{"id":14960,"date":"2026-03-26T03:35:43","date_gmt":"2026-03-26T03:35:43","guid":{"rendered":"https:\/\/custom-rfid-tags.com\/?p=14960"},"modified":"2026-03-26T03:35:45","modified_gmt":"2026-03-26T03:35:45","slug":"active-vs-passive-rfid","status":"publish","type":"post","link":"https:\/\/custom-rfid-tags.com\/cs\/active-vs-passive-rfid\/","title":{"rendered":"Aktivn\u00ed a pasivn\u00ed RFID: jak\u00e9 jsou rozd\u00edly"},"content":{"rendered":"

Technologie RFID se hojn\u011b vyu\u017e\u00edv\u00e1 v modern\u00edch sledovac\u00edch a identifika\u010dn\u00edch syst\u00e9mech. RFID pom\u00e1h\u00e1 automatizovat sb\u011br dat bez p\u0159\u00edm\u00e9ho kontaktu nebo bez skenov\u00e1n\u00ed v p\u0159\u00edm\u00e9 viditelnosti, od maloobchodn\u00edch z\u00e1sob a p\u0159\u00edstupov\u00fdch karet a\u017e po sledov\u00e1n\u00ed majetku ve skladech a monitorov\u00e1n\u00ed pr\u016fmyslov\u00fdch za\u0159\u00edzen\u00ed.<\/p>\n\n\n\n

P\u0159i zkoum\u00e1n\u00ed syst\u00e9m\u016f RFID je jednou z nej\u010dast\u011bj\u0161\u00edch ot\u00e1zek rozd\u00edl mezi aktivn\u00ed a pasivn\u00ed RFID. Ob\u011b technologie sice vyu\u017e\u00edvaj\u00ed radiofrekven\u010dn\u00ed komunikaci, ale v\u00fdrazn\u011b se li\u0161\u00ed zdrojem energie, dosahem \u010dten\u00ed, n\u00e1klady, \u017eivotnost\u00ed a strategi\u00ed nasazen\u00ed. Tyto rozd\u00edly p\u0159\u00edmo ovliv\u0148uj\u00ed n\u00e1vrh syst\u00e9mu, investice do infrastruktury a dlouhodob\u00e9 provozn\u00ed n\u00e1klady.<\/p>\n\n\n\n

Tento pr\u016fvodce vysv\u011btluje, jak pasivn\u00ed a aktivn\u00ed RFID funguj\u00ed, kde se obvykle pou\u017e\u00edvaj\u00ed a jak se rozhodnout, kter\u00e1 mo\u017enost vyhovuje po\u017eadavk\u016fm va\u0161\u00ed aplikace.<\/p>\n\n\n\n

Co je pasivn\u00ed RFID<\/strong><\/h2>\n\n\n\n
\"UHF<\/figure>\n\n\n\n

Pasivn\u00ed RFID je typ syst\u00e9mu radiofrekven\u010dn\u00ed identifikace, u kter\u00e9ho tag neobsahuje vnit\u0159n\u00ed zdroj energie. M\u00edsto baterie je pasivn\u00ed RFID tag nap\u00e1jen elektromagnetick\u00fdm polem vys\u00edlan\u00fdm \u010dte\u010dkou RFID. D\u00edky t\u00e9to konstrukci jsou pasivn\u00ed tagy men\u0161\u00ed, levn\u011bj\u0161\u00ed a bez\u00fadr\u017ebov\u00e9 ve srovn\u00e1n\u00ed s alternativami nap\u00e1jen\u00fdmi z bateri\u00ed.<\/p>\n\n\n\n

Jak funguj\u00ed pasivn\u00ed \u0161t\u00edtky RFID<\/strong><\/h3>\n\n\n\n

Pasivn\u00ed syst\u00e9m RFID se skl\u00e1d\u00e1 ze \u010dte\u010dky, \u010dtec\u00ed ant\u00e9ny a pasivn\u00edho tagu. \u010cte\u010dka generuje st\u0159\u00eddav\u00e9 elektromagnetick\u00e9 pole o ur\u010dit\u00e9 frekvenci. Toto pole se p\u0159en\u00e1\u0161\u00ed p\u0159es ant\u00e9nu \u010dte\u010dky a vytv\u00e1\u0159\u00ed kolem n\u00ed z\u00f3nu radiofrekven\u010dn\u00ed energie. Pasivn\u00ed tagy neobsahuj\u00ed baterii, tak\u017ee z\u016fst\u00e1vaj\u00ed elektricky neaktivn\u00ed, dokud se nedostanou do tohoto RF pole.<\/p>\n\n\n\n

Kdy\u017e pasivn\u00ed zna\u010dka vstoup\u00ed do pole, ant\u00e9na zna\u010dky zachyt\u00ed elektromagnetickou energii. V n\u00edzkofrekven\u010dn\u00edch a vysokofrekven\u010dn\u00edch syst\u00e9mech se tento p\u0159enos energie uskute\u010d\u0148uje prost\u0159ednictv\u00edm induk\u010dn\u00ed vazby, co\u017e znamen\u00e1, \u017ee ant\u00e9ny tagu a \u010dte\u010dky se chovaj\u00ed jako voln\u011b spojen\u00e9 c\u00edvky v transform\u00e1toru. V syst\u00e9mech UHF doch\u00e1z\u00ed k p\u0159enosu energie \u0161\u00ed\u0159en\u00edm elektromagnetick\u00fdch vln, kdy ant\u00e9na tagu zachyt\u00ed \u010d\u00e1st vyza\u0159ovan\u00e9 RF vlny.<\/p>\n\n\n\n

Zachycen\u00e1 RF energie vyvol\u00e1v\u00e1 v ant\u00e9n\u011b tagu mal\u00fd proud. Tento proud je usm\u011brn\u011bn diodov\u00fdm obvodem uvnit\u0159 \u010dipu a p\u0159em\u011bn\u011bn na stejnosm\u011brn\u00fd proud. Jakmile nap\u011bt\u00ed dos\u00e1hne provozn\u00edho prahu \u010dipu, integrovan\u00fd obvod se zapne. V tomto okam\u017eiku m\u016f\u017ee \u010dip spustit svou vnit\u0159n\u00ed logiku, p\u0159istoupit k pam\u011b\u0165ov\u00e9 bance a p\u0159ipravit odpov\u011b\u010f.<\/p>\n\n\n\n

Pasivn\u00ed tagy RFID nevytv\u00e1\u0159ej\u00ed vlastn\u00ed RF sign\u00e1l. M\u00edsto toho komunikuj\u00ed pomoc\u00ed techniky zvan\u00e9 modulace zp\u011btn\u00e9ho rozptylu. \u010cip rychle p\u0159ep\u00edn\u00e1 impedanci ant\u00e9ny mezi dv\u011bma nebo v\u00edce stavy. Tyto zm\u011bny impedance m\u00edrn\u011b m\u011bn\u00ed zp\u016fsob, jak\u00fdm tag odr\u00e1\u017e\u00ed RF sign\u00e1l \u010dte\u010dky. \u010cte\u010dka tyto jemn\u00e9 zm\u011bny v odra\u017een\u00e9 vln\u011b detekuje a interpretuje je jako bin\u00e1rn\u00ed data.<\/p>\n\n\n\n

P\u0159en\u00e1\u0161en\u00e1 data mohou obsahovat jedine\u010dn\u00fd identifik\u00e1tor, obsah u\u017eivatelsk\u00e9 pam\u011bti nebo \u0159\u00eddic\u00ed informace specifick\u00e9 pro protokol. Nap\u0159\u00edklad v syst\u00e9mech UHF EPC uchov\u00e1v\u00e1 zna\u010dka data ve strukturovan\u00fdch pam\u011b\u0165ov\u00fdch bank\u00e1ch, jako je pam\u011b\u0165 EPC, pam\u011b\u0165 TID a voliteln\u00e1 u\u017eivatelsk\u00e1 pam\u011b\u0165. Komunikace mezi \u010dte\u010dkou a zna\u010dkou prob\u00edh\u00e1 podle definovan\u00e9ho protokolu vzdu\u0161n\u00e9ho rozhran\u00ed, kter\u00fd \u0159\u00edd\u00ed \u010dasov\u00e1n\u00ed, antikolizn\u00ed postupy a k\u00f3dov\u00e1n\u00ed dat.<\/p>\n\n\n\n

Vzhledem k tomu, \u017ee tag je zcela z\u00e1visl\u00fd na z\u00edsk\u00e1van\u00e9 energii, ovliv\u0148uje jeho v\u00fdkon n\u011bkolik faktor\u016f: vzd\u00e1lenost od \u010dte\u010dky, orientace ant\u00e9ny vzhledem k poli \u010dte\u010dky, ru\u0161en\u00ed okoln\u00edm prost\u0159ed\u00edm v podob\u011b kov\u016f nebo kapalin a \u00fa\u010dinnost konstrukce ant\u00e9ny. Pokud tag nedost\u00e1v\u00e1 dostate\u010dnou energii, nem\u016f\u017ee se aktivovat a komunikace sel\u017ee.<\/p>\n\n\n\n

Frekvence pou\u017e\u00edvan\u00e9 v pasivn\u00ed RFID<\/strong><\/h3>\n\n\n\n

Pasivn\u00ed RFID pracuje ve t\u0159ech z\u00e1kladn\u00edch frekven\u010dn\u00edch p\u00e1smech: N\u00edzkofrekven\u010dn\u00ed, vysokofrekven\u010dn\u00ed a ultra-vysokofrekven\u010dn\u00ed. Pracovn\u00ed frekvence z\u00e1sadn\u011b ur\u010duje zp\u016fsob p\u0159enosu energie, p\u0159enosu dat, vzd\u00e1lenost, na jakou lze \u0161t\u00edtky \u010d\u00edst, a chov\u00e1n\u00ed syst\u00e9mu v bl\u00edzkosti materi\u00e1l\u016f, jako je kov a voda.<\/p>\n\n\n\n

N\u00edzk\u00e1 frekvence, LF p\u0159i 125 kHz nebo 134,2 kHz<\/strong><\/h4>\n\n\n\n

Syst\u00e9my LF pracuj\u00ed v oblasti bl\u00edzk\u00e9ho pole a vyu\u017e\u00edvaj\u00ed induk\u010dn\u00ed vazbu mezi ant\u00e9nou \u010dte\u010dky a ant\u00e9nou tagu. \u010cte\u010dka vytv\u00e1\u0159\u00ed magnetick\u00e9 pole a c\u00edvka \u0161t\u00edtku zachycuje energii prost\u0159ednictv\u00edm magnetick\u00e9 vazby. Proto\u017ee vlnov\u00e1 d\u00e9lka p\u0159i 125 kHz je velmi dlouh\u00e1, praktick\u00fd dosah \u010dten\u00ed je kr\u00e1tk\u00fd, obvykle n\u011bkolik centimetr\u016f a\u017e asi 30 centimetr\u016f.<\/p>\n\n\n\n

LF funguje relativn\u011b dob\u0159e v okol\u00ed vody a biologick\u00fdch tk\u00e1n\u00ed, proto\u017ee magnetick\u00e9 pole je m\u00e9n\u011b ovlivn\u011bno materi\u00e1ly s vysok\u00fdm dielektrikem. Proto se LF \u0161iroce pou\u017e\u00edv\u00e1 p\u0159i identifikaci zv\u00ed\u0159at, u u\u0161n\u00edch zn\u00e1mek hospod\u00e1\u0159sk\u00fdch zv\u00ed\u0159at a \u017eeton\u016f pro kontrolu p\u0159\u00edstupu. Rychlost p\u0159enosu dat je v\u0161ak n\u00edzk\u00e1 a mo\u017enost \u010dten\u00ed v\u00edce zna\u010dek je ve srovn\u00e1n\u00ed se syst\u00e9my UHF omezen\u00e1.<\/p>\n\n\n\n

Vysok\u00e9 frekvence, HF na 13,56 MHz<\/strong><\/h4>\n\n\n\n

VF pracuje tak\u00e9 pomoc\u00ed induk\u010dn\u00ed vazby v bl\u00edzk\u00e9m poli, ale na vy\u0161\u0161\u00ed frekvenci. Krat\u0161\u00ed vlnov\u00e1 d\u00e9lka umo\u017e\u0148uje pou\u017eit\u00ed men\u0161\u00edch ant\u00e9n ve srovn\u00e1n\u00ed s n\u00edzkofrekven\u010dn\u00edmi. Typick\u00fd \u010dtec\u00ed dosah je a\u017e 10 a\u017e 30 cm v z\u00e1vislosti na velikosti ant\u00e9ny a v\u00fdkonu \u010dte\u010dky.<\/p>\n\n\n\n

HF podporuje vy\u0161\u0161\u00ed rychlosti p\u0159enosu dat ne\u017e LF a b\u011b\u017en\u011b se pou\u017e\u00edv\u00e1 v \u010dipov\u00fdch kart\u00e1ch, za\u0159\u00edzen\u00edch NFC, syst\u00e9mech prodeje vstupenek a ve spr\u00e1v\u011b knihoven. Proto\u017ee se st\u00e1le spol\u00e9h\u00e1 na magnetickou vazbu, je HF odoln\u011bj\u0161\u00ed v\u016f\u010di vod\u011b a bl\u00edzkosti lidsk\u00e9ho t\u011bla ne\u017e UHF, ale v bl\u00edzkosti velk\u00fdch kovov\u00fdch povrch\u016f m\u016f\u017ee doj\u00edt ke sn\u00ed\u017een\u00ed v\u00fdkonu, pokud nen\u00ed pou\u017eito st\u00edn\u011bn\u00ed nebo speci\u00e1ln\u00ed konstrukce.<\/p>\n\n\n\n

Ultra-vysok\u00e9 frekvence, UHF na frekvenc\u00edch 860 a\u017e 960 MHz<\/strong><\/h4>\n\n\n\n

Pasivn\u00ed RFID v p\u00e1smu UHF pracuje v oblasti vzd\u00e1len\u00e9ho pole a vyu\u017e\u00edv\u00e1 \u0161\u00ed\u0159en\u00ed elektromagnetick\u00fdch vln sp\u00ed\u0161e ne\u017e \u010dist\u011b magnetick\u00e9 vazby. Ant\u00e9na tagu zachycuje energii z vyza\u0159ovan\u00fdch RF vln a komunikace z\u00e1vis\u00ed na zp\u011btn\u00e9m odrazu t\u011bchto vln.<\/p>\n\n\n\n

Proto\u017ee UHF vyu\u017e\u00edv\u00e1 \u0161\u00ed\u0159en\u00ed ve velk\u00e9 vzd\u00e1lenosti, m\u016f\u017ee dos\u00e1hnout v\u00fdrazn\u011b v\u011bt\u0161\u00edho dosahu \u010dten\u00ed, b\u011b\u017en\u011b 3 a\u017e 10 metr\u016f u standardn\u00edch syst\u00e9m\u016f a je\u0161t\u011b v\u011bt\u0161\u00edho p\u0159i optimalizovan\u00e9m v\u00fdkonu \u010dte\u010dky a konstrukci ant\u00e9ny. UHF tak\u00e9 podporuje vy\u0161\u0161\u00ed rychlost p\u0159enosu dat a \u00fa\u010dinn\u011bj\u0161\u00ed antikolizn\u00ed protokoly, tak\u017ee je vhodn\u00e1 pro \u010dten\u00ed mnoha tag\u016f sou\u010dasn\u011b.<\/p>\n\n\n\n

V\u00fdkonnost UHF je v\u0161ak citliv\u011bj\u0161\u00ed na faktory prost\u0159ed\u00ed. Voda pohlcuje energii UHF a kov odr\u00e1\u017e\u00ed a rozptyluje ant\u00e9ny. Z tohoto d\u016fvodu jsou pro spolehliv\u00fd provoz v pr\u016fmyslov\u00e9m prost\u0159ed\u00ed zapot\u0159eb\u00ed specializovan\u00e9 konstrukce, jako jsou tagy s kovovou mont\u00e1\u017e\u00ed nebo lad\u011bn\u00e9 dip\u00f3lov\u00e9 konstrukce.<\/p>\n\n\n\n

Typy pasivn\u00edch \u0161t\u00edtk\u016f RFID: Vlo\u017eky a tvrd\u00e9 tagy<\/strong><\/h3>\n\n\n\n

Pasivn\u00ed tagy RFID se obecn\u011b d\u011bl\u00ed na dva hlavn\u00ed form\u00e1ln\u00ed faktory: vlo\u017eky<\/strong> a tvrd\u00e9 zna\u010dky<\/strong>. Rozd\u00edl nen\u00ed ve frekvenci nebo typu \u010dipu, ale ve fyzick\u00e9 konstrukci, \u00farovni ochrany a zam\u00fd\u0161len\u00e9m prost\u0159ed\u00ed.<\/p>\n\n\n\n

RFID vlo\u017eky<\/strong><\/h4>\n\n\n\n

Vlo\u017eka RFID je nejz\u00e1kladn\u011bj\u0161\u00ed formou pasivn\u00edho \u0161t\u00edtku RFID. Skl\u00e1d\u00e1 se z mikro\u010dipu p\u0159ipojen\u00e9ho p\u0159\u00edmo k tenk\u00e9 ant\u00e9n\u011b, obvykle vyleptan\u00e9 nebo vyti\u0161t\u011bn\u00e9 na hlin\u00edku nebo m\u011bdi. Tato sestava \u010dipu a ant\u00e9ny je namontov\u00e1na na pru\u017en\u00e9m podkladu, obvykle z PET plastu.<\/p>\n\n\n\n

Existuj\u00ed dva b\u011b\u017en\u00e9 typy inkrustac\u00ed: such\u00e9 inkrustace a mokr\u00e9 inkrustace. Such\u00e1 inlay je jednodu\u0161e \u010dip a ant\u00e9na p\u0159ipevn\u011bn\u00e1 k podkladu bez lepic\u00edho podkladu. Mokr\u00fd inlay obsahuje lepidlo a separa\u010dn\u00ed podlo\u017eku, tak\u017ee je p\u0159ipraven k p\u0159em\u011bn\u011b na \u0161t\u00edtek.<\/p>\n\n\n\n

Vlo\u017eky jsou ur\u010deny k vlo\u017een\u00ed do \u0161t\u00edtk\u016f, obal\u016f nebo pap\u00edrov\u00fdch v\u00fdrobk\u016f. Jsou tenk\u00e9, lehk\u00e9 a cenov\u011b v\u00fdhodn\u00e9, tak\u017ee jsou ide\u00e1ln\u00ed pro maloobchodn\u00ed z\u00e1soby, sledov\u00e1n\u00ed dodavatelsk\u00e9ho \u0159et\u011bzce, ozna\u010dov\u00e1n\u00ed karton\u016f a paletov\u00e9 etikety. Vzhledem k tomu, \u017ee maj\u00ed minim\u00e1ln\u00ed fyzickou ochranu, jsou vlo\u017eky nejvhodn\u011bj\u0161\u00ed pro kontrolovan\u00e1 prost\u0159ed\u00ed, kde nehroz\u00ed siln\u00e9 mechanick\u00e9 nam\u00e1h\u00e1n\u00ed, vlhkost nebo chemik\u00e1lie.<\/p>\n\n\n\n

Kl\u00ed\u010dovou v\u00fdhodou inlay\u00ed je \u0161k\u00e1lovatelnost. Vyr\u00e1b\u011bj\u00ed se ve velk\u00fdch objemech pomoc\u00ed technologie roll-to-roll, co\u017e v\u00fdrazn\u011b sni\u017euje n\u00e1klady na jednotku. Odhalen\u00e1 struktura ant\u00e9ny v\u0161ak znamen\u00e1, \u017ee v\u00fdkon m\u016f\u017ee b\u00fdt ovlivn\u011bn oh\u00fdb\u00e1n\u00edm, p\u016fsoben\u00edm vlhkosti nebo bl\u00edzkost\u00ed kovu, pokud nen\u00ed speci\u00e1ln\u011b navr\u017een.<\/p>\n\n\n\n

Pevn\u00e9 \u0161t\u00edtky RFID<\/strong><\/h4>\n\n\n\n
\"Vysokoteplotn\u00ed
Vysokoteplotn\u00ed pasivn\u00ed tagy RFID<\/figcaption><\/figure>\n\n\n\n

Tvrd\u00e9 tagy jsou pasivn\u00ed tagy RFID uzav\u0159en\u00e9 v ochrann\u00e9m pouzd\u0159e z plastu, ABS, epoxidu, keramiky nebo jin\u00fdch odoln\u00fdch materi\u00e1l\u016f. Uvnit\u0159 pouzdra je st\u00e1le standardn\u00ed struktura \u010dipu a ant\u00e9ny, ale je mechanicky chr\u00e1n\u011bna a \u010dasto vylad\u011bna pro specifick\u00e9 podm\u00ednky mont\u00e1\u017ee.<\/p>\n\n\n\n

Tvrd\u00e9 \u0161t\u00edtky se pou\u017e\u00edvaj\u00ed v p\u0159\u00edpadech, kdy je rozhoduj\u00edc\u00ed odolnost v\u016f\u010di okoln\u00edmu prost\u0159ed\u00ed. Jsou navr\u017eeny tak, aby odolaly vibrac\u00edm, n\u00e1raz\u016fm, UV z\u00e1\u0159en\u00ed, chemik\u00e1li\u00edm, myc\u00edm cykl\u016fm, vysok\u00fdm teplot\u00e1m nebo venkovn\u00edm pov\u011btrnostn\u00edm podm\u00ednk\u00e1m. N\u011bkter\u00e9 jsou ultrazvukov\u011b ut\u011bsn\u011bn\u00e9 nebo vypln\u011bn\u00e9 epoxidovou prysky\u0159ic\u00ed, aby se dos\u00e1hlo odolnosti proti vod\u011b nebo dokonce ochrany IP.<\/p>\n\n\n\n

Tvrd\u00e9 \u0161t\u00edtky se li\u0161\u00ed tak\u00e9 podle zp\u016fsobu mont\u00e1\u017ee. N\u011bkter\u00e9 zahrnuj\u00ed otvory pro \u0161rouby, otvory pro zipy, lepic\u00ed podlo\u017eky nebo n\u00fdtovac\u00ed body. Jin\u00e9 jsou ur\u010deny k zabudov\u00e1n\u00ed do za\u0159\u00edzen\u00ed p\u0159i v\u00fdrob\u011b. V prost\u0159ed\u00edch s vysok\u00fdm obsahem kovu obsahuj\u00ed specializovan\u00e9 pevn\u00e9 \u0161t\u00edtky pro mont\u00e1\u017e na kov distan\u010dn\u00ed podlo\u017eku nebo konstrukci lad\u011bn\u00e9 ant\u00e9ny, kter\u00e1 izoluje ant\u00e9nu od vodiv\u00fdch povrch\u016f a zabra\u0148uje jej\u00edmu rozlad\u011bn\u00ed.<\/p>\n\n\n\n

V porovn\u00e1n\u00ed s inlayi jsou tvrd\u00e9 tagy siln\u011bj\u0161\u00ed a dra\u017e\u0161\u00ed, ale poskytuj\u00ed mechanickou spolehlivost a st\u00e1l\u00fd \u010dtec\u00ed v\u00fdkon v pr\u016fmyslov\u00fdch podm\u00ednk\u00e1ch.<\/p>\n\n\n\n

V\u00fdhody pasivn\u00ed RFID<\/strong><\/h3>\n\n\n\n
    \n
  • \u017d\u00e1dn\u00e1 intern\u00ed baterie, bez\u00fadr\u017ebov\u00fd provoz<\/li>\n\n\n\n
  • Dlouh\u00e1 provozn\u00ed \u017eivotnost, pokud je fyzicky neporu\u0161en\u00e1.<\/li>\n\n\n\n
  • N\u00edzk\u00e9 n\u00e1klady na jeden \u0161t\u00edtek, vhodn\u00e9 pro velkoobjemov\u00e9 nasazen\u00ed<\/li>\n\n\n\n
  • Mal\u00e9 a lehk\u00e9 proveden\u00ed<\/li>\n\n\n\n
  • Dostate\u010dn\u011b tenk\u00e9 pro \u0161t\u00edtky, karty a integraci do obal\u016f<\/li>\n\n\n\n
  • \u0160k\u00e1lovateln\u00e1 v\u00fdroba pomoc\u00ed v\u00fdroby z role na roli<\/li>\n\n\n\n
  • Podpora \u010dten\u00ed v\u00edce zna\u010dek s antikolizn\u00edmi protokoly<\/li>\n\n\n\n
  • \u017d\u00e1dn\u00e9 riziko selh\u00e1n\u00ed baterie<\/li>\n\n\n\n
  • Vhodn\u00e9 do n\u00e1ro\u010dn\u00fdch teplotn\u00edch podm\u00ednek, kde by baterie degradovaly.<\/li>\n<\/ul>\n\n\n\n

    Nev\u00fdhody pasivn\u00ed RFID<\/strong><\/h3>\n\n\n\n
      \n
    • Omezen\u00fd \u010dtec\u00ed dosah ve srovn\u00e1n\u00ed s aktivn\u00ed RFID<\/li>\n\n\n\n
    • Z\u00e1vis\u00ed na v\u00fdkonu generovan\u00e9m \u010dten\u00e1\u0159i<\/li>\n\n\n\n
    • V\u00fdkon ovlivn\u011bn\u00fd ru\u0161en\u00edm kovy a kapalinami, zejm\u00e9na v p\u00e1smu UHF<\/li>\n\n\n\n
    • V\u00fdkon \u010dten\u00ed s ohledem na orientaci<\/li>\n\n\n\n
    • Ni\u017e\u0161\u00ed s\u00edla sign\u00e1lu ne\u017e u aktivn\u00edch syst\u00e9m\u016f<\/li>\n\n\n\n
    • Nem\u016f\u017ee samostatn\u011b zah\u00e1jit komunikaci<\/li>\n\n\n\n
    • Omezen\u00e1 schopnost zpracov\u00e1n\u00ed z d\u016fvodu omezen\u00e9 spot\u0159eby energie<\/li>\n<\/ul>\n\n\n\n

      Aplikace pasivn\u00ed RFID<\/strong><\/h3>\n\n\n\n
        \n
      • Spr\u00e1va maloobchodn\u00edch z\u00e1sob<\/li>\n\n\n\n
      • Sledov\u00e1n\u00ed dodavatelsk\u00e9ho \u0159et\u011bzce a logistiky<\/li>\n\n\n\n
      • Identifikace skladov\u00fdch palet a karton\u016f
        P\u0159\u00edstupov\u00e9 karty a pr\u016fkazy toto\u017enosti<\/li>\n\n\n\n
      • Sledov\u00e1n\u00ed knih v knihovn\u011b<\/li>\n\n\n\n
      • Sledov\u00e1n\u00ed majetku v kontrolovan\u00e9m prost\u0159ed\u00ed<\/li>\n\n\n\n
      • Identifikace hospod\u00e1\u0159sk\u00fdch zv\u00ed\u0159at a ozna\u010dov\u00e1n\u00ed u\u0161n\u00edmi zna\u010dkami<\/li>\n\n\n\n
      • Syst\u00e9my pro spr\u00e1vu pr\u00e1dla<\/li>\n\n\n\n
      • Sledov\u00e1n\u00ed n\u00e1stroj\u016f a za\u0159\u00edzen\u00ed<\/li>\n\n\n\n
      • Syst\u00e9my pro prodej vstupenek a bezkontaktn\u00ed platby<\/li>\n<\/ul>\n\n\n\n

        Co je aktivn\u00ed RFID<\/strong><\/h2>\n\n\n\n
        \"aktivn\u00ed<\/figure>\n\n\n\n

        Aktivn\u00ed RFID je syst\u00e9m radiofrekven\u010dn\u00ed identifikace, v n\u011bm\u017e tag obsahuje vnit\u0159n\u00ed zdroj energie, obvykle baterii. Na rozd\u00edl od pasivn\u00edch tag\u016f, kter\u00e9 se spol\u00e9haj\u00ed na energii generovanou \u010dte\u010dkou, aktivn\u00ed tagy pou\u017e\u00edvaj\u00ed vlastn\u00ed baterii k nap\u00e1jen\u00ed mikro\u010dipu a p\u0159enosu sign\u00e1l\u016f. Tento z\u00e1sadn\u00ed rozd\u00edl umo\u017e\u0148uje aktivn\u00edm syst\u00e9m\u016fm RFID dos\u00e1hnout del\u0161\u00edho dosahu \u010dten\u00ed a siln\u011bj\u0161\u00edho v\u00fdstupn\u00edho sign\u00e1lu.<\/p>\n\n\n\n

        Proto\u017ee tag m\u00e1 vlastn\u00ed zdroj energie, nemus\u00ed \u010dekat na to, a\u017e mu \u010dte\u010dka dod\u00e1 energii. V z\u00e1vislosti na konstrukci m\u016f\u017ee aktivn\u00ed tag pravideln\u011b vys\u00edlat sv\u016fj sign\u00e1l nebo z\u016fstat ve stavu n\u00edzk\u00e9 spot\u0159eby energie, dokud jej \u010dte\u010dka nespust\u00ed.<\/p>\n\n\n\n

        Jak funguj\u00ed aktivn\u00ed \u0161t\u00edtky RFID<\/strong><\/h3>\n\n\n\n

        Aktivn\u00ed \u0161t\u00edtek RFID obsahuje baterii, integrovan\u00fd obvod zalo\u017een\u00fd na mikrokontrol\u00e9ru a r\u00e1diov\u00fd vys\u00edla\u010d p\u0159ipojen\u00fd k ant\u00e9n\u011b. Na rozd\u00edl od pasivn\u00edch tag\u016f, kter\u00e9 jsou z\u00e1visl\u00e9 na energii z\u00edsk\u00e1van\u00e9 ze \u010dte\u010dky, aktivn\u00ed tagy vyu\u017e\u00edvaj\u00ed k nap\u00e1jen\u00ed logick\u00fdch obvod\u016f i RF p\u0159enosov\u00e9ho stupn\u011b svou vnit\u0159n\u00ed baterii.<\/p>\n\n\n\n

        Kdy\u017e je \u0161t\u00edtek v provozu, baterie dod\u00e1v\u00e1 vnit\u0159n\u00ed elektronice stabiln\u00ed stejnosm\u011brn\u00fd proud. D\u00edky tomu m\u016f\u017ee tag pracovat nep\u0159etr\u017eit\u011b nebo podle naprogramovan\u00fdch interval\u016f. Mikrokontrol\u00e9r uvnit\u0159 tagu \u0159\u00edd\u00ed p\u0159\u00edstup do pam\u011bti, kontrolu \u010dasov\u00e1n\u00ed, p\u0159enosov\u00e9 cykly a v n\u011bkter\u00fdch proveden\u00edch i sb\u011br dat ze senzor\u016f.<\/p>\n\n\n\n

        Aktivn\u00ed tagy komunikuj\u00ed generov\u00e1n\u00edm vlastn\u00edho RF sign\u00e1lu. Nam\u00edsto odr\u00e1\u017een\u00ed pole \u010dte\u010dky prost\u0159ednictv\u00edm zp\u011btn\u00e9ho rozptylu tag aktivn\u011b moduluje a vys\u00edl\u00e1 nosnou vlnu. Tento sign\u00e1l obsahuje jedine\u010dn\u00fd identifik\u00e1tor tagu a p\u0159\u00edpadn\u00e1 dal\u0161\u00ed ulo\u017een\u00e1 data. Proto\u017ee je sign\u00e1l generov\u00e1n samotn\u00fdm tagem, je v\u00fdrazn\u011b siln\u011bj\u0161\u00ed ne\u017e pasivn\u00ed sign\u00e1ly zp\u011btn\u00e9ho rozptylu, co\u017e umo\u017e\u0148uje mnohem del\u0161\u00ed komunika\u010dn\u00ed vzd\u00e1lenosti.<\/p>\n\n\n\n

        \u0160\u00ed\u0159en\u00ed sign\u00e1lu v aktivn\u00edm RFID se obvykle odehr\u00e1v\u00e1 v oblasti vzd\u00e1len\u00e9ho pole. \u010cte\u010dka p\u0159ij\u00edm\u00e1 vys\u00edlan\u00fd sign\u00e1l tagu prost\u0159ednictv\u00edm sv\u00e9 ant\u00e9ny, zpracov\u00e1v\u00e1 jej a dek\u00f3duje vlo\u017een\u00e1 data. Proto\u017ee tag aktivn\u011b vys\u00edl\u00e1, nemus\u00ed \u010dte\u010dka vytv\u00e1\u0159et siln\u00e9 nap\u00e1jec\u00ed pole, co\u017e umo\u017e\u0148uje pokryt\u00ed rozs\u00e1hl\u00fdch oblast\u00ed s men\u0161\u00edmi energetick\u00fdmi omezen\u00edmi ve srovn\u00e1n\u00ed s pasivn\u00edmi syst\u00e9my.<\/p>\n\n\n\n

        Kapacita baterie p\u0159\u00edmo ur\u010duje provozn\u00ed \u017eivotnost. V z\u00e1vislosti na intervalu p\u0159enosu, \u00farovni v\u00fdstupn\u00edho v\u00fdkonu a teplot\u011b prost\u0159ed\u00ed se \u017eivotnost baterie m\u016f\u017ee pohybovat od jednoho roku do p\u011bti let nebo v\u00edce. <\/p>\n\n\n\n

        P\u0159\u00edtomnost baterie tak\u00e9 umo\u017e\u0148uje aktivn\u00edm \u0161t\u00edtk\u016fm podporovat dal\u0161\u00ed funkce. N\u011bkter\u00e9 n\u00e1vrhy integruj\u00ed senzory, jako jsou sn\u00edma\u010de teploty, pohybu nebo vlhkosti. Vnit\u0159n\u00ed \u0159\u00eddic\u00ed jednotka shroma\u017e\u010fuje \u00fadaje ze sn\u00edma\u010d\u016f a zahrnuje je do p\u0159en\u00e1\u0161en\u00fdch paket\u016f. D\u00edky tomu je aktivn\u00ed RFID vhodn\u00e1 i pro jin\u00e9 aplikace ne\u017e jen pro jednoduchou identifikaci, nap\u0159\u00edklad pro monitorov\u00e1n\u00ed prost\u0159ed\u00ed a sledov\u00e1n\u00ed stavu majetku.<\/p>\n\n\n\n

        Typy aktivn\u00edch \u0161t\u00edtk\u016f RFID<\/strong><\/h3>\n\n\n\n

        Aktivn\u00ed tagy RFID lze rozd\u011blit podle zp\u016fsobu komunikace a vyu\u017eit\u00ed jejich vnit\u0159n\u00ed energie. Hlavn\u00ed architektonick\u00e9 rozli\u0161en\u00ed je mezi maj\u00e1kov\u00e9 zna\u010dky<\/strong> a transpond\u00e9rov\u00e9 \u0161t\u00edtky<\/strong>, a\u010dkoli n\u011bkter\u00e9 syst\u00e9my kombinuj\u00ed prvky obou.<\/p>\n\n\n\n

        \u0160t\u00edtky maj\u00e1ku<\/strong><\/h4>\n\n\n\n

        Maj\u00e1kov\u00e9 tagy vys\u00edlaj\u00ed data v p\u0159edem definovan\u00fdch \u010dasov\u00fdch intervalech, ani\u017e by \u010dekaly na p\u0159\u00edkaz \u010dte\u010dky. Interval p\u0159enosu lze nastavit v z\u00e1vislosti na aplikaci, nap\u0159\u00edklad ka\u017edou sekundu, ka\u017ed\u00fdch n\u011bkolik sekund nebo v del\u0161\u00edch intervalech. Ka\u017ed\u00fd p\u0159enos obvykle obsahuje jedine\u010dn\u00fd identifik\u00e1tor tagu a m\u016f\u017ee tak\u00e9 obsahovat stavov\u00e9 \u00fadaje, jako je \u00farove\u0148 nabit\u00ed baterie nebo \u00fadaje ze senzor\u016f.<\/p>\n\n\n\n

        Proto\u017ee maj\u00e1kov\u00e9 zna\u010dky vys\u00edlaj\u00ed autonomn\u011b, b\u011b\u017en\u011b se pou\u017e\u00edvaj\u00ed v rozs\u00e1hl\u00fdch monitorovac\u00edch syst\u00e9mech, kde je vy\u017eadov\u00e1na nep\u0159etr\u017eit\u00e1 viditelnost. \u010ctec\u00ed infrastruktura funguje p\u0159edev\u0161\u00edm jako p\u0159ij\u00edma\u010d, kter\u00fd shroma\u017e\u010fuje periodick\u00e9 vys\u00edl\u00e1n\u00ed z v\u00edce tag\u016f. V hust\u00e9m nasazen\u00ed \u0159\u00edd\u00ed syst\u00e9mov\u00fd protokol \u010dasov\u00e1n\u00ed vys\u00edl\u00e1n\u00ed a p\u0159\u00edstup ke kan\u00e1lu, aby se omezily kolize sign\u00e1lu mezi bl\u00edzk\u00fdmi tagy.<\/p>\n\n\n\n

        Architektura maj\u00e1ku up\u0159ednost\u0148uje d\u016fslednou detekci p\u0159\u00edtomnosti. \u010cast\u011bj\u0161\u00ed p\u0159enosy v\u0161ak zvy\u0161uj\u00ed spot\u0159ebu energie, co\u017e p\u0159\u00edmo ovliv\u0148uje \u017eivotnost baterie. N\u00e1vrh syst\u00e9mu proto mus\u00ed vyva\u017eovat frekvenci aktualizac\u00ed a provozn\u00ed \u017eivotnost.<\/p>\n\n\n\n

        Zna\u010dky transpond\u00e9r\u016f<\/strong><\/h4>\n\n\n\n

        Transpond\u00e9rov\u00e9 zna\u010dky nevys\u00edlaj\u00ed nep\u0159etr\u017eit\u011b. M\u00edsto toho z\u016fst\u00e1vaj\u00ed ve stavu n\u00edzk\u00e9 spot\u0159eby nebo sp\u00e1nku, dokud neobdr\u017e\u00ed specifick\u00fd aktiva\u010dn\u00ed sign\u00e1l ze \u010dte\u010dky nebo probouzec\u00edho za\u0159\u00edzen\u00ed. Po aktivaci tag nap\u00e1j\u00ed sv\u016fj vys\u00edla\u010d a odes\u00edl\u00e1 datovou odpov\u011b\u010f.<\/p>\n\n\n\n

        Tato konstrukce omezuje zbyte\u010dn\u00e9 p\u0159enosy a \u0161et\u0159\u00ed energii baterie. Je vhodn\u00fd pro kontrolovan\u00e1 prost\u0159ed\u00ed, kde komunikace prob\u00edh\u00e1 pouze p\u0159i pr\u016fjezdu prost\u0159edk\u016f p\u0159es ur\u010den\u00e9 kontroln\u00ed body nebo p\u0159i vstupu do specifick\u00fdch z\u00f3n.<\/p>\n\n\n\n

        Syst\u00e9my transpond\u00e9r\u016f se \u010dasto spol\u00e9haj\u00ed na synchronizovanou \u010dtec\u00ed infrastrukturu. \u010cte\u010dka vy\u0161le spou\u0161t\u011bc\u00ed sign\u00e1l a tag reaguje v definovan\u00e9m \u010dasov\u00e9m okn\u011b. Vzhledem k tomu, \u017ee p\u0159enos je \u0159\u00edzen ud\u00e1lostmi, nikoliv periodicky, m\u016f\u017ee b\u00fdt \u017eivotnost bateri\u00ed ve srovn\u00e1n\u00ed s vysokofrekven\u010dn\u00edm provozem maj\u00e1ku v\u00fdrazn\u011b prodlou\u017eena.<\/p>\n\n\n\n

        Hybridn\u00ed aktivn\u00ed \u0161t\u00edtky<\/strong><\/h4>\n\n\n\n

        N\u011bkter\u00e9 aktivn\u00ed tagy RFID kombinuj\u00ed ob\u011b chov\u00e1n\u00ed. Za norm\u00e1ln\u00edch podm\u00ednek mohou pracovat v re\u017eimu pravideln\u00e9ho vys\u00edl\u00e1n\u00ed maj\u00e1ku, ale p\u0159i detekci pohybu nebo p\u0159i spu\u0161t\u011bn\u00ed infrastrukturou se p\u0159epnou na vys\u00edl\u00e1n\u00ed zalo\u017een\u00e9 na ud\u00e1lostech. Tyto hybridn\u00ed konstrukce pou\u017e\u00edvaj\u00ed vnit\u0159n\u00ed logiku k ur\u010den\u00ed, kdy vys\u00edlat, co\u017e umo\u017e\u0148uje efektivn\u011bj\u0161\u00ed vyu\u017eit\u00ed energie p\u0159i zachov\u00e1n\u00ed situa\u010dn\u00edho pov\u011bdom\u00ed.<\/p>\n\n\n\n

        Hybridn\u00ed syst\u00e9my se \u010dasto pou\u017e\u00edvaj\u00ed v aplikac\u00edch, kde jsou vy\u017eadov\u00e1ny jak pravideln\u00e9 aktualizace polohy, tak upozorn\u011bn\u00ed na z\u00e1klad\u011b ud\u00e1lost\u00ed.<\/p>\n\n\n\n

        Aktivn\u00ed \u0161t\u00edtky se senzory<\/strong><\/h4>\n\n\n\n

        Dal\u0161\u00ed klasifikace je zalo\u017eena sp\u00ed\u0161e na funk\u010dn\u00edch schopnostech ne\u017e na komunika\u010dn\u00edm chov\u00e1n\u00ed. N\u011bkter\u00e9 aktivn\u00ed tagy obsahuj\u00ed senzory prost\u0159ed\u00ed nebo pohybu. Mikrokontrol\u00e9r shroma\u017e\u010fuje data ze senzor\u016f a ukl\u00e1d\u00e1 je nebo p\u0159en\u00e1\u0161\u00ed podle naprogramovan\u00e9 logiky.<\/p>\n\n\n\n

        Tyto zna\u010dky mohou vys\u00edlat pouze p\u0159i p\u0159ekro\u010den\u00ed prahov\u00fdch hodnot sn\u00edma\u010d\u016f, nap\u0159\u00edklad p\u0159i p\u0159ekro\u010den\u00ed teploty nebo vibrac\u00ed. Tato architektura \u0159\u00edzen\u00e1 ud\u00e1lostmi omezuje redundantn\u00ed p\u0159enos dat a z\u00e1rove\u0148 zaji\u0161\u0165uje monitorov\u00e1n\u00ed stavu.<\/p>\n\n\n\n

        Pracovn\u00ed frekvence aktivn\u00ed RFID<\/strong><\/h3>\n\n\n\n

        Aktivn\u00ed syst\u00e9my RFID obvykle pracuj\u00ed ve vy\u0161\u0161\u00edch frekven\u010dn\u00edch p\u00e1smech ne\u017e pasivn\u00ed LF nebo HF syst\u00e9my. Nejpou\u017e\u00edvan\u011bj\u0161\u00ed p\u00e1sma jsou p\u0159ibli\u017en\u011b 433 MHz a 2,45 GHz, a\u010dkoli n\u011bkter\u00e9 propriet\u00e1rn\u00ed syst\u00e9my mohou pou\u017e\u00edvat jin\u00e9 region\u00e1ln\u00ed p\u0159\u00edd\u011bly. Provozn\u00ed frekvence ovliv\u0148uje chov\u00e1n\u00ed sign\u00e1lu p\u0159i \u0161\u00ed\u0159en\u00ed, vlastnosti pr\u016fniku, velikost ant\u00e9ny, profil ru\u0161en\u00ed a regula\u010dn\u00ed omezen\u00ed.<\/p>\n\n\n\n

        Jak bylo uvedeno v\u00fd\u0161e, aktivn\u00ed RFID pracuje v oblasti vzd\u00e1len\u00e9ho pole. Proto\u017ee tag generuje vlastn\u00ed RF sign\u00e1l, komunikace se op\u00edr\u00e1 o \u0161\u00ed\u0159en\u00ed elektromagnetick\u00fdch vln, nikoli o induk\u010dn\u00ed vazbu. V syst\u00e9mech vzd\u00e1len\u00e9ho pole se d\u016fle\u017eit\u00fdm konstruk\u010dn\u00edm parametrem st\u00e1v\u00e1 vlnov\u00e1 d\u00e9lka. Nap\u0159\u00edklad p\u0159i frekvenci 433 MHz je vlnov\u00e1 d\u00e9lka v\u00fdrazn\u011b del\u0161\u00ed ne\u017e p\u0159i frekvenci 2,45 GHz, co\u017e ovliv\u0148uje d\u00e9lku ant\u00e9ny, vyza\u0159ovac\u00ed diagram a zp\u016fsob interakce sign\u00e1lu s p\u0159ek\u00e1\u017ekami.<\/p>\n\n\n\n

        Syst\u00e9my pracuj\u00edc\u00ed na frekvenci 433 MHz obecn\u011b nab\u00edzej\u00ed siln\u011bj\u0161\u00ed pr\u016fnik skrz st\u011bny, reg\u00e1ly a n\u011bkter\u00e9 nekovov\u00e9 materi\u00e1ly. Ni\u017e\u0161\u00ed frekvence maj\u00ed tendenci vykazovat men\u0161\u00ed \u00fatlum p\u0159es pevn\u00e9 p\u0159edm\u011bty ve srovn\u00e1n\u00ed s vy\u0161\u0161\u00edmi mikrovlnn\u00fdmi frekvencemi. To m\u016f\u017ee zv\u00fd\u0161it spolehlivost v prost\u0159ed\u00ed s p\u0159ep\u00e1\u017ekami nebo naskl\u00e1dan\u00fdm invent\u00e1\u0159em.<\/p>\n\n\n\n

        Syst\u00e9my pracuj\u00edc\u00ed na frekvenci kolem 2,45 GHz pou\u017e\u00edvaj\u00ed krat\u0161\u00ed vlnovou d\u00e9lku. Krat\u0161\u00ed vlnov\u00e9 d\u00e9lky umo\u017e\u0148uj\u00ed men\u0161\u00ed ant\u00e9nn\u00ed struktury a mohou podporovat vy\u0161\u0161\u00ed rychlosti p\u0159enosu dat. Vy\u0161\u0161\u00ed frekvence jsou v\u0161ak n\u00e1chyln\u011bj\u0161\u00ed k pohlcov\u00e1n\u00ed materi\u00e1ly obsahuj\u00edc\u00edmi vodu a m\u016f\u017ee doch\u00e1zet k v\u011bt\u0161\u00edmu \u00fatlumu sign\u00e1lu v nep\u0159ehledn\u00e9m prost\u0159ed\u00ed.<\/p>\n\n\n\n

        Frekvence tak\u00e9 ovliv\u0148uje chov\u00e1n\u00ed v\u00edcecestn\u00e9ho sign\u00e1lu. Ve vnit\u0159n\u00edch pr\u016fmyslov\u00fdch prostor\u00e1ch se VF sign\u00e1ly odr\u00e1\u017eej\u00ed od kovov\u00fdch povrch\u016f, podlah a stroj\u016f. V\u00fdsledn\u00e9 odrazy mohou v z\u00e1vislosti na f\u00e1zov\u00e9m vyrovn\u00e1n\u00ed a um\u00edst\u011bn\u00ed ant\u00e9ny bu\u010f zlep\u0161it, nebo zhor\u0161it p\u0159\u00edjem. N\u00e1vrh syst\u00e9mu mus\u00ed p\u0159i pl\u00e1nov\u00e1n\u00ed infrastruktury \u010dte\u010dek s t\u011bmito \u00fa\u010dinky \u0161\u00ed\u0159en\u00ed po\u010d\u00edtat.<\/p>\n\n\n\n

        Dal\u0161\u00edm kritick\u00fdm faktorem je dodr\u017eov\u00e1n\u00ed pr\u00e1vn\u00edch p\u0159edpis\u016f. Aktivn\u00ed RFID pracuje ve specifick\u00fdch bezlicen\u010dn\u00edch pr\u016fmyslov\u00fdch, v\u011bdeck\u00fdch a l\u00e9ka\u0159sk\u00fdch p\u00e1smech definovan\u00fdch region\u00e1ln\u00edmi \u00fa\u0159ady. Omezen\u00ed vys\u00edlac\u00edho v\u00fdkonu, \u0161\u00ed\u0159ky p\u00e1sma kan\u00e1lu a pracovn\u00edho cyklu se v jednotliv\u00fdch zem\u00edch li\u0161\u00ed. N\u00e1vrh\u00e1\u0159i syst\u00e9m\u016f mus\u00ed zajistit, aby tagy i \u010dte\u010dky pracovaly v r\u00e1mci povolen\u00fdch emisn\u00edch limit\u016f.<\/p>\n\n\n\n

        V\u00fdhody aktivn\u00edho RFID<\/strong><\/h3>\n\n\n\n
          \n
        • Velk\u00fd komunika\u010dn\u00ed dosah ve srovn\u00e1n\u00ed s pasivn\u00ed RFID<\/li>\n\n\n\n
        • Siln\u00fd p\u0159enos sign\u00e1lu nez\u00e1visl\u00fd na energii \u010dte\u010dky<\/li>\n\n\n\n
        • Dok\u00e1\u017ee samostatn\u011b zah\u00e1jit komunikaci<\/li>\n\n\n\n
        • Vhodn\u00e9 pro sledov\u00e1n\u00ed polohy v re\u00e1ln\u00e9m \u010dase ve velk\u00fdch oblastech<\/li>\n\n\n\n
        • Podporuje integraci senzor\u016f, jako je teplota, pohyb nebo vlhkost.<\/li>\n\n\n\n
        • Men\u0161\u00ed z\u00e1vislost na p\u0159esn\u00e9 orientaci ant\u00e9ny<\/li>\n\n\n\n
        • M\u016f\u017ee pracovat v rozs\u00e1hl\u00e9m pokryt\u00ed s men\u0161\u00edm po\u010dtem \u010dtec\u00edch za\u0159\u00edzen\u00ed.<\/li>\n\n\n\n
        • Umo\u017e\u0148uje nep\u0159etr\u017eit\u00fd p\u0159ehled o pohybuj\u00edc\u00edch se prost\u0159edc\u00edch<\/li>\n\n\n\n
        • Mo\u017enost p\u0159enosu stavov\u00fdch dat, jako je \u00farove\u0148 nabit\u00ed baterie.<\/li>\n<\/ul>\n\n\n\n

          Nev\u00fdhody aktivn\u00ed technologie RFID<\/strong><\/h3>\n\n\n\n
            \n
          • Vy\u0161\u0161\u00ed n\u00e1klady na jeden \u0161t\u00edtek kv\u016fli bateri\u00edm a sou\u010d\u00e1stem vys\u00edla\u010de<\/li>\n\n\n\n
          • V\u011bt\u0161\u00ed fyzick\u00e1 velikost ve srovn\u00e1n\u00ed s pasivn\u00edmi tagy<\/li>\n\n\n\n
          • Omezen\u00e1 provozn\u00ed \u017eivotnost dan\u00e1 kapacitou baterie<\/li>\n\n\n\n
          • Vy\u017eaduje monitorov\u00e1n\u00ed a pl\u00e1nov\u00e1n\u00ed v\u00fdm\u011bny bateri\u00ed<\/li>\n\n\n\n
          • Komplexn\u011bj\u0161\u00ed pl\u00e1nov\u00e1n\u00ed infrastruktury<\/li>\n\n\n\n
          • Potenci\u00e1ln\u00ed p\u0159et\u00ed\u017een\u00ed sign\u00e1lu v hust\u00e9m nasazen\u00ed<\/li>\n\n\n\n
          • Vy\u0161\u0161\u00ed celkov\u00e1 investice do syst\u00e9mu<\/li>\n\n\n\n
          • Teplota prost\u0159ed\u00ed m\u016f\u017ee ovlivnit v\u00fdkon baterie<\/li>\n<\/ul>\n\n\n\n

            Aplikace aktivn\u00ed RFID<\/strong><\/h3>\n\n\n\n
              \n
            • Lokaliza\u010dn\u00ed syst\u00e9my v re\u00e1ln\u00e9m \u010dase ve skladech a tov\u00e1rn\u00e1ch<\/li>\n\n\n\n
            • Sledov\u00e1n\u00ed vozidel a spr\u00e1vy dvora<\/li>\n\n\n\n
            • Monitorov\u00e1n\u00ed kontejner\u016f a n\u00e1v\u011bs\u016f v logistick\u00fdch uzlech<\/li>\n\n\n\n
            • Sledov\u00e1n\u00ed majetku vysok\u00e9 hodnoty v pr\u016fmyslov\u00fdch za\u0159\u00edzen\u00edch<\/li>\n\n\n\n
            • Sledov\u00e1n\u00ed osob ve vyhrazen\u00fdch nebo nebezpe\u010dn\u00fdch oblastech<\/li>\n\n\n\n
            • Monitorov\u00e1n\u00ed studen\u00e9ho \u0159et\u011bzce pomoc\u00ed tag\u016f se senzory<\/li>\n\n\n\n
            • Sledov\u00e1n\u00ed vyu\u017eit\u00ed za\u0159\u00edzen\u00ed<\/li>\n\n\n\n
            • Syst\u00e9my viditelnosti majetku velk\u00fdch are\u00e1l\u016f nebo nemocnic<\/li>\n\n\n\n
            • Sledov\u00e1n\u00ed majetku na staveni\u0161t\u00edch a v dolech<\/li>\n\n\n\n
            • Syst\u00e9my pro sledov\u00e1n\u00ed reakce na mimo\u0159\u00e1dn\u00e9 ud\u00e1losti a evakuace<\/li>\n<\/ul>\n\n\n\n

              Aktivn\u00ed vs. pasivn\u00ed RFID: shrnut\u00ed hlavn\u00edch rozd\u00edl\u016f<\/strong><\/h2>\n\n\n\n
              \"Aktivn\u00ed
              Aktivn\u00ed vs. pasivn\u00ed RFID<\/figcaption><\/figure>\n\n\n\n

              Hlavn\u00ed rozd\u00edly mezi aktivn\u00ed a pasivn\u00ed RFID spo\u010d\u00edvaj\u00ed v architektu\u0159e nap\u00e1jen\u00ed, zp\u016fsobu komunikace, schopnosti dosahu, rozsahu syst\u00e9mu a n\u00e1kladech na \u017eivotn\u00ed cyklus. Tyto technick\u00e9 a provozn\u00ed rozd\u00edly jsou uvedeny v n\u00e1sleduj\u00edc\u00ed tabulce.<\/p>\n\n\n\n

              Parametr<\/strong><\/td>Pasivn\u00ed RFID<\/strong><\/td>Aktivn\u00ed RFID<\/strong><\/td><\/tr>
              Zdroj nap\u00e1jen\u00ed<\/td>Nem\u00e1 intern\u00ed baterii. Nap\u00e1jen\u00ed z RF pole \u010dte\u010dky (sb\u011br energie)<\/td>Intern\u00ed lithiov\u00e1 baterie nap\u00e1j\u00ed \u010dip a RF vys\u00edla\u010d<\/td><\/tr>
              Zp\u016fsob komunikace<\/td>Modulace zp\u011btn\u00e9ho rozptylu sign\u00e1lu \u010dte\u010dky<\/td>Tag generuje a vys\u00edl\u00e1 vlastn\u00ed RF sign\u00e1l.<\/td><\/tr>
              Typick\u00fd rozsah \u010dten\u00ed<\/td>LF: do 30 cmHF: do 30 cmUHF: 3 a\u017e 10 metr\u016f (standardn\u00ed syst\u00e9my), optimalizovan\u00e9 a\u017e do 15 metr\u016f<\/td>30 a\u017e 100 metr\u016f typickyV\u00edce ne\u017e 200 metr\u016f je mo\u017en\u00e9 v otev\u0159en\u00e9m prost\u0159ed\u00ed<\/td><\/tr>
              V\u00fdstupn\u00ed v\u00fdkon sign\u00e1lu<\/td>\u017d\u00e1dn\u00fd aktivn\u00ed p\u0159enos. Odra\u017een\u00fd sign\u00e1l se obvykle pohybuje v rozmez\u00ed mikrowatt\u016f.<\/td>Vys\u00edlac\u00ed v\u00fdkon obvykle 0 dBm a\u017e +20 dBm v z\u00e1vislosti na proveden\u00ed<\/td><\/tr>
              \u017divotnost baterie<\/td>Nelze pou\u017e\u00edt<\/td>Typicky 1 a\u017e 5 let v z\u00e1vislosti na intervalu p\u0159enosu<\/td><\/tr>
              Velikost \u0161t\u00edtku<\/td>M\u016f\u017ee b\u00fdt tenk\u00fd jako \u0161t\u00edtek, m\u00e9n\u011b ne\u017e 1 mm pro vlo\u017eky<\/td>Obvykle n\u011bkolik milimetr\u016f tlust\u00e9 kv\u016fli krytu baterie.<\/td><\/tr>
              N\u00e1klady na jeden \u0161t\u00edtek<\/td>P\u0159ibli\u017en\u011b $0,10 a\u017e $5 v z\u00e1vislosti na frekvenci a tvaru.<\/td>P\u0159ibli\u017en\u011b $10 a\u017e $50+ v z\u00e1vislosti na funkc\u00edch a senzorech.<\/td><\/tr>
              Po\u017eadavek na infrastrukturu<\/td>Vy\u017eaduje nap\u00e1jen\u00ed \u010dte\u010dky pro zapnut\u00ed tag\u016f<\/td>\u010cte\u010dky funguj\u00ed hlavn\u011b jako p\u0159ij\u00edma\u010de; nen\u00ed nutn\u00e9 \u017e\u00e1dn\u00e9 nap\u00e1jec\u00ed pole.<\/td><\/tr>
              \u010cten\u00ed v\u00edce zna\u010dek<\/td>UHF podporuje stovky tag\u016f za sekundu pomoc\u00ed antikolizn\u00edch protokol\u016f.<\/td>Z\u00e1le\u017e\u00ed na protokolu pro p\u0159\u00edstup ke kan\u00e1lu; hust\u00e9 maj\u00e1kov\u00e9 syst\u00e9my vy\u017eaduj\u00ed \u0159\u00edzen\u00ed \u010dasov\u00e1n\u00ed.<\/td><\/tr>
              Kapacita pam\u011bti<\/td>Pam\u011b\u0165 EPC obvykle 96 a\u017e 512 bit\u016f; voliteln\u00e1 u\u017eivatelsk\u00e1 pam\u011b\u0165 a\u017e n\u011bkolik kilobajt\u016f.<\/td>\u010casto v\u011bt\u0161\u00ed pam\u011b\u0165; m\u016f\u017ee uchov\u00e1vat protokoly nebo data ze senzor\u016f.<\/td><\/tr>
              \u00dadr\u017eba<\/td>Nen\u00ed nutn\u00e1 v\u00fdm\u011bna baterie<\/td>Monitorov\u00e1n\u00ed a v\u00fdm\u011bna bateri\u00ed<\/td><\/tr>
              Stupnice typick\u00e9ho pou\u017eit\u00ed<\/td>Zna\u010den\u00ed na \u00farovni polo\u017eek, velkoobjemov\u00e9 nasazen\u00ed (tis\u00edce a\u017e miliony zna\u010dek)<\/td>Sledov\u00e1n\u00ed na \u00farovni aktiv (stovky a\u017e tis\u00edce aktiv)<\/td><\/tr>
              Citlivost na \u017eivotn\u00ed prost\u0159ed\u00ed<\/td>UHF ovlivn\u011bn\u00e9 kovem a vodou; vy\u017eaduje kovovou konstrukci<\/td>Men\u0161\u00ed z\u00e1vislost na v\u00fdkonu \u010dte\u010dky, ale st\u00e1le podl\u00e9h\u00e1 absorpci a odrazu r\u00e1diov\u00fdch vln.<\/td><\/tr>
              Frekvence aktualizace dat<\/td>Pouze v r\u00e1mci \u010dtec\u00edho pole<\/td>Periodick\u00fd p\u0159enos (nap\u0159\u00edklad ka\u017ed\u00fdch 1 a\u017e 10 sekund) nebo p\u0159enos vyvolan\u00fd ud\u00e1lost\u00ed.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

              Z\u00e1v\u011br<\/strong><\/h2>\n\n\n\n

              Aktivn\u00ed a pasivn\u00ed RFID jsou ur\u010deny pro r\u016fzn\u00e9 typy sledov\u00e1n\u00ed. Pasivn\u00ed RFID se nejl\u00e9pe osv\u011bd\u010d\u00ed, pokud pot\u0159ebujete levn\u00e9 tagy ve velk\u00e9m mno\u017estv\u00ed a s minim\u00e1ln\u00ed \u00fadr\u017ebou. Aktivn\u00ed RFID je lep\u0161\u00ed, pokud pot\u0159ebujete v\u011bt\u0161\u00ed dosah, nep\u0159etr\u017eitou viditelnost nebo p\u0159idan\u00e9 funkce, jako jsou senzory. Spr\u00e1vn\u00e1 volba z\u00e1vis\u00ed na tom, jak daleko pot\u0159ebujete \u010d\u00edst, kolik polo\u017eek sledujete a jak velkou infrastrukturu pl\u00e1nujete vybudovat. Pochopen\u00ed t\u011bchto rozd\u00edl\u016f v\u00e1m pom\u016f\u017ee vybrat syst\u00e9m, kter\u00fd odpov\u00edd\u00e1 va\u0161emu re\u00e1ln\u00e9mu provozn\u00edmu prost\u0159ed\u00ed.<\/p>\n\n\n\n

              M\u00e1te-li jak\u00e9koli dotazy t\u00fdkaj\u00edc\u00ed se aktivn\u00ed nebo pasivn\u00ed RFID nebo chcete-li zakoupit aktivn\u00ed nebo pasivn\u00ed tagy RFID, zanechte pros\u00edm koment\u00e1\u0159 n\u00ed\u017ee nebo n\u00e1s kontaktujte p\u0159\u00edmo.<\/p>","protected":false},"excerpt":{"rendered":"

              RFID technology is widely used in modern tracking and identification systems. From retail inventory and access-control cards to warehouse asset […]<\/p>\n","protected":false},"author":4,"featured_media":14985,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"right-sidebar","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14960","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/posts\/14960","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/comments?post=14960"}],"version-history":[{"count":5,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/posts\/14960\/revisions"}],"predecessor-version":[{"id":14992,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/posts\/14960\/revisions\/14992"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/media\/14985"}],"wp:attachment":[{"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/media?parent=14960"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/categories?post=14960"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/custom-rfid-tags.com\/cs\/wp-json\/wp\/v2\/tags?post=14960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}