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Green technologies. Is it necessary and useful?. Agenda. What is green technology? Is there a business case for it? What technologies are needed? Some early examples Conclusions. Agenda. What is green technology? Is there a business case for it? What technologies are needed?

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green technologies

Green technologies

Is it necessary and useful?

agenda
Agenda
  • What is green technology?
  • Is there a business case for it?
  • What technologies are needed?
  • Some early examples
  • Conclusions
agenda3
Agenda
  • What is green technology?
  • Is there a business case for it?
  • What technologies are needed?
  • Some early examples
  • Conclusions
green technologies a workman s definition
Green Technologies: A workman’s definition
  • Technologies that consume as little energy and power as possible to deliver a solution
  • Use materials that do not cause pollution to produce
  • Produce no waste or easily disposable waste
  • Scaling does not cause environmental nightmare
  • Technologies that support green solutions
agenda5
Agenda
  • What is green technology?
  • Is there a business case for it?
  • What technologies are needed?
  • Some early examples
  • Conclusions
business 2 0 magazine mar 07
Business 2.0 Magazine Mar’ 07
  • 8 technologies for a green future
    • Environmental Sensor Networks
    • Endangered species tracker
    • The interactive, renewable smart power grid
    • Autonomous ocean robots
    • Home hydrogen fuelling station
    • Toxin-eating trees
    • Nuclear waste neutralizer
    • Sonic water purifier
uiuc coordinated sciences lab
UIUC: Coordinated Sciences Lab
  • The next phase of IT revolution may involve the active interaction with the environment
    • Achieved through the convergence of communication and computation with control (sensing and actuation)
agenda8
Agenda
  • What is green technology?
  • Is there a business case for it?
  • What technologies are needed?
  • Some early examples
  • Conclusions
common denominator
Common denominator
  • Sensor network
    • A few to 10’s of thousands
  • Hybrid networks
    • Ad hoc network for sensor connections
    • Back haul networks
  • Low energy consumption and longevity of network
  • Signal processing
  • Control systems
  • Easy and simple interfaces
  • Low cost
ad hoc networks
Ad hoc networks
  • Wireless networks are formed by nodes with radios
    • There is no a priori notion of “links”
    • Nodes simply radiate energy
  • Nodes can cooperate in many complex ways
ad hoc wireless networks

Interference+Noise

Interference+Noise

Interference+Noise

Ad Hoc Wireless Networks
  • Current proposal for operation: Multi-hop transport
    • Nodes relay packets until they reach their destinations
    • Fully decode packets at each stage treating allinterference as noise
    • Interfering packets destructively collide with each other
multi hop architecture
Multi-hop architecture
  • Nearly optimal
  • For implementation we need
    • Power control
    • MAC
    • Routing
    • Transport
ad hoc sensor network issues
Ad hoc sensor network issues
  • How do we organize them?
    • Distributed Real-time based systems
  • What are the right abstractions?
  • What should be the architecture of the system?
    • Application independent, Context independent architecture

What are the right abstractions?What is the architecture?

the power control problem
The Power Control problem
  • How do we choose power levels of transmissions in wireless networks?
    • Power level influences range
    • Power levels determine interference
    • Power levels affect routes
  • Conceptualization problem for Power Control
more power control problem
More Power Control problem
  • Which Layer?
    • Physical layer
      • Quality of reception
    • Network layer
      • Impact on routing
    • Transport layer
      • Higher power impacts congestion
  • How to fit Power Control in the hierarchical OSI framework?
agenda16
Agenda
  • What is green technology?
  • Is there a business case for it?
  • What technologies are needed?
  • Some early examples
  • Conclusions
a research vehicle example
A research Vehicle example
  • In an Electric or a hybrid vehicle implement various subsystems to
    • Make the vehicle environment aware
    • Manage vehicle navigation
    • Manage power and energy
    • Monitor and actuate remotely
    • Provide infrastructure for networking wirelessly
    • Provide extensive instrumentation for gathering field data from vehicle and environment
    • Allow subsystem selection for a given vertical (application) of the vehicle (like a custom made DELL computer!)
intended applications
Intended applications
  • Research
    • Trying out various WSN, Wifi networks for a variety of applications
      • Delay tolerant networks
      • Data collection
      • Distribution of critical materials (life saving drugs, seeds, ……….)
    • Trying out various DSP for building subsystems
  • Some application domains with rural bias
    • Health care
    • E-services
    • Disaster management
    • Mobile infotainment
    • Agriculture
    • Security: Integration of vehicle and home security
    • Autonomous vehicle
    • ………………….
communication system
Communication System
  • Wifi access point to act as a local hub and connection to a wired LAN
  • Wireless Sensor Network
  • Ability to connect to a high speed LAN, CDMA, GPRS, and dial-up lines
  • FM transmitter
  • AM, FM radio receivers
  • TV tuner
  • DTH TV
environmental sensors
Environmental sensors
  • Weather monitoring system
  • Network presence detectors
  • Digital cameras
  • GPS receiver
  • Smoke and dust detectors
  • Ultrasonic distance measuring device
typical mobile health care vehicle
Typical mobile health care vehicle
  • Integrates
    • ECG
    • Emergency operations
    • Many other functionalities
applications
Applications
  • Mobile healthcare
  • Mobile broadcaster
  • Mobile e-service provider
  • Mobile disaster management
  • Mobile e-post service
  • ……………………………….
agenda25
Agenda
  • What is green technology?
  • Is there a business case for it?
  • What technologies are needed?
  • Some early examples
  • Conclusions
conclusions
Conclusions
  • Green technologies are very important
  • They make a business case
  • WSN, Energy sources….are important technology enablers
  • Many challenges
  • Many exciting applications
thank you

Thank you

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