The present invention can be used to track an unidentified vessel's movement in the wake of an unidentified vessel and to monitor the movement of the vessel in the aquaculture water in case of an unidentified vessel entering the set sea area including the farm, And transmitting a message for informing the user to the established mobile phone so that the monitoring of the farm is completely performed. An alpha radar (100) for finding an unidentified vessel penetrating a set sea area including a set farm site; A CCTV camera (110) installed in a set sea area including the farm and capable of changing direction; An infrared camera 120 installed in an established sea area including the farm and capable of redirecting and identifying a person at night; An underwater ultrasonic sensor (130) mounted on a net installed in the aquaculture facility to sense movement of the aquaculture facility; And When the unconfirmed vessel position information provided from the alpha radar 100 is analyzed and it is determined that an unconfirmed vessel infiltrates into an established sea area including the farm or a motion detection signal is provided from the underwater ultrasonic sensor 130, The navigation unit 140 tracks the wake of the unidentified vessel and the movement of the fish in the watershed, displays it on the electronic chart through the intrusion status display unit 170, records it in the storage unit 180, A control unit 160; And a control unit.
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