Research And Design Of Portable Sonar Fish Detection System

Fishing is one of the leisure activities of people in their free time.The portable fish detection system can be applied to different scenes such as deep water and shallow water,and has great development value.The Fish Detection is an acoustic detection aid for the assessment of underwater biological resources,detection of underwater conditions and deep positioning of fish.Based on the portable fish exploration system project this paper carefully studies the working principle of the fish detection system,gives the overall scheme design of the system,and completes the development and debugging of hardware and software.The development of-the hardware circuit of the water surface detecting device includes a power supply circuit,a main control circuit,a wireless communication circuit,and the like.An ultrasonic detection circuit is built according to the design requirements,and a stable echo signal is obtained by adjusting the circuit parameters to obtain fish detection information.The application software design of the detection device includes ultrasonic emission control,collection and control of various information,waveform feature data processing,and wireless communication protocol design.The detected device can be sent to the shore-based device in real time through wireless communication after being processed by the collected underwater data.The shore-based display device adopts the Samsung Exynos 4412 as the platform processor.After analyzing the interactive interface function of the fish detection system,the overall structure of the application software is designed.The application is based on the embedded Linux operating system and selects Qt graphics.Interface development tools to implement application functionality.The main functions of the program include displaying the detection information,displaying the water depth data after processing,drawing the fish to detect the real-time curve,and changing the depth of the fish.The depth of the fish is simulated by the panning animation;the other interface functions include the detection simulation and sensitivity.Adjustment,fish alarm,etc.After the design of the fish detection system was completed,the overall performance experiment was carried out.The analysis test results verified that the fish detection system can work normally and stably,and can accurately and timely monitor the fish information;the shore display part works normally and can run stably for a long time.Experiments show that the detection system and shore-based display equipment fully meet the design function requirements,achieve the design goal,and have good practical and market value.