Project 3.1.7 – Soccer Goal Light
Brandon Lyons, Richie Phan
POE Period 4
Project 3.1.7
3/29/12
Table of Contents
Section
Design Brief
Brainstorming Sketches
and Programs (Richie)
Brainstorming Sketches
and Programs (Brandon)
Brainstorming Sketches
and Programs (Brandon
continued)
Decision Matrix &
Description
Initial Proposed Design
Sketch
Modification Sketches &
Description
Modification Sketches &
Description continued
Final Physical Solution
Final Program Solution
Conclusion Questions
Page
3
4
5
6
7
8
9
10
11
12
13
Page 2 of 13
Design Brief
Client:
Ms. Chou
Designer(s):
Brandon Lyons and Richie Phan
Problem Statement:
Soccer goals are becoming more high tech as society
advances. The players want to know when a goal is scored
electronically instead of by the referee’s decision.
Design Statement:
Design and create a control system for the local soccer
field that can detect when the ball has entered the goal and
be able to distinguish the goalie and the ball.
Constraints:




Must use Fischertechnik pieces
Presented to the class
Light must blink for 10 seconds
Must distinguish between goalie and soccer ball
Deliverables:

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Title Page
Table of contents
Design Brief
Brainstorming Sketches and Programs
Decision Matrix and Description
Modification Sketches and Description
Final Physical Solution
Final Program Solution
Conclusion Questions
Page 3 of 13
Brainstorming Sketches and Programs
Richie’s two physical brainstorms
Richie’s two program brainstorms
X Richie Phan 3/28/12
Page 4 of 13
Brainstorming Sketches and Programs
Brandon’s first hardware brainstorm
Brandon’s second hardware brainstorm
X Brandon Lyons 3/28/12
Page 5 of 13
Brainstorming Sketches and Programs
Brandon’s first software brainstorm
Brandon’s second software brainstorm
X Brandon Lyons 3/28/12
Page 6 of 13
Decision Matrix & Description
Decision Matrix
Criteria
Program and
build
difficulty
Is the goal hard
to build? Will
the program be
difficult to
make?
Program
reliability
Will the
program work
consistently?
Not a lot of
problems?
Build
reliability
Will it keep a
ball in the
goal? Will the
goal be able
to sense the
ball
effectively?
Looks
Does the goal
look like a real
goal? Is it
functional?
Ideas
Brandon’s
Brainstorm #1
3
3
2
1
9
Brandon’s
Brainstorm #2
2
2
2
2
8
Richie’s
Brainstorm #1
2
3
3
3
11
Richie’s
Brainstorm #2
2
1
1
3
7
Totals
Scale:
1 = poor (little to no effort to achieve the best design)
2 = decent (needs some fixing upon finishing)
3 = great (little to no problems once built)
We chose Richie’s first brainstorm idea because it had great looks,
reliability, and was not too difficult to build. Design would need some fixing
however because it did not receive a perfect score.
X Brandon Lyons
X Richie Phan
4/4/12
Page 7 of 13
Initial Proposed Design Sketch
These pictures are of our initial goal and program design. This design is very simple as it
only consists of one photocell and two lamps. One lamp is at the top of the goal to signal
the goal was scored and one lamp is placed in the back of the goal to help the photocell
detect the ball.
Page 8 of 13
Modification Sketches & Description
Date/Signature
March 30,
2012
X Brandon
Lyons
X Richie Phan
March 30,
2012
X Brandon
Lyons
X Richie Phan
April 2, 2012
X Brandon
Lyons
X Richie Phan
Design Modification Chart
Modification Description Modification Sketch
& Rationale
3 Lights were added
at the top of the
goal. We did this to
make the light effect
more of a strobe
light as it would
make the action of a
goal being scored
stand out much
more.
In the program we
added 3 lights that
contained very short
time delays that
would allow the
lights to
simultaneously flash
for a total of 10
seconds.
We built a structure
at the back end of
the goal to hold the
interface. This
would make the
interface and wiring
stable, making it
easier for us to plug
in the wires and
keep it steady.
Page 9 of 13
April 3, 2012
X Brandon
Lyons
X Richie Phan
April 3, 2012
X Brandon
Lyons
X Richie Phan
April 4, 2012
X Brandon
Lyons
X Richie Phan
We added another
photocell and
another light. This
would allow us to
detect when the
soccer ball was
kicked above ground
level.
When we added the
second photocell,
we needed to
program the goal so
the second one
would sense the ball
as well.
A second interface
was added to
compensate for our
extra lamp.
Page 10 of 13
Final Physical Solution
This is our final physical design consisting of two interfaces, two photocells,
two lamps, and three lights at the top of the goal. We have two interfaces for
the vast amount of lamps and photocells used in this design. In the interior of
the model consists of two lamps and photocells to track and indicate when the
“soccer ball” is scored. In the exterior we have three lamps that blink one after
another for 10 total seconds when the goal is scored.
Page 11 of 13
Final Program Solution
This picture shows the final design program with annotations.
Page 12 of 13
Conclusion Questions
1. The most difficult part of the problem was trying to distinguish the soccer ball from
a goalie-like figure. This was difficult because we were not given any specifics to
what the soccer ball or goalie figure could be. This made it difficult to judge how
we would set up the photocells. To overcome this problem we moved the
photocells to the back of the goal because we figured the goalie never goes inside
the goal to the very back of the net.
2. Two features that were not part of the design problem that were added were the
strobe light system and multiple photocells. The strobe light system consisted of 3
lights at the top of the goal that would flash quickly and simultaneously to give a
cooler light effect. Also the multiple photocells helped detect a ball that was kicked
above ground level. This made the goal a more accurate sensor for the players.
3. Brandon was mainly responsible for the documentation and deliverables, although
he did contribute to the building and programming process. He worked strenuously
on the deliverables and getting them done on time. Deliverables are important
because it is through them that your results are communicated. Richie was mainly
responsible in the building and programming of this project. However, he did assist
Brandon in the documentation process. He put forth a lot of effort and realized that
he works well individually and in a group. And he also learned that teamwork
helps him accomplish his goals at a quicker pace.
Page 13 of 13