ASYNCHRONOUS INDOOR NAVIGATION SYSTEM AND METHOD USING GNSS

摘要

The present invention relates to an indoor navigation system and method using a GNSS, the system comprising: an external GNSS antenna which receives multiple satellite signals from multiple GNSS satellites; a satellite channel allocation device which separates the multiple satellite signals received from the external GNSS antenna and allocates the separated signals according to channels; a splitter which splits the channel-specific signals received from the satellite channel allocation device, such that the signals are distributed to GNSS radiant antennas and a combiner; the combiner which combines first satellite signals, which are the multiple satellite signal distributed by the splitter and are distance information from the external GNSS antenna to a reference GNSS receiver; the reference GNSS receiver which receives the multiple first satellite signals combined by the combiner, and the location of which is fixed; the GNSS radiant antennas, each of which receives and then emits second satellite signals, which are the multiple satellite signals distributed by the splitter and represent distance from the external GNSS antenna to a GNSS terminal; and a mobile GNSS terminal which receives the second satellite signals emitted from the respective GNSS radiant antennas, wirelessly receives distance measurement values of the collected first satellite signals from the reference GNSS receiver and distance measurement values of the collected second satellite signals from the GNSS terminal, and calculates the location of the GNSS terminal, whereby it is possible to locate a terminal or device including the terminal and increase the accuracy of the location thereof.