一、條碼讀取器是什么

條碼是一種用線條和線條之間的間隔按照一定的規則表示數據的條形符號，條碼讀取器指的是用來讀取條碼信息的設備。

條碼讀取(qu)(qu)器的的使用在現在市面上(shang)非常多，它能集成條碼讀取(qu)(qu)和(he)信息(xi)處(chu)理。能夠(gou)滿足(zu)各行各業企(qi)業內部(bu)數(shu)據(ju)采(cai)集處(chu)理等(deng)需求(qiu)。完成數(shu)據(ju)一體化管(guan)理，為企(qi)業的數(shu)字化轉型奠定基礎。

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二、條碼讀取器原理介紹

前文已經簡單了(le)解了(le)碼(ma)讀取器是(shi)什么，那么它是(shi)怎么讀取條碼(ma)的(de)呢？一(yi)起來(lai)看(kan)看(kan)條碼(ma)讀取器原理介紹吧！

它使(shi)用一(yi)個光(guang)(guang)(guang)(guang)(guang)(guang)學裝(zhuang)置(zhi)將條碼的(de)(de)(de)(de)(de)(de)條空信(xin)(xin)(xin)(xin)息(xi)轉(zhuan)(zhuan)換(huan)成電(dian)(dian)(dian)(dian)(dian)(dian)子信(xin)(xin)(xin)(xin)息(xi)，再由專用譯碼器翻譯成相應的(de)(de)(de)(de)(de)(de)數據信(xin)(xin)(xin)(xin)息(xi)。由于(yu)不(bu)同(tong)顏色的(de)(de)(de)(de)(de)(de)物體(ti)，其反(fan)(fan)射(she)的(de)(de)(de)(de)(de)(de)可見(jian)光(guang)(guang)(guang)(guang)(guang)(guang)的(de)(de)(de)(de)(de)(de)波(bo)長不(bu)同(tong)，白色物體(ti)能反(fan)(fan)射(she)各種波(bo)長的(de)(de)(de)(de)(de)(de)可見(jian)光(guang)(guang)(guang)(guang)(guang)(guang)，黑(hei)色物體(ti)則吸收(shou)各種波(bo)長的(de)(de)(de)(de)(de)(de)可見(jian)光(guang)(guang)(guang)(guang)(guang)(guang)，所以當條碼掃描器光(guang)(guang)(guang)(guang)(guang)(guang)源發出的(de)(de)(de)(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)經(jing)光(guang)(guang)(guang)(guang)(guang)(guang)闌及凸(tu)透鏡1后，照射(she)到(dao)黑(hei)白相間的(de)(de)(de)(de)(de)(de)條碼上時，反(fan)(fan)射(she)光(guang)(guang)(guang)(guang)(guang)(guang)經(jing)凸(tu)透鏡2聚焦后，照射(she)到(dao)光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)換(huan)器上，于(yu)是(shi)光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)換(huan)器接(jie)收(shou)到(dao)與白條和黑(hei)條相應的(de)(de)(de)(de)(de)(de)強弱(ruo)不(bu)同(tong)的(de)(de)(de)(de)(de)(de)反(fan)(fan)射(she)光(guang)(guang)(guang)(guang)(guang)(guang)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)，并(bing)轉(zhuan)(zhuan)換(huan)成相應的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)輸出到(dao)放(fang)(fang)(fang)大整(zheng)形(xing)電(dian)(dian)(dian)(dian)(dian)(dian)路。白條、黑(hei)條的(de)(de)(de)(de)(de)(de)寬度不(bu)同(tong)，相應的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)持續時間長短也不(bu)同(tong)。但是(shi)，由光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)換(huan)器輸出的(de)(de)(de)(de)(de)(de)與條碼的(de)(de)(de)(de)(de)(de)條和空相應的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)一(yi)般僅10mV左右，不(bu)能直接(jie)使(shi)用，因而先(xian)要將光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)換(huan)器輸出的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)送放(fang)(fang)(fang)大器放(fang)(fang)(fang)大。放(fang)(fang)(fang)大后的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)仍(reng)然是(shi)一(yi)個模擬(ni)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)，為了避免(mian)由條碼中(zhong)的(de)(de)(de)(de)(de)(de)疵點和污點導致錯誤信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)，在放(fang)(fang)(fang)大電(dian)(dian)(dian)(dian)(dian)(dian)路后需加一(yi)整(zheng)形(xing)電(dian)(dian)(dian)(dian)(dian)(dian)路，把模擬(ni)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)轉(zhuan)(zhuan)換(huan)成數字電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)，以便計算機系統(tong)能準確判讀。

整形電(dian)路(lu)的(de)(de)(de)脈沖數字(zi)(zi)(zi)信(xin)(xin)號經譯(yi)(yi)碼(ma)(ma)器(qi)譯(yi)(yi)成(cheng)數字(zi)(zi)(zi)、字(zi)(zi)(zi)符(fu)信(xin)(xin)息(xi)。它通過(guo)識別(bie)起(qi)始、終止字(zi)(zi)(zi)符(fu)來判別(bie)出條(tiao)(tiao)碼(ma)(ma)符(fu)號的(de)(de)(de)碼(ma)(ma)制及(ji)掃描方(fang)向；通過(guo)測量脈沖數字(zi)(zi)(zi)電(dian)信(xin)(xin)號0、1的(de)(de)(de)數目來判別(bie)出條(tiao)(tiao)和(he)空(kong)的(de)(de)(de)數目。通過(guo)測量0、1信(xin)(xin)號持續的(de)(de)(de)時(shi)間(jian)來判別(bie)條(tiao)(tiao)和(he)空(kong)的(de)(de)(de)寬度。這樣便(bian)得到了(le)被辯讀(du)的(de)(de)(de)條(tiao)(tiao)碼(ma)(ma)符(fu)號的(de)(de)(de)條(tiao)(tiao)和(he)空(kong)的(de)(de)(de)數目及(ji)相應(ying)的(de)(de)(de)寬度和(he)所用碼(ma)(ma)制，根據碼(ma)(ma)制所對應(ying)的(de)(de)(de)編碼(ma)(ma)規(gui)則，便(bian)可將(jiang)條(tiao)(tiao)形符(fu)號換(huan)成(cheng)相應(ying)的(de)(de)(de)數字(zi)(zi)(zi)、字(zi)(zi)(zi)符(fu)信(xin)(xin)息(xi)，通過(guo)接口電(dian)路(lu)送(song)給計算機(ji)系統(tong)進行數據處理(li)與管理(li)，便(bian)完成(cheng)了(le)條(tiao)(tiao)碼(ma)(ma)辨讀(du)的(de)(de)(de)全過(guo)程。