University of Central Florida Four Way Traffic Light Signal Capstone Final project Lapview.
The project needs to download lap view, and the project about signal lights.
Design a Four-way Traffic light signal in LabVIEW
Final Report Specification
The final report should include the following:
– Cover page with title, date, author course number, name, and section – Table of contents and list of figures and tables
– Introduction
– Background information
– Finite State Machine
– Detailed explanation of Lab view logic code
– Conclusions
– Bibliography/References/Works cited
In the literature there are many implementations of Traffic light signal in lab view. Students are encouraged to derive ideas from them. However, no plagiarism/copying of lab view files will be allowed. The grading shall also be done based on the novelty and efficiency of the implementation and demonstration. Final Project (LabVIEW Spring-2020)
Design a Four-way Traffic light signal in LabVIEW as shown in Figure 1.
Figure 1 Four Way Traffic Light System
Specifications:
1. A traffic light should consist of three states: Red light, Green light and yellow light. Each traffic light cycles
through its states, from Red to Green to Yellow and back to Red. Each state corresponds to a phase in the traffic
light cycle.
Time
Description
t=0
t=6
t = 12
t = ..
t=
At the start of the simulation, both traffic
lights are red.
After 6 seconds (REDDELAY), there are
cars waiting in both streets. Both traffic lights
request a green light by
setting greenLightRequested = true.
After another 6 seconds (REDDELAY):
Light 1 turns green,
setting greenLightLocked = true and greenLi
ghtRequested = false.
Light
1
Red
Light
2
Red
greenLightReque
sted
false
greenLightLoc
ked
false
Red
Red
true
false
Green
Red
false, then true
true
Yello
w
Red
Red
true
true
Green
false
false, then true
Light 2 requests a green light by
setting greenLightRequested = true.
After 10 seconds (MINGREENDELAY),
Light 1 turns yellow.
After 2 seconds (YELLOWDELAY):
Light 1 turns red,
setting greenLightLocked = false.
Light 2 turns green,
setting greenLightLocked = true and greenLi
ghtRequested = false.
t=
t=
t =
.
t =
.
After 6 seconds (REDDELAY), Light 1
requests a green light by
setting greenLightRequested = true.
Light 2 turns yellow 10 seconds
(MINGREENDELAY) after turning green.
After 2 seconds (YELLOWDELAY):
Light 2 turns red,
setting greenLightLocked = false.
Red
Green
true
true
Red
true
true
Green
Yello
w
Red
false
false, then true
Green
Red
true
true
Light 1 turns green,
setting greenLightLocked = true and greenLi
ghtRequested = false.
After 6 seconds (REDDELAY), Light 2
requests a green light by
setting greenLightRequested = true.
2. Follow the specification of the standard traffic light. The lights should follow a sequence from green to
yellow and yellow to red with specific time delay.
Note: a. Turn signal specification is not required.
b. Pedestrian specification not required.
3. Timer should start at count 0 with red light.
Figure 2 Controlled Sequence of Traffic Light
Parameters
Preset Value
Description
REDDELAY
6 seconds
Traffic light begins to red
MAXREDDELAY
1.6 seconds
Before turning Red to Green
GREENDELAY
1.8 seconds
Maximum length of time that the traffic light remains green.
MINGREENDELAY
10 seconds
Minimum length of time that the traffic light remains green.
YELLOWDELAY
2 seconds
Length of time that the traffic light remains yellow.
The project has the following tentative timeline:
Week 1: Receive combinations. Clarify ambiguities. Nothing to turn in.
Week 1: Turn in a finite-state-machine (FSM) diagram or ASM if you prefer of how you plan to design your
Lab view(10 points).
Week 2: Turn in a progress report. Highlight what stages of the FSM/ASM you have accomplished and any
technical difficulties (10 points).
Week 3: Demo Project (50 points)
Week 3: Submit a final report online (30 points).
Final Report Specification
The final report should include the following:
– Cover page with title, date, author course number, name, and section
– Table of contents and list of figures and tables
– Introduction
– Background information
– Finite State Machine
– Detailed explanation of Lab view logic code
– Conclusions
– Bibliography/References/Works cited
In the literature there are many implementations of Traffic light signal in lab view. Students are
encouraged to derive ideas from them. However, no plagiarism/copying of lab view files will be allowed. The
grading shall also be done based on the novelty and efficiency of the implementation and demonstration.
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