Homework 2: Project Proposal

parchedmoosupΗλεκτρονική - Συσκευές

29 Νοε 2013 (πριν από 3 χρόνια και 10 μήνες)

167 εμφανίσεις

Noah Brummer

Ashley Miller

Joe Rawson

Chris Clark

Homework 2
: Project Proposal


Basic
Project Descriptions


BACON (Building Ambient Conditions Over the Network)

The CAT at Portland State University has requested an environmental sensor module that can observe the
following: sound level, humidity, and temperature. The sensors will be contained in a small module that can be
connected to the network by Ethernet to be

polled by an administrator. The BACON module
may

produce a web
page that will display the status of the query. The module will be placed in server closets around the college to
remotely monitor ambient conditions of the server rooms.


RFID Feline Feeder

A
n automated cat feeder shall be developed. The feeder will dispense a measured amount of cat food when an
RFID
-
equipped cat tag approaches the receiver. There shall be a time delay between fe
edings to prevent over
-
feeding. An alarm will notify the owner wh
en the food supply is low.


RFID Feline Door

An automated cat door shall be activated by RFID. This allows protection from unwanted animals entering the
house through the
cat

door. It will involve modifying a two
-
way flap cat door to include latching mech
anisms for
home ingress. Home egress will be considered always open.

Design shall allow for the cat door to lock behind the
cat after a specified amount of time (including immediately).


Alarm Bell Electric Mini
-
Car

An old
-
style alarm bell shall be
converted in
to a mini electric car chassis.

User input

in the form of a remote

will be
provided to activate the bell, as well as direct the car.


Design Matrix


Calculating Weights for Projects:

Criteria

BACON

RFID Cat Feeder

RFID Cat Door

Alarm Bell Car

Design Time

5

3

4

4

5

Manufacturability

4

4

3

3

1

Cost

3

5

1

1

3

Usefulness

2

5

3

3

1

Deliciousness

1

5

3

1

1


These values established a given hierarchy in how we saw our projects given certain criteria. These were all fairly
subjective project criteria so we used the pairwise comparison model for ratings.




Bacon

RFID C.R.

RFID C.D.

Alarm

Design Time

Bacon

1.00

0.75

0.75

0.60

0.19

RFID C.R.

1.33

1.00

1.00

0.80

0.25

RFID C.D.

1.33

1.00

1.00

0.80

0.25

Alarm

1.67

1.25

1.25

1.00

0.31









Bacon

RFID C.R.

RFID C.D.

Alarm

Manufacturability

Bacon

1.00

1.33

1.33

4.00

0.36

RFID C.R.

0.75

1.00

1.00

3.00

0.27

RFID C.D.

0.75

1.00

1.00

3.00

0.27

Alarm

0.25

0.33

0.33

1.00

0.09









Bacon

RFID C.R.

RFID C.D.

Alarm

Cost

Bacon

1.00

5.00

5.00

1.67

0.50

RFID C.R.

0.20

1.00

1.00

0.33

0.10

RFID C.D.

0.20

1.00

1.00

0.33

0.10

Alarm

0.60

3.00

3.00

1.00

0.30









Bacon

RFID C.R.

RFID C.D.

Alarm

Usefulness

Bacon

1.00

1.67

1.67

5.00

0.42

RFID C.R.

0.60

1.00

1.00

3.00

0.25

RFID C.D.

0.60

1.00

1.00

3.00

0.25

Alarm

0.20

0.33

0.33

1.00

0.08









Bacon

RFID C.R.

RFID C.D.

Alarm

Deliciousness

Bacon

1.00

1.67

5.00

5.00

0.41

RFID C.R.

0.60

1.00

3.00

3.00

0.25

RFID C.D.

0.20

3.00

1.00

1.00

0.17

Alarm

0.20

3.00

1.00

1.00

0.17


Given these established weights from the pairwise comparison we then put that into our decision matrix and
calculated new weights for each one of the projects.


Criteria

Weights

Alternatives (Using the Pairwise comparison model for ratings)

Bacon

RFID

Cat Reader

RFID Cat Door

Alarm Bell Car

Design Time

0.33

0.19

0.25

0.25

0.31

Manufacturability

0.27

0.36

0.27

0.27

0.09

Cost

0.20

0.5

0.1

0.1

0.3

Usefulness

0.14

0.42

0.25

0.25

0.08

Deliciousness

0.07

0.41

0.25

0.17

0.17

Score

0.34

0.23

0.22

0.21


Criteria Selection

We determined that with a 10 week class (effective design time 8 weeks), design time was the most essential
factor in choosing a project. Manufacturability was also high in that we needed to be able to successfully build and
test a funct
ioning prototype.
Cost was the next highest, as we are all broke college students. Usefulness was
somewhat important to our overall goals, as we wanted to make something useful for the world around us.
Deliciousness was necessary to add because one of our
projects was named BACON and another project involved
cat food.


Rank Decisions

(Based on initial weighting system)


BACON

D
esign Time: We rated this at a 3

based on the idea that
most of the

design of t
his device would not take long.
However, the Ethernet

controller will take a considerable amount of time to configure.

Manufacturability: We rated this at a 4 since it will have no motors or moving parts, thus simplifying the
construction to just soldering and a basic enclosure.

Cost: We rated this at a 5
because the BOM will not exceed $30.

Usefulness: We rated this at a 5 because there is a professor at Portland State that has expressed interest in this
device.

Deliciousness: We rated this at a 5 because it’s bacon.


RFID Cat Feeder

Design Time: We rated
this at a 4 because the main body of the product would already exist and we would simply
be adding an RFID reader and portion
-
control system to it.

Manufacturability: We rated this at a 3 because it would involve moderate modification to manufacture.

Cost
: We rated this at a 1 because RFID receivers can be prohibitively expensive.

Usefulness: We rated this at a 3
because, while it would be a useful product for cat owners, designs like this
already exist commercially.

Deliciousness: We rated this at a 3 bec
ause cats would find it delicious.


RFID Cat Door

Design Time: We rated this at a 4 because, similar to the Cat Feeder, the main components of the product would
already exist; our addition would be a locking mechanism added to it.

Manufacturability: This
was rated at a 3 because it would involve adding substantial hardware to a door.

Cost: This was rated at a 1 because, once again, RFID readers can be expensive.

Usefulness: This was rated at a 3 because it could be a useful product for cat owners. However,

once again
products like this also exist (although very expensive!)

Deliciousness: This was rated at a 1 because it does not involve food.


Alarm Bell Car

Design time: We rated this at a 5 because we figured it would be relatively simple to integrate an e
xisting remote
control car chassis with a bell mounted on top.

Manufacturability: This was rated at a 1 because it would be difficult to secure multiple alarm bells in the style we
already have.

Cost: This was rated at a 3 because the parts involved would
be moderately priced.

Usefulness:
This was rated at a 1 because the only real purpose for this product would be for entertainment.

Deliciousness: This was rated at a 1 because it is not edible, nor does it deliver food.



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Product Planning Document

Detailed Product Description


features, specs

cogs, roi

detailed product plan

deliverables

schedule

resources

budget

risks and issues plan


assumptions

risk management

open issues


]