NEW YORK (AP) -- It's called the Segway Human
Transporter, but the Pentagon is drafting the two-wheeled scooter as part of a
plan to develop battlefield robots that think on their own and communicate with
troops.
The program is still in the research phase, so the
self-balancing scooters aren't expected to report to boot camp anytime
soon.
So far, university researchers armed with Pentagon
funding have programmed Segway robots that can open doors, avoid obstacles, and
chase soccer balls _ all without human control.
Researchers say potential applications for the robots
include performing search missions on the battlefield, transporting injured
soldiers to safety, or following humans around while hauling their
gear.
Dean Kamen, the Segway's inventor, told The
Associated Press he had no qualms about enlisting his brainchild into the
military.
"You build a car and it can either be used as an
ambulance, or it can drive your troops around," he said. "My personal reason for
liking (this program) is we would love to get more Segways at universities. The
more we have our technology among the tech world, particularly the young geeks,
it could only help us."
Any useful applications developed by universities
could help kickstart badly needed sales for the fledgling scooter
company.
When the scooters were unveiled with great fanfare in
2001, Kamen's supporters predicted millions would be sold, transforming urban
transportation. But in September, when company issued a voluntary recall to fix
a problem that caused riders to fall off when the batteries run low, it was
disclosed that only 6,000 Segways had been sold.
Since the Segways retail for $3,995 and $4,495,
depending on the model, new sales to the government or any other big customer
could "help lower the price and let more people afford it," said John Morrell,
chief development engineer for privately held Segway LLC.
So far, the military program involves 15 Segways,
which were delivered to university and government research labs over the last
few months. The project is funded as part of a program in which the Pentagon is
spending $26 million this year to develop software for autonomous
systems.
Jan Walker, a spokeswoman for the Pentagon's Defense
Advanced Research Projects Agency, said the idea is to let researchers
concentrate on what the agency calls Mobile Autonomous Robot Software, rather
than the mode of transportation. The Segway, which uses gyroscopes to balance
itself, provides a common platform on which researchers can swap open-source
programs.
"One of the focuses of this program is to develop
software that would allow the robotic system to learn, so it can better perceive
its outside environment," Walker said.
The Segway can make much tighter turns than
four-wheeled robotic vehicles currently used in the military and by researchers,
and its high center of gravity means cameras and sensors can be placed several
feet above the ground _ a height more suitable for interacting with
humans.
The scooters were modified by software engineers at
Segway so they could be controlled by laptop computers. The researchers then
loaded them up with cameras, sensors, communications gear and other
gadgets.
Researchers at Massachusetts Institute of Technology
built a Segway robot that can navigate hallways and open doors.
At Carnegie Mellon University in Pittsburgh, Segways
are being used as part of a lab's ongoing efforts to build robots that can play
soccer with humans. So far, the robot can chase an orange soccer ball and kick
it. The next goal is to teach the robot the rules of the game and get it to
communicate with human players.
"They will come together not as a master-slave
relationship, with the human telling the robot what to do," , said computer
science professor Manuela Veloso. "The human and robot will be part of the same
task."
University of Southern California researchers are
working on ways to get the Segway to act as a "mule" that follows humans around,
carrying their gear. The robotic Segway hauls as much as 100 pounds.
Another USC project involves controlling the way the
Segway pitches and bounces over rough terrain so it can carry sensitive cargo,
perhaps an injured human, according to lead researcher Gaurav
Sukhatme.
A University of Pennsylvania lab is getting a
robot-controlled Segway to communicate with an autonomous robotic blimp and
small, truck-like vehicles so they can work as a team to find a designated
object in a certain geographic area. The robots would navigate and communicate
with each other autonomously, but a human would oversee the whole
network.
"The human operator can basically interrogate the
robots," said Jim Keller, a project manager. "If a robot has seen something it
thinks is interesting, it will send an alert back. The human operator will get
more images by bringing in other robots to look at the same location from
whatever their perspective is."
The researchers tried the robots out at Fort Benning
in Georgia a few months ago. But mostly they've been testing them out at the
university's football stadium.
The athletes who congregate there "roll their eyes
when they see us coming," Keller said.