Echo signal generation method of fish detector and device thereof

Abstract

The invention discloses an echo signal generation method of a fish detector and a device thereof. In the method, an upper computer is connected with a microcontroller by a universal bus interface; the microcontroller is respectively connected with a direct digital frequency synthesizer and a Schmidt shaping module, the Schmidt shaping module is connected with a transceiver conversion module by a signal filter module and an envelope detection module, the direct digital frequency synthesizer is connected with the transceiver conversion module by a digital-to-analog conversion module and a filter and power amplification module, and the transceiver conversion module is connected with the fish detector by a transducer interface of the fish detector. The echo signal generation method and the device thereof can realize dynamic simulation of fish school signal of the fish detector, and have the advantages of variable echo signals, wide simulation range and high accuracy.

Description

technical field [0001] The invention relates to a method and a device for generating a signal of a fish finder, in particular to a method and a device for generating an echo signal for use training and maintenance of a fish finder. Background technique [0002] The fish finder is an important equipment for the fishing operation of the pelagic fishing vessel. For the use training and maintenance departments, how to improve the use training effect and maintenance quality of the fish finder is of great significance to the normal performance of the equipment. [0003] However, the current fishing operation training still uses transducers to train with real fish schools in the actual pool, resulting in the inability to dynamically generate real-time echo signals of various fish schools during training, resulting in the singleness of training quality and Increased training costs. [0004] Injuries to training and maintenance personnel caused by ultrasonic waves emitted by fish fi...

AI Technical Summary

Problems solved by technology

[0005] The present invention is aimed at the deficiency of above-mentioned traditional training method, has overcome adopting transducer to carry out training with real school of fish in actual pool, can't train on land, and the ultrasonic wave that fish finder transducer sends is training and The problem of injury caused by maintenance personnel provides a method that can simulate the generation of echo signals of fish finders in a dynamic, efficient and real-time manner

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