System for displaying and controlling track of cast net of purse seine

Abstract

The present invention relates to a system for displaying and controlling a track of cast net of purse seine. The system comprises: a cast net wake path prediction unit for predicting a cast net wake path in order to catch a shoal of fish, on the basis of data received from measurement equipment provided on a purse seiner, through a transmission and reception unit; and an integrated display screengeneration unit for generating integrated display screen information including a cast net wake path predicted by the cast net wake path prediction unit.

Description

technical field [0001] The invention relates to a net throwing track display and control system of a purse seine, which allows real-time calculation and provides the net throwing start position and the net throwing track with the greatest possibility of success in consideration of the moving direction and speed of fish schools and fishery information. The operation is carried out, while the control allows the ship to automatically move along the trajectory and cast the net. Background technique [0002] The largest seine fishery is the use of tuna seine nets. In the Pacific Ocean, the Indian Ocean and the Atlantic Ocean, tuna fish are used as targets. Small and medium-scale seine fisheries are used in coastal countries around the world to target surface fish such as mackerel. Classes are made for objects. In 2013, the world's tuna seine fishery produced 4.79 million tons (270,000 tons in South Korea), with a total output value of about 7 billion US dollars. [0003] In the...

AI Technical Summary

Problems solved by technology

It is generally believed that even if a school of tuna floating and swimming is found, the success rate of the operation is less than 30%.

[0005] However, since the net throwing position, the net throwing speed and position of the purse seine ship, etc. depend on the empirical knowledge of the captain of the purse seine ship, the operation success rate of each purse seine ship varies greatly. Captains, also have boundaries in terms of improving operational success due to reliance on intuition

[0006] In addition, as fishery information required in the operation process, fish information is obtained from sonar, and fishery information such as ship navigation information, position information based on electronic charts, direction and strength of currents and winds are obtained from different instruments, This information is displayed on different monitors, so it is not easy to collect and analyze all of this information and find a suitable position to cast nets.

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