Japan needs new robots for nuke crisis

2011-05-03 13:35
New robots will be deployed in the crippled Fukushima Daiichi nuclear plant. (AP)

New robots will be deployed in the crippled Fukushima Daiichi nuclear plant. (AP)

Multimedia   ·   User Galleries   ·   News in Pictures Send us your pictures  ·  Send us your stories

kalahari.com

Tokyo - Japan may be at the forefront of robotics and its children raised on cartoons of robot heroes and villains, but the country has so far had to rely on US-made machines for help tackling its nuclear crisis.

The massive earthquake and tsunami on March 11 knocked out reactor cooling systems at the Fukushima nuclear power plant northeast of Tokyo, where workers are battling to prevent radiation leaks and a total meltdown.

Although Japan is reliant on atomic power and leads the world in developing humanoid machines and industrial robots it has not developed any robots to tackle nuclear accidents.

Plant operator Tokyo Electric Power Company (Tepco) has sent in a pair of US-made crawler PackBot robots to examine areas where radiation from the rubble left by explosions is too high for humans to enter.

Experts say the government has not provided enough funding to develop its own specialised disaster robots, which have no commercial market.

Money

"In the case of housekeeping robots, the market is there and so the companies can continue the development," said Hajime Asama, professor of engineering at Tokyo University and a member of a robot taskforce set up after the disaster.

"In the case of the United States, the military invests a lot of money for this kind of robot. But in Japan it is prohibited to make military robots," he said.

A mistaken belief that such a nuclear disaster would never happen in Japan is also to blame, he said.

"That's why the Japanese government did not invest sufficient money to develop this kind of robot system. They invested initial money for developing the robot system but they didn't continue," said Asama.

Fellow taskforce member Satoshi Tadokoro, professor of robotics at Tohoku University, who specialises in rescue robots, said more than one type of robot would be needed, given the various problems within the plant.

For the moment, the taskforce is recommending the use of the compact Japanese-made Quince robot, which has two main caterpillar tracks and four smaller protruding ones which can be angled up or down to enable it to climb over debris and up stairs.

Tepco says it is considering using the robot but there is no clear timetable for putting it to work. It takes three days to train a worker to use it.

Quince

"We have heard the robot is good at moving around in rubble-scattered places. If we introduce it, we'll utilise it for on-the-spot surveys" in reactor buildings, a Tepco spokesperson said.

Tadokoro said Quince was well-suited for the task.

"Within the nuclear plant if the second and third floors need to be checked, there may be debris and water and the surface might be slippery. I think Quince is most suitable in these circumstances," he said.

"The most difficult thing is to have enough capacity to move around the nuclear plant. It is not very spacious, and filled with debris, so the robot has to go through this in order to check deeper inside the building."

Japan had to come up with improvised response measures to the nuclear calamity, including using fire trucks and helicopters shielded with lead plates to dump water on the overheating reactors and spent fuel rod pools.

"I believe that robots can't do everything and that some things need to be done by humans, and some need heavy machinery," said Tadokoro.

"So by combining all things available, we need to bring the current situation to a cold shutdown."

Safe levels

Tepco has said it expects to bring all six reactors at the stricken plant into "cold shutdown", where reactor temperatures and pressure drop to safe levels, by sometime between October and January.

While humanoid robots such as Honda's Asimo already exist, experts say it will be some time before such machines are capable of working like a human inside a nuclear plant.

Honda on its website answers the question "Could you make Asimo take care of the nuclear accident?"

It says Asimo "has been developed to be useful for humans in the future, but at the moment unfortunately the technology has not reached the point where it can do what you have requested. We ask for your understanding."

"This robot took about three years to develop, but compared to a human it's just taking baby steps. For a robot to be able to work at Fukushima we still need further research and development," said Kazuhito Yokoi, deputy director of Intelligent Systems Research Institute which developed the dancing HRP-4 humanoid robot.

Asama said the operations centre was discussing which robots to use in the plant.

"They don't care whether the robot is made in Japan or outside. They would just like to use the best, optimal robots for the missions," he said.
- SAPA
Read more on:    japan  |  nuclear  |  robotics  |  japan earthquake
NEXT ON NEWS24X
SHARE:

Read News24’s Comments Policy

24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
1 comment
Add your comment
Comment 0 characters remaining
 

Inside News24

 
/Fashion
 

6 life hacks you simply have to know

A few simple tricks can make your life so much easier!

 
 

For chic geeks...

Device lets disabled people talk through their nose
It’s THIS easy for someone to steal your ATM pin!
This is why you should install iOS 8
17 photo illusions that look so real

Jobs in Cape Town [change area]

Property [change area]

Travel - Look, Book, Go!

Magical Massinga

Spend 5 nights at the gorgeous Massinga Beach Lodge in Mozambique and only pay for 4 from R13 220 per person sharing. Includes return flights, accommodation, transfers and romantic turndown. Book now!

Kalahari.com - shop online today

Pre-order your iPhone 6 at kalahari.com

Hurry and pre-order your own iPhone 6 now at SA’s favourite online store!

Bargain box – 60% off

Reduced prices, very limited stock. While stocks last. Hurry and shop now!

Mind blow low prices on electronics

Get either the Prestigio multiphone or Proline tablet 7” tablet for only R699. Offers valid while stocks last. Shop now!

30% off Barbie toys

Save 30% on all Barbie toys and accessories. Offer valid while stocks last. Shop now!

Baby extravanganza month at kalahari.com

Celebrate baby month with a wide range of awesome baby products. Offers valid while stocks last. Shop now.

OLX Free Classifieds [change area]

Samsung Galaxy s4

Mobile, Cell Phones in South Africa, Western Cape, Cape Town. Date October 24

Best bargain in big bay

Real Estate, Houses - Apartments for Sale in South Africa, Western Cape, Cape Town. Date October 25

VW Golf 6, 1.6 Trendline (Excellent condition)

Vehicles, Cars in South Africa, Western Cape, Cape Town. Date October 25

Horoscopes
Aquarius
Aquarius

Something may be bothering you. A flooded mind and impulsive reactions are not a good combination as you are not thinking clearly....read more

There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.








Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.