Wireless Networking and Sensing Technologies for a Real-Time Remote Health Care System

1
Wireless Networking and Sensing Technologiesfor
a Real-Time Remote Health Care System
Center for Embedded Networked Sensing
David Jea, Sasank Reddy, Ian Yap, Ramkumar
Rengaswamy, Saurabh Ganeriwal, and Mani
Srivastava
Introduction

• Goal
• To build and deploy a system that connects a
  patient and a physician and provide capabilities
  such as (i) obtaining multi-tier diagnosis
  information, (ii) receiving emergency alerts, and
  (iii) enabling on-the-fly remote treatment in a
  reliable and cost-affective manner.
• To make healthcare available to anyone, anytime,
  and anywhere by increasing both the coverage and
  quality of pervasive healthcare.

Topics of Interest Problem/(Solution)
Description

• Body Sensor Network
• Develop on wireless sensor node platform that is
  wearable and reconfigurable. (Mote SOS)
• Build evaluation boards for sensors that are wide
  used in medical applications. (ECG sensor, 3-axis
  Accelerometer)
• Personal Mobile Devices
• The system requires small form factor for
  patients to carry. (8cm?2cm Gumstix platform and
  GUI decoupling)
• Multiple radio interfaces
• Broad coverage and persistant connection. (GPRS)
• Sensor network interaction. (Zigbee)
• Patient graphic operating interface. (Bluetooth)
• Network Support for Mobile Telemedicine
• Medical service servers for data collection and
  analyzing.
• Tunneling servers for connections between
  physicians and patients. (VPN PPP-SSH)
• Security Privacy
• Data Validation, Encryption of Communication,
  Security of Usage, Storage Security.

• Data Processing and Inference Engine
• Multi-resolution data and adaptive data
  collection.
• Classification of medical phenomenon. (Bayesian
  classfier designed by Winston Wu, Alex Bui, et
  al.)
• Web Service Interfaces Standard Messages
• Common web services interface with main
  functionality being a Query and aggregation
  procedure.
• Enable BSN gateway to communicate sensor data
  using a standard format (SOAP XML). BSN gateway
  registers with an entity so clients can easily
  search for potential sources of data.
• Service Discovery
• BSN is able to dynamically discover and add new
  ambient sensors under its control, and the
  services of these sensors can be exported to be
  accessed by external sources.
• Require minimal user intervention and can
  efficiently and reliably register with sensors,
  including those that have proximity requirements
  for access.

System Design

• First-Cut Design

• Current Prototype I

MSS
BSN Body Sensor Networks GWN Gateway Node PID
Patient Interaction Device DID Doctor
Interaction Device MSS Medical Service
Server TS Tunneling Server
TS
Internet
GPRS
GPRS
BSN
GWN
DID
PID
MicaZ
Gumstix
MicaZ
MicaZ
MicaZ
ZigBee
Bluetooth
doctor
patient

• Current Prototype II

• SW Architecture

UCLA UCR Caltech USC CSU JPL UC
Merced