Weapon Systems Open Architecture Overview

Transcription

1 Weapon Systems Open Architecture Overview OMG Real-Time and Embedded Distributed Object Computing Workshop July 24-27, 2000

2 . Vision for Joint Theater Operations Joint Joint Forces Forces Global Global Info Info Grid Grid Challenge is to make this possible! Adapted from The Future of AWACS, by LtCol Joe Chapa Page 2

3 Fighter Information Technology Past and Future Historical approach Information sources primarily constrained to onboard, deterministic resources Functionality limited to static algorithms, cyclic processing, worst case, static scheduling Expensive to maintain and test Future needs Offboard/onboard integration of data and functionality Non-deterministic communication and functionality Lower cost, rapid change, user/mission customization Page 3

4 Evolution of WSOA OSAT 1 OSAT 2 Processor Card 1 (Master) Processor Card 2 (Slave) Ballistics (Ada95) Legacy AV-8B OFP (C) Common NAV & Replicant (C++) Infrastructure/TAO CORBA Ballistics (Ada95) POSIX RTOS AV-8B NAV (C++) Remote OSAT 3 Processing C2 F-15 Collaboration Browsing 1553 Discretes Ethernet RS232 Timers Timers Ethernet QuO VME RT CORBA 1.0 RT ARM Dynamic Scheduling Infrastructure/TAO Component OFP Ballistics (Ada95) AV-8B NAV (C++) Link-16 RT ARM TAO Hard real-time Dynamic Scheduling POSIX RTOS WSOA ASTD ASFD Page 4

5 WSOA Participants Boeing Primary integrator, application development Honeywell Technology Center Resource management technology Washington University Dynamic scheduling technology BBN Quality-of-service framework WSOA merges DARPA, Air Force Research Laboratory, and Boeing technologies to enhance fighter avionics capabilities Page 5

6 WSOA Project Description Page 6

7 WSOA Objectives Demonstrate New Warrior Capability Imagery support for re-tasking Real-time Collaborative planning Demonstrate Legacy Connection to InfoSphere OFP support for deterministic and non-deterministic functions Develop Transitionable Products Quorum-based technologies OFP components, e.g., browser, QoS Middleware Demonstrate Standards Inter-platform communication via CORBA Object Request Broker usage supporting RT CORBA 1.0 Page 7

8 WSOA and Time Critical Targets Real-time Mission Replanning and Collaboration C2 Node and F-15 share data, imagery and annotations Information Browsing F-15 accesses C2 data products, images, target folder Mission Rehearsal F-15 previews mission enroute Time Critical Targets clear and present danger fleeting targets of opportunity Page 8

9 WSOA Operating Environment JTIDS Net Link-16 GIOP Browser Requests Low Volume Imagery Airborne C2 Node Compiles Virtual Target Folder Retasks Enroute Strike Collaboration with Warrior to replan route IDL Interface Warrior Browser Requests for Target and Imagery data Collaboration with C2 Node for Target Review and Mission Replan Previews Updated Mission Enroute IDL Interface Page 9

10 CORBA support for WSOA Existing and Emerging Page 10

11 Language/Platform Interoperability F-15E1 Hard Real-time constraints Embedded PowerPC processor VxWorks RTOS C++ with Ada 95 segments Soft Real-time 737 AFL DEC Alpha Workstation Unix OS Ada 95 Page 11

12 Real-time Determinism RT CORBA 1.0 Minimize priority inversion of distributed operations Priority banded connections Direct threading selection and prioritization Real-time Event Channel Hard real-time scheduling support Page 12

13 Enabling CORBA Features Commercial Standard Interoperate ORBs from different vendors Push / Pull data flow Client controlled image requests minimize bandwidth & operator workload Asynchronous Method Invocations (AMI) De-couple F15E application processing from C2 server Page 13

14 Emerging CORBA Capability: Hybrid Static and Dynamic Scheduling Allow insertion of soft real-time tasks while preserving hard real-time semantics Maximize CPU utilization through on-line re-evaluation of task priorities Being addressed by RT CORBA 2.0 Page 14

15 Emerging CORBA Capability: Extensible Transport Protocols GIOP between F-15E and C2 node must operate over pluggable Link-16 transport Native ORB transport Pluggable ORB transport IIOP IOP TCP/IP GIOP IOP Link - 16 GIOP Many vendors currently provide proprietary transport interface Future CORBA specification will standardize this Page 15

16 Additional Challenges and Middleware Technologies Page 16

17 Resource Management Operational Goal Situational tailoring of functional priorities Technology Challenge Develop real-time management of network and computing resources, supporting hard and soft deadlines Development Approach Develop functional adaptation techniques control flow management, resource sensitive applications Develop mission management expression semantics Page 17

18 Quality of Service Frameworks Operational Goal Interface shooter systems to global information sources to ensure information superiority Joint Joint Forces Forces Global Global Info Info Grid Grid Technology Challenge Integrate hard and soft real-time data and control flow functionality within mission system frameworks Development Approach Embed QoS functions into application frameworks with common APIs and pluggable policies Mature QoS dependency expression to API level interfaces Page 18

19 OSA C3I Simulation Collaboration Server QoS Management WSOA Architecture C2 F-15 VTF VTF Mgr Application Delegate Collaboration Client Browser Application Progress Contract JTIDS Net RM ORBexpress (Ground demo only) TAO ORB RTARM TAO Adaptive Scheduler Link-16 Simulation Software DIS Network Tool Link-16 Simulation Software DIS Network Tool Boeing BBN Oregon Graduate Institute Washington University HTC Page 19

20 WSOA QoS Control Flow Q QuO S Contraction, Expansion Manages application progress Early, On-Time, or Late for each operation Defines operating regions Range of rates for each operation Early Normal On Time Normal CPU Degraded Late Normal CPU Degraded RT-ARM Q S Feedback Adaptation Manages QoS parameters within the given operating regions Adjust rates within defined ranges for each operation Reports when operating region is violated (or will be violated) System Resource Manager Processor Resource Manager Page 20

21 WSOA QoS Control Flow (cont d) RT-ARM Adjusts current available dispatch rate ranges for each operation Provides admission control policy Queries TAO Scheduler for monitored execution time results Processor Resource Manager TAO Scheduler Binds specific rate according to RT- ARM supplied admission control policy Queues operations and enforces hybrid static/dynamic scheduling policy Makes available to RT-ARM the actual execution times of each scheduled operation TAO Scheduler Page 21

22 Summary Page 22

23 WSOA End-to-End QoS Management C2 F-15 OSA C3I Simulation Collaboration Server VTF Adjust expected QoS Collaboration Client Browser Application C2 QoS Mgmt Adaptive behavior to update compression level of next tile Adaptive behavior to update operating region Application Delegate Progress Contract ORBexpress TAO ORB Net RM Optimization within current operating region Criticality assurance, then utilization optimization RTARM TAO Adaptive Scheduler Link-16 Simulation Software Link-16 Simulation Software DIS Network Tool DIS Network Tool Page 23