Cell- -based Architecture for based Architecture for Cell - - PowerPoint PPT Presentation

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Cell- -based Architecture for based Architecture for Cell - - PowerPoint PPT Presentation

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Cell- -based Architecture for based Architecture for Cell Adaptive Wiring Panels: A First Adaptive Wiring Panels: A First Approach Approach Victor Murray 1 1 , Daniel Llamocca 1 1 , Yuebing Jiang 1 1 , Marios Pattichis 1 1 James Lyke 2 2 ,

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SLIDE 1

Cell Cell-

  • based Architecture for

based Architecture for Adaptive Wiring Panels: A First Adaptive Wiring Panels: A First Approach Approach

Victor Murray1

1, Daniel Llamocca1 1, Yuebing Jiang1 1,

Marios Pattichis1

1

James Lyke James Lyke2

2, Stephen Achramowicz

, Stephen Achramowicz2

2, Keith Avery

, Keith Avery2

2 1 1University of New Mexico

University of New Mexico

2 2Air Force Research Laboratory

Air Force Research Laboratory

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SLIDE 2

2

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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SLIDE 3

3

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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SLIDE 4

4

What is a wiring harness?

  • Packaging

hierarchy from transistor to system

  • Wires dominate

the content of electronics in systems

  • Harnesses are

wires that form Level 4 connections

27 April 2011

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SLIDE 5

5

Real World Example – Tacsat 2

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6

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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7

Advantages

  • Dramatic time reduction

– Reduces weeks and months to minutes

  • Flexibility

– Accommodate last minute changes – Fixing errors after the fact

  • Diagnostic enhancement

– Form temporary probes without dismantling system

  • Robustness

– Ability to route around damage – Ability to make self-healing

27 April 2011

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SLIDE 8

8

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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9

Adaptive wiring concept

C B A A B C C B A A B C blank programmed

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10

Segmented (extended) adaptive panel

C B A A B C

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11

Temporary probes can be inserted

C B A A B C V

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Fault management

C B A A B C Faulty connection New good connection

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13

Physical Embodiment

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Placement and routing (two modules)

E D E D

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15

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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SLIDE 16

16

Challenges

  • Bistable / multistable / persistent, low-power
  • Electrical performance

– Low resistance – Bandwidth – High-isolation (low crosstalk)

  • Hot-switching
  • Compact
  • Low-cost

27 April 2011

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17

Wiring Supply / Demand

27 April 2011

Length Quantity Supply (ex.) Demand (OK) Case 1 Demand Case 2 Over‐supply (wasteful) Demand Case 3 (wiring starved, won’t work)

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18

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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19

Simplified Depiction

Unplaced module Placed module Cell Cells Scalable adaptive wirin panel

Cell Management Unit

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“Unit cell”

Displaced unit cell Unit cell Mechanical mounting point Power terminal (pin) Signal terminal (pin)

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“East “ edge Local I2C communications port Routable wiring resources Surface routing termini Cell common I2C port Cell local processing unit “North“ edge “South“ edge “West“ edge Cell – module I2C port

Unit cell details

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22

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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23

Adaptive Wiring Panel with modules

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Interior details of module connections to panel

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Example Wiring Problem

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Cell Implementation

  • Cells are self-contained (5cm x 5cm)
  • Contains local routing (~70 relays)
  • Communicate using six I2C busses

– 4 neighbors (N-E-W-S) (local) – 1 cell-to-module – 1 cell-to-host (global)

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Current Hardware (one cell)

27 April 2011

Top board ( adaptive surface) South cell board

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Cell Management Unit

  • Manages global panel of cells

– Computes connections – Manages cell and modules – Implements dynamic changes

  • Implements wiring harness as netlist
  • Netlist programmed SPICE language
  • Route algorithms
  • Graphical User Interface (GUI) simplifies user

interaction

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Cell management Unit

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Five cells, two modules

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Example Problem

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Graphical User Interface

27 April 2011

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Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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Future Work

  • Increase demo to 64 tiles (8 cells x 8

cells)

  • Development of MEMS switches (90%

reduction in size, weight, and power)

  • Improved hierarchical routing

algorithms

  • Self-healing demonstrations
  • Multi-panel manifold
  • Extension of ideas to three dimensions

27 April 2011

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35

Outline

  • What is a wiring harness?
  • Why would we want to make it reconfigurable

and adaptive?

  • Basic concept of adaptive wiring harness
  • Challenges
  • Cellular architecture for adaptive wiring

harness

  • Current Status
  • Future Work
  • Conclusions

27 April 2011

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36

Conclusions

  • Adaptive wiring can have significant

advantages over fixed designs (speed, flexibility, robustness)

  • Adaptive wiring architecture has been

described

  • Cellular version of adaptive wiring harness

has been designed and partial panel has been demonstrated

  • Within next year a full scale version will be

available for further study

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Acknowledgments

  • Financial support

– AFRL Space Vehicles – Air Force Office of Scientific Research (AFOSR/NE) Discovery Challenge Thrust for Reconfigurable Cellular Electronic/Photonic Arrays (Dr Gernot Pomrenke)

27 April 2011

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