Method and apparatus for controlling a movable object for localization within a positioning area
First Claim
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1. A device for controlling at least two coils located at different positions with regard to a positioning area, for indicating a position of an object located within the range of magnetic fields generated by the coils, the device comprising:
- a generator for generating coil enable signals for the at least two coils using a multiplexing technique;
wherein the generator for generating coil enable signals generates the coil enable signals for the at least two coils with different intensities.
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Abstract
At least two coils located at different positions with regard to a positioning area are controlled to indicate a position of an object located within the range of magnetic fields generated by the coils. An embodiment of the invention comprises a generator that uses a multiplexing technique to generate coil enable signals for the at least two coils. The coil enable signals are generated for the at least two coils with any of different polarities and different intensities.
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Citations
32 Claims
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1. A device for controlling at least two coils located at different positions with regard to a positioning area, for indicating a position of an object located within the range of magnetic fields generated by the coils, the device comprising:
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a generator for generating coil enable signals for the at least two coils using a multiplexing technique; wherein the generator for generating coil enable signals generates the coil enable signals for the at least two coils with different intensities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A movable object for a localization within a positioning area, within which at least two coils which are located at different positions with regard to the positioning area are controlled in accordance with a control sequence, the movable object comprising:
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a generator for generating coil enable signals for the at least two coils using a multiplexing technique; wherein the generator for generating coil enable signals generates the coil enable signals for the at least two coils with different intensities; a magnetic field sensor for detecting a magnetic field within which the movable object is located; a transmitter for transmitting at least one measurement value; and a control for controlling the magnetic field sensor or the transmitter, so that magnetic field measurement values may be sent in accordance with the control sequence. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A device for determining information about a position of a movable object within a positioning area within which at least two coils are located at different positions, and are controlled in accordance with a control sequence so as to sequentially generate one magnetic field, respectively, the device comprising:
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a generator for generating coil enable signals for the at least two coils using a multiplexing technique; wherein the generator for generating coil enable signals generates the coil enable signals for the at least two coils with different intensities a receiver for receiving a sequence of measurement values from the movable object, it being possible to associate measurement values of the sequence of measurement values with a coil of the at least two coils; and an evaluator for evaluating the sequence of measurement values while using information about the coils from which the individual measurement values originate, so as to acquire the information about the position of the movable object. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A positioning system comprising:
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a device for controlling at least two coils located at different positions with regard to a positioning area, for indicating a position of an object located within the range of magnetic fields generated by the coils, the device comprising; a generator for generating coil enable signals for the at least two coils using a multiplexing technique; wherein the generator for generating coil enable signals generates the coil enable signals for the at least two coils with different intensities a movable object, the position of which may be determined by said positioning system, said movable object having associated therewith; a magnetic field sensor for detecting a magnetic field within which the movable object is located; a radio transmitter for transmitting at least one measurement value; and a control for controlling the magnetic field sensor or the transmitter, so that magnetic field measurement values may be sent in accordance with the control sequence; a device for determining information about the position of the movable object, comprising; a receiver for receiving a sequence of measurement values from the movable object, each measurement value of the sequence of measurement values being associated with a coil of the at least two coils, and an evaluator for evaluating the sequence of measurement values while using information about the coils from which the individual measurement values originate, so as to acquire the information about the position of the movable object.
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25. A method of controlling at least two coils, located at different positions with regard to a positioning area, for an indication of the position of an object located within the range of magnetic fields generated by the coils, the method comprising:
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sequentially generating coil enable signals for the at least two coils using a multiplexing technique; wherein said coil enable signals are generated for the at least two coils with different intensities.
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26. A method of localizing a moveable object within a positioning area within which at least two coils are located at different positions with regard to the positioning area and are controlled in accordance with a control sequence, the method comprising:
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generating coil enable signals for the at least two coils using a multiplexing technique; wherein the coil enable signals are generated for the at least two coils with different intensities; detecting a magnetic field within which the movable object is located; transmitting at least one measurement value; and controlling a magnetic field sensor or a transmitter, so that magnetic field measurement values may be sent in accordance with the control sequence.
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27. A method of determining information about a position of a movable object within a positioning area within which at least two coils are located at different positions which are controlled in accordance with a control sequence, so as to sequentially generate one magnetic field, respectively, the method comprising:
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generating coil enable signals for the at least two coils using a multiplexing technique; wherein the coil enable signals are generated for the at least two coils with different intensities; receiving a sequence of measurement values from the movable object, each measurement value of the sequence of measurement values being associated with a coil of the at least two coils; and evaluating the sequence of measurement values while using information about the coils from which the individual measurement values originate so as to acquire the information about the position of the movable object.
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28. A positioning method comprising:
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controlling at least two coils, which are located at different positions with regard to a positioning area, for indicating a position of an object located within the range of magnetic fields generated by the coils by generating coil enable signals for the at least two coils by means of a multiplexing technique, wherein the coil enable signals are generated for the at least two coils with different intensities; detecting a magnetic field, within which the movable object is located, by means of a movable object; transmitting at least one measurement value by means of the movable object; and controlling a magnetic field sensor or a transmitter, so that magnetic field measurement values may be transmitted, in accordance with the control sequence, by means of the movable object; receiving a sequence of measurement values from the movable object, each measurement value of the sequence of measurement values being associated with a coil of the at least two coils; and evaluating the sequence of measurement values using information about the coils from which the individual measurement values originate so as to acquire the information about the position of the movable object.
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29. A computer program embodied within a computer readable medium and having a program code for performing the method of controlling at least two coils, located at different positions with regard to a positioning area, for an indication of the position of an object located within the range of magnetic fields generated by the coils, the method comprising:
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sequentially generating coil enable signals for the at least two coils using a multiplexing technique, wherein the coil enable signals are generated for the at least two coils with different intensities, when the computer program runs on a computer or a microcontroller.
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30. A computer program embodied within a computer readable medium and having a program code for performing the method of localizing a moveable object within a positioning area within which at least two coils are located at different positions with regard to the positioning area and are controlled in accordance with a control sequence, the method comprising:
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generating coil enable signals for the at least two coils using a multiplexing technique; wherein the coil enable signals are generated for the at least two coils with different intensities; detecting a magnetic field within which the movable object is located; transmitting at least one measurement value; and controlling a magnetic field sensor or a transmitter, so that magnetic field measurement values may be sent in accordance with the control sequence, when the computer program runs on a computer or a microcontroller.
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31. A computer program embodied within a computer readable medium and having a program code for performing the method of determining information about a position of a movable object within a positioning area within which at least two coils are located at different positions which are controlled in accordance with a control sequence, so as to sequentially generate one magnetic field, respectively, the method comprising:
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generating coil enable signals for the at least two coils using a multiplexing technique; wherein the coil enable signals are generated for the at least two coils with different intensities; receiving a sequence of measurement values from the movable object, each measurement value of the sequence of measurement values being associated with a coil of the at least two coils; and evaluating the sequence of measurement values while using information about the coils from which the individual measurement values originate so as to acquire the information about the position of the movable object, when the computer program runs on a computer or a microcontroller.
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32. A computer program embodied within a computer readable medium and having a program code for performing the positioning method, the positioning method comprising:
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controlling at least two coils, which are located at different positions with regard to a positioning area, for indicating a position of an object located within the range of magnetic fields generated by the coils by generating coil enable signals for the at least two coils by means of a multiplexing technique, wherein the coil enable signals are generated for the at least two coils with different intensities; detecting a magnetic field, within which the movable object is located, by means of a movable object; transmitting at least one measurement value by means of the movable object; and controlling a magnetic field sensor or a transmitter, so that magnetic field measurement values may be transmitted, in accordance with the control sequence, by means of the movable object; receiving a sequence of measurement values from the movable object, each measurement value of the sequence of measurement values being associated with a coil of the at least two coils; and evaluating the sequence of measurement values using information about the coils from which the individual measurement values originate so as to acquire the information about the position of the movable object, when the computer program runs on a computer or a microcontroller.
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Specification