| 摘要 |
PURPOSE:To properly perform excavating operations for trench and slope while watching a screen by a method in which the moving locus of the working machine of an excavator, the moving locus of the cutting edge of the working machine, and a target line of excavation are displayed on an image displayer. CONSTITUTION:A sensor 5 for the turning angle of boom, a sensor 6 for the turning angle of arm, and a sensor 7 for the turning angle of bucket are provided at turning fulcrums A, B, and C, and boom turning angle alpha, arm turning angle beta, and bucket turning angle gamma are detected. Boom length lambda1 and arm lengths l2, l3 and l4 are stored in an arithmetic memory 9, and shape patterns analogous to a boom 1, an arm 2, a bucket 3, and a vehicular body 4 are stored in an image memory 10. Angles alpha, beta, and gamma detected by the sensors 5-8 are taken in CPU 12 through A/D converters 13-16. Furthermore, stored lengths l1-l4 and excavating depth l5 of a setter 11 are taken in and on the basis of these outputs, the moving locus and target excavating line are displayed in images.
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