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Rohm yalengeza za chitukuko cha njira yopangira ma waya opanda zingwe yokhala ndi kulumikizana kwapafupi ndi field (NFC).Imaphatikiza Rohm's automotive-grade (AEC-Q100 qualified) IC (BD57121MUF-M) ndi STMicroelectronics' NFC Reader IC (ST25R3914) ndi 8-bit microcontroller (STM8A series).
Kuphatikiza pa kutsata muyezo wa WPC wa Qi wothandizira EPP (Extend Power Profile), yomwe imathandizira chojambulira kuti ipereke mphamvu mpaka 15 W, kapangidwe ka ma coil angapo akuti imathandizira malo ochapira ambiri (2.7X kuchuluka kwacharge motsutsana ndi masinthidwe a coil amodzi).Izi zikutanthauza kuti ogula sayenera kuda nkhawa kuti alumikizanitse mafoni awo kudera lomwe amalipiritsa kuti athe kulipiritsa popanda zingwe.
Kulipiritsa opanda zingwe kwa Qi kwavomerezedwa ndi European Automotive Standards Group (CE4A) ngati mulingo wolipiritsa pamagalimoto.Pofika chaka cha 2025, zidanenedweratu kuti magalimoto ambiri azikhala ndi ma charger opanda zingwe a Qi.
NFC imapereka chitsimikiziro cha ogwiritsa ntchito kulola kulumikizana kwa Bluetooth/Wi-Fi ndi mayunitsi a infotainment, loko ya zitseko/kutsegula, ndi kuyambitsa injini.NFC imathandiziranso zoikidwiratu zamagalimoto makonda a madalaivala angapo, monga malo okhala ndi magalasi, ma pre-sets a infotainment, ndi ma pre-seti amomwe akupita.Ikagwira ntchito, foni yam'manja imayikidwa pachotchaji kuti muyambe kugawana skrini ndi infotainment ndi navigation system.
M'mbuyomu, polumikiza mafoni a m'manja ku machitidwe a infotainment, kunali koyenera kupanga pairing pamanja pa chipangizo chilichonse.Komabe, pophatikiza kuyitanitsa opanda zingwe kwa Qi ndi mauthenga a NFC, Rohm yapangitsa kuti zitheke kusangolipiritsa zida zam'manja monga mafoni a m'manja, komanso kupanga Bluetooth kapena Wi-Fi pairing nthawi imodzi kudzera kutsimikizika kwa NFC.
Ma ST25R3914/3915 a NFC owerenga ma IC agalimoto amagwirizana ndi ISO14443A/B, ISO15693, FeliCa, ndi ISO18092 (NFCIP-1) Active P2P.Amaphatikizanso kutsogolo kwa analogi komwe kumawonetsa zomwe zimanenedwa kuti ndizolandirira bwino kwambiri, zomwe zimathandizira kuzindikira zinthu zakunja m'magalimoto apakatikati agalimoto.Pa mulingo wa Qi, ntchito yozindikira zinthu zakunja pozindikira zinthu zachitsulo imaphatikizidwa.Izi zimalepheretsa kupindika kapena kuwonongeka kuti zisachitike chifukwa cha kutentha kwambiri ngati chinthu chachitsulo chayikidwa pakati pa chotumizira ndi cholandila.
ST25R3914 ikuphatikiza ntchito ya ST's Automatic Antenna Tuning.Zimagwirizana ndi kusintha kwa chilengedwe kuti muchepetse zotsatira za zinthu zachitsulo pafupi ndi mlongoti wowerengera, monga makiyi kapena ndalama zomwe zimayikidwa pakatikati.Kuphatikiza apo, MISRA-C: 2012-compliant RF middleware ilipo, yomwe imathandiza makasitomala kuchepetsa ntchito yawo yopanga mapulogalamu.
Mndandanda wa STM8A wamagalimoto a 8-bit MCU umabwera m'maphukusi osiyanasiyana komanso kukula kwa kukumbukira.Zipangizo zomwe zili ndi data yophatikizidwa ma EEPROM amaperekedwanso, kuphatikiza mitundu yokhala ndi CAN yokhala ndi kutentha kwanthawi yayitali kotsimikizika mpaka 150°C, kupangitsa kuti ikhale yoyenera pamagalimoto osiyanasiyana.
Nthawi yotumiza: Sep-02-2019