1.1 BACKGROUND OF THE PROJECT
the operator; the operator is also exposed to health hazards
when carrying out his or her duties. These health hazards might be in terms
of electrocution, skin burn or bruises.
To overcome the above mentioned disadvantages that are
associated with manual operation of systems, the recent systems are
designed with mechanisms that enable them to carry out the required
operations automatically. To this effect, the system carries out the required
operation by them. The mechanism of the system can only be altered
during servicing of the machine. With automatic operation of systems, the
stress involved with handling the systems are reduced drastically.
The automatic gate control system is one of the systems that operate
automatically. The system simply detects the presence of object at the front
of the gate and then, opens the doors of the gate automatically. It
incorporates sensors that are mounted at strategic positions and which has
the capability of detecting objects. These systems are used in public offices
where people often make use of the doors.
1.2 AIMS AND OBJECTIVE OF THE PROJECT
The main aim of the design is to practically obtain a system that
opens and closes a given gate automatically, when there is presence of
cars or persons. The system is designed in such a way that it has sensors
that senses the presence of people.
1.3 SCOPE OF THE PROJECT
The design and implementation of microcontroller based automatic gate
controller utilizes the characteristic operation of both passive and active
electronic components such as resistors, capacitors and integrated circuits.
The circuit is designed in a prototype forms and it is only meant for indoor
demonstration of how the system works. The system also uses a
programmable integrated circuit in its control unit. Meanwhile, this project,
microcontroller based automatic gate control has sub units such as:
Power supply unit
The control section
The gate drive section
The sensor unit