SYSTEM AND METHOD OF CONTINOUSLY TRACKING AT LEAST ONE COMPETITOR ON AN ATHLETICS TRACK

摘要

The invention concerns a system and method for continuously tracking at least one competitor on an athletics track (40), wherein the system comprises:- at least one wireless transmitter (20) operable to wirelessly submit a query provided with a timestamp,- at least one wearable transponder (10, 110, 210) attachable to the at least one competitor, the at least one wearable transponder being configured to receive the query, to generate a transponder specific response and to wirelessly transmit the response,- at least three stationary receivers (120, 220, 320) distributed across or around the athletics track, wherein each one of the three stationary receivers is configured to receive the transponder specific response and to determine a runtime, wherein the runtime is indicative of a point in time relative to the timestamp at which the transponder specific response has been received by the respective stationary receiver, and- a processing unit (50) connected to the at least three stationary receivers and configured to determine a position of the at least one wearable transponder relative to the athletics track or relative to the at least three stationary receivers on the basis of the runtimes received from the at least three stationary receivers.