Wearable Computers Presentation

Amair Mairaj Ankush Pandit Krutarth Mithawalla Nick Mathew Raman Narayanan

Wearable Computers

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  Heat

use

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 

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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 828833. 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.

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