User manual

CHAPTER 1
INTRODUCTION
1.1 PROJECT BACKGROUND
In a public place such as shopping malls and cinemas, data on the number of
visitor is frequently needed for marketing research or statistic purposes. Usually the
counting process is done manually by the officers who guard the entrance. If this
process is done for a long period of time, it will be prone to human errors. Same goes
to a room such as laboratory, main hall, mosque or bedroom. A counter can be
implemented to save energy by a specific system. For instance, lighting system is one
of the major problems nowadays which is wasted because of human negligence. To
overcome this problem, a system which is able to count automatically should be
developed. In this new modern technology, new design and new creation had been
made to save power consumption and energy. Various types of system and
development improved. Power electronics technology uses electronic circuits to
convert and control electric energy with optimum efficiency. Today, this technology
is part of most electrically powered machines and devices. Power electronics
technology also the key to increasing both the amount of electric power transmitted
over the grid and the efficiency of power use. Moreover, centre researchers have
made significant contributions in three areas critical to power electronics evolution:
powering of a new generation of microprocessors; developing technologies for