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US 9,852,622 B2Granted
Methods and systems for real-time advanced congestion identification and warning
AssigneePurdue Research Foundation
InventorsDarcy M Bullock, Stephen M Remias, Haoxiang Howell Li
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a system and method for locating slow or stopped vehicles on a roadway and alerting drivers approaching the back of a queue, and in particular to intelligent transportation systems and traffic management.
Claims20
A method for using a geo-referenced field device to query cloud-based traffic data to notify drivers of impending congestion, comprising:
- placing a geo-referenced field device in a field, where the geo-referenced field device is communicatively coupled to a remotely located server configured to obtain speed data from a cloud source and perform calculations therefrom;
- contacting the remotely located server with a geographic location of the geo-referenced field device;
- transmitting, by the remotely located server, a message comprising cloud-based downstream traffic data associated with segments or points downstream of the geographic location of the geo-referenced field device to the geo-referenced field device, the message transmitted at a pre-defined interval, at a change of traffic condition downstream of the geographic location, or in response to polling received by the remotely located server via a message from the geo-referenced field device checking status of the cloud-based downstream traffic data, the remotely located server configured to monitor traffic conditions;
- and
- activating an audio and visual notification by the geo-referenced field device based upon the cloud-based downstream traffic data from the message from the remotely located server.
2 more elements
A system for using a geo-referenced field device to query cloud-based traffic data to notify drivers of impending congestion, the system comprising:
- the geo-referenced field device positioned by a roadway, including:
- a computer in the geo-referenced field device;
- a global positioning system (GPS) device configured to determine geographic location and orientation of the geo-referenced field device, the GPS device communicatively coupled to the computer;
- and
- a radio communication device;
- a cloud data source;
- and
- a remotely located server configured to deliver messages to the computer via the radio communication device, the messages comprising downstream speed data obtained from the cloud data source, the downstream speed data based upon the geographic location and orientation of the geo-referenced field device, where the computer is configured to activate a congestion notification for the drivers based upon the downstream speed data from the messages.
5 more elements
Dependencies are inferred from the claim text.