Electric Field Data Storage And Ethernet Communication Design Based On Embedded System

With the rapid development of IT technology, embedded system and Internet have been ubiquitous that deeply impact our work and life, the combination between them is a necessity. The embedded system accessing to Internet is becoming a hotspot in the IT research and application domain.As a dedicated computer system based on application and computer technology, embedded system mainly consists of bottom hardware devices, real-time operating system and application program which completes controlling,monitoring and management to other devices. Atmospheric electric field instrument is used to measure the atmospheric electric field,which can be used as warning system in the place vulnerable to static electricity and lightning hazard and as warning device to monitor the air and space electric environment.According to the communication requirements of electric field instrument, this topic develops and studies on design of communication platform in hardware and software,solves information exchange between the device and client, realizes the function of high-speed, large capacity storage.First,the background of this project and the global research of embedded system are introduced, based on which the thesis analyzes the functional requirements of this project and brings forward the research task and method. Then,the thesis detailedly discusses the ARM minimum system hardware design and implementation, the transplant process ofμC/OS-Ⅱoperating system, ARM bottom hardware driver design, embedded TCP/IP protocol stack design, embedded SD card file system design, and socket communication design. In addition, communication process between device and client can verify the feasibility and performance of device. Finally,a prospection about the development of the device in integration is given.Embedded system scheme designed by the thesis has good expandability.Consequently it can be modified to achieve other expected objectives.The design has an advantage of high-speed, low-lost and stability which has important reference value for future practical engineer application in remote transmission and data acquisition field...