Process and system for ascertaining traffic conditions using stationary data collection devices
First Claim
1. A process for determining traffic conditions using stationary data collection devices installed at installation sites in a road network, each data collection device collects data on traffic conditions at the respective installation site in accordance with a preestablished measurement procedure and reporting procedure, and thereafter information derived from the collected data is forwarded to a traffic center in which the traffic condition is determined, said process comprising the steps of:
- analyzing the collected data using an electronic data processing device in the traffic center;
transmitting a portion of the results of the analyses of the traffic center to particular data collection devices by selecting at least one of individual data collection devices or a group of data collection devices as the particular data collection devices based on their respective installation sites, wherein said selecting step is performed by a filter in the particular data collection device; and
adjusting at least one of the measurement and reporting procedures of the particular data collection devices using an electronic data processing device in the particular data collection device based on the results of the analyses of the traffic center.
12 Assignments
0 Petitions
Accused Products
Abstract
A process and apparatus for determining traffic conditions using stationary data collection devices that are installed in a road network. The data collection devices collect data about traffic conditions at the respective installation sites in keeping with an established measurement and then forward the collected information to a traffic center in keeping with an established reporting procedure where the data is analyzed to determine the traffic condition. At least a portion of the results of the analyses of the traffic center is transmitted to particular data collection devices. The measurement and reporting procedures of the particular data collection devices are modified or influenced based on the results of the analyses of the traffic center and as a result the data transmissions between the traffic center and data collections devices are substantially reduced.
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Citations
10 Claims
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1. A process for determining traffic conditions using stationary data collection devices installed at installation sites in a road network, each data collection device collects data on traffic conditions at the respective installation site in accordance with a preestablished measurement procedure and reporting procedure, and thereafter information derived from the collected data is forwarded to a traffic center in which the traffic condition is determined, said process comprising the steps of:
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analyzing the collected data using an electronic data processing device in the traffic center; transmitting a portion of the results of the analyses of the traffic center to particular data collection devices by selecting at least one of individual data collection devices or a group of data collection devices as the particular data collection devices based on their respective installation sites, wherein said selecting step is performed by a filter in the particular data collection device; and adjusting at least one of the measurement and reporting procedures of the particular data collection devices using an electronic data processing device in the particular data collection device based on the results of the analyses of the traffic center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for determining traffic conditions comprising:
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a plurality of data collection devices installed along a roadway in a road network, each data collection device comprising; a sensor system for detecting traffic-relevant values; a first electronic data processing device connected to said sensor system; a first communications device connected to said first electronic data processing device; and an electric power supply device supplying power to said sensor system, said first electronic data processing device and said first communications device; means for analyzing the data collected by said sensor system, said analyzing means comprising; a second electronic data processing device for determining the traffic condition; a second communications device connected to said second electronic data processing device; and means for transmitting data bidirectionally between said analyzing means and said data collection devices; said first electronic data processing device being programmed for adjusting at least one of measurement and reporting procedures of said data collection device as a function of the analyses results of said analyzing means; wherein said first electronic data processing device further comprises a storage device for storing a plurality of standardized graph curves of traffic-relevant measurement variables each of the stored standardized graph curves having a corresponding unique code, and said first electronic data processing device is programmed to compare data currently collected by said sensor system with one of the stored plural standardized graph curves preestablished by said analyzing means by the unique code and wherein each data collection device further comprises a filter for filtering the results of the analyses of said analyzing means intended for the particular data collection device.
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Specification