ground excavator of position detection systems and ground excavator equipped with the system, ground excavator yawing or pitching of the detection method, the detection method of rolling of the ground excavator

摘要

PROBLEM TO BE SOLVED: To provide a position detecting system of a natural ground excavator, which can measure a distance from an existing tunnel without reference to a positional relationship between the existing tunnel and the natural ground excavator and without mounting a transmitter in the existing tunnel, and the natural ground excavator equipped with the system.;SOLUTION: A position detecting system 2 includes: distance sensors 10-13 that are mounted on an outer shell 1a of a natural ground excavator 1 and that can measure a distance to an existing tunnel 3; transmitters 20-27 that are mounted on an inner peripheral surface of the existing tunnel 3 and that send signals capable of being transmitted through an outer shell 3a of the existing tunnel 3 and natural ground; and receivers 30-33 that are mounted on the outer shell 1a of the natural ground excavator 1 and that can receive the signals sent from the transmitters 20-27.;COPYRIGHT: (C)2012,JPO&INPIT