Automated traffic signal outage notification without signal timing and phase information
AssigneeHERE Global B.V.
InventorsOmer Mubarek, Bruce Bernhardt, Jingwei XU
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided for determining when a traffic signal associated with one or more paths through a road intersection is malfunctioning. Congestion prior to and subsequent to the road intersection is identified from a plurality of probe reports. A malfunctioning traffic signal is determined based on whether or not congestion is identified prior to and subsequent to the road intersection.
Claims18
A method for determining when a traffic signal associated with one or more paths through a road intersection is malfunctioning, the method comprising:
- receiving a plurality of probe reports from a plurality of devices;
- identifying whether there is congestion prior to and subsequent to the road intersection for the one or more paths;
- and
- determining a traffic signal malfunction based on whether or not congestion is identified prior to and subsequent to the road intersection.
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;
- a sensor ingestion module configured to receive and store in the map database a plurality of probe reports from a plurality of probe devices;
- a routing module configured to generate a plurality of crossing routes for the road intersection for a time period;
- and
- an analytics module configured to analyze the plurality of probe reports to determine congestion before and after the road intersection;
- the analytics module configured to determine a number of crossing cycles for the road intersection using the plurality of crossing routes;
- the analytics module further configured to determine the traffic signal has malfunctioned when there is congestion before the road intersection for all paths and no congestion after the road intersection for all paths;
- the analytics module further configured to determine the traffic signal has malfunctioned when there is congestion in all but one path before the road intersection, no congestion after the road intersection for all paths, and when the number of crossing cycles equals a predefined threshold.
16-20. (canceled)
Dependencies are inferred from the claim text.