Our group--iMind final presentation as we conclude on our journey to MS in Computer Engineering capstone.

1. Presented by:
Gil Orcilla
Eunice Kimani
Omer Saeed
Presented to:
Dr. Kathy Kasley
EE660 – Fall 2013

2.  Introduction
 iMind Helmet Potential Customers
 iMind Helmet Operation
 Requirements
 Future Possibilities
 Conclusion

3.  Brain Reading Robot Remote
◦ A helmet that reads brain activities and then
translates it into a command for a Robot.
 Purpose
◦ To help the immobile humans, to make them
independent
 What’s new?
◦ Not just about moving hands but about complete
tasks

4. ◦ To help the immobile humans, to make them
independent
 Military who wound up disable after war
 Civilians after an accident who end-up in wheel chair
 Paralyzed and old population

5.  What Does iMind Helmet Do
◦ Recognizes thoughts and translates them into
 “Hand Gestures” that robot will utilize to execute
user’s wants
 “Cognitive Mode” process thoughts and commands

6.  Super Fast
◦ A brain is capable of almost 1 million MIPS
instructions per second
◦ Should be able to read those signals and then
translate
 Power Efficient
◦ To be worn by a human being
◦ Size directly corresponds to power efficiency
 Good Heat Dissipater
 Lightweight

7.  Input
◦ Brain activity picked up by the helmet is sent to a
computer
 A software is used to work out which
movement the person is thinking about.
 Output
◦ Sends a signal to the robot commanding it to
perform the task

8.  General design requirements:
a. Wireless range 100 feet with optional
and encrypted
b. Sampling rate: 512/second
c. Electrically similar to GFCI, to prevent
feedback/power spikes.

9.  General design requirements:
◦ Bandwidth: 240 Hz
◦ Dynamic Range: 500uv
◦ Power Source & duration: Lithium-ion battery,
minimum of 24 hour duration with 3.3V
◦ Sleeping mode disabled
◦ Operates during medical emergencies and
impairment

10.  Under What Limitations
◦ E-wreath, it will fit/snug to anyone’s head with
comb like wires
 It has multiple wires to allow electromagnetic
induction to detect brain signals.
 It can withstand 0-150% relative humidity, without
submersion to water
 It will operate bet -40 Deg F to 180 Deg F

11.  Unit Testing
◦ Test Individual units and components at the design
level. The environment will also be digitally
modeled to represent the physical design of the
helmet
 Integration tests
◦ Tests the interactions between the main parts our
design Helmet, Robot and Software
 Acceptance testing
◦ The overall functionality of the system will be tested
as per the requirement specifications.

12. Reg # Functional Requirement Description Testing Requirement
Speed
1a. The system shall read brain
signals
1 million MIPS instructions per second Pass/Fail
1b. The system shall and translate the
signals
A Software will be used to work out which movement
the person is thinking about.
Pass/Fail
Power
2a. The system shall be power
efficient
Lithium-ion battery will be used to operate it Pass/Fail
2b. The system shall operate 24hrs The system will be tested to operate under 24 hrs, 7
days a week
Pass/Fail
Weight
3a. The system shall be lightweight The helmet will be 3.95 ounces (112 grams) Pass/Fail
Communication
4a. The system shall provide wireless
transmission
Wireless range 150 feet with optional and encrypted Pass/Fail
Environmental Conditions
5a. The system shall maintain normal
operation at a range of
temperature
It will operate bet -40 Deg F to 180 Deg F Pass/Fail
5b. The system shall withstand
relative humidity, without
submersion to water
It can withstand 0-150% Humidity Pass/Fail

13.  Short Channel Effect
◦ there is a limit to which we can reduce the size of
the transistors without getting negative effects on
the performance of the transistors such as power
consumption and threshold voltage
 Body Effect
◦ the body effect basically raises the threshold voltage
VT of the transistors from the zero body-source
voltage threshold or VT0, changing the behavior of the
device
◦ This is especially important in cascaded systems
where this output, Vout, must trigger subsequent
devices

17.  Speed
◦ Emitter follower provided the best in speed
◦ CMOS followed closely
 Power
◦ CMOS used the least power
◦ Emitter follower values were reasonable

19.  Best choice is Lithium Ion Battery
 Used in Most Cell Phones these days
 Rechargeable
 Good for a day operations

20. 0
0
0
0
M3
MbreakN
M4
MbreakP
CLoad1
40n
VDD1
5Vdc
Q5
Q2N3904
Q6
Q2N3906
Vin1
TD =
TF =
PW =
PER =
V1 =
TR =
V2 =
VDD
VDD0

21.  CMOS
 Reason for Choice:

22.  A new era of communication
 Could be used to run errands
 Military can leverage on this technology, through
land, sea, and air both offensive and defensive

23.  A big breakthrough
 Would change lives of immobile patients
 Would save the lives of Victims in a disaster
 CMOS is the best choice circuit for our device
 Choice based on the results from Lab#24 and our
speed and power requirements

24.  Abbott, A. (2012).Mind-controlled robot arms show promise.
Retrieved from http://www.nature.com/news/mind-controlled-
robot-arms-show-promise-1.10652
 The Guardian.(2012). Mind-reading program translates brain
activity into words. Retrieved from
http://www.theguardian.com/science/2012/jan/31/mind-
reading-program-brain-words
 Quick, D. (2010). Mind reading – scientists translate brain signals
into words. Retrieved from http://www.gizmag.com/translating-
brain-signals-into-words/16308/
 University of Minnesota, (2013). Mind over mechanics. Retrieved
from http://discover.umn.edu/news/science-technology/brain-
computer-interface-allows-mind-control-robots
 http://www.batteryspace.com/batteryknowledge.aspx