一、地鐵屏蔽門系統的組成有哪些

地鐵屏蔽門系(xi)統(tong)由(you)(you)機(ji)(ji)械和電氣(qi)兩部(bu)(bu)(bu)分(fen)(fen)(fen)構(gou)(gou)(gou)成(cheng)，機(ji)(ji)械部(bu)(bu)(bu)分(fen)(fen)(fen)包括門(men)(men)(men)(men)(men)體(ti)結構(gou)(gou)(gou)和門(men)(men)(men)(men)(men)機(ji)(ji)系(xi)統(tong)，電氣(qi)部(bu)(bu)(bu)分(fen)(fen)(fen)包括電源系(xi)統(tong)和控(kong)制(zhi)系(xi)統(tong)。主(zhu)要構(gou)(gou)(gou)成(cheng)部(bu)(bu)(bu)分(fen)(fen)(fen)有(you)：門(men)(men)(men)(men)(men)體(ti)結構(gou)(gou)(gou)、門(men)(men)(men)(men)(men)機(ji)(ji)系(xi)統(tong)、門(men)(men)(men)(men)(men)機(ji)(ji)控(kong)制(zhi)器(qi)（DCU）、車(che)站級控(kong)制(zhi)、監(jian)視系(xi)統(tong)。屏蔽門(men)(men)(men)(men)(men)門(men)(men)(men)(men)(men)體(ti)結構(gou)(gou)(gou)通常由(you)(you)滑(hua)動門(men)(men)(men)(men)(men)、固(gu)定門(men)(men)(men)(men)(men)、應急門(men)(men)(men)(men)(men)、端頭門(men)(men)(men)(men)(men)及門(men)(men)(men)(men)(men)機(ji)(ji)頂箱、踏步(bu)板、上下部(bu)(bu)(bu)連接結構(gou)(gou)(gou)等構(gou)(gou)(gou)成(cheng)。

其(qi)中門機(ji)(ji)是由驅動(dong)機(ji)(ji)構(gou)、傳動(dong)機(ji)(ji)構(gou)、懸(xuan)掛機(ji)(ji)構(gou)、鎖定解鎖機(ji)(ji)構(gou)組(zu)成。電機(ji)(ji)在門機(ji)(ji)控制(zhi)(zhi)(zhi)器(qi)（DcU）的控制(zhi)(zhi)(zhi)下，通過螺(luo)桿或皮(pi)帶傳動(dong)來實現滑動(dong)門的開關運動(dong)。屏(ping)蔽門控制(zhi)(zhi)(zhi)系統設備由中央控制(zhi)(zhi)(zhi)盤(pan)（PSC）、遠程監(jian)視設備（PSA）、就地(di)控制(zhi)(zhi)(zhi)盤(pan)（PSL）、緊(jin)急控制(zhi)(zhi)(zhi)盤(pan)（IBP）、門機(ji)(ji)控制(zhi)(zhi)(zhi)器(qi)（DCU）、就地(di)控制(zhi)(zhi)(zhi)盒（LCB）組(zu)成。

二、地鐵屏蔽門主要有哪些作用

1、系統控制功能

系統級控制是在地鐵屏蔽門正常運行模式下由信號系統（SIG）直接對屏蔽門進行控制的方式。在系統級控制方式下，列車到站并停在允許的誤差范圍內時（如：±300mm），信號系統向屏蔽門每側單元控制器（PEDC）發送“長/短車開/關門”命令，單元控制器（PEDC）通過門控單元（DCU）對每扇滑動門進行實時控制，實現屏蔽門的系統級控制操作。單元控制器（PEDC）與門控單元（DCU）通過可靠的硬線連接。站臺級控制是由列車駕駛員或站務人員在站臺的就地控制盤（PSL）上對屏蔽門進行“開/關門”的控制方式。當系統級控制不能正常實現時，列車駕駛員或站務人員可在就地控制盤（PSL）上通過“專用鑰匙”及”開/關門按鈕”對屏蔽門進行“開/關門”操作，實現屏蔽門的站(zhan)臺(tai)級(ji)控(kong)制操作(zuo)。

2、監視功能

主(zhu)監(jian)(jian)視系統(tong)(tong)(tong)（MMS）是中央接(jie)口盤（PSC）核(he)心(xin)部分(fen)，完(wan)成(cheng)每(mei)(mei)側(ce)屏蔽(bi)門(men)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)相關信息的(de)(de)(de)集(ji)成(cheng)。包括收(shou)集(ji)PSC，PSL，IBP 以及屏蔽(bi)門(men)電源的(de)(de)(de)信息，屏蔽(bi)門(men)故(gu)障(zhang)警(jing)報(bao)儲存，屏蔽(bi)門(men)正(zheng)常系統(tong)(tong)(tong)運行記錄等。單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)控(kong)(kong)制(zhi)器(qi)(qi)（PEDC）與主(zhu)監(jian)(jian)視系統(tong)(tong)(tong)（MMS）之(zhi)(zhi)間的(de)(de)(de)監(jian)(jian)測(ce)(ce)信號通(tong)過(guo)可(ke)靠(kao)的(de)(de)(de)硬線來(lai)連(lian)接(jie)，每(mei)(mei)個(ge)(ge)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)控(kong)(kong)制(zhi)器(qi)(qi)（PEDC）將為(wei)主(zhu)監(jian)(jian)視系統(tong)(tong)(tong)（MMS）的(de)(de)(de)邏輯輸入模塊提供其操(cao)作(zuo)狀態（邏輯電平信號），由(you)(you)主(zhu)監(jian)(jian)視系統(tong)(tong)(tong)（MMS）監(jian)(jian)測(ce)(ce)屏蔽(bi)門(men)系統(tong)(tong)(tong)的(de)(de)(de)基本操(cao)作(zuo)狀態。門(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）與主(zhu)監(jian)(jian)視系統(tong)(tong)(tong)（MMS）之(zhi)(zhi)間的(de)(de)(de)監(jian)(jian)視是通(tong)過(guo)使(shi)用(yong)通(tong)訊網絡（現(xian)場(chang)總線）來(lai)實現(xian)的(de)(de)(de)。每(mei)(mei)個(ge)(ge)門(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）在網絡上都有一個(ge)(ge)唯(wei)一的(de)(de)(de)地址(zhi)，工程上，為(wei)了便于管(guan)理和標識(shi)，每(mei)(mei)個(ge)(ge)門(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）的(de)(de)(de)地址(zhi)可(ke)取決于門(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）在站臺上的(de)(de)(de)位置（上/下行線、門(men)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)號）。由(you)(you)主(zhu)監(jian)(jian)視系統(tong)(tong)(tong)（MMS）監(jian)(jian)測(ce)(ce)門(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）的(de)(de)(de)相關狀態信息。