of the subject more accurately and provide help for the diagnosis of the doctor.