Ezinyangeni ezimbili ezedlule, uchungechunge lwezitolo ezinkulu-ezinosayizi ophakathi e-Southern Europe basicela ukuthi sicaphune ukukhishwa kwelebula yeshalofu ye-electronic ezitolo ezingu-22. Ithimba labo lokuthenga bese lifakwe amasistimu amathathu ahlukene - eyodwa esebenzisa i-Bluetooth LE, eyodwa ku-Wi-Fi, neyodwa kumsakazo wobunikazi ongu-433 MHz. Umthengisi ngamunye wayethi eyakhe yayihamba phambili. Akekho owachaza ukuthi empeleni kwakubi kakhulu ngaphansi kwaziphi izimo. Leyo ngxoxo yasiqinisekisa ukuthi sibhale lesi siqeshana.
Imindeni emithathu yephrothokholi engenantambo ibusa ukusetshenziswa kwe-ESL okwamanje: I-Bluetooth Low Energy (BLE, ikakhulukazi kusukela ekucacisweni kwe-5.4), i-Wi-Fi, nerediyo ye-Sub-GHz (433 MHz e-Asia, 868 MHz e-Europe, 915 MHz eNyakatho Melika). Iphrothokholi ngayinye ixazulula inkinga yangempela. Ngayinye idala ama-tradeoffs adlalwa kancane izincwajana zabathengisi. Nakhu esikubonile kuzo zonke izindawo zezitolo zangempela.
I-Bluetooth LE: I-Open Standard, Isakhula Ngesikali
I-Bluetooth inomfutho ongathi sína ngemuva kwayo. I-Bluetooth SIG ishicilele iPhrofayela ye-ESL ezinikele eyakhelwe ku-PAwR ye-Bluetooth 5.4 (Ukukhangisa Kwezikhathi Ezithile Ngezimpendulo) ifaka - indlela evumela indawo eyodwa yokufinyelela ukuthi isakaze imiyalo ezinkulungwaneni zamalebula ezikhaleni zesikhathi ezihleliwe, bese ithola izimpendulo ngaphandle kokuthola ukuxhumana ngakunye.
I-Silicon Labs ihlole lokhu kunethiwekhi ye-node engu-1,500-kulebhu yayo. I-EM Microelectronic ithumele i-em|bleu SoC ku-1.8×1.8 mm nje eno-200 nA ubuthongo obujulile - incane ngokwanele futhi yonga ngokwanele ukuba ingene ngaphakathi ngisho nangaphakathi.compact 2.66-omaka be-E-ink abayintshi. Ngamadivayisi e-Bluetooth angaphezu kwezigidigidi ezi-5 ezithunyelwa minyaka yonke, izindleko zengxenye zizuza kumnotho omkhulu wesilinganiso.
Kubathengisi, okungaphezulu okusebenzayo ukuguquguquka komthengisi. Izinga elivulekile lisho ukuthi - okungenani ngokomgomo - ungahlanganisa izindawo zokufinyelela kumhlinzeki oyedwa namalebula aphuma komunye. Lokho wukusuka okuphusile kukhiye womthengisi{4}}okuhlasele i-ESL iminyaka. Amaza obuthongo angaphansi kuka-2 µA ajwayelekile kuma-chipset e-BLE ESL, futhi i-Bluetooth 5.4 spec isekela amalebula cishe angu-32,600 inethiwekhi yendawo yokufinyelela ngayinye ephepheni.
Ukubamba: "ephepheni" kunendaba lapha. -Ukuthunyelwa kwegrosa okukhulu ku-BLE kusekuncane uma kuqhathaniswa namasistimu obunikazi asebenze iminyaka eyishumi. I-Rigado, umthengisi wesango le-IoT osebenza nge-ESL, ubeka izindleko zesango ngalinye ku-$1,000 ukuya ku-$2,000 efakiwe - futhi isuphamakethe enkulu ingase idinge ishumi noma ngaphezulu. I-BLE isebenza ku-2.4 GHz, yabelana nge-spectrum{{10}nomzila we-WiFi, amafoni ekhasimende, ama-microwave, nawo wonke amanye amadivayisi angenantambo esakhiweni. Esitolo esimatasa, lokho kuminyana kungabambezela ukubuyekezwa kwentengo phakathi namahora aphakeme.
Okulingana kahle kakhulu: amakhemisi, izindawo zokuthenga, nezitolo{0}}zosayizi omaphakathi ezingaphansi kuka-2,000 m² - ikakhulukazi lezo esezivele zisebenzisa amabhikhoni e-BLE okulandelela amafa. Ukuthola abathengisi5.8-amalebula eshalofu anekhono le-BLEleso sibuyekezo esivela kuthebhulethi ngaphandle kwengqalasizinda esindayo sizothola le phrothokholi ikhanga.
I-Wi-Fi: Sebenzisa Inethiwekhi Yakho Ekhona - Kodwa Ibhajethi Yamabhethri
Iphimbo liqondile: isitolo sakho sesivele sine-Wi-Fi yebhizinisi-kuzo zonke izinkundla, ngakho yeqa amasango amasha bese uxhuma ama-ESL akho ngqo kunethiwekhi ekhona. Emaketangeni amakhulu amabhizinisi asetshale imali eningi ezindaweni zokufinyelela ezentengiselwano ezinokufakwa okugcwele, izibalo zokuhlanganisa zibukeka zikhanga.
I-Wi-Fi iphinde ilethe ukudlula kwedatha okuphezulu kune-BLE noma i-Sub-GHz. Leyo nzuzo iba ebonakalayo uma uphusha okuqukethwe okucebile okuyisithombe - kwezithombe zomkhiqizo, izithombe ezinyakazayo ezikhangisayo - ukuzeLCD-izikrini zentengo yedijithalikunomaka E{0}}alula kayinki. AIsikrini se-LCD esingu-15.6-intshiukwenza amaphromoshini ku-endcap kudinga umkhawulokudonsa -omaka bentengo kayinki abangawutholi.
Inkinga ibonakala ezindaweni ezimbili. Okokuqala, ukusetshenziswa kwamandla. I-Wi-Fi idonsa kakhulu manje kakhulu kune-BLE noma i-Sub-GHz phakathi nomjikelezo wokudlulisela ngamunye. Ilebula ye-E-kayinki kumsakazo we-Sub-GHz ingase isebenze iminyaka emihlanu kuya kweyisishiyagalombili kuseli lwemali enokubuyekezwa kwansuku zonke okukodwa kuya kwemithathu. Ilebula efanayo ku-Wi{8}Fi? Izinyanga eziyishumi nambili kuya kweziyishumi nesishiyagalombili. Esikalini - izinkulungwane zamalebula kuzo zonke izitolo eziningi - okusho ukuthi uhlelo oluqhubekayo lokushintsha ibhethri ithimba lakho lemisebenzi kufanele lilusebenzise. Okwesibili, ukuminyana kwenethiwekhi. Ama-Wi-Fi ESL aqhudelana ngesikhathi somoya namatheminali e-POS, amadivayisi ekhasimende, izikena eziphathwa ngesandla, kanye{15}}namakhikhiwo wokuzikhipha. Phakathi neziqongo zantambama zangoMgqibelo, lowo mncintiswano awulona itiyetha.
Okufaneleka kakhulu: abathengisi bebhizinisi abanengqalasizinda ye-WiFi evuthiwe,{1}ethuthukiswe kahle,{1}}izitolo ezisebenzisa izimpawu zedijithali ze-LCD ezinamandla (lapho ukuphila kwebhethri kungenamsebenzi ngoba izikrini zixhunyiwe), kanye nokusetshenziswa kukalwa ngamakhulu esikhundleni samashumi ezinkulungwane zamalebula.
I-Sub-GHz (433/868/915 MHz): Akukho Ubuhle, Ibanga elide, Ibhethri ende
Irediyo ye-Sub{{0}GHz ayinawo umkhakha wokumaketha oyithuthukisayo ngendlela i-Bluetooth SIG engompetha be-BLE ngayo. Iningi lamasistimu e-Sub-GHz ESL asebenzisa amaphrothokholi obunikazi aqondene nomkhiqizi welebula. Ayikho iphrofayela yokusebenzisana. Ukushintsha abathengisi kusho ukufaka esikhundleni sonke isitaki sokuxhumana.
Futhi nokho, kumafomethi athile esitolo, i-physics ikwenza kube yisinqumo esisebenziseka kakhulu. Amafrikhwensi aphansi akhiqiza amaza amade amade. Amaza amade amade angena kumashalofu ensimbi, izindonga zokuhlukanisa ukhonkolo, namakesi wokubonisa afakwe esiqandisini ngempumelelo kakhulu kunamasiginali angu-2.4 GHz. I-Display Data, umhlinzeki we-ESL ose-UK{{4}osekelwe e-UK, wakhe inkundla yawo yonke eduze kwe-Sub-1 GHz ngenxa yalesi sizathu - ubukhulu bobubanzi nokungena kwesignali ezindaweni eziyinkimbinkimbi zokuthengisa. Iphoyinti lokufinyelela le-Sub-GHz elilodwa limboza isigxivizo esikhulu kakhulu kune-BLE noma okulingana ne-Wi-Fi. Izindawo zokufinyelela ezimbalwa zisho izindleko eziphansi zengqalasizinda kanye nokuhlelwa kwenethiwekhi okulula.
Impilo yebhethri ingesinye isici esibalulekile. Isiqondiso sedizayini ye-ESL ye-Silicon Labs sicacisa ukuthi ukufinyelela iminyaka emihlanu kuya kweyishumi kuseli lohlamvu lwemali lwe-CR2032 kudinga isabelomali samanje esimaphakathi esingaphansi kuka-10 µA - i-Sub-GHz FG22 SoC yabo ifinyelela u-0.17 µA ebuthongweni obujulile. Ngoba-amalebula kayinki wefomethi E{1}enkuluendaweni yokugcina impahla noma endaweni ye-hypermarket enokubuyekezwa okukodwa kuya kokuthathu nsuku zonke, i-Sub-GHz ihlale iletha impilo yokusebenza ende kakhulu.
Okufaneleka kakhulu: ama-hypermarket kanye-nezitolo ezinkulu zamabhokisi angaphezu kuka-5,000 m², indawo yokugcina izimpahla nezindawo zokuthutha ezinamarakhi ensimbi, iketango elibandayo nezindawo eziqandisiwe, nanoma yikuphi ukuthunyelwa lapho ukunciphisa ingqalasizinda nokukhulisa ukuphila kwebhethri kubaluleke kakhulu kunomkhawulokudonsa. Amakhasimende ethu akhipha amalebula eshalofu kayinki engu-E-ezitolo ezinkulu{5}}ezinkulu ahlala edonsa ku-Sub-GHz.
Eceleni-by{1}}I-Side Comparison
| Imethrikhi | I-Bluetooth LE 5.4 | I-Wi-Fi | I-Sub-GHz (433/868/915 MHz) |
|---|---|---|---|
| Isebenza-Kububanzi Besitolo | 10–30 m | 15–35 m | 50–200 m |
| Impilo Yebhethri (E-inki, 1–3 izibuyekezo/ngosuku) | Iminyaka engu-3-5 | Iminyaka engu-1-2 | Iminyaka engu-5-10 |
| Ukudluliswa kwedatha | Kuphakathi | Phezulu | Phansi |
| Amalebula nge-Access Point | ~ 32,000 (spec) / amakhulu ajwayelekile | Iyahluka ngomthamo we-AP | Izinkulungwane ngesango ngalinye |
| Izindleko zesango (zifakiwe) | $1,000–$2,000 | Isebenzisa inethiwekhi ekhona | $500–$1,500 |
| 2.4 GHz Ukuphazamiseka | Yebo | Yebo | Alikho - ibhendi ehlukene |
| Vula Okujwayelekile | Yebo (BLE ESL Profile) | Yebo (802.11) | Okuphathelene kakhulu |
| Ifomethi Yesitolo Engcono Kakhulu | Izitolo ezincane ezimaphakathi, amakhemisi | Ibhizinisi eline-IT eqinile | Ama-hypermarkets, ama-warehouse |
I-Protocol Choice Ripples Ngesitolo Sakho Sonke
Okuthile izindatshana zokuqhathanisa zephrothokholi zihlala zigeja: inethiwekhi yakho engenantambo ye-ESL ayisebenzi yodwa. Izindawo zokufinyelela, imuva lentengo, isofthiwe yokuphatha - konke kuthinta amanye amasistimu edijithali esitolo. Uma ugijima-izinsiza zesikrini esithintwayo kiosksukuze uphume, lawo makhiwokhi adonsa amanani kusizindalwazi esifanayo. Uma ishalofu- libonisa ibha ye-LCD enqenqemeni lisebenzisa amaphromoshini, injini yokuqukethwe ephakela lezo zikrini ingase iqalise imikhankaso E{2}}kumalebula kayinki wakho - kodwa kuphela uma amasistimu abelana ngesendlalelo esivamile se-API.
Sibone imiphumela ehlanzeke kakhulu lapho amakhasimende ehlela ukuthunyelwa kwe-ESL yawo eduze kwekhiyoski yawo kanye nokukhishwa kwezimpawu zedijithali, hhayi njengamaphrojekthi amathathu ahlukene e-IT. Uma inani ikhasimende elilibonayo kumaka eshelufu, kusikrini se-LCD se-endcap, kanye{1}netheminali ye-checkout yakho konke okuphakelayo okuvela emthonjeni owodwa, izikhalazo zentengo - indawo eyodwa enkulu yokungqubuzana kwegrosa - yehla cishe kuqanda.
Imibuzo Emithathu Ngaphambi Kokuzibophezela
Libukeka kanjani ipulani yakho yaphansi?Ikhemisi elingu-400 m² kanye ne-hypermarket engu-12,000 m² yizindawo zomsakazo ezihlukene. I-BLE isingatha eyokuqala ngamaphoyinti okufinyelela amabili noma amathathu. Eyesibili cishe idinga i-Sub-GHz ukuze igweme ukuthela udoti ophahleni ngamasango.
Yikuphi okuqukethwe okubonisayo?Izintengo ezimile ku-E-inki? Noma iyiphi iphrothokholi iphatha lokho. Amaphromoshini wevidiyo ezikrinini ze-LCD ezinamandla? Udinga-i-output ye-WiFi. Intengo ye-flash eshintsha izikhathi eziningi ngehora? Qinisekisa ukuthi iphrothokholi yakho ingagcina ivolumu yokubuyekeza ngaphandle kokukhipha amabhethri ngaphambi kwesikhathi.
Yini enye eyabelana nge-airwaves yakho?Isitolo esesivele sigcwele ku-2.4 GHz - ikhasimende Wi-Fi, izinzwa ze-IoT, izikena eziphathwa ngesandla - zizoshikashikana nenye isistimu engu-2.4 GHz ebekwe phezulu. I-Sub-GHz isebenza ngebhendi enabantu abaningi kancane.
Ayikho iphrothokholi eyodwa ehamba phambili emhlabeni jikelele. Uma umphakeli wakho we-ESL ekunikeza kuphela inketho eyodwa engenantambo futhi engakwazi ukuchaza lapho efika khona, lokho kukutshela okuthile. Uma ufuna ukuhlola amalebula kuwo wonke amaphrothokholi esitolo sakho sangempela ngaphambi kokwenza esikalini,cela amasampula okuhlola- amaviki amabili endaweni eyodwa ebukhoma aveza okungaphezu kwanoma yiliphi ishidi elicacisiwe noma ideski lama-slide lomthengisi.
