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TheStreet Open House

Toshiba Shows Four-legged Robot For Nuke Disaster

YURI KAGEYAMA

YOKOHAMA, Japan (AP) â¿¿ Toshiba Corp. has developed a robot it says can withstand high radiation to work in nuclear disasters, but it's not clear what exactly the robot is capable of doing if and when it gets the go-ahead to enter Japan's crippled Fukushima Dai-ichi nuclear plant.

The four-legged robot can climb over debris and venture into radiated areas off-limits to humans. One significant innovation, Toshiba said, is that its wireless network can be controlled in high radiation, automatically seeking better transmission when reception becomes weak.

But the machine, which looks like an ice cooler on wobbly metal legs, also appears prone to glitches. The robot took a jerky misstep during a demonstration to reporters, freezing with one leg up in the air. It had to be lifted by several people and rebooted.

The robot was also notably slow in climbing a flight of eight steps, cautiously lifting its legs one by one, and taking about a minute to go up each step.

With obstacles that aren't as even and predictable as steps, such as the debris at the Fukushima plant, it may need as much as 10 minutes to figure out how to clear the object, Toshiba acknowledged.

And if it ever falls, it will not be able to get up on its own.

Still, Tokyo Electric Power Co. said it might use the robot to inspect the suppression chamber of the nuclear plant where a devastating meltdown occurred after a mammoth tsunami slammed into northeastern Japan on March 11, 2011.

Toshiba began developing the robot with hopes it would prove useful in helping to decommission the plant. No human has been able to enter the highly radiated chamber since the tsunami disaster.

"We need this to go in and first check what is there," Toshiba Senior Manager Goro Yanase said Wednesday.

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