Construction machine control method and construction machine control system

摘要

A construction machine control system comprises a laser surveying instrument for projecting N-shaped beams in rotary irradiation, a construction machine operated within a predetermined range of the N-shaped beams, and an elevation angle detecting unit. The construction machine comprises a working mechanical unit for carrying out construction operation, a machine control device for controlling the working mechanical unit, and at least three beam detectors disposed at known positions with respect to reference position of the construction machine. The beam detectors detect the three fan beams and output result of photodetection. The elevation angle detecting unit obtains elevation angles of each of the beam detectors with respect to the laser surveying instrument based on result of photodetection of three fan beams from the beam detectors. The machine control device is configured to control tilting of the working mechanical unit based on the elevation angle obtained.

主权项

1. A construction machine control method, comprising:
projecting N-shaped beams in rotary irradiation at constant speed by a laser surveying instrument, detecting said N-shaped beams by at least three beam detectors installed at known positions of a construction machine operated within a photodetection range of said N-shaped beams, obtaining elevation angle of each of said beam detectors with respect to said laser surveying instrument based on results of detection of said N-shaped beams by said at least three beam detectors and controlling tilting of said construction machine based on said at least three elevation angles obtained.