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AIS BASED INTEGRITY MONITORING SYSTEM FOR A DIFFERENTIAL GLOBAL NAVIGATION SATELLITE SYSTEM TO OBTAIN IMPROVED DIFFERENTIAL GPS SERVICES WITHOUT A DIFFERENTIAL GPS BEACON RECEIVER
AIS BASED INTEGRITY MONITORING SYSTEM FOR A DIFFERENTIAL GLOBAL NAVIGATION SATELLITE SYSTEM TO OBTAIN IMPROVED DIFFERENTIAL GPS SERVICES WITHOUT A DIFFERENTIAL GPS BEACON RECEIVER
PURPOSE: An AIS based DGNSS(Differential Global Navigation Satellite System) integrity monitoring system is provided to enable accurate monitoring and wake tracking for a ship and thereby prevent and analyze collision of ships.;CONSTITUTION: An AIS virtual base station is connected to a DGPS(Differential GPS) base station transmitting error data through a network to receive satellite error data and transmit corrected error data created from the satellite error data. An AIS base station(150) receives and transmits the corrected error data transmitted from the AIS virtual base station. An integrity monitoring device(400) comprises an integrity monitoring GNSS receiver(410) and an integrity monitoring unit(420) which compares received data of the GNSS receiver with the corrected error data of an AIS terminal(200) to determine the integrity of the corrected error data and feeds back the integrity information to the AIS virtual base station.;COPYRIGHT KIPO 2012
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