Likhoeling tse peli tse fetileng, mabenkele a mangata-a boholo bo bohareng a Europe Boroa a re kopile ho qotsa ho phatlalatsoa ha leibole ea elektroniki bakeng sa mabenkele a 22. Sehlopha sa bona sa ho reka se ne se se se kentsoe lisebelisoa tse tharo tse fapaneng - e 'ngoe e sebelisa Bluetooth LE, e 'ngoe e le Wi-Fi,' me e 'ngoe e sebelisa radio ea 433 MHz. Morekisi e mong le e mong o ne a re ea bona ke eona e ntle ka ho fetisisa. Ha ho le ea mong ea ileng a hlalosa hore na e ne e le mpe ka ho fetisisa tlas’a maemo afe. Puisano eo e ile ea re kholisa hore re ngole sengoloa sena.
Malapa a mararo a li-wireless protocol a laola thepa ea ESL hajoale: Bluetooth Low Energy (BLE, haholo-holo ho tloha ka 5.4 specification), Wi-Fi, le Sub-GHz radio (433 MHz in Asia, 868 MHz in Europe, 915 MHz in North America). Protocol e 'ngoe le e' ngoe e rarolla bothata ba 'nete. E 'ngoe le e' ngoe e theha li-tradeoffs tseo barekisi ba libukana ba li bapalang. Mona ke seo re se boneng libakeng tsa mabenkele tsa 'nete.
Bluetooth LE: Open Standard, E ntse e hola ka Sekala
Bluetooth e na le lebelo le tebileng ka morao ho eona. Bluetooth SIG e phatlalalitse ESL Profile e inehetseng e hahiloeng holim'a Bluetooth 5.4's PAwR (Periodic Advertising with Responses) e nang le - mokhoa o lumellang sebaka se le seng sa phihlello ho phatlalatsa litaelo ho likete tsa lileibole ka linako tse hlophisitsoeng, ebe li fumana likarabo ntle le ho theha likhokahano tsa motho ka mong.
Silicon Labs e lekile sena ho netweke ea 1,500{6}}node laboratoring ea bona. EM Microelectronic e tsamaisitse em|bleu SoC ka 1.8 × 1.8 mm feela e nang le boroko bo tebileng ba 200 nA - e nyane ka ho lekaneng ebile e baballa hoo e ka lekanang kahare.compact 2.66-li-tag tsa E-inki. Ka lisebelisoa tsa Bluetooth tse fetang limilione tse likete tse 5 tse romelloang selemo le selemo, litšenyehelo tsa likarolo li rua molemo ho tsoa moruong o moholo.
Bakeng sa barekisi, phello e sebetsang ke ho feto-fetoha ha barekisi. Maemo a bulehileng a bolela - bonyane ka molao-motheo - hore o ka kopanya libaka tsa phihlello ho tsoa ho morekisi e mong le lileibole tse tsoang ho e mong. Hoo ke ho falla ho utloahalang ho tsoa ho senotlolo sa barekisi{4}}hoo ho anngoeng ke ESL ka lilemo. Maqhubu a ho robala a ka tlase ho 2 µA a tloaelehile bakeng sa li-chipsets tsa BLE ESL, 'me Bluetooth 5.4 spec e ts'ehetsa lileibole tse ka bang 32,600 sebakeng se seng le se seng sa marang-rang a phihlello pampiring.
Ho tšoasa: "pampiri" ke taba mona. Tse kholo-ho romelloa ha korosari ho BLE li ntse li le linyane ha li bapisoa le litsamaiso tsa thepa tse 'nileng tsa sebetsa lilemo tse leshome. Rigado, morekisi oa IoT gateway ea sebetsang ho ESL, o beha litšenyehelo tsa motho ka mong ho $1,000 ho $2,000 e kentsoe - mme lebenkele le leholo le ka hloka tse leshome kapa ho feta. BLE e sebetsa ka 2.4 GHz, e abelana le{10}liruthara tsa Wi{10}Fi, mehala ea bareki, li-microwave, le lisebelisoa tsohle tse se nang mohala mohahong. Lebenkeleng le phetheselang, tšubuhlellano eo e ka liehisa lintlafatso tsa litheko nakong ea lihora tse phahameng haholo.
E loketseng ka ho fetesisa: likhemisi, mabenkele a mabenkele, le{0}}mabenkele a boholo bo bohareng a ka tlase ho 2,000 m² - haholo-holo a seng a ntse a sebelisa li-beacon tsa BLE bakeng sa ho latedisa matlotlo. Ho fumana barekisi5.8-li-inch BLE-cable shelf labelsntjhafatso e tsoang ho letlapa ntle le lisebelisoa tse boima e tla fumana protocol ena e khahla.
Wi-Fi: Sebelisa Netweke ea Hao e Teng - Empa Tekanyetso ea Libetri
Boemo bona bo hlakile: lebenkele la hau le se le ntse le sebelisa Wi-Fi{{0}Fi sebakeng se seng le se seng, kahoo, tlola liheke tse ncha 'me u hokele li-ESL tsa hau ka kotloloho ho netweke e teng. Bakeng sa liketane tse kholo tsa likhoebo tse seng li tsetelitse haholo libakeng tsa phihlello tsa khoebo tse nang le tšireletso e felletseng, lipalo tsa ho kopanya li shebahala li khahla.
Wi-Fi hape e fana ka ts'ebeliso ea data e holimo ho feta BLE kapa Sub-GHz. Monyetla oo o bonahala ha o sebelisa litšoantšo tse hlakileng - litšoantšo tsa lihlahisoa, lipopae tsa papatso - hoLCD- e thehiloeng ho litheko tsa dijithale skriniho e-na le li-tag tsa E{0}} tse bonolo. ALCD skrine ea 15.6-inchho tsamaisa lipapatso ka endcap ho hloka bandwidth eo E{0}}li-tag tsa enke li sa e hlokeng.
Bothata bo hlaha libakeng tse peli. Ntlha ea pele, tšebeliso ea matla. Wi-Fi e hula hona joale haholo ho feta BLE kapa Sub-GHz nakong e 'ngoe le e 'ngoe ea phetisetso. Leibole ea E{{5}enkeng ea seea-le-moea sa Sub{{6}GHz GHz e ka sebetsa lilemo tse hlano ho isa ho tse robeli ka chelete ea tšepe e nang le lintlha tse ncha ho isa ho tse tharo tsa letsatsi le letsatsi. Leibole e tšoanang ho Wi{8}Fi? Likhoeli tse leshome le metso e 'meli ho isa ho tse leshome le metso e robeli. Ka tekanyo e itseng - likete tsa lileibole mabenkeleng a mangata - ho bolelang hore ho tla ba le lenaneo la khafetsa la ho chencha betri eo sehlopha sa hau sa ts'ebetso se lokelang ho le thusa. Ea bobeli, tšubuhlellano ea marang-rang. Li-Wi{{14}Fi ESL li hlolisanoa bakeng sa nako ea moea le litheminale tsa POS, lisebelisoa tsa bareki, li-scanner tse tšoaroang ka letsoho, le{15}}li-kiosks tsa ho tsoa. Nakong ea litlhōrō tsa Moqebelo thapama, tlhōlisano eo hase khopolo-taba.
E loketseng hantle: barekisi ba likhoebo ba nang le-lisebelisoa tsa Wi{1} tse tsoetseng pele hantle, mabenkele a nang le matšoao a LCD a matla (moo bophelo ba betri bo sa sebetseng hobane li-skrini li hokeloa), le lisebelisoa tse lekantsoeng ka makholo ho fapana le mashome a likete a lileibole.
Sub-GHz (433/868/915 MHz): No Glamour, Long Range, Long Battery
Sub{{0}GHz radio ha e na mokgatlo wa dipapatso o e bapatsang ka tsela eo Bluetooth SIG e leng bahlodi ba BLE. Boholo ba lisistimi tsa Sub{{2}GHz ESL li tsamaisana le liprothocol tse ikhethileng ho moetsi oa lileibole. Ha ho profil ea tšebelisano 'moho. Ho fetola barekisi ho bolela ho nkela sebaka sohle sa puisano sebaka.
Leha ho le joalo, bakeng sa lifomate tse ling tsa lebenkele, fisiks e e etsa khetho e sebetsang ka ho fetisisa. Maqhubu a tlase a hlahisa maqhubu a malelele. Maqhubu a malelele a kenella ka har'a lishelefo tsa tšepe, mabota a karohano ea konkreite, le li-ponts'o tse entsoeng ka sehatsetsing ka mokhoa o atlehileng ho feta matšoao a 2.4 GHz. Display Data, e leng UK{{4}mofani oa ESL o thehiloeng UK, o hahile sethala kaofela ho potoloha Sub{6}}1 GHz ka lebaka lena - boholo ba sebaka le ho kenella ha matšoao libakeng tse rarahaneng tsa mabenkele. Sebaka se le seng sa ho kena sa Sub{9}GHz se akaretsa sebaka se seholo ho feta BLE kapa Wi-Fi e lekanang le eona. Libaka tse fokolang tsa ho fihlella li bolela litšenyehelo tse tlaase tsa litšebeletso tsa motheo le moralo o bonolo oa marang-rang.
Bophelo ba betri ke ntlha e 'ngoe ea bohlokoa. Tataiso ea meralo ea Silicon Labs ea ESL e totobatsa hore ho fihla lilemo tse hlano ho isa ho tse leshome ho sele ea tšepe ea CR2032 ho hloka tekanyetso ea hajoale e ka tlase ho 10 µA - ea bona ea Sub-GHz FG22 SoC e fihlela 0.17 µA borokong bo tebileng. Bakeng salitlhaku tse kholo-E{1}} tsa sebopeho sa E{1}libakeng tsa polokelo kapa li-hypermarket tse ntlafatsoang letsatsi le letsatsi ho isa ho tse tharo, Sub-GHz e lula e fana ka nako e telele ea ts'ebetso.
E loketseng ka ho fetisisa: li-hypermarket le{0}}makhotla a maholo a ka holimo ho 5,000 m², libaka tsa polokelo le tsa thepa tse nang le litšepe, litšepe tse batang le libaka tse nang le sehatsetsi, le phepelo efe kapa efe moo ho fokotsa lisebelisoa le ho ntlafatsa bophelo ba betri ho tlang pele ho bandwidth. Bareki ba rona ba hlahisa lileibole tsa E-enke tsa shelofo ea enke mabenkeleng a maholo-a fomete ka linako tsohle ho Sub-GHz.
Lehlakore-ka{1}}Side Comparison
| Metric | Bluetooth LE 5.4 | Wi-Fi | Sub-GHz (433/868/915 MHz) |
|---|---|---|---|
| E sebetsa ho-Store Range | 10–30 m | 15–35 m | 50–200 m |
| Battery Life (E-inke, 1–3 lintlafatso/letsatsi) | 3-5 lilemo | 1-2 lilemo | 5-10 lilemo |
| Phatlalatso ea Lintlha | E itekanetseng | Phahameng | Tlase |
| Li-labels ho latela Sebaka sa ho fihlella | ~ 32,000 (spec) / makholo a tloaelehileng | E fapana ho ea ka bokhoni ba AP | Tse likete ka heke |
| Gateway Cost (e kentsoe) | $1,000–$2,000 | E sebelisa marang-rang a teng | $500–$1,500 |
| Tšitiso ea 2.4 GHz | Ee | Ee | Ha ho - sehlopha se arohaneng |
| Open Standard | Ee (BLE ESL Profile) | Ee (802.11) | Boholo ba thepa |
| Molemo ka ho Fetisisa oa Lebenkele Format | Mabenkele a manyane-bohareng, li-pharmacy | Khoebo e nang le IT e matla | Li-hypermarket, matlo a polokelo |
Protocol Choice Ripples Ka Lebenkele lohle la Hau
Ntho eo lingoloa tsa papiso ea protocol li lulang li e hloloheloa: netweke ea hau ea mohala ea ESL ha e sebetse e le mong. Lintlha tsa phihlello, maemo a morao a litheko, software ea taolo - kaofela e ama litsamaiso tse ling tsa dijithale lebenkeleng. Haeba u matha"Service touchscreen kiosks"-bakeng sa ho lefa, li-kiosks tseo li hula litheko ho tsoa polokelong e tšoanang. Haeba shelefo-lipontšo tsa LCD bareng li fana ka liphatlalatso tseleng, sesebelisoa sa content se fepang skrini seo se ka boela sa qala matšolo ho E{2}}malebole a enke - empa ha feela lisebelisoa li arolelana karolo e tšoanang ea API.
Re bone liphetho tse hloekileng ha bareki ba rera ho tsamaisoa ha ESL haufi le kiosk ea bona le phatlalatso ea matšoao a dijithale, eseng joalo ka merero e meraro e arohaneng ea IT. Ha litheko tseo moreki a li bonang shelofong, skrineng sa LCD sa endcap, le{1}}litheminale tsa ho reka li tsoa mohloling o le mong, litletlebo tsa litheko - ntlha e le 'ngoe ea likhohlano tse kholo lebenkeleng - li theoha haufi le lefela.
Lipotso Tse tharo Pele U Ikemela
Polane ea hau ea fatše e shebahala joang?Pharmacy ea 400 m² le hypermarket ea 12,000 m² ke libaka tse fapaneng tsa radio. BLE e sebetsana le ea pele ka lintlha tse peli kapa tse tharo tsa phihlello. Ea bobeli mohlomong e hloka Sub-GHz ho qoba ho qhala siling ka liheke.
U hlahisa litaba life?Litheko tse tsitsitseng ka E-inki? Protocol efe kapa efe e sebetsana le seo. Lipapatso tsa video ho li-skrini tsa LCD tse matla? U hloka Wi{2}Fi's throughput. Theko ea Flash e fetohang makhetlo a mangata ka hora? Netefatsa hore protocol ea hau e ka boloka molumo oa ntlafatso ntle le ho ntša libeteri pele ho nako.
Ke eng hape e arolelanang litaba tsa hau?Lebenkele le seng le tletse ka 2.4 GHz - moreki Wi-Fi, lisensara tsa IoT, li-scanner tse tšoaroang ka letsoho - li tla thatafalloa ke sistimi e 'ngoe ea 2.4 GHz e holimo. Sub{{6}GHz e sebetsa ka sehlopha se se nang batho ba bangata haholo.
Ha ho protocol e le 'ngoe e molemo ka ho fetisisa lefatšeng ka bophara. Haeba morekisi oa hau oa ESL a fana ka khetho e le 'ngoe feela ea waelese mme a sa khone ho hlalosa hore na e oela hokae, seo se u bolella ho hong. Haeba u batla ho lekola li-labels ho liprothokholi lebenkeleng la hau la 'nete pele u itlama ka bongata,kopa mehlala ea tlhahlobo- libeke tse peli tseleng e le 'ngoe e bonts'a lintho tse ngata ho feta li-slide deck kapa morekisi.
