Title: A Smart Gateway Design for WSN Health Care System
Master Thesis On Embedded System
Abstract: Using Wireless Sensor Networks (WSNs) in health care system has yielded a tremendous effort in recent years. However, in most of these researches tasks like sensor data processing, health states decision making and emergency messages sending are done by a remote server. Numbers of patient with large scale of sensor data consume a lot of communication resource, bring a burden to the remote server and delay the decision time and notification time. In this paper, we present a prototype of a smart gateway that we have implemented. This gateway is an interconnection and services management platform especially for WSN health care systems at home environments, by building a bridge between WSN and public communication networks, compatible with an on-board data decision system (DDS) and a lightweight database, which enable to make the patient’s health states decision in the gateway in order to get faster response time to the emergencies. We have also designed the communication protocols between WSN, gateway and remote servers. Additionally Ethernet, Wi-Fi and GSM/GPRS communication module are integrated into the smart gateway in order to report and notify information to care-givers. We have conducted experiments on the proposed smart gateway by performing it together with a wireless home e-health care sensor network. The results show that it is reliable and has low latency and low power consumption.
Project Intro: Because of the numerous advantages of Wireless Sensor Networks (WSNs), include wide coverage, low cost, low power, self-configuration and real-time data access, WSNs have been used in various areas such as military, health care, agriculture, environmental monitoring , industry, natural disaster prevention, wildlife tracking system, intelligent transportation, building monitoring, space exploration and other fields. It is considered to be one of the top ten technologies which will change the world in the future. In this paper, we examine on of these research hot spots, which is using WSNs in health care system. Using WSNs in health care system which integrates wireless communications, health care and sensor network, have attracted a lot of research efforts in recent years. We are going to discuss how a smart gateway will be used in a health care system, as well as how to design this smart gateway following the processes of embedded system development.
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