Construction machine control system

• US 6,286,607 B1
• Filed: 10/28/1999
• Issued: 09/11/2001
• Est. Priority Date: 11/13/1998
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Topcon
• Original Assignee: Kabushiki Kaisha Topcon
• Inventors: Ohtomo, Fumio, Hayashi, Kunihiro
• Primary Examiner(s): BATSON, VICTOR D
• Application Number:
  US09/429,139
• Time in Patent Office: 684 Days
• Field of Search: 172/4.5, 172/2, 172/3, 172/4, 172/810, 172/819, 373/48, 373/82, 701/50, 356/147, 356/152
• US Class Current: 172/4.5
• CPC Class Codes: E02F 3/847 using electromagnetic, optical or acoustic beams to determine the blade position, e.g. laser beams
• CPC Class Codes: G01C 15/004 Reference lines, planes or sectors
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G01S 19/43 using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry

Abstract

The present invention provides a construction machine control system, which comprises a rotary laser irradiating system for irradiating a plurality of laser beams by separating in a vertical direction and for forming a plurality of laser beam reference planes by the plurality of laser beams, a construction machine having a ground leveling tool, a level sensor arranged on the ground leveling tool and for receiving and detecting the laser beams, a driving unit for driving the ground leveling tool to adjust height thereof, a control device for controlling the driving unit, and a GPS receiving system for detecting a position of the construction machine, wherein the control device detects the position of the construction machine by the GPS receiving system, the level sensor selects at least one of the plurality of laser beams and controls the driving unit based on a laser beam photodetecting position of the level sensor.

Claims

1. A construction machine control system, comprising a rotary laser irradiating system for irradiating a plurality of laser beams which can be identified and for irradiating by separating said plurality of laser beams in predetermined vertical angles and for forming a plurality of laser beam reference planes by rotating said plurality of laser beams, a construction machine having a ground leveling tool, a level sensor arranged on said ground leveling tool for receiving, detecting and identifying said plurality of laser beams, a driving unit for driving said ground leveling tool to adjust a height thereof, a control device for controlling said driving unit, and a GPS receiving system for detecting a position of said construction machine, wherein said control device controls said driving unit based on the position of said construction machine detected by said GPS receiving system, at least one photodetecting position of said plurality of laser beams which are received, detected and identified by said level sensor and position data of said rotary laser irradiating system.

2. A construction machine control system according to claim 1, wherein there is further provided topographical data incorporated in said control device and used for construction work, said control device associates the position of the construction machine and the position of said rotary irradiating system detected by said GPS receiving system with said topographical data, said control unit controls said driving unit based on the topographical data at the position of the construction machine, the photodetecting position of the laser beams which are received, detected and identified by said level sensor and position data of said rotary laser irradiating system.

3. A construction machine control system according to claim 1, further comprising a mobile side GPS receiving system for detecting a position of said construction machine, a fixed side GPS receiving system for detecting a position of said rotary laser irradiating system, transmitting means for transmitting position data of said rotary irradiating system detected by said fixed side GPS receiving system, and receiving means provided on said construction machine for receiving transmission from said transmitting means.

4. A construction machine control system according to claim 1, wherein each of said plurality of laser beams is modulated in a different manner so that said plurality of laser beams can be identified.

5. A construction machine control system according to claim 1, wherein each of said plurality of laser beams diffuses along a rotating direction so as to be detected by said level sensor.

6. A construction machine control system according to claim 1, wherein each of said plurality of laser beams is divided into a plurality of parts along a rotating direction so that said level sensor can identify said laser beams, and an aspect of division is varied according to each of the laser beams.

7. A construction machine control system according to claim 2, wherein said level sensor selects and continuously receives said plurality of laser beams, and said control unit controls said driving unit based on the result of receiving so that an inclined surface and a curved surface can be obtained corresponding to the working data.

8. A construction machine control system according to claim 1, wherein said plurality of laser beams are emitted by a plurality of light emitting elements driven independently, and said light emitting elements can independently modulate or flash.

9. A construction machine control system according to claim 6, wherein each of said plurality of laser beams are divided by diffraction patterns.

10. A construction machine control system, comprising a rotary laser irradiating system for irradiating a plurality of laser beams by separating said plurality of laser beams in a vertical direction and for forming a plurality of laser beam reference planes by said plurality of laser beams, a construction machine having a ground leveling tool, a level sensor arranged on said ground leveling tool for receiving and detecting said plurality of laser beams, a driving unit for driving said ground leveling tool to adjust a height thereof, a control device for controlling said driving unit, a mobile side GPS receiving system for detecting a position of said construction machine, a fixed side GPS receiving system for detecting a position of said rotary laser irradiating system, transmitting means provided on said fixed side GPS receiving system for transmitting a result of receiving on said fixed side GPS receiving system to said construction machine, and receiving means provided on said construction machine for receiving transmission from said transmitting means, wherein said control device detects the position of said construction machine by said GPS receiving system, said level sensor selects at least one of said plurality of laser beams and said control device controls said driving unit based on a laser beam photodetecting position of said level sensor, the position detected by said fixed side GPS receiving system, and the position detected by said mobile side GPS receiving system.