This thesis studies the problem of balancing power and performance in mobile computers, specifically, trading off power for performance by CPU speed-setting. The traditional approach to power-performance trade-offs assumes that batteries... more
This thesis studies the problem of balancing power and performance in mobile computers, specifically, trading off power for performance by CPU speed-setting. The traditional approach to power-performance trade-offs assumes that batteries and memory ...
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Research Interests:
Much has changed in the landscape of wearables research since the first International Symposium on Wearable Computers (ISWC) was organized in 1997. The authors, many of whom were active in this community since the beginning, reflect now... more
Much has changed in the landscape of wearables research since the first International Symposium on Wearable Computers (ISWC) was organized in 1997. The authors, many of whom were active in this community since the beginning, reflect now 25 years later on the role of the conference, emerging research methods, the devices, and ideas that have stood the test of time—such as fitness/health sensors or augmented reality devices—as well as the ones that can be expected still to come, like everyday head-worn displays.
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This workshop will provide a forum to discuss the role of design in wearable computing. Wearable computing spans a broad range of interests and expertise, not all of which can be adequately represented by a technical paper in an IEEE... more
This workshop will provide a forum to discuss the role of design in wearable computing. Wearable computing spans a broad range of interests and expertise, not all of which can be adequately represented by a technical paper in an IEEE Computer Society proceedings. As wearable computing becomes more mainstream and if it is to continue becoming more mainstream, it is
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Upper limb mobility impairments affect individuals at all life stages. Exoskeletons can assist in rehabilitation as well as performing Activities of Daily Living (ADL). Most commercial assistive devices still rely on rigid robotics with... more
Upper limb mobility impairments affect individuals at all life stages. Exoskeletons can assist in rehabilitation as well as performing Activities of Daily Living (ADL). Most commercial assistive devices still rely on rigid robotics with constrained biomechanical degrees of freedom that may even increase user exertion. Therefore, this paper discusses the iterative design and development of a novel hybrid pneumatic actuation and Shape Memory Alloy (SMA) based wearable soft exoskeleton to assist in shoulder abduction and horizontal flexion/extension movements, with integrated soft strain sensing to track shoulder joint motion. The garment development was done in two stages which involved creating (1) SMA actuators integrated with soft sensing, and (2) integrating pneumatic actuation. The final soft exoskeleton design was developed based on the insights gained from two prior prototypes in terms of wearability, usability, comfort, and functional specifications (i.e., placement and number) of the sensors and actuators. The final exoskeleton is a modular, multilayer garment which uses a hybrid and customizable actuation strategy (SMA and inflatable pneumatic bladder).
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... A system-level approach, one that considers power consumers and power sources, is the proper method for examining energy-efficiency in battery-power computing systems. 5. Acknowledgements ... 1997 DAC, June 1997, pp. 313-314. [6] C.... more
... A system-level approach, one that considers power consumers and power sources, is the proper method for examining energy-efficiency in battery-power computing systems. 5. Acknowledgements ... 1997 DAC, June 1997, pp. 313-314. [6] C. Amon, A. Smailagic, et.al. ...
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Research Interests: Computer Architecture, Cancer, Pervasive Computing, Cryptography, Mobile Computing, and 15 morePower System Protection, Battery, Sleep Deprivation, PerCom, Wearable computers, Power Consumption, Sleep, Mobile Device, Mobile Devices, Denial of Service, Mobile Computer, Security Architecture, Message Authentication, Denial of Service Attack, and Denial of Service Attacks
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Electronic textiles (e-textiles) offer the promise of home health care devices that integrate seamlessly into the wearer's everyday lifestyle while providing a higher level of functionality than current devices. Existing gait analysis... more
Electronic textiles (e-textiles) offer the promise of home health care devices that integrate seamlessly into the wearer's everyday lifestyle while providing a higher level of functionality than current devices. Existing gait analysis systems are cumbersome laboratory-based systems that, while providing valuable information, would be difficult or impossible to deploy in the home. Yet gait analysis systems offer the promise of preventing and/or mitigating the serious effects of falls in the elderly population. This paper proposes an e-textile solution to this problem along with a design approach for realizing a solution that is inexpensive and usable across the elderly population. Preliminary results are given to demonstrate the promise of the proposed system.
Research Interests: Computer Science, Textiles, Motion Analysis, Telemedicine, Medicine, and 13 moreLibrary and Information Studies, Gait, Humans, Gait Analysis, Clothing, Textile, Aged, Public health systems and services research, Cost Benefit Analysis, Reproducibility of Results, Ambulatory BP monitoring, Home Health Care, and Biomechanical Phenomena
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Wearable technology has the potential to revolutionize the way humans interact with one another, with information, and with the electronic systems that surround them. This change can already be seen in the dramatic increase in the... more
Wearable technology has the potential to revolutionize the way humans interact with one another, with information, and with the electronic systems that surround them. This change can already be seen in the dramatic increase in the availability and use of wearable health and activity monitors. These devices continuously monitor the wearer using on-body sensors and wireless communication. They provide feedback that can be used to improve physical health and performance. Smart watches and head mounted displays are also receiving a great deal of commercial attention, providing immediate access to information via graphical displays, as well as additional sensing features. For the purposes of the Wearable Technology CLUSTER, wearable technology is broadly defined as any electronic sensing, human interfaces, computing, or communication that is mounted on the body. Current commercially available wearable devices primarily house electronics in rigid packaging to provide protection from flexing, moisture, and other contaminants. NASA mentors are interested in this approach, but are also interested in direct integration of electronics into clothing to enable more comfortable systems. For human spaceflight, wearable technology holds a great deal of promise for significantly improving safety, efficiency, autonomy, and research capacity for the crew in space and support personnel on the ground. Specific capabilities of interest include: Continuous biomedical monitoring for research and detection of health problems. Environmental monitoring for individual exposure assessments and alarms. Activity monitoring for responsive robotics and environments. Multi-modal caution and warning using tactile, auditory, and visual alarms. Wireless, hands-free, on-demand voice communication. Mobile, on-demand access to space vehicle and robotic displays and controls. Many technical challenges must be overcome to realize these wearable technology applications. For example, to make a wearable device that is both functional and comfortable for long duration wear, developers must strive to reduce electronic mass and volume while also addressing constraints imposed by the body attachment method. Depending on the application, the device must be placed in a location that the user can see and reach, and that provides the appropriate access to air and the wearer's skin. Limited power is available from body-worn batteries and heat must be managed to prevent discomfort. If the clothing is to be washed, there are additional durability and washability hurdles that traditional electronics are not designed to address. Finally, each specific capability has unique technical challenges that will likely require unique solutions. In addition to the technical challenges, development of wearable devices is made more difficult by the diversity of skills required and the historic lack of collaboration across domains. Wearable technology development requires expertise in textiles engineering, apparel design, software and computer engineering, electronic design and manufacturing, human factors engineering, and application-specific fields such as acoustics, medical devices, and sensing. Knowledge from each of these domains must be integrated to create functional and comfortable devices. For this reason, the diversity of knowledge and experience represented in the Wearable Technology is critical to overcoming the fundamental challenges in the field.
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Research Interests: Mechanical Engineering, Computer Science, Industrial Design, Engineering Design, Energy Consumption, and 15 moreAccess To Information, Optimization, Iterative Design, Design Methodology, Mechanical systems, Energy Storage, Wearable Computer, Product Life Cycle, Human Computer Interface, Lower Bound, Input Output, INFORMATION ACQUISITION, User Interaction, Electrical and Computer Engineering, and Personal Computer (PC)
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ABSTRACT
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ABSTRACT Health monitoring applications often require that the patient maintain a diary of activities so that the physiological data can be correlated to what the user was doing. However, patients are notoriously bad at self-reporting.... more
ABSTRACT Health monitoring applications often require that the patient maintain a diary of activities so that the physiological data can be correlated to what the user was doing. However, patients are notoriously bad at self-reporting. Consequently, it would be beneficial to automatically generate an activity diary. This paper presents a proof-of-concept prototype electronic textile system for recording both physiological data and context information. It also presents some of the issues that arise in the design and use of a health monitoring and activity annotation system
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... Zahi Nakad, Mark Jones, and Thomas Martin Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute & State ... E-textile systems require a robust communication scheme that can be... more
... Zahi Nakad, Mark Jones, and Thomas Martin Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute & State ... E-textile systems require a robust communication scheme that can be easily implemented in a fabric back-plane, communicate ...
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Research Interests: Computer Science, Distributed Computing, Textiles, Wearable Computing, Wireless Sensor Networks, and 15 moreLocalization, Ultrasound, Global Positioning System, Algorithm, Simulation, Navigation, Uncertainty, Wearable computers, Wearable Computer, Prototypes, Context Aware, Simulation Model, Electrical And Electronic Engineering, Prototype, and Transceivers
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When designing and using a wearable system, it is important to find the appropriate trade-off between system performance and battery life. Methods currently used for evaluating battery life over a range of CPU clock frequencies are often... more
When designing and using a wearable system, it is important to find the appropriate trade-off between system performance and battery life. Methods currently used for evaluating battery life over a range of CPU clock frequencies are often inaccurate because they fail to account for the fact that overall system performance usually does not scale proportionally to CPU clock frequency. We
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... Clicky has two switches and two LEDs. ... The following factors were evaluated when considering different connection methods: Physical strength Electrical reliability Ease of attachment Repeatable re-attachment Aesthetics... more
... Clicky has two switches and two LEDs. ... The following factors were evaluated when considering different connection methods: Physical strength Electrical reliability Ease of attachment Repeatable re-attachment Aesthetics ...
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Abstract. E-textile technology is rapidly progressing, allowing for the development of truly wearable computers as well as very large-scale computing textiles. Efficient development of applications on etextiles will require significant... more
Abstract. E-textile technology is rapidly progressing, allowing for the development of truly wearable computers as well as very large-scale computing textiles. Efficient development of applications on etextiles will require significant software services support. This paper ...
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- Electronic textiles (e-textiles) are emerging as a novel method for constructing electronic systems in wearable and large area applications. This new type of processing system merges textile and electronic technologies. This paper... more
- Electronic textiles (e-textiles) are emerging as a novel method for constructing electronic systems in wearable and large area applications. This new type of processing system merges textile and electronic technologies. This paper studies the communication requirements ...