Determining progress of mining material spreader - receiving signals from at least four satellites at end of tipping arm and at vehicle base and calculating actual geodetic positions and height of material tip

摘要

The method is for monitoring the tipping process of a loader (4) with a movable structure (5) equipped with an unloading or tipping arm (10) for depositing loads of material on the tip (8). The signals radiated from at least four satellites (16, 17, 18, 19) circling the earth in orbits are received by at least two receivers, of which the first is mounted near the end (11) of the tipping arm and the second on the movable structure. These signals are passed to a calculating system, determining the orientation of the tipping arm and also the geodetic position of its end. At least one point (56, 57, 58, 59, 60) is scanned under the end of the arm and outwards using a laser scanner and the distance between the point and the end measured, giving, by comparison with a model stored in the memory of the equipment, the actual height of the waste on the tip. USE - For coal spreader.