3DM
Truck Volume Measurement System

This system measures the volume of material carried on the back of trucks. Alternatively it could be used for train carriages, barges or any other container.
Truck with load of Ore
Figure 1. Truck with a load of ore
Image of Truck beneath Gantry
Figure 2.Gantry with cameras

The fully loaded truck drives underneath a gantry when leaving the pit, without slowing down. The system automatically activates as the truck approaches and senses the identification signal from the truck.

Image of Truck and DTM
Figure 3. Image of truck and DTM

Images of the load on the tray back are taken using CCD cameras. The images are analysed by the software and a surface model is instantly computed. The tray's position and orientation is determined and the surface model transformed into the tray's coordinate system. Finally the volume is computed between the surface model and the tray's shape.


Figure 4. Volume display

The truck identification number, date, time and volume are recorded and alternatively sent to the mine office by radio modem link.