Sɛnea UHF RFID EAS Tag De Ne Alarm Siw: Chip-Level Story Adetɔnfo Dodow no ara Huw

Adetɔnfo bi de UHF tag ahorow gu mu a ɔhwɛ kwan sɛ nkyerɛwde biara a ɛwɔ jacket so no bɛyɛ komm ayɛ nnwuma abien prɛko pɛ: ma nneɛma a wɔkora so nhyehyɛe no EPC soronko bi, na sɛ saa jacket no fi adi a wontua hwee a, ɔteɛm wɔ ɔpon no ano. Adwuma a edi kan ne nea wɔyɛɛ RAIN RFID maa. Nea ɛtɔ so mmienu ne baabi a nnwuma pii hu sɛ UHF RFID EAS dwumadie no nyɛ flip-a-switch feature a datasheet bullet point kyerɛ no. Ɔkwan a ɛda "chip no boa EAS" ne "alarm no tow ankasa wɔ wo kwan a wofi mu" ntam no yɛ nea nhyehyɛe nsɛmfua, akwan a wɔfa so kɔ hɔ, ne akenkanfo firmware a ɛka ahyɛde a ɛfata anaasɛ ɛnyɛ komm no ahyɛ mu ma. Eyi yɛ nantew a ɛfa saa ɔkwan no mu, fi silicon no so.

 

 

Alarm ahyɛdeɛ a Gen2 gyinapɛn no amfa nnadewa ansi fam da

 

Adeɛ a ɛbɔ trip up dodoɔ no ara first-bere integrators ni. GS1 EPC UHF Gen2v2 mframa ntam nkitahodi, protocol koro no ara a wɔahyɛ no gyinapɛn sɛnea ISO/IEC 18000-63, kyerɛ sɛnea ɔkenkanfo bi yɛ inventory, kenkan, kyerɛw, to mu, kum, na mpo ɔde tag bi sie a wontumi nhwehwɛ. Ɛnkyerɛkyerɛ ahyɛdeɛ baako a ɛyɛ ahyɛdeɛ sɛ wɔde hwɛ ɛlɛtrɔnik asɛm so a ɛsɛ sɛ 860–960 MHz chip biara di so. Enti anti-korɔnbɔ suban wɔ UHF label so yɛ chip-vendor ntrɛwmu, ɛnyɛ protocol guarantee, ɛno nti pɛpɛɛpɛ na inlays abien a abien no nyinaa bɔ RFID EAS mmoa ho dawuru no betumi ayɛ wɔn ade wɔ akwan a ɛne ne ho nhyia koraa so wɔ apon koro no ara so.

 

Ɛboa ma yɛkae nea EAS yɛ wɔ asɛmfua a wɔatwa no tiaa no ase. Classic electronic article surveillance yɛ nhyehyɛe a ɛwɔ afã abiɛsa-: tag a ɛwɔ ade no so, deactivation anaa detach step wɔ beae a wɔtɔn, ne antenna pedestals wɔ exit a ɛma alarm so bere a wohu tag a wɔannye akode da. Legacy RF, acousto-magnetic, ne electro-magnetic nhyehyɛe ahorow de tuned resonant circuit a enkura identity biara na ɛyɛ eyi: apon no nimbiribirefi hɔ, dabidɛn. Saa adwuma koro no ara a wɔpia kɔ UHF RFID tag so no sesa abɔde mu nneɛma ne data nhwɛso no, na ɛkame ayɛ sɛ gyinapɛn no kommyɛ wɔ sɛnea wɔyɛ no ho no ne ahodwiriw biara a edi hɔ no ntini.

 

 

A dedicated EAS bit versus nea wo di adwini fi memory mu

 

Sɛ chip bi nni native anti-theft frankaa a, adwuma a wɔtaa yɛ ne sɛ wɔbɛyɛ no sɛnea wɔyɛ no. Wode bits baako anaa nea ɛboro saa sie wɔ EPC bank anaa user memory bank no mu, kyerɛkyerɛ value bi a ɛkyerɛ sɛ "armed," kyerɛw no bere a encoding reyɛ, na wo program exit reader no sɛ ɔmfa parse saa bits no mu bere biara a ɛbɛyɛ inventories tag bi. Saa kwan a wɔayɛ no sɛnea ɛte yi a wɔfa so yɛ UHF EAS bit no yɛ amansan de ankasa, ɛyɛ adwuma wɔ Gen2 chip biara a ɛne mmara hyia so a nea ɔtɔn no mfa ho, nanso ɛtɔ saa amansan nyinaa de no wɔ ɛka ankasa mu wɔ ahoɔhare ne ahotew mu.

 

Ntotoeɛ a ɛwɔ aseɛ ha yi yɛ trade-off a ɛfata sɛ wode hyɛ wo mu ansa na wode inlay ahyɛ adwuma bi mu:

 

Nsusuwii	EAS a ɛyɛ kurom hɔfo (PSF bit) .	Simulated EAS (EPC / ɔdefo-nkae bits) .
Chip ahwehwɛde	Chips a ɛde di dwuma nkutoo (sɛ nhwɛso no, UCODE abusua) .	EPC Gen2v2 chip biara
Alarm ahoɔhare	EAS_Alarm biako a ɛyɛ ntɛmntɛm, asiesie 64-bit mmuae afi tebea a wɔasiesie mu	Full inventory + bit parsing wɔ akenkan biara so
Backend a ɛde ne ho to so	Ɛnyɛ ebiara; status te ase wɔ tag no so	Akenkanfo ntease (na mpɛn pii no ɔhwehwɛ) na esi gyinae
Akenkanfo adesoa	Ɛsɛ sɛ ɛboa vendor command no, anyɛ saa a ɛhwe ase	Ɛsɛ sɛ wɔyɛ nhyehyɛe ma wɔkenkan na wɔkyerɛ custom bits ase
Portability a ɛfa chips ho	Fam; adetɔnfo-a ɛyɛ pɔtee	Soro; yɛ adwuma wɔ baabiara

 

Baabi a saa UHF EAS nkabom ahorow yi bubu ankasa

 

Eyi ne ɔfã a spec sheets no nkyerɛw da, na ɛhɔ na supplier a ne ho akokwaw nya wɔn keep. "EAS bit no rensesa" mmoa tekiti a ɛtaa ba no ne tag a asɛe no nni hwee yɛ. Chip ahyɛde spec no nyɛ nea emu nna hɔ wɔ saa asɛm yi ho: ChangeEAS yɛ adwuma fi Secured tebea no nkutoo mu, na bere a access password no da so ara wɔ ne nyinaa-zero factory default no, wobu ani gu ahyɛde no so komm, na ɛma tag no wɔ tebea biara a na ɛwɔ mu dedaw no mu (NXP). Mpɛn akron wɔ du biara mu a wosiesie ma RFID EAS deactivation nhyehyɛe a agyina hɔ ara ne sɛ wobɛhyehyɛ non-zero access password ansa na woabɔ mmɔden da sɛ wode frankaa no bɛhyɛ akode.

 

 

Wɔ yɛn ankasa encoding lines so no yɛfa "password set, afei arm PSF, afei kenkan san 64-bit code no si so dua" sɛ anammɔn abiɛsa a ɛnyɛ-negotiable, efisɛ skipping akenkan-akyi ne sɛnea reel mũ a tags hyɛn fi adi hwɛ akode na wɔyɛ wɔn ade a wonni akode.

 

Ɔkenkanfo fã no wɔ n’ankasa huammɔdi kwan a ɛyɛ komm. Sɛ exit reader no firmware no amfa EAS_Alarm ahyɛdeɛ a wɔatu ho ama no nni dwuma da a, detection wɔ RFID EAS system mu da so ara yɛ adwuma: wosan hwe ase kɔ Select a wode bɛma atia nhyehyeɛ asɛmfua no frankaa na afei Query, na woayɛ inventory nko ara tags no. Ɛyɛ adwuma, nanso ɛyɛ brɛoo sen one-shot alarm ahyɛde no, na wɔte saa latency no nka wɔ baabi a anyɛ yiye koraa no wubetumi atɔ: ɔpon a adagyew nnim wɔ dapɛn awiei ahopere mu. Ɛha na variable dodow no ara suppliers remfa nkyerɛw. Wɔ yɛn ankasa bench sɔhwɛ mu no, EAS_Alarm mmoa a wɔatu wɔn ho ama wɔ akenkanfo a wɔasiesie wɔn ho titiriw a yɛne wɔn yɛ adwuma no nyinaa nyɛ amansan de koraa, enti ansa na wobɛhyɛ inlay no ɛfata sɛ wobisa akenkanfo pɔtee no-plus-chip pairing a na wɔagye atom ankasa, ɛnyɛ generic "compatible" checkbox.

 

So woda so ara hia RF apon a ɛwɔ ɔpon no ano no?

 

Ɛnne a ɛsɔ hwɛ ne sɛ UHF ma atetesɛm mu nnyinaso yɛ nea ne bere atwam. Mfiridwuma ho mmuaeɛ a ɛyɛ nokware ne sɛ ɛnnya, anyɛ yie koraa no, ɛnnya mmaeɛ, na sɛ wɔyɛ wɔn ho sɛ ɛnte saa a, ɛyɛ ɔkwan a wotumi de ho to so a wɔfa so hwɛ adehwere-siw ano dodoɔ a ɛyɛ kɛseɛ. Nea UHF de ka ho ne item-level intelligence: afei apon no betumi aka akyerɛ wodeɛ ɛwɔ heSKU kɔe ne bere a, ɛnyɛ sɛ alarm bi bɔɔ kɛkɛ. Nea ɛnyɛ nea ɛde ka ho ara kwa ne tag a ɛyɛ den ne pedestal a wɔde siw ano pefee, a wotumi hu, na deterrence reyɛ adwuma pii sen spreadsheet dodow no ara credit.

Nea akontaabu ahorow no bu no bem ankasa

 

Sɛ yɛsan yɛn akyi fi silicon no so a, adwumayɛ ho asɛm a ɛfa tagging ho koraa no fata sɛ yɛka wɔ akontaabu a wo sikasɛm kuw no behu mu. U.S. aguadidan ahorow so tew duu bɛyɛ dɔla ɔpepepem 112.1 wɔ sikasɛm afe 2022 mu, bɛyɛ nea wɔtɔn no 1.6%, sɛnea National Retail Federation ahobammɔ nhwehwɛmu kyerɛ no (NRF). Wɔn a wɔde wɔn ho to ɔfã a wɔfa wɔn sɛ wɔn mma no ho akyinnye kɛse. Na adetɔnfoɔ akɛseɛ bɛyɛ nkyem anan mu mmiɛnsa-a wɔde RFID redi dwuma dedaw anaasɛ wɔreyɛ nhyehyɛeɛ sɛ wɔde bɛyɛ adwuma wɔ mfeɛ mmienu ntam, na marquee deployments no afiri inventory-kɔ nko ara mu akɔ adehwereɛ a wɔhunu mu.

 

UHF EAS tag a wobɛpaw a ɛrenkyekyere wo

 

Nneɛma a wɔde paw nneɛma	Nea ɛsɛ sɛ wosi so dua
Chip anti-korɔnbɔ mmoa	Native PSF/EAS_Alarm, anaasɛ wobɛyɛ simulating ne EPC/user-memory bits?
Ɔkenkanfo ahyɛde a ɛne ne ho hyia	So exit reader firmware no de adetɔnfo alarm ahyɛde koro no ara di dwuma?
Frequency ɔmantam	Wɔayɛ wo gua so slice a ɛyɛ 860–960 MHz (sɛ nhwɛso no. 902–928 vs 865–868)?
Ɔkwan a wɔfa so yɛ ade	Soft label, hard tag, anaa dual-tech inlay a ɛbɛtra apon a ɛwɔ hɔ dedaw no nkyɛn?
Encoding & nokwaredi	So wɔahyɛ access password no na wɔakenkan akodeɛ tebea no-san{1}}agye atom wɔ adwumayɛbea hɔ?

 

Gyinaesi mmara a yɛadi kan ahyɛ bɔ no ni, deɛ ɛsiesie native-versus-simulated asɛmmisa no: sɛ wo dwumadie no tu mmirika wɔ chip abusua baako, a ɛyɛ den a ɛwɔ PSF ankasa so a, fa native bit no di dwuma na fa ahoɔhare no; ɔkwan a wɔayɛ no sɛnea ɛte no yɛ compatibility patch, ɛnyɛ feature a ɛsɛ sɛ wo nsa ka denam paw so. Bere a wuntumi ankasa nni silicon a ɛba fam wɔ inlay biara mu so nkutoo na simulated EAS nya ne keep. Sɛ woreyɛ speccing UHF EAS ahobammɔ tag nhyehyɛe bi mprempren a, yɛnUHF a wɔahyɛ da ayɛ ne -nneɛma RFID tag options soronkone nea ɛtrɛw noUHF RFID tag a ɛwɔ hɔyɛ mfiase a ɛfata.

 

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