================================================================================

Rover Test Log 26

================================================================================

Summary
-------

On 29 November we ran ground tests of our new rover testbed. The purpose of
the vehicle is to test software and electronics that will eventually be
incorporated into the ground rover. Tom Stutsman (below) built the rapid
prototype vehicle and got it working in a very short period of time:





The vehicle has a 2.4 GHz wireless video camera, R/C receiver and two wheels
driven by servos servos that were modified to rotate continuously:





The underside of the vehicle is shown below. The base is made of cardboard.
Steering is via differential speed control of the wheels:





A secondary purpose of the testbed is to test control algorithms to be used
for steering the Drop Vehicle. For initial testing, we tested the rover under
manual control and steered it into a simulated window built from a cardboard
box. Half of the window is covered by a transparent plastic plate simulating
a windowpane. A video of the test can be seen here (250 KB).




In the future the plan is to add computer control, with a PC controlling an
R/C transmitter through a serial port interface.

================================================================================

   Test_ID:  70
      Date:  2006/11/29 (Wed)
      Time:  11:59
   Vehicle:  Rover Testbed
      Mass:  330 g                              (11.6 oz)
  Location:  PCC West Campus, Physics Lab

================================================================================
Last updated 2006/12/02 FLM