FAST GNSS RECEIVER CONVERGENCE BY RELATIVE POSITIONING
First Claim
1. A method of implementing fast GNSS convergence by relative positioning, said method comprising:
- shutting down a GNSS receiver which is coupled with a mobile machine, wherein said GNSS receiver is in a converged state at shut down;
monitoring a movement sensor to determine if net movement of a GNSS antenna coupled with said mobile machine exceeds a threshold net movement parameter while said GNSS receiver is shut down; and
upon power up of said GNSS receiver,initiating a shorter convergence algorithm in response to determining that said threshold net movement parameter has not been exceeded; and
initiating said shorter convergence algorithm in response to determining that said threshold net movement parameter has been exceeded but information from said movement sensor has been used to update the location of said GNSS receiver since said shut down.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of implementing fast GNSS convergence by relative positioning is disclosed. A GNSS receiver which is coupled with a mobile machine is shut down. The GNSS receiver is in a converged state at shut down. A movement sensor is monitored to determine if net movement of a GNSS antenna coupled with the mobile machine exceeds a threshold net movement parameter while the GNSS receiver is shut down. Upon power up of the GNSS receiver, a shorter convergence algorithm is initiated in response to determining that the threshold net movement parameter has not been exceeded. The shorter convergence algorithm is also initiated upon power up of the GNSS receiver in response to determining that the threshold net movement parameter has been exceeded but information from the movement sensor has been used to update the location of the GNSS receiver since said shut down.
-
Citations
20 Claims
-
1. A method of implementing fast GNSS convergence by relative positioning, said method comprising:
-
shutting down a GNSS receiver which is coupled with a mobile machine, wherein said GNSS receiver is in a converged state at shut down; monitoring a movement sensor to determine if net movement of a GNSS antenna coupled with said mobile machine exceeds a threshold net movement parameter while said GNSS receiver is shut down; and upon power up of said GNSS receiver, initiating a shorter convergence algorithm in response to determining that said threshold net movement parameter has not been exceeded; and initiating said shorter convergence algorithm in response to determining that said threshold net movement parameter has been exceeded but information from said movement sensor has been used to update the location of said GNSS receiver since said shut down. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A non-transitory computer readable storage medium having computer readable instructions stored thereon for causing a computer system to perform a method of implementing fast GNSS convergence by relative positioning, said method comprising:
-
shutting down a GNSS receiver which is coupled with a mobile machine, wherein said GNSS receiver is in a converged state at shut down; monitoring a movement sensor to determine if net movement of a GNSS antenna coupled with said mobile machine exceeds a threshold net movement parameter while said GNSS receiver is shut down; and upon power up of said GNSS receiver, initiating a shorter convergence algorithm in response to determining that said threshold net movement parameter has not been exceeded; and initiating said shorter convergence algorithm in response to determining that said threshold net movement parameter has been exceeded but information from said movement sensor has been used to update the location of said GNSS receiver since said shut down. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A navigation system comprising:
-
a Global Navigation Satellite System (GNSS) receiver coupled with a mobile machine; a movement sensor configured to monitor movement of a GNSS antenna coupled with said mobile machine while said GNSS receiver is shut down; and a processor configured to cause said GNSS receiver to transition into a shut down state from a converged state and, upon subsequent power up of said GNSS receiver, to monitor said movement sensor to determine if net movement of a GNSS antenna coupled with said mobile machine exceeds a threshold net movement parameter while said GNSS receiver is shut down, to initiate a shorter convergence algorithm upon power up of said GNSS receiver in response to determining that said threshold net movement parameter has not been exceeded, and to initiate said shorter convergence algorithm upon power up of said GNSS receiver in response to determining that said threshold net movement parameter has been exceeded but information from said movement sensor has been used to update the location of said GNSS receiver since said shut down. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification