25-04-2012, 04:53 PM
DEVELOPMENT OF A TRAFFIC LIGHT CONTROL SYSTEM USING
PROGRAMMABLE LOGIC CONTROLLER
cd2636.pdf (Size: 1.93 MB / Downloads: 468)
INTRODUCTION
Overview of traffic light system
Ever since Roman times, society has tried to control traffic. Even the fabled
Roman road system created a conflict between pedestrian and equine travelers.
However, a practical solution was not developed until the mid-nineteenth century,
when J. P. Knight, a railway signaling engineer, created the first traffic signal, which
was installed near Westminster Abbey in London, England in 1868. Unfortunately,
the device exploded, killing a police officer, and its use was discontinued after being
in operation for only a short time.
Overview of Programmable logic controller (PLC)
A programmable logic controller (PLC) is an industrial computer used to
control and automate complex systems. Programmable logic controllers are a
relatively recent development in process control technology. It is designed for use in
an industrial environment, which uses a programmable memory for the integral
storage of user-oriented instructions for implementing specific functions such as
logic, sequencing, timing, counting, and arithmetic to control through digital or
analog inputs and outputs, various types of machines or processes.
Project objectives
This project is about develop a new practical traffic light control system
which the system will solve the traffic congestion issue. To develop the project,
there are two objectives that must be accomplished which are:-
i. Develop a new traffic light control system controlled by programmable logic
controller (PLC).
ii. Implement the system on a model of a traffic light.
Problem statement
The monitoring and control of city traffic light is becoming a major problem
in many countries. The increasing number of vehicles and the lower phase of
highways developments have led to traffic congestion problem especially in major
cities such as Kuala Lumpur, Georgetown, Johor Bahru, and Ipoh. Travel time,
environment quality, life quality, and road safety are all adversely affected as a
result of traffic congestions. In addition, delays due to traffic congestions also
indirectly affect productivity, efficiency, and energy losses.
There
PROGRAMMABLE LOGIC CONTROLLER
cd2636.pdf (Size: 1.93 MB / Downloads: 468)
INTRODUCTION
Overview of traffic light system
Ever since Roman times, society has tried to control traffic. Even the fabled
Roman road system created a conflict between pedestrian and equine travelers.
However, a practical solution was not developed until the mid-nineteenth century,
when J. P. Knight, a railway signaling engineer, created the first traffic signal, which
was installed near Westminster Abbey in London, England in 1868. Unfortunately,
the device exploded, killing a police officer, and its use was discontinued after being
in operation for only a short time.
Overview of Programmable logic controller (PLC)
A programmable logic controller (PLC) is an industrial computer used to
control and automate complex systems. Programmable logic controllers are a
relatively recent development in process control technology. It is designed for use in
an industrial environment, which uses a programmable memory for the integral
storage of user-oriented instructions for implementing specific functions such as
logic, sequencing, timing, counting, and arithmetic to control through digital or
analog inputs and outputs, various types of machines or processes.
Project objectives
This project is about develop a new practical traffic light control system
which the system will solve the traffic congestion issue. To develop the project,
there are two objectives that must be accomplished which are:-
i. Develop a new traffic light control system controlled by programmable logic
controller (PLC).
ii. Implement the system on a model of a traffic light.
Problem statement
The monitoring and control of city traffic light is becoming a major problem
in many countries. The increasing number of vehicles and the lower phase of
highways developments have led to traffic congestion problem especially in major
cities such as Kuala Lumpur, Georgetown, Johor Bahru, and Ipoh. Travel time,
environment quality, life quality, and road safety are all adversely affected as a
result of traffic congestions. In addition, delays due to traffic congestions also
indirectly affect productivity, efficiency, and energy losses.
There