電(dian)子汽(qi)(qi)車(che)(che)衡作(zuo)為(wei)一種(zhong)準確、方便(bian)、快捷的(de)(de)(de)稱重(zhong)(zhong)計(ji)(ji)量(liang)(liang)(liang)設備被(bei)越(yue)來越(yue)多(duo)的(de)(de)(de)行(xing)業所(suo)使用，然而在很(hen)多(duo)地區出現了利(li)用電(dian)子汽(qi)(qi)車(che)(che)衡在計(ji)(ji)量(liang)(liang)(liang)過程中進行(xing)稱重(zhong)(zhong)作(zuo)弊的(de)(de)(de)現象(xiang)，采(cai)用各種(zhong)方式在車(che)(che)輛計(ji)(ji)量(liang)(liang)(liang)毛重(zhong)(zhong)、皮重(zhong)(zhong)時(shi)做手(shou)腳(jiao)，造成少則幾百公(gong)斤(jin)、多(duo)則幾噸的(de)(de)(de)計(ji)(ji)量(liang)(liang)(liang)偏差，從中非法牟(mou)利(li)。小編為(wei)大(da)家查閱了一些有關電(dian)子汽(qi)(qi)車(che)(che)衡公(gong)司(si)的(de)(de)(de)作(zuo)弊方式，希望大(da)家不會被(bei)騙(pian)，能(neng)更好的(de)(de)(de)選擇。
一、電(dian)子汽車衡公司作弊方式：
1對稱重傳感器(qi)到儀(yi)表的電子線路私接非法裝置，來達到計量作弊的目(mu)的；
2、對計(ji)量車輛采取帶掛(gua)車過重(zhong)，單車回皮的(de)(de)手段來達到提高凈重(zhong)的(de)(de)目(mu)的(de)(de)；
3、用被稱重車(che)輛裝載以損(sun)耗物體(ti)（如(ru)水(shui)）在(zai)回皮(pi)重時(shi)將水(shui)倒掉，在(zai)駕駛室多坐人員，回皮(pi)重時(shi)多坐人員不上車(che)達到提(ti)高凈重的目(mu)的。
4、隨(sui)著現在車輛(liang)長(chang)(chang)度(du)的(de)(de)增長(chang)(chang)，秤體長(chang)(chang)度(du)也在增長(chang)(chang)，使得計量(liang)員(yuan)在觀 察車輛(liang)在秤上的(de)(de)計量(liang)位置是否合理時有較大(da)的(de)(de)難度(du)，容易使不法(fa)人員(yuan)鉆空子，采(cai)用壓秤、不完全(quan)上秤等作(zuo)弊手段；
5、計量(liang)員(yuan)受(shou)非法(fa)分子的威脅(xie)或(huo)利誘(you)，在微機(ji)稱量(liang)確認環節上做手腳，改變稱量(liang)結(jie)果(guo)。這(zhe)些作弊情況如不及時(shi)發(fa)現，會給企業造(zao)成巨大的經濟損失。
二(er)、電(dian)子(zi)汽車衡電(dian)子(zi)作弊裝置原理(li)
該裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)的(de)(de)工作原理是在稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)內部測量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)輸出(chu)/輸入信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)中(zhong)(zhong)(zhong)串接(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻，引起輸出(chu)信(xin)號(hao)(hao)(hao)(hao)減(jian)少(shao)，以(yi)達到(dao)(dao)減(jian)輕或增(zeng)加所(suo)稱(cheng)(cheng)(cheng)重(zhong)(zhong)量(liang)的(de)(de)目的(de)(de)。根據筆者(zhe)近幾年(nian)發現的(de)(de)作弊現象，一(yi)般(ban)作弊裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)在稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)的(de)(de)信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、稱(cheng)(cheng)(cheng)重(zhong)(zhong)顯(xian)示儀(yi)表和接(jie)(jie)線(xian)(xian)(xian)盒內。下面(mian)著(zhu)重(zhong)(zhong)介(jie)紹在稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)中(zhong)(zhong)(zhong)安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)盜竊裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)進行作弊的(de)(de)現象。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子汽車衡安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時，室外(wai)(wai)若干只(zhi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)的(de)(de)信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)通過穿線(xian)(xian)(xian)管(guan)接(jie)(jie)到(dao)(dao)接(jie)(jie)線(xian)(xian)(xian)盒，但信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)仍有一(yi)部分裸露在外(wai)(wai)，這(zhe)一(yi)小(xiao)段信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)就給(gei)一(yi)些不(bu)法(fa)分子以(yi)可趁之機(ji)。受利(li)益驅動(dong)，他們會(hui)(hui)尋找機(ji)會(hui)(hui)將其(qi)中(zhong)(zhong)(zhong)一(yi)只(zhi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)信(xin)號(hao)(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)外(wai)(wai)皮剝開(kai)，并將稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)的(de)(de)激(ji)勵電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)正（+EX）線(xian)(xian)(xian)斷(duan)開(kai)，若傳(chuan)感(gan)器(qi)(qi)是六線(xian)(xian)(xian)制(zhi)連接(jie)(jie)，則(ze)同時斷(duan)開(kai)反(fan)饋電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)正（+F）線(xian)(xian)(xian)，斷(duan)開(kai)后，將遙控(kong)接(jie)(jie)收裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)串接(jie)(jie)到(dao)(dao)激(ji)勵電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)正（+EX）線(xian)(xian)(xian)中(zhong)(zhong)(zhong)。在現場(chang)我們還發現接(jie)(jie)收裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)串接(jie)(jie)到(dao)(dao)信(xin)號(hao)(hao)(hao)(hao)線(xian)(xian)(xian)（+Si或–Si）中(zhong)(zhong)(zhong)。該作弊裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)加裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)后，一(yi)般(ban)不(bu)會(hui)(hui)影響電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子汽車衡的(de)(de)正常使(shi)用，只(zhi)有不(bu)法(fa)分子在秤體的(de)(de)幾十米開(kai)外(wai)(wai)打開(kai)遙控(kong)器(qi)(qi)遙控(kong)時，接(jie)(jie)收器(qi)(qi)接(jie)(jie)到(dao)(dao)信(xin)號(hao)(hao)(hao)(hao)后，其(qi)中(zhong)(zhong)(zhong)的(de)(de)繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)動(dong)作，將一(yi)只(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻串接(jie)(jie)到(dao)(dao)激(ji)勵電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)正（+EX）線(xian)(xian)(xian)或信(xin)號(hao)(hao)(hao)(hao)線(xian)(xian)(xian)（+Si或–Si）中(zhong)(zhong)(zhong)，從而造(zao)成稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)感(gan)器(qi)(qi)惠斯(si)通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋的(de)(de)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)減(jian)少(shao)或增(zeng)加，或信(xin)號(hao)(hao)(hao)(hao)線(xian)(xian)(xian)串接(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻后，使(shi)輸出(chu)的(de)(de)毫伏級電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)信(xin)號(hao)(hao)(hao)(hao)減(jian)少(shao)或增(zeng)加，造(zao)成汽車衡所(suo)稱(cheng)(cheng)(cheng)重(zhong)(zhong)量(liang)減(jian)輕或增(zeng)加。這(zhe)種盜竊方法(fa)隱(yin)蔽性強(qiang)、操作方便，很(hen)難(nan)被察(cha)覺。在稱(cheng)(cheng)(cheng)重(zhong)(zhong)顯(xian)示儀(yi)表內加裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)遙控(kong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)，通常加在儀(yi)表A/D轉換前，通過遙控(kong)改變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值來(lai)調整稱(cheng)(cheng)(cheng)重(zhong)(zhong)儀(yi)表稱(cheng)(cheng)(cheng)量(liang)示值。
三、電(dian)子(zi)汽車衡作弊的方式
電子汽車衡的(de)防作(zuo)弊盜竊(qie)裝置不僅減輕或(huo)增加所(suo)稱重(zhong)量，給(gei)企業(ye)(ye)帶來經濟(ji)損失(shi)；有(you)(you)的(de)盜竊(qie)裝置由于自(zi)身質量或(huo)安(an)裝問(wen)題還常(chang)常(chang)引發稱重(zhong)系統故(gu)障而無法正常(chang)稱重(zhong)。為了維護(hu)企業(ye)(ye)的(de)合法利益，減少不必要的(de)經濟(ji)損失(shi)，不給(gei)不法分子以可趁(chen)之機，企業(ye)(ye)可采取行之有(you)(you)效(xiao)的(de)方法來杜(du)絕(jue)利用遙控裝置進行作(zuo)弊的(de)違(wei)法行為。除加強管理(li)，提(ti)高責(ze)任(ren)心(xin)外，如何防范電子汽車衡作(zuo)弊呢，下面(mian)小編談幾點防范措施供(gong)大家參(can)考。
1、重點做好稱重傳(chuan)感(gan)器裸(luo)(luo)露(lu)電纜線(xian)(xian)的防護。電子(zi)汽車衡的稱重傳(chuan)感(gan)器在安裝(zhuang)時(shi)，其(qi)信號(hao)電纜通過穿線(xian)(xian)管(guan)接到接線(xian)(xian)盒，但仍有一(yi)小部(bu)分(fen)裸(luo)(luo)露(lu)在穿線(xian)(xian)管(guan)以(yi)外，不法分(fen)子(zi)正(zheng)是(shi)利用這部(bu)分(fen)裸(luo)(luo)露(lu)的電纜線(xian)(xian)剝開外皮，安裝(zhuang)遙(yao)控裝(zhuang)置進行作(zuo)弊的。
2、對易做手(shou)腳的的部位要經常(chang)檢(jian)查。經常(chang)檢(jian)查各(ge)傳(chuan)感(gan)器(qi)(qi)外露(lu)線部分有(you)(you)(you)無(wu)有(you)(you)(you)外露(lu)表皮現(xian)象，是(shi)(shi)否(fou)有(you)(you)(you)短(duan)路短(duan)接或被(bei)人(ren)為破壞現(xian)象等等，經常(chang)檢(jian)查傳(chuan)感(gan)器(qi)(qi)球體部分有(you)(you)(you)無(wu)松動，預埋墊(dian)有(you)(you)(you)無(wu)塌陷(xian)或變形，各(ge)點(dian)有(you)(you)(you)無(wu)異樣變化，因此，我們(men)可(ke)以考慮在稱重傳(chuan)感(gan)器(qi)(qi)與穿線管(guan)之間(jian)采用包塑軟管(guan)或不銹鋼軟管(guan)進行防護，在稱重傳(chuan)感(gan)器(qi)(qi)一端接頭采用帶絲接頭，金屬穿線管(guan)一端也采用螺紋接頭，以防止(zhi)(zhi)信號電(dian)纜外露(lu)而被(bei)破壞串接遙控裝置。經常(chang)檢(jian)查顯示(shi)器(qi)(qi)是(shi)(shi)否(fou)被(bei)打(da)開過，技術監督部門(men)檢(jian)定鉛封(feng)或合(he)格印證是(shi)(shi)否(fou)完好無(wu)損，檢(jian)定鉛封(feng)或合(he)格印證破壞后(hou)該(gai)衡器(qi)(qi)視為不合(he)格計量(liang)器(qi)(qi)具(ju)，磅房(fang)內(nei)禁止(zhi)(zhi)閑雜人(ren)員(yuan)入內(nei)，司磅人(ren)員(yuan)出(chu)進鎖門(men)，嚴加防范。
3、安裝(zhuang)(zhuang)電子(zi)汽車衡(heng)防作弊裝(zhuang)(zhuang)置，在不法分子(zi)使用遙控器(qi)遙控作弊裝(zhuang)(zhuang)置起動時(shi)(shi)可以及時(shi)(shi)報警，現場捉拿(na)不法分子(zi)。安裝(zhuang)(zhuang)紅外對攝裝(zhuang)(zhuang)置。在車輛不完全上(shang)承載器(qi)時(shi)(shi)及時(shi)(shi)報警，及時(shi)(shi)發(fa)現予以糾正。
4、對司磅(bang)(bang)人員(yuan)進行(xing)嚴格管理，嚴格培訓。計(ji)量(liang)(liang)的(de)(de)結(jie)果仍(reng)是由計(ji)量(liang)(liang)員(yuan)得出，這樣計(ji)量(liang)(liang)的(de)(de)重要環節和傳統的(de)(de)計(ji)量(liang)(liang)方(fang)式存在有相同的(de)(de)弊病(bing)，計(ji)量(liang)(liang)結(jie)果容易受(shou)人為的(de)(de)影(ying)響。計(ji)量(liang)(liang)員(yuan)可能受(shou)經濟利益的(de)(de)驅使，在稱量(liang)(liang)過程(cheng)中(zhong)協(xie)助非(fei)法(fa)人員(yuan)作弊。對磅(bang)(bang)房加設(she)安保措施，夜間進行(xing)不(bu)(bu)間斷巡邏，必(bi)要時幫房內(nei)外加裝(zhuang)監(jian)(jian)控(kong)裝(zhuang)置，這樣既可監(jian)(jian)控(kong)磅(bang)(bang)房外面情況，震懾不(bu)(bu)法(fa)分子(zi)不(bu)(bu)敢接(jie)觸承載器，也可監(jian)(jian)控(kong)司磅(bang)(bang)人員(yuan)工作狀況。
5、在稱(cheng)重(zhong)過程(cheng)中經常觀察顯示(shi)器(qi)顯示(shi)示(shi)值(zhi)是(shi)否(fou)有忽高忽低現象，稱(cheng)重(zhong)結束后顯示(shi)器(qi)是(shi)否(fou)迅速(su)回零位并穩(wen)定(ding)，不稱(cheng)重(zhong)時顯示(shi)器(qi)受(shou)否(fou)穩(wen)定(ding)無數(shu)值(zhi)漂移(yi)現象，如有以上類似情況，迅速(su)與計量檢定(ding)部門或(huo)專業人(ren)士聯系，排(pai)除(chu)異(yi)類情況。
6、采用數(shu)(shu)字(zi)(zi)式(shi)(shi)汽(qi)車衡(heng)，數(shu)(shu)字(zi)(zi)式(shi)(shi)汽(qi)車衡(heng)采用數(shu)(shu)字(zi)(zi)式(shi)(shi)稱(cheng)(cheng)(cheng)重顯示(shi)儀表和數(shu)(shu)字(zi)(zi)式(shi)(shi)稱(cheng)(cheng)(cheng)重傳(chuan)感(gan)器(qi)，其信號(hao)傳(chuan)輸采用數(shu)(shu)字(zi)(zi)通(tong)訊技術，總線結構，RS485接口實(shi)現(xian)信號(hao)遠距(ju)離傳(chuan)輸。由于(yu)稱(cheng)(cheng)(cheng)重傳(chuan)感(gan)器(qi)采用數(shu)(shu)字(zi)(zi)信號(hao)傳(chuan)遞，而(er)數(shu)(shu)字(zi)(zi)信號(hao)傳(chuan)遞是根(gen)據不同廠(chang)家(jia)規定(ding)的(de)不同通(tong)訊協議進行(xing)的(de)，要在數(shu)(shu)字(zi)(zi)稱(cheng)(cheng)(cheng)重傳(chuan)感(gan)器(qi)的(de)信號(hao)傳(chuan)輸上作(zuo)弊，則必須破譯廠(chang)家(jia)的(de)數(shu)(shu)字(zi)(zi)式(shi)(shi)稱(cheng)(cheng)(cheng)重傳(chuan)感(gan)器(qi)的(de)通(tong)訊協議才(cai)有(you)可能，因此，在數(shu)(shu)字(zi)(zi)式(shi)(shi)汽(qi)車衡(heng)上作(zuo)弊的(de)可能性(xing)很小。目前(qian)，有(you)些廠(chang)家(jia)生產的(de)稱(cheng)(cheng)(cheng)重顯示(shi)儀表可對數(shu)(shu)字(zi)(zi)式(shi)(shi)傳(chuan)感(gan)器(qi)信號(hao)實(shi)時(shi)檢測，具(ju)有(you)防作(zuo)弊功能。
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