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This is a class presentation on the topic wearable computers. Content and slides were prepared by each individual presenter and combined by me.
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Wearable Computers
Amair MairajAnkush PanditKrutarth MithawallaNick MathewRaman Narayanan
What is a Wearable Computer?
Features of Wearable Computer
Consistency
Multi-tasking
Mobility
A Wearable Computer…
Wearable Computer
Key Properties
Near Transparency Continuously obtain feedback Compared daily Note if something new
Key Properties
Accuracy and Reliability vs. Cost of Operation Accuracy must be high Should be reliable Cost should be low
Key Properties
Secure Communication Privacy Authorization
Analysis Data should be recorded Suggestions to the user
Key Properties
4As Anywhere Anytime Anyone Any device
Challenges
Power use
Heat dissipation
Design and Architecture
Real-Time OS and Distributed System
Features of RTOS Scheduling Power Management Interrupt Handling
Features of DS Resource sharing Control and management
Scheduling
Scheduling Power management in wearable
computers Scheduling and power management
Voltage Scheduling
Proposed Scheduling
VOLTAGE SHIFT TIME NOT TAKEN
VOLTAGE SHIFT TIME TAKEN
Power Management
Why? Limited energy resources
Allow functionality despite scarce energy resources
Reduce power consumption by sharing tasks with other nodes
Solution
Low threshold for migration Distribute when migration occurs
without execution until energy resources fail
In case of catastrophic failures, spare node could restart execution if the hand-off signal never arrives.
Future Work
Implementation of the power management solution
Implementation of the proposed scheduling algorithm
Conclusion
Vast field combines multi-disciplines Future can involve AI & robotics
References
Marculescu, D., Zamora, N. H., Stanley-Marbell, P., and Marculescu, R. 2003. Fault-Tolerant Techniques for Ambient Intelligent Distributed Systems. In Proceedings of the 2003 IEEE/ACM International Conference on Computer-Aided Design (November 09 – 13, 2003). International Conference on Computer Aided Design. IEEE Computer Society, Washington, DC, 348.
Kirovski, D., Oliver, N., Sinclair, M., and Tan, D. 2007. Health-OS:: a position paper. In Proceedings of the 1st ACM SIGMOBILE International Workshop on Systems and Networking Support For Healthcare and Assisted Living Environments (San Juan, Puerto Rico, June 11 – 11, 2007). HealthNet ‘07. ACM, New York, NY, 76-78
Quan, G. and Hu, X. 2001. Energy efficient fixed-priority scheduling for real-time systems on variable voltage processors. In Proceedings of the 38th Conference on Design Automation (Las Vegas, Nevada, United States). DAC ‘01. ACM, New York, NY 828-833.
Gruian, F. 2001. Hard real-time scheduling for low-energy using stochastic data and DVS processors. In Proceedings of the 2001 International Symposium on Low Power Electronics and Design (Huntington Beach, California, United States). ISLPED ‘01. ACM, New York, NY, 46-51.
Starner, T. 2001. The Challenges of Wearable Computing: Part 1. IEEE Micro 21, 4 (Jul. 2001), 44-52.
Questions?
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