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U.S. Department of Transportation
Dynamic
Interrogative Data Capture (DIDC)
§Each device (in a vehicle, on the infrastructure, or
on a person) can set and
reset message priorities to different data elements
§Each device can intelligently and dynamically decide on data aggregation levels and transmission frequencies, based on its own state (local conditions)
as well as the state of the
network (global conditions)
§Each device can query other devices in its vicinity, depending on its data needs, and request certain data aggregation levels
Wireless Sensor Networks (WSNs):
Adaptive management of
data flow in complex systems
Mote
Technology
Example WSN Topologies
Example of DIDC Concept
§Value to
DCM: Can cut
communications and energy costs up to 99% compared with fixed interval approaches -- with same
impact (defense applications)
§Challenges:
Adapting and structuring an analog system for transportation, determining potential benefits