Method for transmitting local data and measurement data from a terminal, including a telematic terminal, to a central traffic control unit
First Claim
1. A method for efficiently transmitting location data impliciting a location of a terminal unit in a traffic network at a point in time and general measurement data impliciting other characteristics of the traffic network at at least one of a location and a time to a central traffic station, which location data and general measurement data are detected by a terminal unit for a vehicle, comprising the steps of:
- transmitting at least some data records from the terminal unit to the central traffic station which contain only location data;
independently transmitting some data records from the terminal unit to the central traffic station which contain only general measurement data other than location data; and
compressing the location data and the general measurement data separately from one another according to different compression methods prior to transmitting.
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Accused Products
Abstract
A reduction in telecommunications costs in the transmission of extensive data from a telematic terminal unit in a vehicle to a central station is made possible by a method for the transmission of location data implicating the location of the terminal unit in a traffic network at a point in time and of measurement data impliciting other characteristics of the traffic network at a location and/or at a time to the central traffic station, which location data and measurement data are detected by the terminal unit, particularly a telematic terminal unit for a vehicle. At least some of the data records transmitted from the terminal unit to the central traffic station contain only location data and some of the data records transmitted from the terminal unit to the central traffic station contain measurement data.
85 Citations
20 Claims
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1. A method for efficiently transmitting location data impliciting a location of a terminal unit in a traffic network at a point in time and general measurement data impliciting other characteristics of the traffic network at at least one of a location and a time to a central traffic station, which location data and general measurement data are detected by a terminal unit for a vehicle, comprising the steps of:
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transmitting at least some data records from the terminal unit to the central traffic station which contain only location data;
independently transmitting some data records from the terminal unit to the central traffic station which contain only general measurement data other than location data; and
compressing the location data and the general measurement data separately from one another according to different compression methods prior to transmitting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A terminal unit, comprising:
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a program for efficiently transmitting compressed location data impliciting a location of a terminal unit in a traffic network at a point in time and compressed general measurement data impliciting other characteristics of the traffic network at at least one of a location and a time to a central traffic station, the general measurement data being compressed differently from the location data, which location data and general measurement data are detected by a terminal unit for a vehicle, at least some data records transmitted from the terminal unit to the central traffic station contain only location data, and some data records transmitted from the terminal unit to the central traffic station contain only general measurement data other than location data;
a processor for running the program;
a storage for the program; and
a communications module for conveying information to the central traffic station. - View Dependent Claims (15, 16, 17)
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18. A central traffic station, comprising:
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a program for efficiently transmitting compressed location data impliciting a location of a terminal unit in a traffic network at a point in time and compressed general measurement data impliciting other characteristics of the traffic network at at least one of a location and a time to a central traffic station, the general measurement data being compressed differently from the location data, which location data and general measurement data are detected by a terminal unit for a vehicle, at least some data records transmitted from the terminal unit to the central traffic station contain only location data, and some data records transmitted from the terminal unit to the central traffic station contain general only measurement data other than location data;
a storage for the program;
a process for running the program; and
a communications module for reception of information from the terminal unit in the vehicle. - View Dependent Claims (19, 20)
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Specification