| With the development of computer technology, control technology and networktechnology, embedded system and network control system are used in more and more fields.Current control system is undergoing an unprecedented transformation, remote monitoringand intelligent control has become an important development direction for control system.Using embedded network control system, user can remote monitor and control the fielddevices which are connected into network, in any places with internet access. Embeddednetwork control system is different from the past C/S and B/S network monitoring technology,it requires compact, low system cost, and is easy to install and maintain. Embedded systemcan custom hardware and software based on the application, and it is particularly suitable forembedded network control system requirements. The main research contens are as follows:1) This paper presents an embedded network control system based on ARM&Linux,which choose the embedded Boa server as the network server for the embedded networkcontrol system. First, study the control algorithm of the network control system. Second,describe about the system structure in detail and introduction working principle of embeddednetwork control system. Third, research on the implementation of system depthly.2) The embedded network control system is divided into three parts: hardware design ofembedded network control system; set up software platform of embedded network controlsystem; Web server implementation and application program development of embeddednetwork control system. System selects mainstream S3C2440of ARM microprocessor as asystem host controller and in accordance with the need to give a specific hardware circuitdesign, including: circuit design of flash memory interface, circuit design of the networkinterface, circuit design of temperature sensor interface, circuit design of serialcommunication interface.3) Because embedded Linux can support the ARM technology effectively, and has thecharacteristic of the reducible kernel, low cost, the open resource code, the strong network function. Through reducing, configuring and compiling embedded Linux, embedded Linuxsuccessfully transplanted to S3C2440, and then complete device driver development,embedded network control system server Boa construction and application programdevelopment of system.The embedded network control system integrate the control network and the informationnetwork which realizes remote monitoring and intelligent control. The system which has highstability, better real-time, cost-effective, has broad application prospects, suitable for industrialcontrol, smart grid, intelligent transportation, and many other control areas. |
