Method for estimating the geographical latitude, longitude and elevation of a mobile electronic telecommunication device (TD)
First Claim
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1. A method for estimating the geographical latitude, longitude and elevation of a mobile electronic telecommunication device (TD), the method comprising:
- drawing randomly multiple sets of three responses;
drawing of responses include the time of the Ping—
Packet Internet Groper—
and that of the response;
performing signal analysis of said responses; and
the distance between the TD and the responder based on the round-trip-time of each response;
generating from each set of responses a possible location (x, y, and z coordinates) of the TD;
generating a signal quality factor;
estimating the possible location for the mobile device;
generating statistical information from the set of generated possible locations;
selecting the most accurate location of the TD based on predetermined statistical parameters;
performing statistical analysis on the collected statistical information to determine whether the TD is stationary or not;
determining the velocity and acceleration if the telecommunication device is not stationary.
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Abstract
A method for estimating the geographical latitude, longitude and elevation of a mobile electronic telecommunication device (TD) is provided. The method draws random information over a given time period from multiple responders. A triangulation and signal quality analysis is performed to determine the possible location of the TD. Using the statistical information and its analysis the location (x, y and z coordinates) as well as the velocity and acceleration of the device is estimated. The present invention provides extremely accurate location information.
11 Citations
8 Claims
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1. A method for estimating the geographical latitude, longitude and elevation of a mobile electronic telecommunication device (TD), the method comprising:
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drawing randomly multiple sets of three responses; drawing of responses include the time of the Ping—
Packet Internet Groper—
and that of the response;
performing signal analysis of said responses; and
the distance between the TD and the responder based on the round-trip-time of each response;generating from each set of responses a possible location (x, y, and z coordinates) of the TD; generating a signal quality factor; estimating the possible location for the mobile device; generating statistical information from the set of generated possible locations; selecting the most accurate location of the TD based on predetermined statistical parameters; performing statistical analysis on the collected statistical information to determine whether the TD is stationary or not; determining the velocity and acceleration if the telecommunication device is not stationary. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification