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Navigation channel safety early warning method and system, computer equipment and storage medium

A safety early warning system and safety early warning technology, applied in the field of ship safety, can solve problems such as grounding, ship collision, encountering pirate attacks, etc., and achieve the effect of ensuring safety and high warning accuracy

Pending Publication Date: 2021-04-09
迈润智能科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited viewing angle provided by the cockpit and the obstruction of the hull structure within the viewing range, the blind area of ​​the artificial lookout is quite large and unavoidable, which easily increases the risk of ships colliding, running aground, or encountering pirate attacks
Another common early warning method is to install cameras around the ship. The watchman checks the situation around the ship through the display screen. Increased risk due to employee distraction

Method used

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  • Navigation channel safety early warning method and system, computer equipment and storage medium
  • Navigation channel safety early warning method and system, computer equipment and storage medium
  • Navigation channel safety early warning method and system, computer equipment and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0070] An embodiment of the present invention, such as figure 1 As shown, the present invention provides a kind of channel safety early warning method, comprises steps:

[0071] S1. Obtain images collected by several cameras installed around the ship.

[0072] Specifically, in this solution, the cameras are fisheye cameras, and the shooting range of each fisheye camera is between 90°-180°. There is some overlapping area between them.

[0073] S2. Stitching the images collected by the cameras to obtain 360° real-time images around the ship.

[0074] S3. Establishing a bowl-shaped projection model.

[0075] S4. Map the real-time image into the bowl-shaped projection model.

[0076] S5. Acquiring the sailing information of the ship, and simulating the sailing path of the ship in the bowl projection model.

[0077] S6. When an obstacle appears on the navigation path, an early warning is given.

[0078] By setting several cameras around the ship and obtaining the images colle...

Embodiment 2

[0080] In one embodiment of the present invention, on the basis of Embodiment 1, the images collected by the camera are spliced ​​to obtain a 360° real-time image around the ship, specifically including:

[0081] S21. Acquire first feature positions of edge regions of images captured by the camera in sequence.

[0082] S22. Obtain an overlapping area of ​​images captured by two adjacent cameras through the first feature position.

[0083] S23. Compare the second characteristic positions of the overlapping regions.

[0084] S24. If the second feature positions are the same, successively splice the images collected by two adjacent cameras to obtain a 360° real-time image around the ship.

[0085] S25. If the second characteristic positions are different, mark the two cameras corresponding to the second characteristic positions.

[0086] Specifically, when performing image stitching, in order to divide the stitching area, a first feature position can be set in the edge area of ...

Embodiment 3

[0091] In one embodiment of the present invention, on the basis of embodiment 1 or 2, the real-time image is mapped into the bowl-shaped projection model, specifically including:

[0092] S41. Calibrate several reference points in the real-time image.

[0093] S42. Obtain the position coordinates of the reference point through the shipborne radar.

[0094] S43. Acquire a first mapping relationship between the real-time image and the external environment according to the position coordinates.

[0095] S44. Obtain a third mapping relationship between the real-time image and the bowl projection model according to the second mapping relationship between the bowl projection model and the external environment.

[0096] S45. Map the real-time image into the bowl-shaped projection model according to the third mapping relationship.

[0097] When mapping the real-time image to the bowl-shaped projection model, it is necessary to determine the mapping relationship. You can first calibr...

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Abstract

The invention provides a navigation channel safety early warning method and system, computer equipment and a storage medium. The method comprises the steps of acquiring images collected by a plurality of cameras installed around a ship, splicing the images acquired by the cameras to obtain a 360-degree real-time image around the ship, establishing a bowl-shaped projection model, mapping the real-time image into the bowl-shaped projection model, acquiring navigation information of a ship, and simulating a navigation path of the ship in the bowl-shaped projection model, and when an obstacle appears on the navigation path, carrying out early warning. According to the scheme, manual participation is not needed, the early warning precision is higher, and the sailing safety of ships can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of navigation ship safety, in particular to a waterway safety early warning method, system, computer equipment and storage medium. Background technique [0002] When the ship is sailing, artificial lookout is the most commonly used early warning method for sailing ships. The lookout is located in the cockpit and looks out to the front of the ship and the left and right wings. However, due to the limited viewing angle provided by the cockpit and the obstruction of hull structures within the field of vision, the blind area of ​​vision for artificial lookouts is quite large and unavoidable, which easily increases the risk of ships colliding, running aground, or encountering pirate attacks. Another common early warning method is to install cameras around the ship. The watchman checks the situation around the ship through the display screen. Increased risk due to employee distraction. Therefore, there is a need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G3/02G06T3/00G06T3/40
CPCG08G3/02G06T3/4038G06T3/08
Inventor 张兵华赵科
Owner 迈润智能科技(上海)有限公司