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Pages and Files
Quick Start Guide
History of Major Design Decisions
Ongoing Validation Testing
Which Phones Can be Used and how? (coming soon)
Phone Testing Procedure (coming soon)
Obtaining Wockets Hardware
Option 1: Make Them Yourself (Detailed Info on Assembly) (Coming soon)
Option 2: Buy Them in Small Quantities (Coming soon)
Option 3: Collaborate with Wockets Team (use loaners) (Coming soon)
Testing and Calibrating Wockets
Calibrating a Wocket
Testing a Wocket (coming soon)
Google Code Site
(all software, including firmware)
HW Design History and Tech Specs
Wockets data formats (coming soon)
Wockets Software Architecture (coming soon)
Wockets Timestamp Correction (coming soon)
Wocket Enclosure and Band
Housing V3 Sealer Construction
Sensor Housing V4 concept and production
Bands and poach concept and production
Activity Recognition Software
Research Papers - Reading List
Wireless Sensor Kits
Other BT Sensors
Open Source Hardware
Open Source Tips
Physical Activity Conferences
Legacy Stuff (e.g., MITes)
MITes Design Info
Files for MIT/Stanford/UT/Northeastern Projects
Housing concept - fabric bands
Housing concept: Fabric bands
The sensor can be inserted into fabric bands that attach to different areas of the body (e.g., wrists, ankles, thighs, calves, arms). The bands, once attached, have to be comfortable enough to stay in the same position for long periods of time.
Does concept meet the general design constraints?
Low cost : yes - even special fabrics like Gortex are affordable, given the small amount need for each sensor
Easy to make in small (prototype) and large (eventually) quantities : yes?
Non-metallic, to avoid wireless signal distortion: yes
Robust and sturdy for lengthy deployments (X+ weeks): yes? - may be possible to machine wash
Water proof (best) or water resistant (minimally) : water resistant? - some fabrics wick moisture or are water resistant
Easy to charge (i.e., connector easy to insert and remove) : yes?
Easy to place on body, even for elderly who may have less hand strength and dexterity : yes?
Possible to wear multiple sensors simultaneously for adequate data collection : yes (e.g., wrists and ankles)
Possible to wear sensors on upper body and lower body for adequate data collection : yes (e.g., wrists/arms and ankles/legs)
Which additional design implications does concept seek to address?
Need for flexibility
: yes? should be possible to move band from wrist to wrist or possibly from wrist to arm to ankle
The band should be stretchy, reasonably priced and resizable so we can allow for different sizes (XS, S, M, L, XL,XXL). The band fabric should be thin (like Lycra) and have the properties of Gortex (dissipate sweat, stay dry and be water resistant). In general, the attachment should be very comfortable and avoid any type of irritation, even with people who may have sensitive skin. They must be washable. These could either be tubes or bands with clipping mechanisms.
Can be made to be comfortable
Provides placement option at wrists and ankles and possibly arms and legs
May be made tight enough to keep sensor in consistent position
Difficult to make work for different size limbs?
Aesthetic concerns (how to go beyond the 80s tennis wrist band)
May trap sweat
May get in the way of typing when on the wrist
If participant wears watch, may be placement conflict at wrist
Keep from sliding on limbs that change shape (thighs, calves, upper arms)
Nov 1, 2008
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