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ICT Strategy

ICT Strategy. Intelligent Highways: Endpoint Adapters. Agenda. Intelligent Highways Roadside Devices Service-Oriented Device Architecture The OSGi Service Platform Device Management SODA Tools Streaming Services The Real-Time Enterprise Service Bus. Intelligent Highways.

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ICT Strategy

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  1. ICT Strategy Intelligent Highways: Endpoint Adapters

  2. Agenda • Intelligent Highways • Roadside Devices • Service-Oriented Device Architecture • The OSGi Service Platform • Device Management • SODA Tools • Streaming Services • The Real-Time Enterprise Service Bus

  3. Intelligent Highways Increasing amounts and sophistication now and in the future… …More devices (IPv6) …More data …in Real-Time…. “The right data at the right place at the right time – all the time”.

  4. Roadside Devices • Signs and Signals • Sensors: • Inductive loops • ANPR • Weather • DSRC (e-Toll) • Past, present and future • Multi-vendor • V2I/I2V

  5. Service-Oriented Device Architecture When modelled as services, device access and control can be made available to a wide range of enterprise application software using service-oriented architecture mechanisms.

  6. SODA Architecture • In this model, responsibility for encapsulating services can be appropriately shifted to the suppliers who know them: • One side deals with their device specific connections and protocol • Other side deals with network interfaces needed to pump the data over a streaming protocol. • A standard specified service can have a wide variety of underlying hardware, firmware, software and networking implementations.

  7. SODA Adapters

  8. Adapter Layers • SOA binding (Bus Adapter) layer • Handles the session level protocols for connecting and registering the device to an ESB • Marshalling and un-marshalling • Device layer • Provides the meaningful input (commands), output (signals) and state (measurements) for the device • Transport layer • Converts between bytes and more meaningful objects or messages • Initiates connection to the device • Connection layer • Sends and receives bytes • Handles the connection to the hardware via RS485 (legacy), Ethernet, etc.

  9. SODA Objectives • To insulate SOA from device interfaces and proprietary vendor implementations. • To facilitate integration. • To accelerate and focus the convergence of technologies through a combination of: • Standards • Open source software • Reference implementations • Partners and community building …to achieve these objectives it builds upon the OSGi Service Platform…

  10. OSGi(Formerly known as the Open Services Gateway initiative) • The OSGi Service Platform spans: • Digital mobile phones • Vehicles • Telematics • Embedded appliances • Residential gateways • Industrial computers • Desktop PCs • High-end servers

  11. OSGi Architecture The framework is conceptually divided into the following areas: • Bundles - Bundles are normal jar components with extra manifest headers. • Services - The services layer connects bundles in a dynamic way by offering a publish-find-bind model for Plain Old Java objects(POJO). • Services Registry - The API for management services (ServiceRegistration, ServiceTracker and ServiceReference). • Life-Cycle - The API for life cycle management (install, start, stop, update, and uninstall bundles). • Modules - The layer that defines encapsulation and declaration of dependencies (how a bundle can import and export code). • Security - The layer that handles the security aspects by limiting bundle functionality to pre-defined capabilities. • Execution Environment - Defines what methods and classes are available in a specific platform.

  12. Transport Example:Global System for Telematics • GST Open Systems Implementation Guide • Building Blocks for a Global System for Telematics • Builds on OSGi Service Platform • Runs on Java Virtual Machine

  13. Device Management • OSGi Network Management is protocol agnostic.

  14. SNMP Support The SNMP Package provides an implementation of the SNMP protocol and acts as a bridge between SNMP entities and the OSGi framework plus OSGi services running on top. Its purpose is to manage the OSGi platform through SNMP.

  15. SODA Device Kit • Modeling Driven Design (MDD) • Control Markup Language (CML) • Auto-generate OSGi code for all four layers of the device adapter • Contains more than 200 plug-ins for design time and runtime

  16. Streaming services • The real world never shuts up!!! • Sensors and actuators do not match an HTTP request-response model. • Data must be streaming. • Enterprise Service Bus (ESB) streaming protocols include: • Proprietary Message-Oriented Middleware (MoM). • Java Messaging Service (JMS) for Java-centric busses. • Extensible Messaging and Presence Protocol (XMPP) for low-band device data. • Real-time Transport Protocol (RTP) for broadband device data. • OMG Data Distribution Service (DDS) for mission-critical data.

  17. The Real-Time Enterprise Service Bus

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