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Design of Remote Data Acquisition System Based on the Embedded Internet

Author: YangQing
Tutor: ZengZhouMo
School: Tianjin University
Course: Precision instruments and machinery
Keywords: Embedded Internet System on Chip Embedded Web Server Embedded TCP/IP LabVIEW Remote Data Acquisition System
CLC: TP274.2
Type: Master's thesis
Year: 2004
Downloads: 686
Quote: 7
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Abstract


Along with the wide application of Internet in many fields, a lot of whilom isolated equipments and systems have been joining up with it, which makes it possible that more and more information and resources can be shared. A remote data acquisition system based on the Embedded Internet technology supplies the shares with a physical means, and it has exigent demands and promising markets in the industrial control field. Therefore, more and more enterprises and individuals are taking up with the research. Aiming at the practical application in oil pipeline’s leakage detection, a remote data acquisition system based on the Embedded Internet technology is designed in this dissertation. It consists of the data acquisition network and the remote inspection software platform for PC. The network is built up with some embedded remote data acquisition terminals. Each terminal is an integrated embedded Web server with the function of data acquisition. The hardware mainly comprises six modules: signal procession module, time adjusting module, memorizer module, network control module, WDT module and power management module. The control functions of signal acquisition and data transmission in the terminal are programmed with C language, as well as the embedded TCP/IP protocol stacks which uphold data transmission on network. Under the development circumstance of LabVIEW, the inspection platform achieves management of remote terminals, interactive communication of network data, data analysis and leakage detection, etc. Additionally, both data acquisition and processing’s accuracy and network transmission’s stability and reliability are verified with some experiments, thus the whole system’s stability and reliability are demonstrated more forcefully. The outstanding work of the dissertation mainly lies in the following two aspects. Firstly, the modules’concentrative layout round a powerful system-class chip and unitive control enhance not only the modules’working harmony, but also the terminal’s universal character. Secondly, the data acquisition terminal based on the Embedded Internet technology is used to replace the primary one that is a group of an industrial PC and an equipment of data acquisition in the remote data acquisition system. Considering the system resolution, it is a significant improvement of the system’s internal structure.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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