TRAFFIC LIGHT PREEMPTION MANAGEMENT SYSTEM
1 Assignment
0 Petitions
Accused Products
Abstract
A method and system for managing a set of traffic lights at an intersection, measuring the Doppler Effect of a signal emitted by a vehicle, where such Doppler Effect being a function of the vehicle movement with respect to said intersection, and deciding as a function of such measure a new state for each traffic light at the intersection so as to facilitate passage of the approaching vehicle.
31 Citations
20 Claims
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1-7. -7. (canceled)
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8. An apparatus for managing traffic lights, comprising:
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a sampling device configured to sample a first signal having a predefined characteristic and emitted by a vehicle; a processing system configured to perform; receiving a route to be taken by the vehicle; identifying an intersection on the route; identifying a first traffic light controlling, at the intersection, traffic going in a direction to be followed by the vehicle upon arriving at the intersection, according to the route; identifying a second traffic light controlling, at the intersection, traffic going in another direction; receiving a first signal sample of the first signal received by the sampling device; determining, from an analysis of the first signal sample, whether the vehicle is approaching; upon the vehicle approaching, instructing the second traffic light to change its state to block traffic and instructing the first traffic light to change its state to authorize traffic to facilitate passage of the vehicle at the intersection. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A computer program product comprising a computer usable storage medium having stored therein computer usable program code for managing traffic lights, the computer usable program code, which when executed by a computer processing system, causes the computer processing system to perform:
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receiving a route to be taken by a vehicle equipped to emit a first signal having a predefined characteristic; identifying an intersection on the route, the intersection including a sampling device configured to sample the first signal emitted by the vehicle; identifying a first traffic light controlling, at the intersection, traffic going in a direction to be followed by the vehicle upon arriving at the intersection, according to the route; identifying a second traffic light controlling, at the intersection, traffic going in another direction; receiving a first signal sample of the first signal received by the sampling device; determining, from an analysis of the first signal sample, whether the vehicle is approaching; upon the vehicle approaching, instructing the second traffic light to change its state to block traffic and instructing the first traffic light to change its state to authorize traffic to facilitate passage of the vehicle at the intersection. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification