A Calculation Method of Water Depth Utilization Ratio Based on AIS

Abstract

The invention discloses an AIS-based method for calculating water depth utilization of coastal waterways, which includes four parts: AIS data processing, water depth utilization quantification calculation sample determination, target area model construction, and water depth utilization quantification model. This method uses the ratio of the ship's draft in the AIS message and the water depth of the target area chart as the most basic quantitative indicator of the water depth utilization of the channel. Compared with the currently existing indicators, this indicator fully considers the water depth status of the target area and the draft characteristics of the water depth utilization subject, and can more reasonably and intuitively represent the water depth utilization status of the coastal channel, and provide corresponding guidance for port channel dredging.

Description

technical field [0001] The invention relates to the field of dredging and maintenance of near-shore waterways, and more specifically, relates to an AIS-based calculation method for water depth utilization ratio of near-shore waterways. Background technique [0002] In order to ensure the safety of ships entering and leaving ports, it is usually necessary to carry out regular or irregular maintenance on coastal waterways. Regardless of whether the water depth dynamic maintenance method or the water depth static maintenance method is adopted, factors such as the silting speed, design water depth and design navigable water depth are fully considered when determining the dredging cycle. Here, when determining the dredging period, the factor of actual water depth utilization can be introduced to further improve the economic benefit ratio. However, there are currently few methods for estimating water depth utilization in coastal waterway areas, and there are also few indicators f...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide an AIS-based calculation method for water depth utilization rate of coastal waterways, and solve the problem that the water depth of the sea area and the draft characteristics of the main body of water depth utilization are not considered in the previous quantitative indicators

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