Development of health Care Monitoring System Based on ZigBee

Abstract

A lot of research has been carried out in the field of health care monitoring. In the recent years, developing of wireless health care monitoring system has emerged as an area of research. The presented work deals with the development of health care monitoring system that can monitor the patient continuously and simultaneously transmit the physiological data to the doctors and other medical staff. The developed system is based on ZigBee protocol (IEEE standard 802.15.4). ZigBee is a dedicated communication protocol for sensor networks. The protocol is designed for low cost and low power consumption by the sensors network. The complete system consists of sensing node (transmitter) and the coordinator (receiver). The components used to develop the system are temperature sensor, microcontroller (PIC 16F886), LCD display and the transceiver (CC2520, based on the ZigBee protocal). The system developed has low cost, low power and compact. The performance of the system is analysed for indoor and outdoor environment, under various conditions. It is observed that the system provides reliable monitoring and secure wireless transmission of the parameters of human body. Further it is observed that the current consumption of the system is 64.1 mA and 71.2 mA at the sensing node and coordinator respectively, when transmitted power is set at -18 dBm. The result justifies the low power consumption of the system. The range of the system varies from 10m (indoor environment) to 30m (line of sight range in outdoor environment) at -18 dBm transmitted power, which is suitable for hospital environment.