一、地鐵屏蔽門系統的組成有哪些

地鐵屏蔽門系(xi)(xi)統(tong)(tong)(tong)由機械和(he)電氣(qi)兩部分構(gou)成，機械部分包(bao)括門(men)(men)體(ti)結構(gou)和(he)門(men)(men)機系(xi)(xi)統(tong)(tong)(tong)，電氣(qi)部分包(bao)括電源系(xi)(xi)統(tong)(tong)(tong)和(he)控制(zhi)(zhi)系(xi)(xi)統(tong)(tong)(tong)。主要構(gou)成部分有：門(men)(men)體(ti)結構(gou)、門(men)(men)機系(xi)(xi)統(tong)(tong)(tong)、門(men)(men)機控制(zhi)(zhi)器（DCU）、車站級(ji)控制(zhi)(zhi)、監(jian)視系(xi)(xi)統(tong)(tong)(tong)。屏蔽門(men)(men)門(men)(men)體(ti)結構(gou)通常由滑動門(men)(men)、固定門(men)(men)、應急門(men)(men)、端頭門(men)(men)及門(men)(men)機頂箱、踏步板、上下部連接結構(gou)等構(gou)成。

其中門(men)機(ji)是由驅動(dong)(dong)機(ji)構(gou)、傳(chuan)動(dong)(dong)機(ji)構(gou)、懸掛機(ji)構(gou)、鎖(suo)定解鎖(suo)機(ji)構(gou)組成(cheng)。電機(ji)在(zai)門(men)機(ji)控(kong)(kong)(kong)制(zhi)器（DcU）的控(kong)(kong)(kong)制(zhi)下，通過螺(luo)桿或皮帶傳(chuan)動(dong)(dong)來實(shi)現滑(hua)動(dong)(dong)門(men)的開關運動(dong)(dong)。屏(ping)蔽門(men)控(kong)(kong)(kong)制(zhi)系統(tong)設備由中央控(kong)(kong)(kong)制(zhi)盤（PSC）、遠程監(jian)視設備（PSA）、就地控(kong)(kong)(kong)制(zhi)盤（PSL）、緊急控(kong)(kong)(kong)制(zhi)盤（IBP）、門(men)機(ji)控(kong)(kong)(kong)制(zhi)器（DCU）、就地控(kong)(kong)(kong)制(zhi)盒（LCB）組成(cheng)。

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，實現屏蔽門的站臺級控制操作。

2、監視功能

主(zhu)(zhu)監(jian)(jian)(jian)視(shi)系(xi)(xi)(xi)統(tong)（MMS）是中(zhong)央接(jie)口盤（PSC）核心部分，完成(cheng)每側屏蔽(bi)門(men)(men)(men)(men)(men)單(dan)(dan)(dan)元(yuan)(yuan)相(xiang)關(guan)信(xin)(xin)息(xi)的(de)(de)(de)集(ji)成(cheng)。包(bao)括收集(ji)PSC，PSL，IBP 以(yi)及屏蔽(bi)門(men)(men)(men)(men)(men)電(dian)源的(de)(de)(de)信(xin)(xin)息(xi)，屏蔽(bi)門(men)(men)(men)(men)(men)故(gu)障警(jing)報儲存(cun)，屏蔽(bi)門(men)(men)(men)(men)(men)正常(chang)系(xi)(xi)(xi)統(tong)運行記錄等(deng)。單(dan)(dan)(dan)元(yuan)(yuan)控(kong)制(zhi)器（PEDC）與主(zhu)(zhu)監(jian)(jian)(jian)視(shi)系(xi)(xi)(xi)統(tong)（MMS）之間(jian)(jian)的(de)(de)(de)監(jian)(jian)(jian)測信(xin)(xin)號通(tong)過可(ke)靠的(de)(de)(de)硬線來連接(jie)，每個(ge)單(dan)(dan)(dan)元(yuan)(yuan)控(kong)制(zhi)器（PEDC）將為主(zhu)(zhu)監(jian)(jian)(jian)視(shi)系(xi)(xi)(xi)統(tong)（MMS）的(de)(de)(de)邏(luo)(luo)輯(ji)輸入模塊(kuai)提供其操作(zuo)狀(zhuang)態(tai)（邏(luo)(luo)輯(ji)電(dian)平信(xin)(xin)號），由主(zhu)(zhu)監(jian)(jian)(jian)視(shi)系(xi)(xi)(xi)統(tong)（MMS）監(jian)(jian)(jian)測屏蔽(bi)門(men)(men)(men)(men)(men)系(xi)(xi)(xi)統(tong)的(de)(de)(de)基本操作(zuo)狀(zhuang)態(tai)。門(men)(men)(men)(men)(men)控(kong)單(dan)(dan)(dan)元(yuan)(yuan)（DCU）與主(zhu)(zhu)監(jian)(jian)(jian)視(shi)系(xi)(xi)(xi)統(tong)（MMS）之間(jian)(jian)的(de)(de)(de)監(jian)(jian)(jian)視(shi)是通(tong)過使用通(tong)訊網絡（現場總線）來實現的(de)(de)(de)。每個(ge)門(men)(men)(men)(men)(men)控(kong)單(dan)(dan)(dan)元(yuan)(yuan)（DCU）在網絡上都有一個(ge)唯一的(de)(de)(de)地(di)址，工(gong)程上，為了便(bian)于管理和(he)標識，每個(ge)門(men)(men)(men)(men)(men)控(kong)單(dan)(dan)(dan)元(yuan)(yuan)（DCU）的(de)(de)(de)地(di)址可(ke)取決于門(men)(men)(men)(men)(men)控(kong)單(dan)(dan)(dan)元(yuan)(yuan)（DCU）在站臺(tai)上的(de)(de)(de)位置(zhi)（上/下行線、門(men)(men)(men)(men)(men)單(dan)(dan)(dan)元(yuan)(yuan)號）。由主(zhu)(zhu)監(jian)(jian)(jian)視(shi)系(xi)(xi)(xi)統(tong)（MMS）監(jian)(jian)(jian)測門(men)(men)(men)(men)(men)控(kong)單(dan)(dan)(dan)元(yuan)(yuan)（DCU）的(de)(de)(de)相(xiang)關(guan)狀(zhuang)態(tai)信(xin)(xin)息(xi)。