04-06-2012, 12:20 PM
REMOTE-CONTROLLED LAND ROVER—A DIY ROBOTIC PROJECT
Remote Controlled Land Rover.pdf (Size: 500.97 KB / Downloads: 123)
Robotics is a fascinating subject—
more so, if you have to
fabricate a robot yourself. The
field of robotics encompasses a number
of engineering disciplines such as
electronics (including electrical), structural,
pneumatics and mechanical.
The structural part involves use of
frames, beams, linkages, axles, etc. The
mechanical parts/accessories comprise
various types of gears (spurs, crowns,
bevels, worms and differential gear
systems), pulleys and belts, drive systems
(differentials, castors, wheels and
steering), etc. Pneumatics plays a vital
role in generating specific pushing and
pulling movements such as those
simulating arms or leg movements.
Pneumatic grippers are also used with
advantage in robotics because of their
simplicity and cost-effectiveness. The
electrical items include DC and stepper
motors, actuators, electrical grips,
clutches and their control. The electronics
part involves remote control,
sensors (touch sensor, light sensor, collision
sensor, etc), their interface circuitry
and a microcontroller for overall
control function.
Project overview
What we present here is an elementary
robotic land rover that can be controlled
remotely using primarily the RF
mode. The RF remote control has the
advantage of adequate range (up to
200 metres with proper antennae) besides
being omnidirectional. On the
other hand, an IR remote would function
over a limited range of about 5
metres and the remote transmitter has
to be oriented towards the receiver
module quite precisely. However, the