TeleDoc
All work Copyright © (2009)
by
The Quality of Life Technology Laboratory
Version # 1.00
Mission Statement
The Quality of Life Technology Laboratory is an interdisciplinary research lab focused on
developing innovative technology and systems that improve quality of life of the elderly
people.
TeleDoc is a web based health care frame work developed at The Quality of Life
Technology Laboratory for maintaining a high quality of life by monitoring vital signs and
providing a highly reliable remotely monitored health care system.
Our mission is to develop technology that will:
1. Increase quality of life as people age
2. Decrease health-care costs
3. Be applicable to war veterans
Teledoc Overview
TeleDoc is a web based framework where the doctor can remotely perform a
thorough examination of his patients who can be located anywhere in the world. The
tool provides a simple and an easy to use console where all the vital signs of the patient
can be measured from a single web page.
Teledoc framework facilitates live interactions between the doctor and patient
by providing a high resolution audio - video interface. For detailed examination of the
patient, the doctor can remotely pan, tilt and zoom by which he can precisely examine
the specific areas. The doctor also has access to a map where the patient’s is location is
plotted. Over the map the doctor can easily locate pharmacy / hospital nearest to the
patient and prescribe medication at real time.
The body sensors for measuring the patient’s vital signs, Bluetooth enabled to
aid ease of access and mobility. The sensors thus connect wirelessly to a gateway
through which the data is sent to the server for processing. All patients’ records are
transmitted through TLS connections and stored on a HIPAA compliant and FIPS certified
Highly Available server.
Block Diagram
Doctor Console
EKG monitor
Blood Pressure monitor
Glucometer
Internet
Gateway
Devices
Connected
Via Bluetooth
Pulse Oxymeter
Firewall for
Internet
HIPAA
Compliant
System
Peak Flow Meter
Weighing Scale
Stethoscope
Patient side
Web, DB &
Video Server
Web, DB &
Video Server
Analytics
Following is the block diagram showing the list of the body sensors which measure the
vital signs and the HIPAA compliant cluster used to store the medical records. All
connections to the system are passed through a customized firewall to prevent
undesired access to the system.
System overview
Registration process
The Patient connects to the TeleDoc web portal and registers for an account. As part of
the registration all the user credentials are accepted and the user is added to the
database. Upon completion of the registration the TeleDoc Patient Software (TPS)
module is downloaded on to the patient’s computer. TPS is responsible for encrypting
control and medical data sent / received.
Patient side
 The user starts the session with TeleDoc by clicking on the TPS software which
invokes a web based connection to HA cluster.
 The TPS connects to each of servers as part of the HA cluster and
examines the load on each system. Once the optimal server it chosen,
TPS invokes a web based connection to that server.

The user is prompted with a login screen where the user enters his
credentials and the patient logs in.
Doctor side
 The doctor connects to Teledoc server through a web based interface and
interacts with patients
 When a vital signs need to be measured the doctor sends a command to
the server
 The server requests the reading from the TPS software on the client side
(patient)
 Patient communicates with the Bluetooth sensors and passes the value
to the server
 Server processes it and sends the result to doctor and patient console.
Control Flow Diagram
Doctor
Server
Patient
Connect_to_server()
Connect_to_server()
Send patient id
Send Doctor id
get_vital_signs()
get_vital_signs()
Bluetooth
Sensors
Send value
Process
Data
Display Result
Display Result