Swiss Timing Ltd

Friedrich-Alexander-Universitat Erlangen-Nürnberg

Thomas Kautz

Bjoern Michael Eskofier

Sebastian Scholz

Alexander Hiemann

The invention relates to a method (MTH) for estimating the coverage area of a directive antenna of a local positioning system while setting up said system, said antenna being located in the vicinity of an area of interest, the method (MTH) comprising the following steps: &#x2014;Distributing (DIS_TR) a plurality of transponders over the area of interest&#x2014;Performing (MSD_SS) measurements of signal strength between the antenna and said transponders&#x2014;Estimating (EST_CV) the coverage area by using said measurements.

Method for estimating the covered area of a directive antenna of a local positioning system while setting up said system

A method for calculating the position of an athlete, referred to as target, on a sports field, including estimating an approximate position of the target using a radio-based positioning system, the system including tracking sensors attached to several athletes on the sports field and antennas installed around the sports field, defining a search space around the approximate position, detecting an athlete in the search space using an optical-based positioning system, the system including cameras installed above and/or around the sports field and image recognition device, determining an accurate position of the detected athlete, attributing the accurate position to the target.

Method for calculating a position of an athlete on a sports field

A method for calibrating a time difference of arrival-based local positioning system for k&#x2212;D localization, k=2 or 3, includes collecting N sets of time difference of arrival measurements related to a mobile node, N&#x2265;2, each nset of measurements being performed by Bn beacon nodes among B beacon nodes of the positioning system while the mobile node is located is a nposition within a region covered by the positioning system, Bn&#x2265;k+2, and determining optimal beacon positions that minimize an objective function depending on N residual error vectors, the calculation of each nposition of the mobile node using beacon positions and the nset of measurements, the calculation allowing the calculation of the nresidual error vector.

Method for calibrating a local positioning system based on time-difference-of-arrival measurements

A method for calculating a position of an object of interest in an environment. The method includes: predicting a position and an orientation of the object of interest in the environment; selecting a subset of base stations among a set of base stations located within the environment, by using the predicted position and orientation, and a radiation pattern of a system including the object of interest and a mobile transponder attached to the object of interest; and calculating an actual position of the object of interest, using time of arrival or time difference of arrival measurements between the base stations of the subset and the mobile transponder.

Method for calculating a position of an object of interest

The invention relates to method for calculating a position of a transponder within an area of interest, by means of a local positioning system comprising a set of directive antennae located in the vicinity of the area of interest, each antenna having a coverage area, the method comprising the following steps:

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Sangerhausen, Germany

Thomas Kautz