Researchers in Japan have developed an advanced snake-shaped robot that can climb ladders and wind its way up drainpipes, raising hopes that such devices will soon be used in surveying inaccessible locations in disaster-hit areas. The new robot, which is 2.5 meters long and weighs 6kg, can be used for the inspection of collapsed buildings, according to Fumitoshi Matsuno, the robotics professor at Kyoto University leading the project. His team aims to put the device into practical use within two to three years, as reported by Nikkei Japan.
The snake, which is now patented technology, has been developed by UKAEA’s RACE (Remote Applications in Challenging Environments) in a GPB2.7 million (USD3.4 million), a seven-year project. The snake will be delivered as part of EUROfusion’s DEMO programme, which will be the successor to the ITER fusion device which is currently being built in southern France, as reported by World Nuclear News (WNN).
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The device can climb up and down a ladder by altering its body shape. Using a laser sensor attached to the tip, it detects the distance between each rung, works out the ideal trajectory and contorts itself to clamber its way up. The device is controlled remotely by an operator who can see images from a camera mounted on the tip. Each joint does not need to be manipulated individually; the operator merely has to input which way the robot should proceed after selecting the appropriate shape.
UKAEA Lead Mechanical Design Engineer Tristan Tremethick said, “Ultrasonic sensors enable the snake to find the correct position, where it then clamps to the pipe and performs the weld from the inside. After the weld, the tool retracts and is removed from the pipe where it can be redeployed. Robots are a key part of our mission to deliver low carbon fusion energy, and we need to become skilled in controlling machines like this one remotely. That’s because they will be used to maintain fusion energy power plants.”
(with inputs from agencies)
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