Kwiinyanga ezimbini ezidlulileyo, udederhu lweevenkile{0} zobukhulu obuphakathi kuMazantsi eYurobhu asicele ukuba sicaphule ukukhutshwa kweleyibhile yeshelufu yombane kwiivenkile ezingama-22. Iqela labo lokuthenga lalisele ligxunyekiwe iinkqubo ezintathu ezahlukeneyo - enye isebenzisa iBluetooth LE, enye kwi-Wi{4}} Fi, kunye nenye kwirediyo ye-433 MHz. Umthengisi ngamnye wathi eyakhe yeyona ilungileyo. Akukho namnye owachazayo phantsi kweziphi iimeko eneneni eyona yayimbi kakhulu. Loo ncoko yasiqinisekisa ukuba sibhale esi siqwenga.
Iintsapho ezintathu zeprothokholi ezingasebenzi ngeengcingo zilawula ukuthunyelwa kwe-ESL ngoku: IBluetooth Low Energy (BLE, ingakumbi ukususela ku-5.4 ingcaciso), Wi-Fi, kunye ne-Sub-GHz unomathotholo (433 MHz e-Asia, 868 MHz eYurophu, 915 MHz eMntla Melika). Iprotocol nganye isombulula ingxaki yokwenyani. Ngamnye udala i-tradeoffs ukuba iincwadana zabathengisi zidlala ngaphantsi. Nantsi into esiyibonileyo kwiindawo zokwenyani zevenkile.
IBluetooth LE: Vula iMigangatho, isakhula kwisikali
IBluetooth inomfutho onzulu emva kwayo. I-Bluetooth SIG ipapashe iProfayili ye-ESL ezinikeleyo eyakhelwe kwi-Bluetooth 5.4's PAwR (iNtengiso ngamaXesha athile kunye neeMpendulo) isici - isixhobo esivumela indawo yokufikelela enye yokusasaza imiyalelo kumawaka eelebhile kwiindawo zokubeka ixesha ezicwangcisiweyo, emva koko ufumane iimpendulo ngaphandle kokuseka unxibelelwano lomntu ngamnye.
I-Silicon Labs ivavanye oku kwi-1,500{6}}yenethiwekhi yendawo kwilebhu yabo. I-EM Microelectronic ithumele i-em|bleu SoC nge-1.8 × 1.8 mm nje ene-200 nA ubuthongo obunzulu ngoku-incinci ngokwaneleyo kwaye yonga ngokwaneleyo ukuba ingene ngaphakathi.compact 2.66 -intshi ye tags E-inki. Ngaphezulu kwe-5 yeebhiliyoni zezixhobo zeBluetooth ezithunyelwa ngonyaka, iindleko zecandelo zixhamla kuqoqosho olukhulu lobungakanani.
Kubathengisi, i-practical upside yi-flexibility yomthengisi. Umgangatho ovulekileyo uthetha - ubuncinci ngokomgaqo - ukuba ungaxuba iindawo zofikelelo kumthengisi omnye oneeleyibhile ezisuka komnye. Olo luhambo olunentsingiselo kwisitshixo somthengisi{4}}esithwaxe i-ESL iminyaka. Imisinga yokulala engaphantsi kwe-2 µA iqhelekile kwiichipsets ze-BLE ESL, kwaye i-Bluetooth 5.4 spec ixhasa iilebhile eziqikelelwa kuma-32,600 kwindawo yofikelelo kwinethiwekhi nganye ephepheni.
Ukubamba: "ephepheni" ibalulekile apha. Enkulu-ukuhanjiswa kwegrosari kwi-BLE kusekuncinci xa kuthelekiswa neenkqubo zobunini ebeziqhuba ishumi leminyaka. I-Rigado, umthengisi wesango le-IoT osebenzayo kwi-ESL, ubeka iindleko zesango lomntu ngamnye kwi-$1,000 ukuya kwi-$2,000 efakiweyo - kwaye ivenkile enkulu ingadinga ishumi nangaphezulu. I-BLE isebenza e-2.4 GHz, isabelana nge-spectrum nge-Wi{10}Fi routers, iifowuni zabathengi, ii-microwaves, kunye naso sonke esinye isixhobo esingenazingcingo esakhiweni. Kwivenkile exakekileyo, oko kuxinana kunokulibazisa uhlaziyo lwexabiso ngexesha leeyure eziphakamileyo.
Okona kufanelekileyo: ikhemesti, iivenkile, kunye{0}}nobukhulu beevenkile eziphakathi ngaphantsi kwe-2,000 m² - ngakumbi ezo sele zisebenzisa iibhikhoni ze-BLE zokujonga i-asethi. Ukufumana abathengisi5.8{1}intshi BLE-iileyibhile kwishelufu ekwaziyoolo hlaziyo olusuka kwithebhulethi ngaphandle kwesiseko esinzima luya kufumana le protocol inomtsalane.
Wi-Fi: Sebenzisa iNethiwekhi Yakho Ekhoyo - Kodwa Uhlahlo lwabiwo-mali lweebhetri
Umthamo uthe ngqo: ivenkile yakho sele iqhuba ishishini Wi{0}Fi kuyo yonke indlela, ke utsibe amasango amatsha kwaye uqhagamshele ii-ESL zakho ngqo kwinethiwekhi esele ikhona. Kwimixokelelwane yamashishini amakhulu asele etyale imali eninzi kwiindawo zokurhweba kunye ne-coverage epheleleyo, izibalo zokudibanisa zibukeka zikhangayo.
I-Wi{0}}i-Fi ikwanikezela ngedatha ephezulu kune-BLE okanye i-Sub-GHz. Olo ncedo lubonakala xa utyhala umxholo otyebileyo womzobo - imifanekiso yemveliso, oopopayi bentengiso - ukuyaI-LCD{0}esekwe kwizikrini zamaxabiso edijithalikunokuba E{0}}iithegi ze-inki ezilula. A15.6-intshi LCD screenUkuqhuba unyuso kwi endcap kufuna bandwidth leyo E{0}}iithegi inki amaxabiso musa.
Ingxaki ibonakala kwiindawo ezimbini. Okokuqala, ukusetyenziswa kwamandla. I-Wi{2}}i-Fi izoba ngoku kakhulu kune-BLE okanye i-Sub -GHz ngexesha lomjikelo ngamnye wothumelo. Ileyibhile ye-E-ye-inki kwi-Sub-GHz inomathotholo ingaqhuba iminyaka emihlanu ukuya kwesibhozo kwingqekembe yeseli enohlaziyo lwemihla ngemihla olunye ukuya kwemithathu. Ileyibhile efanayo kwi-Wi{8}}Fi? Iinyanga ezilishumi elinesibini ukuya kwishumi elinesibhozo. Esikalini - amawaka eelebhile kwiivenkile ezininzi - oko kuthetha ukuba inkqubo yokubuyisela ibhetri ephinda-phindayo iqela lakho elisebenzayo kufuneka libe nayo. Okwesibini, ukuxinana kwenethiwekhi. I-Wi{14}Fi ESLs zikhuphisana ngexesha lomoya kunye ne-POS iitheminali, izixhobo zabathengi, iiskena eziphathwa ngesandla, kunye{15}}nendawo yokuphuma yokuphuma. Ebudeni bencopho yasemva kwemini yangoMgqibelo, olo khuphiswano aluyiyo ithiyori.
Okona kulungileyo: abathengisi abakhulileyo,{0}}abanobunjineli beWi{1}Fi yeziseko zophuhliso, iivenkile ezisebenzisa amandla eLCD iimpawu zedijithali (apho ubomi bebhetri bungabalulekanga kuba izikrini ziplagiwe), kunye nokusasazwa okulinganiswa ngamakhulu kuneshumi lamawaka eelebhile.
I-Sub -GHz (433/868/915 MHz): Akukho Mkhamo, Uluhlu olude, ibhetri ende
I-Sub-GHz irediyo ayinawo umzimba wokuthengisa oyiphakamisayo ngendlela iintshatsheli zeBluetooth SIG BLE. Uninzi lweSub -GHz ESL iinkqubo zisebenzisa iiprothokholi zobunini ezithe ngqo kumenzi weelebhile. Akukho iprofayili yokusebenzisana. Ukutshintsha abathengisi kuthetha ukubuyisela yonke i-stack yonxibelelwano.
Kwaye okwangoku, kwiifomathi ezithile zevenkile, ifiziksi iyenza ibe lolona khetho lusebenzayo. Iifrikhwensi ezisezantsi zivelisa ubude bamaza amade. Amaza amade amade angena kwishelufa yesinyithi, iindonga zesahlulelo sekhonkrithi, kunye neemeko zokubonisa efrijini ngokusebenza ngakumbi kuneempawu ze-2.4 GHz. I-Display Data, i-UK{4} esekelwe kumboneleli we-ESL, bakhe iqonga labo lonke malunga ne-Sub{6}} 1 GHz kanye ngesi sizathu - uluhlu oluphezulu kunye nokungena komqondiso kwiindawo zokuthengisa ezintsonkothileyo. Indawo enye yofikelelo ye-Sub{9} GHz igquma inyawo elikhulu kune-BLE okanye i-Wi-Fi elingana nayo. Amanqaku okufikelela ambalwa athetha iindleko eziphantsi zeziseko zophuhliso kunye nesicwangciso esilula sothungelwano.
Ubomi bebhetri yenye into ebalulekileyo. Isikhokelo soyilo seSilicon Labs 'ESL sichaza ukuba ukufikelela kwiminyaka emihlanu ukuya kwelishumi kwiseli yengqekembe yeCR2032 kufuna i-avareji yohlahlo lwabiwo-mali lwangoku ngaphantsi kwe-10 µA - i-Sub-GHz FG22 SoC ifezekisa i-0.17 µA kubuthongo obunzulu. Kubaenkulu-ifomati E{1}}ielebhile ze-inkikwindawo yokugcina okanye ihypermarket enohlaziyo olunye ukuya kwezintathu yonke imihla, iSub -GHz ihlala inika obona bomi bude busebenzayo.
Okona kulungileyo: ii-hypermarkets kunye{0}}nabathengisi abakhulu beebhokisi ezingaphezu kwe-5,000 m², indawo yokugcina impahla kunye neendawo zothutho ezinophahla lwentsimbi, ikhonkco elibandayo kunye neendawo ezifakwe efrijini, kunye nakuphi na ukusasazwa apho ukunciphisa iziseko zophuhliso kunye nokwandisa ubomi bebhetri kuthatha indawo ephambili ngaphezulu kwe-bandwidth. Abathengi bethu bakhupha i-E{4}}iileyibhile ze-inki kwishelufu kwiivenkile ezinkulu-ezikhululo zihlala zitsalela kwi-Sub-GHz.
Ecaleni-nge{1}}Uthelekiso olusecaleni
| Metric | IBluetooth LE 5.4 | Wi{0}Fi | I-Sub -GHz (433/868/915 MHz) |
|---|---|---|---|
| Isebenza{0}kuluhlu lweVenkile | 10–30 m | 15–35 m | 50–200 m |
| UBomi bebhetri (E{0}}i-inki, 1–3 uhlaziyo/ngosuku) | 3-5 iminyaka | 1-2 iminyaka | 5-10 iminyaka |
| Ugqithiso lwedatha | Phakathi | Phezulu | Phantsi |
| Iileyibhile ngokweNdawo yokuFikelela | ~32,000 (spec) / amakhulu aqhelekileyo | Iyahluka ngomthamo we-AP | Amawaka ngesango ngalinye |
| Iindleko zesango (ifakiwe) | $1,000–$2,000 | Isebenzisa inethiwekhi ekhoyo | $500–$1,500 |
| 2.4 GHz Ungenelelo | Ewe | Ewe | Akukho - ibhendi eyahlukileyo |
| Vula uMgangatho | Ewe (BLE ESL Profile) | Ewe (802.11) | Ubukhulu becala |
| Eyona Fomathi Yevenkile | Iivenkile ezincinci-eziphakathi, iikhemesti | Ishishini eline-IT eyomeleleyo | Ii-hypermarkets, iindawo zokugcina iimpahla |
Iprotocol yokuKhetha iRipples ngeVenkile yakho yonke
Into ethile iphoswa ngamanqaku othelekiso lweprotocol: inethiwekhi yakho engenazingcingo ye-ESL ayisebenzi yodwa. Iindawo zokufikelela, i-backend yexabiso, isoftware yolawulo - yonke ichukumisa ezinye iinkqubo zedijithali evenkileni. Ukuba uyabalekangokwakho-inkonzo yesikrini esichukumisayo kwikhiyoskiukuze uphume, ezo kiosks zitsala amaxabiso kwindawo enye. Ukuba ishelufu -ibonisa ibar ye-LCD ye-edge iqhuba unyuso kwi-asile, i-injini yomxholo etyisa ezo zikrini inokwenza imikhankaso kwi-E{2}}iileyibhile ze-inki - kodwa kuphela ukuba iinkqubo zabelana nge-API umaleko ofanayo.
Siye sabona ezona ziphumo zicocekileyo xa abathengi becwangcisa ukuthunyelwa kwe-ESL kunye ne-kiosk yabo kunye nokukhutshwa kweempawu zedijithali, kungekhona njengeeprojekthi ezintathu ezahlukeneyo ze-IT. Xa ixabiso umthengi alibonayo kwithegi yeshelufu, i-endcap LCD yesikrini, kunye ne-self{1}}itheminali yokuphuma yonke isondlo ukusuka kumthombo omnye, izikhalazo zamaxabiso - eyona ndawo inkulu yokukhuhlana kwigrosari - yehle kufutshane ne-zero.
Imibuzo Emithathu Ngaphambi kokuba Uzibophelele
Ingaba isicwangciso sakho somgangatho sijongeka njani?Ikhemesti engama-400 m² kunye ne-12,000 m² hypermarket ziimeko ezahlukeneyo zikanomathotholo. I-BLE iphatha eyokuqala ngeendawo ezimbini okanye ezintathu zokungena. Eyesibini mhlawumbi idinga iSub -GHz ukunqanda ukungcolisa isilingi ngamasango.
Ngowuphi umxholo owubonisayo?Amaxabiso amileyo kwi-E{0}}inki? Nayiphi na iprotocol iyayiphatha loo nto. Iintengiso zevidiyo kwizikrini ze-LCD ezinamandla? Udinga iWi{2}Fi's throughput. Amaxabiso eflash atshintsha amaxesha amaninzi ngeyure? Qinisekisa iprotocol yakho inokugcina umthamo wohlaziyo ngaphandle kokukhupha iibhetri ngaphambi kwexesha.
Yintoni enye owabelana ngayo ngamaza akho omoya?Ivenkile esele igcwele kwi-2.4 GHz - umthengi Wi{2}}i-Fi, izivamvo ze-IoT, i-handheld scanners - iya kusokola nenye inkqubo ye-2.4 GHz ebekwe ngaphezulu. I-Sub -GHz isebenza kwiqela elinabantu abambalwa ngokupheleleyo.
Akukho protocol enye igqwesileyo kwihlabathi liphela. Ukuba umboneleli wakho we-ESL ubonelela kuphela ngokhetho olunye olungenazingcingo kwaye akanakuchaza apho isilela khona, oko kukuxelela into. Ukuba ufuna ukuvavanya iilebhile kwiiprothokholi kwivenkile yakho yokwenyani ngaphambi kokwenza isikali,cela iisampuli zovavanyo- iiveki ezimbini kwindlela enye ephilayo iveza ngaphezu kwalo naliphi na iphepha elithile okanye umthengisi wedekhi yesilayidi.
