Patent ID: 8903604

Claim:
A display system of a hydraulic shovel having a main vehicle body and a work machine attached to the main vehicle body, the display system being configured to display a guidance picture showing a current position of the hydraulic shovel and a target surface selected from a plurality of design surfaces constituting a design land shape, the display system comprising: a position detector unit configured and arranged to detect the current position of the main vehicle body; a display controller operatively arranged to receive a signal from the position detector unit, the display controller including: a land shape data storage unit configured and arranged to store land shape data indicating a position of the target surface, a work machine data storage unit configured and arranged to store work machine data indicating a maximum reach length of the work machine, a calculation unit configured to set a predetermined display range for the land shape data to be displayed as the guidance picture, to calculate a position of a start point nearest the main vehicle body and a position of an end point set apart from the start point by the maximum reach length of the work machine among points constituting a cross section of the target surface as seen from a side of the main vehicle body based on the land shape data, the work machine data, and the current position of the main vehicle body, and to calculate a position of a reference point predetermined in the display range based on the relative positions of the start point and the end point with respect to the current position of the main vehicle body; and a display unit configured and arranged to display the guidance picture showing the cross section of the target surface included in the display range as seen from the side, and the current position of the hydraulic shovel, based on the reference point.