Automated Traffic Signal Outage Notification with SPaT Information
AssigneeHERE Global B.V.
InventorsOmer Mubarek, Bruce Bernhardt, Jingwei XU
Life of this patent
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Abstract
A system and method are provided for determining malfunctioning traffic signals and lights. A traffic signal pattern is identified. Probe reports are received from a device. A path is generated including the road intersection for the device using location data in the two or more probe reports. The path is compared to a traffic signal. An abnormal crossing is determined from the comparison. A malfunction of the traffic signal is determined based on the abnormal crossing.
Claims20
A method for determining when a traffic signal associated with a road intersection is malfunctioning, the method comprising:
- identifying a traffic signal pattern for the traffic signal;
- receiving two or more probe reports from a device;
- generating a path including the road intersection for the device using location data in the two or more probe reports;
- comparing the path to the traffic signal pattern;
- determining an abnormal crossing from the comparison;
- and
- determining the traffic signal has malfunctioned.
A system for determining when a traffic signal associated with a road intersection is malfunctioning, the system comprising:
- a map database configured to store data relating to the road intersection and signal, phase, and time data for the traffic signal;
- a sensor ingestion module configured to receive two or more probe reports from a sensor associated with a vehicle;
- a routing module configured to generate a path for a crossing of the road intersection for the vehicle from the two or more reports;
- and
- an analytics module configured to analyze the path and the signal, phase, and time data to determine if the crossing of the road intersection is an abnormality, the analytics module further configured to determine a malfunction of the traffic signal based on the abnormality.
A method for generating an updated route, the method comprising:
- receiving a request for a route;
- generating the route;
- providing the route;
- identifying a road intersection on the route with a malfunctioning traffic signal from one or more vehicle paths through the road intersection and signal, phase, and timing information for the malfunctioning traffic signal;
- generating an updated route not including the road intersection;
- and
- providing the updated route.
Dependencies are inferred from the claim text.