Proximity detection system with approach zone
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United States of America Patent
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Sep 12, 2017
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app pub date -
Aug 31, 2015
filing date -
Sep 12, 2014
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Abstract
Collision avoidance systems and methods. In some embodiments the collision avoidance systems may include a magnetic field generator for generating a low frequency oscillating magnetic field, and a magnetic field detector, wherein the system is configured to determine a relative speed between the magnetic field generator and the detector using magnetic speed pings generated by the magnetic field generator. In other embodiments, the methods may include generating a low frequency oscillating magnetic field from a magnetic field generator, detecting the magnetic field from a magnetic field detector, and determining a relative speed between the magnetic field generator and the detector using magnetic speed pings generated by the magnetic field generator.
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