Automatic determination of the position of an object
First Claim
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1. A method for analyzing magnetic fields or signals used for determining a position of an object, the method comprising:
- generating, by two or more conductors, two or more temporal shifted magnetic fields or signals, the two or more conductors arranged separately from each other;
capturing, by at least one sensor, the magnetic fields or signals generated consecutively by the two or more conductors; and
determining the position of the object bearing the at least one sensor relative to the conductors from the fields or signals, wherein determining the position of the comprises;
measuring a signal (Wi) or the magnetic field strength in periodic intervals;
determining a difference of the field strength of consecutive signal measurements (Wi-Wi+1).
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Abstract
The invention relates to a method for analysis of magnetic fields or signals used for the determination of the position of an object, wherein two temporally to each other shifted magnetic signals or fields are generated by two conductors arranged at least in part or completely separated from each other. The magnetic fields generated by the conductors are consecutively being captured by at least one and preferably three sensors arranged orthogonally to each other and determining from the captured signals information for determining the position of the object carrying the sensors relative to the conductors.
59 Citations
14 Claims
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1. A method for analyzing magnetic fields or signals used for determining a position of an object, the method comprising:
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generating, by two or more conductors, two or more temporal shifted magnetic fields or signals, the two or more conductors arranged separately from each other; capturing, by at least one sensor, the magnetic fields or signals generated consecutively by the two or more conductors; and determining the position of the object bearing the at least one sensor relative to the conductors from the fields or signals, wherein determining the position of the comprises; measuring a signal (Wi) or the magnetic field strength in periodic intervals; determining a difference of the field strength of consecutive signal measurements (Wi-Wi+1). - View Dependent Claims (2, 3, 4, 5)
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6. A method for analyzing magnetic fields or signals used for determining a position of an object, the method comprising:
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generating, by two or more conductors, two or more temporal shifted magnetic fields or signals, the two or more conductors arranged separately from each other; capturing, by at least one sensor, the magnetic fields or signals generated consecutively by the two or more conductors; determining the position of the object bearing the at least one sensor relative to the conductors from the fields or signals, wherein determining the position of the object comprises; measuring a signal (Wi) or the magnetic field strength in periodic intervals; determining a difference of the field strength of consecutive signal measurements (Wi-Wi+1); performing N+1 measurements per direction in space, wherein N is an odd number; and calculating an amplitude A1 of the signal through the measurement values Wi using the formula - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method for analyzing magnetic fields or signals used for determining a position of an object, the method comprising:
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generating, by two or more conductors, two or more temporal shifted magnetic fields or signals, the two or more conductors arranged separately from each other; capturing, by at least one sensor, the magnetic fields or signals generated consecutively by the two or more conductors; determining the position of the object bearing the at least one sensor relative to the conductors from the fields or signals, wherein determining the position of the object comprises; measuring a signal (Wi) or the magnetic field strength in periodic intervals; determining a difference of the field strength of consecutive signal measurements (Wi−
Wi+1);performing N+1 measurements per direction in space, wherein N is an odd number; and calculating an amplitude A1 of the signal through the measurement values Wi using the formula - View Dependent Claims (14)
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Specification