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First results in the autonomous retrieval of buried objects

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2 Author(s)
H. Herman ; Field Robotics Center, Carnegie Mellon Univ., Pittsburgh, PA, USA ; S. Singh

We have developed an autonomous system for the retrieval of buried objects. It is designed to detect, locate and retrieve buried objects. The system is equipped with a hydraulic robot, laser range finder and a subsurface sensor. First, subsurface sensing is used to detect and locate buried objects. If an object can be reached with one dig, the excavator retrieves it directly. Otherwise a layer of soil above the object is removed and another subsurface scan is made to get a more accurate estimate of the object location. This loop is repeated until the object is retrieved. The paper presents some recent results in sensing and excavation from experiments conducted on our testbed. There are numerous potential applications for this system-hazardous waste removal, maintenance of subsurface structure, construction, and removal of unexploded buried ordnance

Published in:

Robotics and Automation, 1994. Proceedings., 1994 IEEE International Conference on

Date of Conference:

8-13 May 1994