http://kadhoai.com.cn 2026-04-25 10:38:40 來源:控製工程
安全自動化麵臨的挑戰能夠通過其發展趨勢得到反映。無論對於傳感器還是執行器而言,市場上需要的是那些全麵、兼jian容rong的de解jie決jue方fang案an。隨sui著zhe以yi太tai網wang日ri益yi成cheng為wei了le一yi種zhong通tong用yong的de通tong信xin係xi統tong,信xin息xi技ji術shu和he自zi動dong化hua領ling域yu正zheng漸jian行xing漸jian近jin。於yu是shi,我wo們men麵mian臨lin的de全quan新xin挑tiao戰zhan不bu僅jin會hui影ying響xiang到dao安an全quan性xing,同tong時shi還hai涉she及ji到dao保bao密mi性xing。
如(ru)今(jin)的(de)發(fa)展(zhan)趨(qu)勢(shi)正(zheng)在(zai)從(cong)專(zhuan)用(yong)的(de)集(ji)中(zhong)控(kong)製(zhi)結(jie)構(gou)轉(zhuan)移(yi)到(dao)分(fen)布(bu)式(shi)的(de)獨(du)立(li)自(zi)動(dong)化(hua)單(dan)元(yuan)以(yi)及(ji)隨(sui)之(zhi)產(chan)生(sheng)的(de)機(ji)電(dian)一(yi)體(ti)化(hua)和(he)模(mo)塊(kuai)化(hua)方(fang)法(fa)。但(dan)是(shi),網(wang)絡(luo)控(kong)製(zhi)係(xi)統(tong)必(bi)須(xu)化(hua)繁(fan)就(jiu)簡(jian)。隻(zhi)有(you)那(na)些(xie)能(neng)夠(gou)簡(jian)化(hua)用(yong)戶(hu)操(cao)作(zuo),並(bing)且(qie)大(da)大(da)增(zeng)加(jia)靈(ling)活(huo)性(xing)的(de)解(jie)決(jue)方(fang)案(an)才(cai)擁(yong)有(you)光(guang)明(ming)的(de)未(wei)來(lai)。
在技術的不斷前進的過程中,標準也起到了至關重要的作用。事實上,它們也同時反映了發展趨勢。
目(mu)前(qian),在(zai)機(ji)械(xie)安(an)全(quan)方(fang)麵(mian)出(chu)現(xian)了(le)一(yi)整(zheng)套(tao)標(biao)準(zhun)和(he)指(zhi)南(nan),它(ta)們(men)中(zhong)的(de)一(yi)部(bu)分(fen)是(shi)全(quan)新(xin)製(zhi)定(ding)的(de),另(ling)一(yi)部(bu)分(fen)旨(zhi)在(zai)替(ti)換(huan)現(xian)有(you)的(de)版(ban)本(ben)。其(qi)中(zhong),最(zui)重(zhong)要(yao)的(de)兩(liang)項(xiang)變(bian)化(hua)是(shi)於(yu)2009年11月29日強製實施的新版機械指令(2006/42/EC)和用來替代EN 954-1的EN ISO 13849-1。此外,還增加了DIN EN 62061作為DIN EN 61508的補充。相關人員的普遍看法是,對於最終用戶和係統集成商而言,這樣的轉變絲毫不會為安全解決方案帶來便利。
第di一yi次ci,我wo們men能neng夠gou用yong一yi種zhong量liang化hua的de方fang法fa評ping估gu並bing驗yan證zheng安an全quan設she備bei。生sheng產chan商shang在zai設she計ji產chan品pin時shi需xu要yao將jiang這zhe一yi變bian化hua銘ming記ji在zai心xin。用yong戶hu也ye應ying該gai將jiang這zhe一yi變bian化hua看kan作zuo一yi種zhong契qi機ji,並bing積ji極ji采cai用yong新xin方fang法fa。
新(xin)標(biao)準(zhun)主(zhu)要(yao)考(kao)慮(lv)了(le)工(gong)廠(chang)或(huo)機(ji)器(qi)設(she)備(bei)從(cong)設(she)計(ji)到(dao)退(tui)役(yi)的(de)完(wan)整(zheng)生(sheng)命(ming)周(zhou)期(qi)。通(tong)過(guo)量(liang)化(hua)的(de)評(ping)估(gu)方(fang)法(fa),我(wo)們(men)能(neng)夠(gou)從(cong)全(quan)局(ju)出(chu)發(fa)計(ji)算(suan)從(cong)傳(chuan)感(gan)器(qi)到(dao)執(zhi)行(xing)器(qi)的(de)每(mei)一(yi)個(ge)影(ying)響(xiang)因(yin)素(su),並(bing)將(jiang)這(zhe)些(xie)因(yin)素(su)與(yu)通(tong)過(guo)風(feng)險(xian)分(fen)析(xi)建(jian)立(li)起(qi)的(de)要(yao)求(qiu)進(jin)行(xing)比(bi)較(jiao)。對(dui)於(yu)生(sheng)產(chan)商(shang)而(er)言(yan),他(ta)們(men)必(bi)須(xu)關(guan)注(zhu)每(mei)一(yi)個(ge)影(ying)響(xiang)因(yin)素(su),並(bing)且(qie)為(wei)用(yong)戶(hu)提(ti)供(gong)兼(jian)容(rong)解(jie)決(jue)方(fang)案(an),以(yi)降(jiang)低(di)複(fu)雜(za)性(xing)以(yi)及(ji)用(yong)戶(hu)的(de)接(jie)入(ru)投(tou)資(zi)。

一條封裝流水線經過實際配置後,能夠提升安全性能。橙色區域代表了一些能夠降低風險並增加效率的技術。本圖片由Pilz提供。
智能融合
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將安全運動融入驅動技術
這(zhe)一(yi)領(ling)域(yu)未(wei)來(lai)的(de)發(fa)展(zhan)趨(qu)勢(shi)之(zhi)一(yi)是(shi)安(an)全(quan)運(yun)動(dong)。換(huan)而(er)言(yan)之(zhi),就(jiu)是(shi)將(jiang)安(an)全(quan)性(xing)整(zheng)入(ru)驅(qu)動(dong)技(ji)術(shu)。安(an)全(quan)功(gong)能(neng)整(zheng)合(he)將(jiang)在(zai)這(zhe)一(yi)領(ling)域(yu)長(chang)足(zu)發(fa)展(zhan),為(wei)用(yong)戶(hu)提(ti)供(gong)多(duo)合(he)一(yi)解(jie)決(jue)方(fang)案(an)。然(ran)而(er),產(chan)品(pin)和(he)係(xi)統(tong)隻(zhi)是(shi)一(yi)方(fang)麵(mian),服(fu)務(wu)的(de)重(zhong)要(yao)性(xing)正(zheng)越(yue)發(fa)顯(xian)現(xian)。這(zhe)裏(li)所(suo)謂(wei)的(de)服(fu)務(wu)是(shi)指(zhi)為(wei)用(yong)戶(hu)的(de)應(ying)用(yong)提(ti)供(gong)目(mu)標(biao)明(ming)確(que)的(de)專(zhuan)業(ye)說(shuo)明(ming)。尤(you)其(qi)是(shi)當(dang)你(ni)意(yi)識(shi)到(dao)這(zhe)樣(yang)的(de)服(fu)務(wu)能(neng)夠(gou)使(shi)企(qi)業(ye)專(zhuan)注(zhu)於(yu)核(he)心(xin)競(jing)爭(zheng)力(li),並(bing)將(jiang)安(an)全(quan)性(xing)轉(zhuan)化(hua)為(wei)企(qi)業(ye)價(jia)值(zhi)時(shi),情(qing)況(kuang)更(geng)是(shi)如(ru)此(ci)。
從(cong)網(wang)絡(luo)連(lian)接(jie)和(he)數(shu)據(ju)傳(chuan)送(song)角(jiao)度(du)看(kan),辦(ban)公(gong)通(tong)信(xin)已(yi)經(jing)通(tong)過(guo)以(yi)太(tai)網(wang)進(jin)入(ru)到(dao)自(zi)動(dong)化(hua)領(ling)域(yu)了(le)。緊(jin)接(jie)著(zhe),標(biao)準(zhun)現(xian)場(chang)總(zong)線(xian)係(xi)統(tong)也(ye)會(hui)經(jing)曆(li)類(lei)似(si)的(de)發(fa)展(zhan)。一(yi)些(xie)現(xian)有(you)的(de)協(xie)議(yi)中(zhong)已(yi)經(jing)補(bu)充(chong)了(le)安(an)全(quan)層(ceng)。至(zhi)於(yu)那(na)些(xie)對(dui)自(zi)由(you)反(fan)饋(kui)、高性能安全技術有特殊要求的係統而言,它們從設計之初就遵循了一套不同尋常的流程。
辦(ban)公(gong)網(wang)絡(luo)和(he)自(zi)動(dong)化(hua)網(wang)絡(luo)的(de)融(rong)合(he)意(yi)味(wei)著(zhe)安(an)全(quan)性(xing)和(he)可(ke)行(xing)性(xing)將(jiang)會(hui)變(bian)得(de)越(yue)發(fa)重(zhong)要(yao),尤(you)其(qi)是(shi)考(kao)慮(lv)到(dao)以(yi)太(tai)網(wang)係(xi)統(tong)采(cai)用(yong)的(de)是(shi)開(kai)放(fang)式(shi)接(jie)口(kou)以(yi)及(ji)工(gong)業(ye)上(shang)可(ke)能(neng)用(yong)到(dao)無(wu)線(xian)係(xi)統(tong)時(shi),情(qing)況(kuang)更(geng)是(shi)如(ru)此(ci)。因(yin)此(ci),自(zi)動(dong)化(hua)係(xi)統(tong)的(de)安(an)全(quan)性(xing)和(he)保(bao)密(mi)性(xing)必(bi)須(xu)是(shi)從(cong)整(zheng)體(ti)出(chu)發(fa)通(tong)盤(pan)考(kao)慮(lv)的(de)。
分布式控製
控(kong)製(zhi)功(gong)能(neng)分(fen)散(san)化(hua)也(ye)會(hui)持(chi)續(xu)發(fa)展(zhan)下(xia)去(qu),因(yin)此(ci)我(wo)們(men)有(you)必(bi)要(yao)從(cong)兩(liang)方(fang)麵(mian)看(kan)待(dai)這(zhe)一(yi)問(wen)題(ti)。首(shou)先(xian),將(jiang)外(wai)圍(wei)設(she)備(bei)分(fen)散(san)化(hua)能(neng)夠(gou)降(jiang)低(di)布(bu)線(xian)規(gui)模(mo),進(jin)而(er)縮(suo)減(jian)相(xiang)關(guan)成(cheng)本(ben)。其(qi)次(ci)控(kong)製(zhi)工(gong)程(cheng)網(wang)版(ban)權(quan)所(suo)有(you),相(xiang)同(tong)的(de)控(kong)製(zhi)程(cheng)序(xu)和(he)子(zi)功(gong)能(neng)經(jing)過(guo)分(fen)散(san)化(hua)後(hou),就(jiu)類(lei)似(si)於(yu)一(yi)個(ge)個(ge)機(ji)器(qi)零(ling)部(bu)件(jian),有(you)利(li)於(yu)實(shi)現(xian)模(mo)塊(kuai)化(hua)。這(zhe)樣(yang)做(zuo)是(shi)為(wei)了(le)盡(jin)可(ke)能(neng)重(zhong)複(fu)利(li)用(yong)相(xiang)同(tong)模(mo)塊(kuai),為(wei)自(zi)動(dong)化(hua)項(xiang)目(mu)標(biao)準(zhun)化(hua)鋪(pu)平(ping)道(dao)路(lu)。雖(sui)然(ran)控(kong)製(zhi)技(ji)術(shu)分(fen)散(san)化(hua)尚(shang)存(cun)在(zai)缺(que)陷(xian),但(dan)是(shi)這(zhe)一(yi)概(gai)念(nian)已(yi)經(jing)被(bei)成(cheng)功(gong)運(yun)用(yong)在(zai)機(ji)械(xie)行(xing)業(ye)以(yi)及(ji)係(xi)統(tong)組(zu)件(jian)中(zhong)了(le)。
集中式觀點
如(ru)今(jin),針(zhen)對(dui)網(wang)絡(luo)型(xing)多(duo)路(lu)控(kong)製(zhi)係(xi)統(tong)的(de)解(jie)決(jue)方(fang)案(an)為(wei)用(yong)戶(hu)帶(dai)去(qu)了(le)高(gao)度(du)的(de)複(fu)雜(za)性(xing)。這(zhe)種(zhong)情(qing)況(kuang)下(xia),我(wo)們(men)堅(jian)信(xin)最(zui)終(zhong)脫(tuo)穎(ying)而(er)出(chu)的(de)將(jiang)是(shi)那(na)些(xie)一(yi)開(kai)始(shi)就(jiu)簡(jian)化(hua)了(le)用(yong)戶(hu)對(dui)多(duo)路(lu)控(kong)製(zhi)網(wang)絡(luo)的(de)操(cao)作(zuo),並(bing)且(qie)避(bi)免(mian)了(le)連(lian)接(jie)問(wen)題(ti)的(de)解(jie)決(jue)方(fang)案(an)。理(li)想(xiang)情(qing)況(kuang)下(xia),機(ji)械(xie)係(xi)統(tong)、硬件和控製軟件都存在相同的分布局限性。分布式控製這一概念的優勢在於用戶仍然能夠以集中式的觀點看待分布式控製係統。
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軟件解決方案
在過去,各個單元之間往往通過各種有線方式連接的;如(ru)今(jin),更(geng)貼(tie)近(jin)用(yong)戶(hu)的(de)軟(ruan)件(jian)解(jie)決(jue)方(fang)案(an)已(yi)經(jing)成(cheng)為(wei)了(le)發(fa)展(zhan)趨(qu)勢(shi)。軟(ruan)件(jian)解(jie)決(jue)方(fang)案(an)的(de)功(gong)能(neng)日(ri)漸(jian)強(qiang)大(da),複(fu)雜(za)性(xing)也(ye)隨(sui)之(zhi)加(jia)大(da),這(zhe)樣(yang)做(zuo)的(de)目(mu)的(de)是(shi)為(wei)了(le)通(tong)過(guo)出(chu)色(se)的(de)診(zhen)斷(duan)功(gong)能(neng)簡(jian)化(hua)工(gong)程(cheng)和(he)服(fu)務(wu)。對(dui)於(yu)一(yi)款(kuan)實(shi)用(yong)工(gong)具(ju)而(er)言(yan),它(ta)的(de)操(cao)作(zuo)必(bi)須(xu)直(zhi)觀(guan),並(bing)且(qie)能(neng)夠(gou)在(zai)項(xiang)目(mu)過(guo)程(cheng)中(zhong)為(wei)用(yong)戶(hu)提(ti)供(gong)指(zhi)導(dao)控(kong)製(zhi)工(gong)程(cheng)網(wang)版(ban)權(quan)所(suo)有(you),而(er)非(fei)束(shu)縛(fu)用(yong)戶(hu)的(de)手(shou)腳(jiao)。
過(guo)去(qu),安(an)全(quan)自(zi)動(dong)化(hua)的(de)一(yi)大(da)特(te)征(zheng)就(jiu)是(shi)通(tong)過(guo)有(you)形(xing)的(de)隔(ge)離(li)措(cuo)施(shi)將(jiang)人(ren)員(yuan)與(yu)危(wei)險(xian)區(qu)域(yu)分(fen)隔(ge)開(kai)。如(ru)果(guo)人(ren)員(yuan)需(xu)要(yao)進(jin)入(ru)危(wei)險(xian)區(qu)域(yu),那(na)麼(me)生(sheng)產(chan)流(liu)程(cheng)將(jiang)通(tong)過(guo)開(kai)關(guan)傳(chuan)感(gan)器(qi)(安全門開關)zhuanhuandaoanquanzhuangtai。rujin,zheyijingshiyigejiyujiandandelubangyuanlibingjingguoyanzhengdefanganle。danshi,zhezhongfangandequedianshixuyaopinfanguanbihekaiqishengchanliucheng。tuxiangchulifangmiandeyixiexinjishuzaiweiyouhuarenjihudongtigongyixiliekexingfangandetongshi,yezengjialeshixiangenggaochanlianghexiaoyidekenengxing。