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Determination of position, velocity and/or heading by simultaneous use of on-device and on-vehicle information

  • US 10,041,798 B2
  • Filed: 11/14/2013
  • Issued: 08/07/2018
  • Est. Priority Date: 12/06/2012
  • Status: Active Grant
First Claim
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1. A method to improve a navigation solution, the method comprising:

  • communicatively coupling a first navigation system to a second navigation system, wherein the first navigation system is coupled to the second navigation system to;

    receive a signal from the second navigation system;

    receiving, at the first navigation system, the signal from the second navigation system, wherein the signal comprises at least one of a sensor signal or a global navigation satellite system (GNASS ) signal;

    receiving, at the first navigation system, a first sensor signal from a sensor in the first navigation system;

    comparing, at the first navigation system, quality or type of the signal from the second navigation system and the first sensor signal from the first navigation system, including comparing a first sensor location with respect to the first navigation system the first sensor signal is obtained to a second sensor location with respect to the second navigation system the signal is obtained; and

    setting the navigation solution at the first navigation system based on a comparison of the signal from the second navigation system, wherein either the first sensor signal from the sensor in the first navigation system or the signal from the second navigation system is insufficient to determine the navigation solution, and wherein setting the navigation solution at the first navigation system comprises determining the navigation solution by integrating the signal from the second navigation system with the first sensor signal from the sensor in the first navigation system.

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