Location system with activation sequences of fields.

摘要

They ARE PRESENTED METHOD AND SYSTEM TO OPERATE LOCATION TO LOCATE IN A SPACE OBJECTS SYSTEM AS MEDICAL INSTRUMENTS (16) into the body of a patient. The method involves OPERATE Cyclically transmitters (10A, 10B, 10C) to be arranged in a fixed frame of reference for TRANSMISSION OF MAGNETIC FIELDS TO A plurality of detection units (54A, 54B, 54C). SCREENING UNIT FEATURES DETECTED DURING THE FIELDS driving sequences to determine the location. At least one transmitter can be operated FOR AT LEAST ONE OF THE CYCLES AS A SEQUENCE OF OPERATION multivalued FOR A FIELD WITH SOME INTENSITY OF DIFFERENT FIELD DURING A SEQUENCE OF VARIOUS INTERVALS SENSE, AND WITH A VALUE OF INTENSITY FIELD PROGRESSIVE CHANGE DURING THE TRANSITION BETWEEN INTERVAL INTERVAL DETECTION.