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ICT Strategy
Intelligent Highways: The right data at the right place at the right
time – all the time.
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Traffic Management• With increasing
demand for travel, more and more road networks are experiencing Traffic Congestion.
• In many cases this could be reduced if more real-time information was available to traffic engineers and drivers.
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Intelligent Highways
• Intelligent Satellite Navigation re-routing.
• Automotive developments: Lane Keeping Assist, Adaptive Cruise Control .
• Cooperative Vehicle Highways Systems (CVHS) will emerge in the next decade.
• eCall services – activate on impact with airbag systems.
• Collision avoidance warnings.
• VMS on the dashboard with optional voice synthesis.
• High Occupancy Vehicle lanes, e-Tolls (Road User Charging).
• Growth in road-side and on-road devices and associated data volumes.
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Drivers for change
• Shared Operational Picture• Increasing need for real-time access to a common
operational picture.
• Increased Data Volumes• Real-time dissemination of massive data volumes, often on
a large scale.
• Loosely coupled, Plug & Play• Need to cope with emerging ITS demands such as CVHS.
• Interoperability• Need to share information end-to-end, in the new emerging
System of Systems.
• Interoperability is a key enabler to meeting new demands.
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Life at the Edge: Traffic Management Example
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The Gap:Differing Requirements
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Data Distribution:Middleware choices
• Really only three choices:• Use proprietary middleware
• MQ Series, Tibco, BEA
• Java Messaging Service (JMS)• Standards-based
• Popular in the “Enterprise” domain
• API only, no wire interoperability
• Data Distribution Service (DDS)• Standards-based
• Popular in the “Edge” domain
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DDS Applicability
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Global Data Space –Publish & Subscribe
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DDS Class Diagram
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The Real-Time Enterprise Service Bus
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DDS Benefits• OMG standard - Established since 2003
• Fully distributed, Peer-to-peer, Fault tolerant
• Quality of Service (QoS) per data flow
• Plug and Play Architecture with dynamic discovery
• Wire protocol standard (RTPS)
• Designed for unreliable transports like UDP and wireless networks
• Scalable, high performance, low latency - 10x faster than JMS
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References – next steps
• “Using DDS to Enable The Real-Time Enterprise Service Bus (RT-ESB)”, Rajive Joshi, Ph. D., Gerardo Pardo-Castellote, Ph.D., Real-Time Innovations, Inc.
• “OpenSplice DDS in Transportation”, Dr. Angelo Corsaro, PrismTech Ltd.OMG's Data Distribution Service Standard: An overview for real-time systems” Rajive Joshi and Gerardo Pardo-Castellote, Dr Dobbs Journal, November 20, 2006.
• OMG Data Distribution Portal
• Next steps: validate with the Market/Industry.