Design Of Integrated Display And Control Software Based On Linux

Single beam echo sounder plays a very important role in the national defense construction and civil market.It is widely used in various hydrological monitoring industry.After a series of technical analysis,this paper introduces the design of a single beam echo sounder based on ARM processor and Linux operating system.First introduced the working principle of the sounder and the main source of error,and effective methods to solve these errors according to the basic error sources,including the analysis of position correction and error correction.We also analyzed the results of simulation and draw conclusions about how to settle errors cased in actual project.After that,the paper illuminates prosess to make the system of sounder which can display depth and control devices come true,including the design of the development environment,the design of the whole structure and the flow chart.The paper introduces the installation of cross compiler chain in details and how to make and compile the U-boot files according to processing unit of S3C6410,and cut the Linux kernel according to the actual demand of the project.Transplants the zImage and yaffs2 root file system to the target board and succeeds in creating the root directory in accordance with the requirements of the project.At last,the paper illuminates developing idea of the integrated display and control software in details and the structure of the whole display and control software.According to the technology used in the process of developing software,the paper explains how to use the technology to adapt our design.The paper also describes the way of communication between the Linux system serial threads.Finally,the design of the interface of the single beam echo sounder is completed with the design specification,which can display real-time depth.