Automated sensor switching

A construction machine, comprising:

• a machine frame having a longitudinal frame axis extending between a front end and a rear end of the machine frame;
• a milling drum supported from the machine frame and having a milling drum rotational axis transverse to the longitudinal frame axis;
• a set of sensors;
• and
• a controller configured to control a milling depth of the milling drum as the construction machine moves across a ground surface, the controller being configured to:
• access a design surface data set defining a design surface to be created in a reference system external to the construction machine;
• access a priority ranking of a plurality of possible sensor sub-sets selected from the set of sensors;
• determine data representative of a cross-sectional profile of the design surface defined by an intersection of the design surface by an imaginary plane normal to the longitudinal frame axis and including the rotational axis of the milling drum at a selected position and orientation of the milling drum in the reference system external to the construction machine;
• determine a preferred sensor sub-set that is usable to create at least a portion of the cross-sectional profile of the design surface at the selected position and orientation of the milling drum in the reference system external to the construction machine and that has a highest priority ranking of all usable sensor sub-sets;
• and
• automatically maintain or switch control of the milling depth to use the preferred sensor sub-set.