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Speckled Computing: An Overview www'specknet'org

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Title: Speckled Computing: An Overview www'specknet'org


1
Speckled Computing An Overview(www.specknet.org)
  • D.K. Arvind
  • Institute for Computing Systems Architecture
  • School of Informatics, University of Edinburgh
  • (dka_at_inf.ed.ac.uk)

2nd Speckled Computing Workshop 2-3 Sept. 2004
2
To realise programmable semiconductor specks
which can sense, compute, and network wirelessly.
  • All specks communicate wirelessly (via radio or
    laser)
  • Each speck has limited range of wireless
    communication (few cms)
  • Each speck has limited size (lt 5X5 mm) and
    limited power
  • No control over the density, size/type of the
    surface applied, possible interferences/stability,
    specks placement

3
Specks, Specknets and Speckled Computing
  • Each autonomous speck with renewable power
    source
  • Thousands of specks collaborate as a
    programmable computational network the specknet
  • Sensory data is processed collaboratively and
    information extracted in situ - fine-grained
    distributed computation
  • Encapsulation of sensing, processing and wireless
    networking generic technology for pervasive
    computing

4
Specknet the first (last) millimeter of the WWW
  • Speckled Computing in Healthcare remote
    monitoring of CHD patients in collaboration with
    clinicians at Western General Hospital
  • Tangible Interfaces for Digital Media objects
    sprayed with specks or speckled are sensitised
    post hoc both as computational resources and as
    props for interactions with the computational
    resources
  • Specknets for Safety Applications in homes,
    offices (distributed fire alarm) and automobiles
    (smart air bags, driver workload monitoring, auto
    blackbox)

5
Multidisciplinary consortium
Programmable Networks
Demonstrators
Radio
Distributed Computing
Photonics
Solar Cells
Processor
Sensors
Digital Signal Processing
6
Overview
Programming Environment (C9)
Demonstrators (C10)
SPECKNET ARCHITECTURE
Networking Protocols (C8)
Distributed Computing Harness (C7)
Physical Layer Communications (C6)
Photonics (C1)

Processor (C3)
Radio (C2)
Energy Source (C4)
7
  • Quarter credit-card sized prototype to provide a
    rapid development platform for networking,
    programming and application RD in Speckled
    Computing

8
ProSpeckz - Programmable Speck over Zigbee Radio
  • Overall System View for ProSpeckz

PSoC
Application
Lightweight RTOS
Specknet Network Protocol
Specknet MAC
802.15.4 Radio
ProSpeckz Hardware
ProSpeckz Firmware/Software
9
ProSpeckz II - Specifications
  • Single quarter-credit-cardsized board.
  • Cypress CY8C2764 PSoC 8-bit12MHz
    microcontroller with256 bytes RAM, 16K Flash,12
    analogue and 8 digitalprogrammable peripheral
    blocks.
  • Chipcon CC2420 2.4GHz, IEEE 802.15.4 RF
    transceiver, providing 250kbps data rate with
    programmable power output, 16 available channels.
  • Runs from 3V lithium button cell or 3.6V Varta
    Mempac, with power consumption between 300?A
    (deep sleep) and 24.5mA (PSoC active radio
    receiving).

10
ProSpeckz II Existing Applications
  • Distributed fire safety system
  • Proximity-aware speaking objects/toys
  • Museum visitor movement and interaction tracking
  • Autonomous control of small vehicles
  • Relative position detection in 2D plane
  • Smart Jewellery

11
ProSpeckz III Stackable Design
  • ProSpeckz III Components
  • Sensor board Cypress CY8C2764 PSoC, sensors for
    light/sound/temperature and expansion ports.
  • Radio board Chipcon CC2420 2.4GHz IEEE 802.15.4
    RF transceiver and antenna.
  • CPU board 60MHz Atmel AT91 with ARM7TDMI core,
    256KB on-board SRAM and 2MB Flash.
  • Memory board 2MB additional SRAM and
    SecureDigital card interface.
  • FPGA board Xilinx XC3S200 Spartan-III (200k
    gates), with 8-bit ADC/DAC and daughterboard
    connection for prototype RF circuits.
  • Power board (not shown) provides 3V and 1.8V
    supplies from one or two 3V lithium button cells
    or 3.6V Varta Mempac, or runs and charges from
    external DC power.

12
ProSpeckz 3 The Stackable Platform
  • A stackable and inter-changeable development
    platform that provides developers the ability to
    customise individual units of the ProSpeckz 3
  • Provides wireless communications via Zigbee
    radio.
  • On-board antenna that allow ranges from 30cm to
    20m
  • A 60Mhz processing core of the ProSpeckz 3
  • ARM 7 CPU with 2Mb of Flash and 256Kb of RAM
  • Provides additional storage for the ProSpeckz 3
  • 2Mb of SRAM and an interface to an SD card
  • Provides sensory capabilities to the ProSpeckz 3
  • Onboard temperature/light/sound sensor and PSoC
  • Provides the ability to develop soft processors /
    baseband
  • Xilinx Spartan with 200k gates
  • Allows the ProSpeckz 3 to be powered by lithium
    coin cells

Radio Board
CPU Board
Memory Board
Sensor Board
FPGA Board
Power Board
  • Each unit above can be mixed-and matched into a
    hardware stack to provide for a unique
    development platform for the various layers.

13
Status
  • 4-year, 1.32M SHEFC Research Development Grant,
    start-date Oct. 2003
  • Shortlisted for 2.96 M EPSRC Basic Technology
    Research Programme Dec. 2004
  • 1st Workshop Jan. 04 2nd Workshop Sep. 2-3
    04
  • Research Advisory Board and Consortium Agreement
  • Industrial Partnership Programme
  • Appointed Mrs Charmaine Wilson Admin Secretary
  • 10 PhD students, 2 RAs in place
  • 6 PhD students, 2 RAs to be appointed in Q4 2004

14
Model for Collaboration
  • Industrial Partnership Programme
  • Beyond the envelope research
  • Pre-competitive several industrial partners
  • Financial support for PhD studentships
  • Equipment grant
  • Body swap Internships, Secondment, Sabbatical
  • Industrial Affiliate Programme
  • Annual subscription
  • White papers, biannual workshops
  • Interested? Email dka_at_inf.ed.ac.uk
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