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Q :RFID 项目常见问题分析

A:
 一说到RFID,人们都会先想到标签的成本,国内的标准等问题,下面结合本人的经验和其他资料对RFID项目中常见的问题进行分析。不足之处,请大家指正。

应用于开环还是闭环?

  企业采用RFID满堂彩可分为闭环应用和开环应用两种,闭环应用(指在公司内部使用)和开环应用(使应用于整个供应链,其协同合作的要求更高,可能包括包装供应商、合约制造商、第三方物流公司和零售商等)。内部闭环系统的特点是很好的入门选择,因为公司可以回避行业标准及与外部合作伙伴同步等问题。现在主要的RFID应用还都是闭环应用,开环应用将带来巨大的收益,但实施的难度和成本也很大。当前主要的开环应用是沃尔玛等零售商所实施的RFID项目,但也仅涉及到零售商-供应商价值链的运送环节,供应商被要求在送往沃尔玛店铺的每一个货盘上使用RFID标签。

RFID标准问题

  rfidyingyongshejidaohenduojishu,yejiushejidaoyixiliedebiaozhunwenti,congwuxiandianpinlv,shujugeshi,bianmadeng。muqian,rfidhaiweixingchengtongyidequanqiuhuabiaozhun,shichangweiduozhongbiaozhunbingcundejumian,dansuizhequanqiuwuliuxingyerfiddaguimoyingyongdekaishi,rfidbiaozhundetongyiyijingdedaoyejiedeguangfanrentong。rfidxitongzhuyaoyoushujucaijihehoutaishujukuwangluoyingyongxitongliangdabufenzucheng。muqianyijingfabuhuozheshizhengzaizhidingzhongdebiaozhunzhuyaoshiyushujucaijixiangguande,qizhongbaokuodianzibiaoqianyuduxieqizhijiandekongqijiekou、duxieqiyujisuanjizhijiandeshujujiaohuanxieyi、rfidbiaoqianyuduxieqidexingnengheyizhixingceshiguifan、yijirfidbiaoqiandeshujuneirongbianmabiaozhundeng。houtaishujukuwangluoyingyongxitongmuqianbingmeiyouxingchengzhengshideguojibiaozhun,zhiyoushaoshuchanyelianmengzhidingleyixieguifan,xianjieduanhaizaibuduanyanbianzhong。

  rfidbiaozhunzhengduodehexinzhuyaozairfidbiaoqiandeshujuneirongbianmabiaozhunzheiyilingyu。muqian,xingchenglewudabiaozhunzuzhi,fenbiedaibiaoleguojishangbutongtuantihuozheguojiadeliyi。epc globalshiyoubeimeiuccchanpintongyibianmazuzhiheouzhoueanchanpinbiaozhunzuzhilianhechengli,zaiquanqiuyongyoushangbaijiachengyuan,dedaolelingshoujutouwoerma,zhizaoyejutouqiangsheng、baojiedengkuaguogongsidezhichi。eraim、iso、uidzedaibiaoleoumeiguojiaheriben;ip-xdechengyuanzeyifeizhou、dayangzhou、yazhoudengguojiaweizhu。bijiaoeryan,epc globalyouyuzonghelemeiguoheouzhouchangshang,shilixiangduizhanshangfeng。

满堂彩   dangqianguojishangzaiuhf(chaogaopin)pinduanderfidzhuyaojishushiyong860mhz~960mhzpinduan。suoweidebiaozhunzhizheng,zhuyaoyeshizhizaizheiyipinduanxiadebiaozhunzhengduo。yinweitazuijuyoushiyongyuguojijianwuliuguanlidetexing。suiranmantangcaiguodebiaozhunhaimeiyouzhengshifabu(jushuo,guojiayijingpizhunguangdongshidiancaiyong917-925mhzpinduan),danyouyumuqianguoneiderfidyingyongdoushibihuanxiadeyingyong,suoyibiaozhunyijingbushizhangai。

RFID和条形码如何共存?

满堂彩   zaihenzhangshijiannei,tiaomaherfidjiangchuyugongcundezhuangtai。muqian,dianzibiaoqiandeyingyonglingyuzhuyaohaishijizhuangxiang、huopan,baozhuangxiang,huodanpinjiazhijiaogaodeshangpin(ruhpzaidayinjishangtierfidbiaoqian)。yigedianzibiaoqiandechengbendayuezai20zhi25meifenzhijian,jishibijiaoleguandeguji,zaiweilai3nianzhi5nianjianyigedianzibiaoqiandechengbenjiangdao1zhi5meifen,yutiaoxingmajididechengbenxiangbi,dianzibiaoqianrengbukenengzaiduanqineiqudaitiaoma。

满堂彩   suoyi,zaixianzaiderfidxiangmuzhong,yibandouhuitongshiyourfidbiaoqianhetiaomacunzai,jitongshitieshangrfidbiaoqianhetiaoma。suoyiyejiutongshiyaoyourfidyueduqihetiaomasaomiaoshebeicunzai。bingqieyaokaolvrfidbiaoqianhetiaomabiaoshizhijiandezhuanhuanwenti。epcbianmahetiaomacaiyongdedoushiean.uccbianma。tamenhenrongyijinxingzhuanhuan。

  yigejianadagongsi-intellettofabuletiaomayurfidgongcundejiefangan,bingyanzhichuxiangyingdezhongduanshebei,tamendeshejisiluqiaomiao,zaihenduolingyuyouzheguangfandeyingyongheshichang。

采用EPC编码还是自定义编码?

  沈阳RFID标签满堂彩上可以保存任何格式的数据,GEN1最高是128位,GEN2是256位,所以你可以在 RFID标签上保存符合EPC格式的编码,也可以保存你自己定义的数据。只要不超过最高长度就可以。通常的做法是,在 RFID标签上只保存唯一的标识,而其对应的数据保存在后台的数据中。

  lingyigewentishizaibiaoqianshangshizhibaocunbianmahaishiyebaocunqitashuju,zhibaocunbianmashideyaochaxunshishujukucainengbabiaoqianshangdebiaoshitongjutideyewuxinxilianxiqilai,rutiegaibiaoqiandewupinsuoduiyingdechanpinmingcheng,shengchanriqi,zhizaoshangdeng。erruguozaibiaoqianshangbaocunzheixieshuju,zebuxuyaochaxunshujukujiukeyizhijiexianshihuoshiyong。

如何实现100%的识别率?

  很多技术都不是100%的可靠,但并不影响满堂彩使用它,如PC等。同样,RFID阅读器现在也无法保证100%读取的标签,但满堂彩可以通过好的流程设计或补偿流程来实现100%的识别率。具体请参考下面这篇文章: http://www.epcglobal.org.cn/ziliaoku/index.aspx上的: 《EPC识读率不足100%的弥补方法》

使采集的数据作用最大化

  ruguobuduiyueduqiduqudeshujujinxingchuli,fenxi,jiuwufachanshengshouyi,suoyirfidxiangmuyingchongfenliyongcaijidaodeshuju,jiangbiaoqianshujuheyewushuju,yewuliuchengjiehe,bingtonghouduandeitxitongjicheng,jiangshujurongruerp,b2b,bi,dss,crmdengxitong,shixianshujudekejianxingheliuchengdezidonghua,tigaoxiaolv,jiangdichengben。

  muqian,zaikaihuangongyinglianxinxibiaozhunyingyongkuifadeqingkuangxia,henduobihuanrfidyingyongjiuguanzhulezheidian。birushuoribenheshanghaiyixiefuzhuangdiancaiyongrfidjishudecrmkehuguanxiguanlixitong、beijinggongrentiyuchangrfidmenpiaoxitong,jiangrfidxinxiyugukexinxi、jifenxinxishenzhigukedexingzouluxianxinxijieheqilai,chuangzaogengjialiangshendingzuodecrmxitong,zengqiangkehudeyouzhimantangcaitiyan。

  biaoqianheyueduqijingchangbeicuorenweishiepc/rfiddeyewumubiao。danshishishang,epc/rfiddeyewumubiaoshenruqiyeneibu,zhiyoubayuanshishujuyingyongyuqiyegongzuoliuchengzhongcaiyouyiyi。hpfuzongcailampmanzaidisanjieepc/rfidgaocengluntanshangjieshaohpderfidjingyanshicengshuo: “caiyongrfidjishuhuodedehuibaoyuzaizhenggeliuchengzhongyongzheizhongbiaoqianxinxidecishuchengzhengbi。”yejiushishuo,qiyegengyingguanzhunengshiepc/rfidshujuyingyongyuzhenggeyewuliuchengdeyingyong,bunengjinjinjiandandejiangrfidbiaoqian“jipaijifa” ,zailiuchengzhongduquepc/rfidshujudecishuyueduo、yongzheixieshujufenxibingzhidaoyewushijianyueduo,nideqiyehuibaoyueduo。

  zaiweilaikaihuangongyinglianzhong,qiyedeshenjingwangluoyounengliyanshendaozhenggegongyinglianquanliucheng,anzhuanglerfid/epczheigeshishide“qianliyan”he“shunfenger”,qiyededanao――erp、bijiangshishihudongqilai。zhengrumantangcairenyiyang,duoduduokancaihuiduosikao,rfid/epcdailaidehailiangshishishujuhuiyouzhuyujuececengzuochugengyouxiaodepanduan。tongguorfid/epcweimantangcaidailaide“xijieshuju”,changjiakeyigengjiajingyihuashengchan、shangjiakeyigengjiatitiedexijieguanhuai、wuliupeisonggengjiajishi。

具体请参考下面这篇文章: http://rfidinfo.com.cn/tech/RFexpert/200605/3438.html上的: 《EPC/RFID实施中的三个标准化维度》

RFID中间件的重要作用

  rfidzhongjianjian(jirfid edge server)shiepcglobaltuijianderfidyingyongkuangjiazhongxiangdangzhongyaodeyihuan,tafuzeshixianyurfidyingjianyijipeitaoshebeidexinxijiaohuheguanli,tongshizuoweiyigeruanyingjianjichengdeqiaoliang,wanchengyushangcengfuzayingyongdexinxijiaohuan。muqian,epcglobalyituichuxiangyingdeguifan(ale,yingyongjibieshijian)laitongyiheguifanhuazheiyicengmianderuanjianshixian。

  rfidzhongjianjianqidaoyigezhongjiedezuoyong,tapingbiqianduanyingjiandefuzaxing,bingbacaijideshujufasongdaohouduandeitxitong。chulerfidzhongjianjian,duiyigefuzadeyingyong,haixuyaoqitaruanjian,caizuizuidadefahuirfiddezuoyong。shiroizuidahua。ruxiatu,weibeasuotigongdewanzhengderfidruanjianjiejuefangan.congrfidshujudeduqu,baocun,chuli,fenxi,daoqitayingyongxitongdejicheng。tongguomenhujinxingfangwenkongzhideng.

 

如何管理这么多的硬件设备?

  与其他IT项目不一样的是,在RFID项目中有大量的硬件设备,如阅读器,RFID打印机条码扫描设备满堂彩,同时,还会有很多其他的PLC设备,如LED显示屏,信号灯,传感器等。如果管理,配置,监控这些设备。如何集成这些设备,使它们在一起工作,优化数据采集流程。这就要靠RFID中间件。如下图,BEA RFID中间件提供驱动程序屏蔽这些硬件的复杂性。

 

RFID项目的成本分析

  一说到RFID项目的成本,很多人马上想到标签的成本,并认为它是最重要的因素。其实这是不对的,首先,现在一般都是对可复用的资产贴标签。如物流领域的集装箱、货盘等,资产管理中的高价值物品等,标签是可以被重复使用。另外和这些物品本身的价值相比,标签的价格也可以忽略。

满堂彩   ru: tntgongsizhongguoqushouxixinxiguan(cio)mixieer·hamen(michiel haarman)jiuburenweirfidbichuantongbiaoqiangui。tafenxi: tiaoxingmasaomiaoqixuyao1,500meiyuan,shiyongshoumingdagai2nian,errfidduquqichengben4,000meiyuan,keyishiyong5~7nian,yibanbiaoqianjiagexianzaibudao0.2meiyuan。suoyihamenbiaoshi,zonggongsuanxialai,rfiddeyingjianheruanjianshishichengbenbuyidinggaoyutiaoxingma,erqierfidhainengjieshengrenlichengben。

满堂彩   hangzhoujuanyanchangdeyesuanlebizhang: xianzaihangzhoujuanyanchangyongzaituopanshangdebiaoqianchengbenshi40duoyuanrenminbi,yinweituopanhebiaoqiandoukeyihuishou,ruguoanzhao8,000getuopansuandehua,guangbiaoqiandagaixuyao30duowanyuandebiaoqianchengbentouru。tuopanjianghuowuyundaoxiaoshouqiyehou,huishoudebiaoqianlideshujukeyiqingchubingzhongxinduxie,jinruxiayicixunhuan。xiangbihangzhoujuanyanchang2005nian500wandaxianghuopindexiaoshoulianghe100yiyuanzuoyoudexiaoshoue,rfiddetouruchengbenkeyijieshou。

  yutiaoxingmajishubutongdeshi,rfidbiaoqiandexinxikexieru10wanci。liyongzheiyitedian,zaiqiyeneibuwuliuzhongbihuanshiyongrfidbiaoqian,bujinnengchongfenfahuirfiddejishuyoushi,erqieqiyunxingchengbenhaijiangdiyutiaoxingma。xiancongbihuanyingyongkaishi,qiyejiunengdaporfidbiaoqiandejiagepingjing。

满堂彩    guoneiqiyeshirfidbiaoqianchengbenweiweitu,dananzhaoguowaijiyoujingyan,biaoqianchengbenzhishibushurfidxiangmuzhuduokunnanzhongbingshanyijiaoeryi。qiyeyinggaikaolvdaogengdicengdewenti,biru,biaozhunhezhongjianjianlianjie、xitongzhenghe、liuchengyouhuadengdeng。

 

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