Collision avoidance using GPS device and train proximity detector
June 16, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3758775 Railroad grade crossing motorist warning system Wireless train proximity alert system Locomotive collision avoidance method and system Vehicle tracking system incorporating traffic signal preemption Railway train signalling system for remotely operating warning devices at crossings and for receiving warning device operational information Transportation safety apparatus and method Railway crossing collision avoidance system Train proximity detector Rail navigation system InventorAssigneeApplicationNo. 485956 filed on 06/16/2000US Classes:701/301, Collision avoidance340/901, EXTERNAL CONDITION VEHICLE-MOUNTED INDICATOR OR ALARM340/933, VEHICLE DETECTORS701/19Railway vehicleExaminersPrimary: Nguyen, Tan T.Assistant: Tran, Dalena Attorney, Agent or FirmInternational ClassesB61L 001/10B61L 023/00 G08G 001/01 AbstractA processor (12) located on a vehicle processes GPS coordinates input thereto to provide an area of protection around the vehicle. Railroad grade crossing data (82, 84) stored in a data base (30) is read therefrom to ascertain whether a grade crossing is within the area of protection. If so, heading data (86) stored in association with the grade crossing data (82, 84) is compared with the heading of the vehicle to determine if the vehicle is on a road that intersects the grade crossing. If so, a first level alert is provided to the vehicle operator. If, in addition, a train is in the vicinity of the crossing, a second level alert is provided to the operator of the vehicle.Field of SearchCollision avoidanceRailway vehicle VEHICLE DETECTORS Relative distence between vehicles (e.g., collision alert) EXTERNAL CONDITION VEHICLE-MOUNTED INDICATOR OR ALARM Transmitter in another vehicle (e.g., emergency vehicle) Indicator visible in pilot's line of sight through windscreen CONDITION RESPONSIVE INDICATING SYSTEM SELECTIVE TRAIN-POSITION INDICATION Highway crossing Highway crossing | |
