SYSTEM AND METHOD FOR IMPROVED TRAFFIC FLOW REPORTING USING SATELLITE DIGITAL AUDIO RADIO SERVICE (SDARS) AND VEHICLE COMMUNICATIONS, NAVIGATION AND TRACKING SYSTEM
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United States of America Patent
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N/A
Issued Date -
Sep 18, 2014
app pub date -
May 12, 2014
filing date -
Apr 4, 2007
priority date (Note) -
Abandoned
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Abstract
Systems and methods are provided for improved traffic flow reporting (e.g., system bandwidth conservation and timely traffic flow updates) using in-vehicle devices, service hub, and communications system for transmitting aggregated traffic flow data to the vehicles. In-vehicle devices store data relating to monitored segments of roadways (e.g., segment identifiers or location codes and designated range(s) of speed), and send messages to the hub when current vehicle speed is not within a selected range designated for the current segment of roadway where the vehicle is located. The hub provides updated traffic flow data based on the messages to the communications system for transmission to the vehicles. Vehicles can be configured to send messages based on various criteria. One or more selected vehicles can be commanded to send a message to the hub. Vehicles can respond to location-specified content in broadcast data when they determined themselves to be in the specified location.
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