Optoelectronic measuring device with magnetic compass and compensation functionality

Optoelectronic measuring device, comprising:

• an electronic magnetic compass for determining an azimuthal orientation of the measuring device;
• and
• a compensation device associated with the magnetic compass for compensating device-fixed interference fields,
• wherein:
• the measuring device is designed to occupy at least two defined, repeatable operating states, wherein the measuring device has a different device-fixed interference field in each of the operating states;
• the compensation device has a computing unit and a compensation functionality for carrying out an initial compensation of the electronic magnetic compass in a first and a second operating state of the measuring device;
• the measuring device is designed to occupy at least two defined, repeatable application states, wherein in each of the application states the magnetic compass is exposed to a different external magnetic interference field;
• the compensation device is additionally designed to compensate for the external interference fields;
• wherein the compensation device is designed, in the context of the compensation functionality,
• by means of the magnetic compass:
• to measure a first magnetic field set in a first overall state of the measuring device, in which the measuring device occupies the first operating state and a first application state;
• to measure a second magnetic field set in a second overall state of the measuring device, in which the measuring device occupies the second operating state and the first application state;
• and
• to measure a third magnetic field set in a third overall state of the measuring device, in which the measuring device occupies the first operating state and a second application state;
• and
• by means of the processing unit:
• to determine, based on the first, second and third magnetic field set, a first, second and third parameter set respectively;
• and
• to derive a fourth parameter set based on the first, second and third parameter set.