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電梯控制系統(tǒng)功能及速度曲線畢業(yè)論文(文件)

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【正文】 為HSC0~HSC5六種,均為32位雙向計數器。初始化安排在PLC上電時刻,程序完成的任務有:(1)為HSC0的控制字SMB37送入16F8,其功能為:定義計數方向為增;允許更新計數方向;允許寫入新當前值;允許寫入新設定值;允許執(zhí)行HSC指令。(層高3米,正常計數范圍為0~23333,HSC0初始化設定預置值為50000是因為程序中不打算用當前值等于預置值事件,便設了一個永遠不可能達到的數字。 高速計數器HSC0初始化程序 轎廂所處樓層位置的確定高速計數器HSC0經以上初始化后,在編碼器的驅動下完成計數工作。其一,實現門廳及轎廂內樓層數字指示;其二,用于運行定向;其三,用于確定平層制動時刻。當電梯在一、二層之間下行或二、三層之間上行時,通過減法指令或加法指令將二層距一層的脈沖數減或加1500,然后送到VD20VD200中,緊接著將其和HSC0當前值比較,發(fā)出二層減速信號,同理,、四、五、六、七層減速信號。電梯本層開門的條件也可簡化為,在停車狀態(tài)下當轎廂所在層樓有廳外召喚時,電梯自動開門。開門到位后,若沒有碰到開門限位開關,或限位開關失靈,則由于開門繼電器吸合,門電機會發(fā)生堵轉,時間一長電機可能燒毀。其閉點OFF,定時器復位,T37閉點為ON,可再次進行開門控制。如鎖梯時,,執(zhí)行關門動作;而超載時,, ,不能關門運行。 關門控制及安全保護梯形圖 內呼外喚及定向信號的獲取 內指令信號處理內指令信號的處理包括信號的登記,顯示基本層(停車)消息。 外召喚信號處理廳外召喚信號同樣需要進行登記、顯示本層停車信號,此外還具有反向運行保號功能。 內呼外喚及定向信號獲取梯形圖。其閉點OFF,則定下方向,;反之,則定上方向。無論在有司機還是無司機狀態(tài),對內指令,電梯均需換速平層停車,并且直駛時只停內選層站。外召喚信號的作用主要在于順向截梯與最遠反向截梯。只有當轎廂運行到較高位,則其閉點為ON,進行最遠反向截梯。超載時,使蜂鳴器發(fā)出周期為1s的報警聲;。采用脈沖計數方法,用脈沖編碼器取代井道中原有的位置檢測裝置,實現位移控制。另外,也培養(yǎng)了自己嚴肅認真的科學態(tài)度和嚴謹求實的工作作風。 參考文獻[1] :國防工業(yè)出版社,1996:220234[2] :中國電力出版社,2004:113130[3] 常路德,:人民郵電出版社,2004:114121[4] :機械工業(yè)出版社,2000:149159[5] :廣東科技出版社,2002:439446[6] ,1997,(4):910[7] , 2000,22(2):1214[8] ::中國電力 出版社,2005:134143[9] :機械工業(yè)出版社,2004:157[10]:北京航空航天大學出版社,2003:250275[11]:156[12]肖工贈,(9):264266[13]唐勇奇,(411101),9[14]李剛,7[15]萬健如,鄧旋,林志強,[16] 楊長能,(PC),8:279287[17] 王平,.微計算機信息.1999.(2) [18] SIMATIC s7—200可編程序控制器系統(tǒng)手冊,西門子公司[19]Dietfried Kollmorgen. Remote elevator monitoringbenefits and experience to date. LIFTREPORT,1999(25)[20] Imdek and . Neural Networks and Trafic Control systems. Elevatori,1997[21]Hiroshi Kubota and Shin39。因為有了她的細心指導和耐心答疑,及時地對我設計中的不足與錯誤予以指正并加以修改,本設計才能得以順利完成。感謝你們的支持。 Daytoday management information.Lifts in operation, a large number of information needed to monitor, rough classifications : open spacing switches, close spacing switches, safety touch panels, screen protection, the Office door locks circuit, sedan chair door locks circuit。 it is easy to solve this problem more. Daytoday management of information, including annual time, maintenance costs, the use of accessories. Based on the above information in the control module for the collection and transmission system very easily, and they are switching volume control procedures are used to calculate and pare the internal variables. As long as a specific module with a simple, functional network can be used to plete the data collection and transmission site.2. PLC networking functions introductionIt has strong networking functions to one series, for example, through extension of its modules multiple network cards and smart structures, such as the interface with RS232/RS422 form. The formation of a multilayered network, the largest number up to 100 Taiwan as Taiwan networking. Using UTP, coaxial cable, optical fiber cable, and other transmission medium, a puter card adapters, modules or module with higher plane connectivity and exchange of information. At the same time can use the module level of network mobility, a flexible Zuwangfangshi for the formation of a multiTaiwan elevator control system provided technical basis.3. PLC control systemPLC control system based on the two different types of elevators : against manufacturers design control systems。 Such failures occur with abnormal Gate, interrupted by a request elevator failures, higher plane response, the failure to collect information, Al aircraft control system by a corresponding failure report, and then by the preset automatic procedures for maintenance personnel.(4) The time and frequency of operation, as the work of information regularly in fixed time (network yet) upward spaces machine transmission.(5) In almost puter, preparing Zhuchengxu and software used Zutai state simulation prominently displayed failure types and failure. Production database information to plete work, such as the breakdown for statistical, analysis, production statements, and other print work.基于PLC的電梯監(jiān)控系統(tǒng)電梯生產廠家的監(jiān)控系統(tǒng)都是自主開發(fā)的,只能用于本廠產品,并且價格昂貴。 1. 電梯監(jiān)控系統(tǒng)電梯監(jiān)控系統(tǒng)要求既能監(jiān)控電梯又能完成日常管理,從模塊功能上可分為;故障時電梯狀態(tài);每個周期的數據匯總;日常管理信息。以廳門鎖和門刀間隙調整不當為例,載荷不均勻情況下運行,會發(fā)生門刀與開門輪碰撞的可能,導致電梯緊急停車,但因為電梯的自校正功能,電梯會在幾分鐘內自動恢復正常。只要進行針對性的設置,所有需要的信息都可以采集到。日常管理信息包括年檢時間、維修費用、配件使用等。組成多層次的網絡,最多聯網臺數可達100臺之多。第一種形式的控制系統(tǒng)多采用板結構,板上設有許多七段數碼管,或組成的矩陣顯示系統(tǒng)信息,為了不影響原控制系統(tǒng)的安全性能,需要把板上顯示信息用光電元件轉換成可傳遞的變量,再根據信息所代表的內容對變量賦值,利用第二種形式進行監(jiān)控。(2)需要時編制必要的程序(有的網絡形式下不需編程),把監(jiān)控和收集的數據存放于指定的區(qū)域內供上位機和其他訪問。制作數據庫完成對工作信息、故障等作統(tǒng)計、分析、制作報表、打印等工作。(4)對于像運行時間和次數等通用工作信息,定時在固定時間(網絡閑時)向上位機傳輸。而現今對后者的開發(fā)利用非常少,資源浪費很大。同時又可以用模塊在層次上進性組網,具有靈活的組網方式,為組成多臺電梯監(jiān)控系統(tǒng)提供了技術基礎。只要加裝簡單的特定模塊,既可利用的網絡功能完成現場數據的采集和傳輸工作。而用運行時間或運行次數內出現故障的多少來衡量,則能完成對運行狀態(tài)的判別。但隨著小故障的累積終究會釀成大故障甚至事故。對電梯的監(jiān)控可以使故障一覽無余。用PLC取代繼電器控制系統(tǒng)。s use of very small, great waste of resources. Construction of the control system based on the following :(1) According to the number and location of the lift and the owners have the right to choose the form of a network conditions, and then proceed to network.(2) Required to prepare the necessary procedures (without some form of network programming), the monitoring an
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