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)由(you)機(ji)(ji)械和電氣兩部(bu)分構(gou)(gou)(gou)成，機(ji)(ji)械部(bu)分包括門(men)(men)體(ti)結構(gou)(gou)(gou)和門(men)(men)機(ji)(ji)系(xi)(xi)統(tong)(tong)，電氣部(bu)分包括電源系(xi)(xi)統(tong)(tong)和控(kong)制(zhi)系(xi)(xi)統(tong)(tong)。主要構(gou)(gou)(gou)成部(bu)分有：門(men)(men)體(ti)結構(gou)(gou)(gou)、門(men)(men)機(ji)(ji)系(xi)(xi)統(tong)(tong)、門(men)(men)機(ji)(ji)控(kong)制(zhi)器(qi)（DCU）、車(che)站級控(kong)制(zhi)、監視系(xi)(xi)統(tong)(tong)。屏蔽(bi)門(men)(men)門(men)(men)體(ti)結構(gou)(gou)(gou)通常由(you)滑動門(men)(men)、固(gu)定門(men)(men)、應急門(men)(men)、端(duan)頭門(men)(men)及門(men)(men)機(ji)(ji)頂(ding)箱、踏步板(ban)、上下部(bu)連接結構(gou)(gou)(gou)等構(gou)(gou)(gou)成。

其中門(men)(men)機(ji)(ji)是(shi)由(you)驅動機(ji)(ji)構(gou)、傳(chuan)動機(ji)(ji)構(gou)、懸(xuan)掛機(ji)(ji)構(gou)、鎖定解鎖機(ji)(ji)構(gou)組成。電機(ji)(ji)在門(men)(men)機(ji)(ji)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器（DcU）的控(kong)(kong)(kong)制(zhi)(zhi)(zhi)下，通過螺桿(gan)或皮帶傳(chuan)動來實(shi)現滑動門(men)(men)的開關(guan)運動。屏蔽門(men)(men)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)設(she)備由(you)中央控(kong)(kong)(kong)制(zhi)(zhi)(zhi)盤(pan)(pan)（PSC）、遠程監視設(she)備（PSA）、就地(di)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)盤(pan)(pan)（PSL）、緊急控(kong)(kong)(kong)制(zhi)(zhi)(zhi)盤(pan)(pan)（IBP）、門(men)(men)機(ji)(ji)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器（DCU）、就地(di)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)盒（LCB）組成。

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，實現屏蔽門的站臺級控制操作。

2、監視功能

主(zhu)監(jian)(jian)(jian)(jian)視(shi)系(xi)統(tong)(tong)（MMS）是(shi)(shi)中央接口盤（PSC）核(he)心部分，完成(cheng)每側屏(ping)蔽門(men)(men)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)相關(guan)信息(xi)的(de)集成(cheng)。包括(kuo)收集PSC，PSL，IBP 以及屏(ping)蔽門(men)(men)電(dian)源的(de)信息(xi)，屏(ping)蔽門(men)(men)故(gu)障(zhang)警報(bao)儲存，屏(ping)蔽門(men)(men)正常系(xi)統(tong)(tong)運行(xing)記錄等。單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)控(kong)(kong)制器（PEDC）與主(zhu)監(jian)(jian)(jian)(jian)視(shi)系(xi)統(tong)(tong)（MMS）之間(jian)的(de)監(jian)(jian)(jian)(jian)測(ce)(ce)信號通(tong)過可(ke)靠的(de)硬線來(lai)連接，每個單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)控(kong)(kong)制器（PEDC）將(jiang)為主(zhu)監(jian)(jian)(jian)(jian)視(shi)系(xi)統(tong)(tong)（MMS）的(de)邏輯輸入模塊提供其操(cao)作狀態(tai)（邏輯電(dian)平(ping)信號），由主(zhu)監(jian)(jian)(jian)(jian)視(shi)系(xi)統(tong)(tong)（MMS）監(jian)(jian)(jian)(jian)測(ce)(ce)屏(ping)蔽門(men)(men)系(xi)統(tong)(tong)的(de)基本操(cao)作狀態(tai)。門(men)(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）與主(zhu)監(jian)(jian)(jian)(jian)視(shi)系(xi)統(tong)(tong)（MMS）之間(jian)的(de)監(jian)(jian)(jian)(jian)視(shi)是(shi)(shi)通(tong)過使(shi)用通(tong)訊(xun)網(wang)絡（現場(chang)總線）來(lai)實現的(de)。每個門(men)(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）在網(wang)絡上都有一個唯一的(de)地址(zhi)，工(gong)程上，為了便于管理和標(biao)識(shi)，每個門(men)(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）的(de)地址(zhi)可(ke)取決于門(men)(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）在站臺上的(de)位置（上/下行(xing)線、門(men)(men)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)號）。由主(zhu)監(jian)(jian)(jian)(jian)視(shi)系(xi)統(tong)(tong)（MMS）監(jian)(jian)(jian)(jian)測(ce)(ce)門(men)(men)控(kong)(kong)單(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)（DCU）的(de)相關(guan)狀態(tai)信息(xi)。