Date: November 4, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang

Current status of project: We have finalized our decision to proceed with the double headband design and have chosen a reference design for our dry electrodes.  Dr. Elbert informed us that we will not be able to 3D print the electrodes because polydimethylsiloxane, the polymer that we are planning to make the electrodes with, is a liquid at room temperature.  Thus, we will have to find a different manufacturing process for the electrodes.

Work planned for next week:  Look into different manufacturing for polydimethylsiloxane electrodes.  Start Design Safe analysis of our device.  Work on developing a CAD drawing of our device and the electrodes.  

Anything needed from client or TA or instructor to continue work: No

Date: October 28, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang

Current status of project: We have steadily worked on the progress paper and presentation and plan on proceeding with a dual-headband headset design for the time being, using dry electrodes.  We will continue to work on the paper and presentation this week.  

Work planned for next week:  Complete progress paper and presentation.  Start CAD drawings of solution and look into specific design considerations with the dual headband setup.

Anything needed from client or TA or instructor to continue work: No

Date: October 21, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang

Current status of project: We are currently in the middle of narrowing down possible solutions for the headwear and developing models in CAD.  Hopefully a model will be 3D printed by the final paper/presentation date.  We started planning for our progress paper and presentation.  

Work planned for next week:  Complete progress paper and presentation.  Finalize a design to proceed with the project.  

Anything needed from client or TA or instructor to continue work: No

Date: October 13, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang

Current status of project: After learning that the Risk Assessment was not due last Wednesday, we decided to postpone completion until we have formulated a complete solution.   We looked into possible devices for amplifiers and analog to digital converters.  One good solution for the ADC is the Texas Instruments ADS1298 ADC because it appears to fit all of our requirements for signal fidelity.  We also found more papers that we could use for more suggestions on the equipment. We also further researched potential electrodes and which placement pattern would be most effective.  

Work planned for next week:  We plan to start CAD modeling of possible headwear designs. In addition, we will continue finding suitable signal conditioning devices.  We also will begin considering different ways we will store the EEG data in the device.  

Anything needed from client or TA or instructor to continue work: No

Date: October 7, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang

Current status of project: We completed our preliminary report and presentation. The initial website was completed and can be viewed at: sleepstagemonitor.weebly.com. Examining existing solutions via literature and patent searches to develop a novel solution for occipital lobe EEG. 

Work planned for next week: We will begin formulating solutions to our problem. Complete Risk analysis assessment. 

Anything needed from client or TA or instructor to continue work: No

Date: September 29, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang

Current status of project: This week we met with a sleep study technician, Dr. Brian Toedebusch to discuss problems with sleep studies as they are and the hurdles we might have to face in the design of our device. It was suggested that we expand the capabilities of our device beyond just EEG.  We also met with Dr. Lucey and verified the scope of our project.  In addition, we met with Dr. Moran and decided that development of the mobile device application to receive the EEG data is not a primary concern, and that we should focus our efforts on developing the actual device.  We have also worked on the preliminary report and presentation for Wednesday.

Work planned for next week: Following presenting our reports this week we will begin formulating solutions to our problem.

Anything needed from client or TA or instructor to continue work: No

Date: September 22, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang
 
Current status of project: We did a patent and literature search which revealed many potential designs depending on what kind of dry electrodes we use and what kind of algorithm we use for processing the data.  We also continued working on the website for our project.  
 
Work planned for next week: Visit the sleep center to talk to a technician and hopefully observe how they set up a sleep study. Complete first report and presentation.
 
Anything needed from client or TA or instructor to continue work: No

Date: September 15, 2013
Project Name: At-Home Sleep Stage Monitor
Group Number: 29
Group Members: Kiron Sukesan, Matthew Hwang, Yinong Wang
 
Current status of project: We have begun work on the website for our project.  We have also discussed possible methods of placing the electrodes, such as designing a cap that surrounds the head or a pillow with integrated sensors.  Right now, we are leaning towards the cap idea.  
 
Work planned for next week: Complete literature search and further discuss the cap design.
 
Anything needed from client or TA or instructor to continue work: No

Date: September 8, 2013
Project Name: At-Home Sleep Stage Monitoring Device
Group Number: 29
Group Members: Matthew Hwang, Yinong Wang, Kiron Sukesan
 
Current status of project: We have met with our clients and mentor to gather a more complete description of the problem and the desired features of the EEG device.  The project objective is:  to develop an inexpensive, easy-to-use, EEG-based device that can record and determine what stage of sleep a subject is in with enhanced accuracy using frontal and occipital lobe recordings for consumer use.  
Work planned for next week: We plan on start construction of the website this week, and to conduct background research into various EEG data collection techniques for use in our device.  
Anything needed from client or TA or instructor to continue work: Not at the moment.