Pioneer 3TM User Manual

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What is Pioneer? 
Pioneer 1 and AT 
Figure 5. The original Pioneer 1s 
Intended mostly for indoor 
use on hard, flat surfaces, 
the Pioneer 1 had solid 
rubber tires and a two-
wheel differential, 
reversible drive system 
with a rear caster for 
balance.  The Pioneer 1 
came standard with seven 
sonar range finders (two 
side-facing and five 
forward-facing) and 
integrated wheel encoders. 
Software-wise, the Pioneer 1 initially served as a platform for SRI International's AI/fuzzy 
logic-based Saphira robotics applications development.  But it wasn't long before its 
open architecture became the popular platform for the development of a variety of 
alternative robotics software environments.  
Many developers created software that interfaced directly with PSOS.  Others extended 
the capabilities of Saphira (PAI and P-LOGO are two good examples), while others have 
implemented alternative robotics-control architectures, such as the subsumption-like 
Ayllu. 
Functionally and programmatically identical to 
the Pioneer 1, the four-wheel drive, skid-steering 
Pioneer AT was introduced in the Summer of 
1997 for operation in uneven indoor and outdoor 
environments, including loose, rough terrain. 
 
Figure 6.  The Performance 
PeopleBot sports an attractive body
design and bundled systems, 
including voice synthesis and 
recognition for human-interaction 
research and applications. 
Except for the drive system, there are virtually no 
operational differences between the Pioneer AT 
and the Pioneer 1:   The integrated sonar arrays 
and microcontrollers are the same. The 
accessories available for the Pioneer 1 also work 
with the Pioneer AT.   Further, applications 
developed for the Pioneer 1 work with little or no 
porting to the Pioneer 2s and 3s. 
Pioneer 2 and PeopleBot 
The next generation of Pioneer Mobile Robots—
including the Pioneer 2-DX, -CE, and -AT, 
introduced in Fall 1998 through Summer 1999, 
improved upon the Pioneer 1 legacy while 
retaining its many important advantages.
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Indeed, in most respects, particularly with 
applications software, Pioneer 2 works identically 
to Pioneer 1 models. 
The ActivMedia Robotics Pioneer 2 models -DX, -
DE, -DXe, -DXf, and -AT, and the V1 and 
Performance PeopleBot robots used a high-
 
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 Price/performance ratio included!  The much more capable and expandable Pioneer 2 was introduced four 
years later for just a few hundred dollars (US) more than the original Pioneer 1.