Method for the geographical selection of global navigation satellite system elements

Patent metadata

Field	Value
Publication number	US-10094934-B2
Application number	US-201414475769-A
Country	US
Kind code	B2
Filing date	Sep 3, 2014
Priority date	Sep 3, 2014
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A system to select a type of satellite from a plurality of types of satellites in a multi-constellation of satellites is provided. The system includes at least a first receiver configured to input signals from a first type of satellite and a second receiver configured to input signals from a second type of satellite and a processor. The processor: executes a multi-constellation-selection software module to associate a current position with a mapping feature and select at least one selected type of satellite from the plurality of types of satellites based on the associated mapping feature; executes a compute-position/velocity/time (PVT) software module to compute a current position/velocity/time based on at least one selected input signal input at a receiver associated with the at least one selected type of satellite; and feeds the computed current position/velocity/time to the multi-constellation-selection software module based on the execution of the compute-PVT software module.

First claim

What is claimed is:

1. A system to select one or more types of satellites from a plurality of types of satellites in a multi-constellation of satellites, the system comprising:
a plurality of receivers including at least:
a first receiver configured to input signals from a first type of satellite; and
a second receiver configured to input signals from a second type of satellite;

a processor configured to:
execute a multi-constellation-selection software module to:
associate a current position with a mapping feature, wherein mapping features include at least one of: a plurality of grid points (GP);
a plurality of complex polygons (CP); and a plurality of combinations of complex polygons and grid points;
select at least one selected type of satellite from the plurality of types of satellites based on the associated mapping feature; and

execute a compute-position/velocity/time (PVT) software module in order to compute a current position/velocity/time based on at least one selected input signal input at a receiver associated with the at least one selected type of satellite; and
feed the computed current position/velocity/time to the multi-constellation-selection software module based on the execution of the compute-PVT software module, wherein the system is configured to implement rules of operation for the at least one selected type of satellite.

2. The system of claim 1 , wherein the first type of satellite is selected from a type of satellite in a currently available Global Navigation System Satellite (GNSS), wherein the second type of satellite is selected from a type of satellite in the currently available Global Navigation System Satellite (GNSS), wherein the first type of satellite is different from the second type of satellite.

3. The system of claim 1 , wherein the first type of satellite is different from the second type of satellite.

4. The system of claim 1 , wherein the first type of satellite is different from the second type of satellite, and wherein at least one of the first and the second type of satellite is an SBAS satellite.

5. The system of claim 1 , wherein the multi-constellation-selection software module includes a database including information including:
the multi constellation selection database part number;
a list of currently active Global Navigation System Satellite constellations;
a list of currently active Satellite-Based Augmentation System providers; and
a list of geopolitical regions.

6. The system of claim 5 , wherein the list of geopolitical regions further includes:
allowed Global Navigation System Satellite constellations for the geopolitical regions; and
Satellite-Based Augmentation System providers for the geopolitical regions.

7. The system of claim 5 , wherein
the plurality of complex polygons are arranged in a non-overlapping pattern that segment and span the earth.

8. The system of claim 5 , wherein
the plurality of grid points comprise a plurality of latitude/longitude pairs that span the earth in a grid.

9. The system of claim 5 , wherein the plurality of combinations of complex polygons and grid points include:
at least one complex polygon; and
a plurality of latitude/longitude pairs that span at least one portion of the earth in a grid.

10. The system of claim 1 , further comprising:
at least one antenna communicatively coupled via communication links to at least one first type of satellite and at least one second type of satellite.

Assignees

• Honeywell Int Inc

Inventors

• Savoy Jr John D
• Krishnan Vignesh
• Woodworth Kent

Classifications

• G01S19/423

  by combining or switching between position solutions derived from different satellite radio beacon positioning systems · CPC title

• G01S19/03

  Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers · CPC title

• G01S19/48

  by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system · CPC title

• G01S19/33

  Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS · CPC title

• G01S19/45 Primary

  by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement · CPC title