ECOR1044 group project
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Carleton University *
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1044
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Industrial Engineering
Date
Jan 9, 2024
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Mechatronics: Group Project Report
ECOR1044: Section A
Submitted on:
12/06/2022
2.
Table 1: List of initial “best” product ideas chosen
Idea:
Ben
Khadija
Sarah
Idea 1:
Idea 1: One of the
ideas for this project
was a cereal
dispenser. This
device would take a
bowl to one of three
different cereals and
fill the bowl with the
desired amount of
cereal. After this the
bowl would move
along the track to the
milk station where the
user would be
prompted with their
choice of milk, oat
milk or almond milk,
regular milk is
unfortunately not an
option due to the lack
of refrigeration.
Idea 1: Raspberry pi
Internet speed
monitor
This project is
designed to utilize a
python script written
to interact with a
program to monitor
your internet
connection called
speedtest CLI, after it
has collected the
data it will proceed to
save the data and
upload it to an
appointed google
drive. Speedtest CLI
works by using
speedtest.net which
will collect your ping,
download speed, and
upload speed.
Idea 1: Pressure
Sensor timer for
Skiers
The project has two
push buttons that
start and stop a timer.
These pressure
sensors are placed at
the beginning and
end of a
cross-country ski trail.
Hence, when the
skier crosses the first
pressure sensor it
starts a timer. Then,
when the skier
passes the pressure
sensor at the end of
the trail it stops the
timer and displaces it
on a LCD screen.
Idea 2:
Redesign of the
Roomba vacuum.
This new “Roomba”
would attempt to
contend with the
original by performing
the same tasks while
being less expensive.
DNS server:
This project utilizes
an open source
software called BIND
to set up a DNS. The
DNS will help you
find your way around
networks online
through IP
addresses.
Idea 2: Snowmobile
Trail Trackers
The project uses a
camera to scan a tag
on a snowmobile
found throughout the
trails. This allows the
program to keep
track of the location
of the snowmobile.
The posts that hold
the scanner also
have LED lights to
ensure security on
the trails.
Idea 3:
Toy Jedi robot. This
toy would drive
around autonomously
while playing the
Meeting indicator
screen
This project mainly
utilizes software but
Idea 3: Pressure
sensor shoe rack.
The project uses a
pressure sensor in
iconic “Duel of Fates”
and swinging a
LightSaber around.
This would be
targeted to the Star
Wars and Kid
demographics.
still uses some
components like
raspberry pi and an
LCD screen to flash
red when it detects a
meeting in your
calendar, and flashes
green after the time
has passed.
order to let an
individual know if
their shoes have
been stolen. When
there is a loss of
pressure it would
send a notification to
a device which
notifies the owner of
the shoe.
The projects found in table 1 were chosen after much debate. A pros and cons list was used to
decide which projects are the “best”.
3.
The process that was used to select the best idea/design for each team member was
looking at how detailed the idea was. This means the more the thought that went into the design
the more likely it was to be chosen. This was not the only metric used, practicality is also very
important when choosing a design. The more practical the application the easier it will be to
market to future customers. Another factor that played a role in picking the project was the
interest of the group in the project. The group leaned to a project that is interesting and unique
to create.
Table 2: Pros and Cons
Group Member
Name:
Idea:
Pros:
Cons:
Ben
Cereal Dispenser
-
Fun to build
and design
-
Very useful
-
Health Care
implementation
for the
physically
disabled
-
Gives a very
futuristic
aesthetic
-
Time
Consuming,
lots of
components to
implement
-
Cross
contamination
between
cereals and
milks, could
negatively
affect those
with certain
allergies
-
Waterproofing
some of the
components
would be
complicated
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Sarah
Skier Timer
-
Helps athletes
and
recreational
skiers keep
track of their
times.
-
Helps athletes
and
recreational
skiers reach
their goals.
-
Help workers
monitor the
trails and show
if they are in
use.
-
Only one
person can use
the trail at once.
-
Can
accidentally
miss the push
button.
-
Lots of work
finding ways to
waterproof the
project from
snow.
Khadija
Internet speed
monitor
●
Monitors any
issues in your
internet speed
●
Detects the
best time of day
for your internet
●
Informs you
how your
download
speed or
upload speed
are affected
over time.
●
The speed test
could have
inaccurate
results due to
pre existing
issues with the
browser
Listed in the table above are the pros and cons of all three projects. The pros and cons were
discussed in order to get a good understanding of the projects.
4.
Table 3: Cost breakdown of each proposed project
Project Idea:
Parts Required:
Cost of Part:
Number of
Parts:
Total Cost:
Cereal
Dispenser:
Raspberry Pi
$35.00 [1]
1
$35.00
Dry Cereal
Dispenser
$60.02 [2]
1
$60.02
DC Motor
$24.61 [3]
3
$73.83
Ultrasonic
Sensor
$10.23 [4]
5
$51.15
Servo Motor
$29.36 [5]
2
$58.72
Liquid Dispenser
$28.57 [6]
2
$57.14
Stepper Motor
$29.45 [7]
2
$58.90
Bread Board
$7.52 [8]
1
$7.52
Spool of Wire
$137.21 [9]
1
$137.21
Number Pad
$120.49 [10]
1
$120.49
Grand Total:
$659.98
Skier Timer:
Raspberry Pi
$35.00 [1]
1
$35.00
LCD Screen
$16.99
1
$16.99
Bread Board
$7.52 [8]
1
$7.52
Pressure Sensor
Bundle
$10.99
1
$10.99
Resistor Bundle
$18.99
1
$18.99
Spool of Wire
$137.21 [9]
1
$137.21
Grand Total:
$226.7
Internet speed
monitor:
Raspberry Pi
$51.50
1
$51.50
Micro SD card
$9.14
1
$9.14
USB drive
$6.99
1
$6.99
Ethernet cable
$9.40
1
$9.40
Grand Total:
$77.03
Table 3 shows the cost of each component that will be used to construct each of the
different ideas, as well as the total number of each component. It is then finally summed to get
the grand total or the over price for each idea. The table also demonstrates that there is a
relationship between the complexity and the cost of the project.
5.
Table 4: Proposed schedule
Project Idea:
Schedule:
Hours:
Cereal Dispenser
Order Parts
2
Construct Schematic of the
circuitry
6
Start the software
component, ie the code
44
Once parts arrive, construct
the prototype based on the
schematic
12
Debug and refine code
4
Prototype testing
4
Refine and or Redesign
prototype based on the
outcome of the testing
12 - 72
Prototype testing
4
Commercialize and Advertize
8
Grand Total:
96 - 156
Skier Timer
Organizing/plan
6
Plan Schematic for prototype
5
Build prototype
8
Evaluate prototype: make
adjustments, create list of
products/research where to
buy products
4
Order Products
4
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Debug Code
10
Setup
6
Test
3
Commercialize/advertise
6
Grand Total:
52
Internet Speed monitor
Defining project scope
2
Scope finalized
1
Gather materials
4
Conduct research
4
Setup
6
Scripting code
8
Test
2
Advertise
5
Grand total:
32
Table 4 demonstrates that project schedules depend on the amount of components and
the goal of the project. The group used table 4 to gauge the amount of time each project would
take to create.
The table is a detailed layout of a regular engineering team timeline, all the work that is
put into a project and every step that goes into it. It’s a reflection of the direct relationship
between complexity and the time taken to finish a project.
6.
a)
The criteria that were selected for the trade study are: complexity, commercial use
and entertainment. The complexity was a factor that was implemented into the trade
study because it will determine how hard the project is to execute and how much time is
needed to spend on the project. The commercial use is a criteria that was chosen for the
trade study because it is important that the product created has a useful application in
society. This is one component that determines the success of the product. Furthermore,
entertainment was a characteristic chosen for the trade study because it shows the
interest of the team that will be working on the project. In turn, it demonstrates the
motivation that team members have for working on the project.
b)
Table 5: Weights of the trade study criteria
Cost
Societal Impact
Complexity
Commercial
Use
Entertainment
4
3
2
4
2
The weight for the cost of the project was chosen as a 4 because it plays a big role in the
ability to create the project and work on the project. As a result, 4 was the weight chosen for the
commercial use since there should be a use for the project. To add, the profit should outweigh
the cost and effort spent on the project. Furthermore, a weight of 3 was assigned to the societal
impact criteria for the weighted trade since the goal of engineers is to solve problems and help
society. It also gives motivation to the team working on the project if the product can help others.
A weight of 2 was chosen for the complexity of the project since it has an impact on the project.
However the criteria would not deter the group from completely choosing another project. A 2
weight was also chosen for the entertainment of the project since it is good to ensure that the
team is motivated to work on the project. However, entertainment would not change the entire
project.
c)
Table 6: Weighted Trade Study
Team
Member
Cost (4)
Societa
l
Impact
(3)
Complexit
y (2)
Commercial
Use (4)
Entertainm
ent (2)
AVG Score:
Ben
1
3
1
3
3
2.2
Khadija
3
2
3
3
2
2.6
Sarah
2
1
2
2
3
2
Table 7: Weighted Trade Study Scores with the Weights calculated
Team
Member
Cost
Societa
l
Impact
Complexit
y
Commercial
Use
Entertainm
ent
AVG Score:
Ben
4
9
2
12
6
6.6
Khadija
12
6
6
12
4
8
Sarah
8
3
4
8
6
5.8
The project chosen was Khadija’s since it got the highest score in the weighted trade
study. The project scored a 6.6 in the weighted trade study. The project scored high on cost,
societal impact and commercial use. Ben’s product scored an 8 in the weighted trade study. It
scores high on societal impact, complexity and entertainment. However it scored low on the
cost. Sarah’s project got a 5.8 in the weighted trade study. It has the project scored in between
all scored for the cost, complexity and entertainment. It scored the least on the societal impact.
7.
In conclusion, the project that was chosen is the Internet Speed Monitor because it
scored the highest in the weighted trade study. After conducting the project, group members
have acquired the skills necessary to conduct a weighted trade study. They have realized the
importance of weighted trade studies in their future careers and the advantage of this method.
In fact, an important lesson that was learnt after conducting the weighted trade study is
the importance of prioritizing projects. The group members realized that not all projects can be
created. Often due to a lack of resources and time. Hence, it was discussed that the project
demonstrated to engineering students that it is important to have the ability to move on from
project ideas in order to focus on a better thought out project. Furthermore it was learnt that
having a well developed plan is extremely useful throughout the process of planning and
designing the project. For example, it was realized that it is easier to ensure that the project is
sitting in the budget range with a detailed idea of the components needed for the project. To
add, the team grasped early on in the project that a detailed plan for a project gives confidence
to the developers while they are selling their ideas to the other team members. In addition, the
team members acquired the knowledge that societal impact is a criteria that had a big effect on
the motivation of the team members. As a result, the weight for societal impacts is once of the
highest weighted criteria. It was learnt that different people have different priorities and beliefs
while choosing a project. Hence, the assignment of criteria and weights for a weighted trade
study could cause conflict. The team members also realized that weighted trade studies are
useful to choose the best project as a team. However, while conducting the weighted trade
study, it is important to be aware of the limitations to the technique. As an example, the
weighted trade study can be biased depending on the reasoning behind the criteria and its
weights that are chosen by the group.
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Appendix A: Group Contract