MULTIPLE DATA SOURCES PEDESTRIAN NAVIGATION SYSTEM
First Claim
1. A method of pedestrian navigation based on an external positioning system and a Dead Reckoning (DR) system, the method comprising:
- obtaining DR position readings from a plurality of pedestrian-carried platforms and external position readings from a remote source which is independent of the pedestrian-carried platforms, wherein the obtaining is repeated for a plurality of locations associated with the plurality of pedestrian-carried platforms;
estimating, for each of the plurality of locations, an external positioning source error, based at least partially on the external position readings and the DR position readings;
applying an estimation function to the external position readings, the DR position readings, and the external positioning source error, for the plurality of locations, to yield a corrected estimated position for each of the plurality of locations; and
presenting the corrected estimated position for each of the plurality of locations to users of the pedestrian-carried platforms, respectively.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of pedestrian navigation based on an external positioning system and a Dead Reckoning (DR) system, us provided. The method includes: obtaining DR position readings from a plurality of pedestrian-carried platforms and external position readings from a remote source which is independent of the pedestrian-carried platforms, wherein the obtaining is repeated for a plurality of locations associated with the plurality of pedestrian-carried platforms; estimating, for each of the plurality of locations, an external positioning source error, based at least partially on the external position readings and the DR position readings; applying an estimation function to the external position readings, the DR position readings, and the external positioning source error, for the plurality of locations, to yield a corrected estimated position for each of the plurality of locations; and presenting the corrected estimated position for each of the plurality of locations to users of the pedestrian-carried platforms, respectively.
-
Citations
10 Claims
-
1. A method of pedestrian navigation based on an external positioning system and a Dead Reckoning (DR) system, the method comprising:
-
obtaining DR position readings from a plurality of pedestrian-carried platforms and external position readings from a remote source which is independent of the pedestrian-carried platforms, wherein the obtaining is repeated for a plurality of locations associated with the plurality of pedestrian-carried platforms; estimating, for each of the plurality of locations, an external positioning source error, based at least partially on the external position readings and the DR position readings; applying an estimation function to the external position readings, the DR position readings, and the external positioning source error, for the plurality of locations, to yield a corrected estimated position for each of the plurality of locations; and presenting the corrected estimated position for each of the plurality of locations to users of the pedestrian-carried platforms, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of pedestrian navigation based on an external positioning system and a Mapping using Simultaneously Learning And Mapping (SLAM) system, the method comprising:
-
obtaining external position readings from a remote external source, for determining an absolute position; determining entry to an indoor environment based once external position readings are no longer available; and using capturing device for determining a relative position within indoor environment coordinates based on predefined key points; and carrying out 3D mapping of the indoor environment based on capturing the indoor environment using various points of view while tracking said key points to achieve stereoscopic imaging, and using the 3D mapping for adjusting the relative positioning within the indoor environment.
-
-
10. A method of pedestrian navigation based on an external positioning system and a Dead Reckoning (DR) system, the method comprising:
-
obtaining external position readings from a remote external source, for determining an absolute position; obtaining DR readings from the DR system; obtaining movement readings from a plurality of sensors attached to a body of the pedestrian; and adjusting the DR readings based on physiological patterns derived from the movement readings obtained from the sensors; and applying an estimation function to the external position readings, the adjusted DR position readings, and the external positioning source error, to yield a corrected estimated position.
-
Specification