From driver-less cars to delivery drones, a new generation of robots is about
to revolutionize the way people work, drive and shop. But there is one
area where robots are already entrenched and spreading fast: the
industrial sector, especially manufacturing and storage.
Robots
have long toiled alongside workers in factories and warehouses, where
they load boxes with items ordered online, drill and weld car parts, or
move food from one conveyor belt to the next.
Now many experts worry about the dangers that robots pose to the humans who work alongside them.
Robots
have caused at least 33 workplace deaths and injuries in the United
States in the last 30 years, according to data from the
Occupational Safety and Health Administration. That may not sound like many, but the number may well understate the perils ahead.
Unlike
today’s robots, which generally work in cages, the next generation will
have much more autonomy and freedom to move on their own.
“In
order for robots to work more productively, they must escape from their
cages and be able to work alongside people,” said Kent Massey, the
director of advanced programs at HDT Robotics. “To achieve this goal
safely, robots must become more like people. They must have eyes and a
sense of touch, as well as the intelligence to use those senses.”
Until
now, robots have largely been used in manufacturing, particularly in
the auto industry. They have mostly been “dumb robots,” designed for
repetitive tasks that are dirty, dangerous or dull.
Regulations
have required that the robots operate separately from humans, in cages
or surrounded by light curtains that stop the machines when people
approach. As a result, most of the injuries and deaths have happened
when humans who are maintaining the robots make an error or violate the
safety barriers, such as by entering a cage.
But
the robots whose generation is being born today collaborate with humans
and travel freely in open environments where people live and work. They
are products of the declining cost of sensors and improved artificial
intelligence algorithms in areas such as machine vision. Google’s newest
driverless car, for instance, is completely automated, without a
steering wheel or a brake pedal.
Along
with the new, free-roaming robots come new safety concerns. People
worry about what happens if a robot spins out of control, or the first
time a driverless car kills someone.
“It’s
the fear of robots,” said Bryant Walker Smith, a fellow at the Center
for Internet and Society at Stanford Law School who studies driverless
cars. “There’s something scarier about a machine malfunctioning and
taking away control from somebody.”
As
a result, these robots require extra protective measures. The Google
car has a padded front to soften any blow if the robot or a human causes
an accident. The windshield is plastic, and the front of the car is
rounded so it is less likely to hurt or trap pedestrians or cyclists.
Another
robot, Baxter, which does repetitive jobs in workplaces like packaging
small items, is designed to sense humans and stop before coming in
contact with them. It also has a display screen that cues those who are
nearby about what the robot is focusing on and planning to do next.
If
robots and humans are going to live and work together, Baxter and its
progeny will need more of these advances. To develop them, the robots’
creators will need to draw on one of the most human of emotions:
empathy.