Cell messaging process for an in-vehicle traffic congestion information system
First Claim
1. In an in-vehicle traffic congestion information system, a method for cell messaging comprising the steps of:
- inputting raw traffic congestion data from at least one source of traffic congestion data,processing said raw traffic congestion data to produce a at least one traffic congestion data message indicative of a level of traffic congestion for a predetermined section of roadway and direction of travel,transmitting said at least one traffic congestion data message if the level of traffic congestion for said predetermined section of roadway and direction of travel exceeds a predetermined congestion level,receiving said at least one traffic congestion data message in a vehicle,determining the location and heading of the vehicle, andreporting said at least one traffic congestion data message if said section of roadway and direction of travel are within a predetermined area defined by the location and heading of the vehicle.
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Accused Products
Abstract
The In-Vehicle Traffic Congestion Information System (ICI system) consists of a technique to provide real-time traffic congestion data to drivers of suitably equipped vehicles. The ICI system includes apparatus for gathering and formatting data at a central location, transmitting the data to vehicles, processing data in the vehicles and presenting it to the drivers. The ICI system design provides inputs for a wide range of data sources at a central location where, through a data fusion process, information from a range of sources may be accumulated and aggregated into a single congestion level data value for each section of road. In the vehicles, a range of options may be available for presenting relevant congestion data to the driver including text, voice and map displays.
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Citations
15 Claims
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1. In an in-vehicle traffic congestion information system, a method for cell messaging comprising the steps of:
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inputting raw traffic congestion data from at least one source of traffic congestion data, processing said raw traffic congestion data to produce a at least one traffic congestion data message indicative of a level of traffic congestion for a predetermined section of roadway and direction of travel, transmitting said at least one traffic congestion data message if the level of traffic congestion for said predetermined section of roadway and direction of travel exceeds a predetermined congestion level, receiving said at least one traffic congestion data message in a vehicle, determining the location and heading of the vehicle, and reporting said at least one traffic congestion data message if said section of roadway and direction of travel are within a predetermined area defined by the location and heading of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In an in-vehicle traffic congestion information system, a method of processing traffic congestion data comprising the steps of:
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inputting raw traffic congestion data from at least one traffic congestion data source; processing said raw traffic congestion data from at least one traffic congestion data source to produce at least one traffic congestion value indicative of a level of traffic congestion for a predetermined section of roadway; assigning a score indicative of the reliability of said at least one traffic congestion data source to said at least one traffic congestion value; assigning a weighting factor to a score indicative of the reliability of said at least one traffic congestion data source, said weighting factor being a function of the traffic congestion value represented by each score; multiplying said score by said weighting factor to produce a weighted score; and selecting a traffic congestion value for a predetermined section of roadway from said at least one traffic congestion data source determined to have a highest weighted score.
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12. In an in-vehicle traffic congestion information system, a method of processing traffic congestion data comprising the steps of:
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inputting raw traffic congestion data from at least one traffic congestion data source; processing said raw traffic congestion data from at least one traffic congestion data source to produce at least one traffic congestion value indicative of a level of traffic congestion for a predetermined section of roadway; assigning a score indicative of the reliability of said at least one traffic congestion data source to said at least one traffic congestion value; assigning a weighting factor to a score indicative of the reliability of said at least one traffic congestion data source, said weighting factor being a function of the traffic congestion value represented by each score; multiplying said score by said weighting factor to produce a weighted score; assigning an aging factor to said at least one traffic congestion data source, said aging factor indicative of the reliability of said at least one traffic congestion data source over a period of time; decrementing over a period of time as a function of said aging factor the weighted score indicative of the reliability of said at least one traffic congestion data source to produce a decremented weighted score; and selecting the traffic congestion value for a predetermined section of roadway from said at least one traffic congestion data source determined to have a highest decremented weighted score. - View Dependent Claims (13, 14, 15)
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Specification