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US 8,552,882 B2Granted
Proximity detection systems and method for internal traffic control
AssigneeStrata Proximity Systems, LLC
InventorsLarry D. Frederick, Dwight Medley
Life of this patent
Estimating the term…
Abstract
Embodiments described herein relate to proximity detection systems and a method for internal traffic control in a work zone. In various embodiments, magnetic field generators generate respective oscillating magnetic fields for detection by magnetic field detectors. The magnetic field detectors generate a signal for providing a visual and/or audible warning to operators in response to detecting the magnetic field.
Claims20
A proximity detection system comprising:
- a first magnetic field generator for generating a first oscillating magnetic field, the first magnetic field generator being arranged on a first vehicle, wherein at least one of the size and strength of the first oscillating magnetic field is adjustable;
- a second magnetic field generator for generating a second oscillating magnetic field, the second magnetic field generator being arranged on a second vehicle, wherein at least one of the size and strength of the second oscillating magnetic field is adjustable;
- a first magnetic field detector capable of detecting the second oscillating magnetic field and generating a signal for providing a visual and/or audible warning to an operator of the first vehicle upon detecting the second oscillating magnetic field;
- and
- a second magnetic field detector capable of detecting the first oscillating magnetic field and generating a signal for providing a visual and/or audible warning to an operator of the second vehicle upon detecting the first oscillating magnetic field.
2 more elements
A proximity detection system comprising:
- a first magnetic field generator arranged at a first location for generating a first oscillating magnetic field to define a first warning zone for the proximity of a second vehicle, wherein the first warning zone is adjustable by adjusting at least one of the size and strength of the first oscillating magnetic field;
- a second magnetic field generator arranged at a second location for generating a second oscillating magnetic field defining a second warning zone for the proximity of a first vehicle, wherein the second warning zone is adjustable by adjusting at least one of the size and strength of the first oscillating magnetic field;
- a first magnetic field detector capable of detecting the second oscillating magnetic field and generating a signal for providing a visual and/or audible warning to an operator of the second vehicle upon detecting the second oscillating magnetic field, the first magnetic field detector being arranged on the first vehicle;
- and
- a second magnetic field detector capable of detecting the first oscillating magnetic field and generating a signal for providing a visual and/or audible warning to an operator of the first vehicle upon detecting the first oscillating magnetic field, the second magnetic field detector being arranged on the second vehicle.
2 more elements
A method of internal traffic control in a work zone comprising:
- generating a first oscillating magnetic field with a first magnetic field generator arranged on a first vehicle, wherein at least one of the size and strength of the first oscillating magnetic field is adjustable;
- generating a second oscillating magnetic field with a second magnetic field generator arranged on a second vehicle, wherein at least one of the size and strength of the second oscillating magnetic field is adjustable;
- detecting the second oscillating magnetic field with a first magnetic field detector and generating a signal for providing a visual and/or audible warning to an operator of the first vehicle upon detecting the second oscillating magnetic field;
- and
- detecting the first oscillating magnetic field with a second magnetic field detector and generating a signal for providing a visual and/or audible warning to an operator of the second vehicle upon detecting the first oscillating magnetic field.
2 more elements
Dependencies are inferred from the claim text.