Assured vehicle absolute localisation
First Claim
1. A system for localizing a vehicle in a marked environment, i.e. provided with a set of markers, e.g. on a road side, the markers emitting a position signal indicative of a respective marker'"'"'s known geographical position;
- the system comprising;
a localization unit provided in the vehicle, the localization unit comprising a processing unit, a communication unit and a distance detection unit, the processing unit adapted to receive, via said communication unit, said position signal of a respective marker;
the processing unit adapted to receive said known geographical position from the position signal of said respective marker; and
to estimate a first distance measure of the vehicle relative to the respective marker based on a position signal measurement;
the processing unit feeding said estimated first distance measure to the distance detection unit;
the distance detection unit adapted to detect a second distance measure of said respective marker within the first distance measure;
the distance detection unit adapted to provide the processing unit with the second distance measure of the vehicle relative to the detected respective marker; and
the processing unit calculating an instantaneous geographical position of said vehicle from the second distance measure and the marker'"'"'s known geographical position.
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Accused Products
Abstract
It is proposed to provide a system for localizing a vehicle in a marked environment, provided with a set of markers, e.g. on a road side, the markers emitting a position signal indicative of a respective marker'"'"'s known geographical position. The system comprises a distance detection unit and a processing unit provided in the vehicle, the processing unit adapted to receive said position signal of a respective marker. The processing unit is adapted to receive said known geographical position from the position signal of said respective marker; and to estimate a first distance measure of the vehicle relative to the respective marker based on a position signal measurement. The processing unit feeds said estimated first distance measure to the distance detection unit; the distance detection unit being adapted to detect said marker within the first distance measure by a second distance measure. The distance detection unit is further adapted to provide the processing unit with the second distance measure of the vehicle relative to the detected marker and with a detection angle of the detected marker; and the localization unit calculating an instantaneous geographical position of said vehicle from the second distance measure; the detection angle and the marker'"'"'s known geographical position.
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Citations
14 Claims
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1. A system for localizing a vehicle in a marked environment, i.e. provided with a set of markers, e.g. on a road side, the markers emitting a position signal indicative of a respective marker'"'"'s known geographical position;
- the system comprising;
a localization unit provided in the vehicle, the localization unit comprising a processing unit, a communication unit and a distance detection unit, the processing unit adapted to receive, via said communication unit, said position signal of a respective marker; the processing unit adapted to receive said known geographical position from the position signal of said respective marker; and
to estimate a first distance measure of the vehicle relative to the respective marker based on a position signal measurement;the processing unit feeding said estimated first distance measure to the distance detection unit;
the distance detection unit adapted to detect a second distance measure of said respective marker within the first distance measure;the distance detection unit adapted to provide the processing unit with the second distance measure of the vehicle relative to the detected respective marker; and the processing unit calculating an instantaneous geographical position of said vehicle from the second distance measure and the marker'"'"'s known geographical position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14)
- the system comprising;
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11. A method for localizing a vehicle in a marked environment, i.e. provided with a set of markers, e.g. on a road side, the markers emitting a position signal indicative of a respective marker'"'"'s known geographical position;
- and the vehicle comprising a localization unit provided in the vehicle, the localization unit comprising a processing unit, a communication unit and a distance detection unit, the method comprising;
receiving, by the processing unit, said known geographical position from the position signal of said respective marker; and
estimating a first distance measure of the vehicle relative to the respective marker based on a position signal measurement;feeding said estimated first distance measure to the distance detection unit;
the distance detection unit adapted to detect a second distance measure of said respective marker within the first distance measure;providing the processing unit with the second distance measure of the vehicle relative to the detected respective marker; and calculating an instantaneous geographical position of said vehicle from the second distance measure and the marker'"'"'s known geographical position. - View Dependent Claims (12, 13)
- and the vehicle comprising a localization unit provided in the vehicle, the localization unit comprising a processing unit, a communication unit and a distance detection unit, the method comprising;
Specification