Managing vehicle movement in aisles by use of magnetic vectors
First Claim
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1. A proximity detection system comprising:
- at least one magnetic field generator associated with a first location configured to generate at least one magnetic field,at least one magnetic field detector associated with a second location, the at least one magnetic field detector having at least two detection axes, wherein the at least two detection axes are oriented at angles from each other, wherein the magnetic field detector is configured to determine a strength of the magnetic field in each of at least two vector components corresponding to the at least two detection axes, to determine a relative strength of the at least two vector components, and to generate a signal based on the determined relative strength of the at least two vector components to indicate a proximity of the first and second locations with respect to one another,wherein the magnetic field generator and/or magnetic field detector includes a compass and the magnetic field detector is configured to generate the signal based on the determined relative strength of the at least two vector components and the compass direction.
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Abstract
Proximity detection systems and proximity detections methods are disclosed herein. In one aspect of the disclosure the systems and methods include measuring and analyzing the vector components of a generated magnetic field. In another aspect of the present disclosure, the results of the vector component measurements are used to take safety actions which may result in an alert to an operator or pedestrian, and/or automatic action by a vehicle or machine.
63 Citations
22 Claims
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1. A proximity detection system comprising:
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at least one magnetic field generator associated with a first location configured to generate at least one magnetic field, at least one magnetic field detector associated with a second location, the at least one magnetic field detector having at least two detection axes, wherein the at least two detection axes are oriented at angles from each other, wherein the magnetic field detector is configured to determine a strength of the magnetic field in each of at least two vector components corresponding to the at least two detection axes, to determine a relative strength of the at least two vector components, and to generate a signal based on the determined relative strength of the at least two vector components to indicate a proximity of the first and second locations with respect to one another, wherein the magnetic field generator and/or magnetic field detector includes a compass and the magnetic field detector is configured to generate the signal based on the determined relative strength of the at least two vector components and the compass direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of proximity detection, the method comprising:
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generating at least one magnetic field associated with a first location; determining a strength of the magnetic field at a second location in each of at least two vector components corresponding to at least two detection axes of a magnetic field detector, wherein the at least two detection axes are oriented at angles from each other; determining a relative strength of the at least two vector components; and generating a signal based on the determined relative strength of the at least two vector components to indicate a proximity of the first and second locations with respect to one another, and generating the signal based on the determined magnetic field vector component strengths and a compass direction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification