Patents

EViEWS Patents

Emergency Vehicle Traffic Signal Preemption System 5/2/2008 Patent #7327280
Emergency Vehicle Traffic Signal Preemption System 9/6/2005 Patent #6940422
Emergency Vehicle Traffic Signal Preemption System (View Description) 1/4/2011 Patent #7864071
Emergency Vehicle Control System Traffic Loop Preemption 9/26/2006 Patent #7113108
Traffic Preemption System 8/29/2006 Patent #7098806
Method and System For Beacon/Heading Emergency Vehicle Intersection Preemption 10/3/2006 Patent #7116245
Detection and Enforcement of Failure-to-Yield in an Emergency Vehicle Preemption System 7/24/2007 Patent #7248149
Roadside-Based Communication System and Method 9/4/2007 Patent #7265683
Cellular-Based Preemption System 11/1/2011 Patent #7868783

EViEWS SAFETY SYSTEMS, INC.
Patent # US 7864071 B2 (1/4/2011)

What is claimed is:

1) An emergency vehicle traffic control system comprising: a processor; and a memory operably coupled to the processor and having program instructions stored therein, the processor being operable to execute the program instructions, the program instructions including: receiving navigation information of an emergency vehicle approaching an intersection equipped with one or more vehicular traffic lights; estimating a time of arrival at the intersection based on the navigation information; transmitting one or more preempt commands for controlling the vehicular traffic lights based on the estimated time of arrival and current light states of the vehicular traffic lights for providing right of way to the emergency vehicle; verifying that the preempt commands have been executed; and transmitting a signal to the emergency vehicle based on the verification for activating a visual display in the emergency vehicle indicative of whether the emergency vehicle has right of way through the intersection.

2) The system of claim 1 further comprising: a warding alert control module at the intersection for activation of a warning message associated with the approaching emergency vehicle.

3) The system of claim 2, wherein the warning message is a visual alert.

4) The system of claim 2, wherein the warning message is an audio alert.

5) The system of claim 1, wherein the program instructions further include: assigning a preemption priority to the emergency vehicle.

6) The system of claim 1, wherein the program instructions further include: transmitting a preemption status to the emergency vehicle.

7) The system of claim 1, wherein the navigation information includes emergency vehicle position data.

8) The system of claim 7, wherein the position data is derived from an inertial navigation unit.

9) The system of claim 7, wherein the position data is derived from a global positioning system.

10) The system of claim 1, wherein the controlling includes controlling one or more pedestrian traffic lights based on a time for a pedestrian to cross the intersection.

11) The system of claim 10, wherein the controlling of the pedestrian traffic lights includes inhibiting a pedestrian clearance phase.

12) An emergency vehicle traffic control system comprising: a processor; and a memory operably coupled to the processor and having program instructions stored therein, the processor being operable to execute the program instructions, the program instructions including: receiving navigation information of an emergency vehicle approaching an intersection equipped with one or more vehicular traffic lights and one or more pedestrian traffic lights; estimating a time of arrival at the intersection based on the navigation information; controlling the vehicular traffic lights and the one or more pedestrian traffic lights based on the estimated time of arrival and current light states of the vehicular traffic lights and the pedestrian traffic lights for providing right of way to the emergency vehicle; and monitoring status of the vehicular traffic lights and the one or more pedestrian traffic lights for verifying preemption of the vehicular traffic lights and the one or more pedestrian traffic lights.

13) An emergency vehicle traffic control system comprising: a processor; and a memory operably coupled to the processor and having program instructions stored therein, the processor being operable to execute the program instructions, the program instructions including: receiving navigation information of an emergency vehicle approaching an intersection equipped with one or more vehicular traffic lights and one or more pedestrian traffic lights; estimating a time of arrival at the intersection based on the navigation information; and controlling the vehicular traffic lights and the one or more pedestrian traffic lights based on the estimated time of arrival and current light states of the vehicular traffic lights and the pedestrian traffic lights for providing right of way to the emergency vehicle, wherein the controlling of the pedestrian traffic lights includes inhibiting a pedestrian clearance phase, and wherein inhibiting the pedestrian clearance phase includes disabling a pedestrian call button.