1. ECE4095 Final Year Project, Semester 2, 2013
Department of Electrical and
Computer Systems Engineering
eHealth Wireless Patient Monitor
for Hospital Emergency Rooms
Darren McMorran
Supervisors: Jonathan Li, Tuck Wah Ng
Wireless Sensor Devices
Each patient connected to the system has a
wireless sensor device attached to their arm.
These battery powered devices are fitted with
SPO2 and position sensors, which measure the
pulse rate, oxygen saturation level and body
position of the individual. This information is
transmitted using the ZigBee wireless protocol to
the database server.
The eHealth Wireless patient monitoring system is designed to allow remote monitoring of mobile patients, such
as those waiting in a hospital emergency room. The system consists of three main stages: data measurement via
wireless sensor devices, data collection at the database server, and user interface through the website.
The database server receives information via
ZigBee and stores it in a MySQL database. The
web server backbone uses Node.js with
WebSockets to maintain a connection with users
connected by Wi-Fi. This allows real-time data
transfer between users and the database.
Database Server
The eHealth Wireless Website allows users to
log in and monitor any patient connected to the
system in real time. Users can observe patterns
in pulse rate, oxygen level or body position to
determine if patients require immediate
attention. Other features include battery level
indication for sensor devices and the ability to
activate a buzzer built in the device.
eHealth Wireless Website