Process for informing an information center about the path covered by a vehicle in a road network, terminal, information center
First Claim
1. A method for informing a central traffic bureau about a path traveled by a vehicle having a terminal unit in a traffic network comprising:
- repeatedly detecting location data representing a respective location of the terminal unit with a location device;
defining reference points at a plurality of locations by the terminal unit on the traveled path based on predetermined criteria stored in the terminal unit;
transmitting reference point information relating to the defined reference points from the terminal unit to the central bureau, wherein said defining of reference points is based on predetermined conditions, said reference points being defined when at least one additional condition relating to determined vehicle stability has been met, wherein said reference points may be defined when said at least one additional condition relating to vehicle stability is not met and another addition condition relating to a distance exceeding a distance stability lime has been met; and
setting an angle limit (angle-deviation) for defining a reference point, wherein said step of defining a reference point is performed when an angular difference between a current direction and a direction at the last defined reference point exceeds the set angle limit.
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Accused Products
Abstract
The invention describes an efficient transmission of data for making possible an accurate reconstruction of a path driven by a vehicle in a traffic network, a terminal unit, a central bureau and a process for informing (13) a central bureau (107) about a path, in particular for informing a central traffic bureau about a path traveled by a vehicle (101) with a terminal unit in a traffic network, wherein location data representing the respective location of the terminal unit (102) is repeatedly detected by a terminal unit (102) with a location detection device (20), wherein reference points (108 to 112) are defined at a plurality of locations by the terminal unit on the traveled path based on criteria present in the terminal unit, wherein reference point information relating to these reference points (108 to 112) is transmitted (13) from the terminal unit (102) to the central bureau (107).
11 Citations
21 Claims
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1. A method for informing a central traffic bureau about a path traveled by a vehicle having a terminal unit in a traffic network comprising:
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repeatedly detecting location data representing a respective location of the terminal unit with a location device;
defining reference points at a plurality of locations by the terminal unit on the traveled path based on predetermined criteria stored in the terminal unit;
transmitting reference point information relating to the defined reference points from the terminal unit to the central bureau, wherein said defining of reference points is based on predetermined conditions, said reference points being defined when at least one additional condition relating to determined vehicle stability has been met, wherein said reference points may be defined when said at least one additional condition relating to vehicle stability is not met and another addition condition relating to a distance exceeding a distance stability lime has been met; and
setting an angle limit (angle-deviation) for defining a reference point, wherein said step of defining a reference point is performed when an angular difference between a current direction and a direction at the last defined reference point exceeds the set angle limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A terminal unit for communicating to a central bureau about a path traveled by a vehicle in a traffic network comprising:
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a location detection device for repeatedly detecting location data representing the respective location of the terminal unit;
a device for defining reference points such that said reference points are defined at plurality of locations on the traveled path based on criteria stored in the terminal unit; and
a communications device for transmitting data concerning reference points to the central bureau and having a storage device for storing information relating to path data;
wherein a reference point is only defined when predetermined conditions are met and at least one additional condition relating to vehicle stability is met;
wherein a reference point may be defined when the at least one condition relating to vehicle stability is not met provided an additional condition is met that a distance exceeding a distance stability limit has been traveled since a last location with a table state. - View Dependent Claims (19, 20, 21)
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Specification