Research And Application Of Embedded System In Remote Supervisory And Control Equipment

The embedded system is a special-purpose computer system that focuses on the application. It adapts to the application system which is strict in cost, performance, stability, size, power consumption. But the embedded system was not strong in the first time, only offered some simple management functions. With development of information technology and semiconductor craft, 32-bit microprocessor become popular in the market gradually. System procedure are more and more complicate, thus the reliability and stability of system is difficult to be guaranteed with the traditional approach. It is the effective way of solving this problem to use the embedded operating system as the software platform. With transplantation of internet and embedded operating system , remote supervisory and control equipment inserted embedded system not only has intelligence ,but also has real-time.Design of embedded system include hardware and software . The 32bit S3C44B0X base on ARM7TDMI core is chosen as the main control chip in design because of price, performance, power consumption, it has good stability and reliability. Software include two parts: the first is the choice of embedded operating system. To make the system more safe and reliable, The free and source-code-open real time operation system of μC/OS-II is chosen as the software platform and is successfully transplanted onto the hardware platform. The second is the embedded Internet technology realization, LwIP is chosen and successfully transplanted onto the embedded system. Otherwise, coherent hardware and driver programmers(network card, serial communication port, LED and so on) are designed. At last, the embedded system platform in the paper has many merits, it is important foundation to further development.