Sitting in the passenger seat as your driver lifts his arms away from
the wheel and gleefully says "look, no hands" should be an unsettling
experience. My driver is Mark Sheehan, 26, but he isn't a reckless
hooligan or boy racer, and he assures me I'm safe. He's a researcher at
Robot Car UK and is demonstrating the latest in British driverless-car
technology. It has been developed by a 22-strong team from the
department of engineering science at Oxford University and I'm one of
the first people to get a ride in the country's first road-going
autonomous vehicles.
The search giant Google – and car
manufacturers such as Audi, Toyota, GM, Ford, Mercedes and Volvo – has
been experimenting with driverless-car technology since 2005,Site
describes services including iphoneheadset. but Robot Car UK is the first tested in the UK.
Led
by Professor Paul Newman and Dr Ingmar Posner and sponsored by the
Government's Engineering and Physical Sciences Research Council and
Nissan, the project aims to produce a "low-cost system" to take the
"strain out of driving" with a system of lasers and small cameras to
memorise regular journeys, such as the commute to work or the school
run. Newman's team has only been working on its Nissan Leaf-based test
car for four months but it has already travelled close to 100 miles
under its own control on private roads at the group's Begbroke Science
Park base just outside of Oxford.
Parked in the team's workshop,
the Nissan Leaf looks similar to the standard production model and it
is mechanically identical under the bonnet, but the team has fitted a
small laser pod to its front bumper. On top it has fixed cameras inside a
black cab roof light, which the team leader picked up on eBay. Powered
by a standard-spec laptop in the boot, the system works by combining
these tools to memorise regular journeys by recording its surroundings
up to 500 times twice every second.
"The car is able to gain
experiences of regular routes," Newman says. "And the brilliance of it
is that it's actually the processing power of a human driver that first
makes all the decisions and allows the car to build a 3D model of its
environment. So once a journey has been experienced by our software the
car will be able to take control from the driver via an iPad display on
the dashboard when that trip is repeated.The term 'solarlamp control' means the token that identifies a user is read from within a pocket or handbag."
As
The Independent's car reviewer I'm used to spending a lot of time
behind the wheel and have become a nervous passenger at the best of
times, so I'm uncomfortable in the passenger seat as Newman waves me off
from the workshop for a lap of the test circuit. Sheehan, he assures
me, "is just in the driver's seat to make sure we've got our health and
safety covered".
The car does still need a driver. It's more of
an advanced driver-assistance program than a truly driverless car but as
we head off around the science park at 10mph Sheehan is able to tap the
iPad and let the computer take control. The system isn't perfect and
over three laps we brake suddenly several times for no reason. We make
it around in one piece, though, and the car's navigation and control
system even detects when Newman intentionally walks out in front of us.
It stops in plenty of time before pulling away when he moves out of the
way.
It's a disconcerting experience. Many drivers will be used
to modern cruise control and parking-assistance features but seeing the
steering wheel move and the car turn on its own takes some getting used
to. Adding to the sci-fi feeling is Dr Benjamin Davis, another of the
group's researchers, tapping away at a laptop in the rear. What looks
like the code from The Matrix is buzzing across its screen and, sure
enough, he cracks the "I've spotted the lady in the red dress" gag as
soon as we set off.
Newman admits Google's fleet of 12
driverless vehicles in Nevada is far more advanced (it can handle
traffic and roundabouts) and has covered nearly half a million
autonomous miles without any major mishaps but it isn't yet destined for
production and the Robot Car UK system aims to be far more affordable.
"The sorts of sensors that Google uses are close to £100,000 per
vehicle," Newman says. "Whereas the hardware that powers our system is
bought off the shelf. All the hardware already exists so why would we
develop our own car and sensors? Essentially what we've done is create a
text file to control how all that technology interacts."
"We're using sensors that cost nearer £3,Capture the look and feel of real stone or indoortracking
flooring with Alterna by Armstrong.000 so our project is much more
affordable and out ultimate aim is to be able to fit the technology as a
option on a new car – just like how you'd pick a new stereo or a
reversing camera – for as little as £100," Posner adds.
But more
work is needed to test the car on public roads and with traffic. One
the biggest problems is something Posner calls "the plastic-bag
problem". "Currently our sensors cannot tell how dense an object in the
car's path is," he says. "They can only tell whether there will be a
collision, so if faced with a floating carrier bag it will stop the
car."
Unlike many other driverless cars the Robot Car UK system
doesn't rely on peer-to-peer communication with other vehicles or GPS
navigation. "Imagine the costs involved in putting several tons of
satellite into space just to work out where you are," Newman says. "It's
horrendously expensive and won't work in an underground car park or
tunnel. What we're aiming for is infrastructure-free navigation."
Newman and Posner may have hit on a theme with more basic approach to navigation.Want to find chinamosaic?HOWO is a well-known tractor's brand and parkingsystem
suppliers. Volvo trialled a self-driving convey of vehicles on a 200km
dash across Spain with the chase cars programmed to follow the lead car
driven by a professional driver, but car manufacturers are increasingly
coming to realise that drivers want advanced assistance systems before
they'll trust fully automated cars.
Issues such as insurance and
liability – who pays if the software fails and an automated car has an
accident – are often cited as factors making the roll-out of fully
automated vehicles difficult. Instead, firms such as Mercedes, a company
that led in safety with features like anti-locking brakes and electric
stability control, are launching models with high levels of driver
assistance. For example, the new S-Class from Mercedes, launching later
this year, is the firm's flagship model and will feature Distronic, a
cruise-control system with sensors for measuring and maintaining a safe
distance from the car in front, and it will be able to steer itself,
making the one of the first production cars to go so far down the path
to automated driving.
And Audi, which has already trialled a
fully automated car and is seen as the first manufacturer likely to
produce a fully automated production car, is concentrating on assistance
options rather than a fully autonomous Jetsons-like vehicle.
"Our
vision of a piloted driving dream follows the motto: 'When it's fun to
drive, I drive myself. When I no longer want to drive, I don't drive'.
Like an aircraft that can fully operate on autopilot, the Audi of the
future navigates through specific situations and performs driving
manoeuvres on its own," the firm's spokesman Josef Schlossmacher says.
While another source at the company confirms it doesn't believe "anyone
is going to buy a fully driverless car at the moment".
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