Patent ID: 9354314
Filing Date: 2016-05-31
CPC Classification: G01S,G10K

Claim Text:
1. An underwater detection device that detects a plurality of schools of fish, including a first and second school of fish, based on an echo received from an underwater detector by transmitting and receiving an ultrasonic wave, and displays an echo image of the plurality of schools of fish, including the first and second school of fish, on a screen, comprising: an acquisition module, comprising a transmitter and controller, configured to acquire, from one or a plurality of external fish identifying devices, position information indicating positions and associated fish species information for each of the plurality of schools of fish; a determiner, comprising the controller, for determining based on the position information whether the first school of fish displayed as the echo image on the screen matches one of the positions and associated fish species information for each of the plurality of schools of fish indicated by the position information; and a display combiner, comprising a signal processor operatively coupled to the controller and the screen, for displaying one of the acquired fish species information superimposed on the echo image of the first school of fish on the screen when the determiner determines that one of the positions and associated fish species information matches the first school of fish on the screen, wherein among the plurality of schools of fish displayed on the screen, the determiner determines that one of the positions and associated fish species information matches the first school of fish based on a swimming velocity of the first school of fish, or the determiner determines that one of the positions and associated fish species information matches the second school of fish based on a swimming velocity and a movement direction of the second school of fish.