Watanni biyu da suka gabata, jerin manyan kantunan manyan kantunan {{0} a Kudancin Turai sun neme mu da mu faɗi wata alama ta shiryayye ta lantarki don shaguna 22. An riga an kafa ƙungiyar masu sayan su ta tsarin daban-daban guda uku - ɗaya yana gudana Bluetooth LE, ɗaya akan Wi-Fi, ɗaya kuma akan rediyo na 433 MHz. Kowane mai siyarwa ya yi iƙirarin nasu shine mafi kyau. Babu wanda ya bayyana a cikin wane yanayi ya kasance mafi muni. Wannan tattaunawar ta gamsar da mu don rubuta wannan yanki.
Iyalan ka'idojin mara waya guda uku sun mamaye ayyukan ESL a yanzu: Ƙarfin Ƙarfin Bluetooth (BLE, musamman tun da ƙayyadaddun 5.4), Wi{1}}Fi, da Sub{2}} rediyon GHz (433 MHz a Asiya, 868 MHz a Turai, 915 MHz a Arewacin Amirka). Kowace yarjejeniya tana magance matsala ta gaske. Kowannensu yana haifar da ɓangarorin kasuwanci waɗanda ƙasidu masu siyarwa ke ƙasa. Ga abin da muka gani a cikin mahallin kantin gaske.
Bluetooth LE: Buɗe Standard, Har yanzu Girma a Sikeli
Bluetooth yana da matukar tasiri a bayansa. Bluetooth SIG ya wallafa keɓaɓɓen Bayanan martaba na ESL wanda aka gina akan Bluetooth 5.4's PawR (Talla ta lokaci-lokaci tare da Amsoshi) fasalin - wani tsari wanda zai ba da damar yin amfani da umarnin watsa shirye-shirye zuwa dubunnan tambura a cikin wuraren da aka tsara, sannan karɓar martani ba tare da kafa haɗin kai ba.
Silicon Labs sun gwada wannan akan hanyar sadarwar node 1,500{6} a cikin dakin binciken su. EM Microelectronic ya aika da em|bleu SoC a kawai 1.8 × 1.8 mm tare da 200 nA zurfin barci na halin yanzu - ƙananan isa kuma mai ƙarancin isa ya dace ciki ko dam 2.66{1} inch E-ink tags. Tare da jigilar na'urorin Bluetooth sama da biliyan 5 kowace shekara, farashin kayan aikin yana amfana daga manyan ma'auni na tattalin arziƙi.
Ga 'yan kasuwa, abin da ya dace shine sassaucin mai siyarwa. Buɗaɗɗen ma'auni yana nufin - aƙalla bisa ƙa'ida - cewa zaku iya haɗa wuraren samun dama daga mai siyarwa da takalmi daga wani. Wannan tashi ne mai ma'ana daga makullin mai siyarwa{4}}a cikin wannan ya addabi ESL tsawon shekaru. Ruwan baccin da ke ƙasa da 2 µA sune na yau da kullun don BLE ESL chipsets, kuma ƙayyadaddun Bluetooth 5.4 yana goyan bayan alamun kusan 32,600 a kowace hanyar sadarwar hanyar shiga akan takarda.
Kama: "a kan takarda" yana da mahimmanci a nan. Manya-manyan tura kayan abinci a kan BLE har yanzu suna da ɗan ƙaramin ƙarfi idan aka kwatanta da tsarin mallakar mallaka waɗanda ke gudana tsawon shekaru goma. Rigado, mai siyar da ƙofa ta IoT mai aiki a cikin ESL, yana sanya farashin ƙofar kowane ɗaya akan $1,000 zuwa $2,000 shigar - kuma babban babban kanti na iya buƙatar goma ko fiye. BLE yana aiki a 2.4 GHz, yana raba bakan tare da Wi{10}Fi routers, wayoyin abokin ciniki, microwaves, da kowace na'ura mara waya a cikin ginin. A cikin shago mai aiki, wannan cunkoson na iya jinkirta sabunta farashi a lokacin mafi girman sa'o'i.
Mafi dacewa: kantin magani, boutiques, da tsakiyar{0}masu girman kantuna ƙasa da 2,000 m² - musamman waɗanda tuni suna gudanar da tasoshin BLE don bin diddigin kadara. Dillalai masu samo asali5.8{1} inch alamar shiryayye mai iya BLEsabuntawa daga kwamfutar hannu ba tare da kayan aiki masu nauyi ba zai sami wannan yarjejeniya ta sha'awa.
Wi{0}Fi: Yi Amfani da Cibiyar sadarwar ku ta - Amma Kasafin Kuɗi don Batura
Matsakaicin madaidaici: kantin sayar da ku ya riga yana gudanar da Wi-Fi na kasuwanci a kowace hanya, don haka ku tsallake sabbin ƙofofin kuma ku haɗa ESL ɗin ku kai tsaye zuwa cibiyar sadarwar da ke akwai. Don manyan sarƙoƙin kasuwanci waɗanda suka riga sun saka hannun jari sosai a wuraren samun damar kasuwanci tare da cikakken ɗaukar hoto, lissafin haɗin kai yana da kyau.
Wi{0}Fi kuma yana ba da mafi girman kayan aikin bayanai fiye da BLE ko Sub{1}}GHz. Wannan fa'idar ta zama abin gani lokacin da kuke tura abubuwan da aka zayyana masu inganci - Hotunan samfur, raye-rayen talla - zuwaLCD - tushen allon farashin dijitalmaimakon E{0}} alamun tawada masu sauƙi. A15.6-inch LCD allongudanar da tallace-tallace a ƙarshen ƙarshen yana buƙatar bandwidth wanda E- alamun farashin tawada ba sa.
Matsalar ta bayyana a wurare biyu. Na farko, amfani da wutar lantarki. Wi{2}Fi yana jan hankali fiye da BLE ko Sub{3}}GHz yayin kowane zagayowar watsawa. Alamar tawada E{5} akan Rediyon Sub-GHz na iya gudanar da shekaru biyar zuwa takwas akan tantanin kwabo tare da sabuntawa ɗaya zuwa uku na yau da kullun. Alamar iri ɗaya akan Wi{8}}Fi? Wata goma sha biyu zuwa sha takwas. A sikelin - dubunnan tambura a cikin shaguna da yawa - wanda ke nufin shirin maye gurbin baturi mai maimaitawa ƙungiyar ayyukanku dole ne ta samar da su. Na biyu, cunkoson hanyoyin sadarwa. Wi{14}Fi ESLs suna gasa don lokacin iska tare da tashoshi POS, na'urorin abokin ciniki, na'urorin daukar hoto, da na'urorin dubawa na kai{15}. A lokacin kololuwar yammacin ranar Asabar, wannan gasar ba ta ka'ida ba ce.
Mafi dacewa: ƴan kasuwa masu balagagge, ƙwararrun kayan aikin Wi-Fi{1}Fi, suna adana alamun dijital na LCD masu ƙarfi (inda rayuwar baturi ba ta da mahimmanci saboda an toshe fuskar bangon waya), da tura daruruwa maimakon dubun dubatar tambura.
Sub{0}GHz (433/{2}}/915 MHz): Babu Glamour, Dogon Kewa, Dogon Baturi
Sub{0}GHz rediyo ba shi da tsarin tallan da ke tallata shi kamar yadda zakarun Bluetooth SIG BLE. Yawancin tsarin ESL na Sub{2}GHz yana gudanar da ka'idojin mallakar mallaka musamman ga mai kera lakabin. Babu bayanin martabar haɗin kai. Canja dillalai yana nufin maye gurbin gabaɗayan tarin sadarwa.
Duk da haka, don wasu nau'ikan kantin sayar da kayayyaki, ilimin kimiyyar lissafi ya sanya shi zaɓi mafi dacewa. Ƙananan mitoci suna samar da tsayin raƙuman ruwa. Dogayen tsayin raƙuman raƙuman raƙuman ruwa suna ratsa shingen ƙarfe, bangon ɓangarorin kankare, da wuraren nunin firiji fiye da sigina na 2.4GHz. Nuna Bayanai, mai ba da sabis na ESL na Burtaniya{4}, sun gina gabaɗayan dandamalin su a kusa da Sub{6}}1 GHz don daidai wannan dalili - iyakar iyaka da shigar da sigina a cikin hadaddun mahalli na tallace-tallace. Wurin shiga Sub{9}}GHz guda ɗaya yana rufe babban sawun ƙafa fiye da BLE ko makamancinsa na Wi-Fi. Ƙananan wuraren samun dama yana nufin ƙananan farashin kayayyakin more rayuwa da mafi sauƙin tsara hanyar sadarwa.
Rayuwar baturi shine ɗayan mahimman al'amura. Jagorar ƙira ta Silicon Labs' ESL tana ƙayyadaddun cewa kai shekaru biyar zuwa goma akan tantanin halitta na CR2032 yana buƙatar matsakaicin kasafin kuɗi na yanzu ƙasa da 10 µA - Sub{4}GHz FG22 SoC na 0.17 µA cikin zurfin bacci. Dominmanyan -Tsarin E{1}} labulen tawadaa cikin ɗakunan ajiya ko manyan kantuna tare da sabuntawa ɗaya zuwa uku a kullum, Sub{0}}GHz yana ba da mafi dadewar rayuwar aiki.
Mafi dacewa: manyan kantunan manyan kantuna da manyan masu siyar da akwatin sama da 5,000 m², ɗakunan ajiya da mahalli tare da tara ƙarfe, sarkar sanyi da wuraren da aka sanyaya, da duk wani turawa inda rage abubuwan more rayuwa da haɓaka rayuwar baturi suna ɗaukar fifiko akan bandwidth. Abokan cinikinmu suna fitar da alamun E{4}} tawada a cikin manyan shagunan tsari{5} akai-akai suna yin nauyi zuwa Sub-GHz.
Gefen - ta - Kwatancen Gefe
| Ma'auni | Bluetooth LE 5.4 | Wi{0}Fi | Sub{0}GHz (433/{2}}/915 MHz) |
|---|---|---|---|
| Tasiri A cikin -Range Store | 10–30 m | 15–35 m | 50–200 m |
| Rayuwar Baturi (E{0}}tawada, 1-3 sabuntawa/rana) | 3-5 shekaru | 1-2 shekaru | 5-10 shekaru |
| Tasirin Bayanai | Matsakaici | Babban | Ƙananan |
| Lakabi a kowane Wurin Samun shiga | ~ 32,000 (spec) / ɗaruruwan na yau da kullun | Ya bambanta da ƙarfin AP | Dubban kofa |
| Kudin Gateway (an shigar) | $1,000–$2,000 | Yana amfani da cibiyar sadarwar data kasance | $500–$1,500 |
| Tsangwama 2.4GHz | Ee | Ee | Babu rukunin daban daban {{0} |
| Buɗe Standard | Ee (Bayanan Bayanan ESL) | Da (802.11) | Galibi na mallaka |
| Mafi kyawun Tsarin Store | Kananan-tsakiyar dillali, kantin magani | Kasuwanci tare da IT mai ƙarfi | Hypermarkets, shaguna |
Zaɓin Protocol Ripples Ta Dukan Shagon ku
Wani abu da labaran kwatancen ƙa'idar ke ɓacewa akai-akai: cibiyar sadarwar ku ta ESL mara waya ba ta aiki a keɓe. Wuraren samun damar shiga, ƙarshen farashi, software ɗin gudanarwa - duk yana taɓa sauran tsarin dijital a cikin shagon. Idan kuna gudukai - kiosks allon taɓawa sabisdon dubawa, waɗancan kiosks suna fitar da farashi daga ma'ajin bayanai iri ɗaya. Idan shelf - gefen LCD mashaya yana nunin tallan tallace-tallace a cikin hanya, injin abun ciki da ke ciyar da waɗancan allon yana iya haifar da kamfen akan alamun tawada na ku E{3} amma sai idan tsarin yana raba Layer API gama gari.
Mun ga mafi kyawun sakamako lokacin da abokan ciniki ke shirin tura ESL ɗin su tare da kiosk ɗin su da fidda sa hannu na dijital, ba kamar ayyukan IT daban-daban guda uku ba. Lokacin da farashin abokin ciniki ya gani akan alamar shiryayye, allon LCD mai ƙarewa, da kuma kai{1}tasharar dubawa duk abinci daga tushe ɗaya, farashi yana korafin - mafi girman juzu'i guda ɗaya a cikin kayan abinci - ya ragu kusa da sifili.
Tambayoyi Uku Kafin Ka Aikata
Yaya tsarin benen ku yayi kama?kantin magani 400m² da babban kanti na 12,000 m² muhallin rediyo daban-daban ne. BLE yana sarrafa na farko tare da maki biyu ko uku. Wataƙila na biyu yana buƙatar Sub{5}GHz don gujewa zubar da rufin rufi tare da ƙofa.
Wane abun ciki kuke nunawa?Adadin farashin tawada E{0}? Duk wata ka'ida tana ɗaukar hakan. Tallan bidiyo akan allon LCD masu ƙarfi? Kuna buƙatar kayan aikin Wi{2}Fi. Farashin walƙiya wanda ke canza sau da yawa a cikin awa ɗaya? Tabbatar da ka'idar ku na iya ɗaukar ƙarar sabuntawa ba tare da zubar da batura ba da wuri.
Me kuma ke raba iskar ku?Wani shagon da ya riga ya cika a 2.4 GHz - Wi-Fi abokin ciniki -Fi, IoT firikwensin, na'urar daukar hoto - zai yi kokawa da wani tsarin 2.4 GHz da aka shimfiɗa a sama. Sub-GHz yana aiki a cikin ƙungiyar da ba ta da cunkoso gaba ɗaya.
Babu ƙa'ida ɗaya da ta fi kyau a duniya. Idan mai siyar da ESL ɗin ku yana ba da zaɓi mara waya ɗaya kawai kuma ba zai iya bayyana inda ya gaza ba, wannan yana gaya muku wani abu. Idan kuna son gwada lakabi a cikin ƙa'idodi a cikin ainihin kantin sayar da ku kafin yin a sikelin,nemi samfuran kimantawa- makonni biyu a cikin wata hanya mai raye-raye tana bayyana fiye da kowane takamaiman takarda ko faifan faifan mai siyarwa.
