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A presentation by Andrew Thomas and Venkatesh Vijay to students on "Research and GreenICT" at the European Programme for Sustainable ICT in Academic Education (EPSIAE) conference, Birmingham City University, Birmingham, UK, April 8, 2013. They seemed to like it :-)
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Dr. Andrew Thomas and Venkatesh Vijay
BCU/TEE, April 2013
Research and GreenICT
What are we going to do?
This is what we hope to cover in 1½ hours:
• An introduction to sensors and their uses.
• Some demos of sensors and graphics.
• A talk about being ‘green’ in research.
• A tour of the TEE/BCU workshop.
What are we going to do?
This is what we hope to cover in 1½ hours:
• An introduction to sensors and their uses.
• Some demos of sensors and graphics.
• A talk about being ‘green’ in research.
• A tour of the TEE/BCU workshop.
What are we going to do?
This is what we hope to cover in 1½ hours:
• An introduction to sensors and their uses.
• Some demos of sensors and graphics.
• A talk about being ‘green’ in research.
• A tour of the TEE/BCU workshop.
What are we going to do?
This is what we hope to cover in 1½ hours:
• An introduction to sensors and their uses.
• Some demos of sensors and graphics.
• A talk about being ‘green’ in research.
• A tour of the TEE/BCU workshop.
Sensors for intelligent environments
Environment sensing
Gait (walking)
Home power use
Physiological
Ubiquitous sensing
Plains, trains and automobiles
Robots and avatars
Augmented and virtual reality
Some practical demonstrations
And now for thirty minutes of demonstrations:
• A virtual laboratory prototype based on 3D parametric graphics.
• A 3D instruction manual using RFID, based on a ‘thingyverse’ model.
• A few robots and a sensor visualization.
What about Watts?
Some insights into power and research
One Watt is simply use of one Joule of energy by a circuit, per second. A kiloWatt hour is therefore (Watts*hours)/1000. Watts can be calculated as:
Note: A Joule is the amount of energy used when one ampere is passed through a one ohm resistance for one second.
W = V IPower (Watts)
Voltage (Volts)
Current (Amps)
Watt’s power all about?
That tells us three things we can change to improve power consumption:
How does that help GreenICT?
That tells us three things we can change to improve power consumption:
How does that help GreenICT?
Volts
That tells us three things we can change to improve power consumption:
How does that help GreenICT?
Volts
Amps
That tells us three things we can change to improve power consumption:
How does that help GreenICT?
Volts
Amps Time
Varying voltage requirements
Prototyping low‐power sensors
How guilty should we feel?
How green is rapid prototyping?
To give you an idea of how much power 3D printing uses, we made this plastic tag for you. Some stats:
• It weighs c.8g and uses c.10g of plastic to make.• Each one uses c.1MJ of 3D printer power.• The plastic embodied energy is c.0.83MJ.• A plastic carrier bag embodied energy: 0.5MJ.• For comparison: 1kWh is equivalent to 3.6MJ.
Does everyone need to reduce power consumption?
A different view
A different view
What is sustainable power use?Po
wer
Rich Poor
What is sustainable power use?Po
wer
Rich Poor
Sensible consumption
What is sustainable power use?Po
wer
Rich Poor
Sensible consumption
How?
What is sustainable power use?Po
wer
Rich Poor
Sensible consumption
How?
What is sustainable power use?Po
wer
Rich Poor
Sensible consumption
How?
Power and learning
• A 10W solar panel costs c.£50 in UK
• Low power devices:
Raspberry pi
Tablet (Android, iPad, etc.)
•Green Learning:
220 million Android tablets given to rural Indian students!
Power and learning
• A 10W solar panel costs c.£50 in UK
• Low power devices:
Raspberry pi
Tablet (Android, iPad, etc.)
•Green Learning:
220 million Android tablets given to rural Indian students!
Power and learning
• A 10W solar panel costs c.£50 in UK
• Low power devices:
Raspberry pi
Tablet (Android, iPad, etc.)
•Green Learning:
220 million Android tablets given to rural Indian students!
Conclusions
• Being ‘green’ is largely a matter of making the right choices, but sometimes the right choice isn’t the most obvious one.
• It can include using mobile devices and other low‐power systems, rather than power hungry PCs, where appropriate.
• Turning things off when not in use saves power, whether sensors or peripherals (e.g. PC displays).
Conclusions
• Being ‘green’ is largely a matter of making the right choices, but sometimes the right choice isn’t the most obvious one.
• It can include using mobile devices and other low‐power systems, rather than power hungry PCs, where appropriate.
• Turning things off when not in use saves power, whether sensors or peripherals (e.g. PC displays).
Conclusions
• Being ‘green’ is largely a matter of making the right choices, but sometimes the right choice isn’t the most obvious one.
• It can include using mobile devices and other low‐power systems, rather than power hungry PCs, where appropriate.
• Turning things off when not in use saves power, whether sensors or peripherals (e.g. PC displays).
Conclusions
• Careful design of sensors and systems can significantly reduce power use and extend operating times.
• So, if we act sensibly we canmove toward GreenICT in research…
• … which means we won’t have to feel so guilty about our environmental footprint
Conclusions
• Careful design of sensors and systems can significantly reduce power use and extend operating times.
• So, if we act sensibly we can move toward GreenICT in research…
• … which means we won’t have to feel so guilty about our environmental footprint
Conclusions
• Careful design of sensors and systems can significantly reduce power use and extend operating times.
• So, if we act sensibly we canmove toward GreenICT in research…
• … which means we won’t have to feel so guilty about our environmental footprint
The end
Any questions?
Thanks for listening