World has become flat and life has become really easy today.Bi directional visitor counter is simple and effective project used to count number of persons in an auditorium, classrooms.etc. It can save lots of human power which is very crucial in todays world.

1. Bidirectional Visitor Counter
By Under the guidance of
T.Sruthi(10M61A04B3) Mrs.N.Jayamma M.TECH
S.Thrinesh(11M65A0415)
T.Pooja(10M61A04B5)
K.Gurunadh(10M61A0478)

2.  Visitor counting is simply a measurement
of the visitor traffic entering and exiting
offices, malls, sports venues, etc.

6. AT89C52
MICROCONTROLLER
RAM 256 bytes
Flash 8KB
Number of
timers/counters
3(16-bit each)
Number of interrupt
sources
8

8. The main modules here are
 AT89C52 Micro Controller
 Oscillator
 sensor module
 LCD display

10.  This is a very basic circuit and has many shortcomings
 For example, this system will not differentiate between
a person and any other obstacle interrupting the
sensors.
 Also this circuits holds good enough for only one
person entering at a time.
IMPROVEMENTS
 Usage of cameras

11. This is very simple and effective idea which can be used in
many places like hostel and hotel rooms to save energy.
Thanks to our faculty for guiding us in this project.