Device for creating construction gauge measurement diagram, device for creating construction gauge measurement diagram data, and method for creating construction gauge measurement diagram

A device for creating construction gauge measurement diagram data, the device comprising:

• a memory configured to store a route of at least one track, a shape of a construction gauge defined by a plane perpendicular to the at least one track, and three-dimensional coordinates of a plurality of measurement points obtained by a mobile mapping system, which includes at least a laser scanner, that acquires a three-dimensional shape of a surrounding target space as point cloud data;
• and
• processing circuitry configured to
• measure a distance from each of said measurement points to said construction gauge in said route of said track;
• identify each of attributes of said measurement points, by:
• identifying whether or not each of said measurement points falls within a predetermined range from said construction gauge based on the distance measured, and
• identifying whether or not each of identified measurement points at least identified by said processing circuitry as falling within the predetermined range from said construction gauge is a measurement point of a feature on a ground among said measurement points, said feature on a ground facing on a base of said construction gauge;
• and
• create plan view data including coordinate values for drawing in a plan view a measurement point identified as a measurement point of a feature on the ground by said processing circuitry among said measurement points by projecting the three-dimensional coordinate of the measurement point identified as a measurement point of a feature on the ground onto the plan view, and side view data including coordinate values for drawing in at least one side view at least part of measurement points identified as not the measurement point of a feature on the ground by projecting the three-dimensional coordinate of the measurement point identified as not a measurement point of a feature on the ground onto the at least one side view.

A method implemented by a device for creating a construction gauge measurement diagram based on a route of at least one track, a shape of a construction gauge defined by a plane perpendicular to the at least one track, and coordinates of a plurality of measurement points obtained by a mobile mapping system, which includes at least a laser scanner, that acquires a three-dimensional shape of a surrounding target space as point cloud data, the method comprising:

• by processing circuitry of the device, a step of measuring a distance from each of said measurement points to said construction gauge in said route of said track;
• a step of identifying each of attributes of said measurement points, said step of identifying the attributes including:
• a step of identifying whether or not each of said measurement points falls within a predetermined range from said construction gauge based on said measured distance, and
• a step of identifying whether or not each of measurement points at least identified by said range identification unit as falling within the predetermined range from said construction gauge is a measurement point of a feature on a ground among said measurement points, said feature on a ground facing on a base of said construction gauge;
• and
• the method further comprising a step of drawing, in a plan view, a measurement point identified by said ground feature identification unit as a measurement point of a feature on the ground among said measurement points by projecting the three-dimensional coordinate of the measurement point identified as a measurement point of a feature on the ground onto the plan view, and drawing, in at least one side view, at least part of measurement points identified by said ground feature identification unit as not a measurement point of a feature on the ground by projecting the three-dimensional coordinate of the measurement point identified as not a measurement point of a feature on the ground onto the at least one side view,
• wherein said processing circuitry performs different drawing processes on a measurement point identified by said processing circuitry as falling within the predetermined range from said construction gauge among said measurement points, and on a measurement point identified by said processing circuitry as not falling within the predetermined range from said construction gauge among said measurement points.