DAP-1

1
DARPA Sensor IT Workshop
Navy Surface Combatant Sensor Network Challenges
Dave Phillips 7 October 1999
2
Technology Requirements Driven By New Ship
Development Program Objectives

• Highly Capable, Multi-mission
• Affordable
• Survivable
• Reliable
• Maintainable Sustainable
• Interoperable
• Flexible
• Upgradeable
• Maintain High Quality of Life for the Crew
• Environmentally Friendly

3
Why Do We Need Networked Sensors?

• Need to Answer the Questions
• Is everything OK?
• What is happening?
• Are my corrective actions working?
• Will equipment fail before mission completion?
• Typical Measurements Needed in Ship Spaces
  (machinery and open space)
• Temperature
• Smoke/Gases
• Water/Fluids
• Noise
• Light/RF

• Vibration/Shock
• Stress/Strain
• Movement
• Others

4
Networked Sensor Vision

• Many Sensors Within Space
• Wireless Connections with Access Point on
  Shipwide LAN
• Tied to Actuators
• Smart
• Replicated in Each Space

5
Affordability Challenges

• Non-Recurring Engineering Minimized
• Leverage COTS and commercial system development
• Low Recurring Costs
• Thousands of sensors per ship
• Inexpensive sensors, processing units
• Easy to install/ remove
• Minimal or no wiring
• Low Operating and Support Costs
• No maintenance (e.g., battery replacement)
• Automatic test and calibration

6
Survivability Challenges

• Sensors Must Survive
• Normal ship environment
• Catastrophic events when data is most needed to
  assess and monitor space or machinery
• Fire
• Flood
• Explosion
• Willing to Trade Reliability Against Cost
  Provided Redundancy and Coverage Can Be
  Accomplished at Higher Level

• Shock
• Others

7
Other Challenges

• Scaleable
• Architecture must accommodate few to many sensors
• Open
• Sensors should connect to network using open
  standards
• Upgradeable
• Sensors should be easily upgraded as sensor
  technology evolves
• Environmentally Friendly
• Safe in normal and during catastrophic events

8
Summary

• Many Challenges to Networked Sensors in Surface
  Ships
• Other Platforms Have Similar Challenges
• Cost is Challenge Number One
• Have a Very Successful Workshop!