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US 11,686,857 B2Granted
Geographical feature/artificial structures detection and application for GNSS navigation with map information
AssigneeSamsung Electronics Co., Ltd.
InventorsDebo Sun, Qi Li
Life of this patent
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Abstract
A method of navigating with a global navigation satellite system (GNSS) includes receiving a GNSS signal, calculating a GNSS navigation solution according to the GNSS identifying map information corresponding to the GNSS navigation solution, detecting features from the identified map information, and correcting a GNSS navigation based on the features detected from the map information and the GNSS signal.
Claims15
A method of navigating with a global navigation satellite system (GNSS), comprising:
- receiving, with a GNSS receiver, GNSS signals from a plurality of GNSS satellites;
- calculating a GNSS navigation solution according to the received GNSS signals;
- identifying map information corresponding to the GNSS navigation solution;
- detecting features from the identified map information, wherein the detected features include at least one of a travel direction and an obstructed signal area entrance position, or an obstructed signal area exit position and an obstructed signal area exit direction;
- determining a first angle between a line along the obstructed signal area exit direction and a line between the obstructed signal area exit position and the GNSS navigation solution, or a second angle between a line along the travel direction and a line between the obstructed signal area entrance position and the GNSS navigation solution;
- and
- correcting the GNSS navigation solution based on the determined first or second angle.
4 more elements
A system for navigating, comprising:
- an electronic device including a global navigation satellite system (GNSS) receiver;
- a processor;
- and
- a non-transitory computer-readable storage medium storing a set of instructions which, when executed by the processor, causes the processor to:
- receive, from the GNSS receiver, GNSS signals from a plurality of GNSS satellites;
- calculate a GNSS navigation solution according to the received GNSS signals;
- identify map information corresponding to the GNSS navigation solution;
- detect features from the identified map information, wherein the detected features include at least one of a travel direction and an obstructed signal area entrance position, or an obstructed signal area exit position and an obstructed signal area exit direction;
- determine a first angle between a line along the obstructed signal area exit direction and a line between the obstructed signal area exit position and the GNSS navigation solution, or a second angle between a line along the travel direction and a line between the obstructed signal area entrance position and the GNSS navigation solution;
- and
- correct the GNSS navigation solution based on the determined first or second angle.
8 more elements
An electronic device for navigating with a global navigation satellite system (GNSS), comprising:
- a GNSS receiver;
- and
- a processor configured to:
- receive, from the GNSS receiver, GNSS signals from a plurality of GNSS satellites,
- calculate a GNSS navigation solution according to the received GNSS signals,
- identify map information corresponding to the GNSS navigation solution,
- detect features from the identified map information, wherein the detected features include at least one of a travel direction and an obstructed signal area entrance position, or an obstructed signal area exit position and an obstructed signal area exit direction,
- determine a first angle between a line along the obstructed signal area exit direction and a line between the obstructed signal area exit position and the GNSS navigation solution, or a second angle between a line along the travel direction and a line between the obstructed signal area entrance position and the GNSS navigation solution, and
- correct the GNSS navigation solution based on the determined first or second angle.
6 more elements
Dependencies are inferred from the claim text.