基于Lonworks網絡的遠程自動抄表系統

電氣自動化論文編號:ZD466  論文字數:19566,頁數:43，

目   錄
 摘要………………………………………………………………I
 Abstract………………………………………………………………II
第1章 Lonworks網絡技術概述 …………………………………………1
 1.1 Lonworks網絡的組成 ………………………………………………1
    1.1.1 Lonworks網絡硬件……………………………………………1
 1.1.2 Lonworks網絡軟件……………………………………………4
 1.2 Lonworks技術的特點 …………………………………………………5
     1.3 Lonworks網絡的應用  ………………………………………6
 1.4 幾種典型的Lonworks產品 ……………………………………………7
第2章 MCS—51在Lonworks網絡中的應用 …………………………… 8 
 2.1 MCS—51的功能簡介 …………………………………………………8
 2.2 MCS—51單片機的工作原理……………………………………………9
 2.2.1 MCS—51單片機的存儲器結構 …………………………………9
   2.2.2 RS—232C標準接口 …………………………………………10
第3章 系統總體方案設計 ………………………………………………11
 3.1 自動抄表系統簡介…………………………………………………11
 3.1.1 專線方式  …………………………………………………12
 3.1.2 電力線載波方式 ……………………………………………12
 3.2 基于Lonworks技術的自動抄表系統的工作原理…………………13
第4章 系統硬件設計……………………………………………………15
 4.1 Lonworks智能節點硬件設計(采集器) ………………………15
     4.1.1 單片機MCS—51與Lonworks主控制模塊的接口設計 …16
 4.2 中繼器  …………………………………………………………21
 4.3 網絡適配器………………………………………………………21
 4.1 上位計算機………………………………………………………22
第5章 系統軟件設計……………………………………………………23
 5.1 Neuron C應用程序  ………………………………………………23
 5.2 并行通信接口數據傳輸的軟件設計…………………………………25
 5.3 MCS—51單片機的處理程序 ………………………………………28
   5.3.1 鍵盤接口電路軟件設計………………………………………28
   5.3.2 LCD顯示器接口電路軟件設計 ……………………………… 31
   5.3.3 單片機與打印機連接的軟件設計 …………………………32
 5.4 上位機動態監控系統………………………………………………34
結束語……………………………………………………………36
 參考文獻……………………………………………………………37
 致謝………………………………………………………………38
 附錄 系統硬件原理圖………………………………………………39

摘  要： 在當今社會，隨著人口的不斷增長和城市規模的不斷擴大，人們對水、電、煤氣的需求量正在迅速增長，隨之所帶來的三表統計收費的工作量大大增加，可是目前我國普遍采用水表、電表、煤氣三表人工入戶抄表收費方式，這樣就給用戶及抄表人員都帶來很多麻煩。
 采用自動抄表系統來取代人工入戶抄表，即可提高抄表的準確性和及時性，達到降低勞動強度，減員增效的目的，又可以方便的實現三表數據的統計分析，給城市的供水、供電、供煤氣等基礎設施建設提供科學合理的依據。三表遠程自動化抄表集成系統能自動實現水、電、煤氣三表的自動化管理，徹底改變了傳統的入戶驗表收費方式，自動完成“三表”數據的采集、累計統計和費用計算及收取，全面解決了抄表難的社會化問題，提高了工作效率，具有管理科學、效率高、誤差小等諸多優點，并增加了用戶計費的透明度，避免了人力資源的浪費，全面提高了現代物業管理的規范化、科學化，為物業管理的現代化提出了一種切實可行的方案。
 本次設計采用現場總線Lonworks技術，以智能化多處理芯片——Neuron芯片為核心設計的三表監控系統，抄表計量準確，數據傳輸可靠，查詢、統計、收費功能完備，安裝調試方便，對分散目標的集中管理和控制都十分有效。
關鍵詞： Lonworks節點；神經元(Neuron)芯片；自動抄表系統.

Remote Automatically metering system Based on Lonworks

Abstract: Nowadays, with the growing population and the expanding of the cities the consuming of water, electricity and gas is increased rapidly. It is more complicated and difficult for metering. This is because of the widely used of water, electricity and gas.
    With the automatically metering technology, we can save man power and achieve the goal of less labor and more efficiency. The automatically metering is not only accurate and prompt, but also less intensive than the manual ones. Even more, it is convenient for datum statistics and analysis. It is a scientific and reasonable basis for constructing the fundamental installations which provide the water, electricity, and gas in the cities. The remote automatically metering integrated system can make metering work for water, electricity and gas automatically. This changes the traditional way of collecting fees overall. It completes the process of collecting and accumulating datum, calculating and collecting fees automatically. It solves the social problem of metering thoroughly and makes the work be more efficiently. There are many advantages of it, such as scientifically administration, high efficient, little errors etc. It gives more transparent messages to consumers, avoids the extravagant resources and labor expenses, enhances the level of material administration. It is a standard and scientific way of the material administration and a practicable way of  the modern material administration.
 This paper deals with the intelligent multi-chip-----the electric control system which designed by Neuron chip and MCS---51with the Lonworks Technology. This kind of metering is accurate and reliable in datum conveyance. Its function of collecting fees is perfect. It is convenience for installation and experimentation and very efficient for administrating and controlling the dispersive consumers.
Keyword: Lonworks; Neuron Chip; automatically metering system.