一、地鐵屏蔽門系統的組成有哪些

地鐵屏蔽門系(xi)統由機(ji)(ji)(ji)械和電(dian)氣(qi)兩部(bu)分構(gou)(gou)成(cheng)，機(ji)(ji)(ji)械部(bu)分包括(kuo)門(men)(men)(men)(men)(men)體(ti)結(jie)構(gou)(gou)和門(men)(men)(men)(men)(men)機(ji)(ji)(ji)系(xi)統，電(dian)氣(qi)部(bu)分包括(kuo)電(dian)源系(xi)統和控制系(xi)統。主要構(gou)(gou)成(cheng)部(bu)分有(you)：門(men)(men)(men)(men)(men)體(ti)結(jie)構(gou)(gou)、門(men)(men)(men)(men)(men)機(ji)(ji)(ji)系(xi)統、門(men)(men)(men)(men)(men)機(ji)(ji)(ji)控制器（DCU）、車站級控制、監視系(xi)統。屏蔽門(men)(men)(men)(men)(men)門(men)(men)(men)(men)(men)體(ti)結(jie)構(gou)(gou)通常由滑(hua)動門(men)(men)(men)(men)(men)、固定門(men)(men)(men)(men)(men)、應急(ji)門(men)(men)(men)(men)(men)、端(duan)頭門(men)(men)(men)(men)(men)及門(men)(men)(men)(men)(men)機(ji)(ji)(ji)頂(ding)箱、踏步板(ban)、上下部(bu)連接結(jie)構(gou)(gou)等構(gou)(gou)成(cheng)。

其中(zhong)門機(ji)(ji)(ji)是(shi)由(you)驅動(dong)機(ji)(ji)(ji)構、傳動(dong)機(ji)(ji)(ji)構、懸(xuan)掛機(ji)(ji)(ji)構、鎖(suo)(suo)定解(jie)鎖(suo)(suo)機(ji)(ji)(ji)構組成。電機(ji)(ji)(ji)在門機(ji)(ji)(ji)控(kong)(kong)制(zhi)器(qi)（DcU）的(de)控(kong)(kong)制(zhi)下，通過螺桿或皮帶傳動(dong)來實現(xian)滑動(dong)門的(de)開關運動(dong)。屏蔽門控(kong)(kong)制(zhi)系統設備由(you)中(zhong)央(yang)控(kong)(kong)制(zhi)盤（PSC）、遠程監視設備（PSA）、就(jiu)地(di)控(kong)(kong)制(zhi)盤（PSL）、緊(jin)急控(kong)(kong)制(zhi)盤（IBP）、門機(ji)(ji)(ji)控(kong)(kong)制(zhi)器(qi)（DCU）、就(jiu)地(di)控(kong)(kong)制(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)(zhu)監(jian)(jian)(jian)(jian)(jian)(jian)視系(xi)(xi)統(tong)(tong)(tong)（MMS）是中央接口盤（PSC）核心部分，完成每側屏(ping)蔽(bi)門(men)單(dan)(dan)(dan)元(yuan)相關信息的(de)(de)(de)集成。包括收集PSC，PSL，IBP 以及屏(ping)蔽(bi)門(men)電(dian)源的(de)(de)(de)信息，屏(ping)蔽(bi)門(men)故(gu)障警報儲存(cun)，屏(ping)蔽(bi)門(men)正常系(xi)(xi)統(tong)(tong)(tong)運(yun)行記錄等。單(dan)(dan)(dan)元(yuan)控(kong)制器（PEDC）與主(zhu)(zhu)監(jian)(jian)(jian)(jian)(jian)(jian)視系(xi)(xi)統(tong)(tong)(tong)（MMS）之間的(de)(de)(de)監(jian)(jian)(jian)(jian)(jian)(jian)測(ce)信號(hao)通過可靠的(de)(de)(de)硬(ying)線(xian)來(lai)連(lian)接，每個單(dan)(dan)(dan)元(yuan)控(kong)制器（PEDC）將(jiang)為(wei)主(zhu)(zhu)監(jian)(jian)(jian)(jian)(jian)(jian)視系(xi)(xi)統(tong)(tong)(tong)（MMS）的(de)(de)(de)邏(luo)輯輸(shu)入模塊提供其(qi)操作狀態（邏(luo)輯電(dian)平信號(hao)），由主(zhu)(zhu)監(jian)(jian)(jian)(jian)(jian)(jian)視系(xi)(xi)統(tong)(tong)(tong)（MMS）監(jian)(jian)(jian)(jian)(jian)(jian)測(ce)屏(ping)蔽(bi)門(men)系(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)基本操作狀態。門(men)控(kong)單(dan)(dan)(dan)元(yuan)（DCU）與主(zhu)(zhu)監(jian)(jian)(jian)(jian)(jian)(jian)視系(xi)(xi)統(tong)(tong)(tong)（MMS）之間的(de)(de)(de)監(jian)(jian)(jian)(jian)(jian)(jian)視是通過使用通訊網(wang)絡(luo)(luo)（現(xian)場總線(xian)）來(lai)實現(xian)的(de)(de)(de)。每個門(men)控(kong)單(dan)(dan)(dan)元(yuan)（DCU）在網(wang)絡(luo)(luo)上(shang)(shang)都有一個唯一的(de)(de)(de)地(di)址，工程上(shang)(shang)，為(wei)了便于(yu)(yu)管理和標(biao)識，每個門(men)控(kong)單(dan)(dan)(dan)元(yuan)（DCU）的(de)(de)(de)地(di)址可取決于(yu)(yu)門(men)控(kong)單(dan)(dan)(dan)元(yuan)（DCU）在站臺上(shang)(shang)的(de)(de)(de)位置（上(shang)(shang)/下行線(xian)、門(men)單(dan)(dan)(dan)元(yuan)號(hao)）。由主(zhu)(zhu)監(jian)(jian)(jian)(jian)(jian)(jian)視系(xi)(xi)統(tong)(tong)(tong)（MMS）監(jian)(jian)(jian)(jian)(jian)(jian)測(ce)門(men)控(kong)單(dan)(dan)(dan)元(yuan)（DCU）的(de)(de)(de)相關狀態信息。