Patent ID: 11867510
Assignee: TRIMBLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A navigation system for vehicles and other moving bodies, comprising:
an inertial navigation unit including an inertial measurement unit (IMU) and an IMU dead reckoning module processing a set of measurements provided by the IMU to generate a first output, wherein the navigation system is positioned on a navigable body and wherein the first output includes a first velocity and a heading of the navigable body;
a vision-based navigation system including an image sensor sequentially capturing a pair of images of a space and further including a vision-based dead reckoning module processing the pair of images based on the heading to generate a second output including a second velocity of the navigable body; and
a processor with an integration module processing the first and second outputs to generate navigation data including modifying the first velocity based on the second velocity,
wherein, after the first velocity is modified based on the second velocity, the IMU dead reckoning module processes an additional set of measurements provided by the IMU to generate a third output including a third velocity of the navigable body and wherein the integration module processes the third output to generate the navigation data based on the third output and the modified first velocity.