Geo-localization assembly and methodology
A geo-localization device and methodology use a plurality of wireless localization technologies, predictive methods and filtering to deliver accurate and reliable 3-dimensional positioning data for static and moving objects both outdoor and indoor.
1. A method for calculating three-dimensional position data of a geo-localization device using a plurality of wireless localization technologies each providing a localization output signal, the method comprising the steps of:
determining the most accurate of the plurality of wireless localization technologies and identifying it as the first wireless localization technology;
retrieving the localization output signal from the first wireless localization technology;
calculating the three-dimensional position data of the geo-localization device;
identifying whether the three-dimensional position data is complete;
obtaining the localization output signal of a second most accurate wireless localization technology when it is determined the three-dimensional position data is not complete; and
recalculating the three-dimensional position data after each of the localization output signal from the next most accurate of the wireless localization technologies is incorporated into the recalculation.
2. A method as set forth in claim 1 wherein the step of recalculating the three-dimensional position data includes iteratively stepping through each of the localization output signal from each of the wireless localization technologies from the most accurate to the least accurate until the three-dimensional position data is complete.
3. A method as set forth in claim 2 including the step of creating a least most accurate localization output signal from an inertial measurement unit.
4. A method as set forth in claim 3 including the step of further recalculating the three-dimensional position data by incorporating the least most accurate localization output signal from the inertial measurement unit after the three-dimensional position data remains incomplete after all of the localization output signals from all of the plurality of wireless localization technologies are used.
5. A method as set forth in claim 1 including the step of operating independently of system connectivity.
6. A method as set forth in claim 1 wherein the method provides the user of the geo-localization system seamless tracking of positioning data for the geo-localization device as it transitions between indoor and outdoor locations.
7. A method as set forth in claim 1 wherein the method uses power management technology to minimize overall power consumption of the plurality of wireless technologies and protocols.
8. A method as set forth in claim 1 wherein the geo-localization devices can determine their location autonomously at the device level.
9. A method as set forth in claim 1 wherein the position of a device can be dead reckoned to predict the likely location of the device.