Scientists recently demonstrated a laser-guided robot, dubbed the
EL-E, which is able to grab items that users point at with a laser
pointer. Developed by scientists from Georgia Tech and Emory
universities, the EL-E has the possibility of many useful
applications, such as replacing service animals and helping patients
with degenerative disease.
The EL-E, which is powered by a
single Mac mini that sits at its base, stands at 5 ½ feet
tall. Its exterior is dominated by sensors, lasers and cameras -- all
of which help the robot work and find the item that has been targeted
by the user.
To work the robot, users are required to
simply point a laser at an object for a few seconds. To confirm the
robot has received the command, it emits a beep and proceeds to move
to the object, rolling towards it using its three wheels. Once it is
in range, the mechanical arm of the robot grabs the item, and when
the user points the laser at his or her foot, it moves back to the
user. The robot then searches for a human face before offering the
item. According to researchers working on the robot, the EL-E has a
90% success rate.
Talking to the Associated Press,
Charlie Kemp, director of Georgia Tech's Center for Healthcare
Robotics and the EL-E's designer, says that the robot “creates a
clickable world. The entire world becomes a point and click
interface. Objects become buttons. And if you point at one, the robot
comes to grab it."
The robot is still in the early stages
of its development. Its mechanical crane can only lift a maximum of
1.2 pounds. Researchers are optimistic about the possibilities the
robot holds. They envision a future where the EL-E will one day be
able to open doors, turn off light switches, and guide patients
through the halls.
In designing the robot, the design
team wants to change the conventional rules for robots. Kemp believes
that many times the primary focus of engineers is to make a robot act
like a human. However, in pursuit of making the robot more like a
human, the engineers end up not looking at other avenues through
which robots can interact with people.
Researchers plan to
test the robot in a real-world environment this summer with patients
who have degenerative diseases. The cost of constructing the robot
has not been disclosed.