Work machine

Abstract

On the basis of an antenna installation location, a range of mobility of a work device, the attitude of an upper rotating body, and the azimuth of the upper rotating body, a controller sets a range within which the work device can become an obstruction when an antenna receives positioning signals from a plurality of positioning satellites as a satellite mask range. If the controller has determined, on the basis of satellite positioning status data acquired from a receiver, that setting the satellite mask range will instead reduce the precision of positioning computation by the receiver, setting of the satellite mask range is cancelled. If setting of the satellite mask range has been cancelled, the receiver computes the location of the upper rotating body on the basis of the positioning signals transmitted from the plurality of positioning satellites.

Description

technical field [0001] The present invention relates to a work machine having a controller that calculates the position of a vehicle body based on satellite signals received from a plurality of satellites, and calculates the position of a control point on the work machine based on the calculation result and the posture of the work machine. Background technique [0002] In recent years, the introduction of information-based construction in construction sites is progressing. Informatized construction refers to a series of construction projects consisting of survey, design, construction, inspection, management, etc. that focus on construction and realize construction through the use of electronic information and ICT (Information and Communication Technology). Efficient system. Working machines such as hydraulic excavators equipped with a guidance function and a machine control function that match the position of the vehicle body and the position and posture of the front workin...

AI Technical Summary

Problems solved by technology

[0004] In the hydraulic excavator described in Patent Document 1, the outer surface of the upper structure, such as the front working device, which may be located above the positioning antenna, is covered with a radio wave absorber, thereby preventing the positioning signal from being transmitted to the upper structure. Reflected and received by the positioning antenna, an attempt is made to suppress the decrease in position measurement accuracy

Images