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3D-Measurement of the Pipe Geometry with Geo-Sensors
Version: 2.4
Date: 17.08.2023
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Introduction
A new generation of pipe inspection cameras allow the operator to record the exact position, situation and the course of a pipeline directly during a standard survey: der camera crawler thus drives through the pipe whereas a built-in geo-sensor is recording the current coordinate position of the camera head in predefined short distance steps. The corresponding X-, Y- and Z-values then are sent directly to the computer, processed by WinCanVX and drawn by the VX modules Map und WinCan 3D.
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It is crucial for a reliable calculation of the 3D pipeline network, that you have entered valid data into all the corresponding altitude/depth fields of the section and node category:
Pipe depth in the upstream manhole (from cover to pipe bottom) (SECTION.OBJ_FromNodeDepth)
Pipe bottom altitude (above sea level) in the upstream manhole (SECTION.OBJ_FromNodeInvert)
Pipe depth in the downstream manhole (from cover to pipe bottom) (SECTION.OBJ_ToNodeDepth)
Pipe bottom altitude (above sea level) in the downstream manhole (SECTION.OBJ_ToNodeInvert)
Manhole cover altitude above sea level (Z-Coordinate) (NODE.OBJ_Shape_WKT_Z)
Depth of the upstream/downstream manhole (from cover to bottom) (NODE.OBJ_DepthToInvert)
Bottom altitude above sea level of the upstream/downstream manhole (NODE.OBJ_NodeInvert)
The sketch below illustrates the meaning of these fields:
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Legend:
Green = values to be provided by engineers/water authorities
Brown = values to be measured by the operator or provided by engineers/water authorities
Blue = values to be measured by the operator
Red = values calculated by WinCanVX hitting the button Tools > Calculate Invert Levels
Running 3D measurement for main pipes
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