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2025
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Invention
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Warning light sensor system for automatically determining a proper operation of a railroad crossi... |
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Invention
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Redundant, self-deterministic, failsafe sensor systems and methods for railroad crossing and adja... |
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2024
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Invention
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Video analytic sensor system and methods for detecting railroad crossing gate position and railro... |
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2022
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Invention
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Predictive railroad crossing safety notification and traffic control system and methods.
A predi... |
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2020
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Invention
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Railroad crossing and adjacent signalized intersection vehicular traffic control preemption syste... |
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Invention
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Railroad car location, speed, and heading detection system and methods with self-powered wireless... |
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2018
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Invention
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Redundant, self-deterministic, failsafe sensor systems and methods for object detection, speed an... |
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2014
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Invention
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Methods and systems for detection and notification of blocked rail crossings. A blocked rail cros... |
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2013
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Invention
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Crossing proximity and train-on-approach notification system. A system includes a base station as... |
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2011
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Invention
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Systems and methods for redundant vehicle detection at highway-rail grade crossings. A method for... |
