Progress

Progress: We have learnt about the Oscillator and the Generator from reading the manuals. We understand how to operate those two machines. Also, we discussed about dividing the film into different squares by cutting and using silkscreen printing to make the different kind of patterns.

Problem: We haven't encountered any technical problems yet. However, I (Vivian) need to learn more about the basics of electrostatics like electric current, voltages, electrical fields, etc. 

Plan: We will continue what we discussed. Vivian will watch some Khan Academy videos to catch up the Physics part and Aaron will figure out how to apply the silkscreen printmaking process onto the film. 

Update Part 1/2

Progress:

Last thursday, we had a formal discussion with Mr. Lin about our project and what we need to do.

As long as electrostatic displays have existed, there has consistently been one major flaw. The way that electrostatic displays work is by sending an electric signal through the entire layer of conductive material. The way these prototypes have always worked around this is by sensing where the finger is and sending out the associated tactile signal for that location. But, we propose to make it so that we can have different cells each with a different tactile sensation.

This doesn’t have to be see-through. The technology already exists for a tactile-touch combo screen. We don’t have to redevelop that. Instead, we can focus on making a tactile device that is not visual (yet).

RE: Gantt Project

Feedback:

1. Your Gantt Chart shows that you have very limited understanding of the scope of your project, and how to approach your final goal. I strongly suggest that your team should find time to meet up with me ASAP to discuss your project scope, contents, and possible activities you can do to solve your problem.
2. You will have to redo your Gantt Chart based on our discussion.

Gantt Project

https://drive.google.com/a/erhsnyc.net/file/d/0B7w3ondlAdKnR0hVVktWTG1qcTg/view?usp=sharing

Presentation

Link to presentation:

https://docs.google.com/presentation/d/1TysG7HmhVjuMku8oBYlrbZLt_G1SS0-vC3ngxC_27BI/edit#slide=id.gc8de08745_0_106

RE: Initial Planning & Coordination

I.  Project Description & Merits

To create a 2-dimensional tactile display system for the visually impaired based on electrovibration. This will benefit a community who struggles with visualization by guiding and giving them the opportunity to sense tangible feelings. Also with this type of system, it can be applied to many daily agendas, such as reading public maps or utilizing public facilities.

II. Group/Team Communication
Our team consists of Aaron Buckley and Yu Lin (Vivian) Tay. We will be using Google Drive to share our research and documents. For communication, we will email each other for updates and to collaborate.

III. Prior Work/ Resource Inventory

We have read about the tactile display using electrovibration and the implementation for the 2D tactile display. For example, the impacts of pulse polarity and the way the experiments showing polarity effect in electrovibration were conducted for the tactile display.

• Need to survey more prior work.

IV. Technology analysis

• electrical engineering (more specific, low-power high-voltage analog circuit design)
• iOS programming
• logic circuits

V. Competence

• mechanical physics
• electrostatics and circuit design.
• iOS Programming for image/ video processing

VI. Safety
There is a potential risk for electric shock if the current is not managed properly. However, the amount of current needed for electrovibration is incredibly low and the shock produced should cause no harm. Therefore, there is little risk involved with this project.

•  Need to make sure the current-restriction circuit is working properly. Handling high-voltage circuit always needs extra care.

VII. Equipment, materials & budget

• computer tablet as a platform to perform the developed electrovibration system (e.g. iPad)
• a film on top of the tablet. it will be made of insulating material and see-through conductive coating.
• an audio cable

• Lots of components/materials may be required in the design process.
• PCB fabrication may be needed for customer-build board.

VIII. Schedule
We are planning to understand the iOS programming within two weeks and will proceed to modify the codes. Then, we will spend two weeks studying circuit design, then proceed to design our own circuit.Then, we will build the circuit over the course of two months. Afterwards, we will spend another month trying to integrate it on to an iPad with the film. Once integrated, we will spend another month trying to improve our design and fix issues. Afterwards, we will spend the rest of the school year working with groups 8 and 9 to see our software opportunities and developing other applications for our design like public information displays.

•  Need to rethink the goals of your final design. Should set up a meeting with me ASAP.

Initial Planning and Coordination

I.  Project Description & Merits

To create a 2-dimensional tactile display system for the visually impaired based on electrovibration. This will benefit a community who struggles with visualization by guiding and giving them the opportunity to sense tangible feelings. Also with this type of system, it can be applied to many daily agendas, such as reading public maps or utilizing public facilities.

II. Group/Team Communication
Our team consists of Aaron Buckley and Yu Lin (Vivian) Tay. We will be using Google Drive to share our research and documents. For communication, we will email each other for updates and to collaborate.

III. Prior Work/ Resource Inventory

We have read about the tactile display using electrovibration and the implementation for the 2D tactile display. For example, the impacts of pulse polarity and the way the experiments showing polarity effect in electrovibration were conducted for the tactile display.

IV. Technology analysis

• electrical engineering
• iOS programming
• logic circuits

V. Competence

• mechanical physics
• electrostatics and circuit design.
• iOS Programming for image/ video processing

VI. Safety
There is a potential risk for electric shock if the current is not managed properly. However, the amount of current needed for electrovibration is incredibly low and the shock produced should cause no harm. Therefore, there is little risk involved with this project.

VII. Equipment, materials & budget

• computer tablet as a platform to perform the developed electrovibration system (e.g. iPad)
• a film on top of the tablet. it will be made of insulating material and see-through conductive coating.
• an audio cable

VIII. Schedule
We are planning to understand the iOS programming within two weeks and will proceed to modify the codes. Then, we will spend two weeks studying circuit design, then proceed to design our own circuit.Then, we will build the circuit over the course of two months. Afterwards, we will spend another month trying to integrate it on to an iPad with the film. Once integrated, we will spend another month trying to improve our design and fix issues. Afterwards, we will spend the rest of the school year working with groups 8 and 9 to see our software opportunities and developing other applications for our design like public information displays.