Method and device for determining the position and/or velocity of a moving object and use of the device

Abstract

The object of the present invention is a method and a device for determining the position and / or velocity of an object configured to move along a controlled trajectory, in conjunction with which object is fitted with at least measurements of the Measuring device (1) of a magnetic field on said object, said measuring device comprising means (4) for measuring the magnetic field from received measurement data, from said means forming descriptions acting on different positions of said object In the magnetic coverage area (30-32) of the magnetic field of the object, the magnetic coverage area is recorded for later use in combination with teaching operation or self-learning. The position of the object after the teaching operation is determined by measuring the magnetic field acting on the object moving along the controlled trajectory substantially in real time in the directions of the three coordinates X, Y, Z; comparing the measurement results with comparing with pre-recorded magnetic coverage; and also inferring the exact position of the object on its travel path based on the comparison result.

Description

technical field [0001] The object of the invention is a method as defined in the preamble of claim 1, a device as defined in the preamble of claim 11, and a use of said device as defined in claim 20, said Methods and apparatus are used to determine the position of a moving object. Background technique [0002] The arrangement according to the invention is particularly suitable for determining the exact position and / or velocity of objects moving along a controlled path of travel, such as elevator cars, cranes, goods transporters or vehicles moving along rails or rails and corresponding device or some other object. Hereinafter, the terms "path of travel" or "path of movement" of an object, or more succinctly "trajectory" mean the same. A controlled trajectory is one in which the object to be tracked is configured to travel such that it has a finite number of degrees of freedom. In this case, for example, an elevator car travels along its guide rails only in a substantially ...

AI Technical Summary

Problems solved by technology

This causes measurement problems and it is not easy to obtain sufficiently accurate results from the measurement

However, in these solutions, the moving object cannot detect its position when it is brought to a randomly selected position on the plane it is traveling on

Also, in solutions according to the prior art, the moving object itself cannot learn the changed orientation data

Yet another problem is that objects that deflect the magnetic field and are brought randomly into the vicinity of this type of moving object interfere with the magnetic field at that location so that the moving object can no longer detect its own precise location

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