Abstract
This paper shows the way how to collect the other ship's information with a text file by using AIS, ARPA and DGPS. The way to collect it is to receive NMEA sentences which are output from the nautical instruments and to mix them. The movement information, on ships which were not located AIS, are generated by the information of ARPA and DGPS. This system is made by using ship nautical instruments loaded with ordinary ships. So we verified the validity of this system, which was made in this research, by using T.S. "TOBAMARU" in Toba national college of maritime technology. This verification is held by fixed point observation at Irago Channel and assessment on own ship's difficulties during the navigating. As a result we can know these facts as follows: 1. The movement information on ships over 20 tons whether they loaded AIS or not by adjusting gain of radar can be easily picked out. 2. Our own ship's difficulties at a real time by using Enviroment Stress model during the navigating can be also assessed.
