Method and device for transmitting data on traffic assessment
First Claim
1. A process for wireless transmission of data for traffic system assessment in segments of a road network to a traffic center, comprising the steps of:
- collecting data using sensors in a floating vehicle in the road network;
forming a current driving profile from the data;
deriving actual values of characteristic driving profile properties from the current driving profile;
forming expected values of characteristic driving profile properties based on preestablished traffic situation information;
comparing the actual values to the expected values;
assessing a difference found in said step of comparing and determining whether the difference is a serious deviation from the expected values based on preestablished decision criteria; and
transmitting the actual values to the traffic center if it is determined that the difference is a serious deviation in said step of determining.
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Accused Products
Abstract
A process for the wireless transmission of data to a traffic sensor for assessing traffic in segments of a road network includes collecting data in a plurality of floating cars that travel in traffic and have sensor system for collecting the data. A current driving profile is formed in each floating car from the collected data. Actual values of characteristic driving profile properties are derived from the current driving profile and expected values of the characteristic driving profile properties are formed based on preestablished traffic situation information. A difference between the actual values and the expected values is determined and if the difference is determined to be a serious deviation from the expected values based on preestablished decision criteria, the data collected by the sensors is transmitted to a traffic center.
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Citations
18 Claims
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1. A process for wireless transmission of data for traffic system assessment in segments of a road network to a traffic center, comprising the steps of:
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collecting data using sensors in a floating vehicle in the road network;
forming a current driving profile from the data;
deriving actual values of characteristic driving profile properties from the current driving profile;
forming expected values of characteristic driving profile properties based on preestablished traffic situation information;
comparing the actual values to the expected values;
assessing a difference found in said step of comparing and determining whether the difference is a serious deviation from the expected values based on preestablished decision criteria; and
transmitting the actual values to the traffic center if it is determined that the difference is a serious deviation in said step of determining. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for wireless transmission of data for traffic system assessment in segments of a road network to a traffic center, including:
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a sensor system mounted in a floating vehicle for determining driving profile data;
a processing device for receiving the driving profile data from said sensor system and determining actual values and expected values of characteristic driving profile properties;
a comparator for comparing the actual values and expected values of the characteristic driving profile properties and determining a difference between said actual values and said expected values;
a first memory comprising decision criteria; and
a transmitting device for transmitting said driving profile data to the traffic center when said difference between said actual values and said expected values is determined to be a serious deviation from said expected values based on said decision criteria in said first memory. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification