Zivisai basa rekutora zvinhu mu RFID tag ye anti metal

Tag yeRFID yesimbi inorwisa simbi, inonziwo uhf RFID Chikwangwani cheAnti Metal, ma electronic tags akagadzirwa nezvinhu zvinonyudza zvine mabasa ekudzivirira kukanganiswa. Anogadzirisa zvinobudirira dambudziko rekuti simbi dzinotakura dzinokanganisa masaini eredhiyo ema electronic tags akabatanidzwa pamusoro pawo.

Pama tag esimbi eRFID nezvinhu zvinonyudza zvine hunhu hunotevera:

1. Vanoshandisa simbi Tag yeRfidvanogona kugadzirisa kuverenga kwedata ravo rakajairika kuti vavandudze kushanda kwesystem yekushandisa;

2. Matagi eRFID anoiswa nesimbi ane daro refu rekuverenga (daro rekuverenga nekunyora rine chekuita neRFID reader neantenna);

3. Kugona kwakasimba kwazvo kwekudzivirira kukanganiswa;

4. Nguva refu yekuchengetedza data, kusvika kumakore makumi maviri, mashandiro emari yakawanda;

5. Kuverengwa kwematag akawanda hakukanganisirwi kana kuganhurirwa nehuwandu hwematag ari munzvimbo yebasa;

6. Ma RFID tag esimbi anoshandisa dhizaini yebhendi rekushanda rakafara kwazvo, iro risingangoteveri mitemo yakakodzera yeindasitiri chete, asiwo rinogona kugadzirwa nekushandiswa nenzira inochinjika;

7. Nzvimbo yekuchengetera ndeyevashandisi kuti vaite mabasa ekuverenga, kunyora, kudzima uye kunyora patsva, uye vanogonawo kutsanangura nzvimbo inogara yakatsaurirwa vashandisi.
Nekuvandudzwa kweInternet of Things, kushandiswa kwezvinhu zvinonyudza muRFID tags kwava kwakajairika. Chikwangwani chesimbi cheUHF Inoshandiswawo munzvimbo dzakasiyana-siyana, kusanganisira manejimendi yezvekufambisa, manejimendi yewarehouse, manejimendi yemidziyo nedzimwe nzvimbo. Saka basa rekutora zvinhu mu uhf metal tag nderei?

MuRFID frequency range, kana mafungu emagetsi akasangana nesimbi, nekuda kwechiitiko che eddy current, kuratidzwa kwakasimba kwemafungu emagetsi kunogadzirwa, uye pane musiyano wechikamu pakati pemafungu emagetsi anoratidzwa nemafungu echiitiko, zvichikonzera kukanzurwa kwemagetsi. Panguva ino, simba remagetsi rinoshanda zvechokwadi rinoderera nekukurumidza, nekuti kana resistivity yesimbi yakaderera, kurasikirwa kwemagetsi kuchava kukuru, uye dambudziko resimbi rinokonzerwa zvakanyanya. Naizvozvo, kana antenna ikakanganiswa zvakanyanya nesimbi, mirairo inopihwa nemuverengi wekadhi ichanyangarika zvachose, saka mhedzisiro yekuverenga data inokundikana. Chinhu chinonyudza chinonyanya kushandisa magnetic permeability property yakakwira. Kana ichishandiswa, pepa rinonyudza rinoiswa pakati pe denderedzwa re antenna ye RFID tag yesimbi uye substrate yesimbi, iyo inowedzera mukana wekuti simba remagineti rinokonzerwa ripfuure nepakati pechinhu chinonyudza uye inoderedza mukana wekuti ripfuure nepakati peplate yesimbi, nokudaro richideredza simba remagetsi rinokonzerwa rinogadzirwa muplate yesimbi. Chinhu chinonyudza chinoderedzawo kurasikirwa kwesimba remagineti rinokonzerwa. Panguva imwe chete, nekuda kwekuiswa kwepepa remagineti rinonyudza, simba remagineti rakayerwa richaderedzwawo, uye frequency offset ichaderedzwa, izvo zvinoenderana neresonant frequency yemuverengi wekadhi, nokudaro zvichivandudza zvikuru mhedzisiro yekuverenga kadhi uye daro.

MuRFID frequency range, kana mafungu emagetsi akasangana nesimbi, nekuda kwechiitiko che eddy current, kuratidzwa kwakasimba kwemafungu emagetsi kunogadzirwa, uye pane musiyano wechikamu pakati pemafungu emagetsi anoratidzwa nemafungu echiitiko, zvichikonzera kukanzurwa kwemagetsi. Panguva ino, simba remagetsi rinoshanda zvechokwadi rinoderera nekukurumidza, nekuti kana resistivity yesimbi yakaderera, kurasikirwa kwemagetsi kuchava kukuru, uye dambudziko resimbi rinokonzerwa zvakanyanya. Naizvozvo, kana antenna ikakanganiswa zvakanyanya nesimbi, mirairo inopihwa nemuverengi wekadhi ichanyangarika zvachose, saka mhedzisiro yekuverenga data inokundikana. Kushandiswa kukuru kwesimba remagetsi repamusoro rechinhu chinonyudza ndeyekuisa pepa rinonyudza pakati pe RFID tag yesimbiAntena yakaumbwa uye substrate yesimbi, inowedzera mukana wekuti simba remagineti rinokonzerwa ripfuure nepakati pechinhu chinonyudza uye inoderedza mukana wekuti ripfuure nepakati pesimbi, nokudaro richideredza simba remagetsi rinonyudza rinogadzirwa musimbi, uye chinhu chinonyudza chinoderedzawo kurasikirwa kwesimba remagineti rinokonzerwa. Panguva imwe chete, nekuda kwekuiswa kwepepa remagineti rinonyudza, simba reparasitic rakayerwa richaderedzwawo, frequency offset ichaderedzwa, uye zvichaenderana neresonance frequency yemuverengi wekadhi, nokudaro zvichivandudza zvikuru mhedzisiro yekuverenga kadhi uye daro.

Mamwe mapurojekiti muhupenyu achasangana nenzvimbo dzakasiyana-siyana, dzakadai sekupisa kwakanyanya nekwakaderera, mvura, madziro esimende, simba remagineti, simbi, nezvimwewo.

Semuenzaniso, munzvimbo yesimbi, mune system yekuziva ma frequency eredhiyo ine ultra-high frequency (UHF), zvakanyanya kuoma kuona ma tag akabatanidzwa pamidziyo yesimbi nekuti zvipingamupinyi zvesimbi zvinoratidzwa uye zvinokanganisa mafungu emagetsi. Parizvino, kune nzira ina dzekugadzirisa dambudziko rekutora ruzivo pamusoro pesimbi:

1. Shandisa zvinhu zvinonyudza kuti unyudze mafungu emagetsi akawandisa;

2. Dhizaini yekukwirira kwepad;

3. Kureba kwe tag antenna kunofanira kukwana;

4. Dhizaini yeantenna yakagadzika pasi.

Parizvino, nzira yatinowanzo shandisa zvinhu zvinonyudza uye urefu hwemapedhi pamwe chete. Nzira yakanaka ndeyekugadzira antenna ine bandwidth yakakura uye wobva washandisa zvinhu zvinonyudza kuti pave nehurefu hwemapedhi, izvo zvinozoita kuti pave nemhedzisiro yakanaka.