Iindaba

I-eriyali ye-RFID yinxalenye ebalulekileyo yokuqonda umsebenzi wokufunda wesixhobo se-hardware se-RFID.Umahluko we-antenna uchaphazela ngokuthe ngqo umgama wokufunda, uluhlu, njl., kwaye i-antenna yinto ebalulekileyo echaphazela izinga lokufunda.I-eriyali yeUmfundi weRFIDinokwahlulwa ikakhulu kwi-polarization yomgca kunye ne-circular polarization ngokwendlela yamandla.

I-polarization ye-eriyali ibhekiselele kumthetho wokuba isalathiso se-vector yentsimi yombane sitshintsha kunye nexesha kwi-radiation ephezulu yolwalathiso lwe-eriyali.Iinkqubo ezahlukeneyo ze-RFID zisebenzisa iindlela ezahlukeneyo ze-antenna polarization.Ezinye izicelo zingasebenzisa i-polarization yomgca, umzekelo, kumgca wendibano, indawo yethegi ye-elektroniki igxininiswe ngokusisiseko, kwaye i-antenna yethegi ye-elektroniki ingasebenzisa i-polarization yomgca.Kodwa kumaxesha amaninzi, ekubeni ukuqhelaniswa nethegi ye-elektroniki kungaziwa, uninzi lweenkqubo ze-RFID zisebenzisa i-eriyali ezijikelezayo ezijikelezayo ukunciphisa ubuntununtunu benkqubo ye-RFID ekuqhelaniseni ithegi ye-elektroniki.Ngokwesimo somzila, i-polarization inokwahlulwa ibe yi-polarization yomgca, i-circular polarization kunye ne-elliptical polarization, phakathi kwayo i-polarization yomgca kunye ne-circular polarization isetyenziswa ngokubanzi.

I-eriyali ye-RFID eyenziwe nge-polarized

I-electromagnetic wave ekhutshwa yi-eriyali yomfundi we-eriyali elungelelanisiweyo inomgca, kwaye indawo yayo ye-electromagnetic inomkhombandlela owomeleleyo, kwaye inezi mpawu zilandelayo:
1) Amandla kanomathotholo akhutshwa kwi-eriyali ngendlela yomgca;
2) Umgca womgca unentsimi ye-electromagnetic unidirectional, enamandla kune-antenna ye-polarized circularly, kodwa uluhlu luncinci kwaye lude;
3) Xa kuthelekiswa ne-antenna ye-circularized polarized, umgama wokufunda wendlela enye ubude, kodwa ngenxa yolwalathiso oluqinileyo, ububanzi bokufunda buncinci;
4) Iithegi (Ii-Identification Objects) ezilungiselelwe isalathiso sokumiselwa kohambo

Xa ithegi ye-RFID ihambelana ne-eriyali yomfundi, i-eriyali ecazululwe ngomgca inezinga elingcono lokufunda.Ke ngoko, i-eriyali elungelelanisiweyo isetyenziswa ngokubanzi ukufunda iithegi ezaziwa umkhombandlela wazo wokuhamba, onje ngeepalethi.Kuba umqa we-electromagnetic wave we-eriyali ulinganiselwe kuluhlu olumxinwa ngaphakathi kobukhulu benqwelomoya ye-eriyali yokufunda, amandla agxininiswe ngokwentelekiso kwaye anokungena kwizinto ezinoxinano oluphezulu.Ke ngoko, inamandla okungena angcono kwimathiriyeli enoxinaniso oluphezulu kwaye ilungele izinto zokuchongwa ezinkulu neziphezulu, i-eriyali ecandekileyo enemigca incama ububanzi boluhlu lokufunda ngokutshintshiselana novakalelo lwethegi kunye nobude bayo. -umgama wokufunda ngendlela.Ke ngoko, i-antenna yomfundi kufuneka ihambelane neplani yeleyibhile xa uyisebenzisa, ukuze ube nesiphumo esihle sokufunda.

RFID Setyhula iAntenna Polarized

Ukukhutshwa kwentsimi ye-electromagnetic ye-eriyali ejikelezayo yi-helical beam, enezi mpawu zilandelayo:
1) Amandla e-antenna RF akhutshwa yi-eriyali ejikelezayo;
2) I-helical beam yesetyhula ine-multi-directional field ye-electromagnetic field, kwaye uluhlu lwentsimi ye-electromagnetic lubanzi, kodwa amandla alo mancinci kune-antenna ye-polarized;
3) Indawo yokufunda ibanzi, kodwa xa kuthelekiswa ne-antenna ye-polarization yomgca, uvakalelo lwethegi yendlela enye iphantsi kwaye umgama wokufunda ufutshane;
I-4) Isebenza kwiithegi (izinto zokuchonga) indlela yokuhamba kwayo ingaqinisekanga.

Umqa we-electromagnetic ojikelezayo we-eriyali ejikelezayo iyakwazi ukuthumela macala onke ngaxeshanye.Xa udibana nemiqobo, i-electromagnetic beam ye-eriyali ejikelezayo ejikelezayo inokuguquguquka okuqinileyo kunye nokukwazi ukujikwa, okwandisa amathuba okufunda okungenwa kwelebhile isuka kuwo onke amacala, ngoko ke iimfuno zokuncamathela kweleyibhile kunye nomkhombandlela wokuhamba ziyanyamezeleka;Nangona kunjalo, ububanzi bomqadi ojikelezayo kuzisa ukucutha okuzalanayo kubungakanani be-electromagnetic wave, ukuze ithegi ibenokonwabela inxalenye yamandla ombane we-electromagnetic wave kwicala elithile, kwaye umgama wokufunda ufinyeziwe.Ke ngoko, i-eriyali eyi-circularly polarized antenna ifanelekile kwizihlandlo apho indlela yokuhamba yethegi (into echongiweyo) ingaziwa, njengendawo ye-cargo buffer yeziko lokuhambisa.

Ngokwesicelo kunye neempawu zemveliso, iShenzhenHandheld-WirelessIzixhobo ze-rfid zisebenzisa i-linear polarization kunye nezisombululo ze-polarization yesetyhula ukuhlangabezana neemfuno zeeprojekthi ezahlukeneyo, ezinokuthi zisetyenziswe kuluhlu lwempahla, uluhlu lwempahla kunye nezinye iiprojekthi, kwaye zisetyenziswe ngokubanzi kumalungiselelo, amayeza esibhedlele, Amandla, imali, ukhuseleko loluntu, imfundo, irhafu, ezothutho, ukhenketho, ukuthengisa, ukuhlamba impahla, umkhosi kunye namanye amashishini.