Construction machinery display system and control method for same

A control method of a display system in a construction machine, the construction machine comprising:

• a working equipment;
• and a body attached with the working equipment and comprising a cab, the display system comprising:
• a real image display unit configured to display work-support information as a real image, the work-support information comprising operation information for guidance of an operation of the working equipment;
• and a combiner configured to reflect the real image displayed on the real image display unit into the cab so that the work-support information is displayed as a virtual image superimposed on a view in front of the cab, the control method comprising:
• detecting position information of the working equipment relative to the body;
• and
• controlling, based on the position information of the working equipment, a displayed position of the work-support information along a surface of the combiner and a depthwise displayed position of the work-support information defined in a forward direction relative to the cab to display around the working equipment that is positioned within a field of vision of an operator in the cab a projection image of the work-support information visible to the operator.

A display system for a construction machine, the construction machine comprising:

• a working equipment;
• and a body attached with the working equipment and comprising a cab, the display system comprising:
• a position detector configured to detect three-dimensional position information of the body comprising a current position, an orientation and an inclination angle of the body;
• a storage device configured to store target landform information of a work ground;
• a working equipment position detector configured to detect position information of the working equipment relative to the body;
• a real image display unit configured to display work-support information as a real image;
• a combiner configured to reflect the real image displayed on the real image display unit into the cab so that the work-support information is displayed as a virtual image superimposed on a view in front of the cab;
• and
• a display controller configured to control the real image display unit, wherein
• the display controller controls the real image display unit to display construction ground information showing a landform in progress in accordance with geometry and position of the work ground, and
• the construction ground information is generated based on the three-dimensional position information of the body and the target landform information.

A display system for a construction machine, the construction machine comprising:

• a working equipment;
• and a body attached with the working equipment and comprising a cab, the display system comprising:
• a position detector configured to detect three-dimensional position information of the body comprising a current position, an orientation and an inclination angle of the body;
• a storage device configured to store target landform information of a work ground and locus information of the working equipment:
• a working equipment position detector configured to detect position information of the working equipment relative to the body;
• a real image display unit configured to display work-support information as a real image;
• a combiner configured to reflect the real image displayed on the real image display unit into the cab so that the work-support information is displayed as a virtual image superimposed on a view in front of the cab;
• and
• a display controller configured to control the real image display unit, wherein
• the display controller controls the real image display unit to display construction ground information indicating a landform in progress in accordance with geometry and position of the work ground, and
• the construction ground information is generated based on the three-dimensional position information of the body, the target landform information, and work progress information based on the locus information of the working equipment.