Design And Implementation Of Color Image Sonar Display System Based On Mobile Terminal

China has abundant water resources and numerous lakes and rivers.Due to the need of underwater rescue detection and dam safety detection,the development of sonar imaging technology has been highly valued.With the rapid development of communication equipment,many traditional industries have begun to combine with mobile devices,and a variety of "mobile +"smart devices have been introduced and put into use.Based on the concept of "mobile+" portable and lightweight,combined with the helmet-type colorful image sonar system independently developed by the laboratory,This thesis designs a colorful image sonar display system based on mobile terminal,establishes a precedent of the combination between mobile terminal equipment and sonar equipment,and expands the display platform of civil sonar detection equipment.The mobile image-based colorful image sonar display system mainly includes two parts:a hardware circuit and an application program.The hardware circuit realizes the function of receiving the echo signal received by the transducer and transmitting it to the mobile device,and the application mainly implements the local file display and real-time display capabilities.In this thesis,the author is responsible for the specific work as follows:1.Analyze the status quo and development of sonar equipment at home and abroad.Combined with the rapid development of intelligent manufacturing and communication technology,considering the actual needs of users,focusing on the display part of sonar equipment,the purpose and significance of this thesis are clarified,and the main contents of each chapter are arranged.2.Introduce a helmet-type colorful image sonar display system and an improved display system.After analyzing the limitations of the actual use requirements,the detailed design of the display system proposed in this thesis is carried out.3.Complete the hardware design and implementation of the mobile colorful image sonar display system.The hardware circuit principle is introduced.The design and implementation of the main functions of data receiving and transmitting based on OTG technology,the design and welding of the circuit board and the debugging,and the programming of the board software program are completed.4.Complete the design and implementation of the mobile colorful image sonar display system application.It mainly introduces the database and server to implement user registration and login functions.The program writing process of communication between the application and the hardware device is completed,and the differential algorithm is used to interpolate the display result to improve the image quality,realize the display of the local data file,and process and display the data transmitted by the hardware in real time into a record file features.5.Complete the test of the mobile colorful image sonar display system.After completing the design of each module,the receiving and transmitting functions of the hardware circuit are verified by the serial port debugging assistant;the multi-user test is performed on the registration and registration function of the application;the effect before and after the differential algorithm is compared;the local display function is performed.Tests,all meet the test requirements.The system was tested in the field and basically achieved the expected goals of this thesis.6.Summarize the shortcomings of the mobile-based colorful image sonar display system designed in this thesis and the aspects that need to be improved and improved,and put forward the prospects for the follow-up work.