二、仿真校驗測試
目(mu)前(qian)國(guo)際(ji)上(shang)已(yi)經(jing)普(pu)遍(bian)采(cai)用(yong)的(de)是(shi)在(zai)現(xian)場(chang)之(zhi)前(qian)校(xiao)驗(yan)測(ce)試(shi)自(zi)控(kong)係(xi)統(tong)的(de)設(she)計(ji),從(cong)而(er)節(jie)省(sheng)大(da)量(liang)的(de)現(xian)場(chang)工(gong)作(zuo)時(shi)間(jian)和(he)勞(lao)動(dong)。國(guo)內(nei)則(ze)剛(gang)好(hao)相(xiang)反(fan),全(quan)麵(mian)軟(ruan)件(jian)測(ce)試(shi)和(he)綜(zong)合(he)軟(ruan)件(jian)測(ce)試(shi)全(quan)部(bu)需(xu)要(yao)到(dao)現(xian)場(chang)去(qu)做(zuo)。在(zai)現(xian)場(chang)邊(bian)安(an)裝(zhuang)邊(bian)調(tiao)試(shi)成(cheng)為(wei)國(guo)內(nei)所(suo)有(you)係(xi)統(tong)集(ji)成(cheng)商(shang)的(de)唯(wei)一(yi)選(xuan)擇(ze)。大(da)多(duo)數(shu)工(gong)程(cheng)都(dou)必(bi)須(xu)花(hua)費(fei)數(shu)個(ge)月(yue)的(de)現(xian)場(chang)時(shi)間(jian),不(bu)僅(jin)嚴(yan)重(zhong)影(ying)響(xiang)用(yong)戶(hu)的(de)產(chan)品(pin)上(shang)市(shi)時(shi)間(jian),對(dui)於(yu)係(xi)統(tong)集(ji)成(cheng)商(shang)本(ben)身(shen)也(ye)是(shi)巨(ju)大(da)人(ren)力(li)和(he)物(wu)力(li)的(de)浪(lang)費(fei)。
今天,長時間的現場調試已經變得不可容忍!zuizhongyonghugeiyuxitongjichengshangdeshijianyuelaiyueduan,bingqieduigongchengyanwuchuyigaoefajin。zhejiuposhizikongxitongjichengshangzaixianchangtiaoshizhiqianduizikongdaimashejijinxingxiaoyanceshi,faxianbinggengzhengjuedaduoshushejicuowu,congerquebaoshiyongzuiduandexianchangshijianwanchengxitongdeanzhuangtiaoshi。
henxianran,tongguofangzhenfangfajianlixianchangduixiangdexingshihuamoxing,ranhouzaicifangzhenhuanjingzhongduizikongruanjianjinxingxiaoyanheyanzhengshizuizirandejiejuefangan。dangran,zheyangdefangzhenxiaoyanbixushizaiwanzhengdefangzhenhuanjingxia(仿真整個生產線甚至是整個工廠環境)進行,而各硬件廠商自帶的仿真工具由於隻能仿真測試單個功能塊,是無法擔此重任的,需要使用一些先進的自控軟件設計CASE(計算機輔助軟件工程)工具,如ControlBuild等。 通過仿真進行校驗測試具有無可比擬的優點:
1、在(zai)仿(fang)真(zhen)環(huan)境(jing)下(xia)校(xiao)驗(yan)測(ce)試(shi)自(zi)控(kong)軟(ruan)件(jian),發(fa)現(xian)並(bing)更(geng)正(zheng)絕(jue)大(da)多(duo)數(shu)的(de)設(she)計(ji)錯(cuo)誤(wu),大(da)大(da)縮(suo)短(duan)現(xian)場(chang)安(an)裝(zhuang)調(tiao)試(shi)時(shi)間(jian)。從(cong)國(guo)外(wai)的(de)經(jing)驗(yan)來(lai)看(kan),通(tong)過(guo)仿(fang)真(zhen)校(xiao)驗(yan)可(ke)以(yi)將(jiang)數(shu)個(ge)月(yue)的(de)現(xian)場(chang)安(an)裝(zhuang)調(tiao)試(shi)時(shi)間(jian)縮(suo)短(duan)到(dao)數(shu)個(ge)星(xing)期(qi),極(ji)大(da)地(di)提(ti)高(gao)了(le)效(xiao)率(lv)。
2、在仿真環境下,改變環境及生產條件,測試設計的反應
3、在仿真環境下,可以引入各種異常,失靈情況,對設計進行破壞性測試
4、在仿真環境下,虛擬機器100%可使用
5、在仿真環境下,有更多的時間去測試和修改
6、仿真環境提供了更好的工作環境,避免進入一些高危險性的場合(高溫、酸、易爆、有毒等)
7、在物理設備或係統沒有實際安裝或聯接的情況下,可以提早校驗測試、提早投產
8、係統操作員和維護人員可以提早接受培訓,提高操作維護水平。
仿真校驗在歐美自控界已被廣泛使用。更由於仿真校驗對最終用戶的巨大好處(幾乎沒有壞處)而受到最終用戶的強烈推崇。許多公司甚至硬性規定必須使用仿真校驗。例如,PSAbiaozhixuetielongjituanjiuqiangpoyaoqiusuoyouzikongxitongjichengshang,zaixianchanganzhuangzhiqianbixushiyongfangzhenduishejijinxingxiaoyanceshi,quebaoshengchanxiananshigaozhiliangwangong。shishishang,laizizuizhongyonghudeqianglituidongzhengshifangzhenxiaoyanzaioumeixunsutuiguangqilaidezhongyaoyuanyinzhiyi。ranerlingrenjingyadeshi,zheyangdexianjinlinianzaiguoneiquewushengwuxi,womenchichikanbudaozhefangmiandejieshaohetantao。erzuizhongyonghugengshizaibuzhiqingdeqingkuangxiabeipojieshouxiaolvjiqidixiadexianchangtiaoshi,bingqieduipinfandegongchengyanwuheyusuanchaobiaoshushouwuce。dangranwomenxiangxinzheyangdezhuangkuangbuhuichijiu。suizheguowaizikongxitongjichengshanghegongchenggongsidezhubujinru,xianjindezikongshejilinianyebiransuizhijinruzhongguo。fangzhenxiaoyanzuoweiyigubukezudangdechaoliu,zaiguoneizikongjiedeliuxingjiangzhirikedai。
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