| 摘要 |
PURPOSE:To detect the position and posture of a traveling body to be by a remaining automatic measuring machine when a screening object exists at a passing path of laser beam in an arbitrary automatic measuring machine and then constantly direct the laser beam in the automatic measuring machine at the light-screened side toward the light-reception unit side based on these data. CONSTITUTION:In the title device, two sets of position/posture automatic measuring machines 6 which consist of a projection unit 11 of laser beam, a light- reception unit 12 which is installed in a shield excavation machine 1, and a reflection unit 13 of laser beam which is installed halfway through a traveling path of the shield excavation machine 1 are laid out. Then, when the laser beam path in one automatic measuring machine 6A is screened by a screening object 5, the position and posture data of the shield excavation machine which are obtained by the other position/posture automatic measuring machine 6B are input to one automatic measuring machine side. |
