woensdag 23 april 2014

Prototype 36-39

In the following movie you can see the handling of bernoux with the 4 different prototypes.
Bernoux was very calm and happy today so the collaboration was very good.

Movie Prototypes:


Prototype 36 (Gloves)

On the first test she wasn't able to get the gloves on in the right way. The second time she did.
This hand-tool offers a possibility to work with because she can put/keep it on her hand.

We only did a very short test so wee don't know how long she is able to hold in on (irritation or distraction).
The supervisors also told this was maybe a possibility.

Prototype 37 (Wristband)

As you can see in the movie, the wristband is very use friendly. It's very easy on and off. The disadvantage of this tool is that the (later attached) IR LED will be at the wrist and not the finger. She seems to have no problem having the wristband on.

Prototype 38 (Thick Pin)

The Thick Pin was not so popular. She seems to struggle with the working of it, also moving is very difficult. How thicker the pin, the less good it lies in your hand. So the conclusion with this tool is that it's a little to big to work with.

Prototype 39 (Small Pin)

Drawing has always been a weak point for bernoux. But coloring with a pin seems to work out. She proved that with the smaller pin. With this tool she is able to draw some lines on a piece of paper, the question is again how long she will be focused on the pen and eventually the smartboard.

Till now are of our options are still open. The real reactions will need to be tested with a real interaction. Then we can see how long they are focussed and if it comes throug the game or the hand-tool.

Giving an example of other people in the living group who are asking for attention. Meanwhile Bernoux was very distracted by the actions of the other person, so some of the test where a bit slower then the others

Movie distraction:


Testing & observation Bernoux 23/04

This morning we visited Bernoux again to do some testing with ceveral tools for the interaction with the smartboard. We had some interesting object wich can be provided with the IR LED. These object will then be used as recognition tool for the wii remote.

Our goal here was to look and see which tool bernoux handled best, so it doesn't get of or irritates her while playing with the smartboard.

We used the following tools in our test scene:

  • Mini towel
  • Wristband
  • Gloves
  • Thick Pin
  • Smaller Pin
Everyone was very busy at the moment we arrived, so we tried to do our testing very quickly.

maandag 21 april 2014

Preparation on the observation on 23/04/2014

Purpose of structured and participatory observation on 04/23/2014:
• Bernoux has sufficient sensorimotor functions and skills .
• Bernoux holds a dominant hand and hand fixation .
• Bernoux mastered sufficient coordination patterns in upper limbs such as reaching , make symmetrical movements , bimanual coordination , dissociations , ...

Types of handles:
- Ulnar handle: grab with pinky and ring finger
- Digito-palmar grip: grip with four fingers and the palm
- Digital Radio handle: grasp the thumb with the four fingers
Ø  Cylinder Handle: grasping with the thumb and fingertips
Ø  Key Grip: grasping with the thumb relative to the radial side of the index finger
Ø  3 - fingertip grip: grip with the thumb , index and middle finger
Ø   Inferior pincer grasp: grab the DIP ( distal inter - phalanx ) of the index finger and thumb
Ø   Superior grip tweezers: grasp with the tips of the thumb and index finger
Ø   Handle Cover Letter: surface of the fingers with full thumb opposition
Ø  Wide grip: Grasping with DIP's all fingers and thumbs
Ø   Handle Scissors: Opposition thumb - middle finger
Ø   Hook Handle: flexion of the fingers , with or without the thumb
Ø   Cross Handle: Opposition of the thumb with the index and middle finger , fixation with the other fingers
Ø  Latero lateral grip: Grasping the lateral sides of two fingers
Ø  Brush Handle: Grasping the thumb, index and middle finger
Ø   Pencil Grip: Grabbing the tips of the thumb and the index finger and the lateral side of the middle finger

Observe which handles Bernoux performs without any trouble .
Objects will be made to analyze in Bernoux . Handles the common during the structured and participant observation. Later, the sensors can be applied to the object (in this grip ) that it uses Bernoux best. (Here we are alert to the power of Bernoux and the possibility of destroying the material = durability!)
 è To use  ‘the Smartboard ' easy, we prefer the digito - palmar grip , grip the cylinder , the 3 - fingertip grip and wide grip .
On Wednesday, 23/04/2014 these handles are observed .

- Washing
- Glove
- Thick pin / glue tube
- Soft cloth
- Soft ball ( the mousse can’t be torn)
- Film
- Projector (from GKG )

dinsdag 8 april 2014

Proto 35 different kind of IR pens

With the first set up of proto 32 we could only get a range of 30 cm.
To get a longer range, we need a stronger IR led. therefore we will use a LED running at minimum 100mA.   Vishay TSAL6400s

Simple schematic of the IR LED pen set-up.

To get a stronger IR beam, building an IR LED array would be another possibility:

vrijdag 4 april 2014

Proto 34 tracking fingers

Using an LED array and some reflective tape, you can use the infrared camera in the Wii remote to track objects, like your fingers, in 2D space. This lets you interact with your computer simply by waving your hands in the air similar to the interaction seen in the movie "Minority Report". The Wiimote can track upto 4 points simultaneously. The multipoint grid software is a custom C# DirectX program.