Ship real-time tracking monitoring method

Abstract

The invention relates to a ship real-time tracking monitoring method. The method comprises the steps that a ship automatic identification unit collects an AIS message and related information transmitted by a tracked ship and stores the collected information in an AIS database of a ship tracking system; any one ship is selected to be monitored, the latest ship position and speed information recorded in the database acts as an initial monitoring value, and coordinate position transformation, speed transformation and focal length conversion are performed on AIS information of a target ship required to be tracked according to the initial monitoring value so that related transformation values are obtained; navigation coordinates and ship speed of the ship of the next moment are predicted according to the transformation values, and control threshold examination is performed on the prediction values so that a tracking holder camera is confirmed; and control parameters of the tracking holder camera are corrected. The ship real-time tracking monitoring method has advantages being low in signal processing complexity and high in accuracy so that working efficiency of on-duty personnel can be greatly enhanced.

Description

technical field [0001] The invention relates to a tracking and monitoring method, in particular to a ship real-time tracking and monitoring method using a pan-tilt camera using AIS information. Background technique [0002] In order to ensure the safe passage of ships in the waterway, it is necessary to track and monitor the ships in the water area to actively avoid safety accidents. At present, the method of manually controlling the camera pan / tilt can generally be used to track the ship to be detected. This method requires the attention of the on-duty personnel, especially the ability to respond to abnormal situations. caused by inattention. In addition, video image motion detection and tracking methods can be used. This method will be affected by various scene lights and weather, and the processing algorithm complexity after image acquisition is high, and the processing delay is large. It is difficult to meet the requirements of real-time tracking control. In addition t...

AI Technical Summary

Problems solved by technology

At present, the method of manually controlling the camera pan / tilt can generally be used to track the ship to be detected. This method requires the attention of the on-duty personnel, especially the ability to respond to abnormal situations. caused by inattention

In addition, the video image motion detection and tracking method can be used. This method will be affected by various scene lights and weather, and the processing algorithm after image acquisition is complex and has a large processing delay. It is difficult to meet the requirements of real-time tracking control.

In addition to the above two methods, the video tracking method assisted by AIS information can also be used, but there are some problems in this method. The wireless transmission of AIS messages may be lost, and the time interval for sending AIS messages is too long, resulting in continuous video monitoring of ships. Accurate and real-time acquisition of ship video images

In order to avoid the blind spot of video monitoring caused by the lack of AIS information and delay, the present invention proposes a real-time tracking and monitoring method for ships

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