Bluetooth vs Wi-Fi vs Sub-GHz Akabonero akalaga ku shelf ey'ebyuma

Emyezi ebiri egiyise, olujegere lwa supamaketi eza sayizi eya wakati mu Southern Europe yatusaba okujuliza enkola ya electronic shelf label rollout ku maduuka 22. Ttiimu yaabwe ey’okugula ebintu yali yasimbibwa dda enkola ssatu ez’enjawulo - emu ekola Bluetooth LE, endala ku Wi-Fi, ate endala ku leediyo ya 433 MHz ey’obwannannyini. Buli mutunzi yagamba nti eyiye ye yasinga. Tewali yannyonnyola mu mbeera ki mu butuufu gye yali esinga obubi. Emboozi eyo yatumatiza okuwandiika ekitundu kino.

Famire ssatu eza protocol ezitaliiko waya ze zifuga okuteekebwa mu nkola kwa ESL mu kiseera kino: Bluetooth Low Energy (BLE, naddala okuva ku 5.4 specification), Wi-Fi, ne Sub-GHz radio (433 MHz mu Asia, 868 MHz mu Bulaaya, 915 MHz mu North America). Buli protocol egonjoola ekizibu ekituufu. Buli emu ekola okusuubulagana brocuwa z’abatunzi ze zinyooma. Bino bye tulabye mu mbeera z’amaduuka entuufu.

Bluetooth LE: Open Standard, Ekyakula ku Scale

Bluetooth erina omutindo ogw’amaanyi emabega waayo. Bluetooth SIG yafulumya ESL Profile eyetongodde eyazimbibwa ku Bluetooth 5.4's PAwR (Periodic Advertising with Responses) feature - enkola esobozesa ekifo ekimu eky'okuyingira okuweereza ebiragiro ku nkumi n'enkumi za labels mu biseera ebitegekeddwa, olwo ne kifuna eby'okuddamu awatali kuteekawo nkolagana ya muntu ku bubwe.

Silicon Labs kino yakigezesa ku mutimbagano gwa 1,500-node mu laabu yaabwe. EM Microelectronic yasindika em|bleu SoC ku mm 1.8×1.8 zokka nga erina 200 nA deep sleep current - entono ekimala ate nga ekekkereza okusobola okutuuka munda waddecompact 2.66-inch E-yinki tags. Nga ebyuma bya Bluetooth ebisukka mu buwumbi 5 bisindikibwa buli mwaka, ssente ezisaasaanyizibwa ku bitundu ziganyulwa mu by’enfuna ebinene ennyo.

Ku basuubuzi, eky’omugaso eky’omugaso kwe kukyukakyuka kw’abatunzi. Omutindo oguggule gutegeeza - waakiri mu nkola - nti osobola okutabula ebifo ebiyingira okuva mu mugabi omu n'obubonero okuva mu mulala. Ekyo kwe kuva okw'amakulu okuva ku kkufulu y'omutunzi-mu ebadde etawaanya ESL okumala emyaka. Sleep currents wansi wa 2 μA ze zitera okubeera ku chipsets za BLE ESL, era Bluetooth 5.4 spec ewagira labels nga 32,600 buli access point network ku lupapula.

Ekikwatiddwa: "ku lupapula" kikulu wano. Okuteeka mu nkola eby’okulya ebinene-ku BLE kukyali bato nnyo bw’ogeraageranya n’enkola ez’obwannannyini ezibadde zikola okumala emyaka kkumi. Rigado, omutunzi wa IoT gateway akola mu ESL, ateeka ssente za gateway ssekinnoomu ku $1,000 okutuuka ku $2,000 eziteekeddwa - era supamaketi ennene eyinza okwetaaga kkumi oba okusingawo. BLE ekola ku 2.4 GHz, egabana spectrum ne Wi-Fi routers, amasimu ga bakasitoma, microwaves, ne buli kyuma ekirala ekitaliiko waya mu kizimbe. Mu dduuka eririmu abantu abangi, omugotteko ogwo guyinza okulwawo okulongoosa emiwendo mu ssaawa z’okukola ennyo.

Ekisinga okukwatagana: amaduuka g’eddagala, obuduuka, n’amaduuka aga sayizi eya wakati wansi wa m2 2,000 - naddala ago agakola edda ebitaala bya BLE okulondoola eby’obugagga. Abasuubuzi okunoonya ensibuko5.8-yinsi BLE-esobola ebiwandiiko ku shelfnti update okuva ku tablet etalina infrastructure nzito ejja kusanga protocol eno nga esikiriza.

Wi-Fi: Kozesa Omukutu Gyo Oguliwo - Naye Embalirira ya Battery

Eddoboozi liri butereevu: sitoowa yo yaddukanya dda Enterprise Wi-Fi mu buli kkubo, kale buuka emiryango emipya era oyunge ESL zo butereevu ku mutimbagano oguliwo. Ku njegere z’ebitongole ennene ezaateeka edda ssente ennyingi mu bifo eby’okuyingira eby’obusuubuzi nga zirina okubikka mu bujjuvu, okubala kw’okugatta kulabika nga kusikiriza.

Wi-Fi nayo egaba data throughput eya waggulu okusinga BLE oba Sub-GHz. Enkizo eyo efuuka erabika ng’osika ebirimu ebigagga eby’ebifaananyi - ebifaananyi by’ebintu, ebifaananyi eby’okutumbula - kuLCD-based digital price screensokusinga okukozesa E-ink tags ennyangu. OMUSsikirini ya yinsi 15.6 eya LCDokuddukanya promotions ku endcap kyetaaga bandwidth nga E-ink pricing tags tezikola.

Obuzibu bulabika mu bifo bibiri. Ekisooka, okukozesa amasannyalaze. Wi-Fi ekwata amasannyalaze mangi nnyo okusinga BLE oba Sub-GHz mu buli nsengekera y'okutambuza. E-ink label ku Sub-GHz radio eyinza okutambula emyaka etaano ku munaana ku coin cell nga buli lunaku etereezebwa emu ku ssatu. Label y'emu ku Wi-Fi? Emyezi kkumi n’ebiri okutuuka ku kkumi na munaana. Ku minzaani - enkumi n'enkumi z'ebiwandiiko mu maduuka agawera - ekyo kitegeeza pulogulaamu y'okukyusa bbaatule eddirira ttiimu yo ey'emirimu gy'erina okukozesa. Ekyokubiri, omugotteko gw’emikutu. Wi-Fi ESLs zivuganya ku budde bw'empewo ne POS terminals, ebyuma bya bakasitoma, sikaani ezikwatibwa mu ngalo, ne self-checkout kiosks. Mu biseera eby’oku ntikko ku Lwomukaaga akawungeezi, okuvuganya okwo si kwa ndowooza.

Ekisinga okukwatagana: abasuubuzi b’ebitongole abalina ebikozesebwa bya Wi-Fi ebikuze, ebikoleddwa obulungi, amaduuka agakola obupande bwa digito bwa LCD obukozesa amaanyi (nga obulamu bwa bbaatule tebulina mugaso kubanga screens ziteekeddwamu), n’okuteekebwa mu nkola okupimiddwa mu bikumi okusinga enkumi n’enkumi za labels.

Sub-GHz (433/868/915 MHz): Tewali Glamour, Ewala, Battery empanvu

Sub-GHz radio terina kibiina kya kusuubula kigitumbula mu ngeri Bluetooth SIG gy’ewangula BLE. Enkola ezisinga eza Sub-GHz ESL zikola ebiragiro eby'obwannannyini ebikwata ku omukozi wa label. Tewali nkolagana ya nkolagana. Okukyusa abatunzi kitegeeza okukyusa omutambi gwonna ogw’empuliziganya.

Era naye, ku nkola z’amaduuka ezimu, fizikisi egifuula eky’okulonda ekisinga okuba eky’omugaso. Frequency eza wansi zikola obuwanvu bw’amayengo obuwanvu. Obuwanvu bw’amayengo obuwanvu buyingira mu bisenge by’ebyuma, ebisenge ebigabanya seminti, n’ebifo eby’okulaga ebiri mu firiigi mu ngeri ennungi nnyo okusinga obubonero bwa 2.4 GHz. Display Data, omugabi wa ESL ow'e Bungereza-, yazimba omukutu gwabwe gwonna okwetoloola Sub-1 GHz olw'ensonga eno yennyini - ebanga erisinga obunene n'okuyingira kw'obubonero mu mbeera z'obusuubuzi enzibu. Ekifo ekimu eky'okuyingira ekya Sub-GHz kibikka ekigere ekinene ennyo okusinga ekyenkanankana nakyo ekya BLE oba Wi-Fi. Ebifo ebitono eby’okuyingira kitegeeza nti ssente z’ebikozesebwa zikendeera n’okuteekateeka emikutu okwangu.

Obulamu bwa bbaatule bwe nsonga endala esalawo. Silicon Labs’ ESL design guidance eraga nti okutuuka ku myaka etaano ku kkumi ku CR2032 coin cell kyetaagisa average current budget wansi wa 10 μA - their Sub-GHz FG22 SoC etuuka ku 0.17 μA mu tulo otungi. Aebiwandiiko ebinene-eby'ensengeka ya E-yinkimu mbeera za sitoowa oba ez'akatale akanene nga buli lunaku waliwo okulongoosebwa okumu ku ssatu, Sub-GHz bulijjo etuwa obulamu obusinga obuwanvu obw'okukola.

Ekisinga okukwatagana: amaduuka amanene n’abasuubuzi abanene-bokisi abasukka mu m2 5,000, embeera za sitoowa n’okutambuza ebintu nga zirina ebifo eby’ebyuma, enjegere ennyogovu n’ebifo ebirimu firiigi, n’okuteekebwa mu nkola kwonna nga okukendeeza ku bikozesebwa n’okutumbula obulamu bwa bbaatule bikulembeza okusinga bandwidth. Bakasitoma baffe abafulumya E-ink shelf labels mu maduuka amanene-format bulijjo basika ku Sub-GHz.

Oludda-ku-Okugeraageranya Oludda

Protocol Choice Ripples Okuyita mu Store Yo Yonna

Ekintu emiko gy'okugeraageranya protocol gye gisubwa buli kiseera: omukutu gwo ogwa ESL wireless tegukola mu kweyawula. Ebifo ebiyingira, emiwendo egy’emabega, pulogulaamu y’okuddukanya - byonna bikwata ku nkola endala eza digito mu dduuka. Bw’oba ​​oddukaself-service touchscreen kiosksfor checkout, kiosks ezo zisika emiwendo okuva mu database y’emu. Singa shelf-edge LCD bar displays zidduka promotions mu aisle, yingini y'ebirimu eriisa screens ezo nayo esobola okuleeta kampeyini ku E-ink labels zo - naye singa enkola zigabana API layer eyawamu.

Tulabye ebivaamu ebisinga obuyonjo nga bakasitoma bategeka okuteeka mu nkola ESL yaabwe ku mabbali ga kiosk yaabwe n’okutambuza ebipande bya digito, so si nga pulojekiti za IT ssatu ez’enjawulo. Bbeeyi kasitoma bw’alaba ku shelf tag, endcap LCD screen, ne self-checkout terminal byonna birya okuva mu nsibuko emu, okwemulugunya kw’emiwendo - ekifo ekimu ekisinga okusika omuguwa mu grocery - kukka kumpi ne ziro.

Ebibuuzo Bisatu Nga Tonnaba kwewaayo

Pulaani yo ey’oku mwaliiro eringa etya?Edduuka ly’eddagala erya m2 400 ne hypermarket ya m2 12,000, mbeera za leediyo za njawulo. BLE ekwata ekisooka ng’erina ebifo bibiri oba bisatu ebiyingira. Ekyokubiri osanga kyetaaga Sub-GHz okwewala okusuula kasasiro ku siringi n'emiryango.

Birimu ki by’olaga?Emiwendo egitakyukakyuka ku E-ink? Protocol yonna ekwata ekyo. Ebitumbula vidiyo ku ssirini za LCD ezikozesa amaanyi? Okwetaaga okuyita kwa Wi-Fi. Flash pricing ekyukakyuka emirundi mingi buli ssaawa? Kakasa nti protocol yo esobola okuyimirizaawo update volume nga tomazeeko battery nga tebunnatuuka.

Kiki ekirala ekigabana amayengo go?Store eyajjula edda ku 2.4 GHz - kasitoma Wi-Fi, sensa za IoT, sikaani ezikwatibwa mu ngalo - ejja kulwanagana n'enkola endala eya 2.4 GHz etekeddwa waggulu. Sub-GHz ekola mu bbandi etali ya bantu bangi yonna.

Tewali protocol emu esinga mu nsi yonna. Singa omugabi wo eya ESL akuwa enkola emu yokka etaliiko waya era nga tasobola kunnyonnyola w’egwa, ekyo kibaako ky’akugamba. Bw’oba ​​oyagala okugezesa obubonero mu nkola zonna mu dduuka lyo lyennyini nga tonnaba kwewaayo ku minzaani, .okusaba sampuli z’okwekenneenya- wiiki bbiri mu live aisle emu eraga ebisinga ku spec sheet yonna oba vendor slide deck.