Input/Output

I created an input/output diagram to clearly distinguish what information or activity the user must input to the system and what they will receive and view as an output.

Anthropometric Data

I searched for anthropometric data to back up the sizing of the wristband. Initially Yoakim had said that one size would be adequate, being a larger size which could then be pushed up the arm of the user to sit higher if they had a smaller wrist. I think that it would be worthwhile to manufacture possibly three various sizes to account for the variation in wrist circumference. The anthropometric data for the 5th to 95th percentile human is documented above with the wrist circumference ranging from 13.7 to 16.2cm. Sizes could be say 14cm (sml), 15cm (med) and 16.5 cm (lrg). This data was from the Anthropometry and Biomechanics section of National Aeronautics and Space Administration website (NASA).

Model Wristband

At this stage I was quite happy with our progress, I was really concerned about the behaviour aspect of it though as Yoakim had gotten the led's in the wristband working, however, this had taken a lot longer than expected and he didn't have time to activate the motor and axel to show the height variation. This was quite frustrating, being that Lisa and I could not help him with this as we did not sit through these tutorials. Here are some photos of the behaviour of the wristband in progress and the completed model. The cluster of led's give feedback to the user by mimicking the heart beat of the user.

Filming Day 2

We used Friday as a filming day at Yoakim's house. At this stage the fish had been 3D printed, glued and painted and the tank was assembled. Filming went pretty smoothly as we had a clear direction due to the scenes already having been decided. We spent about 3 hours and ended up with some good filmed scenes to work with. Yoakim spent the weekend working on it and tweaking it. I was extremely happy with the result.

3D modelled Fish

 The fish turned out well after the 3D printing. They did not require a weight as initially thought due to the weight of the material itself. They were longer than expected which meant that we could only fit two fish at maximum in the tank, and even then it was a tight squeeze. For the final design the fish would be smaller. The fish were printed in two halves and then glued together and painted by Lisa. The fishing line, required for the purpose of the video was glued inside the fish, extending upwards. In order to keep the fish heightened, we pulled the string up through drilled holes in the top of the tank and blutacked it on the base of the tank.

Filming Day 1

We decided to save time and begin our filming on the final Tuesday class which was the 18th November. We had allocated the following Friday for filming but only had a half day due to class in the afternoon. We began from the scene of the run with Yoakim filming, then moved onto a separate scene where I was doing situps and Lisa was eating potato chips and being inactive. We moved onto the final scene which we decided to change slightly to capturing the girls at the end of the race, being very pleased with their success. The following photos are from the Tuesday of filming. 

Preparing for Filming

From there I came up with a list of things we would need for filming.

What we need:

•Phones

•Components of Physh system: wristbands (2), Fishtank, fish (2), fishing line. (do we need to have the motors running or can we fake it?) Some form of light for setting goal +wristband feedback?

•Workout gear+sneakers

•Lazy gear

•We may need to film last scene elsewhere