Written Description
I want to design and build a jacket which based on the body temperature can adjust the amount of ventilation provided by the jacket, creating a more comfortable experience for the user when walking through areas with large temperature variances.
Inputs: Temperature between jacket and body (different locations)
Outputs: Moving vents/slits in clothing
Implementation: I aim to do this with a mixture of temperature sensors connected in a feedback loop along with muscle wire to provide actuation of the vents.
Parts List:
Nitinol Muscle Wire
Arduino Microcontroller
External Power source (for the wires)
External Power Source (for the Arduino Chip)
Regular highly conductive wire
Crimp fasteners to attach wire to wire
Variable Intensity LEDs (for testing)
Mesh Fabric
Jacket to cut up X1
Switch X1
Temperature sensors (thermistors) X4
Switching Transistors X4
Resistors
Code Sketch
Check Inputs of various thermistors
Translate input voltages into temperatures for reference
Based on PRESET temperature, check if temperature is greater than or less than input temperature
If temp is less than preset, close vent
If temp is greater than preset, open vent
Return to step one and repeat
References of similar projects
In this website I found a couple of shape memory garments http://www.xslabs.net/work.html , they seem to do a lot of work with wearable electronics. Here are some examples of work by them.
http://www.xslabs.net/work-pages/kukkia.html
http://www.xslabs.net/work-pages/vilkas.html
http://www.xslabs.net/skorpions/
