Panon ya Mitongtong iray RFID Tag ed Saray Manbabasa?

 

Saray passive tag et manpapaandar ed naala ya RF ya enerhiya. Say manbabasa et mangipapasabi na tuloytuloy ya daluyon ed 902-928 MHz ed North America, 865-868 MHz ed Europe. Say tag antenna et mangala na daiset ed satan ya pakayari-ya magenap pian napaandar so chip ya mangaala na manga 15-20 microwatts. Say chip et manguuman ed impedance na antenna to pian napawil so signal panamegley na encoded data. Saya so backscatter.

Inkobre nen Daniel Dobkin so nipaakar ed link budget math diad "The RF in RFID" nen 2007. Say libro so siansia nin reperensya ya uusaren na karaklan ya integrator. Say Passive UHF read range et onsabi ed 10-15 metros diad paway na dagem. Saray totoon deployment et mas daiset so nanenengneng da.

Say komunikasyon na Tag-to-reader et manguusar na FM0 odino Miller encoding ed sakey a subcarrier. Say Reader-to-tag et manguusar na PIE. Say Gen2 spec manlapud GS1 EPCglobal so mangiter na kabaliksan ed interon air interface. Say bersion 2 et angiyarum na pigaran security features ya ngalngali anggapoy manguusar lapud mas mabmabli iray chips.

 

 

Say Frequency Mess

 

Say FCC Part 15 et mangiiter na RFID 902-928 MHz ya anggad 4 watts EIRP ya walay frequency hopping. Say ETSI et manlimitad Europe ed 865.6-867.6 MHz ed 2 watts ERP. Nanduruma met so paraan na panagsukat na pakayari-EIRP kumparad ERP-ya mamapawetwet ed totoo no ikompara iray specs ed nanduruman rehyon.

Inlukas na China so 920-925 MHz. Say Japan et mangiiter na 916-921 MHz balet ta walay pankaukolan ya ondengel antis ya mansalita ya mamakomplikado ed desinyo na manbabasa. Say tag ya ginawa parad merkado na US et onkikiwas ed Europe balet ta ag-onkikiwas so antenna tuning. Nawalaan ka na pigaran dB. Importante itan no wala ka lad gilig na budget na link.

 

13.56 MHz et duma

 

Say HF RFID ed 13.56 MHz et manguusar na inductive coupling, aliwan radiation. Asingger labat ed-field. Say reader et walay coil to, say tag et walay coil to, say magnetic field et mangikokonekta ed sikara diad loob na sakey metro. Say tag et mankarga tan mangibaba na coil to pian na-modulate so signal ya nanengneng na manbabasa ed antenna to. ISO 14443 parad saray proximity card, ISO 15693 parad saray vicinity card. Nanduruman protocol, nanduruman read range, nanduruman use cases.

Say NFC et manunan 14443 tan pigaran peer-to-peer modes. Say teleponom et walay NFC to. Say badge yo ed opisina et nayarin 14443 odino iCLASS odino DESFire, depende no kapigan in-install na kompanya yo so sistema.

Say LF ed 125-134 kHz et parehon konsepto balet nayarin mas antikey ni so distansya to. Siansia nin uusaren parad saray tag na ayep lapud saray abeban frequency et onloloob ed tissue.

 

 

Panbabanggaan

 

Say dakel ya tag ya oneebat ya mankakasakey et naasikaso na Slotted ALOHA ed Gen2. Saray tag et manpipili na random ya slot. I-adjust na reader so Q parameter pian nasukat so frame. Maong so epekto to parad imbentaryo balet ta maples ya onkupas so throughput no walaan kay nilasus ya tag ed lawak tan kapaldua ed sikara et aliwan maong so inka-orient to.

Say Auburn University et angipalapag na read rate data ya mangipapanengneng na 1000+ tags kada segundo diad sankaabigan iran kondisyon. Anggapoy makanengneng ed satan diad bodega.

Say panagsukimat ed anti-collision et sakey ya interon subfield. Sakey a surbi ed Computer Networks nen 2024 so angilista na masulok ya 50 ya algorithm. Tree-based, ALOHA variants, hybrid approaches. Maslak ed saray akademikon kimey et ag da ikokonsidera iray limitasyon ed tua a singa say gastos ed panagbasa tan say inkatunosan na protocol.

 

Walmart

 

Ginmapo so Walmart ya mangiganggan na RFID ed kawes nen 2020. Inlaknab to ed mas dakel nin kategorya nen 2022. Nen fall 2024 say ganggan et sakop to ray muebles, suplay na ayayep, parte na luluganan, tan dakel ni ran bengatla. Say RFID Lab na Auburn so mangaasikaso ed sertipikasyon na tag. Saray supplier ya ag makaawat na sertipikasyon et ag nayarin mangipawit ed Walmart.

Saray ganggan so amawala na presyo na inlay. Mankulang ed-apatiran sentimo natan so karakel to. Pigaran taon lay apalabas et pito, waloran sentimos.

"Say ROI et apaneknekan la," so ibabaga na saray totoo ed Walmart diad saray komperensya. Saray kakompetensya et ontutumbok. Say Target et walay sarili ton programa. Say Amazon et manguusar na RFID ed pigaran fulfillment center balet aliwan diad publiko.

 

Saray Paraan na Inkagba

 

Say UHF et ag-onkikiwas a maong ed kaliberliber na metal odino likido. Mairap ya basaen so sakey a paleta na de-lata. Saray bodega ya walay steel racking et manggagawa na multipath interference. Diad-metal tag designs et walay-foam spacer ed baetan na chip tan say metal ya tapew-balet mas mabli iratan, talora anggad limaran danay ed estandarten inlay.

Ompatey iray tag. Aromog nen Auburn so 2-3% DOA odino masakbay ya inkagba ed sakey ya impanaral. Manbitak iray tipak, manbabalang iray koneksyon na antenna, onkapuy so inlay adhesive. Saray programa ed tindaan ya dakel so bilang da et ipapasen da iya ed saray modelo na gastos da. Saray mas melag ya manguusar et nabigla.

 

 

FASTag

 

Say India et angi-deploy na masulok ya 60 milyon ya UHF windshield tags parad electronic toll collection manlapud 2019 anggad 2023. Tags manlapud nanduruman vendor, saray manbabasa manlapud nanduruman vendor, backend integration ed nanduruman toll operators. Maslak et onkikiwas itan. Say lane throughput et atagey. Say panag-asikaso na kuarta et abeba.

Say China et mas matantan ed retail RFID nen say inisip na totoo samploran taon lay apalabas. Saray ganggan na gobierno ed tambal tan tabako. Say panagsubaybay ed logistics ed pigaran sektor. Balet aliwan say Walmart-style item-level rollout ya nepeg komon ya nagawa.