A robust wearable health monitoring system based on WSN

Health monitoring system is one of most important and practical applications of wireless sensor network (WSN). Even though various health monitoring devices based on WSN are used, they are still quite limited in the sense of mobility and accuracy. In this paper a new wearable health monitoring system is proposed, which consists of bio-shirt and vital sensor node. Here the accuracy of the measurement of electrocardiogram signal is enhanced, and the sensor node is optimized for the use in WSN. Also, a multi-hop routing protocol is employed to effectively deal with rapid changes in the link between a fast moving target node and static relay nodes. The experiments for various types of movements of an individual wearing the proposed bio-shirt reveal that the proposed system significantly improves the performance of health monitoring based on WSN compared to the existing device.