Ob lub hlis dhau los, cov saw hlau ntawm nruab nrab -cov khw muag khoom loj nyob rau sab qab teb Europe tau hais kom peb hais cov ntawv txee hluav taws xob rau 22 lub khw muag khoom. Lawv pab neeg yuav khoom twb tau pitched peb txawv systems - ib tug khiav Bluetooth LE, ib tug ntawm Wi-Fi, thiab ib tug tswv ntawm 433 MHz xov tooj cua. Txhua tus neeg muag khoom tau lees tias lawv qhov zoo tshaj plaws. Tsis muaj leej twg piav qhia nyob rau hauv cov xwm txheej twg nws yog qhov phem tshaj plaws. Qhov kev sib tham ntawd tau txhawb kom peb sau daim ntawv no.
Peb tsev neeg wireless raws tu qauv tswj hwm ESL kev xa tawm tam sim no: Bluetooth Tsawg Zog (BLE, tshwj xeeb tshaj yog txij li 5.4 specification), Wi-Fi, thiab Sub-GHz xov tooj cua (433 MHz hauv Asia, 868 MHz hauv Europe, 915 MHz hauv North America). Txhua txoj cai daws qhov teeb meem tiag tiag. Txhua tus tsim kev lag luam tawm uas cov neeg muag khoom daim ntawv qhia tsis ua haujlwm. Nov yog qhov peb tau pom nyob thoob plaws lub khw muag khoom tiag tiag.
Bluetooth LE: Qhib Standard, Tseem Maturing ntawm Scale
Bluetooth muaj lub zog loj tom qab nws. Lub Bluetooth SIG tau luam tawm ib qho ESL Profile ua rau ntawm Bluetooth 5.4's PAwR (Kev Tshaj Tawm Txog Lub Sijhawm Nrog Cov Lus Teb) feature - ib lub tswv yim uas tso cai rau ib qho chaw nkag mus tshaj tawm cov lus txib rau ntau txhiab daim ntawv nyob rau hauv lub sijhawm teem sijhawm, tom qab ntawd tau txais cov lus teb yam tsis muaj kev sib txuas ntawm tus kheej.
Silicon Labs tau sim qhov no ntawm 1,500-node network hauv lawv lub lab. EM Microelectronic xa mus rau em|bleu SoC ntawm tsuas yog 1.8 × 1.8 hli nrog 200 nA pw tsaug zog tam sim no - me me txaus thiab frugal txaus kom haum rau hauv txawm tiascompact 2.66-inch E-tus cim npe. Nrog ntau tshaj 5 billion Bluetooth khoom xa tuaj txhua xyoo, cov nqi tivthaiv tau txais txiaj ntsig los ntawm kev lag luam loj ntawm kev teev.
Rau cov khw muag khoom, cov tswv yim upside yog cov neeg muag khoom yooj yim. Tus qauv qhib txhais tau tias - tsawg kawg hauv txoj cai - uas koj tuaj yeem sib xyaw cov ntsiab lus nkag los ntawm ib tus neeg muag khoom nrog cov ntawv lo ntawm lwm tus. Qhov ntawd yog qhov muaj txiaj ntsig tawm ntawm qhov chaw muag khoom xauv- nyob rau hauv uas tau ua phem rau ESL tau ntau xyoo. Pw tsaug zog tam sim no qis dua 2 µA yog ib qho zoo rau BLE ESL chipsets, thiab Bluetooth 5.4 spec txhawb nqa kwv yees li 32,600 daim ntawv lo rau ib qho chaw nkag mus rau ntawm daim ntawv.
Kev ntes: "ntawm ntawv" tseem ceeb ntawm no. Loj -kev xa khoom noj khoom haus loj ntawm BLE tseem tseem hluas dua piv rau cov tswv cuab uas tau ua haujlwm rau kaum xyoo. Rigado, tus neeg muag khoom IoT rooj vag ua haujlwm hauv ESL, tso tus nqi rooj vag ntawm tus kheej ntawm $ 1,000 txog $ 2,000 ntsia - thiab lub khw loj loj yuav xav tau kaum lossis ntau dua. BLE ua haujlwm ntawm 2.4 GHz, sib koom spectrum nrog Wi-Fi routers, cov neeg siv xov tooj, microwaves, thiab txhua lwm yam khoom siv wireless hauv lub tsev. Hauv lub khw muag khoom tsis khoom, qhov kev sib tsoo tuaj yeem ncua kev hloov kho tus nqi thaum lub sij hawm ncov.
Qhov zoo tshaj plaws: cov khw muag tshuaj, khw muag khoom, thiab nruab nrab -cov khw muag khoom loj hauv qab 2,000 m² - tshwj xeeb tshaj yog cov uas twb tau khiav BLE beacons rau kev taug qab cov cuab tam. Cov khw muag khoom muag5.8-inch BLE-muaj peev xwm txee cov ntawvuas hloov tshiab los ntawm lub ntsiav tshuaj yam tsis muaj kev txhim kho hnyav yuav pom cov txheej txheem no txaus siab.
Wi-Fi: Siv koj lub Network uas twb muaj lawm - Tab sis pob nyiaj siv rau roj teeb
Lub suab yog ncaj nraim: koj lub khw twb khiav lag luam Wi-Fi hauv txhua txoj kev, yog li hla lub rooj vag tshiab thiab txuas koj ESLs ncaj qha mus rau lub network uas twb muaj lawm. Rau cov tuam txhab lag luam loj uas twb tau nqis peev ntau hauv kev lag luam nkag mus rau cov ntsiab lus nrog tag nrho cov kev pab cuam, kev sib koom ua lej zoo li ntxim nyiam.
Wi-Fi kuj tseem xa cov ntaub ntawv ntau dua li BLE lossis Sub-GHz. Qhov txiaj ntsig ntawd dhau los ua qhov pom tseeb thaum koj thawb cov ntsiab lus nplua nuj graphical - cov duab khoom, kev tshaj tawm animations - rauLCD-raws li cov ntxaij vab tshaus digitales tsis yooj yim E-ink tags. A15.6-nti LCD npokhiav kev tshaj tawm ntawm lub endcap xav tau bandwidth uas E- tus lej cim npe tsis ua.
Qhov teeb meem tshwm sim nyob rau hauv ob qhov chaw. Ua ntej, kev siv hluav taws xob. Wi-Fi rub tawm tam sim no ntau dua li BLE lossis Sub-GHz thaum lub sijhawm sib kis. Ib daim ntawv E-ink daim ntawv lo ntawm Sub-GHz xov tooj cua yuav khiav tsib mus rau yim xyoo ntawm lub xov tooj ntawm tes nrog ib mus rau peb qhov hloov tshiab txhua hnub. Tib daim ntawv lo ntawm Wi-Fi? Kaum ob mus rau kaum yim hli. Ntawm qhov ntsuas - ntau txhiab daim ntawv hla ntau lub khw muag khoom - uas txhais tau hais tias ib qho kev hloov roj teeb rov tshwm sim uas koj pab neeg ua haujlwm yuav tsum muaj peev txheej. Thib ob, network congestion. Wi-Fi ESLs sib tw rau airtime nrog POS terminals, cov neeg siv khoom siv, cov khoom siv tes tuav, thiab tus kheej- checkout kiosks. Thaum hnub Saturday tav su peaks, qhov kev sib tw tsis yog theoretical.
Qhov zoo tshaj plaws: cov khw muag khoom lag luam nrog cov paub tab, zoo - engineered Wi-Fi infrastructure, khw muag khoom siv lub zog LCD digital signage (qhov twg roj teeb lub neej tsis cuam tshuam vim cov ntxaij vab tshaus tau ntsaws rau hauv), thiab kev xa tawm ntsuas ntau pua ntau dua li kaum txhiab daim ntawv lo.
Sub-GHz (433/868/915 MHz): Tsis muaj Glamour, Ntev Ntev, Roj Teeb Ntev
Sub- xov tooj cua GHz tsis muaj lub koom haum lag luam uas txhawb nqa nws txoj kev Bluetooth SIG champions BLE. Feem ntau Sub-GHz ESL systems khiav cov txheej txheem tshwj xeeb rau cov chaw tsim khoom. Tsis muaj kev sib koom ua ke profile. Hloov cov neeg muag khoom txhais tau tias hloov tag nrho pawg sib txuas lus.
Thiab tseem, rau qee lub khw muag khoom, physics ua rau nws xaiv qhov ua tau zoo tshaj plaws. Tsawg zaus tsim cov wavelength ntev dua. Ntev wavelengths nkag mus rau hlau shelving, pob zeb faib phab ntsa, thiab refrigerated zaub rooj nyob deb zoo tshaj 2.4 GHz teeb liab. Cov ntaub ntawv tso saib, UK-raws li ESL tus muab kev pabcuam, tsim lawv lub platform tag nrho nyob ib puag ncig Sub-1 GHz rau qhov tseeb vim li no - qhov siab tshaj plaws thiab cov teeb liab nkag mus rau hauv cov chaw muag khoom nyuaj. Ib qho Sub-Ghz qhov chaw nkag tau npog qhov hneev taw loj dua li nws qhov sib npaug BLE lossis Wi-Fi. Cov ntsiab lus nkag tsawg dua txhais tau tias tus nqi qis dua kev tsim kho vaj tse thiab kev npaj sib txuas yooj yim dua.
Lub roj teeb lub neej yog lwm qhov kev txiav txim siab. Silicon Labs 'ESL tsim kev taw qhia qhia tau hais tias ncav cuag tsib mus rau kaum xyoo ntawm CR2032 npib ntawm tes yuav tsum muaj peev nyiaj tam sim no qis dua 10 µA - lawv Sub-GHz FG22 SoC ua tiav 0.17 µA hauv kev pw tsaug zog. Rauloj -format E- cov ntawv cimnyob rau hauv warehouse los yog hypermarket ib puag ncig nrog ib mus rau peb qhov hloov tshiab txhua hnub, Sub-GHz tsis tu ncua muab lub neej ua haujlwm ntev tshaj plaws.
Qhov zoo tshaj plaws: cov khw muag khoom loj thiab loj - cov khw muag khoom loj tshaj 5,000 m², warehouse thiab logistics ib puag ncig nrog cov hlau racking, cov hlua txias thiab cov tub yees, thiab txhua qhov kev xa tawm uas txo qis kev tsim kho thiab ua kom lub roj teeb lub neej ua haujlwm tseem ceeb tshaj bandwidth. Peb cov neeg siv khoom dov tawm E- cov ntawv ntim cov ntawv cim thoob plaws loj - cov khw muag khoom hom tsis tu ncua gravitate rau Sub -GHz.
Sab -los ntawm - Sab Sib piv
| Metric | Bluetooth LE 5.4 | Wi-Fi | Sub -GHz (433/{2}}/915 MHz) |
|---|---|---|---|
| Siv tau hauv -Khoom ntau yam | 10–30 m | 15–35 m | 50–200 m |
| Lub neej roj teeb (E-ink, 1–3 hloov tshiab/hnub) | 3-5 xyoos | 1-2 xyoos | 5-10 xyoo |
| Cov ntaub ntawv dhau los | Nruab nrab | Siab | Tsawg |
| Daim ntawv lo rau Access Point | ~ 32,000 (spec) / pua pua raug | Nws txawv ntawm AP muaj peev xwm | Txhiab rau ib lub rooj vag |
| Gateway Nqi (nruab) | $1,000–$2,000 | Siv lub network uas twb muaj lawm | $500–$1,500 |
| 2.4 GHz cuam tshuam | Yog lawm | Yog lawm | Tsis muaj - cais pawg |
| Qhib Standard | Yog (BLE ESL Profile) | Yog (802.11) | Feem ntau yog tswv |
| Qhov zoo tshaj plaws khw hom | Cov khw muag khoom me me - nruab nrab, chaw muag tshuaj | Enterprise nrog muaj zog IT | Hypermarkets, warehouses |
Txoj Cai Xaiv Ripples Los ntawm Koj Lub Khw Muag Khoom
Ib yam dab tsi raws tu qauv sib piv cov ntsiab lus tsis tu ncua: koj ESL wireless network tsis ua haujlwm hauv kev sib cais. Cov ntsiab lus nkag, tus nqi them rov qab, kev tswj software - tag nrho nws kov lwm cov tshuab digital hauv khw. Yog koj khiavtus kheej -kev pabcuam touchscreen kiosksrau kev txheeb xyuas, cov kiosks rub tus nqi los ntawm tib lub database. Yog tias txee -ntug LCD bar qhia khiav kev txhawb nqa hauv txoj kev, cov ntsiab lus cav pub rau cov ntxaij vab tshaus no tuaj yeem ua rau muaj kev sib tw ntawm koj E- cov ntawv cim npe - tab sis tsuas yog cov tshuab sib koom ua ke API txheej txheem.
Peb tau pom cov txiaj ntsig huv tshaj plaws thaum cov neeg siv khoom npaj lawv qhov kev xa tawm ESL nrog rau lawv cov kiosk thiab cov ntawv kos npe digital, tsis yog peb qhov haujlwm IT cais. Thaum tus nqi uas tus neeg siv khoom pom ntawm lub txee dai khaub ncaws, lub qhov kawg ntawm lub vijtsam LCD, thiab tus kheej - cov khoom xa tawm tag nrho cov khoom noj los ntawm ib qhov chaw, tus nqi tsis txaus siab - ib qho kev sib txhuam loj tshaj plaws hauv khw muag khoom noj - poob zero.
Peb lo lus nug ua ntej koj cog lus
Koj txoj kev npaj pem teb zoo li cas?Lub tsev muag tshuaj 400 m² thiab 12,000 m² hypermarket yog qhov sib txawv hauv xov tooj cua. BLE ua haujlwm thawj zaug nrog ob lossis peb lub ntsiab lus nkag. Qhov thib ob tej zaum yuav xav tau Sub-GHz kom tsis txhob littering lub qab nthab nrog lub rooj vag.
Cov ntsiab lus twg koj tab tom nthuav tawm?Tus nqi zoo nyob ntawm E-ink? Txhua txoj cai tswj hwm qhov ntawd. Cov yeeb yaj kiab txhawb nqa ntawm cov ntxaij vab tshaus LCD? Koj xav tau Wi-Fi's throughput. Flash nqi uas hloov ntau zaus hauv ib teev? Paub meej tias koj cov txheej txheem tuaj yeem txhawb nqa lub ntim hloov tshiab yam tsis muaj roj teeb ntws ntxov ntxov.
Dab tsi ntxiv qhia koj cov airwaves?Ib lub khw twb saturated ntawm 2.4 GHz - neeg siv Wi-Fi, IoT sensors, handheld scanners - yuav tawm tsam nrog lwm 2.4 GHz system txheej txheej saum toj. Sub-GHz ua haujlwm hauv ib pawg neeg tsawg tsawg nkaus xwb.
Tsis muaj ib txoj cai yog universally zoo tshaj plaws. Yog tias koj tus neeg muag khoom ESL tsuas yog muab ib qho kev xaiv wireless thiab tsis tuaj yeem piav qhia qhov twg nws luv luv, qhov ntawd qhia koj qee yam. Yog tias koj xav kuaj cov ntawv hla cov txheej txheem hauv koj lub khw muag khoom tiag tiag ua ntej ua qhov ntsuas,thov cov qauv ntsuas- ob lub lis piam nyob rau hauv ib qho chaw nyob qhia ntau tshaj li ib daim ntawv spec lossis tus neeg muag khoom swb lawj.
