An accomplished individual with diverse international experience
gearing toward consultancy industry. Displays strong analytical
qualities, problem solving abilities and leadership skills. Extensive
experience in engineering design, project management, and
design visualization. Ability to learn quickly, prioritize work, accept
new challenges, work in fast pace, meet deadlines and
collaborate with individuals with different backgrounds to
achieve greater goals.
My client had a backyard, over 70%
of which was shaded by the tree near
her house and the ground is filled with
rocks and stones. Our design was
aimed to renovate her backyard into
a garden without removing the tree.
My team and I design an artificial
sunlight lamp system to resolve the
lighting problem. Combined with soil
base and watering system I designed,
our client was highly satisfied with our
solution we presented.
There were two sub-systems of the watering system - collection system and irrigation
system. The collection system was designed to have two switches on both inlet and
outlet to control the level of water stored and keep pressure at certain level. The
irrigation system was designed to evenly irrigate the plants.
The foundation was designed to minimize the work needed and also to contain the
planting soil in order to protect surrounding soil from potential contamination. The
material of steal fittings and PVC frames were chosen for easy maintenance and
replacement.
Engineering design skills
• Applied knowledge learned in class and designed watering system and
greenhouse frame structure
• Constructed 3D model for each main components of the design in SolidWorks
to provide visual demonstration to our client
• Drew engineering sketches for communication with engineering professionals
Leadership and teamwork skills
• Kept communication inside the team flow through different channels; Each
channel was selected according to teammates’ responding time
• Managed project team work in time aspect
Hot cells are highly-irradiated that can only
be accessed by a Human Operator (HO)
from outside the cell using a tele-manipulator
system or mobile robots to perform various
tasks in the cells. The hot cells our client
Canadian Nuclear Laboratory has can only
provide HO with limited visual and haptic
feedback. The objective of this project is to
improve visual and haptic feedback without
compromising the dexterity current system
has.The Final Design
Engineering perspective
• Due to radiation environment, components, especially electronics, have higher
rate of failing. The number of components inside hot cells need to be minimized.
• With consideration of sealing and contamination prevention, the system should
be designed for easy maintenance and replacement.
• In order to ensure reliability and safety, the system should be designed to have
redundancy in case of components failure.
Team perspective
• Because of team members coming from different disciplines, the schedules of
each individual are very different. It might be difficult to keep communication
open inside the team as well as between the team and client.
• Because of different backgrounds, each individual in the team does not always
share the same perspective with others, which could cause another
communication problem.
The proposed design was selected from five candidate
designs. The selection process included Weighted
Decision Matrix with each candidate competing with
current system with regarding of the ability of meeting
functions and objectives. Each single score assigned was
discussed and agreed among team members. The
proposed design included a visual system that generates
virtual reality based on information captured by the
cameras and also a haptic feedback system provided
by Haption, a company that specialized in haptic
devices.
MAT 6D by Haption [1]
[1] Haption, "Datasheet MAT 6D" [Online]. Available: http://www.haption.com/site/pdf/Datasheet_Mat_6D.pdf [Dec.02, 2015]
Virtual Reality With Markers
The proposed design was then presented to the client
and supervisor for critique. After we had the
permission to move forward, we contacted the
suppliers for both systems for specifications and price
quotes. According to the information gathered from
suppliers, the design was finalized – Haption Virtuose
6D TAO as the haptic feedback system and Diakont
D70 cameras with OpenCV as the visual feedback
system. We addressed questions arose during the
critique and performed cost analysis. After evaluated
the design, future recommendation was provided to
the client.
The Final Design
Camera Set-up Maps for Two Types of Lenses
• Traced back from the sponsor list in a YouTube video came across during research
to the MAT 6D by Haption and developed a candidate design based on it
• Proposed to compete candidate designs against current system to have a clear
standard for teammates when assign scores and generate more reliable result
• Found the mechanism of MAT 6D controller from a research paper which was
found based on a small detail in a conference material by Haption
• Researched and prepared, using knowledge learned from class and outside of
school, for fluent communication with professional engineers in conference call
with suppliers
• Analyzed specifications of camera lenses and visualized the camera view
coverage in camera set-up maps in aiding for client lenses selection
Leadership And Teamwork Skills
• Took the initiative to volunteer as the communicator between team and client
then became team leader after
• Acknowledged each teammate had different schedule and communicated with
them frequently to keep the process of the project smooth
• Understood each teammate’s point of the view to keep everyone at the same
understanding and assigned tasks according to each individual’s background
and personal preference
• Developed different ways of working with each teammate to fuel their motivation
• Stepped back and let the teammates to lead when it came to their area of
specialty
The disposal camera was
a term project I complete
when I was in Simon Fraser
University. It contained 23
parts which need to be
molded individually and
assemble them together in
one assembly document.
It also had an outer case
which can prevent water,
but due to there were too
many curvatures on the
surface of outer case, it
was neglected in the
project. The picture on the
left is a explored view of
the disposal camera.
I came up with the candidate design of 3D
printer based on the target market as home
using. The base plate was designed to move
in z-axis which would save lots of space than
putting it move in xy-plane. The extruder
moved in xy-plane guided and supported by
four guiding pipe. The timing belts and gears
would provide motion transmission.
Based on the draft design, more details and
improvements were added into the design.
The two-nozzle system would increase effective
significantly. The frame rod design allows easy
assemble and disassemble. At the mean time,
it was light weighted and needed less material
while providing required strength. The solid
base plate would reduce vibration and noise.
The set of this Planetary Gear Train was from a
electric screw driver, which required high
torque output. The Planetary Gear Train had
a gear ratio from input to output of 84:1.
I designed the band break located on the
input shaft which had much lower torque.
Also, the band break required much less
space than the other break types.
The Right Angle Gearbox
provided a 90 degree
connection between a
motor and a drive roller.
The gearbox was also
used as a reduction drive
to shift the rotational
speed.
I designed Input/Output Connector to connect
Motor and Drive Roller with the Right Angle
Gearbox. I also designed the Supporting structure
to support the whole system which located at 36
inch from floor. The supporting structure had four
legs which was designed to keep the system stable
while it was running, because the motor may have
certain vibration when it was running.