The Design And Implementation Of Embedded Data Collector Module Based On Linux Operating System

The embedded system plays an important role in modern industrials.The surveillance and control can not work without data collecting.But traditional data collecting module based on single chip system can not finish or it is very difficult to finish the operating system embedding,the management of files, different kiinds interface connection, mutual unite with Internet,big size memory enlargement and so on. In the past days,it is limited in many field. In order to solve these problems,this paper designed the embedded data collecting module based on linux OS.Firstly this paper introduced the data collecting, the managing system with the present condition and possible developing trend,analysised the advantages of embedded linux OS,pointed out the possible problems of current data collecting module and the purpose and significance of the research.Secondely, aiming at this system requesting index sign.designed the total module and signal flow of the system.Discussed the principle and performance of embedded 32-bit ARM micro processor.Explained the technical points of low power , reliability,testability sensor test circuit and so on in the hardware system design.Putting out the component principle,design and implementation of the signal AD conversion module,memory module and network chip module of the system.Thirdly,introduced the linux OS kernel platform with developing environment and tools.Explained the embedded system software structure and FPGA digital singnal processing technique of the software design.Analysised reduction of the embedded linux OS,transplant of the kernel and U-boot.Put out implementation of the main program in ARM,FPGA function block and FPGA function module.Fourthely,giving out the testing of the basic performance of the transmission based on SPI and the embedded data collecting channel plate,analysised the testing result.After debugging and testing the prototype,basicly realizing the compiling of the operating system and programming it to platform,and finished the programme of the application software in the platform,The system can work stably and attained the anticipated object.