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

Scene outlines

The following is the script and scenario outline that I created to save time and maximise efficiency during the filming process. This was time consuming but I did feel as though I had a strength in doing this.

Scene 1

·      Two separate shots of Sarah and Taylor who have become increasingly lazy over the winter and who have befriended the couch all too much

·      Setting: Lounge room couch, girls are in separate home environments

·      Text message conversation between the girls

·      Sarah says “ I feel so gross, I can’t think of a time where I have been more unfit.

·      Taylor says “ Tell me about it, I was puffed just getting up the stairs at uni.”

·      Sarah’s dad interrupts looking fit as ever, “Why don’t you start training for the bridge to brisbane with me darl?” (Yoakim)

·      Sarah responds, “No way dad, that’s so much effort.”

·      Dad leaves the room

·      An advertisment comes on the TV for the physh and Sarah becomes intrigued.

·      Advertisement: “Do you struggle to find the motivation to work out? Do want to get fit with your friends? If so then choose ‘Physh’. Exercise has never been so fun until now. Physh monitors your heart rate and gives you feedback. Monitor your friends and see who’s fish can float the highest. Set your goals and see your friends goals for the following day.” (Voice over by Yoakim)   

·      Sarah says, “Hey, turn on the TV, are you watching this ad for the physh?”

·      “Yeah” says Taylor

·      “How about we give it a shot and maybe we could get in shape for the bridge to brisbane. Dads been hassling me about it all week” says Sarah

Scene 2

·      Separate shots of Sarah and Taylor setting up their own ‘physh’ systems. Separate shots of them putting on their wristbands and leaving the house. They meet eachother outside.

·      Setting (separate homes)

Scene 3

·      As they run the LED lights are illuminating.

·      Sarah then begins doing situps and pushups while Taylor sits with her head in her hands.

·      They say goodbye and go home separately

·      Setting: outside environment

Scene 4

·      Taylor goes home and looks straight at the fishtanks in disappointment (Sarahs fish floats higher)

·      Call is made from Taylor to Sarah, “hey how is your fish higher than mine?”, says Taylor on the phone to Sarah.

·      Settings: Two separate home environments.

·      “It was probably those sit ups and push ups you pulled out of at the end, says Sarah.”

·      (Playfully) “That’s it, I’m going to beat you tomorrow, mark my words, says Taylor (shines laser light to a higher position in the tank.)

·      Settings: Two separate home environments.

Scene 5

   ·      Another day passes and Taylor’s fish has risen higher than Sarah’s. Taylor stares into the tank with satisfied smirk across her face

   ·      Setting: Sarah’s home

Scene 6

·      Shot Jumps forward to the girls and Sarah’s dad, stretching before the race. The girls are in prime condition compared to their physical state a month prior.

·      Jumps to the end of the race, the girls satisfied with their progress “ We would have never finished the race had we not found Physh”

·      Setting: outdoor environment (start of bridge?)

Fish Tank Modelling

Lisa and I went to the workshop and I used Corel to draw the pieces that needed to be cut. This consisted of six pieces;  the top, the base and the two sides, the front and the back. It was a new experience using the laser cutter and I was pleasantly surprised at the result.

After peeling of the protective paper layer, we were at the point of glueing the pieces together. The workshop guys helped us with the process in finding the right glue and using the seringe to use the glue in the corners where two pieces adjoin. The glue that was used  was Dichlororethane I think..
He explained it as a heating action that occurs to join the pieces together. 

The result was good, no cloudiness on the acrylic and it was very sterdy and secure. The top was left off so that the inner components could be put in the tank.

Tank design

Lisa and I then used the session to speak with the guys in the workshop firstly about silicon and secondly about the tank design. They noted that they did not have silicon in the workshop and were unsure where or how you would purchase it but said that recycling used silicon might be the best bet.


They suggested that the tank could be made from perspex but that it would need to be layered to achieve curved edges. Due to the size of the inner components of the tank, the width was going to have to be at least 100 mm which would have equated to 10-20 pieces or perspex. We knew how time consuming this would be and the significant waste of materials that would occur.


We went back and spoke to Yoakim and Marianella. For the purpose of the model, Marianella said that it would be enough to laser cut a basic perspex tank and then Cad up the proposed design of the fish tank for the presentation. So after speaking again with the workshop guys we planned to laser cut our perspex for our tank the following day.

Materials and Design

The following Tuesday we collaborated with our progress. I personally struggled with finding how to buy silicon and purchased a silicon sealant to experiment. I immediately noted how sticky the substance was and doubted how this could be moulded to create a wristband. Mum suggested I use it on some baking paper and allow it to set to see if it was less sticky and stronger. I found it to be too brittle and really doubted how appropriate it would be for our model. 

Yoakim had brought some plastic cocktail glasses along which had led's in the base of the glass which became active via the push of a button in the base. He distmantled the base to see the led's and the circuit board. Yoakim also communicated how at the end of last weeks session, he had spoke to Marianella and she had said to steer away from using a standard fish tank in the model or in the design itself. We had a look online at more unique fish tank designs and decided a curved fish tank would be more appealing. Marianella also suggested that it might be better to eliminate water from the tank as it would just be an obstacle in our design and there was no need. Here is an image of influence that we found while researching;

Distinguishing Necessary Components

From there, we distinguished the importance of constructing a model and getting the behaviour elements started as soon as possible. At the end of  this session we set a list of the components needed and who would be responsible for getting what, for the following week. This list is as follows;

What we need

Fish for each person involved

Manufactured/3D modelled

Motor and string for each fish

Wristband for each person involved

-silicon strips

-LED

-tissue paper, to reflect colour

- if we can get manican hands/wrists

Fish Tank for each person involved

Spotlight/Laser (portable/ waterproof for each fish)

Water/air pump

Silicon- Bec

Tissue Paper Bec

Led’s- Yoakim

Lasers - Yoakim

Motors 3- Yasu

Fishing Line- Lisa

Lisa-scenario building

Bec- update the design brief

research

Yoakim- technology

            -Cad Model

Tangible Experiences

In week 10 we had our work cut out for us with the need to add an element of tangibility between users and develop the technology further. 

We decided to go in the direction of competing, which we had discussed in the round table discussion in week 9. We brainstormed and thought that it would be ideal if you could input their goals for the following day. This could then be viewed by you as well as your friends with the 'physh' system, from the time the goals were submitted and during the following day. This gives incentive to achieve your goals to avoid the humiliation of your friends seeing that you haven't achieved what you set out to. 

Furthermore, we talked to Logan about our idea and our unresolved issues with how our fish were actually going to move upwards or drop downwards depending on the transmission of heart rate. He suggested that if the bottom of the fish were attached to string which was then attached to a servo motor  on the base of the tank, the string could be wound to the correct height depending on the results. There would need to be something which acts as an object to wind the string around. We developed this further to make the decision that it would be better to add weights to the fish and have the string attached to the top of the fish to the servo which is underneath the lid of the fish tank. If the person has a high percentage increase above their resting heart rate, the programmed servo will activate the winding function and the string will wind more and more until the fish has reached the height that represents this percentage. If the person has a very low percentage or no percentage increase above resting heart rate then the winding function will be minimal.

Scenario Building

I had been assigned to determining the scenario for our video. We collaborated a few ideas about scenario's which we could possibly explore in the video. Lisa had suggested a few friends wanting to get thin for an upcoming ball, however, we decided against this after consideration as we really wanted to aim our product  more at health, fitness and wellbeing rather than weight loss. I suggested a few friends who have been pretty lazy lately and want to train for the Bridge to Brisbane. We ended up going with this scenario as this run promoted fitness to people of various age groups and is perfectly achievable by anyone who trains.