AUTOMATIC SURVELLIANCE CAMERA
PANNING SYSTEM FROM PC
ABSTRACT
The project
is designed for using surveillance camera on a panning platform i.e. moving the
camera, mounted on a DC motor in clockwise and anticlockwise direction in
periodic intervals. For security reasons, surveillance cameras are used
everywhere like roads, shops, colleges and offices. Surveillance cameras are
basically stationary devices therefore 360 degree coverage is not possible. However,
270 degree coverage is possible if this proposed system is interfaced with the
camera along with power to control the panning speed. One
can follow a moving object.
This
system is interfaced with a PC where the input is given from keyboard using
hyper terminal. The functionality of this circuit is, that once the PC sends a
command to the microcontroller (of 8051 family) through level shifter IC (used
to convert the voltage level from PC to that of the microcontroller), the microcontroller
analyses this signal and activates the motor driver to drive it at the desired
speed. The program on the microcontroller is executed based on the input signal
from the PC to develop output to drive the motor through motor driver IC.
Further
this project can be enhanced by interfacing it to a tilt arrangement for up and
down movement besides 270 degree pan movement. It can also be wirelessly
controlled (using RF technology) to manually adjust the camera movement or the
stop the panning movement if desired with a RF remote.
NOTE:
The project works only on operating systems having hyper
terminal (E.g. Windows XP). The computer must have a RS232 serial port.
BLOCK DIAGRAM
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