Issue
148 November 2002
Ultrasonic
Homing Device
Start
•
Reveiver • Ear
Mounting • The Transmitter
• Software • Options
• Sources and PDF
OPTIONS
Instead of mounting the
receivers on the robot and the transmitter at the base
station, you can put the receivers at the base station
while the robot transmits the pings. You can also use
multiple receivers to pinpoint the robot in a room.
They could use the existing ultrasonic radiation from
the robot’s many sources and communicate to the robot
its location relative to the receivers via a radio link.
Similarly, multiple transmitters
could be located around the room, and your robot could,
over a radio link, command each one to ping to determine
which one it’s closest to. Note that the scheme presented
here is not restricted to the 8-pin PIC series of microcontrollers;
therefore, it’s easily adaptable to the controller of
your choice.
