Method for operating a correction service system and correction service system

Patent metadata

Field	Value
Publication number	US-11255976-B2
Application number	US-201816603498-A
Country	US
Kind code	B2
Filing date	Mar 1, 2018
Priority date	Apr 12, 2017
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A method for operating a correction service system (CSS), for a satellite navigation system (SNS), having reference-stations (RS) (in a coordinate-system (CS)) having known/fixed coordinates, the RS being operated to receive satellite signals, at least one correction-value (CV) being predefined as a function of the signals received by the selected RS and its coordinates, and is provided to user-devices of the SNS, the at least one CV being checked for plausibility. The CSS divides the CS into multiple-regions, in which user-devices determine an individual position as a function of the plausibility of the received CV, at least one specific-region being selected as a function of the plausibility of the CV, the specific-region(s) being assigned the at least one CV, at least one information-packet being generated, which contains indications about the plausibility of the CV and the specific-region(s), the information-packet(s) being provided to at least one selected group of user-devices.

First claim

What is claimed is:

1. A method for operating a correction service system for a satellite-based navigation system, the method comprising:
operating multiple reference stations to receive satellite signals of multiple satellites of the satellite-based navigation system, wherein the correction service system includes the multiple reference stations in a coordinate system, the reference stations having known and fixed coordinates; and
predefining at least one correction value as a function of satellite signals received by at least one selected reference station of the multiple reference stations and of the known coordinates of the at least one selected reference station, and providing the at least one correction value to multiple user devices of the satellite-based navigation system;
wherein the correction service system divides the coordinate system into multiple regions, in which the multiple user devices are each able to determine an individual position as a function of the received at least one correction value,
wherein at least one specific region is selected from the multiple regions as a function of a plausibility of the at least one correction value,
wherein the at least one specific region is assigned the at least one correction value,
wherein at least one information packet is generated, which contains indications about the plausibility of the at least one correction value and about the at least one specific region, and
wherein the at least one information packet is provided to a selected group of the multiple user devices.

2. The method of claim 1 , wherein the multiple reference stations are each assigned to at least one of the multiple regions, and wherein the at least one correction value is assigned to the at least one specific region as a function of the at least one selected reference station.

3. The method of claim 1 , wherein the at least one specific region is determined as a function of the known and fixed coordinates of the at least one selected reference station.

4. The method of claim 1 , wherein the selected group of the multiple user devices is assigned user devices that are located in the at least one specific region or which move in the direction of the at least one specific region.

5. The method of claim 1 , wherein the at least one information packet contains a first use recommendation for the selected group of the multiple user devices, to instruct the selected group of the multiple user devices to take the plausibility of the at least one correction value into account when determining the individual position of each.

6. The method of claim 1 , wherein at least one selected satellite of the multiple satellites of the satellite-based navigation system and/or at least one selected constellation of the multiple satellites of the satellite-based navigation system is/are ascertained, which are assigned to the at least one correction value, and wherein the at least one information packet containing a second use recommendation for the selected group of the multiple user devices, in order to instruct the selected group of the multiple user devices to take the plausibility of the correction values assigned to the at least one selected satellite and/or to the at least one selected constellation into account when determining the individual position of each.

7. The method of claim 1 , wherein atmospheric disturbances, which influence the transmission of the satellite signals assigned to the at least one correction value, are ascertained, indications regarding the atmospheric disturbances being provided via the at least one information packet to the selected group of the multiple user devices.

8. The method of claim 1 , wherein the at least one correction value is predefined as a function of satellite signals received by at least multiple selected reference stations of the multiple reference stations, in particular, by all reference stations and of the known coordinates of the at least multiple selected reference stations, in particular, of all reference stations and is provided to the multiple user devices of the satellite-based navigation system.

9. The method of claim 1 , wherein the at least one information packet is provided to the selected group of the multiple user devices with the at least one communication satellite and/or a mobile communication network.

10. A method for operating a satellite-based navigation system, which includes multiple satellites, multiple user devices and a correction service system, the method comprising:
operating multiple reference stations to receive satellite signals of the multiple satellites of the satellite-based navigation system, wherein the correction service system includes the multiple reference stations in a coordinate system, the reference stations having known and fixed coordinates; and
predefining at least one correction value as a function of satellite signals received by at least one selected reference station of the multiple reference stations and of the known coordinates of the at least one selected reference station, and providing the at least one correction value to the multiple user devices of the satellite-based navigation system,
wherein the correction service system divides the coordinate system into multiple regions, in which the multiple user devices are each able to determine an individual position as a function of the received at least one correction value,
wherein at least one specific region is selected from the multiple regions as a function of the plausibility of the at least one correction value,
wherein the at least one specific region is assigned the at least one correction value,
wherein at least one information packet is generated, which contains at least indications about a plausibility of the at least one correction value and about the at least one specific region, and
wherein the at least one information packet is provided to a selected group of the multiple user devices.

11. A correction service system, comprising:
multiple reference stations in a coordinate system, the reference stations having known and fixed coordinates;
wherein the correction service system, which includes the multiple reference stations in a coordinate system, the reference stations having known and fixed coordinates, is configured to perform the following:
operating the multiple reference stations to receive satellite signals of multiple satellites of the satellite-based navigation system; and
predefining at least one correction value as a function of satellite signals received by at least one selected reference station of the multiple reference stations and of the known coordinates of the at least one selected reference station, and providing the at least one correction value to multiple user devices of the satellite-based navigation system;
wherein the correction service system divides the coordinate system into multiple regions, in which the multiple user devices are each able to determine an individual position as a function of the received at least one correction value,
wherein at least one specific region is selected from the multiple regions as a function of the plausibility of the at least one correction value,
wherein the at least one specific region is assigned the at least one correction value,
wherein at least one information packet is generated, which contains at least indications about a plausibility of the at least one correction value and about the at least one specific region, and
wherein the at least one information packet is provided to a selected group of the multiple user devices.

12. A satellite-based navigation system, comprising:
multiple satellites;
multiple user devices;

Assignees

• Bosch Gmbh Robert

Inventors

• Strobel Jens
• Langer Markus

Classifications

• G01S19/072

  Ionosphere corrections · CPC title

• G01S19/073 Primary

  involving a network of fixed stations · CPC title

• G01S19/07

  providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections · CPC title