METHOD AND SYSTEM FOR THE BUILDING UP OF A ROADMAP AND FOR THE DETERMINATION OF THE POSITION OF A VEHICLE
First Claim
1. Method for the building up of a special electronic roadmap for a vehicle to indicate the position of the vehicle on a road in a geographic area, comprising a computer connected to a display and an internal memory connected to the computer, and which is based on an electronic roadmap provided and established with the help of data from a satellite navigation system,characterised in thata) the vehicle is fitted with sensors to measure parameters such as movement and orientation of the vehicle, said parameters are registered and stored in true time and comprise:
- its compass direction—
(Kr), (40)its angle of incline—
(Sv), (41)its angle of tilt—
(Kv), (42)its height above sea level—
(hoh), (43) and alsoa radar picture of the road surface and the surrounding terrain and which changes as the vehicle moves forwards (44)b) the vehicle is driven along a given route where said signals from the sensors in the electronic roadmap base are measured, registered and stored, said parameters are stored and added to the corresponding position coordinates for said route in the electronic roadmap, andc) with the measurements the exact position coordinates for the vehicle are established in the electronic roadmap with the help of data from a satellite navigation system, such as GPS registrations, which are registered in, an in itself, known way.
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Accused Products
Abstract
A method is described for the building up of a special electronic roadmap for a vehicle, for the indication of the position of the vehicle on a road in a geographic area comprising a computer connected to a display and an internal memory connected to the computer, and which is based on an electronic roadmap provided and established with the help of data from a satellite navigation system, characterised in that a) the vehicle is fitted with sensors for the measurement of parameters such as movement and orientation of the vehicle, said parameters are registered and stored in true time and comprise: —its compass direction —Kr, (40)—its angle of incline —Sv, (41)—its angle of tilt —Kv, (42)—its height above sea level —(hoh), (43) and also —a radar picture of the road surface and the surrounding terrain and which change as the vehicle move forwards, (44) b) the vehicle is driven along a given route and said signals from the sensors in the electronic roadmap base are measured, registered and stored, said parameters are stored and added to the corresponding position coordinates for said route in the electronic roadmap, and c) with the measurements the exact position coordinates in the electronic roadmap are established for the vehicle with the help of data from a satellite navigation system, such as GPS registering, which are registered in, an in itself, known way. A method and a system are also described for establishing the position of a vehicle along a road without having to use data from satellite navigation.
11 Citations
18 Claims
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1. Method for the building up of a special electronic roadmap for a vehicle to indicate the position of the vehicle on a road in a geographic area, comprising a computer connected to a display and an internal memory connected to the computer, and which is based on an electronic roadmap provided and established with the help of data from a satellite navigation system,
characterised in that a) the vehicle is fitted with sensors to measure parameters such as movement and orientation of the vehicle, said parameters are registered and stored in true time and comprise: -
its compass direction—
(Kr), (40)its angle of incline—
(Sv), (41)its angle of tilt—
(Kv), (42)its height above sea level—
(hoh), (43) and alsoa radar picture of the road surface and the surrounding terrain and which changes as the vehicle moves forwards (44) b) the vehicle is driven along a given route where said signals from the sensors in the electronic roadmap base are measured, registered and stored, said parameters are stored and added to the corresponding position coordinates for said route in the electronic roadmap, and c) with the measurements the exact position coordinates for the vehicle are established in the electronic roadmap with the help of data from a satellite navigation system, such as GPS registrations, which are registered in, an in itself, known way. - View Dependent Claims (2, 3, 4, 5)
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6. Method for determination of the position of a vehicle on a road in a geographic area, where the vehicle is fitted with a special electronic roadmap, a positioning system comprising a computer connected to a display and an internal memory connected to the computer,
characterised in that a) the vehicle is driven along any type of road and where signals from sensors for the following parameters are measured and registered in true time: -
its compass direction (Kr), its angle of incline (Sv), its angle of tilt (Kv), its height above sea level (hoh), and also that a radar picture is formed of the road surface and the surrounding terrain and which changes as the vehicle move forwards, b) the received signals are transferred and processed and compared with the previously taken up, corresponding, true time coordinate parameters, as an agreement between the measured values gives an indication of the position of the vehicle on the road, and c) the relevant information about the position of the vehicle is shown via the special electronic roadmap on the display. - View Dependent Claims (7, 8, 9)
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10. Method for the building up of an electronic roadmap, and also for determining the position of a vehicle on a road in a geographic area, where the vehicle is fitted with a special electronic roadmap, a positioning system comprising a computer connected to a display and an internal memory connected to the computer,
characterised in that a) for a given number of sensor measurements S1 to Sa over a time interval t1 to t2 for a given sensor, where a is a whole number, a correlation is performed for corresponding database data D1 to Dm where m is a whole number and m> - a such as Equation 1 has a maximum value to show the best correlation
- View Dependent Claims (13)
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11. Method for the building up of an electric roadmap, and also determining the position of a vehicle on a road in a geographic area, where the vehicle is fitted with a special electronic roadmap, a positioning system comprising a computer connected to a display and an internal memory connected to the computer,
characterised in that b) for a given number of sensor measurements S1,1 to Sa,h over a time interval t1 to t2 for sensor no. 1 to sensor no. h where a and h are whole numbers, a composite signal U1 to Ua is generated in accordance with the equation Eq. 2: -
Ui=F(Si,1,Si,2 . . . Si,h)
Eq. 2where F is a conversion function, whereupon a correlation of Ui is carried out with the corresponding database data E1 to Em where m is a whole number and m>
a and an E is composite database data, as Eq. 1 has a maximum value to show the best correlation;
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12. Method for building up of an electronic roadmap, and also for determination of the position of a vehicle on a road in a geographic area, where the vehicle is fitted with a special electronic roadmap, a positioning system comprising a computer connected to a display and an internal memory connected to the computer, characterised by a combination of a) and b) for Eq. 1 to 3 is used to find the best solution between the need for computer calculating power and certainty that the indicated position of the car is correct, possibly that a neural network is used to perform the data processing and to find the position of the car from the measurements from the sensors.
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14. System for determination of the position of a vehicle on any type of road, characterised in that the vehicle comprises:
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a data unit in which an electronic roadmap is stored, said roadmap comprises a number of parameters for determination of any position along routes, a display unit for showing the navigation a number of sensors for measuring and registering position determining parameters for registration of; compass direction—
Kr, (40)angle of incline—
Sv, (41)angle of tilt—
Kv, (42)height above sea level—
(hoh), (43) and alsoa radar picture of the road surface and the surrounding terrain which changes as the vehicle move forwards, (44) and optionally that it comprises sensors for measurements of air pressure of the tyres (61), any electronic noise in the area through which the road runs (60). a camera (63) for optical photography of the surroundings that change as the vehicle moves forwards distance measuring unit for registering distance travelled (62) acceleration meter (64), and force of gravity measuring device (65), and also Data unit with internet connection Data unit with alternative communication system Radio link as the data unit also comprises a part unit which is set up to perform a comparison between continuously registered position determining parameters and the parameters installed in advance, and said part unit is set up to send out an indication of the exact position of the vehicle along the route to the display unit which shows the position. - View Dependent Claims (15, 16, 17, 18)
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Specification