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Implementation of a Wireless Body Area Network for Healthcare Monitoring

The rapid growth of wireless technologies and personal area networks has enabled the continuous healthcare monitoring of mobile patients using compact sensors that collect and evaluate body parameters and movements. These sensors constitute a body area network (BAN) where patients’ vital signs are collected and reported wirelessly to a base station. Once the data is received, it is displayed or stored in a database for future use. The use of BANs is to provide the users with logging of patients’ critical vital signs, and also to provide primary healthcare providers a snapshot of the wearer’s health. The goal of this project was to investigate the feasibility of the inexpensive construction, and use of a BAN. A BAN, consisting of two nodes and a base station was successfully built and tested using open source and inexpensive hardware to measure pulse rate, body temperature, and patient’s location. Each node consisted of a pulse sensor, a temperature sensor, a GPS module and a ZigBee wireless modem packaged together. The nodes were designed to incorporate other sensors, such as an accelerometer, in the future. The base station consisted of a receiving ZigBee modem and a Wi-Fi module. The captured data was inserted into a MySQL database where a webpage with a graphing application programming interface (API) was used to display the data. The system has been successfully tested in real time where data was successfully obtained and displayed. Future enhancements to safeguard the data, including the encryption of the patient data is under investigation.