Effect of force feedback on a bulldozer-type robot

Utilizing remote-controlled robots in damage restoration activities in disaster-affected areas such as those affected by a debris avalanche or an earthquake has significantly increased. Various types of remote-controlled robots have been successfully used along with construction machines in damage restoration activities in disaster-affected areas. Recently, a bulldozer-type robot removed the earth and sand deposited over a wide area because of a debris avalanche. To enable prompt damage restoration activities in disaster-affected areas, an efficient remote operation using robots is required. We study a remote-controlled bulldozer-type robot that moves objects using a system wherein the status of the stress applied on the bulldozer blade is provided as a force feedback to the operator. After conducting evaluation experiments, we could verify that the operating system providing force feedback to the operator shortened the operation time compared with the one that displayed visual information only on the operating screen.

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