Wolemba: 梧桐
Malinga ndi Bluetooth SIG, mtundu wa Bluetooth 5.4 watulutsidwa, kubweretsa mulingo watsopano wama tag amitengo yamagetsi.Zimamveka kuti kusinthika kwaukadaulo wokhudzana, kumbali imodzi, mtengo wamtengo pamaneti amodzi ukhoza kukulitsidwa mpaka 32640, komano, chipatacho chimatha kuzindikira kulumikizana kwanjira ziwiri ndi mtengo wamtengo.
Nkhaniyi imapangitsanso anthu kukhala ndi chidwi ndi mafunso angapo: Kodi luso laukadaulo mu Bluetooth yatsopano ndi chiyani?Kodi zimakhudza bwanji kugwiritsa ntchito ma tag amitengo yamagetsi?Kodi idzasintha mawonekedwe a mafakitale omwe alipo?Chotsatira, pepala ili lidzakambirana zomwe zili pamwambazi, mchitidwe wa chitukuko chamtsogolo cha ma tag amtengo wamagetsi.
Apanso, Zindikirani Mtengo Wamtengo Wamagetsi
Mtengo wamtengo wamagetsi, LCD ndi chipangizo chowonetsera mapepala apakompyuta chomwe chili ndi ntchito yotumiza ndi kulandira zidziwitso, kudzera mukulankhulana opanda zingwe kuti mukwaniritse kusintha kwa chidziwitso cha mtengo.Chifukwa imatha kulowa m'malo mwa mtengo wanthawi zonse, kuphatikiza kugwiritsa ntchito mphamvu zochepa (inki skrini yamagetsi yamtengo wamagetsi yokhala ndi mabatire a 2 imatha kupirira zaka zopitilira 5), imakondedwa ndi ambiri opanga malonda.Pakalipano, wakhala akugwiritsidwa ntchito kwambiri mu malonda apakhomo ndi akunja odziwika bwino ogulitsa malonda monga Wal-Mart, Yonghui, Hema Fresh, Mi kunyumba ndi zina zotero.
Ndipo chizindikiro cha mtengo wamagetsi si chizindikiro chabe, koma dongosolo lonse kumbuyo kwake.Nthawi zambiri, makina amtundu wamagetsi amaphatikizapo magawo anayi: tag yamtengo wamagetsi (ESL), ma waya opanda zingwe (ESLAP), tag yamtengo wamagetsi SaaS system ndi handheld terminal (PDA).
Mfundo yogwiritsira ntchito dongosololi ndi: kugwirizanitsa chidziwitso cha katundu ndi mtengo pa nsanja ya SaaS cloud, ndi kutumiza chidziwitso ku mtengo wamtengo wamagetsi kudzera pa siteshoni ya ESL.Mukalandira zambiri, mtengo wamtengowo ukhoza kuwonetsa zambiri zamtengo wapatali monga dzina, mtengo, chiyambi ndi ndondomeko mu nthawi yeniyeni.Momwemonso, zambiri zamalonda zitha kusinthidwanso popanda intaneti poyang'ana kachidindo kazinthuzo kudzera pa PDA yogwira m'manja.
Pakati pawo, kufalikira kwa chidziwitso kumadalira ukadaulo wolumikizirana opanda zingwe.Pakalipano, pali njira zitatu zoyankhulirana zomwe zimagwiritsidwa ntchito pamtengo wamtengo wapatali wamagetsi: 433 MHz, 2.4GHz yachinsinsi, Bluetooth, ndipo iliyonse mwazinthu zitatuzi ili ndi ubwino ndi zovuta zake.
Chifukwa chake, Bluetooth ndi imodzi mwazinthu zodziwika bwino, koma kwenikweni, pamsika, kugwiritsa ntchito kwa Bluetooth ndi 2.4GHz kwachinsinsi kuli kofanana.Koma tsopano Bluetooth kwa opatsidwa magetsi mtengo kukhazikitsa muyezo watsopano, sikovuta kuona, ndi kulanda pakompyuta mtengo tag izi ntchito msika kwambiri.
Chatsopano ndi chiyani ndi muyezo wa Bluetooth ESL?
Pakadali pano, malo ofikirako masiteshoni a ESL ali pakati pa 30-40 metres, ndipo kuchuluka kwa ma tag omwe atha kukhala kumasiyana ndi 1000-5000.Koma malinga ndi Bluetooth Core Specification Version 5.4 yaposachedwa, mothandizidwa ndi ukadaulo watsopano, maukonde amatha kulumikiza zida za 32,640 ESL, kuphatikiza pakukwaniritsidwa kwa zida za ESL ndi kulumikizana kwapanjira ziwiri.
Bluetooth 5.4 imasintha zinthu ziwiri zokhudzana ndi ma tag amitengo yamagetsi:
1. Kutsatsa Kwanthawi ndi Mayankho (PAwR, kutsatsa kwanthawi ndi nthawi ndi mayankho)
PAwR ilola kukhazikitsidwa kwa netiweki ya nyenyezi yokhala ndi njira ziwiri zolumikizirana, zomwe zimawonjezera kuthekera kwa zida za ESL kulandira deta ndikuyankha kwa wotumiza.Kuonjezera apo, zipangizo za ESL zikhoza kugawidwa m'magulu angapo, ndipo chipangizo chilichonse cha ESL chimakhala ndi adiresi yapadera kuti apititse patsogolo kugwirizana ndikuthandizira kulankhulana kwa wina ndi mzake.
Pachithunzichi, AP ndiye wowulutsa PAwR;ESL ndi mtengo wamtengo wamagetsi (wa GRPS wosiyana, wokhala ndi ma ID osiyana);subevent ndi subevent;rsp slot ndiye poyankha.Pachithunzichi, mzere wakuda wopingasa ndi AP kutumiza malamulo ndi mapaketi ku ESL, ndipo mzere wofiira wopingasa ndi ESL yoyankha ndikudyetsa ku AP.
Malinga ndi Bluetooth Core Specification Version 5.4, ESL imagwiritsa ntchito adilesi ya chipangizo (binary) yokhala ndi ma ID a 8-bit ESL ndi ma 7-bit gulu.Ndipo ID ya ESL ndi yapadera m'magulu osiyanasiyana.Chifukwa chake, netiweki ya chipangizo cha ESL imatha kukhala ndi magulu a 128, iliyonse yomwe imatha kukhala ndi zida za 255 zapadera za ESL za mamembala agululo.Mwachidule, pakhoza kukhala zida zonse za 32,640 ESL pamaneti, ndipo chizindikiro chilichonse chikhoza kuwongoleredwa kuchokera kumalo amodzi.
2. Zotsatsa Zosungidwa Mwachinsinsi (EAD, Zotsatsa Zobisika)
EAD makamaka imapereka ntchito zoulutsira deta.Deta yowulutsa ikasungidwa, imatha kulandiridwa ndi chipangizo chilichonse, koma imatha kusinthidwa ndikutsimikiziridwa ndi chipangizo chomwe chidagawana kale kiyi yolumikizirana.Phindu lalikulu la izi ndikuti zomwe zili m'mapaketi owulutsa zimasintha pomwe adilesi ya chipangizocho ikusintha, kuchepetsa mwayi wotsata.
Kutengera ndi zomwe zili pamwambazi zakusintha, Bluetooth ikhala yopindulitsa kwambiri pazomata zamagetsi.Makamaka poyerekeza ndi 433MHz ndi 2.4GHz payekha, alibe miyezo yolankhulirana yapadziko lonse lapansi, kutheka, kukhazikika, chitetezo sichingatsimikizidwe bwino, makamaka pankhani ya chitetezo, kuthekera kofotokozera kudzakhala kwakukulu.
Ndikufika kwa muyezo watsopano, makampani opanga mtengo wamagetsi amathanso kuyambitsa kusintha kwina, makamaka opanga ma module olankhulana ndi opereka mayankho pakatikati pamakampani.Kwa opanga mayankho a Bluetooth, ngati athandizira zosintha za OTA zazinthu zogulitsidwa komanso ngati awonjezere Bluetooth 5.4 pamzere watsopano wazogulitsa ndi funso lomwe liyenera kulingaliridwa.Ndipo kwa opanga mapulogalamu omwe si a Bluetooth, ngati asintha chiwembu chachikulu kuti agwiritse ntchito Bluetooth ndizovuta.
Koma kachiwiri, kodi msika wamtengo wamagetsi ukukula bwanji masiku ano, ndipo zovuta zake ndi zotani?
Kukula kwa msika wamitengo yamagetsi ndi zovuta
Pakadali pano, kudzera mumakampani akumtunda omwe amatumizidwa ndi e-mapepala amatha kudziwika, kutumiza kwamtengo wamtengo wamagetsi kwatha chaka ndi chaka.
Malinga ndi lipoti la Lotu's Global ePaper Market Analysis Quarterly Report, ma module a e-paper 190 miliyoni adatumizidwa padziko lonse lapansi m'magawo atatu oyambirira a 2022, kufika 20.5% kuchokera nthawi yomweyi chaka chatha.Pazinthu zamapepala apakompyuta, kutumizidwa padziko lonse kwa zilembo zamagetsi m'magawo atatu oyambirira anafika zidutswa za 180 miliyoni, ndikukula kwa chaka ndi 28,6%.
Koma ma e-tag tsopano akulowa m'mavuto pakupeza phindu lowonjezereka.Popeza zolemba zamagetsi zimadziwika ndi moyo wautali wautumiki, zidzatenga zaka 5-10 kuti zilowe m'malo mwawo, kotero sipadzakhala m'malo mwa katundu kwa nthawi yaitali, kotero tikhoza kuyang'ana msika wowonjezera.Vuto, komabe, ndikuti ogulitsa ambiri safuna kusintha ma tag amtengo wamagetsi."Ogulitsa ena akhala akuzengereza kutengera ukadaulo wa ESL chifukwa chodera nkhawa za kutseka kwa mavenda, kugwirizana, kusanja komanso kuthekera kowonjezera kuzinthu zina zanzeru," atero Andrew Zignani, Woyang'anira Kafukufuku ku ABI Research.
Mofananamo, mtengo ulinso vuto lalikulu.Ngakhale mtengo wamtengo wamtengo wamagetsi wasinthidwa kwambiri kuti uchepetse ndalama zambiri zoyika, umagwiritsidwabe ntchito ndi masitolo akuluakulu monga Walmart ndi Yonghui pamsika wogulitsa.Kwa masitolo ang'onoang'ono ammudzi, masitolo osavuta komanso ogulitsa mabuku, mtengo wake udakali wokwera kwambiri.Ndipo ndiyenera kunena kuti ma tag amtengo wamagetsi amafunikiranso m'masitolo omwe siakuluakulu.
Komanso, zochitika zamakono zogwiritsira ntchito ma tag amtengo wamagetsi ndizosavuta.Pakalipano, 90% ya zizindikiro zamtengo wapatali zamagetsi zimagwiritsidwa ntchito m'magulu ogulitsa, koma zosakwana 10% zimagwiritsidwa ntchito muofesi, zamankhwala ndi zochitika zina.SES-imagotag, chimphona pamakampani opanga mtengo wa digito, amakhulupirira kuti mtengo wa digito suyenera kungokhala chida chowonetsera mtengo, koma uyenera kukhala microweb ya data omnihanatic yomwe ingathandize ogula kupanga zisankho ndikupulumutsa mabwana ndi antchito nthawi. ndi mtengo.
Komabe, palinso uthenga wabwino kuposa zovutazo.Kulowa kwa ma tag amtengo wamagetsi pamsika wapanyumba ndi ochepera 10%, zomwe zikutanthauza kuti pali msika wambiri womwe uyenera kugulidwa.Panthawi imodzimodziyo, ndi kukhathamiritsa kwa ndondomeko yoyendetsera miliri, kubwezeretsanso kugwiritsira ntchito ndizochitika zazikulu, ndipo kubwezeranso kubweza kwa mbali ya malonda kukubweranso, womwenso ndi mwayi wabwino kwa ma tag amtengo wamagetsi kufunafuna kukula kwa msika.Kuphatikiza apo, osewera ambiri pamakampani akuyika ma tag amitengo yamagetsi, Qualcomm ndi SES-imagotag akugwirizana pamitengo yokhazikika yamagetsi.M'tsogolomu, pogwiritsa ntchito zipangizo zamakono komanso machitidwe okhazikika, ma tag amtengo wamagetsi adzakhalanso ndi tsogolo latsopano.
Nthawi yotumiza: Feb-21-2023