Embedded Internet Access Technology Research And Application In The Monitoring And Control Network

With the Internet and Embedded system being widely used, various kinds of technology such as computer, network,control and field bus are growing up quickly. It makes measure and control network system tending towards more convenience in data sharing,more rapid in information transmition and more friendly in interoperation, and makes control technology become more networking, distributing and opening.Field bus is the core of the modern measure and control system.when field bus develops from industry field device up to top and computer networking sinks to bottom device from internet, the network measure and control system based on embedded internet technology becomes true.Firstly, this paper makes a detailed study on the Field control bus system (PCS),including the characters of PCS by comparing FCS and DCS, model networking of PCS and several popular Field bus, then put forward a question for discussion combining Embeded internet technology and Field bus and measure and control networking model based Embeded internet technology is constructed.Secondly, it studies Embeded system including the core of hardware梕mbeded microprocessor and real time operation system.Thirdly,the method of realizing Embeded internet is discussed for emphasis,and difficulty of ehernet application in industry measure & control system is analysed.An instance of measure & control networking system based embedded IP is given. Finally, the author designed a networked remote video surveillance system based embedded web server, μ C/OS-II is sacled and ported into the embedded microprocessor AT89C51.Based on the μ C/OS-II RTOS, TCP/IP protocol suite and application program is designed in detail.The system works well that improves that the embedded internet technology will be widely used in modern measure & control networking system and has extend values.