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Embedded network devices

Author: NiuWangQiang
Tutor: ChenMing
School: Northwestern Polytechnical University
Course: Detection Technology and Automation
Keywords: Embedded network equipment Embedded Web Server Object-oriented design Point-to-Point Protocol Transmission Control Protocol Real - time operating system
CLC: TP393
Type: Master's thesis
Year: 2004
Downloads: 127
Quote: 2
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Oilfield get basic production information of great significance for guiding oil production . Oil field production information is then sent to higher authorities in the oil well station staff manually record summary . Most of the domestic oil fields far away from industrial areas , inaccessible oilfield basic production information acquisition costs . To solve this problem , the paper introduces the concept of embedded network devices , the instrument contains an embedded web server, using the well station only external means of communication - phone, log on to the server can dial in order to achieve oilfield basic production information network transmission . The paper studies the composition and realization of embedded network devices . Embedded networking equipment consists of two parts : control MicroController and network part MicroServer . The MicroController achieve instrument control and data acquisition . The MicroServer achieve network communication function . Taking into account factors such as performance and cost , the paper completed of a the MicroController the hardware design . Mainly including LCD circuits , micro- printer interface , standard keyboard interface design . The paper apply the idea of ??object-oriented design , completed MicroController software system design . An outline of the TCP / IP protocol ( Transmission Control Protocol / Internet Protocol ) , the completion of the MicroServer the software design . Software from PPP ( Point-to-Point Protocol ) negotiation instance , the the standard PPP negotiation state machine is simplified , and the completion of the PPP agreement . User-oriented requirements , streamlining of the TCP / IP protocol , the completion of the IP , ICMP ( Internet Control Message Protocol ) and TCP protocol software design . Subsequently, the HTTP protocol ( Hypertext Transfer Protocol ) is simplifies embedded network server , the completion of the oilfield production information network transmission . On the basis of the instrument function , the MicroController the software design is the introduction of real-time operating system uC/OS- Ⅱ MicroController improve the real-time nature .

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