Ship collision risk analysis method based on AIS (automatic identification system) data

Abstract

The invention discloses a ship collision risk analysis method based on AIS (automatic identification system) data. Based on historical AIS data and standard ship selection and conversion, a density clustering algorithm is used for establishing a heat map of a ship collision risk to realize spatiotemporal visualization of the ship collision risk; based on real-time AIS data and the ship position field, the course direction field, and the navigational speed field, a regional ship collision risk assessment model is constructed, and a Gaussian kernel function kernel density estimation algorithm isused for proposing a dynamic ship collision risk visualization method to realize areal-time update of the regional ship collision risk. The ship collision risk analysis method is based on the AISdata,the spatiotemporal visualization of the ship collision risk is realized,the visual image after the complex abstract ship traffic flow multi-attribute information is effectively dug and fused is realized, so that the risk level of the environment of the location of the ship can be intuitively and conveniently obtained by a driver or an operator, thusself-alertness is improved, the reasonable control measures are taken, and the safe operation of the ship is ensured.

Description

technical field [0001] The invention belongs to the technical field of transportation safety and relates to a ship collision risk analysis method, in particular to a ship collision risk analysis method based on AIS data. Background technique [0002] The transportation system is the foundation of social and economic development, a symbol of human civilization, and an important tool for the country to allocate resources and macro-control. It promotes the social division of labor, the development of large industries and the formation of economies of scale, and expands international economic and trade cooperation and human resources. It is of great significance to ensure the sustained, healthy and rapid development of the national economy, improve people's lives, and promote land development and national defense modernization. Waterway transportation is an important part of transportation. With the continuous and rapid development of my country's economy, the volume of water fr...

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Problems solved by technology

Although there have been many studies on ship collision risk based on ship AIS data at home and abroad, most of them are based on historical data, and lack of research methods combined with real-time data and forecast data, so the related technologies in this field are relatively weak. It is necessary to carry out such research

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