Investigating the Reliability of the Location Transmitted by V-Pass Terminals: Prompt Rescue of Fishing Vessels

Abstract

Fishing boats are equipped to quickly rescue ships and save lives in the event of an incident at sea; therefore, determination of the incident location is imperative for a swift response. According to the 2021 marine accidents by ship use statistics, fishing and non-fishing boats accounted for 64.6 and 35.4%, respectively, of the total 3053 ships involved in an accident. In addition to V-pass and the Automatic Identification System (AIS), several other types of terminals exist; however, approximately 91% of all registered fishing boats use V-pass terminals. Therefore, it is essential to know the exact location of fishing boats. However, little research has been conducted on V-pass equipment. Therefore, in this study, marine experiments were conducted using V-pass and AIS terminals that are mainly used in fishing boats. To determine the exact location of an incident and rapidly respond and rescue, this study compared the data saved in the terminals with the data received by the Vessel Traffic Service center. In the event of a maritime incident, the radio shadow areas and causes of the error in the location transmitter must be investigated to quickly rescue the fishing boat and to determine the root cause of the incident, respectively.

Accuracy of GNSS Position Stored in Fishing Boat Location Transmitters in Comparison with That of DGPS Position

“…Therefore, it is necessary to verify the accuracy of the global positioning system (GPS) location of the location transmitter in the fishing boat involved in an accident in order to investigate the accident that occurred. Because the location data transmitted from the fishing boat to the land relay station can be delayed by 30 s-7 min 30 s depending on the transmission conditions, this data alone cannot accurately determine the cause of the accident [3].…”

“…) and(3).Lat(E) = (34.123477 − 34(degree)) × 60 = 7.40862(1)Lat(V) = (34.123478 − 34(degree)) × 60 = 7.40868(2)Lat(A) = (34.123479 − 34(degree)) × 60 = 7.40874…”

Coastal Engineering: Sustainability and New Technologies

“…The data were compared with the results of the application of state-of-the-art equations for the calculation of pressures on crown walls. Park et al [6] conducted marine experiments using V-pass and AIS terminals in order to determine the location of fishing vessels and thus improve the prompt rescue of fishing vessels in the occurrence of accident. For the oscillating water column (OWC), one of the most important wave energy converters, Juan et al [7] presented a review of studies addressing the ways in which wave and geometric characteristics affect the performance of an OWC and those addressing the relationships between these characteristics and the hydrodynamic performance of an OWC.…”