Navigation system, navigation device, navigation server, vehicle provided with a navigation device, group of such vehicles and navigation method
First Claim
1. Navigation system comprisinga navigation device with a navigation sensor unit and a magnetic field sensor unit, the navigation device being arranged to be moved,the navigation sensor unit being arranged for providing a navigation signal with navigation information ( α
- ,θ
)the magnetic field sensor unit being arranged for providing a magnetic field signal (H) indicative for a magnetic field strength,a first integration unit for integrating the navigation signal ( α
,θ
) and for providing a first integration result (p),a second integration unit for calculating a path-integral of the magnetic field signal using the navigation signal, and for providing a second integration result (m),a first auxiliary integration unit for providing a first coefficient (α
),a second auxiliary integration unit for providing a second coefficient (φ
),a proximity detector for providing a proximity signal (Snc) indicative whether a distance between the navigation device and a reference position is less than a predetermined value,a data storage unit for storing the first integration result, the second integration result, the first coefficient and the second coefficient for states wherein the proximity signal is positive,a matrix solving unit for solving a set of equations based on the first integration result, the second integration result, the first coefficient and the second coefficient retrieved from the data storage unit,a controller for controlling the first integration unit, the second integration unit, the first auxiliary integration unit, the second auxiliary integration unit data storage unit, the data storage unit and the matrix solving unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation system is disclosed comprising a navigation device (2a) with a navigation sensor unit (3) and a magnetic field sensor unit (4), the navigation device is arranged to be moved. The navigation sensor unit (3) is arranged for providing a navigation signal with navigation information (ā, θ). The magnetic field sensor unit is arranged for providing a magnetic field signal (H) indicative for a magnetic field strength. The navigation system further comprises a first integration unit (6a) for integrating the navigation signal (ā, θ) and for providing a first integration result (p), a second integration unit (6b) for calculating a path-integral of the magnetic field signal using the navigation signal, and for providing a second integration result (m), a first auxiliary integration unit (6c) for providing a first coefficient (α), a second auxiliary integration unit (6d) for providing a second coefficient (φ), and a proximity detector (5) for providing a proximity signal (Snc) indicative whether a distance between the navigation device (2a) and a reference position is less than a predetermined value. A matrix solving unit (8) for solves a set of equations based on the first integration result, the second integration result, the first coefficient and the second coefficient.
5 Citations
21 Claims
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1. Navigation system comprising
a navigation device with a navigation sensor unit and a magnetic field sensor unit, the navigation device being arranged to be moved, the navigation sensor unit being arranged for providing a navigation signal with navigation information ( α - ,θ
)the magnetic field sensor unit being arranged for providing a magnetic field signal (H) indicative for a magnetic field strength, a first integration unit for integrating the navigation signal ( α ,θ
) and for providing a first integration result (p),a second integration unit for calculating a path-integral of the magnetic field signal using the navigation signal, and for providing a second integration result (m), a first auxiliary integration unit for providing a first coefficient (α
),a second auxiliary integration unit for providing a second coefficient (φ
),a proximity detector for providing a proximity signal (Snc) indicative whether a distance between the navigation device and a reference position is less than a predetermined value, a data storage unit for storing the first integration result, the second integration result, the first coefficient and the second coefficient for states wherein the proximity signal is positive, a matrix solving unit for solving a set of equations based on the first integration result, the second integration result, the first coefficient and the second coefficient retrieved from the data storage unit, a controller for controlling the first integration unit, the second integration unit, the first auxiliary integration unit, the second auxiliary integration unit data storage unit, the data storage unit and the matrix solving unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- ,θ
-
13. Navigation device comprising
a navigation sensor unit, a magnetic field sensor unit, and a proximity detector, wherein the navigation device is arranged to be moved, the navigation sensor unit being arranged for providing a navigation signal, the magnetic field sensor unit being arranged for providing a magnetic field signal indicative for a magnetic field strength, the proximity detector being arranged for providing a proximity signal (Snc) indicative whether a distance between the navigation device and a reference position is less than a predetermined value, and further comprising a first integration unit for integrating the navigation signal and for providing a first integration result (p), a second integration unit for calculating a path-integral of the magnetic field signal using the navigation signal, and for providing a second integration result (m), a first auxiliary integration unit for providing a first coefficient (α - ),
a second auxiliary integration unit for providing a second coefficient (φ
). - View Dependent Claims (14, 15)
- ),
-
16. Navigation server comprising
a data storage unit for storing a first integration result obtained from a first integration unit for integrating a navigation signal, a second integration result obtained from a second integration unit for calculating a path-integral of the magnetic field signal using the navigation signal, a first coefficient obtained from a first auxiliary integration unit and a second coefficient obtained from a second auxiliary integration unit, a matrix solving unit for solving a set of equations based on the first integration result, the second integration result, the first coefficient and the second coefficient retrieved from the data storage unit, a controller for controlling the first integration unit, the second integration unit, the first auxiliary integration unit, the second auxiliary integration unit, the data storage unit and the matrix solving unit.
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18. Vehicle provided with a navigation device comprising
a navigation sensor unit, a magnetic field sensor unit, and a proximity detector, wherein the navigation device is arranged to be moved, the navigation sensor unit being arranged for providing a navigation signal, the magnetic field sensor unit being arranged for providing a magnetic field signal indicative for a magnetic field strength, the proximity detector being arranged for providing a proximity signal (Snc) indicative whether a distance between the navigation device and a reference position is less than a predetermined value, and further comprising a first integration unit for integrating the navigation signal and for providing a first integration result (p), a second integration unit for calculating a path-integral of the magnetic field signal using the navigation signal, and for providing a second integration result (m), a first auxiliary integration unit for providing a first coefficient (α - ),
a second auxiliary integration unit for providing a second coefficient (φ
). - View Dependent Claims (19)
- ),
-
20. Method for navigating comprising the steps of
providing a navigation signal with navigation information, providing a magnetic field signal indicative for a magnetic field strength, integrating the navigation signal and providing a first integration result (p), determining a path integral of magnetic field signal using the navigation signal and providing a second integration result (m), carrying out a first auxiliary integration resulting in a first coefficient (α - ),
carrying out a second auxiliary integration resulting in a second coefficient (φ
),providing a proximity signal indicative whether a distance between the navigation device and a reference position is less than a predetermined value, storing the first integration result, the second integration result, the first reference integration result and the second reference integration result for states wherein the proximity is positive, solving a set of equations based on the first integration result, the second integration result, the first reference integration result and the second reference integration result retrieved from the data storage unit. - View Dependent Claims (21)
- ),
Specification