Real-time large volume ship target drawing method based on grid aggregation in VTS system

Abstract

The invention provides a real-time large volume ship target drawing method based on grid aggregation in a VTS system. The method comprises the steps that the electronic chart display range of a current view is acquired, and screen pixel grids are established; ship targets are allocated to the screen pixel grids; the screen position of the aggregated target of the grid is calculated by using the position and the size information of the ship in each grid; and the screen grids are traversed to draw the aggregated target therein. According to the method provided by the invention, a number of ship targets displayed in a grid are aggregated into an aggregated target; the aggregated target is located at the average position calculated according to the size of the ship within the grid, so that a user can clearly grasp the ship distribution within a large geographical range at a glance; the number of ship targets the system needs to draw can be greatly reduced; and the drawing resource overhead of the system is reduced.

Description

technical field [0001] The invention relates to a real-time target rendering method, in particular to a real-time rendering method for large batches of ship targets based on grid aggregation in a VTS system. Background technique [0002] Vessel Traffic System (VTS) is an information management system used to manage ship traffic and ensure safe navigation of ships. [0003] With the increase of human commercial production activities, the number of ships navigating in major ports and waterways is increasing, and there are more and more ship targets that need to be processed in the VTS system and displayed in real time. For some large ports, the number of ships in the port in real time can reach thousands or even tens of thousands. When users use the VTS system to supervise such a large number of ship targets, they often encounter two problems: 1. So many ship targets are all drawn, which increases the overhead of the system and the smoothness of the system operation is not go...

AI Technical Summary

Problems solved by technology

When users use the VTS system to supervise such a large number of ship targets, they often encounter two problems: 1. So many ship targets are all drawn, which increases the overhead of the system and the smoothness of the system operation is not good; 2. Drawing The ships coming out are densely displayed on the screen, and it is impossible to quantitatively understand the distribution of current ship targets in the jurisdiction

However, this method assumes that the user only needs to observe a local area. When the user observes a large-scale area, the scale of the electronic chart changes, and more ships need to be displayed in the same screen size, causing the ship symbols to be crowded together, and it is difficult for the user to distinguish the crowd. ship together

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