* Masaharu Moteki and Kenichi Fujino, Akihiko Nishiyama

Public Works Research Institute

1-6 Minamihara, Tsukuba

Ibaraki, Japan 158-8530

(*Corresponding author:

At present, the Unmanned Construction System (UCS) is adapted on initial operation against the disaster. For instance, it has been used in Unzen. When the scale of the disaster is big, or the danger to a person is big, the UCS is expected as a quick and safe construction technology. The Remote Controlled UCS is introduced into construction site to repair earth-fill embankment or to remove rock, as urgent measures after the disaster outbreak. For improvement of the operability, shortening of the skill time, reduction of the fatigue, examination of the most suitable system (placement of a monitor and the joy stick) of the remote system is a main theme in the Public Works Research Institute (PWRI). In the report of this year, when the operator controls construction machine directly or he controls it using remote system (he can check the situation of site only via monitor), the degree of achievement, construction efficiency and construction precision were inspected. The remote system which is based on the system used at Unzen was developed at PWRI.
Keywords: Operation; Operators; Construction; remote control; Cycles; experiment; Experiments; Systems; Research; Improvements;
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