envella Final project implementation

In this paper we describe enVella, a kinetic dress with movement triggered by the detection of the wearer’s fear or anxiety. The upper portion of the dress is surrounded with fans which open and envelope the wearer if her body temperature and heart rate are both rising. The aim of this project was to investigate the detection of fear with biosensors, and to see whether an enveloping physical transformation can provide a sense of comfort to the user. We begin by going over background research we conducted. Then we describe our prototyping process and challenges we faced along the way. We describe our implementation details, user reports, and then conclude with a discussion of future.

Material:
Chocolate satin silk material in conjunction of interface to make a material that is flexible enough to handle yet ridget enough to fan out without collapsing.

Technical:
Heartbeat sensor:  Increase in anxiety will increase in heartrate and tempurature, this is one of the result we concluded after we research into this area. So we bought a special heartbeat sensor that work with arduino called “HRMI” with polar band to detect user’s heartbeat.

Tempurature sensor are use to detect changes in body tempurature, however we later found out our human body tempurature does not fluxuate that much as a result it will be a challange for us to map this chabge.

Prototype:
Earlier the week we tried various idea that would give user the experience of enveloping and explore our research topic “perception of safety” , our single track system did not work out the way we want due to lack of equipment in school that allow us to bent the tube into a more organic shape that we desire.  As a result we implemented multiple fan at different location of the body which opens up in sequence once it triggers by the heart rate sensor,

We made paper prototype of the fan structure which later on going made into fabric using double sided fusible web interface with two fabric sandwich it in between to gave us the material that we want.

To make the crease we use iron to each and every fold inside of using laser, we found this method to be more effective. The fan structure it self has two wooden backing to give further structure integrety.

It was a challange to sow all servo motor or any support backing material on the manikin because it doesn’t give us alot of room, but the manikin allow us to accurately plot where each actuator will go.

Over asthetic is achieve by having similiar type of chocolate brown satin silk material that made into a lace like dress that cover the overall manikin.. this give our project more consistency and continuous rather then each fan looks like seperate element.

User testing:::
Due to time constraint we only had two user testing, they both feel the dress is not too cumbersome and nor heavy. However, if the heartbeat sensor can be more accurate it would be ideal, since one of the challages we found is with the detecting with increase in heart rate, there would be a delay before the fan opens.

 

Future plan:::

Instead of using rectangular fan perhaps we can use more rounded shape structure to make it more integreted with the overall look

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