The Sea Route Planning for Survey Vessel Intelligently Navigating to the Survey Lines

Abstract

Marine surveying is an important part of marine environment monitoring systems. In order to improve the accuracy of marine surveying and reduce investment in artificial stations, it is necessary to use high-precision GNSS for shipborne navigation measurements. The basic measurement is based on the survey lines that are already planned by surveyors. In response to the needs of survey vessels sailing to the survey line, a method framework for the shortest route planning is proposed. Then an intelligent navigation system for survey vessels is established, which can be applied to online navigation of survey vessels. The essence of the framework is that the vessel can travel along the shortest route to the designated survey line under the limitation of its own minimum turning radius. Comparison and analysis of experiments show that the framework achieves better optimization. The experimental results show that our proposed method can enable the vessel to sail along a shorter path and reach the starting point of the survey line at the specified angle.

Profile Autonomous Underwater Vehicle System for Offshore Surveys

“…The spacing of the measuring equipment on submerged buoys is relatively sparse, making it difficult to meet offshore survey profile resolution requirements [ 13 ]. At present, most offshore profile surveys rely on survey ships [ 14 ]. Historically, the density in the space and time of oceanographic observations has been limited by the cost of operating ships [ 15 ].…”

Research on Measurement of Multi-beam Transducer Based on Analytic Geometry Method

“…As a way to obtain hydrological environment elements, marine surveying is an important part of marine environment monitoring [1].Bathymetric mapping is traditionally implemented using ship born single-beam, multi-beam, and side-scan sonar sensors [2].In recent days, modern multi-beam echo sounder (MBES) techniques have made the conventional single-beam echo sounder (SBES) obsolete whereby, the use of MBES has greatly improved the accuracy, efficiency, and spatial resolution of coastal and ocean mapping [3].In many fields, due to its high-resolution imaging capability, MBES is widely used for seabed geomorphology surveying and scientific research with various purposes [4].The key of multi-beam detection system lies in the design of coverage width and overlap rate. However, in practical application, the real seabed situation is complex, so it is necessary to design the survey line interval according to the specific situation.If the spacing between survey lines is too narrow, although the resolution requirements of the seabed topography are met, it increases overwork and reduces operation efficiency; if the spacing between survey lines is too wide, it greatly reduces the resolution of the seabed topography and cannot guarantee the quality of the measurement results [5].In the more than 40 years of development of multi-beam sounding technology, wide coverage and high precision sounding performance have always been the focus and difficulty of multi-beam sounding technology [6].Therefore, the design and calculation of coverage width and overlap rate in actual detection is of great significance for detection.…”

A Real-Time GNSS-R System for Monitoring Sea Surface Wind Speed and Significant Wave Height

“…Environmental data collecting that is efficient and accurate is critical for operations including maritime production, resource preservation, disaster monitoring, and marine warfare. Traditional sea condition monitoring methods include buoys [ 1 ], current meters [ 2 ], and survey vessels [ 3 , 4 ]. However, the detection range is limited, and only point or line sea surface information can be collected, and the operating method is severely limited by maritime weather circumstances.…”