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利用AIS数据获取某区域闲置船舶信息,对其进行统计分析,并换算成船舶富余运力,为航运相关企业全面了解该区域船舶富余运力提供一条新途径当前,关于船舶富余运力的研究主要分为两类:一类是某区域一定时期内由于各种原因而闲置的船舶数量和吨位的统计,直观地反映了该区域一定时期内船舶运力富余状况,即运力研究;另一类则是研究航运市场的即期运价,从侧面反映相应时期内的船舶富余运力,即运价指数研究。运价指数主要是针对航运市场上运价变化所做的
The use of AIS data to obtain the information of a ship in a certain area, to carry out statistical analysis and convert it into the spare capacity of a ship provides a new way for shipping-related enterprises to fully understand the spare capacity of the ship. Currently, the research on the excess capacity of a ship is mainly divided into two Class: The statistics of the number and tonnage of ships that have been idle for a variety of reasons during a certain period in a certain region intuitively reflect the surplus capacity of ships in a certain period in the region, that is, the research on capacity; the other is the study of the shipping market Of the spot tariffs, from the side reflect the corresponding period of the remaining capacity of the ship, that is, freight index research. The freight index is mainly aimed at the freight rate changes in the shipping market